community/gcc6: move from testing

needed too bootstrap openjdk7

48 files changed, 9589 insertions, 0 deletions

diff --git a/community/gcc6/0001-i386-Move-struct-ix86_frame-to-machine_function.patch b/community/gcc6/0001-i386-Move-struct-ix86_frame-to-machine_function.patch
new file mode 100644
index 0000000000..ecec2bad66
--- /dev/null
+++ b/community/gcc6/0001-i386-Move-struct-ix86_frame-to-machine_function.patch
@@ -0,0 +1,241 @@
+From b1d2df5090abc9202a7bf2d224ac90de22908d21 Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Mon, 15 Jan 2018 11:27:24 +0000
+Subject: [PATCH 01/13] i386: Move struct ix86_frame to machine_function
+
+Make ix86_frame available to i386 code generation.  This is needed to
+backport the patch set of -mindirect-branch= to mitigate variant #2 of
+the speculative execution vulnerabilities on x86 processors identified
+by CVE-2017-5715, aka Spectre.
+
+	Backport from mainline
+	2017-06-01  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+	* config/i386/i386.c (ix86_frame): Moved to ...
+	* config/i386/i386.h (ix86_frame): Here.
+	(machine_function): Add frame.
+	* config/i386/i386.c (ix86_compute_frame_layout): Repace the
+	frame argument with &cfun->machine->frame.
+	(ix86_can_use_return_insn_p): Don't pass &frame to
+	ix86_compute_frame_layout.  Copy frame from cfun->machine->frame.
+	(ix86_can_eliminate): Likewise.
+	(ix86_expand_prologue): Likewise.
+	(ix86_expand_epilogue): Likewise.
+	(ix86_expand_split_stack_prologue): Likewise.
+---
+ gcc/config/i386/i386.c | 68 ++++++++++----------------------------------------
+ gcc/config/i386/i386.h | 53 ++++++++++++++++++++++++++++++++++++++-
+ 2 files changed, 65 insertions(+), 56 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 8b5faac5129..a1ff32b648b 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -2434,53 +2434,6 @@ struct GTY(()) stack_local_entry {
+   struct stack_local_entry *next;
+ };
+ 
+-/* Structure describing stack frame layout.
+-   Stack grows downward:
+-
+-   [arguments]
+-					<- ARG_POINTER
+-   saved pc
+-
+-   saved static chain			if ix86_static_chain_on_stack
+-
+-   saved frame pointer			if frame_pointer_needed
+-					<- HARD_FRAME_POINTER
+-   [saved regs]
+-					<- regs_save_offset
+-   [padding0]
+-
+-   [saved SSE regs]
+-					<- sse_regs_save_offset
+-   [padding1]          |
+-		       |		<- FRAME_POINTER
+-   [va_arg registers]  |
+-		       |
+-   [frame]	       |
+-		       |
+-   [padding2]	       | = to_allocate
+-					<- STACK_POINTER
+-  */
+-struct ix86_frame
+-{
+-  int nsseregs;
+-  int nregs;
+-  int va_arg_size;
+-  int red_zone_size;
+-  int outgoing_arguments_size;
+-
+-  /* The offsets relative to ARG_POINTER.  */
+-  HOST_WIDE_INT frame_pointer_offset;
+-  HOST_WIDE_INT hard_frame_pointer_offset;
+-  HOST_WIDE_INT stack_pointer_offset;
+-  HOST_WIDE_INT hfp_save_offset;
+-  HOST_WIDE_INT reg_save_offset;
+-  HOST_WIDE_INT sse_reg_save_offset;
+-
+-  /* When save_regs_using_mov is set, emit prologue using
+-     move instead of push instructions.  */
+-  bool save_regs_using_mov;
+-};
+-
+ /* Which cpu are we scheduling for.  */
+ enum attr_cpu ix86_schedule;
+ 
+@@ -2572,7 +2525,7 @@ static unsigned int ix86_function_arg_boundary (machine_mode,
+ 						const_tree);
+ static rtx ix86_static_chain (const_tree, bool);
+ static int ix86_function_regparm (const_tree, const_tree);
+-static void ix86_compute_frame_layout (struct ix86_frame *);
++static void ix86_compute_frame_layout (void);
+ static bool ix86_expand_vector_init_one_nonzero (bool, machine_mode,
+ 						 rtx, rtx, int);
+ static void ix86_add_new_builtins (HOST_WIDE_INT);
+@@ -10944,7 +10897,8 @@ ix86_can_use_return_insn_p (void)
+   if (crtl->args.pops_args && crtl->args.size >= 32768)
+     return 0;
+ 
+-  ix86_compute_frame_layout (&frame);
++  ix86_compute_frame_layout ();
++  frame = cfun->machine->frame;
+   return (frame.stack_pointer_offset == UNITS_PER_WORD
+ 	  && (frame.nregs + frame.nsseregs) == 0);
+ }
+@@ -11355,8 +11309,8 @@ ix86_can_eliminate (const int from, const int to)
+ HOST_WIDE_INT
+ ix86_initial_elimination_offset (int from, int to)
+ {
+-  struct ix86_frame frame;
+-  ix86_compute_frame_layout (&frame);
++  ix86_compute_frame_layout ();
++  struct ix86_frame frame = cfun->machine->frame;
+ 
+   if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
+     return frame.hard_frame_pointer_offset;
+@@ -11395,8 +11349,9 @@ ix86_builtin_setjmp_frame_value (void)
+ /* Fill structure ix86_frame about frame of currently computed function.  */
+ 
+ static void
+-ix86_compute_frame_layout (struct ix86_frame *frame)
++ix86_compute_frame_layout (void)
+ {
++  struct ix86_frame *frame = &cfun->machine->frame;
+   unsigned HOST_WIDE_INT stack_alignment_needed;
+   HOST_WIDE_INT offset;
+   unsigned HOST_WIDE_INT preferred_alignment;
+@@ -12702,7 +12657,8 @@ ix86_expand_prologue (void)
+   m->fs.sp_offset = INCOMING_FRAME_SP_OFFSET;
+   m->fs.sp_valid = true;
+ 
+-  ix86_compute_frame_layout (&frame);
++  ix86_compute_frame_layout ();
++  frame = m->frame;
+ 
+   if (!TARGET_64BIT && ix86_function_ms_hook_prologue (current_function_decl))
+     {
+@@ -13379,7 +13335,8 @@ ix86_expand_epilogue (int style)
+   bool using_drap;
+ 
+   ix86_finalize_stack_realign_flags ();
+-  ix86_compute_frame_layout (&frame);
++  ix86_compute_frame_layout ();
++  frame = m->frame;
+ 
+   m->fs.sp_valid = (!frame_pointer_needed
+ 		    || (crtl->sp_is_unchanging
+@@ -13876,7 +13833,8 @@ ix86_expand_split_stack_prologue (void)
+   gcc_assert (flag_split_stack && reload_completed);
+ 
+   ix86_finalize_stack_realign_flags ();
+-  ix86_compute_frame_layout (&frame);
++  ix86_compute_frame_layout ();
++  frame = cfun->machine->frame;
+   allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET;
+ 
+   /* This is the label we will branch to if we have enough stack
+diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
+index 8113f83c7fd..54144166172 100644
+--- a/gcc/config/i386/i386.h
++++ b/gcc/config/i386/i386.h
+@@ -2427,9 +2427,56 @@ enum avx_u128_state
+ 
+ #define FASTCALL_PREFIX '@'
+ 
++#ifndef USED_FOR_TARGET
++/* Structure describing stack frame layout.
++   Stack grows downward:
++
++   [arguments]
++					<- ARG_POINTER
++   saved pc
++
++   saved static chain			if ix86_static_chain_on_stack
++
++   saved frame pointer			if frame_pointer_needed
++					<- HARD_FRAME_POINTER
++   [saved regs]
++					<- regs_save_offset
++   [padding0]
++
++   [saved SSE regs]
++					<- sse_regs_save_offset
++   [padding1]          |
++		       |		<- FRAME_POINTER
++   [va_arg registers]  |
++		       |
++   [frame]	       |
++		       |
++   [padding2]	       | = to_allocate
++					<- STACK_POINTER
++  */
++struct GTY(()) ix86_frame
++{
++  int nsseregs;
++  int nregs;
++  int va_arg_size;
++  int red_zone_size;
++  int outgoing_arguments_size;
++
++  /* The offsets relative to ARG_POINTER.  */
++  HOST_WIDE_INT frame_pointer_offset;
++  HOST_WIDE_INT hard_frame_pointer_offset;
++  HOST_WIDE_INT stack_pointer_offset;
++  HOST_WIDE_INT hfp_save_offset;
++  HOST_WIDE_INT reg_save_offset;
++  HOST_WIDE_INT sse_reg_save_offset;
++
++  /* When save_regs_using_mov is set, emit prologue using
++     move instead of push instructions.  */
++  bool save_regs_using_mov;
++};
++
+ /* Machine specific frame tracking during prologue/epilogue generation.  */
+ 
+-#ifndef USED_FOR_TARGET
+ struct GTY(()) machine_frame_state
+ {
+   /* This pair tracks the currently active CFA as reg+offset.  When reg
+@@ -2475,6 +2522,9 @@ struct GTY(()) machine_function {
+   int varargs_fpr_size;
+   int optimize_mode_switching[MAX_386_ENTITIES];
+ 
++  /* Cached initial frame layout for the current function.  */
++  struct ix86_frame frame;
++
+   /* Number of saved registers USE_FAST_PROLOGUE_EPILOGUE
+      has been computed for.  */
+   int use_fast_prologue_epilogue_nregs;
+@@ -2554,6 +2604,7 @@ struct GTY(()) machine_function {
+ #define ix86_current_function_calls_tls_descriptor \
+   (ix86_tls_descriptor_calls_expanded_in_cfun && df_regs_ever_live_p (SP_REG))
+ #define ix86_static_chain_on_stack (cfun->machine->static_chain_on_stack)
++#define ix86_red_zone_size (cfun->machine->frame.red_zone_size)
+ 
+ /* Control behavior of x86_file_start.  */
+ #define X86_FILE_START_VERSION_DIRECTIVE false
+-- 
+2.16.3
+
diff --git a/community/gcc6/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch b/community/gcc6/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch
new file mode 100644
index 0000000000..79219e8582
--- /dev/null
+++ b/community/gcc6/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch
@@ -0,0 +1,69 @@
+From b1fc91cda7c15264116f3dde6944ead149123653 Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Mon, 15 Jan 2018 11:28:44 +0000
+Subject: [PATCH 02/13] i386: Use reference of struct ix86_frame to avoid copy
+
+When there is no need to make a copy of ix86_frame, we can use reference
+of struct ix86_frame to avoid copy.
+
+	Backport from mainline
+	2017-11-06  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/i386.c (ix86_can_use_return_insn_p): Use reference
+	of struct ix86_frame.
+	(ix86_initial_elimination_offset): Likewise.
+	(ix86_expand_split_stack_prologue): Likewise.
+---
+ gcc/config/i386/i386.c | 8 +++-----
+ 1 file changed, 3 insertions(+), 5 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index a1ff32b648b..13ebf107e90 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -10887,7 +10887,6 @@ symbolic_reference_mentioned_p (rtx op)
+ bool
+ ix86_can_use_return_insn_p (void)
+ {
+-  struct ix86_frame frame;
+ 
+   if (! reload_completed || frame_pointer_needed)
+     return 0;
+@@ -10898,7 +10897,7 @@ ix86_can_use_return_insn_p (void)
+     return 0;
+ 
+   ix86_compute_frame_layout ();
+-  frame = cfun->machine->frame;
++  struct ix86_frame &frame = cfun->machine->frame;
+   return (frame.stack_pointer_offset == UNITS_PER_WORD
+ 	  && (frame.nregs + frame.nsseregs) == 0);
+ }
+@@ -11310,7 +11309,7 @@ HOST_WIDE_INT
+ ix86_initial_elimination_offset (int from, int to)
+ {
+   ix86_compute_frame_layout ();
+-  struct ix86_frame frame = cfun->machine->frame;
++  struct ix86_frame &frame = cfun->machine->frame;
+ 
+   if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
+     return frame.hard_frame_pointer_offset;
+@@ -13821,7 +13820,6 @@ static GTY(()) rtx split_stack_fn_large;
+ void
+ ix86_expand_split_stack_prologue (void)
+ {
+-  struct ix86_frame frame;
+   HOST_WIDE_INT allocate;
+   unsigned HOST_WIDE_INT args_size;
+   rtx_code_label *label;
+@@ -13834,7 +13832,7 @@ ix86_expand_split_stack_prologue (void)
+ 
+   ix86_finalize_stack_realign_flags ();
+   ix86_compute_frame_layout ();
+-  frame = cfun->machine->frame;
++  struct ix86_frame &frame = cfun->machine->frame;
+   allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET;
+ 
+   /* This is the label we will branch to if we have enough stack
+-- 
+2.16.3
+
diff --git a/community/gcc6/0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch b/community/gcc6/0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch
new file mode 100644
index 0000000000..2f293946ff
--- /dev/null
+++ b/community/gcc6/0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch
@@ -0,0 +1,126 @@
+From 3e39c0a8053b3e960cf4c3aea3c814e7dc97cfd6 Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Sat, 27 Jan 2018 13:10:24 +0000
+Subject: [PATCH 03/13] i386: Use const reference of struct ix86_frame to avoid
+ copy
+
+We can use const reference of struct ix86_frame to avoid making a local
+copy of ix86_frame.  ix86_expand_epilogue makes a local copy of struct
+ix86_frame and uses the reg_save_offset field as a local variable.  This
+patch uses a separate local variable for reg_save_offset.
+
+Tested on x86-64 with ada.
+
+	Backport from mainline
+	PR target/83905
+	* config/i386/i386.c (ix86_expand_prologue): Use cost reference
+	of struct ix86_frame.
+	(ix86_expand_epilogue): Likewise.  Add a local variable for
+	the reg_save_offset field in struct ix86_frame.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@257123 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+ gcc/config/i386/i386.c | 24 ++++++++++++------------
+ 1 file changed, 12 insertions(+), 12 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 13ebf107e90..6c98f7581e2 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -12633,7 +12633,6 @@ ix86_expand_prologue (void)
+ {
+   struct machine_function *m = cfun->machine;
+   rtx insn, t;
+-  struct ix86_frame frame;
+   HOST_WIDE_INT allocate;
+   bool int_registers_saved;
+   bool sse_registers_saved;
+@@ -12657,7 +12656,7 @@ ix86_expand_prologue (void)
+   m->fs.sp_valid = true;
+ 
+   ix86_compute_frame_layout ();
+-  frame = m->frame;
++  const struct ix86_frame &frame = cfun->machine->frame;
+ 
+   if (!TARGET_64BIT && ix86_function_ms_hook_prologue (current_function_decl))
+     {
+@@ -13329,13 +13328,12 @@ ix86_expand_epilogue (int style)
+ {
+   struct machine_function *m = cfun->machine;
+   struct machine_frame_state frame_state_save = m->fs;
+-  struct ix86_frame frame;
+   bool restore_regs_via_mov;
+   bool using_drap;
+ 
+   ix86_finalize_stack_realign_flags ();
+   ix86_compute_frame_layout ();
+-  frame = m->frame;
++  const struct ix86_frame &frame = cfun->machine->frame;
+ 
+   m->fs.sp_valid = (!frame_pointer_needed
+ 		    || (crtl->sp_is_unchanging
+@@ -13377,11 +13375,13 @@ ix86_expand_epilogue (int style)
+ 				  + UNITS_PER_WORD);
+     }
+ 
++  HOST_WIDE_INT reg_save_offset = frame.reg_save_offset;
++
+   /* Special care must be taken for the normal return case of a function
+      using eh_return: the eax and edx registers are marked as saved, but
+      not restored along this path.  Adjust the save location to match.  */
+   if (crtl->calls_eh_return && style != 2)
+-    frame.reg_save_offset -= 2 * UNITS_PER_WORD;
++    reg_save_offset -= 2 * UNITS_PER_WORD;
+ 
+   /* EH_RETURN requires the use of moves to function properly.  */
+   if (crtl->calls_eh_return)
+@@ -13397,11 +13397,11 @@ ix86_expand_epilogue (int style)
+   else if (TARGET_EPILOGUE_USING_MOVE
+ 	   && cfun->machine->use_fast_prologue_epilogue
+ 	   && (frame.nregs > 1
+-	       || m->fs.sp_offset != frame.reg_save_offset))
++	       || m->fs.sp_offset != reg_save_offset))
+     restore_regs_via_mov = true;
+   else if (frame_pointer_needed
+ 	   && !frame.nregs
+-	   && m->fs.sp_offset != frame.reg_save_offset)
++	   && m->fs.sp_offset != reg_save_offset)
+     restore_regs_via_mov = true;
+   else if (frame_pointer_needed
+ 	   && TARGET_USE_LEAVE
+@@ -13439,7 +13439,7 @@ ix86_expand_epilogue (int style)
+       rtx t;
+ 
+       if (frame.nregs)
+-	ix86_emit_restore_regs_using_mov (frame.reg_save_offset, style == 2);
++	ix86_emit_restore_regs_using_mov (reg_save_offset, style == 2);
+ 
+       /* eh_return epilogues need %ecx added to the stack pointer.  */
+       if (style == 2)
+@@ -13529,19 +13529,19 @@ ix86_expand_epilogue (int style)
+ 	 epilogues.  */
+       if (!m->fs.sp_valid
+  	  || (TARGET_SEH
+-	      && (m->fs.sp_offset - frame.reg_save_offset
++	      && (m->fs.sp_offset - reg_save_offset
+ 		  >= SEH_MAX_FRAME_SIZE)))
+ 	{
+ 	  pro_epilogue_adjust_stack (stack_pointer_rtx, hard_frame_pointer_rtx,
+ 				     GEN_INT (m->fs.fp_offset
+-					      - frame.reg_save_offset),
++					      - reg_save_offset),
+ 				     style, false);
+ 	}
+-      else if (m->fs.sp_offset != frame.reg_save_offset)
++      else if (m->fs.sp_offset != reg_save_offset)
+ 	{
+ 	  pro_epilogue_adjust_stack (stack_pointer_rtx, stack_pointer_rtx,
+ 				     GEN_INT (m->fs.sp_offset
+-					      - frame.reg_save_offset),
++					      - reg_save_offset),
+ 				     style,
+ 				     m->fs.cfa_reg == stack_pointer_rtx);
+ 	}
+-- 
+2.16.3
+
diff --git a/community/gcc6/0004-x86-Add-mindirect-branch.patch b/community/gcc6/0004-x86-Add-mindirect-branch.patch
new file mode 100644
index 0000000000..db5fe2f48b
--- /dev/null
+++ b/community/gcc6/0004-x86-Add-mindirect-branch.patch
@@ -0,0 +1,2149 @@
+From 64da0f4b794672ae14350b09c276422f79f78fc0 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Sat, 6 Jan 2018 22:29:55 -0800
+Subject: [PATCH 04/13] x86: Add -mindirect-branch=
+
+Add -mindirect-branch= option to convert indirect call and jump to call
+and return thunks.  The default is 'keep', which keeps indirect call and
+jump unmodified.  'thunk' converts indirect call and jump to call and
+return thunk.  'thunk-inline' converts indirect call and jump to inlined
+call and return thunk.  'thunk-extern' converts indirect call and jump to
+external call and return thunk provided in a separate object file.  You
+can control this behavior for a specific function by using the function
+attribute indirect_branch.
+
+2 kinds of thunks are geneated.  Memory thunk where the function address
+is at the top of the stack:
+
+__x86_indirect_thunk:
+	call L2
+L1:
+	pause
+	lfence
+	jmp L1
+L2:
+	lea 8(%rsp), %rsp|lea 4(%esp), %esp
+	ret
+
+Indirect jmp via memory, "jmp mem", is converted to
+
+	push memory
+	jmp __x86_indirect_thunk
+
+Indirect call via memory, "call mem", is converted to
+
+	jmp L2
+L1:
+	push [mem]
+	jmp __x86_indirect_thunk
+L2:
+	call L1
+
+Register thunk where the function address is in a register, reg:
+
+__x86_indirect_thunk_reg:
+	call	L2
+L1:
+	pause
+	lfence
+	jmp	L1
+L2:
+	movq	%reg, (%rsp)|movl    %reg, (%esp)
+	ret
+
+where reg is one of (r|e)ax, (r|e)dx, (r|e)cx, (r|e)bx, (r|e)si, (r|e)di,
+(r|e)bp, r8, r9, r10, r11, r12, r13, r14 and r15.
+
+Indirect jmp via register, "jmp reg", is converted to
+
+	jmp __x86_indirect_thunk_reg
+
+Indirect call via register, "call reg", is converted to
+
+	call __x86_indirect_thunk_reg
+
+gcc/
+
+	Backport from mainline
+	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/i386-opts.h (indirect_branch): New.
+	* config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise.
+	* config/i386/i386.c (ix86_using_red_zone): Disallow red-zone
+	with local indirect jump when converting indirect call and jump.
+	(ix86_set_indirect_branch_type): New.
+	(ix86_set_current_function): Call ix86_set_indirect_branch_type.
+	(indirectlabelno): New.
+	(indirect_thunk_needed): Likewise.
+	(indirect_thunk_bnd_needed): Likewise.
+	(indirect_thunks_used): Likewise.
+	(indirect_thunks_bnd_used): Likewise.
+	(INDIRECT_LABEL): Likewise.
+	(indirect_thunk_name): Likewise.
+	(output_indirect_thunk): Likewise.
+	(output_indirect_thunk_function): Likewise.
+	(ix86_output_indirect_branch_via_reg): Likewise.
+	(ix86_output_indirect_branch_via_push): Likewise.
+	(ix86_output_indirect_branch): Likewise.
+	(ix86_output_indirect_jmp): Likewise.
+	(ix86_code_end): Call output_indirect_thunk_function if needed.
+	(ix86_output_call_insn): Call ix86_output_indirect_branch if
+	needed.
+	(ix86_handle_fndecl_attribute): Handle indirect_branch.
+	(ix86_attribute_table): Add indirect_branch.
+	* config/i386/i386.h (machine_function): Add indirect_branch_type
+	and has_local_indirect_jump.
+	* config/i386/i386.md (indirect_jump): Set has_local_indirect_jump
+	to true.
+	(tablejump): Likewise.
+	(*indirect_jump): Use ix86_output_indirect_jmp.
+	(*tablejump_1): Likewise.
+	(simple_return_indirect_internal): Likewise.
+	* config/i386/i386.opt (mindirect-branch=): New option.
+	(indirect_branch): New.
+	(keep): Likewise.
+	(thunk): Likewise.
+	(thunk-inline): Likewise.
+	(thunk-extern): Likewise.
+	* doc/extend.texi: Document indirect_branch function attribute.
+	* doc/invoke.texi: Document -mindirect-branch= option.
+
+gcc/testsuite/
+
+	Backport from mainline
+	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* gcc.target/i386/indirect-thunk-1.c: New test.
+	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-8.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+---
+ gcc/config/i386/i386-opts.h                        |  13 +
+ gcc/config/i386/i386-protos.h                      |   1 +
+ gcc/config/i386/i386.c                             | 639 ++++++++++++++++++++-
+ gcc/config/i386/i386.h                             |   7 +
+ gcc/config/i386/i386.md                            |  26 +-
+ gcc/config/i386/i386.opt                           |  20 +
+ gcc/doc/extend.texi                                |  10 +
+ gcc/doc/invoke.texi                                |  13 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-1.c   |  20 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-2.c   |  20 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-3.c   |  21 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-4.c   |  21 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-5.c   |  17 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-6.c   |  18 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-7.c   |  44 ++
+ .../gcc.target/i386/indirect-thunk-attr-1.c        |  23 +
+ .../gcc.target/i386/indirect-thunk-attr-2.c        |  21 +
+ .../gcc.target/i386/indirect-thunk-attr-3.c        |  23 +
+ .../gcc.target/i386/indirect-thunk-attr-4.c        |  22 +
+ .../gcc.target/i386/indirect-thunk-attr-5.c        |  22 +
+ .../gcc.target/i386/indirect-thunk-attr-6.c        |  21 +
+ .../gcc.target/i386/indirect-thunk-attr-7.c        |  44 ++
+ .../gcc.target/i386/indirect-thunk-attr-8.c        |  42 ++
+ .../gcc.target/i386/indirect-thunk-bnd-1.c         |  20 +
+ .../gcc.target/i386/indirect-thunk-bnd-2.c         |  21 +
+ .../gcc.target/i386/indirect-thunk-bnd-3.c         |  19 +
+ .../gcc.target/i386/indirect-thunk-bnd-4.c         |  20 +
+ .../gcc.target/i386/indirect-thunk-extern-1.c      |  19 +
+ .../gcc.target/i386/indirect-thunk-extern-2.c      |  19 +
+ .../gcc.target/i386/indirect-thunk-extern-3.c      |  20 +
+ .../gcc.target/i386/indirect-thunk-extern-4.c      |  20 +
+ .../gcc.target/i386/indirect-thunk-extern-5.c      |  16 +
+ .../gcc.target/i386/indirect-thunk-extern-6.c      |  17 +
+ .../gcc.target/i386/indirect-thunk-extern-7.c      |  43 ++
+ .../gcc.target/i386/indirect-thunk-inline-1.c      |  20 +
+ .../gcc.target/i386/indirect-thunk-inline-2.c      |  20 +
+ .../gcc.target/i386/indirect-thunk-inline-3.c      |  21 +
+ .../gcc.target/i386/indirect-thunk-inline-4.c      |  21 +
+ .../gcc.target/i386/indirect-thunk-inline-5.c      |  17 +
+ .../gcc.target/i386/indirect-thunk-inline-6.c      |  18 +
+ .../gcc.target/i386/indirect-thunk-inline-7.c      |  44 ++
+ 41 files changed, 1486 insertions(+), 17 deletions(-)
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+
+diff --git a/gcc/config/i386/i386-opts.h b/gcc/config/i386/i386-opts.h
+index b7f92e3bea1..cc21152875f 100644
+--- a/gcc/config/i386/i386-opts.h
++++ b/gcc/config/i386/i386-opts.h
+@@ -99,4 +99,17 @@ enum stack_protector_guard {
+   SSP_GLOBAL    /* global canary */
+ };
+ 
++/* This is used to mitigate variant #2 of the speculative execution
++   vulnerabilities on x86 processors identified by CVE-2017-5715, aka
++   Spectre.  They convert indirect branches and function returns to
++   call and return thunks to avoid speculative execution via indirect
++   call, jmp and ret.  */
++enum indirect_branch {
++  indirect_branch_unset = 0,
++  indirect_branch_keep,
++  indirect_branch_thunk,
++  indirect_branch_thunk_inline,
++  indirect_branch_thunk_extern
++};
++
+ #endif
+diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h
+index ff47bc15600..eca4cbf0776 100644
+--- a/gcc/config/i386/i386-protos.h
++++ b/gcc/config/i386/i386-protos.h
+@@ -311,6 +311,7 @@ extern enum attr_cpu ix86_schedule;
+ #endif
+ 
+ extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op);
++extern const char * ix86_output_indirect_jmp (rtx call_op, bool ret_p);
+ extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load,
+ 						enum machine_mode mode);
+ 
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 6c98f7581e2..0b9fc4d3026 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -3662,12 +3662,23 @@ make_pass_stv (gcc::context *ctxt)
+   return new pass_stv (ctxt);
+ }
+ 
+-/* Return true if a red-zone is in use.  */
++/* Return true if a red-zone is in use.  We can't use red-zone when
++   there are local indirect jumps, like "indirect_jump" or "tablejump",
++   which jumps to another place in the function, since "call" in the
++   indirect thunk pushes the return address onto stack, destroying
++   red-zone.
++
++   TODO: If we can reserve the first 2 WORDs, for PUSH and, another
++   for CALL, in red-zone, we can allow local indirect jumps with
++   indirect thunk.  */
+ 
+ bool
+ ix86_using_red_zone (void)
+ {
+-  return TARGET_RED_ZONE && !TARGET_64BIT_MS_ABI;
++  return (TARGET_RED_ZONE
++	  && !TARGET_64BIT_MS_ABI
++	  && (!cfun->machine->has_local_indirect_jump
++	      || cfun->machine->indirect_branch_type == indirect_branch_keep));
+ }
+ 
+ /* Return a string that documents the current -m options.  The caller is
+@@ -6350,6 +6361,37 @@ ix86_reset_previous_fndecl (void)
+   ix86_previous_fndecl = NULL_TREE;
+ }
+ 
++/* Set the indirect_branch_type field from the function FNDECL.  */
++
++static void
++ix86_set_indirect_branch_type (tree fndecl)
++{
++  if (cfun->machine->indirect_branch_type == indirect_branch_unset)
++    {
++      tree attr = lookup_attribute ("indirect_branch",
++				    DECL_ATTRIBUTES (fndecl));
++      if (attr != NULL)
++	{
++	  tree args = TREE_VALUE (attr);
++	  if (args == NULL)
++	    gcc_unreachable ();
++	  tree cst = TREE_VALUE (args);
++	  if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0)
++	    cfun->machine->indirect_branch_type = indirect_branch_keep;
++	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0)
++	    cfun->machine->indirect_branch_type = indirect_branch_thunk;
++	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0)
++	    cfun->machine->indirect_branch_type = indirect_branch_thunk_inline;
++	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0)
++	    cfun->machine->indirect_branch_type = indirect_branch_thunk_extern;
++	  else
++	    gcc_unreachable ();
++	}
++      else
++	cfun->machine->indirect_branch_type = ix86_indirect_branch;
++    }
++}
++
+ /* Establish appropriate back-end context for processing the function
+    FNDECL.  The argument might be NULL to indicate processing at top
+    level, outside of any function scope.  */
+@@ -6360,7 +6402,13 @@ ix86_set_current_function (tree fndecl)
+      several times in the course of compiling a function, and we don't want to
+      slow things down too much or call target_reinit when it isn't safe.  */
+   if (fndecl == ix86_previous_fndecl)
+-    return;
++    {
++      /* There may be 2 function bodies for the same function FNDECL,
++	 one is extern inline and one isn't.  */
++      if (fndecl != NULL_TREE)
++	ix86_set_indirect_branch_type (fndecl);
++      return;
++    }
+ 
+   tree old_tree;
+   if (ix86_previous_fndecl == NULL_TREE)
+@@ -6377,6 +6425,8 @@ ix86_set_current_function (tree fndecl)
+       return;
+     }
+ 
++  ix86_set_indirect_branch_type (fndecl);
++
+   tree new_tree = DECL_FUNCTION_SPECIFIC_TARGET (fndecl);
+   if (new_tree == NULL_TREE)
+     new_tree = target_option_default_node;
+@@ -10962,6 +11012,220 @@ ix86_setup_frame_addresses (void)
+ # endif
+ #endif
+ 
++/* Label count for call and return thunks.  It is used to make unique
++   labels in call and return thunks.  */
++static int indirectlabelno;
++
++/* True if call and return thunk functions are needed.  */
++static bool indirect_thunk_needed = false;
++/* True if call and return thunk functions with the BND prefix are
++   needed.  */
++static bool indirect_thunk_bnd_needed = false;
++
++/* Bit masks of integer registers, which contain branch target, used
++   by call and return thunks functions.  */
++static int indirect_thunks_used;
++/* Bit masks of integer registers, which contain branch target, used
++   by call and return thunks functions with the BND prefix.  */
++static int indirect_thunks_bnd_used;
++
++#ifndef INDIRECT_LABEL
++# define INDIRECT_LABEL "LIND"
++#endif
++
++/* Fills in the label name that should be used for the indirect thunk.  */
++
++static void
++indirect_thunk_name (char name[32], int regno, bool need_bnd_p)
++{
++  if (USE_HIDDEN_LINKONCE)
++    {
++      const char *bnd = need_bnd_p ? "_bnd" : "";
++      if (regno >= 0)
++	{
++	  const char *reg_prefix;
++	  if (LEGACY_INT_REGNO_P (regno))
++	    reg_prefix = TARGET_64BIT ? "r" : "e";
++	  else
++	    reg_prefix = "";
++	  sprintf (name, "__x86_indirect_thunk%s_%s%s",
++		   bnd, reg_prefix, reg_names[regno]);
++	}
++      else
++	sprintf (name, "__x86_indirect_thunk%s", bnd);
++    }
++  else
++    {
++      if (regno >= 0)
++	{
++	  if (need_bnd_p)
++	    ASM_GENERATE_INTERNAL_LABEL (name, "LITBR", regno);
++	  else
++	    ASM_GENERATE_INTERNAL_LABEL (name, "LITR", regno);
++	}
++      else
++	{
++	  if (need_bnd_p)
++	    ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0);
++	  else
++	    ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0);
++	}
++    }
++}
++
++/* Output a call and return thunk for indirect branch.  If BND_P is
++   true, the BND prefix is needed.   If REGNO != -1,  the function
++   address is in REGNO and the call and return thunk looks like:
++
++	call	L2
++   L1:
++	pause
++	jmp	L1
++   L2:
++	mov	%REG, (%sp)
++	ret
++
++   Otherwise, the function address is on the top of stack and the
++   call and return thunk looks like:
++
++	call L2
++  L1:
++	pause
++	jmp L1
++  L2:
++	lea WORD_SIZE(%sp), %sp
++	ret
++ */
++
++static void
++output_indirect_thunk (bool need_bnd_p, int regno)
++{
++  char indirectlabel1[32];
++  char indirectlabel2[32];
++
++  ASM_GENERATE_INTERNAL_LABEL (indirectlabel1, INDIRECT_LABEL,
++			       indirectlabelno++);
++  ASM_GENERATE_INTERNAL_LABEL (indirectlabel2, INDIRECT_LABEL,
++			       indirectlabelno++);
++
++  /* Call */
++  if (need_bnd_p)
++    fputs ("\tbnd call\t", asm_out_file);
++  else
++    fputs ("\tcall\t", asm_out_file);
++  assemble_name_raw (asm_out_file, indirectlabel2);
++  fputc ('\n', asm_out_file);
++
++  ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1);
++
++  /* Pause + lfence.  */
++  fprintf (asm_out_file, "\tpause\n\tlfence\n");
++
++  /* Jump.  */
++  fputs ("\tjmp\t", asm_out_file);
++  assemble_name_raw (asm_out_file, indirectlabel1);
++  fputc ('\n', asm_out_file);
++
++  ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
++
++  if (regno >= 0)
++    {
++      /* MOV.  */
++      rtx xops[2];
++      xops[0] = gen_rtx_MEM (word_mode, stack_pointer_rtx);
++      xops[1] = gen_rtx_REG (word_mode, regno);
++      output_asm_insn ("mov\t{%1, %0|%0, %1}", xops);
++    }
++  else
++    {
++      /* LEA.  */
++      rtx xops[2];
++      xops[0] = stack_pointer_rtx;
++      xops[1] = plus_constant (Pmode, stack_pointer_rtx, UNITS_PER_WORD);
++      output_asm_insn ("lea\t{%E1, %0|%0, %E1}", xops);
++    }
++
++  if (need_bnd_p)
++    fputs ("\tbnd ret\n", asm_out_file);
++  else
++    fputs ("\tret\n", asm_out_file);
++}
++
++/* Output a funtion with a call and return thunk for indirect branch.
++   If BND_P is true, the BND prefix is needed.   If REGNO != -1,  the
++   function address is in REGNO.  Otherwise, the function address is
++   on the top of stack.  */
++
++static void
++output_indirect_thunk_function (bool need_bnd_p, int regno)
++{
++  char name[32];
++  tree decl;
++
++  /* Create __x86_indirect_thunk/__x86_indirect_thunk_bnd.  */
++  indirect_thunk_name (name, regno, need_bnd_p);
++  decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL,
++		     get_identifier (name),
++		     build_function_type_list (void_type_node, NULL_TREE));
++  DECL_RESULT (decl) = build_decl (BUILTINS_LOCATION, RESULT_DECL,
++				   NULL_TREE, void_type_node);
++  TREE_PUBLIC (decl) = 1;
++  TREE_STATIC (decl) = 1;
++  DECL_IGNORED_P (decl) = 1;
++
++#if TARGET_MACHO
++  if (TARGET_MACHO)
++    {
++      switch_to_section (darwin_sections[picbase_thunk_section]);
++      fputs ("\t.weak_definition\t", asm_out_file);
++      assemble_name (asm_out_file, name);
++      fputs ("\n\t.private_extern\t", asm_out_file);
++      assemble_name (asm_out_file, name);
++      putc ('\n', asm_out_file);
++      ASM_OUTPUT_LABEL (asm_out_file, name);
++      DECL_WEAK (decl) = 1;
++    }
++  else
++#endif
++    if (USE_HIDDEN_LINKONCE)
++      {
++	cgraph_node::create (decl)->set_comdat_group (DECL_ASSEMBLER_NAME (decl));
++
++	targetm.asm_out.unique_section (decl, 0);
++	switch_to_section (get_named_section (decl, NULL, 0));
++
++	targetm.asm_out.globalize_label (asm_out_file, name);
++	fputs ("\t.hidden\t", asm_out_file);
++	assemble_name (asm_out_file, name);
++	putc ('\n', asm_out_file);
++	ASM_DECLARE_FUNCTION_NAME (asm_out_file, name, decl);
++      }
++    else
++      {
++	switch_to_section (text_section);
++	ASM_OUTPUT_LABEL (asm_out_file, name);
++      }
++
++  DECL_INITIAL (decl) = make_node (BLOCK);
++  current_function_decl = decl;
++  allocate_struct_function (decl, false);
++  init_function_start (decl);
++  /* We're about to hide the function body from callees of final_* by
++     emitting it directly; tell them we're a thunk, if they care.  */
++  cfun->is_thunk = true;
++  first_function_block_is_cold = false;
++  /* Make sure unwind info is emitted for the thunk if needed.  */
++  final_start_function (emit_barrier (), asm_out_file, 1);
++
++  output_indirect_thunk (need_bnd_p, regno);
++
++  final_end_function ();
++  init_insn_lengths ();
++  free_after_compilation (cfun);
++  set_cfun (NULL);
++  current_function_decl = NULL;
++}
++
+ static int pic_labels_used;
+ 
+ /* Fills in the label name that should be used for a pc thunk for
+@@ -10988,11 +11252,32 @@ ix86_code_end (void)
+   rtx xops[2];
+   int regno;
+ 
++  if (indirect_thunk_needed)
++    output_indirect_thunk_function (false, -1);
++  if (indirect_thunk_bnd_needed)
++    output_indirect_thunk_function (true, -1);
++
++  for (regno = FIRST_REX_INT_REG; regno <= LAST_REX_INT_REG; regno++)
++    {
++      int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1;
++      if ((indirect_thunks_used & (1 << i)))
++	output_indirect_thunk_function (false, regno);
++
++      if ((indirect_thunks_bnd_used & (1 << i)))
++	output_indirect_thunk_function (true, regno);
++    }
++
+   for (regno = AX_REG; regno <= SP_REG; regno++)
+     {
+       char name[32];
+       tree decl;
+ 
++      if ((indirect_thunks_used & (1 << regno)))
++	output_indirect_thunk_function (false, regno);
++
++      if ((indirect_thunks_bnd_used & (1 << regno)))
++	output_indirect_thunk_function (true, regno);
++
+       if (!(pic_labels_used & (1 << regno)))
+ 	continue;
+ 
+@@ -27369,12 +27654,292 @@ ix86_nopic_noplt_attribute_p (rtx call_op)
+   return false;
+ }
+ 
++/* Output indirect branch via a call and return thunk.  CALL_OP is a
++   register which contains the branch target.  XASM is the assembly
++   template for CALL_OP.  Branch is a tail call if SIBCALL_P is true.
++   A normal call is converted to:
++
++	call __x86_indirect_thunk_reg
++
++   and a tail call is converted to:
++
++	jmp __x86_indirect_thunk_reg
++ */
++
++static void
++ix86_output_indirect_branch_via_reg (rtx call_op, bool sibcall_p)
++{
++  char thunk_name_buf[32];
++  char *thunk_name;
++  bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
++  int regno = REGNO (call_op);
++
++  if (cfun->machine->indirect_branch_type
++      != indirect_branch_thunk_inline)
++    {
++      if (cfun->machine->indirect_branch_type == indirect_branch_thunk)
++	{
++	  int i = regno;
++	  if (i >= FIRST_REX_INT_REG)
++	    i -= (FIRST_REX_INT_REG - LAST_INT_REG - 1);
++	  if (need_bnd_p)
++	    indirect_thunks_bnd_used |= 1 << i;
++	  else
++	    indirect_thunks_used |= 1 << i;
++	}
++      indirect_thunk_name (thunk_name_buf, regno, need_bnd_p);
++      thunk_name = thunk_name_buf;
++    }
++  else
++    thunk_name = NULL;
++
++  if (sibcall_p)
++    {
++      if (thunk_name != NULL)
++	{
++	  if (need_bnd_p)
++	    fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++	  else
++	    fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++	}
++      else
++	output_indirect_thunk (need_bnd_p, regno);
++    }
++  else
++    {
++      if (thunk_name != NULL)
++	{
++	  if (need_bnd_p)
++	    fprintf (asm_out_file, "\tbnd call\t%s\n", thunk_name);
++	  else
++	    fprintf (asm_out_file, "\tcall\t%s\n", thunk_name);
++	  return;
++	}
++
++      char indirectlabel1[32];
++      char indirectlabel2[32];
++
++      ASM_GENERATE_INTERNAL_LABEL (indirectlabel1,
++				   INDIRECT_LABEL,
++				   indirectlabelno++);
++      ASM_GENERATE_INTERNAL_LABEL (indirectlabel2,
++				   INDIRECT_LABEL,
++				   indirectlabelno++);
++
++      /* Jump.  */
++      if (need_bnd_p)
++	fputs ("\tbnd jmp\t", asm_out_file);
++      else
++	fputs ("\tjmp\t", asm_out_file);
++      assemble_name_raw (asm_out_file, indirectlabel2);
++      fputc ('\n', asm_out_file);
++
++      ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1);
++
++      if (thunk_name != NULL)
++	{
++	  if (need_bnd_p)
++	    fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++	  else
++	    fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++	}
++      else
++	output_indirect_thunk (need_bnd_p, regno);
++
++      ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
++
++      /* Call.  */
++      if (need_bnd_p)
++	fputs ("\tbnd call\t", asm_out_file);
++      else
++	fputs ("\tcall\t", asm_out_file);
++      assemble_name_raw (asm_out_file, indirectlabel1);
++      fputc ('\n', asm_out_file);
++    }
++}
++
++/* Output indirect branch via a call and return thunk.  CALL_OP is
++   the branch target.  XASM is the assembly template for CALL_OP.
++   Branch is a tail call if SIBCALL_P is true.  A normal call is
++   converted to:
++
++	jmp L2
++   L1:
++	push CALL_OP
++	jmp __x86_indirect_thunk
++   L2:
++	call L1
++
++   and a tail call is converted to:
++
++	push CALL_OP
++	jmp __x86_indirect_thunk
++ */
++
++static void
++ix86_output_indirect_branch_via_push (rtx call_op, const char *xasm,
++				      bool sibcall_p)
++{
++  char thunk_name_buf[32];
++  char *thunk_name;
++  char push_buf[64];
++  bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
++  int regno = -1;
++
++  if (cfun->machine->indirect_branch_type
++      != indirect_branch_thunk_inline)
++    {
++      if (cfun->machine->indirect_branch_type == indirect_branch_thunk)
++	{
++	  if (need_bnd_p)
++	    indirect_thunk_bnd_needed = true;
++	  else
++	    indirect_thunk_needed = true;
++	}
++      indirect_thunk_name (thunk_name_buf, regno, need_bnd_p);
++      thunk_name = thunk_name_buf;
++    }
++  else
++    thunk_name = NULL;
++
++  snprintf (push_buf, sizeof (push_buf), "push{%c}\t%s",
++	    TARGET_64BIT ? 'q' : 'l', xasm);
++
++  if (sibcall_p)
++    {
++      output_asm_insn (push_buf, &call_op);
++      if (thunk_name != NULL)
++	{
++	  if (need_bnd_p)
++	    fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++	  else
++	    fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++	}
++      else
++	output_indirect_thunk (need_bnd_p, regno);
++    }
++  else
++    {
++      char indirectlabel1[32];
++      char indirectlabel2[32];
++
++      ASM_GENERATE_INTERNAL_LABEL (indirectlabel1,
++				   INDIRECT_LABEL,
++				   indirectlabelno++);
++      ASM_GENERATE_INTERNAL_LABEL (indirectlabel2,
++				   INDIRECT_LABEL,
++				   indirectlabelno++);
++
++      /* Jump.  */
++      if (need_bnd_p)
++	fputs ("\tbnd jmp\t", asm_out_file);
++      else
++	fputs ("\tjmp\t", asm_out_file);
++      assemble_name_raw (asm_out_file, indirectlabel2);
++      fputc ('\n', asm_out_file);
++
++      ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1);
++
++      /* An external function may be called via GOT, instead of PLT.  */
++      if (MEM_P (call_op))
++	{
++	  struct ix86_address parts;
++	  rtx addr = XEXP (call_op, 0);
++	  if (ix86_decompose_address (addr, &parts)
++	      && parts.base == stack_pointer_rtx)
++	    {
++	      /* Since call will adjust stack by -UNITS_PER_WORD,
++		 we must convert "disp(stack, index, scale)" to
++		 "disp+UNITS_PER_WORD(stack, index, scale)".  */
++	      if (parts.index)
++		{
++		  addr = gen_rtx_MULT (Pmode, parts.index,
++				       GEN_INT (parts.scale));
++		  addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
++				       addr);
++		}
++	      else
++		addr = stack_pointer_rtx;
++
++	      rtx disp;
++	      if (parts.disp != NULL_RTX)
++		disp = plus_constant (Pmode, parts.disp,
++				      UNITS_PER_WORD);
++	      else
++		disp = GEN_INT (UNITS_PER_WORD);
++
++	      addr = gen_rtx_PLUS (Pmode, addr, disp);
++	      call_op = gen_rtx_MEM (GET_MODE (call_op), addr);
++	    }
++	}
++
++      output_asm_insn (push_buf, &call_op);
++
++      if (thunk_name != NULL)
++	{
++	  if (need_bnd_p)
++	    fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++	  else
++	    fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++	}
++      else
++	output_indirect_thunk (need_bnd_p, regno);
++
++      ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
++
++      /* Call.  */
++      if (need_bnd_p)
++	fputs ("\tbnd call\t", asm_out_file);
++      else
++	fputs ("\tcall\t", asm_out_file);
++      assemble_name_raw (asm_out_file, indirectlabel1);
++      fputc ('\n', asm_out_file);
++    }
++}
++
++/* Output indirect branch via a call and return thunk.  CALL_OP is
++   the branch target.  XASM is the assembly template for CALL_OP.
++   Branch is a tail call if SIBCALL_P is true.   */
++
++static void
++ix86_output_indirect_branch (rtx call_op, const char *xasm,
++			     bool sibcall_p)
++{
++  if (REG_P (call_op))
++    ix86_output_indirect_branch_via_reg (call_op, sibcall_p);
++  else
++    ix86_output_indirect_branch_via_push (call_op, xasm, sibcall_p);
++}
++/* Output indirect jump.  CALL_OP is the jump target.  Jump is a
++   function return if RET_P is true.  */
++
++const char *
++ix86_output_indirect_jmp (rtx call_op, bool ret_p)
++{
++  if (cfun->machine->indirect_branch_type != indirect_branch_keep)
++    {
++      /* We can't have red-zone if this isn't a function return since
++	 "call" in the indirect thunk pushes the return address onto
++	 stack, destroying red-zone.  */
++      if (!ret_p && ix86_red_zone_size != 0)
++	gcc_unreachable ();
++
++      ix86_output_indirect_branch (call_op, "%0", true);
++      return "";
++    }
++  else
++    return "%!jmp\t%A0";
++}
++
+ /* Output the assembly for a call instruction.  */
+ 
+ const char *
+ ix86_output_call_insn (rtx_insn *insn, rtx call_op)
+ {
+   bool direct_p = constant_call_address_operand (call_op, VOIDmode);
++  bool output_indirect_p
++    = (!TARGET_SEH
++       && cfun->machine->indirect_branch_type != indirect_branch_keep);
+   bool seh_nop_p = false;
+   const char *xasm;
+ 
+@@ -27383,7 +27948,13 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op)
+       if (direct_p)
+ 	{
+ 	  if (ix86_nopic_noplt_attribute_p (call_op))
+-	    xasm = "%!jmp\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++	    {
++	      direct_p = false;
++	      if (output_indirect_p)
++		xasm = "{%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++	      else
++		xasm = "%!jmp\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++	    }
+ 	  else
+ 	    xasm = "%!jmp\t%P0";
+ 	}
+@@ -27392,9 +27963,17 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op)
+       else if (TARGET_SEH)
+ 	xasm = "%!rex.W jmp\t%A0";
+       else
+-	xasm = "%!jmp\t%A0";
++	{
++	  if (output_indirect_p)
++	    xasm = "%0";
++	  else
++	    xasm = "%!jmp\t%A0";
++	}
+ 
+-      output_asm_insn (xasm, &call_op);
++      if (output_indirect_p && !direct_p)
++	ix86_output_indirect_branch (call_op, xasm, true);
++      else
++	output_asm_insn (xasm, &call_op);
+       return "";
+     }
+ 
+@@ -27431,14 +28010,28 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op)
+   if (direct_p)
+     {
+       if (ix86_nopic_noplt_attribute_p (call_op))
+-	xasm = "%!call\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++	{
++	  direct_p = false;
++	  if (output_indirect_p)
++	    xasm = "{%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++	  else
++	    xasm = "%!call\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++	}
+       else
+ 	xasm = "%!call\t%P0";
+     }
+   else
+-    xasm = "%!call\t%A0";
++    {
++      if (output_indirect_p)
++	xasm = "%0";
++      else
++	xasm = "%!call\t%A0";
++    }
+ 
+-  output_asm_insn (xasm, &call_op);
++  if (output_indirect_p && !direct_p)
++    ix86_output_indirect_branch (call_op, xasm, false);
++  else
++    output_asm_insn (xasm, &call_op);
+ 
+   if (seh_nop_p)
+     return "nop";
+@@ -44836,7 +45429,7 @@ ix86_handle_struct_attribute (tree *node, tree name, tree, int,
+ }
+ 
+ static tree
+-ix86_handle_fndecl_attribute (tree *node, tree name, tree, int,
++ix86_handle_fndecl_attribute (tree *node, tree name, tree args, int,
+ 			      bool *no_add_attrs)
+ {
+   if (TREE_CODE (*node) != FUNCTION_DECL)
+@@ -44845,6 +45438,29 @@ ix86_handle_fndecl_attribute (tree *node, tree name, tree, int,
+                name);
+       *no_add_attrs = true;
+     }
++
++  if (is_attribute_p ("indirect_branch", name))
++    {
++      tree cst = TREE_VALUE (args);
++      if (TREE_CODE (cst) != STRING_CST)
++	{
++	  warning (OPT_Wattributes,
++		   "%qE attribute requires a string constant argument",
++		   name);
++	  *no_add_attrs = true;
++	}
++      else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0
++	       && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0
++	       && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0
++	       && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0)
++	{
++	  warning (OPT_Wattributes,
++		   "argument to %qE attribute is not "
++		   "(keep|thunk|thunk-inline|thunk-extern)", name);
++	  *no_add_attrs = true;
++	}
++    }
++
+   return NULL_TREE;
+ }
+ 
+@@ -49072,6 +49688,9 @@ static const struct attribute_spec ix86_attribute_table[] =
+     false },
+   { "callee_pop_aggregate_return", 1, 1, false, true, true,
+     ix86_handle_callee_pop_aggregate_return, true },
++  { "indirect_branch", 1, 1, true, false, false,
++    ix86_handle_fndecl_attribute, false },
++
+   /* End element.  */
+   { NULL,        0, 0, false, false, false, NULL, false }
+ };
+diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
+index 54144166172..9dccdb0351e 100644
+--- a/gcc/config/i386/i386.h
++++ b/gcc/config/i386/i386.h
+@@ -2572,6 +2572,13 @@ struct GTY(()) machine_function {
+   /* If true, it is safe to not save/restore DRAP register.  */
+   BOOL_BITFIELD no_drap_save_restore : 1;
+ 
++  /* How to generate indirec branch.  */
++  ENUM_BITFIELD(indirect_branch) indirect_branch_type : 3;
++
++  /* If true, the current function has local indirect jumps, like
++     "indirect_jump" or "tablejump".  */
++  BOOL_BITFIELD has_local_indirect_jump : 1;
++
+   /* If true, there is register available for argument passing.  This
+      is used only in ix86_function_ok_for_sibcall by 32-bit to determine
+      if there is scratch register available for indirect sibcall.  In
+diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
+index d2bfe314f71..153e1622b2d 100644
+--- a/gcc/config/i386/i386.md
++++ b/gcc/config/i386/i386.md
+@@ -11807,13 +11807,18 @@
+ {
+   if (TARGET_X32)
+     operands[0] = convert_memory_address (word_mode, operands[0]);
++  cfun->machine->has_local_indirect_jump = true;
+ })
+ 
+ (define_insn "*indirect_jump"
+   [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))]
+   ""
+-  "%!jmp\t%A0"
+-  [(set_attr "type" "ibr")
++  "* return ix86_output_indirect_jmp (operands[0], false);"
++  [(set (attr "type")
++     (if_then_else (match_test "(cfun->machine->indirect_branch_type
++				 != indirect_branch_keep)")
++	(const_string "multi")
++	(const_string "ibr")))
+    (set_attr "length_immediate" "0")
+    (set_attr "maybe_prefix_bnd" "1")])
+ 
+@@ -11856,14 +11861,19 @@
+ 
+   if (TARGET_X32)
+     operands[0] = convert_memory_address (word_mode, operands[0]);
++  cfun->machine->has_local_indirect_jump = true;
+ })
+ 
+ (define_insn "*tablejump_1"
+   [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))
+    (use (label_ref (match_operand 1)))]
+   ""
+-  "%!jmp\t%A0"
+-  [(set_attr "type" "ibr")
++  "* return ix86_output_indirect_jmp (operands[0], false);"
++  [(set (attr "type")
++     (if_then_else (match_test "(cfun->machine->indirect_branch_type
++				 != indirect_branch_keep)")
++	(const_string "multi")
++	(const_string "ibr")))
+    (set_attr "length_immediate" "0")
+    (set_attr "maybe_prefix_bnd" "1")])
+ 
+@@ -12520,8 +12530,12 @@
+   [(simple_return)
+    (use (match_operand:SI 0 "register_operand" "r"))]
+   "reload_completed"
+-  "%!jmp\t%A0"
+-  [(set_attr "type" "ibr")
++  "* return ix86_output_indirect_jmp (operands[0], true);"
++  [(set (attr "type")
++     (if_then_else (match_test "(cfun->machine->indirect_branch_type
++				 != indirect_branch_keep)")
++	(const_string "multi")
++	(const_string "ibr")))
+    (set_attr "length_immediate" "0")
+    (set_attr "maybe_prefix_bnd" "1")])
+ 
+diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
+index f304b621e6a..5ffa3349a30 100644
+--- a/gcc/config/i386/i386.opt
++++ b/gcc/config/i386/i386.opt
+@@ -897,3 +897,23 @@ Enum(stack_protector_guard) String(global) Value(SSP_GLOBAL)
+ mmitigate-rop
+ Target Var(flag_mitigate_rop) Init(0)
+ Attempt to avoid generating instruction sequences containing ret bytes.
++
++mindirect-branch=
++Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch) Init(indirect_branch_keep)
++Convert indirect call and jump to call and return thunks.
++
++Enum
++Name(indirect_branch) Type(enum indirect_branch)
++Known indirect branch choices (for use with the -mindirect-branch= option):
++
++EnumValue
++Enum(indirect_branch) String(keep) Value(indirect_branch_keep)
++
++EnumValue
++Enum(indirect_branch) String(thunk) Value(indirect_branch_thunk)
++
++EnumValue
++Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline)
++
++EnumValue
++Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern)
+diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
+index 8cc4f7e1f6a..8668dae9e99 100644
+--- a/gcc/doc/extend.texi
++++ b/gcc/doc/extend.texi
+@@ -5419,6 +5419,16 @@ Specify which floating-point unit to use.  You must specify the
+ @code{target("fpmath=sse,387")} option as
+ @code{target("fpmath=sse+387")} because the comma would separate
+ different options.
++
++@item indirect_branch("@var{choice}")
++@cindex @code{indirect_branch} function attribute, x86
++On x86 targets, the @code{indirect_branch} attribute causes the compiler
++to convert indirect call and jump with @var{choice}.  @samp{keep}
++keeps indirect call and jump unmodified.  @samp{thunk} converts indirect
++call and jump to call and return thunk.  @samp{thunk-inline} converts
++indirect call and jump to inlined call and return thunk.
++@samp{thunk-extern} converts indirect call and jump to external call
++and return thunk provided in a separate object file.
+ @end table
+ 
+ On the x86, the inliner does not inline a
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index 1d3a824d7b8..6f60339a56a 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -1169,7 +1169,7 @@ See RS/6000 and PowerPC Options.
+ -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv @gol
+ -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol
+ -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol
+--mmitigate-rop}
++-mmitigate-rop -mindirect-branch=@var{choice}}
+ 
+ @emph{x86 Windows Options}
+ @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol
+@@ -24230,6 +24230,17 @@ opcodes, to mitigate against certain forms of attack. At the moment,
+ this option is limited in what it can do and should not be relied
+ on to provide serious protection.
+ 
++@item -mindirect-branch=@var{choice}
++@opindex -mindirect-branch
++Convert indirect call and jump with @var{choice}.  The default is
++@samp{keep}, which keeps indirect call and jump unmodified.
++@samp{thunk} converts indirect call and jump to call and return thunk.
++@samp{thunk-inline} converts indirect call and jump to inlined call
++and return thunk.  @samp{thunk-extern} converts indirect call and jump
++to external call and return thunk provided in a separate object file.
++You can control this behavior for a specific function by using the
++function attribute @code{indirect_branch}.  @xref{Function Attributes}.
++
+ @end table
+ 
+ These @samp{-m} switches are supported in addition to the above
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+new file mode 100644
+index 00000000000..d983e1c3e26
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+new file mode 100644
+index 00000000000..58f09b42d8a
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++void
++male_indirect_jump (long offset)
++{
++  dispatch[offset](offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+new file mode 100644
+index 00000000000..f20d35c19b6
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++int
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+new file mode 100644
+index 00000000000..0eff8fb658a
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++int
++male_indirect_jump (long offset)
++{
++  dispatch[offset](offset);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+new file mode 100644
+index 00000000000..a25b20dd808
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+@@ -0,0 +1,17 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */
++
++extern void bar (void);
++
++void
++foo (void)
++{
++  bar ();
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+new file mode 100644
+index 00000000000..cff114a6c29
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+@@ -0,0 +1,18 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */
++
++extern void bar (void);
++
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+new file mode 100644
+index 00000000000..afdb6007986
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+@@ -0,0 +1,44 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++void func0 (void);
++void func1 (void);
++void func2 (void);
++void func3 (void);
++void func4 (void);
++void func4 (void);
++void func5 (void);
++
++void
++bar (int i)
++{
++  switch (i)
++    {
++    default:
++      func0 ();
++      break;
++    case 1:
++      func1 ();
++      break;
++    case 2:
++      func2 ();
++      break;
++    case 3:
++      func3 ();
++      break;
++    case 4:
++      func4 ();
++      break;
++    case 5:
++      func5 ();
++      break;
++    }
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+new file mode 100644
+index 00000000000..d64d978b699
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+@@ -0,0 +1,23 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++extern void male_indirect_jump (long)
++  __attribute__ ((indirect_branch("thunk")));
++
++void
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+new file mode 100644
+index 00000000000..93067454d3d
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++__attribute__ ((indirect_branch("thunk")))
++void
++male_indirect_jump (long offset)
++{
++  dispatch[offset](offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+new file mode 100644
+index 00000000000..97744d65729
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+@@ -0,0 +1,23 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++extern int male_indirect_jump (long)
++  __attribute__ ((indirect_branch("thunk-inline")));
++
++int
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+new file mode 100644
+index 00000000000..bfce3ea5cb2
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++__attribute__ ((indirect_branch("thunk-inline")))
++int
++male_indirect_jump (long offset)
++{
++  dispatch[offset](offset);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+new file mode 100644
+index 00000000000..0833606046b
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++extern int male_indirect_jump (long)
++  __attribute__ ((indirect_branch("thunk-extern")));
++
++int
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+new file mode 100644
+index 00000000000..2eba0fbd9b2
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++__attribute__ ((indirect_branch("thunk-extern")))
++int
++male_indirect_jump (long offset)
++{
++  dispatch[offset](offset);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+new file mode 100644
+index 00000000000..f58427eae11
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+@@ -0,0 +1,44 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++void func0 (void);
++void func1 (void);
++void func2 (void);
++void func3 (void);
++void func4 (void);
++void func4 (void);
++void func5 (void);
++
++__attribute__ ((indirect_branch("thunk-extern")))
++void
++bar (int i)
++{
++  switch (i)
++    {
++    default:
++      func0 ();
++      break;
++    case 1:
++      func1 ();
++      break;
++    case 2:
++      func2 ();
++      break;
++    case 3:
++      func3 ();
++      break;
++    case 4:
++      func4 ();
++      break;
++    case 5:
++      func5 ();
++      break;
++    }
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
+new file mode 100644
+index 00000000000..564ed39547c
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
+@@ -0,0 +1,42 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++void func0 (void);
++void func1 (void);
++void func2 (void);
++void func3 (void);
++void func4 (void);
++void func4 (void);
++void func5 (void);
++
++__attribute__ ((indirect_branch("keep")))
++void
++bar (int i)
++{
++  switch (i)
++    {
++    default:
++      func0 ();
++      break;
++    case 1:
++      func1 ();
++      break;
++    case 2:
++      func2 ();
++      break;
++    case 3:
++      func3 ();
++      break;
++    case 4:
++      func4 ();
++      break;
++    case 5:
++      func5 ();
++      break;
++    }
++}
++
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+new file mode 100644
+index 00000000000..50fbee20a5a
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile { target { ! x32 } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++
++void (*dispatch) (char *);
++char buf[10];
++
++void
++foo (void)
++{
++  dispatch (buf);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd ret" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+new file mode 100644
+index 00000000000..2976e67adce
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile { target { ! x32 } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++
++void (*dispatch) (char *);
++char buf[10];
++
++int
++foo (void)
++{
++  dispatch (buf);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd ret" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+new file mode 100644
+index 00000000000..da4bc98ef23
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+@@ -0,0 +1,19 @@
++/* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
++
++void bar (char *);
++char buf[10];
++
++void
++foo (void)
++{
++  bar (buf);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd ret" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+new file mode 100644
+index 00000000000..c64d12ef989
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
++
++void bar (char *);
++char buf[10];
++
++int
++foo (void)
++{
++  bar (buf);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler "bnd ret" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+new file mode 100644
+index 00000000000..49f27b49465
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+@@ -0,0 +1,19 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+new file mode 100644
+index 00000000000..a1e3eb6fc74
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+@@ -0,0 +1,19 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++void
++male_indirect_jump (long offset)
++{
++  dispatch[offset](offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+new file mode 100644
+index 00000000000..395634e7e5c
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++int
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+new file mode 100644
+index 00000000000..fd3f63379a1
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++int
++male_indirect_jump (long offset)
++{
++  dispatch[offset](offset);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+new file mode 100644
+index 00000000000..ba2f92b6f34
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+@@ -0,0 +1,16 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++
++extern void bar (void);
++
++void
++foo (void)
++{
++  bar ();
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+new file mode 100644
+index 00000000000..0c5a2d472c6
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+@@ -0,0 +1,17 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++
++extern void bar (void);
++
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+new file mode 100644
+index 00000000000..665252327aa
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+@@ -0,0 +1,43 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++
++void func0 (void);
++void func1 (void);
++void func2 (void);
++void func3 (void);
++void func4 (void);
++void func4 (void);
++void func5 (void);
++
++void
++bar (int i)
++{
++  switch (i)
++    {
++    default:
++      func0 ();
++      break;
++    case 1:
++      func1 ();
++      break;
++    case 2:
++      func2 ();
++      break;
++    case 3:
++      func3 ();
++      break;
++    case 4:
++      func4 ();
++      break;
++    case 5:
++      func5 ();
++      break;
++    }
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+new file mode 100644
+index 00000000000..68c0ff713b3
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+new file mode 100644
+index 00000000000..e2da1fcb683
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++void
++male_indirect_jump (long offset)
++{
++  dispatch[offset](offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+new file mode 100644
+index 00000000000..244fec708d6
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++int
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+new file mode 100644
+index 00000000000..107ebe32f54
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++int
++male_indirect_jump (long offset)
++{
++  dispatch[offset](offset);
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+new file mode 100644
+index 00000000000..17b04ef2229
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+@@ -0,0 +1,17 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++
++extern void bar (void);
++
++void
++foo (void)
++{
++  bar ();
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+new file mode 100644
+index 00000000000..d9eb11285aa
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+@@ -0,0 +1,18 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++
++extern void bar (void);
++
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+new file mode 100644
+index 00000000000..d02b1dcb1b9
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+@@ -0,0 +1,44 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++
++void func0 (void);
++void func1 (void);
++void func2 (void);
++void func3 (void);
++void func4 (void);
++void func4 (void);
++void func5 (void);
++
++void
++bar (int i)
++{
++  switch (i)
++    {
++    default:
++      func0 ();
++      break;
++    case 1:
++      func1 ();
++      break;
++    case 2:
++      func2 ();
++      break;
++    case 3:
++      func3 ();
++      break;
++    case 4:
++      func4 ();
++      break;
++    case 5:
++      func5 ();
++      break;
++    }
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+-- 
+2.16.3
+
diff --git a/community/gcc6/0005-x86-Add-mfunction-return.patch b/community/gcc6/0005-x86-Add-mfunction-return.patch
new file mode 100644
index 0000000000..f311d06780
--- /dev/null
+++ b/community/gcc6/0005-x86-Add-mfunction-return.patch
@@ -0,0 +1,1565 @@
+From 3b946bffc536481a484d9a2b98b829f3d71b5519 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Sat, 6 Jan 2018 22:29:56 -0800
+Subject: [PATCH 05/13] x86: Add -mfunction-return=
+
+Add -mfunction-return= option to convert function return to call and
+return thunks.  The default is 'keep', which keeps function return
+unmodified.  'thunk' converts function return to call and return thunk.
+'thunk-inline' converts function return to inlined call and return thunk.
+'thunk-extern' converts function return to external call and return
+thunk provided in a separate object file.  You can control this behavior
+for a specific function by using the function attribute function_return.
+
+Function return thunk is the same as memory thunk for -mindirect-branch=
+where the return address is at the top of the stack:
+
+__x86_return_thunk:
+	call L2
+L1:
+	pause
+	lfence
+	jmp L1
+L2:
+	lea 8(%rsp), %rsp|lea 4(%esp), %esp
+	ret
+
+and function return becomes
+
+	jmp __x86_return_thunk
+
+-mindirect-branch= tests are updated with -mfunction-return=keep to
+avoid false test failures when -mfunction-return=thunk is added to
+RUNTESTFLAGS for "make check".
+
+gcc/
+
+	Backport from mainline
+	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/i386-protos.h (ix86_output_function_return): New.
+	* config/i386/i386.c (ix86_set_indirect_branch_type): Also
+	set function_return_type.
+	(indirect_thunk_name): Add ret_p to indicate thunk for function
+	return.
+	(output_indirect_thunk_function): Pass false to
+	indirect_thunk_name.
+	(ix86_output_indirect_branch_via_reg): Likewise.
+	(ix86_output_indirect_branch_via_push): Likewise.
+	(output_indirect_thunk_function): Create alias for function
+	return thunk if regno < 0.
+	(ix86_output_function_return): New function.
+	(ix86_handle_fndecl_attribute): Handle function_return.
+	(ix86_attribute_table): Add function_return.
+	* config/i386/i386.h (machine_function): Add
+	function_return_type.
+	* config/i386/i386.md (simple_return_internal): Use
+	ix86_output_function_return.
+	(simple_return_internal_long): Likewise.
+	* config/i386/i386.opt (mfunction-return=): New option.
+	(indirect_branch): Mention -mfunction-return=.
+	* doc/extend.texi: Document function_return function attribute.
+	* doc/invoke.texi: Document -mfunction-return= option.
+
+gcc/testsuite/
+
+	Backport from mainline
+	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* gcc.target/i386/indirect-thunk-1.c (dg-options): Add
+	-mfunction-return=keep.
+	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-8.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+	* gcc.target/i386/ret-thunk-1.c: New test.
+	* gcc.target/i386/ret-thunk-10.c: Likewise.
+	* gcc.target/i386/ret-thunk-11.c: Likewise.
+	* gcc.target/i386/ret-thunk-12.c: Likewise.
+	* gcc.target/i386/ret-thunk-13.c: Likewise.
+	* gcc.target/i386/ret-thunk-14.c: Likewise.
+	* gcc.target/i386/ret-thunk-15.c: Likewise.
+	* gcc.target/i386/ret-thunk-16.c: Likewise.
+	* gcc.target/i386/ret-thunk-2.c: Likewise.
+	* gcc.target/i386/ret-thunk-3.c: Likewise.
+	* gcc.target/i386/ret-thunk-4.c: Likewise.
+	* gcc.target/i386/ret-thunk-5.c: Likewise.
+	* gcc.target/i386/ret-thunk-6.c: Likewise.
+	* gcc.target/i386/ret-thunk-7.c: Likewise.
+	* gcc.target/i386/ret-thunk-8.c: Likewise.
+	* gcc.target/i386/ret-thunk-9.c: Likewise.
+
+i386: Don't use ASM_OUTPUT_DEF for TARGET_MACHO
+
+ASM_OUTPUT_DEF isn't defined for TARGET_MACHO.  Use ASM_OUTPUT_LABEL to
+generate the __x86_return_thunk label, instead of the set directive.
+Update testcase to remove the __x86_return_thunk label check.  Since
+-fno-pic is ignored on Darwin, update testcases to sscan or "push"
+only on Linux.
+
+gcc/
+
+	Backport from mainline
+	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/83839
+	* config/i386/i386.c (output_indirect_thunk_function): Use
+	ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
+	for  __x86.return_thunk.
+
+gcc/testsuite/
+
+	Backport from mainline
+	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/83839
+	* gcc.target/i386/indirect-thunk-1.c: Scan for "push" only on
+	Linux.
+	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-register-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-register-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-register-4.c: Likewise.
+	* gcc.target/i386/ret-thunk-10.c: Likewise.
+	* gcc.target/i386/ret-thunk-11.c: Likewise.
+	* gcc.target/i386/ret-thunk-12.c: Likewise.
+	* gcc.target/i386/ret-thunk-13.c: Likewise.
+	* gcc.target/i386/ret-thunk-14.c: Likewise.
+	* gcc.target/i386/ret-thunk-15.c: Likewise.
+	* gcc.target/i386/ret-thunk-9.c: Don't check the
+	__x86_return_thunk label.
+	Scan for "push" only for Linux.
+---
+ gcc/config/i386/i386-protos.h                      |   1 +
+ gcc/config/i386/i386.c                             | 152 +++++++++++++++++++--
+ gcc/config/i386/i386.h                             |   3 +
+ gcc/config/i386/i386.md                            |   9 +-
+ gcc/config/i386/i386.opt                           |   6 +-
+ gcc/doc/extend.texi                                |   9 ++
+ gcc/doc/invoke.texi                                |  14 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-1.c   |   4 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-2.c   |   4 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-3.c   |   4 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-4.c   |   4 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-5.c   |   2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-6.c   |   2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-7.c   |   4 +-
+ .../gcc.target/i386/indirect-thunk-attr-1.c        |   4 +-
+ .../gcc.target/i386/indirect-thunk-attr-2.c        |   4 +-
+ .../gcc.target/i386/indirect-thunk-attr-3.c        |   4 +-
+ .../gcc.target/i386/indirect-thunk-attr-4.c        |   4 +-
+ .../gcc.target/i386/indirect-thunk-attr-5.c        |   4 +-
+ .../gcc.target/i386/indirect-thunk-attr-6.c        |   4 +-
+ .../gcc.target/i386/indirect-thunk-attr-7.c        |   4 +-
+ .../gcc.target/i386/indirect-thunk-attr-8.c        |   2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-1.c         |   4 +-
+ .../gcc.target/i386/indirect-thunk-bnd-2.c         |   4 +-
+ .../gcc.target/i386/indirect-thunk-bnd-3.c         |   2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-4.c         |   2 +-
+ .../gcc.target/i386/indirect-thunk-extern-1.c      |   4 +-
+ .../gcc.target/i386/indirect-thunk-extern-2.c      |   4 +-
+ .../gcc.target/i386/indirect-thunk-extern-3.c      |   4 +-
+ .../gcc.target/i386/indirect-thunk-extern-4.c      |   4 +-
+ .../gcc.target/i386/indirect-thunk-extern-5.c      |   2 +-
+ .../gcc.target/i386/indirect-thunk-extern-6.c      |   2 +-
+ .../gcc.target/i386/indirect-thunk-extern-7.c      |   4 +-
+ .../gcc.target/i386/indirect-thunk-inline-1.c      |   4 +-
+ .../gcc.target/i386/indirect-thunk-inline-2.c      |   4 +-
+ .../gcc.target/i386/indirect-thunk-inline-3.c      |   4 +-
+ .../gcc.target/i386/indirect-thunk-inline-4.c      |   4 +-
+ .../gcc.target/i386/indirect-thunk-inline-5.c      |   2 +-
+ .../gcc.target/i386/indirect-thunk-inline-6.c      |   2 +-
+ .../gcc.target/i386/indirect-thunk-inline-7.c      |   4 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-1.c        |  13 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-10.c       |  23 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-11.c       |  23 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-12.c       |  22 +++
+ gcc/testsuite/gcc.target/i386/ret-thunk-13.c       |  22 +++
+ gcc/testsuite/gcc.target/i386/ret-thunk-14.c       |  22 +++
+ gcc/testsuite/gcc.target/i386/ret-thunk-15.c       |  22 +++
+ gcc/testsuite/gcc.target/i386/ret-thunk-16.c       |  18 +++
+ gcc/testsuite/gcc.target/i386/ret-thunk-2.c        |  13 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-3.c        |  12 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-4.c        |  12 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-5.c        |  15 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-6.c        |  14 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-7.c        |  13 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-8.c        |  14 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-9.c        |  24 ++++
+ 56 files changed, 516 insertions(+), 74 deletions(-)
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-16.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-5.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-6.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-7.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-8.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+
+diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h
+index eca4cbf0776..620d70ef9f6 100644
+--- a/gcc/config/i386/i386-protos.h
++++ b/gcc/config/i386/i386-protos.h
+@@ -312,6 +312,7 @@ extern enum attr_cpu ix86_schedule;
+ 
+ extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op);
+ extern const char * ix86_output_indirect_jmp (rtx call_op, bool ret_p);
++extern const char * ix86_output_function_return (bool long_p);
+ extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load,
+ 						enum machine_mode mode);
+ 
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 0b9fc4d3026..34e26a3a3c7 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -6390,6 +6390,31 @@ ix86_set_indirect_branch_type (tree fndecl)
+       else
+ 	cfun->machine->indirect_branch_type = ix86_indirect_branch;
+     }
++
++  if (cfun->machine->function_return_type == indirect_branch_unset)
++    {
++      tree attr = lookup_attribute ("function_return",
++				    DECL_ATTRIBUTES (fndecl));
++      if (attr != NULL)
++	{
++	  tree args = TREE_VALUE (attr);
++	  if (args == NULL)
++	    gcc_unreachable ();
++	  tree cst = TREE_VALUE (args);
++	  if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0)
++	    cfun->machine->function_return_type = indirect_branch_keep;
++	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0)
++	    cfun->machine->function_return_type = indirect_branch_thunk;
++	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0)
++	    cfun->machine->function_return_type = indirect_branch_thunk_inline;
++	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0)
++	    cfun->machine->function_return_type = indirect_branch_thunk_extern;
++	  else
++	    gcc_unreachable ();
++	}
++      else
++	cfun->machine->function_return_type = ix86_function_return;
++    }
+ }
+ 
+ /* Establish appropriate back-end context for processing the function
+@@ -11036,8 +11061,12 @@ static int indirect_thunks_bnd_used;
+ /* Fills in the label name that should be used for the indirect thunk.  */
+ 
+ static void
+-indirect_thunk_name (char name[32], int regno, bool need_bnd_p)
++indirect_thunk_name (char name[32], int regno, bool need_bnd_p,
++		     bool ret_p)
+ {
++  if (regno >= 0 && ret_p)
++    gcc_unreachable ();
++
+   if (USE_HIDDEN_LINKONCE)
+     {
+       const char *bnd = need_bnd_p ? "_bnd" : "";
+@@ -11052,7 +11081,10 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p)
+ 		   bnd, reg_prefix, reg_names[regno]);
+ 	}
+       else
+-	sprintf (name, "__x86_indirect_thunk%s", bnd);
++	{
++	  const char *ret = ret_p ? "return" : "indirect";
++	  sprintf (name, "__x86_%s_thunk%s", ret, bnd);
++	}
+     }
+   else
+     {
+@@ -11065,10 +11097,20 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p)
+ 	}
+       else
+ 	{
+-	  if (need_bnd_p)
+-	    ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0);
++	  if (ret_p)
++	    {
++	      if (need_bnd_p)
++		ASM_GENERATE_INTERNAL_LABEL (name, "LRTB", 0);
++	      else
++		ASM_GENERATE_INTERNAL_LABEL (name, "LRT", 0);
++	    }
+ 	  else
+-	    ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0);
++	    {
++	      if (need_bnd_p)
++		ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0);
++	      else
++		ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0);
++	    }
+ 	}
+     }
+ }
+@@ -11163,7 +11205,7 @@ output_indirect_thunk_function (bool need_bnd_p, int regno)
+   tree decl;
+ 
+   /* Create __x86_indirect_thunk/__x86_indirect_thunk_bnd.  */
+-  indirect_thunk_name (name, regno, need_bnd_p);
++  indirect_thunk_name (name, regno, need_bnd_p, false);
+   decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL,
+ 		     get_identifier (name),
+ 		     build_function_type_list (void_type_node, NULL_TREE));
+@@ -11206,6 +11248,36 @@ output_indirect_thunk_function (bool need_bnd_p, int regno)
+ 	ASM_OUTPUT_LABEL (asm_out_file, name);
+       }
+ 
++  if (regno < 0)
++    {
++      /* Create alias for __x86.return_thunk/__x86.return_thunk_bnd.  */
++      char alias[32];
++
++      indirect_thunk_name (alias, regno, need_bnd_p, true);
++#if TARGET_MACHO
++      if (TARGET_MACHO)
++	{
++	  fputs ("\t.weak_definition\t", asm_out_file);
++	  assemble_name (asm_out_file, alias);
++	  fputs ("\n\t.private_extern\t", asm_out_file);
++	  assemble_name (asm_out_file, alias);
++	  putc ('\n', asm_out_file);
++	  ASM_OUTPUT_LABEL (asm_out_file, alias);
++	}
++#else
++      ASM_OUTPUT_DEF (asm_out_file, alias, name);
++      if (USE_HIDDEN_LINKONCE)
++	{
++	  fputs ("\t.globl\t", asm_out_file);
++	  assemble_name (asm_out_file, alias);
++	  putc ('\n', asm_out_file);
++	  fputs ("\t.hidden\t", asm_out_file);
++	  assemble_name (asm_out_file, alias);
++	  putc ('\n', asm_out_file);
++	}
++#endif
++    }
++
+   DECL_INITIAL (decl) = make_node (BLOCK);
+   current_function_decl = decl;
+   allocate_struct_function (decl, false);
+@@ -27687,7 +27759,7 @@ ix86_output_indirect_branch_via_reg (rtx call_op, bool sibcall_p)
+ 	  else
+ 	    indirect_thunks_used |= 1 << i;
+ 	}
+-      indirect_thunk_name (thunk_name_buf, regno, need_bnd_p);
++      indirect_thunk_name (thunk_name_buf, regno, need_bnd_p, false);
+       thunk_name = thunk_name_buf;
+     }
+   else
+@@ -27796,7 +27868,7 @@ ix86_output_indirect_branch_via_push (rtx call_op, const char *xasm,
+ 	  else
+ 	    indirect_thunk_needed = true;
+ 	}
+-      indirect_thunk_name (thunk_name_buf, regno, need_bnd_p);
++      indirect_thunk_name (thunk_name_buf, regno, need_bnd_p, false);
+       thunk_name = thunk_name_buf;
+     }
+   else
+@@ -27931,6 +28003,46 @@ ix86_output_indirect_jmp (rtx call_op, bool ret_p)
+     return "%!jmp\t%A0";
+ }
+ 
++/* Output function return.  CALL_OP is the jump target.  Add a REP
++   prefix to RET if LONG_P is true and function return is kept.  */
++
++const char *
++ix86_output_function_return (bool long_p)
++{
++  if (cfun->machine->function_return_type != indirect_branch_keep)
++    {
++      char thunk_name[32];
++      bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
++
++      if (cfun->machine->function_return_type
++	  != indirect_branch_thunk_inline)
++	{
++	  bool need_thunk = (cfun->machine->function_return_type
++			     == indirect_branch_thunk);
++	  indirect_thunk_name (thunk_name, -1, need_bnd_p, true);
++	  if (need_bnd_p)
++	    {
++	      indirect_thunk_bnd_needed |= need_thunk;
++	      fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++	    }
++	  else
++	    {
++	      indirect_thunk_needed |= need_thunk;
++	      fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++	    }
++	}
++      else
++	output_indirect_thunk (need_bnd_p, -1);
++
++      return "";
++    }
++
++  if (!long_p || ix86_bnd_prefixed_insn_p (current_output_insn))
++    return "%!ret";
++
++  return "rep%; ret";
++}
++
+ /* Output the assembly for a call instruction.  */
+ 
+ const char *
+@@ -45461,6 +45573,28 @@ ix86_handle_fndecl_attribute (tree *node, tree name, tree args, int,
+ 	}
+     }
+ 
++  if (is_attribute_p ("function_return", name))
++    {
++      tree cst = TREE_VALUE (args);
++      if (TREE_CODE (cst) != STRING_CST)
++	{
++	  warning (OPT_Wattributes,
++		   "%qE attribute requires a string constant argument",
++		   name);
++	  *no_add_attrs = true;
++	}
++      else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0
++	       && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0
++	       && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0
++	       && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0)
++	{
++	  warning (OPT_Wattributes,
++		   "argument to %qE attribute is not "
++		   "(keep|thunk|thunk-inline|thunk-extern)", name);
++	  *no_add_attrs = true;
++	}
++    }
++
+   return NULL_TREE;
+ }
+ 
+@@ -49690,6 +49824,8 @@ static const struct attribute_spec ix86_attribute_table[] =
+     ix86_handle_callee_pop_aggregate_return, true },
+   { "indirect_branch", 1, 1, true, false, false,
+     ix86_handle_fndecl_attribute, false },
++  { "function_return", 1, 1, true, false, false,
++    ix86_handle_fndecl_attribute, false },
+ 
+   /* End element.  */
+   { NULL,        0, 0, false, false, false, NULL, false }
+diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
+index 9dccdb0351e..b34bc117c34 100644
+--- a/gcc/config/i386/i386.h
++++ b/gcc/config/i386/i386.h
+@@ -2579,6 +2579,9 @@ struct GTY(()) machine_function {
+      "indirect_jump" or "tablejump".  */
+   BOOL_BITFIELD has_local_indirect_jump : 1;
+ 
++  /* How to generate function return.  */
++  ENUM_BITFIELD(indirect_branch) function_return_type : 3;
++
+   /* If true, there is register available for argument passing.  This
+      is used only in ix86_function_ok_for_sibcall by 32-bit to determine
+      if there is scratch register available for indirect sibcall.  In
+diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
+index 153e1622b2d..2da671e9f2d 100644
+--- a/gcc/config/i386/i386.md
++++ b/gcc/config/i386/i386.md
+@@ -12489,7 +12489,7 @@
+ (define_insn "simple_return_internal"
+   [(simple_return)]
+   "reload_completed"
+-  "%!ret"
++  "* return ix86_output_function_return (false);"
+   [(set_attr "length" "1")
+    (set_attr "atom_unit" "jeu")
+    (set_attr "length_immediate" "0")
+@@ -12503,12 +12503,7 @@
+   [(simple_return)
+    (unspec [(const_int 0)] UNSPEC_REP)]
+   "reload_completed"
+-{
+-  if (ix86_bnd_prefixed_insn_p (insn))
+-    return "%!ret";
+-
+-  return "rep%; ret";
+-}
++  "* return ix86_output_function_return (true);"
+   [(set_attr "length" "2")
+    (set_attr "atom_unit" "jeu")
+    (set_attr "length_immediate" "0")
+diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
+index 5ffa3349a30..ad5916fb643 100644
+--- a/gcc/config/i386/i386.opt
++++ b/gcc/config/i386/i386.opt
+@@ -902,9 +902,13 @@ mindirect-branch=
+ Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch) Init(indirect_branch_keep)
+ Convert indirect call and jump to call and return thunks.
+ 
++mfunction-return=
++Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_function_return) Init(indirect_branch_keep)
++Convert function return to call and return thunk.
++
+ Enum
+ Name(indirect_branch) Type(enum indirect_branch)
+-Known indirect branch choices (for use with the -mindirect-branch= option):
++Known indirect branch choices (for use with the -mindirect-branch=/-mfunction-return= options):
+ 
+ EnumValue
+ Enum(indirect_branch) String(keep) Value(indirect_branch_keep)
+diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
+index 8668dae9e99..2cb6bd1ef3e 100644
+--- a/gcc/doc/extend.texi
++++ b/gcc/doc/extend.texi
+@@ -5429,6 +5429,15 @@ call and jump to call and return thunk.  @samp{thunk-inline} converts
+ indirect call and jump to inlined call and return thunk.
+ @samp{thunk-extern} converts indirect call and jump to external call
+ and return thunk provided in a separate object file.
++
++@item function_return("@var{choice}")
++@cindex @code{function_return} function attribute, x86
++On x86 targets, the @code{function_return} attribute causes the compiler
++to convert function return with @var{choice}.  @samp{keep} keeps function
++return unmodified.  @samp{thunk} converts function return to call and
++return thunk.  @samp{thunk-inline} converts function return to inlined
++call and return thunk.  @samp{thunk-extern} converts function return to
++external call and return thunk provided in a separate object file.
+ @end table
+ 
+ On the x86, the inliner does not inline a
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index 6f60339a56a..337a761015a 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -1169,7 +1169,8 @@ See RS/6000 and PowerPC Options.
+ -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv @gol
+ -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol
+ -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol
+--mmitigate-rop -mindirect-branch=@var{choice}}
++-mmitigate-rop -mindirect-branch=@var{choice} @gol
++-mfunction-return=@var{choice}}
+ 
+ @emph{x86 Windows Options}
+ @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol
+@@ -24241,6 +24242,17 @@ to external call and return thunk provided in a separate object file.
+ You can control this behavior for a specific function by using the
+ function attribute @code{indirect_branch}.  @xref{Function Attributes}.
+ 
++@item -mfunction-return=@var{choice}
++@opindex -mfunction-return
++Convert function return with @var{choice}.  The default is @samp{keep},
++which keeps function return unmodified.  @samp{thunk} converts function
++return to call and return thunk.  @samp{thunk-inline} converts function
++return to inlined call and return thunk.  @samp{thunk-extern} converts
++function return to external call and return thunk provided in a separate
++object file.  You can control this behavior for a specific function by
++using the function attribute @code{function_return}.
++@xref{Function Attributes}.
++
+ @end table
+ 
+ These @samp{-m} switches are supported in addition to the above
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+index d983e1c3e26..e365ef5698a 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+   dispatch(offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+index 58f09b42d8a..05a51ad9157 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+   dispatch[offset](offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+index f20d35c19b6..3c0d4c39f0b 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+index 0eff8fb658a..14d4ef6dd98 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+index a25b20dd808..b4836c38d6c 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+index cff114a6c29..1f06bd1af74 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+index afdb6007986..bc6b47a636e 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+@@ -35,7 +35,7 @@ bar (int i)
+     }
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+index d64d978b699..2257be3affa 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -14,7 +14,7 @@ male_indirect_jump (long offset)
+   dispatch(offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+index 93067454d3d..e9cfdc5879e 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+   dispatch[offset](offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+index 97744d65729..f938db050f7 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -14,7 +14,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+index bfce3ea5cb2..4e58599692a 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -13,7 +13,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+index 0833606046b..b8d50249d8b 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -14,7 +14,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+index 2eba0fbd9b2..455adabfe0e 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -13,7 +13,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+index f58427eae11..4595b841ec0 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+@@ -36,7 +36,7 @@ bar (int i)
+     }
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
+index 564ed39547c..d730d31bda1 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+index 50fbee20a5a..5e3e118e9bd 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { ! x32 } } } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
+ 
+ void (*dispatch) (char *);
+ char buf[10];
+@@ -10,7 +10,7 @@ foo (void)
+   dispatch (buf);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
+ /* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+index 2976e67adce..2801aa4192e 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { ! x32 } } } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
+ 
+ void (*dispatch) (char *);
+ char buf[10];
+@@ -11,7 +11,7 @@ foo (void)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
+ /* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
+ /* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+index da4bc98ef23..70b4fb36eea 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
+ 
+ void bar (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+index c64d12ef989..3baf03ee77c 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
+ 
+ void bar (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+index 49f27b49465..edeb264218c 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+   dispatch(offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+index a1e3eb6fc74..1d00413a76a 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+   dispatch[offset](offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+index 395634e7e5c..06ebf1c9063 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+index fd3f63379a1..1c8f9446636 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+index ba2f92b6f34..21740ac5b7f 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+index 0c5a2d472c6..a77c1f470b8 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+index 665252327aa..86e9fd1f1e4 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+@@ -35,7 +35,7 @@ bar (int i)
+     }
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+index 68c0ff713b3..3ecde878867 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+   dispatch(offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+index e2da1fcb683..df32a19a2b5 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+   dispatch[offset](offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+index 244fec708d6..9540996de01 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+index 107ebe32f54..f3db6e2441f 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+index 17b04ef2229..0f687c3b027 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+index d9eb11285aa..b27c6fc96a2 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+index d02b1dcb1b9..764a375fc37 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+@@ -35,7 +35,7 @@ bar (int i)
+     }
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-1.c b/gcc/testsuite/gcc.target/i386/ret-thunk-1.c
+new file mode 100644
+index 00000000000..7223f67ba5e
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-1.c
+@@ -0,0 +1,13 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk" } */
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+new file mode 100644
+index 00000000000..3a6727b5c54
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+@@ -0,0 +1,23 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */
++
++extern void (*bar) (void);
++
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-times {\tpause} 2 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } }  } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } }  } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } }  } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } }  } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+new file mode 100644
+index 00000000000..b8f68188313
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+@@ -0,0 +1,23 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */
++
++extern void (*bar) (void);
++
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } }  } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } }  } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } }  } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+new file mode 100644
+index 00000000000..01b0a02f80b
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++
++extern void (*bar) (void);
++
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } }  } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } }  } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } }  } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+new file mode 100644
+index 00000000000..4b497b5f8af
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++
++extern void (*bar) (void);
++extern int foo (void) __attribute__ ((function_return("thunk")));
++
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-times {\tpause} 2 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 3 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 3 } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } }  } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+new file mode 100644
+index 00000000000..4ae4c44a3fd
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++
++extern void (*bar) (void);
++
++__attribute__ ((function_return("thunk-inline")))
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } }  } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+new file mode 100644
+index 00000000000..5b5bc765a7e
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */
++
++extern void (*bar) (void);
++
++__attribute__ ((function_return("thunk-extern"), indirect_branch("thunk")))
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-16.c b/gcc/testsuite/gcc.target/i386/ret-thunk-16.c
+new file mode 100644
+index 00000000000..a16cad16aaa
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-16.c
+@@ -0,0 +1,18 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk-extern -fno-pic" } */
++
++extern void (*bar) (void);
++
++__attribute__ ((function_return("keep"), indirect_branch("keep")))
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-2.c b/gcc/testsuite/gcc.target/i386/ret-thunk-2.c
+new file mode 100644
+index 00000000000..c6659e3ad09
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-2.c
+@@ -0,0 +1,13 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-3.c b/gcc/testsuite/gcc.target/i386/ret-thunk-3.c
+new file mode 100644
+index 00000000000..0f7f388f459
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-3.c
+@@ -0,0 +1,12 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-extern" } */
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-4.c b/gcc/testsuite/gcc.target/i386/ret-thunk-4.c
+new file mode 100644
+index 00000000000..9ae37e835a0
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-4.c
+@@ -0,0 +1,12 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep" } */
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-5.c b/gcc/testsuite/gcc.target/i386/ret-thunk-5.c
+new file mode 100644
+index 00000000000..4bd0d2a27bc
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-5.c
+@@ -0,0 +1,15 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep" } */
++
++extern void foo (void) __attribute__ ((function_return("thunk")));
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-6.c b/gcc/testsuite/gcc.target/i386/ret-thunk-6.c
+new file mode 100644
+index 00000000000..053841f6f7d
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-6.c
+@@ -0,0 +1,14 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep" } */
++
++__attribute__ ((function_return("thunk-inline")))
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-7.c b/gcc/testsuite/gcc.target/i386/ret-thunk-7.c
+new file mode 100644
+index 00000000000..262e6780112
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-7.c
+@@ -0,0 +1,13 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep" } */
++
++__attribute__ ((function_return("thunk-extern")))
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-8.c b/gcc/testsuite/gcc.target/i386/ret-thunk-8.c
+new file mode 100644
+index 00000000000..c1658e96673
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-8.c
+@@ -0,0 +1,14 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */
++
++extern void foo (void) __attribute__ ((function_return("keep")));
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+new file mode 100644
+index 00000000000..fa24a1f7365
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+@@ -0,0 +1,24 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */
++
++extern void (*bar) (void);
++
++int
++foo (void)
++{
++  bar ();
++  return 0;
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk:" } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times {\tpause} 2 { target { x32 } } } } */
++/* { dg-final { scan-assembler-times {\tlfence} 2 { target { x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+-- 
+2.16.3
+
diff --git a/community/gcc6/0006-x86-Add-mindirect-branch-register.patch b/community/gcc6/0006-x86-Add-mindirect-branch-register.patch
new file mode 100644
index 0000000000..111e6e43d4
--- /dev/null
+++ b/community/gcc6/0006-x86-Add-mindirect-branch-register.patch
@@ -0,0 +1,941 @@
+From 61bb7f0e152ce5be700a44007d036ea0de4b254d Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Sat, 6 Jan 2018 22:29:56 -0800
+Subject: [PATCH 06/13] x86: Add -mindirect-branch-register
+
+Add -mindirect-branch-register to force indirect branch via register.
+This is implemented by disabling patterns of indirect branch via memory,
+similar to TARGET_X32.
+
+-mindirect-branch= and -mfunction-return= tests are updated with
+-mno-indirect-branch-register to avoid false test failures when
+-mindirect-branch-register is added to RUNTESTFLAGS for "make check".
+
+gcc/
+
+	Backport from mainline
+	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/constraints.md (Bs): Disallow memory operand for
+	-mindirect-branch-register.
+	(Bw): Likewise.
+	* config/i386/predicates.md (indirect_branch_operand): Likewise.
+	(GOT_memory_operand): Likewise.
+	(call_insn_operand): Likewise.
+	(sibcall_insn_operand): Likewise.
+	(GOT32_symbol_operand): Likewise.
+	* config/i386/i386.md (indirect_jump): Call convert_memory_address
+	for -mindirect-branch-register.
+	(tablejump): Likewise.
+	(*sibcall_memory): Likewise.
+	(*sibcall_value_memory): Likewise.
+	Disallow peepholes of indirect call and jump via memory for
+	-mindirect-branch-register.
+	(*call_pop): Replace m with Bw.
+	(*call_value_pop): Likewise.
+	(*sibcall_pop_memory): Replace m with Bs.
+	* config/i386/i386.opt (mindirect-branch-register): New option.
+	* doc/invoke.texi: Document -mindirect-branch-register option.
+
+gcc/testsuite/
+
+	Backport from mainline
+	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* gcc.target/i386/indirect-thunk-1.c (dg-options): Add
+	-mno-indirect-branch-register.
+	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+	* gcc.target/i386/ret-thunk-10.c: Likewise.
+	* gcc.target/i386/ret-thunk-11.c: Likewise.
+	* gcc.target/i386/ret-thunk-12.c: Likewise.
+	* gcc.target/i386/ret-thunk-13.c: Likewise.
+	* gcc.target/i386/ret-thunk-14.c: Likewise.
+	* gcc.target/i386/ret-thunk-15.c: Likewise.
+	* gcc.target/i386/ret-thunk-9.c: Likewise.
+	* gcc.target/i386/indirect-thunk-register-1.c: New test.
+	* gcc.target/i386/indirect-thunk-register-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-register-3.c: Likewise.
+
+i386: Rename to ix86_indirect_branch_register
+
+Rename the variable for -mindirect-branch-register to
+ix86_indirect_branch_register to match the command-line option name.
+
+	Backport from mainline
+	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/constraints.md (Bs): Replace
+	ix86_indirect_branch_thunk_register with
+	ix86_indirect_branch_register.
+	(Bw): Likewise.
+	* config/i386/i386.md (indirect_jump): Likewise.
+	(tablejump): Likewise.
+	(*sibcall_memory): Likewise.
+	(*sibcall_value_memory): Likewise.
+	Peepholes of indirect call and jump via memory: Likewise.
+	* config/i386/i386.opt: Likewise.
+	* config/i386/predicates.md (indirect_branch_operand): Likewise.
+	(GOT_memory_operand): Likewise.
+	(call_insn_operand): Likewise.
+	(sibcall_insn_operand): Likewise.
+	(GOT32_symbol_operand): Likewise.
+
+x86: Rewrite ix86_indirect_branch_register logic
+
+Rewrite ix86_indirect_branch_register logic with
+
+(and (not (match_test "ix86_indirect_branch_register"))
+     (original condition before r256662))
+
+	Backport from mainline
+	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/predicates.md (constant_call_address_operand):
+	Rewrite ix86_indirect_branch_register logic.
+	(sibcall_insn_operand): Likewise.
+
+Don't check ix86_indirect_branch_register for GOT operand
+
+Since GOT_memory_operand and GOT32_symbol_operand are simple pattern
+matches, don't check ix86_indirect_branch_register here.  If needed,
+-mindirect-branch= will convert indirect branch via GOT slot to a call
+and return thunk.
+
+	Backport from mainline
+	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/constraints.md (Bs): Update
+	ix86_indirect_branch_register check.  Don't check
+	ix86_indirect_branch_register with GOT_memory_operand.
+	(Bw): Likewise.
+	* config/i386/predicates.md (GOT_memory_operand): Don't check
+	ix86_indirect_branch_register here.
+	(GOT32_symbol_operand): Likewise.
+
+i386: Rewrite indirect_branch_operand logic
+
+	Backport from mainline
+	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/predicates.md (indirect_branch_operand): Rewrite
+	ix86_indirect_branch_register logic.
+---
+ gcc/config/i386/constraints.md                     |  6 ++--
+ gcc/config/i386/i386.md                            | 34 ++++++++++++++--------
+ gcc/config/i386/i386.opt                           |  4 +++
+ gcc/config/i386/predicates.md                      | 21 +++++++------
+ gcc/doc/invoke.texi                                |  6 +++-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-1.c   |  2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-2.c   |  2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-3.c   |  2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-4.c   |  2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-5.c   |  2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-6.c   |  2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-7.c   |  2 +-
+ .../gcc.target/i386/indirect-thunk-attr-1.c        |  2 +-
+ .../gcc.target/i386/indirect-thunk-attr-2.c        |  2 +-
+ .../gcc.target/i386/indirect-thunk-attr-3.c        |  2 +-
+ .../gcc.target/i386/indirect-thunk-attr-4.c        |  2 +-
+ .../gcc.target/i386/indirect-thunk-attr-5.c        |  2 +-
+ .../gcc.target/i386/indirect-thunk-attr-6.c        |  2 +-
+ .../gcc.target/i386/indirect-thunk-attr-7.c        |  2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-1.c         |  2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-2.c         |  2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-3.c         |  2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-4.c         |  2 +-
+ .../gcc.target/i386/indirect-thunk-extern-1.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-extern-2.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-extern-3.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-extern-4.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-extern-5.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-extern-6.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-extern-7.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-1.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-2.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-3.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-4.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-5.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-6.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-7.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-register-1.c    | 22 ++++++++++++++
+ .../gcc.target/i386/indirect-thunk-register-2.c    | 20 +++++++++++++
+ .../gcc.target/i386/indirect-thunk-register-3.c    | 19 ++++++++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-10.c       |  2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-11.c       |  2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-12.c       |  2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-13.c       |  2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-14.c       |  2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-15.c       |  2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-9.c        |  2 +-
+ 47 files changed, 147 insertions(+), 63 deletions(-)
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c
+
+diff --git a/gcc/config/i386/constraints.md b/gcc/config/i386/constraints.md
+index 1a4c701ad13..9204c8e8487 100644
+--- a/gcc/config/i386/constraints.md
++++ b/gcc/config/i386/constraints.md
+@@ -172,14 +172,16 @@
+ 
+ (define_constraint "Bs"
+   "@internal Sibcall memory operand."
+-  (ior (and (not (match_test "TARGET_X32"))
++  (ior (and (not (match_test "ix86_indirect_branch_register"))
++	    (not (match_test "TARGET_X32"))
+ 	    (match_operand 0 "sibcall_memory_operand"))
+        (and (match_test "TARGET_X32 && Pmode == DImode")
+ 	    (match_operand 0 "GOT_memory_operand"))))
+ 
+ (define_constraint "Bw"
+   "@internal Call memory operand."
+-  (ior (and (not (match_test "TARGET_X32"))
++  (ior (and (not (match_test "ix86_indirect_branch_register"))
++	    (not (match_test "TARGET_X32"))
+ 	    (match_operand 0 "memory_operand"))
+        (and (match_test "TARGET_X32 && Pmode == DImode")
+ 	    (match_operand 0 "GOT_memory_operand"))))
+diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
+index 2da671e9f2d..05a88fff356 100644
+--- a/gcc/config/i386/i386.md
++++ b/gcc/config/i386/i386.md
+@@ -11805,7 +11805,7 @@
+   [(set (pc) (match_operand 0 "indirect_branch_operand"))]
+   ""
+ {
+-  if (TARGET_X32)
++  if (TARGET_X32 || ix86_indirect_branch_register)
+     operands[0] = convert_memory_address (word_mode, operands[0]);
+   cfun->machine->has_local_indirect_jump = true;
+ })
+@@ -11859,7 +11859,7 @@
+ 					 OPTAB_DIRECT);
+     }
+ 
+-  if (TARGET_X32)
++  if (TARGET_X32 || ix86_indirect_branch_register)
+     operands[0] = convert_memory_address (word_mode, operands[0]);
+   cfun->machine->has_local_indirect_jump = true;
+ })
+@@ -12048,7 +12048,7 @@
+   [(call (mem:QI (match_operand:W 0 "memory_operand" "m"))
+ 	 (match_operand 1))
+    (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
+-  "!TARGET_X32"
++  "!TARGET_X32 && !ix86_indirect_branch_register"
+   "* return ix86_output_call_insn (insn, operands[0]);"
+   [(set_attr "type" "call")])
+ 
+@@ -12057,7 +12057,9 @@
+ 	(match_operand:W 1 "memory_operand"))
+    (call (mem:QI (match_dup 0))
+ 	 (match_operand 3))]
+-  "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1))
++  "!TARGET_X32
++   && !ix86_indirect_branch_register
++   && SIBLING_CALL_P (peep2_next_insn (1))
+    && !reg_mentioned_p (operands[0],
+ 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
+   [(parallel [(call (mem:QI (match_dup 1))
+@@ -12070,7 +12072,9 @@
+    (unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
+    (call (mem:QI (match_dup 0))
+ 	 (match_operand 3))]
+-  "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2))
++  "!TARGET_X32
++   && !ix86_indirect_branch_register
++   && SIBLING_CALL_P (peep2_next_insn (2))
+    && !reg_mentioned_p (operands[0],
+ 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
+   [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
+@@ -12092,7 +12096,7 @@
+ })
+ 
+ (define_insn "*call_pop"
+-  [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lmBz"))
++  [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lBwBz"))
+ 	 (match_operand 1))
+    (set (reg:SI SP_REG)
+ 	(plus:SI (reg:SI SP_REG)
+@@ -12112,7 +12116,7 @@
+   [(set_attr "type" "call")])
+ 
+ (define_insn "*sibcall_pop_memory"
+-  [(call (mem:QI (match_operand:SI 0 "memory_operand" "m"))
++  [(call (mem:QI (match_operand:SI 0 "memory_operand" "Bs"))
+ 	 (match_operand 1))
+    (set (reg:SI SP_REG)
+ 	(plus:SI (reg:SI SP_REG)
+@@ -12166,7 +12170,9 @@
+   [(set (match_operand:W 0 "register_operand")
+         (match_operand:W 1 "memory_operand"))
+    (set (pc) (match_dup 0))]
+-  "!TARGET_X32 && peep2_reg_dead_p (2, operands[0])"
++  "!TARGET_X32
++   && !ix86_indirect_branch_register
++   && peep2_reg_dead_p (2, operands[0])"
+   [(set (pc) (match_dup 1))])
+ 
+ ;; Call subroutine, returning value in operand 0
+@@ -12244,7 +12250,7 @@
+  	(call (mem:QI (match_operand:W 1 "memory_operand" "m"))
+ 	      (match_operand 2)))
+    (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
+-  "!TARGET_X32"
++  "!TARGET_X32 && !ix86_indirect_branch_register"
+   "* return ix86_output_call_insn (insn, operands[1]);"
+   [(set_attr "type" "callv")])
+ 
+@@ -12254,7 +12260,9 @@
+    (set (match_operand 2)
+    (call (mem:QI (match_dup 0))
+ 		 (match_operand 3)))]
+-  "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1))
++  "!TARGET_X32
++   && !ix86_indirect_branch_register
++   && SIBLING_CALL_P (peep2_next_insn (1))
+    && !reg_mentioned_p (operands[0],
+ 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
+   [(parallel [(set (match_dup 2)
+@@ -12269,7 +12277,9 @@
+    (set (match_operand 2)
+ 	(call (mem:QI (match_dup 0))
+ 	      (match_operand 3)))]
+-  "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2))
++  "!TARGET_X32
++   && !ix86_indirect_branch_register
++   && SIBLING_CALL_P (peep2_next_insn (2))
+    && !reg_mentioned_p (operands[0],
+ 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
+   [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
+@@ -12294,7 +12304,7 @@
+ 
+ (define_insn "*call_value_pop"
+   [(set (match_operand 0)
+-	(call (mem:QI (match_operand:SI 1 "call_insn_operand" "lmBz"))
++	(call (mem:QI (match_operand:SI 1 "call_insn_operand" "lBwBz"))
+ 	      (match_operand 2)))
+    (set (reg:SI SP_REG)
+ 	(plus:SI (reg:SI SP_REG)
+diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
+index ad5916fb643..a97f84f68f2 100644
+--- a/gcc/config/i386/i386.opt
++++ b/gcc/config/i386/i386.opt
+@@ -921,3 +921,7 @@ Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline)
+ 
+ EnumValue
+ Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern)
++
++mindirect-branch-register
++Target Report Var(ix86_indirect_branch_register) Init(0)
++Force indirect call and jump via register.
+diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
+index 93dda7bb0e7..d1f0a7dbf61 100644
+--- a/gcc/config/i386/predicates.md
++++ b/gcc/config/i386/predicates.md
+@@ -593,7 +593,8 @@
+ ;; Test for a valid operand for indirect branch.
+ (define_predicate "indirect_branch_operand"
+   (ior (match_operand 0 "register_operand")
+-       (and (not (match_test "TARGET_X32"))
++       (and (not (match_test "ix86_indirect_branch_register"))
++	    (not (match_test "TARGET_X32"))
+ 	    (match_operand 0 "memory_operand"))))
+ 
+ ;; Return true if OP is a memory operands that can be used in sibcalls.
+@@ -636,20 +637,22 @@
+   (ior (match_test "constant_call_address_operand
+ 		     (op, mode == VOIDmode ? mode : Pmode)")
+        (match_operand 0 "call_register_no_elim_operand")
+-       (ior (and (not (match_test "TARGET_X32"))
+-		 (match_operand 0 "memory_operand"))
+-	    (and (match_test "TARGET_X32 && Pmode == DImode")
+-		 (match_operand 0 "GOT_memory_operand")))))
++       (and (not (match_test "ix86_indirect_branch_register"))
++	    (ior (and (not (match_test "TARGET_X32"))
++		      (match_operand 0 "memory_operand"))
++		 (and (match_test "TARGET_X32 && Pmode == DImode")
++		      (match_operand 0 "GOT_memory_operand"))))))
+ 
+ ;; Similarly, but for tail calls, in which we cannot allow memory references.
+ (define_special_predicate "sibcall_insn_operand"
+   (ior (match_test "constant_call_address_operand
+ 		     (op, mode == VOIDmode ? mode : Pmode)")
+        (match_operand 0 "register_no_elim_operand")
+-       (ior (and (not (match_test "TARGET_X32"))
+-		 (match_operand 0 "sibcall_memory_operand"))
+-	    (and (match_test "TARGET_X32 && Pmode == DImode")
+-		 (match_operand 0 "GOT_memory_operand")))))
++       (and (not (match_test "ix86_indirect_branch_register"))
++	    (ior (and (not (match_test "TARGET_X32"))
++		      (match_operand 0 "sibcall_memory_operand"))
++		 (and (match_test "TARGET_X32 && Pmode == DImode")
++		      (match_operand 0 "GOT_memory_operand"))))))
+ 
+ ;; Return true if OP is a 32-bit GOT symbol operand.
+ (define_predicate "GOT32_symbol_operand"
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index 337a761015a..94374661f2d 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -1170,7 +1170,7 @@ See RS/6000 and PowerPC Options.
+ -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol
+ -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol
+ -mmitigate-rop -mindirect-branch=@var{choice} @gol
+--mfunction-return=@var{choice}}
++-mfunction-return=@var{choice} -mindirect-branch-register}
+ 
+ @emph{x86 Windows Options}
+ @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol
+@@ -24253,6 +24253,10 @@ object file.  You can control this behavior for a specific function by
+ using the function attribute @code{function_return}.
+ @xref{Function Attributes}.
+ 
++@item -mindirect-branch-register
++@opindex -mindirect-branch-register
++Force indirect call and jump via register.
++
+ @end table
+ 
+ These @samp{-m} switches are supported in addition to the above
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+index e365ef5698a..60d09881a99 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+index 05a51ad9157..aac75163794 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+index 3c0d4c39f0b..9e24a385387 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+index 14d4ef6dd98..127b5d94523 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+index b4836c38d6c..fcaa18d10b7 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+index 1f06bd1af74..e4649283d10 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+index bc6b47a636e..17c2d0faf88 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+index 2257be3affa..9194ccf3cbc 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+index e9cfdc5879e..e51f261a612 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+index f938db050f7..4aeec1833cd 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+index 4e58599692a..ac0e5999f63 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+index b8d50249d8b..573cf1ef09e 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+index 455adabfe0e..b2b37fc6e2e 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+index 4595b841ec0..4a43e199931 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+index 5e3e118e9bd..ac84ab623fa 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { ! x32 } } } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
+ 
+ void (*dispatch) (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+index 2801aa4192e..ce655e8be1c 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { ! x32 } } } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
+ 
+ void (*dispatch) (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+index 70b4fb36eea..d34485a0010 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
+ 
+ void bar (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+index 3baf03ee77c..0e19830de4d 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
+ 
+ void bar (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+index edeb264218c..579441f250e 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+index 1d00413a76a..c92e6f2b02d 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+index 06ebf1c9063..d9964c25bbd 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+index 1c8f9446636..d4dca4dc5fe 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+index 21740ac5b7f..5c07e02df6a 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+index a77c1f470b8..3eb440693a0 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+index 86e9fd1f1e4..aece9383697 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+index 3ecde878867..3aba5e8c81f 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+index df32a19a2b5..0f0181d6672 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+index 9540996de01..2eef6f35a75 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+index f3db6e2441f..e825a10f14c 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+index 0f687c3b027..c6d77e10352 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+index b27c6fc96a2..6454827b780 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
+ 
+ extern void bar (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+index 764a375fc37..c67066cf197 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
+new file mode 100644
+index 00000000000..7d396a31953
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -mindirect-branch-register -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch"  } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk\n" } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk_bnd\n" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
+new file mode 100644
+index 00000000000..e7e616bb271
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -mindirect-branch-register -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch"  } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c
+new file mode 100644
+index 00000000000..5320e923be2
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c
+@@ -0,0 +1,19 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -mindirect-branch-register -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++  dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch"  } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
++/* { dg-final { scan-assembler-not {\t(pause|pause|nop)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+index 3a6727b5c54..e6fea84a4d9 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+index b8f68188313..e239ec4542f 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+index 01b0a02f80b..fa3181303c9 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+index 4b497b5f8af..fd5b41fdd3f 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ extern int foo (void) __attribute__ ((function_return("thunk")));
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+index 4ae4c44a3fd..d606373ead1 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+index 5b5bc765a7e..75e45e226b8 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+index fa24a1f7365..d1db41cc128 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+-- 
+2.16.3
+
diff --git a/community/gcc6/0007-x86-Add-V-register-operand-modifier.patch b/community/gcc6/0007-x86-Add-V-register-operand-modifier.patch
new file mode 100644
index 0000000000..f75b2133c8
--- /dev/null
+++ b/community/gcc6/0007-x86-Add-V-register-operand-modifier.patch
@@ -0,0 +1,134 @@
+From 92308185917678406afee3c165ea5e71b53b3cc1 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Sat, 6 Jan 2018 22:29:56 -0800
+Subject: [PATCH 07/13] x86: Add 'V' register operand modifier
+
+Add 'V', a special modifier which prints the name of the full integer
+register without '%'.  For
+
+extern void (*func_p) (void);
+
+void
+foo (void)
+{
+  asm ("call __x86_indirect_thunk_%V0" : : "a" (func_p));
+}
+
+it generates:
+
+foo:
+	movq	func_p(%rip), %rax
+	call	__x86_indirect_thunk_rax
+	ret
+
+gcc/
+
+	Backport from mainline
+	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/i386.c (print_reg): Print the name of the full
+	integer register without '%'.
+	(ix86_print_operand): Handle 'V'.
+	 * doc/extend.texi: Document 'V' modifier.
+
+gcc/testsuite/
+
+	Backport from mainline
+	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* gcc.target/i386/indirect-thunk-register-4.c: New test.
+---
+ gcc/config/i386/i386.c                                    | 13 ++++++++++++-
+ gcc/doc/extend.texi                                       |  3 +++
+ gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c | 13 +++++++++++++
+ 3 files changed, 28 insertions(+), 1 deletion(-)
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 34e26a3a3c7..eeca7e5e490 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -16869,6 +16869,7 @@ put_condition_code (enum rtx_code code, machine_mode mode, bool reverse,
+    If CODE is 'h', pretend the reg is the 'high' byte register.
+    If CODE is 'y', print "st(0)" instead of "st", if the reg is stack op.
+    If CODE is 'd', duplicate the operand for AVX instruction.
++   If CODE is 'V', print naked full integer register name without %.
+  */
+ 
+ void
+@@ -16879,7 +16880,7 @@ print_reg (rtx x, int code, FILE *file)
+   unsigned int regno;
+   bool duplicated;
+ 
+-  if (ASSEMBLER_DIALECT == ASM_ATT)
++  if (ASSEMBLER_DIALECT == ASM_ATT && code != 'V')
+     putc ('%', file);
+ 
+   if (x == pc_rtx)
+@@ -16922,6 +16923,14 @@ print_reg (rtx x, int code, FILE *file)
+ 	      && regno != FPSR_REG
+ 	      && regno != FPCR_REG);
+ 
++  if (code == 'V')
++    {
++      if (GENERAL_REGNO_P (regno))
++	msize = GET_MODE_SIZE (word_mode);
++      else
++	error ("'V' modifier on non-integer register");
++    }
++
+   duplicated = code == 'd' && TARGET_AVX;
+ 
+   switch (msize)
+@@ -17035,6 +17044,7 @@ print_reg (rtx x, int code, FILE *file)
+    & -- print some in-use local-dynamic symbol name.
+    H -- print a memory address offset by 8; used for sse high-parts
+    Y -- print condition for XOP pcom* instruction.
++   V -- print naked full integer register name without %.
+    + -- print a branch hint as 'cs' or 'ds' prefix
+    ; -- print a semicolon (after prefixes due to bug in older gas).
+    ~ -- print "i" if TARGET_AVX2, "f" otherwise.
+@@ -17259,6 +17269,7 @@ ix86_print_operand (FILE *file, rtx x, int code)
+ 	case 'X':
+ 	case 'P':
+ 	case 'p':
++	case 'V':
+ 	  break;
+ 
+ 	case 's':
+diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
+index 2cb6bd1ef3e..76ba1d4f913 100644
+--- a/gcc/doc/extend.texi
++++ b/gcc/doc/extend.texi
+@@ -8511,6 +8511,9 @@ The table below shows the list of supported modifiers and their effects.
+ @tab @code{2}
+ @end multitable
+ 
++@code{V} is a special modifier which prints the name of the full integer
++register without @code{%}.
++
+ @anchor{x86floatingpointasmoperands}
+ @subsubsection x86 Floating-Point @code{asm} Operands
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c
+new file mode 100644
+index 00000000000..f0cd9b75be8
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c
+@@ -0,0 +1,13 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=keep -fno-pic" } */
++
++extern void (*func_p) (void);
++
++void
++foo (void)
++{
++  asm("call __x86_indirect_thunk_%V0" : : "a" (func_p));
++}
++
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_eax" { target ia32 } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_rax" { target { ! ia32 } } } } */
+-- 
+2.16.3
+
diff --git a/community/gcc6/0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch b/community/gcc6/0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch
new file mode 100644
index 0000000000..73a58bf86e
--- /dev/null
+++ b/community/gcc6/0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch
@@ -0,0 +1,299 @@
+From 087b12213a5b4b8654c70320c671bb05c1b1b012 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Sat, 13 Jan 2018 18:01:54 -0800
+Subject: [PATCH 08/13] x86: Disallow -mindirect-branch=/-mfunction-return=
+ with -mcmodel=large
+
+Since the thunk function may not be reachable in large code model,
+-mcmodel=large is incompatible with -mindirect-branch=thunk,
+-mindirect-branch=thunk-extern, -mfunction-return=thunk and
+-mfunction-return=thunk-extern.  Issue an error when they are used with
+-mcmodel=large.
+
+gcc/
+
+	Backport from mainline
+	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
+	-mcmodel=large with -mindirect-branch=thunk,
+	-mindirect-branch=thunk-extern, -mfunction-return=thunk and
+	-mfunction-return=thunk-extern.
+	* doc/invoke.texi: Document -mcmodel=large is incompatible with
+	-mindirect-branch=thunk, -mindirect-branch=thunk-extern,
+	-mfunction-return=thunk and -mfunction-return=thunk-extern.
+
+gcc/testsuite/
+
+	Backport from mainline
+	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* gcc.target/i386/indirect-thunk-10.c: New test.
+	* gcc.target/i386/indirect-thunk-8.c: Likewise.
+	* gcc.target/i386/indirect-thunk-9.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-10.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-11.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-9.c: Likewise.
+	* gcc.target/i386/ret-thunk-17.c: Likewise.
+	* gcc.target/i386/ret-thunk-18.c: Likewise.
+	* gcc.target/i386/ret-thunk-19.c: Likewise.
+	* gcc.target/i386/ret-thunk-20.c: Likewise.
+	* gcc.target/i386/ret-thunk-21.c: Likewise.
+---
+ gcc/config/i386/i386.c                             | 26 ++++++++++++++++++++++
+ gcc/doc/invoke.texi                                | 11 +++++++++
+ gcc/testsuite/gcc.target/i386/indirect-thunk-10.c  |  7 ++++++
+ gcc/testsuite/gcc.target/i386/indirect-thunk-8.c   |  7 ++++++
+ gcc/testsuite/gcc.target/i386/indirect-thunk-9.c   |  7 ++++++
+ .../gcc.target/i386/indirect-thunk-attr-10.c       |  9 ++++++++
+ .../gcc.target/i386/indirect-thunk-attr-11.c       |  9 ++++++++
+ .../gcc.target/i386/indirect-thunk-attr-9.c        |  9 ++++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-17.c       |  7 ++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-18.c       |  8 +++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-19.c       |  8 +++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-20.c       |  9 ++++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-21.c       |  9 ++++++++
+ 13 files changed, 126 insertions(+)
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-10.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-8.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-9.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-17.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-18.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-19.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-20.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-21.c
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index eeca7e5e490..9c038bee000 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -6389,6 +6389,19 @@ ix86_set_indirect_branch_type (tree fndecl)
+ 	}
+       else
+ 	cfun->machine->indirect_branch_type = ix86_indirect_branch;
++
++      /* -mcmodel=large is not compatible with -mindirect-branch=thunk
++	 nor -mindirect-branch=thunk-extern.  */
++      if ((ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC)
++	  && ((cfun->machine->indirect_branch_type
++	       == indirect_branch_thunk_extern)
++	      || (cfun->machine->indirect_branch_type
++		  == indirect_branch_thunk)))
++	error ("%<-mindirect-branch=%s%> and %<-mcmodel=large%> are not "
++	       "compatible",
++	       ((cfun->machine->indirect_branch_type
++		 == indirect_branch_thunk_extern)
++		? "thunk-extern" : "thunk"));
+     }
+ 
+   if (cfun->machine->function_return_type == indirect_branch_unset)
+@@ -6414,6 +6427,19 @@ ix86_set_indirect_branch_type (tree fndecl)
+ 	}
+       else
+ 	cfun->machine->function_return_type = ix86_function_return;
++
++      /* -mcmodel=large is not compatible with -mfunction-return=thunk
++	 nor -mfunction-return=thunk-extern.  */
++      if ((ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC)
++	  && ((cfun->machine->function_return_type
++	       == indirect_branch_thunk_extern)
++	      || (cfun->machine->function_return_type
++		  == indirect_branch_thunk)))
++	error ("%<-mfunction-return=%s%> and %<-mcmodel=large%> are not "
++	       "compatible",
++	       ((cfun->machine->function_return_type
++		 == indirect_branch_thunk_extern)
++		? "thunk-extern" : "thunk"));
+     }
+ }
+ 
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index 94374661f2d..1dee495c86b 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -24242,6 +24242,11 @@ to external call and return thunk provided in a separate object file.
+ You can control this behavior for a specific function by using the
+ function attribute @code{indirect_branch}.  @xref{Function Attributes}.
+ 
++Note that @option{-mcmodel=large} is incompatible with
++@option{-mindirect-branch=thunk} nor
++@option{-mindirect-branch=thunk-extern} since the thunk function may
++not be reachable in large code model.
++
+ @item -mfunction-return=@var{choice}
+ @opindex -mfunction-return
+ Convert function return with @var{choice}.  The default is @samp{keep},
+@@ -24253,6 +24258,12 @@ object file.  You can control this behavior for a specific function by
+ using the function attribute @code{function_return}.
+ @xref{Function Attributes}.
+ 
++Note that @option{-mcmodel=large} is incompatible with
++@option{-mfunction-return=thunk} nor
++@option{-mfunction-return=thunk-extern} since the thunk function may
++not be reachable in large code model.
++
++
+ @item -mindirect-branch-register
+ @opindex -mindirect-branch-register
+ Force indirect call and jump via register.
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c
+new file mode 100644
+index 00000000000..a0674bd2363
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c
+@@ -0,0 +1,7 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -mfunction-return=keep -mcmodel=large" } */
++
++void
++bar (void)
++{
++}
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c
+new file mode 100644
+index 00000000000..7a80a8986e8
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c
+@@ -0,0 +1,7 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk -mfunction-return=keep -mcmodel=large" } */
++
++void
++bar (void)
++{ /* { dg-error "'-mindirect-branch=thunk' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c
+new file mode 100644
+index 00000000000..d4d45c5114d
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c
+@@ -0,0 +1,7 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -mfunction-return=keep -mcmodel=large" } */
++
++void
++bar (void)
++{ /* { dg-error "'-mindirect-branch=thunk-extern' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c
+new file mode 100644
+index 00000000000..3a2aeaddbc5
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c
+@@ -0,0 +1,9 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++__attribute__ ((indirect_branch("thunk-extern")))
++void
++bar (void)
++{ /* { dg-error "'-mindirect-branch=thunk-extern' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c
+new file mode 100644
+index 00000000000..8e52f032b6c
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c
+@@ -0,0 +1,9 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++__attribute__ ((indirect_branch("thunk-inline")))
++void
++bar (void)
++{
++}
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c
+new file mode 100644
+index 00000000000..bdaa4f6911b
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c
+@@ -0,0 +1,9 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++__attribute__ ((indirect_branch("thunk")))
++void
++bar (void)
++{ /* { dg-error "'-mindirect-branch=thunk' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-17.c b/gcc/testsuite/gcc.target/i386/ret-thunk-17.c
+new file mode 100644
+index 00000000000..0605e2c6542
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-17.c
+@@ -0,0 +1,7 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=keep -mcmodel=large" } */
++
++void
++bar (void)
++{ /* { dg-error "'-mfunction-return=thunk' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-18.c b/gcc/testsuite/gcc.target/i386/ret-thunk-18.c
+new file mode 100644
+index 00000000000..307019dc242
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-18.c
+@@ -0,0 +1,8 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++void
++bar (void)
++{ /* { dg-error "'-mfunction-return=thunk-extern' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-19.c b/gcc/testsuite/gcc.target/i386/ret-thunk-19.c
+new file mode 100644
+index 00000000000..772617f4010
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-19.c
+@@ -0,0 +1,8 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */
++
++__attribute__ ((function_return("thunk")))
++void
++bar (void)
++{ /* { dg-error "'-mfunction-return=thunk' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-20.c b/gcc/testsuite/gcc.target/i386/ret-thunk-20.c
+new file mode 100644
+index 00000000000..1e9f9bd5a66
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-20.c
+@@ -0,0 +1,9 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++__attribute__ ((function_return("thunk-extern")))
++void
++bar (void)
++{ /* { dg-error "'-mfunction-return=thunk-extern' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-21.c b/gcc/testsuite/gcc.target/i386/ret-thunk-21.c
+new file mode 100644
+index 00000000000..eea07f7abe1
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-21.c
+@@ -0,0 +1,9 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++__attribute__ ((function_return("thunk-inline")))
++void
++bar (void)
++{
++}
+-- 
+2.16.3
+
diff --git a/community/gcc6/0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch b/community/gcc6/0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch
new file mode 100644
index 0000000000..f33946c157
--- /dev/null
+++ b/community/gcc6/0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch
@@ -0,0 +1,121 @@
+From 07857bd9fb9ccab67a932ad9df3e53f3f0c2c617 Mon Sep 17 00:00:00 2001
+From: uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu, 25 Jan 2018 19:39:01 +0000
+Subject: [PATCH 09/13] Use INVALID_REGNUM in indirect thunk processing
+
+	Backport from mainline
+	2018-01-17  Uros Bizjak  <ubizjak@gmail.com>
+
+	* config/i386/i386.c (indirect_thunk_name): Declare regno
+	as unsigned int.  Compare regno with INVALID_REGNUM.
+	(output_indirect_thunk): Ditto.
+	(output_indirect_thunk_function): Ditto.
+	(ix86_code_end): Declare regno as unsigned int.  Use INVALID_REGNUM
+	in the call to output_indirect_thunk_function.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@257067 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+ gcc/config/i386/i386.c | 30 +++++++++++++++---------------
+ 1 file changed, 15 insertions(+), 15 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 9c038bee000..40126579c22 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -11087,16 +11087,16 @@ static int indirect_thunks_bnd_used;
+ /* Fills in the label name that should be used for the indirect thunk.  */
+ 
+ static void
+-indirect_thunk_name (char name[32], int regno, bool need_bnd_p,
+-		     bool ret_p)
++indirect_thunk_name (char name[32], unsigned int regno,
++		     bool need_bnd_p, bool ret_p)
+ {
+-  if (regno >= 0 && ret_p)
++  if (regno != INVALID_REGNUM && ret_p)
+     gcc_unreachable ();
+ 
+   if (USE_HIDDEN_LINKONCE)
+     {
+       const char *bnd = need_bnd_p ? "_bnd" : "";
+-      if (regno >= 0)
++      if (regno != INVALID_REGNUM)
+ 	{
+ 	  const char *reg_prefix;
+ 	  if (LEGACY_INT_REGNO_P (regno))
+@@ -11114,7 +11114,7 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p,
+     }
+   else
+     {
+-      if (regno >= 0)
++      if (regno != INVALID_REGNUM)
+ 	{
+ 	  if (need_bnd_p)
+ 	    ASM_GENERATE_INTERNAL_LABEL (name, "LITBR", regno);
+@@ -11166,7 +11166,7 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p,
+  */
+ 
+ static void
+-output_indirect_thunk (bool need_bnd_p, int regno)
++output_indirect_thunk (bool need_bnd_p, unsigned int regno)
+ {
+   char indirectlabel1[32];
+   char indirectlabel2[32];
+@@ -11196,7 +11196,7 @@ output_indirect_thunk (bool need_bnd_p, int regno)
+ 
+   ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
+ 
+-  if (regno >= 0)
++  if (regno != INVALID_REGNUM)
+     {
+       /* MOV.  */
+       rtx xops[2];
+@@ -11220,12 +11220,12 @@ output_indirect_thunk (bool need_bnd_p, int regno)
+ }
+ 
+ /* Output a funtion with a call and return thunk for indirect branch.
+-   If BND_P is true, the BND prefix is needed.   If REGNO != -1,  the
+-   function address is in REGNO.  Otherwise, the function address is
++   If BND_P is true, the BND prefix is needed.  If REGNO != INVALID_REGNUM,
++   the function address is in REGNO.  Otherwise, the function address is
+    on the top of stack.  */
+ 
+ static void
+-output_indirect_thunk_function (bool need_bnd_p, int regno)
++output_indirect_thunk_function (bool need_bnd_p, unsigned int regno)
+ {
+   char name[32];
+   tree decl;
+@@ -11274,7 +11274,7 @@ output_indirect_thunk_function (bool need_bnd_p, int regno)
+ 	ASM_OUTPUT_LABEL (asm_out_file, name);
+       }
+ 
+-  if (regno < 0)
++  if (regno == INVALID_REGNUM)
+     {
+       /* Create alias for __x86.return_thunk/__x86.return_thunk_bnd.  */
+       char alias[32];
+@@ -11348,16 +11348,16 @@ static void
+ ix86_code_end (void)
+ {
+   rtx xops[2];
+-  int regno;
++  unsigned int regno;
+ 
+   if (indirect_thunk_needed)
+-    output_indirect_thunk_function (false, -1);
++    output_indirect_thunk_function (false, INVALID_REGNUM);
+   if (indirect_thunk_bnd_needed)
+-    output_indirect_thunk_function (true, -1);
++    output_indirect_thunk_function (true, INVALID_REGNUM);
+ 
+   for (regno = FIRST_REX_INT_REG; regno <= LAST_REX_INT_REG; regno++)
+     {
+-      int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1;
++      unsigned int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1;
+       if ((indirect_thunks_used & (1 << i)))
+ 	output_indirect_thunk_function (false, regno);
+ 
+-- 
+2.16.3
+
diff --git a/community/gcc6/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch b/community/gcc6/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch
new file mode 100644
index 0000000000..08593c2b3e
--- /dev/null
+++ b/community/gcc6/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch
@@ -0,0 +1,41 @@
+From 3815e98f0f46b6c4c41e6810bad987bd083691aa Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 2 Feb 2018 16:47:02 +0000
+Subject: [PATCH 10/13] i386: Pass INVALID_REGNUM as invalid register number
+
+	Backport from mainline
+	* config/i386/i386.c (ix86_output_function_return): Pass
+	INVALID_REGNUM, instead of -1, as invalid register number to
+	indirect_thunk_name and output_indirect_thunk.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@257341 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+ gcc/config/i386/i386.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 40126579c22..66502ee6da6 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -28056,7 +28056,8 @@ ix86_output_function_return (bool long_p)
+ 	{
+ 	  bool need_thunk = (cfun->machine->function_return_type
+ 			     == indirect_branch_thunk);
+-	  indirect_thunk_name (thunk_name, -1, need_bnd_p, true);
++	  indirect_thunk_name (thunk_name, INVALID_REGNUM, need_bnd_p,
++			       true);
+ 	  if (need_bnd_p)
+ 	    {
+ 	      indirect_thunk_bnd_needed |= need_thunk;
+@@ -28069,7 +28070,7 @@ ix86_output_function_return (bool long_p)
+ 	    }
+ 	}
+       else
+-	output_indirect_thunk (need_bnd_p, -1);
++	output_indirect_thunk (need_bnd_p, INVALID_REGNUM);
+ 
+       return "";
+     }
+-- 
+2.16.3
+
diff --git a/community/gcc6/0011-i386-Update-mfunction-return-for-return-with-pop.patch b/community/gcc6/0011-i386-Update-mfunction-return-for-return-with-pop.patch
new file mode 100644
index 0000000000..3d528395b9
--- /dev/null
+++ b/community/gcc6/0011-i386-Update-mfunction-return-for-return-with-pop.patch
@@ -0,0 +1,456 @@
+From 771535dec733e4b85924f00a3a94c29683d614e5 Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Mon, 26 Feb 2018 15:29:30 +0000
+Subject: [PATCH 11/13] i386: Update -mfunction-return= for return with pop
+
+When -mfunction-return= is used, simple_return_pop_internal should pop
+return address into ECX register, adjust stack by bytes to pop from stack
+and jump to the return thunk via ECX register.
+
+Revision 257992 removed the bool argument from ix86_output_indirect_jmp.
+Update comments to reflect it.
+
+Tested on i686 and x86-64.
+
+gcc/
+
+	Backport from mainline
+	2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
+
+	2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/84530
+	* config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
+	the bool argument.
+	(ix86_output_indirect_function_return): New prototype.
+	(ix86_split_simple_return_pop_internal): Likewise.
+	* config/i386/i386.c (indirect_return_via_cx): New.
+	(indirect_return_via_cx_bnd): Likewise.
+	(indirect_thunk_name): Handle return va CX_REG.
+	(output_indirect_thunk_function): Create alias for
+	__x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
+	(ix86_output_indirect_jmp): Remove the bool argument.
+	(ix86_output_indirect_function_return): New function.
+	(ix86_split_simple_return_pop_internal): Likewise.
+	* config/i386/i386.md (*indirect_jump): Don't pass false
+	to ix86_output_indirect_jmp.
+	(*tablejump_1): Likewise.
+	(simple_return_pop_internal): Change it to define_insn_and_split.
+	Call ix86_split_simple_return_pop_internal to split it for
+	-mfunction-return=.
+	(simple_return_indirect_internal): Call
+	ix86_output_indirect_function_return instead of
+	ix86_output_indirect_jmp.
+
+gcc/testsuite/
+
+	Backport from mainline
+	2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/84530
+	* gcc.target/i386/ret-thunk-22.c: New test.
+	* gcc.target/i386/ret-thunk-23.c: Likewise.
+	* gcc.target/i386/ret-thunk-24.c: Likewise.
+	* gcc.target/i386/ret-thunk-25.c: Likewise.
+	* gcc.target/i386/ret-thunk-26.c: Likewise.
+---
+ gcc/config/i386/i386-protos.h                |   4 +-
+ gcc/config/i386/i386.c                       | 127 +++++++++++++++++++++++----
+ gcc/config/i386/i386.md                      |  11 ++-
+ gcc/testsuite/gcc.target/i386/ret-thunk-22.c |  15 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-23.c |  15 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-24.c |  15 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-25.c |  15 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-26.c |  40 +++++++++
+ 8 files changed, 222 insertions(+), 20 deletions(-)
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-22.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-23.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-24.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-25.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-26.c
+
+diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h
+index 620d70ef9f6..c7a0ccb58d3 100644
+--- a/gcc/config/i386/i386-protos.h
++++ b/gcc/config/i386/i386-protos.h
+@@ -311,8 +311,10 @@ extern enum attr_cpu ix86_schedule;
+ #endif
+ 
+ extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op);
+-extern const char * ix86_output_indirect_jmp (rtx call_op, bool ret_p);
++extern const char * ix86_output_indirect_jmp (rtx call_op);
+ extern const char * ix86_output_function_return (bool long_p);
++extern const char * ix86_output_indirect_function_return (rtx ret_op);
++extern void ix86_split_simple_return_pop_internal (rtx);
+ extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load,
+ 						enum machine_mode mode);
+ 
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 66502ee6da6..21c3c18bd3c 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -11080,6 +11080,12 @@ static int indirect_thunks_used;
+    by call and return thunks functions with the BND prefix.  */
+ static int indirect_thunks_bnd_used;
+ 
++/* True if return thunk function via CX is needed.  */
++static bool indirect_return_via_cx;
++/* True if return thunk function via CX with the BND prefix is
++   needed.  */
++static bool indirect_return_via_cx_bnd;
++
+ #ifndef INDIRECT_LABEL
+ # define INDIRECT_LABEL "LIND"
+ #endif
+@@ -11090,12 +11096,13 @@ static void
+ indirect_thunk_name (char name[32], unsigned int regno,
+ 		     bool need_bnd_p, bool ret_p)
+ {
+-  if (regno != INVALID_REGNUM && ret_p)
++  if (regno != INVALID_REGNUM && regno != CX_REG && ret_p)
+     gcc_unreachable ();
+ 
+   if (USE_HIDDEN_LINKONCE)
+     {
+       const char *bnd = need_bnd_p ? "_bnd" : "";
++      const char *ret = ret_p ? "return" : "indirect";
+       if (regno != INVALID_REGNUM)
+ 	{
+ 	  const char *reg_prefix;
+@@ -11103,14 +11110,11 @@ indirect_thunk_name (char name[32], unsigned int regno,
+ 	    reg_prefix = TARGET_64BIT ? "r" : "e";
+ 	  else
+ 	    reg_prefix = "";
+-	  sprintf (name, "__x86_indirect_thunk%s_%s%s",
+-		   bnd, reg_prefix, reg_names[regno]);
++	  sprintf (name, "__x86_%s_thunk%s_%s%s",
++		   ret, bnd, reg_prefix, reg_names[regno]);
+ 	}
+       else
+-	{
+-	  const char *ret = ret_p ? "return" : "indirect";
+-	  sprintf (name, "__x86_%s_thunk%s", ret, bnd);
+-	}
++	sprintf (name, "__x86_%s_thunk%s", ret, bnd);
+     }
+   else
+     {
+@@ -11274,9 +11278,23 @@ output_indirect_thunk_function (bool need_bnd_p, unsigned int regno)
+ 	ASM_OUTPUT_LABEL (asm_out_file, name);
+       }
+ 
++  /* Create alias for __x86_return_thunk/__x86_return_thunk_bnd or
++     __x86_return_thunk_ecx/__x86_return_thunk_ecx_bnd.  */
++  bool need_alias;
+   if (regno == INVALID_REGNUM)
++    need_alias = true;
++  else if (regno == CX_REG)
++    {
++      if (need_bnd_p)
++	need_alias = indirect_return_via_cx_bnd;
++      else
++	need_alias = indirect_return_via_cx;
++    }
++  else
++    need_alias = false;
++
++  if (need_alias)
+     {
+-      /* Create alias for __x86.return_thunk/__x86.return_thunk_bnd.  */
+       char alias[32];
+ 
+       indirect_thunk_name (alias, regno, need_bnd_p, true);
+@@ -28019,18 +28037,17 @@ ix86_output_indirect_branch (rtx call_op, const char *xasm,
+   else
+     ix86_output_indirect_branch_via_push (call_op, xasm, sibcall_p);
+ }
+-/* Output indirect jump.  CALL_OP is the jump target.  Jump is a
+-   function return if RET_P is true.  */
++
++/* Output indirect jump.  CALL_OP is the jump target.  */
+ 
+ const char *
+-ix86_output_indirect_jmp (rtx call_op, bool ret_p)
++ix86_output_indirect_jmp (rtx call_op)
+ {
+   if (cfun->machine->indirect_branch_type != indirect_branch_keep)
+     {
+-      /* We can't have red-zone if this isn't a function return since
+-	 "call" in the indirect thunk pushes the return address onto
+-	 stack, destroying red-zone.  */
+-      if (!ret_p && ix86_red_zone_size != 0)
++      /* We can't have red-zone since "call" in the indirect thunk
++         pushes the return address onto stack, destroying red-zone.  */
++      if (ix86_red_zone_size != 0)
+ 	gcc_unreachable ();
+ 
+       ix86_output_indirect_branch (call_op, "%0", true);
+@@ -28081,6 +28098,86 @@ ix86_output_function_return (bool long_p)
+   return "rep%; ret";
+ }
+ 
++/* Output indirect function return.  RET_OP is the function return
++   target.  */
++
++const char *
++ix86_output_indirect_function_return (rtx ret_op)
++{
++  if (cfun->machine->function_return_type != indirect_branch_keep)
++    {
++      char thunk_name[32];
++      bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
++      unsigned int regno = REGNO (ret_op);
++      gcc_assert (regno == CX_REG);
++
++      if (cfun->machine->function_return_type
++	  != indirect_branch_thunk_inline)
++	{
++	  bool need_thunk = (cfun->machine->function_return_type
++			     == indirect_branch_thunk);
++	  indirect_thunk_name (thunk_name, regno, need_bnd_p, true);
++	  if (need_bnd_p)
++	    {
++	      if (need_thunk)
++		{
++		  indirect_return_via_cx_bnd = true;
++		  indirect_thunks_bnd_used |= 1 << CX_REG;
++		}
++	      fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++	    }
++	  else
++	    {
++	      if (need_thunk)
++		{
++		  indirect_return_via_cx = true;
++		  indirect_thunks_used |= 1 << CX_REG;
++		}
++	      fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++	    }
++	}
++      else
++	output_indirect_thunk (need_bnd_p, regno);
++
++      return "";
++    }
++  else
++    return "%!jmp\t%A0";
++}
++
++/* Split simple return with popping POPC bytes from stack to indirect
++   branch with stack adjustment .  */
++
++void
++ix86_split_simple_return_pop_internal (rtx popc)
++{
++  struct machine_function *m = cfun->machine;
++  rtx ecx = gen_rtx_REG (SImode, CX_REG);
++  rtx_insn *insn;
++
++  /* There is no "pascal" calling convention in any 64bit ABI.  */
++  gcc_assert (!TARGET_64BIT);
++
++  insn = emit_insn (gen_pop (ecx));
++  m->fs.cfa_offset -= UNITS_PER_WORD;
++  m->fs.sp_offset -= UNITS_PER_WORD;
++
++  rtx x = plus_constant (Pmode, stack_pointer_rtx, UNITS_PER_WORD);
++  x = gen_rtx_SET (stack_pointer_rtx, x);
++  add_reg_note (insn, REG_CFA_ADJUST_CFA, x);
++  add_reg_note (insn, REG_CFA_REGISTER, gen_rtx_SET (ecx, pc_rtx));
++  RTX_FRAME_RELATED_P (insn) = 1;
++
++  x = gen_rtx_PLUS (Pmode, stack_pointer_rtx, popc);
++  x = gen_rtx_SET (stack_pointer_rtx, x);
++  insn = emit_insn (x);
++  add_reg_note (insn, REG_CFA_ADJUST_CFA, x);
++  RTX_FRAME_RELATED_P (insn) = 1;
++
++  /* Now return address is in ECX.  */
++  emit_jump_insn (gen_simple_return_indirect_internal (ecx));
++}
++
+ /* Output the assembly for a call instruction.  */
+ 
+ const char *
+diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
+index 05a88fff356..857466a6361 100644
+--- a/gcc/config/i386/i386.md
++++ b/gcc/config/i386/i386.md
+@@ -11813,7 +11813,7 @@
+ (define_insn "*indirect_jump"
+   [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))]
+   ""
+-  "* return ix86_output_indirect_jmp (operands[0], false);"
++  "* return ix86_output_indirect_jmp (operands[0]);"
+   [(set (attr "type")
+      (if_then_else (match_test "(cfun->machine->indirect_branch_type
+ 				 != indirect_branch_keep)")
+@@ -11868,7 +11868,7 @@
+   [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))
+    (use (label_ref (match_operand 1)))]
+   ""
+-  "* return ix86_output_indirect_jmp (operands[0], false);"
++  "* return ix86_output_indirect_jmp (operands[0]);"
+   [(set (attr "type")
+      (if_then_else (match_test "(cfun->machine->indirect_branch_type
+ 				 != indirect_branch_keep)")
+@@ -12520,11 +12520,14 @@
+    (set_attr "prefix_rep" "1")
+    (set_attr "modrm" "0")])
+ 
+-(define_insn "simple_return_pop_internal"
++(define_insn_and_split "simple_return_pop_internal"
+   [(simple_return)
+    (use (match_operand:SI 0 "const_int_operand"))]
+   "reload_completed"
+   "%!ret\t%0"
++  "&& cfun->machine->function_return_type != indirect_branch_keep"
++  [(const_int 0)]
++  "ix86_split_simple_return_pop_internal (operands[0]); DONE;"
+   [(set_attr "length" "3")
+    (set_attr "atom_unit" "jeu")
+    (set_attr "length_immediate" "2")
+@@ -12535,7 +12538,7 @@
+   [(simple_return)
+    (use (match_operand:SI 0 "register_operand" "r"))]
+   "reload_completed"
+-  "* return ix86_output_indirect_jmp (operands[0], true);"
++  "* return ix86_output_indirect_function_return (operands[0]);"
+   [(set (attr "type")
+      (if_then_else (match_test "(cfun->machine->indirect_branch_type
+ 				 != indirect_branch_keep)")
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-22.c b/gcc/testsuite/gcc.target/i386/ret-thunk-22.c
+new file mode 100644
+index 00000000000..89e086de97b
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-22.c
+@@ -0,0 +1,15 @@
++/* PR target/r84530 */
++/* { dg-do compile { target ia32 } } */
++/* { dg-options "-O2 -mfunction-return=thunk" } */
++
++struct s { _Complex unsigned short x; };
++struct s gs = { 100 + 200i };
++struct s __attribute__((noinline)) foo (void) { return gs; }
++
++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_ecx" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-23.c b/gcc/testsuite/gcc.target/i386/ret-thunk-23.c
+new file mode 100644
+index 00000000000..43f0ccaa854
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-23.c
+@@ -0,0 +1,15 @@
++/* PR target/r84530 */
++/* { dg-do compile { target ia32 } } */
++/* { dg-options "-O2 -mfunction-return=thunk-extern" } */
++
++struct s { _Complex unsigned short x; };
++struct s gs = { 100 + 200i };
++struct s __attribute__((noinline)) foo (void) { return gs; }
++
++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_ecx" } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not {\tpause} } } */
++/* { dg-final { scan-assembler-not {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-24.c b/gcc/testsuite/gcc.target/i386/ret-thunk-24.c
+new file mode 100644
+index 00000000000..8729e35147e
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-24.c
+@@ -0,0 +1,15 @@
++/* PR target/r84530 */
++/* { dg-do compile { target ia32 } } */
++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */
++
++struct s { _Complex unsigned short x; };
++struct s gs = { 100 + 200i };
++struct s __attribute__((noinline)) foo (void) { return gs; }
++
++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk_ecx" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-25.c b/gcc/testsuite/gcc.target/i386/ret-thunk-25.c
+new file mode 100644
+index 00000000000..f73553c9a9f
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-25.c
+@@ -0,0 +1,15 @@
++/* PR target/r84530 */
++/* { dg-do compile { target ia32 } } */
++/* { dg-options "-O2 -mfunction-return=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++
++struct s { _Complex unsigned short x; };
++struct s gs = { 100 + 200i };
++struct s __attribute__((noinline)) foo (void) { return gs; }
++
++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_bnd_ecx" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-26.c b/gcc/testsuite/gcc.target/i386/ret-thunk-26.c
+new file mode 100644
+index 00000000000..9144e988735
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-26.c
+@@ -0,0 +1,40 @@
++/* PR target/r84530 */
++/* { dg-do run } */
++/* { dg-options "-Os -mfunction-return=thunk" } */
++
++struct S { int i; };
++__attribute__((const, noinline, noclone))
++struct S foo (int x)
++{
++  struct S s;
++  s.i = x;
++  return s;
++}
++
++int a[2048], b[2048], c[2048], d[2048];
++struct S e[2048];
++
++__attribute__((noinline, noclone)) void
++bar (void)
++{
++  int i;
++  for (i = 0; i < 1024; i++)
++    {
++      e[i] = foo (i);
++      a[i+2] = a[i] + a[i+1];
++      b[10] = b[10] + i;
++      c[i] = c[2047 - i];
++      d[i] = d[i + 1];
++    }
++}
++
++int
++main ()
++{
++  int i;
++  bar ();
++  for (i = 0; i < 1024; i++)
++    if (e[i].i != i)
++      __builtin_abort ();
++  return 0;
++}
+-- 
+2.16.3
+
diff --git a/community/gcc6/0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch b/community/gcc6/0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch
new file mode 100644
index 0000000000..1bd6134cea
--- /dev/null
+++ b/community/gcc6/0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch
@@ -0,0 +1,1003 @@
+From a34d0b92e2c81792bd1f27e872c4c97a2df6861c Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Mon, 26 Feb 2018 17:00:46 +0000
+Subject: [PATCH 12/13] i386: Add TARGET_INDIRECT_BRANCH_REGISTER
+
+For
+
+---
+struct C {
+  virtual ~C();
+  virtual void f();
+};
+
+void
+f (C *p)
+{
+  p->f();
+  p->f();
+}
+---
+
+-mindirect-branch=thunk-extern -O2 on x86-64 GNU/Linux generates:
+
+_Z1fP1C:
+.LFB0:
+        .cfi_startproc
+        pushq   %rbx
+        .cfi_def_cfa_offset 16
+        .cfi_offset 3, -16
+        movq    (%rdi), %rax
+        movq    %rdi, %rbx
+        jmp     .LIND1
+.LIND0:
+        pushq   16(%rax)
+        jmp     __x86_indirect_thunk
+.LIND1:
+        call    .LIND0
+        movq    (%rbx), %rax
+        movq    %rbx, %rdi
+        popq    %rbx
+        .cfi_def_cfa_offset 8
+        movq    16(%rax), %rax
+        jmp     __x86_indirect_thunk_rax
+        .cfi_endproc
+
+x86-64 is supposed to have asynchronous unwind tables by default, but
+there is nothing that reflects the change in the (relative) frame
+address after .LIND0.  That region really has to be moved outside of
+the .cfi_startproc/.cfi_endproc bracket.
+
+This patch adds TARGET_INDIRECT_BRANCH_REGISTER to force indirect
+branch via register whenever -mindirect-branch= is used.  Now,
+-mindirect-branch=thunk-extern -O2 on x86-64 GNU/Linux generates:
+
+_Z1fP1C:
+.LFB0:
+	.cfi_startproc
+	pushq	%rbx
+	.cfi_def_cfa_offset 16
+	.cfi_offset 3, -16
+	movq	(%rdi), %rax
+	movq	%rdi, %rbx
+	movq	16(%rax), %rax
+	call	__x86_indirect_thunk_rax
+	movq	(%rbx), %rax
+	movq	%rbx, %rdi
+	popq	%rbx
+	.cfi_def_cfa_offset 8
+	movq	16(%rax), %rax
+	jmp	__x86_indirect_thunk_rax
+	.cfi_endproc
+
+so that "-mindirect-branch=thunk-extern" is equivalent to
+"-mindirect-branch=thunk-extern -mindirect-branch-register", which is
+used by Linux kernel.
+
+gcc/
+
+	Backport from mainline
+	2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/84039
+	* config/i386/constraints.md (Bs): Replace
+	ix86_indirect_branch_register with
+	TARGET_INDIRECT_BRANCH_REGISTER.
+	(Bw): Likewise.
+	* config/i386/i386.md (indirect_jump): Likewise.
+	(tablejump): Likewise.
+	(*sibcall_memory): Likewise.
+	(*sibcall_value_memory): Likewise.
+	Peepholes of indirect call and jump via memory: Likewise.
+	(*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER.
+	(*sibcall_value_GOT_32): Likewise.
+	* config/i386/predicates.md (indirect_branch_operand): Likewise.
+	(GOT_memory_operand): Likewise.
+	(call_insn_operand): Likewise.
+	(sibcall_insn_operand): Likewise.
+	(GOT32_symbol_operand): Likewise.
+	* config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New.
+
+gcc/testsuite/
+
+	Backport from mainline
+	2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/84039
+	* gcc.target/i386/indirect-thunk-1.c: Updated.
+	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+	* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+	* gcc.target/i386/ret-thunk-9.c: Likewise.
+	* gcc.target/i386/ret-thunk-10.c: Likewise.
+	* gcc.target/i386/ret-thunk-11.c: Likewise.
+	* gcc.target/i386/ret-thunk-12.c: Likewise.
+	* gcc.target/i386/ret-thunk-13.c: Likewise.
+	* gcc.target/i386/ret-thunk-14.c: Likewise.
+	* gcc.target/i386/ret-thunk-15.c: Likewise.
+---
+ gcc/config/i386/constraints.md                     |  4 ++--
+ gcc/config/i386/i386.h                             |  5 ++++
+ gcc/config/i386/i386.md                            | 28 +++++++++++++---------
+ gcc/config/i386/predicates.md                      |  6 ++---
+ gcc/testsuite/gcc.target/i386/indirect-thunk-1.c   |  5 ++--
+ gcc/testsuite/gcc.target/i386/indirect-thunk-2.c   |  5 ++--
+ gcc/testsuite/gcc.target/i386/indirect-thunk-3.c   |  5 ++--
+ gcc/testsuite/gcc.target/i386/indirect-thunk-4.c   |  5 ++--
+ gcc/testsuite/gcc.target/i386/indirect-thunk-5.c   |  6 +++--
+ gcc/testsuite/gcc.target/i386/indirect-thunk-6.c   | 12 ++++++----
+ gcc/testsuite/gcc.target/i386/indirect-thunk-7.c   |  5 ++--
+ .../gcc.target/i386/indirect-thunk-attr-1.c        |  5 ++--
+ .../gcc.target/i386/indirect-thunk-attr-2.c        |  5 ++--
+ .../gcc.target/i386/indirect-thunk-attr-3.c        |  3 +--
+ .../gcc.target/i386/indirect-thunk-attr-4.c        |  3 +--
+ .../gcc.target/i386/indirect-thunk-attr-5.c        |  9 ++++---
+ .../gcc.target/i386/indirect-thunk-attr-6.c        |  9 ++++---
+ .../gcc.target/i386/indirect-thunk-attr-7.c        |  5 ++--
+ .../gcc.target/i386/indirect-thunk-bnd-1.c         |  6 ++---
+ .../gcc.target/i386/indirect-thunk-bnd-2.c         |  6 ++---
+ .../gcc.target/i386/indirect-thunk-bnd-3.c         |  5 ++--
+ .../gcc.target/i386/indirect-thunk-bnd-4.c         |  7 +++---
+ .../gcc.target/i386/indirect-thunk-extern-1.c      |  5 ++--
+ .../gcc.target/i386/indirect-thunk-extern-2.c      |  5 ++--
+ .../gcc.target/i386/indirect-thunk-extern-3.c      |  9 ++++---
+ .../gcc.target/i386/indirect-thunk-extern-4.c      |  6 ++---
+ .../gcc.target/i386/indirect-thunk-extern-5.c      |  6 +++--
+ .../gcc.target/i386/indirect-thunk-extern-6.c      |  8 +++----
+ .../gcc.target/i386/indirect-thunk-extern-7.c      |  5 ++--
+ .../gcc.target/i386/indirect-thunk-inline-1.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-2.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-3.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-4.c      |  2 +-
+ .../gcc.target/i386/indirect-thunk-inline-5.c      |  3 ++-
+ .../gcc.target/i386/indirect-thunk-inline-6.c      |  3 ++-
+ .../gcc.target/i386/indirect-thunk-inline-7.c      |  4 ++--
+ gcc/testsuite/gcc.target/i386/ret-thunk-10.c       |  9 +++----
+ gcc/testsuite/gcc.target/i386/ret-thunk-11.c       |  9 +++----
+ gcc/testsuite/gcc.target/i386/ret-thunk-12.c       |  8 +++----
+ gcc/testsuite/gcc.target/i386/ret-thunk-13.c       |  5 ++--
+ gcc/testsuite/gcc.target/i386/ret-thunk-14.c       |  7 +++---
+ gcc/testsuite/gcc.target/i386/ret-thunk-15.c       |  7 +++---
+ gcc/testsuite/gcc.target/i386/ret-thunk-9.c        | 13 ++++------
+ 43 files changed, 128 insertions(+), 141 deletions(-)
+
+diff --git a/gcc/config/i386/constraints.md b/gcc/config/i386/constraints.md
+index 9204c8e8487..ef684a95497 100644
+--- a/gcc/config/i386/constraints.md
++++ b/gcc/config/i386/constraints.md
+@@ -172,7 +172,7 @@
+ 
+ (define_constraint "Bs"
+   "@internal Sibcall memory operand."
+-  (ior (and (not (match_test "ix86_indirect_branch_register"))
++  (ior (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
+ 	    (not (match_test "TARGET_X32"))
+ 	    (match_operand 0 "sibcall_memory_operand"))
+        (and (match_test "TARGET_X32 && Pmode == DImode")
+@@ -180,7 +180,7 @@
+ 
+ (define_constraint "Bw"
+   "@internal Call memory operand."
+-  (ior (and (not (match_test "ix86_indirect_branch_register"))
++  (ior (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
+ 	    (not (match_test "TARGET_X32"))
+ 	    (match_operand 0 "memory_operand"))
+        (and (match_test "TARGET_X32 && Pmode == DImode")
+diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
+index b34bc117c34..1816d710f4e 100644
+--- a/gcc/config/i386/i386.h
++++ b/gcc/config/i386/i386.h
+@@ -2676,6 +2676,11 @@ extern void debug_dispatch_window (int);
+ #define TARGET_RECIP_VEC_DIV	((recip_mask & RECIP_MASK_VEC_DIV) != 0)
+ #define TARGET_RECIP_VEC_SQRT	((recip_mask & RECIP_MASK_VEC_SQRT) != 0)
+ 
++
++#define TARGET_INDIRECT_BRANCH_REGISTER \
++  (ix86_indirect_branch_register \
++   || cfun->machine->indirect_branch_type != indirect_branch_keep)
++
+ #define IX86_HLE_ACQUIRE (1 << 16)
+ #define IX86_HLE_RELEASE (1 << 17)
+ 
+diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
+index 857466a6361..6a6dc26799c 100644
+--- a/gcc/config/i386/i386.md
++++ b/gcc/config/i386/i386.md
+@@ -11805,7 +11805,7 @@
+   [(set (pc) (match_operand 0 "indirect_branch_operand"))]
+   ""
+ {
+-  if (TARGET_X32 || ix86_indirect_branch_register)
++  if (TARGET_X32 || TARGET_INDIRECT_BRANCH_REGISTER)
+     operands[0] = convert_memory_address (word_mode, operands[0]);
+   cfun->machine->has_local_indirect_jump = true;
+ })
+@@ -11859,7 +11859,7 @@
+ 					 OPTAB_DIRECT);
+     }
+ 
+-  if (TARGET_X32 || ix86_indirect_branch_register)
++  if (TARGET_X32 || TARGET_INDIRECT_BRANCH_REGISTER)
+     operands[0] = convert_memory_address (word_mode, operands[0]);
+   cfun->machine->has_local_indirect_jump = true;
+ })
+@@ -12029,7 +12029,10 @@
+ 		     (match_operand:SI 0 "register_no_elim_operand" "U")
+ 		     (match_operand:SI 1 "GOT32_symbol_operand"))))
+ 	 (match_operand 2))]
+-  "!TARGET_MACHO && !TARGET_64BIT && SIBLING_CALL_P (insn)"
++  "!TARGET_MACHO
++  && !TARGET_64BIT
++  && !TARGET_INDIRECT_BRANCH_REGISTER
++  && SIBLING_CALL_P (insn)"
+ {
+   rtx fnaddr = gen_rtx_PLUS (Pmode, operands[0], operands[1]);
+   fnaddr = gen_const_mem (Pmode, fnaddr);
+@@ -12048,7 +12051,7 @@
+   [(call (mem:QI (match_operand:W 0 "memory_operand" "m"))
+ 	 (match_operand 1))
+    (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
+-  "!TARGET_X32 && !ix86_indirect_branch_register"
++  "!TARGET_X32 && !TARGET_INDIRECT_BRANCH_REGISTER"
+   "* return ix86_output_call_insn (insn, operands[0]);"
+   [(set_attr "type" "call")])
+ 
+@@ -12058,7 +12061,7 @@
+    (call (mem:QI (match_dup 0))
+ 	 (match_operand 3))]
+   "!TARGET_X32
+-   && !ix86_indirect_branch_register
++   && !TARGET_INDIRECT_BRANCH_REGISTER
+    && SIBLING_CALL_P (peep2_next_insn (1))
+    && !reg_mentioned_p (operands[0],
+ 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
+@@ -12073,7 +12076,7 @@
+    (call (mem:QI (match_dup 0))
+ 	 (match_operand 3))]
+   "!TARGET_X32
+-   && !ix86_indirect_branch_register
++   && !TARGET_INDIRECT_BRANCH_REGISTER
+    && SIBLING_CALL_P (peep2_next_insn (2))
+    && !reg_mentioned_p (operands[0],
+ 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
+@@ -12171,7 +12174,7 @@
+         (match_operand:W 1 "memory_operand"))
+    (set (pc) (match_dup 0))]
+   "!TARGET_X32
+-   && !ix86_indirect_branch_register
++   && !TARGET_INDIRECT_BRANCH_REGISTER
+    && peep2_reg_dead_p (2, operands[0])"
+   [(set (pc) (match_dup 1))])
+ 
+@@ -12229,7 +12232,10 @@
+ 			  (match_operand:SI 1 "register_no_elim_operand" "U")
+ 			  (match_operand:SI 2 "GOT32_symbol_operand"))))
+ 	 (match_operand 3)))]
+-  "!TARGET_MACHO && !TARGET_64BIT && SIBLING_CALL_P (insn)"
++  "!TARGET_MACHO
++   && !TARGET_64BIT
++   && !TARGET_INDIRECT_BRANCH_REGISTER
++   && SIBLING_CALL_P (insn)"
+ {
+   rtx fnaddr = gen_rtx_PLUS (Pmode, operands[1], operands[2]);
+   fnaddr = gen_const_mem (Pmode, fnaddr);
+@@ -12250,7 +12256,7 @@
+  	(call (mem:QI (match_operand:W 1 "memory_operand" "m"))
+ 	      (match_operand 2)))
+    (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
+-  "!TARGET_X32 && !ix86_indirect_branch_register"
++  "!TARGET_X32 && !TARGET_INDIRECT_BRANCH_REGISTER"
+   "* return ix86_output_call_insn (insn, operands[1]);"
+   [(set_attr "type" "callv")])
+ 
+@@ -12261,7 +12267,7 @@
+    (call (mem:QI (match_dup 0))
+ 		 (match_operand 3)))]
+   "!TARGET_X32
+-   && !ix86_indirect_branch_register
++   && !TARGET_INDIRECT_BRANCH_REGISTER
+    && SIBLING_CALL_P (peep2_next_insn (1))
+    && !reg_mentioned_p (operands[0],
+ 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
+@@ -12278,7 +12284,7 @@
+ 	(call (mem:QI (match_dup 0))
+ 	      (match_operand 3)))]
+   "!TARGET_X32
+-   && !ix86_indirect_branch_register
++   && !TARGET_INDIRECT_BRANCH_REGISTER
+    && SIBLING_CALL_P (peep2_next_insn (2))
+    && !reg_mentioned_p (operands[0],
+ 			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
+diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
+index d1f0a7dbf61..5f8a98faead 100644
+--- a/gcc/config/i386/predicates.md
++++ b/gcc/config/i386/predicates.md
+@@ -593,7 +593,7 @@
+ ;; Test for a valid operand for indirect branch.
+ (define_predicate "indirect_branch_operand"
+   (ior (match_operand 0 "register_operand")
+-       (and (not (match_test "ix86_indirect_branch_register"))
++       (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
+ 	    (not (match_test "TARGET_X32"))
+ 	    (match_operand 0 "memory_operand"))))
+ 
+@@ -637,7 +637,7 @@
+   (ior (match_test "constant_call_address_operand
+ 		     (op, mode == VOIDmode ? mode : Pmode)")
+        (match_operand 0 "call_register_no_elim_operand")
+-       (and (not (match_test "ix86_indirect_branch_register"))
++       (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
+ 	    (ior (and (not (match_test "TARGET_X32"))
+ 		      (match_operand 0 "memory_operand"))
+ 		 (and (match_test "TARGET_X32 && Pmode == DImode")
+@@ -648,7 +648,7 @@
+   (ior (match_test "constant_call_address_operand
+ 		     (op, mode == VOIDmode ? mode : Pmode)")
+        (match_operand 0 "register_no_elim_operand")
+-       (and (not (match_test "ix86_indirect_branch_register"))
++       (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
+ 	    (ior (and (not (match_test "TARGET_X32"))
+ 		      (match_operand 0 "sibcall_memory_operand"))
+ 		 (and (match_test "TARGET_X32 && Pmode == DImode")
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+index 60d09881a99..6e94d2c4865 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+@@ -11,9 +11,8 @@ male_indirect_jump (long offset)
+   dispatch(offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+index aac75163794..3c467078964 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+@@ -11,9 +11,8 @@ male_indirect_jump (long offset)
+   dispatch[offset](offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+index 9e24a385387..2c7fb52b59d 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+@@ -12,9 +12,8 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+index 127b5d94523..0d3f895009d 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+@@ -12,9 +12,8 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+index fcaa18d10b7..fb26c005e80 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+@@ -9,8 +9,10 @@ foo (void)
+   bar ();
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+index e4649283d10..aa03fbd8446 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+@@ -10,9 +10,13 @@ foo (void)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 { target x32 } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+index 17c2d0faf88..3c72036dbaf 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+@@ -35,9 +35,8 @@ bar (int i)
+     }
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+index 9194ccf3cbc..7106407b83d 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+@@ -14,9 +14,8 @@ male_indirect_jump (long offset)
+   dispatch(offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+index e51f261a612..27c7e5b029b 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+@@ -12,9 +12,8 @@ male_indirect_jump (long offset)
+   dispatch[offset](offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+index 4aeec1833cd..89a2bac8403 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+@@ -14,10 +14,9 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+index ac0e5999f63..3eb83c3779a 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+@@ -13,10 +13,9 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+index 573cf1ef09e..0098dd1133d 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+@@ -14,9 +14,8 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+index b2b37fc6e2e..ece8de15a4b 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+@@ -13,9 +13,8 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+index 4a43e199931..d53fc887dcc 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+@@ -36,9 +36,8 @@ bar (int i)
+     }
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+index ac84ab623fa..73d16baddc7 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+@@ -10,9 +10,9 @@ foo (void)
+   dispatch (buf);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd_rax" { target lp64 } } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_eax" { target ia32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+index ce655e8be1c..856751ac224 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+@@ -11,10 +11,8 @@ foo (void)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+index d34485a0010..42312f65588 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+@@ -10,8 +10,9 @@ foo (void)
+   bar (buf);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd_rax" { target lp64 } } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_eax" { target ia32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+index 0e19830de4d..c8ca102c8df 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+@@ -11,10 +11,9 @@ foo (void)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk" } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */
+-/* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_(r|e)ax" } } */
++/* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 1 } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+index 579441f250e..c09dd0afd2d 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+@@ -11,9 +11,8 @@ male_indirect_jump (long offset)
+   dispatch(offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+index c92e6f2b02d..826425a5115 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+@@ -11,9 +11,8 @@ male_indirect_jump (long offset)
+   dispatch[offset](offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+index d9964c25bbd..385626850a2 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+@@ -12,9 +12,8 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+index d4dca4dc5fe..1ae49b137ca 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+@@ -12,9 +12,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+index 5c07e02df6a..53282390977 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+@@ -9,8 +9,10 @@ foo (void)
+   bar ();
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+index 3eb440693a0..8ae43482d0c 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+@@ -10,8 +10,8 @@ foo (void)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+index aece9383697..2b9a33e93dc 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+@@ -35,9 +35,8 @@ bar (int i)
+     }
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+index 3aba5e8c81f..869d9040838 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+   dispatch(offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+index 0f0181d6672..c5c16ed8bd8 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+   dispatch[offset](offset);
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+index 2eef6f35a75..4a63ebed8ab 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+index e825a10f14c..a395ffca018 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+index c6d77e10352..21cbfd39582 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+@@ -9,7 +9,8 @@ foo (void)
+   bar ();
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+index 6454827b780..d1300f18dc7 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+@@ -10,7 +10,8 @@ foo (void)
+   return 0;
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+index c67066cf197..ea009245a58 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+@@ -35,8 +35,8 @@ bar (int i)
+     }
+ }
+ 
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+index e6fea84a4d9..af9023af613 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+@@ -15,9 +15,6 @@ foo (void)
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 2 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 2 } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } }  } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } }  } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } }  } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } }  } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+index e239ec4542f..ba467c59b36 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+@@ -15,9 +15,6 @@ foo (void)
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } }  } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } }  } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } }  } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+index fa3181303c9..43e57cac2c3 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+@@ -15,8 +15,6 @@ foo (void)
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } }  } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } }  } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } }  } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+index fd5b41fdd3f..55f156c4376 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+@@ -14,9 +14,8 @@ foo (void)
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 2 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 2 } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 3 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 3 } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_indirect_thunk" } } */
+-/* { dg-final { scan-assembler-not "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } }  } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+index d606373ead1..1c790436a53 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+@@ -16,7 +16,6 @@ foo (void)
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } }  } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+index 75e45e226b8..58aba319cba 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+@@ -16,7 +16,6 @@ foo (void)
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+index d1db41cc128..d2df8b874e0 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+@@ -14,11 +14,8 @@ foo (void)
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "__x86_indirect_thunk:" } } */
+-/* { dg-final { scan-assembler-times {\tpause} 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times {\tlfence} 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times {\tpause} 2 { target { x32 } } } } */
+-/* { dg-final { scan-assembler-times {\tlfence} 2 { target { x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler-times {\tpause} 2 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+-- 
+2.16.3
+
diff --git a/community/gcc6/0013-i386-Don-t-generate-alias-for-function-return-thunk.patch b/community/gcc6/0013-i386-Don-t-generate-alias-for-function-return-thunk.patch
new file mode 100644
index 0000000000..d846ac77d9
--- /dev/null
+++ b/community/gcc6/0013-i386-Don-t-generate-alias-for-function-return-thunk.patch
@@ -0,0 +1,225 @@
+From e7fbaebc8ff650df76f43e92cb9ca59d5174ebe7 Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu, 15 Mar 2018 17:54:40 +0000
+Subject: [PATCH 13/13] i386: Don't generate alias for function return thunk
+
+Function return thunks shouldn't be aliased to indirect branch thunks
+since indirect branch thunks are placed in COMDAT section and a COMDAT
+section with indirect branch may not have function return thunk.  This
+patch generates function return thunks directly.
+
+gcc/
+
+	Backport from mainline
+	PR target/84574
+	* config/i386/i386.c (indirect_thunk_needed): Update comments.
+	(indirect_thunk_bnd_needed): Likewise.
+	(indirect_thunks_used): Likewise.
+	(indirect_thunks_bnd_used): Likewise.
+	(indirect_return_needed): New.
+	(indirect_return_bnd_needed): Likewise.
+	(output_indirect_thunk_function): Add a bool argument for
+	function return.
+	(output_indirect_thunk_function): Don't generate alias for
+	function return thunk.
+	(ix86_code_end): Call output_indirect_thunk_function to generate
+	function return thunks.
+	(ix86_output_function_return): Set indirect_return_bnd_needed
+	and indirect_return_needed instead of indirect_thunk_bnd_needed
+	and indirect_thunk_needed.
+
+gcc/testsuite/
+
+	Backport from mainline
+	PR target/84574
+	* gcc.target/i386/ret-thunk-9.c: Expect __x86_return_thunk
+	label instead of __x86_indirect_thunk label.
+---
+ gcc/config/i386/i386.c                      | 92 ++++++++++-------------------
+ gcc/testsuite/gcc.target/i386/ret-thunk-9.c |  2 +-
+ 2 files changed, 33 insertions(+), 61 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 21c3c18bd3c..f4cd1c6f4e9 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -11067,19 +11067,23 @@ ix86_setup_frame_addresses (void)
+    labels in call and return thunks.  */
+ static int indirectlabelno;
+ 
+-/* True if call and return thunk functions are needed.  */
++/* True if call thunk function is needed.  */
+ static bool indirect_thunk_needed = false;
+-/* True if call and return thunk functions with the BND prefix are
+-   needed.  */
++/* True if call thunk function with the BND prefix is needed.  */
+ static bool indirect_thunk_bnd_needed = false;
+ 
+ /* Bit masks of integer registers, which contain branch target, used
+-   by call and return thunks functions.  */
++   by call thunk functions.  */
+ static int indirect_thunks_used;
+ /* Bit masks of integer registers, which contain branch target, used
+-   by call and return thunks functions with the BND prefix.  */
++   by call thunk functions with the BND prefix.  */
+ static int indirect_thunks_bnd_used;
+ 
++/* True if return thunk function is needed.  */
++static bool indirect_return_needed = false;
++/* True if return thunk function with the BND prefix is needed.  */
++static bool indirect_return_bnd_needed = false;
++
+ /* True if return thunk function via CX is needed.  */
+ static bool indirect_return_via_cx;
+ /* True if return thunk function via CX with the BND prefix is
+@@ -11226,16 +11230,18 @@ output_indirect_thunk (bool need_bnd_p, unsigned int regno)
+ /* Output a funtion with a call and return thunk for indirect branch.
+    If BND_P is true, the BND prefix is needed.  If REGNO != INVALID_REGNUM,
+    the function address is in REGNO.  Otherwise, the function address is
+-   on the top of stack.  */
++   on the top of stack.  Thunk is used for function return if RET_P is
++   true.  */
+ 
+ static void
+-output_indirect_thunk_function (bool need_bnd_p, unsigned int regno)
++output_indirect_thunk_function (bool need_bnd_p, unsigned int regno,
++				bool ret_p)
+ {
+   char name[32];
+   tree decl;
+ 
+   /* Create __x86_indirect_thunk/__x86_indirect_thunk_bnd.  */
+-  indirect_thunk_name (name, regno, need_bnd_p, false);
++  indirect_thunk_name (name, regno, need_bnd_p, ret_p);
+   decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL,
+ 		     get_identifier (name),
+ 		     build_function_type_list (void_type_node, NULL_TREE));
+@@ -11278,50 +11284,6 @@ output_indirect_thunk_function (bool need_bnd_p, unsigned int regno)
+ 	ASM_OUTPUT_LABEL (asm_out_file, name);
+       }
+ 
+-  /* Create alias for __x86_return_thunk/__x86_return_thunk_bnd or
+-     __x86_return_thunk_ecx/__x86_return_thunk_ecx_bnd.  */
+-  bool need_alias;
+-  if (regno == INVALID_REGNUM)
+-    need_alias = true;
+-  else if (regno == CX_REG)
+-    {
+-      if (need_bnd_p)
+-	need_alias = indirect_return_via_cx_bnd;
+-      else
+-	need_alias = indirect_return_via_cx;
+-    }
+-  else
+-    need_alias = false;
+-
+-  if (need_alias)
+-    {
+-      char alias[32];
+-
+-      indirect_thunk_name (alias, regno, need_bnd_p, true);
+-#if TARGET_MACHO
+-      if (TARGET_MACHO)
+-	{
+-	  fputs ("\t.weak_definition\t", asm_out_file);
+-	  assemble_name (asm_out_file, alias);
+-	  fputs ("\n\t.private_extern\t", asm_out_file);
+-	  assemble_name (asm_out_file, alias);
+-	  putc ('\n', asm_out_file);
+-	  ASM_OUTPUT_LABEL (asm_out_file, alias);
+-	}
+-#else
+-      ASM_OUTPUT_DEF (asm_out_file, alias, name);
+-      if (USE_HIDDEN_LINKONCE)
+-	{
+-	  fputs ("\t.globl\t", asm_out_file);
+-	  assemble_name (asm_out_file, alias);
+-	  putc ('\n', asm_out_file);
+-	  fputs ("\t.hidden\t", asm_out_file);
+-	  assemble_name (asm_out_file, alias);
+-	  putc ('\n', asm_out_file);
+-	}
+-#endif
+-    }
+-
+   DECL_INITIAL (decl) = make_node (BLOCK);
+   current_function_decl = decl;
+   allocate_struct_function (decl, false);
+@@ -11368,19 +11330,29 @@ ix86_code_end (void)
+   rtx xops[2];
+   unsigned int regno;
+ 
++  if (indirect_return_needed)
++    output_indirect_thunk_function (false, INVALID_REGNUM, true);
++  if (indirect_return_bnd_needed)
++    output_indirect_thunk_function (true, INVALID_REGNUM, true);
++
++  if (indirect_return_via_cx)
++    output_indirect_thunk_function (false, CX_REG, true);
++  if (indirect_return_via_cx_bnd)
++    output_indirect_thunk_function (true, CX_REG, true);
++
+   if (indirect_thunk_needed)
+-    output_indirect_thunk_function (false, INVALID_REGNUM);
++    output_indirect_thunk_function (false, INVALID_REGNUM, false);
+   if (indirect_thunk_bnd_needed)
+-    output_indirect_thunk_function (true, INVALID_REGNUM);
++    output_indirect_thunk_function (true, INVALID_REGNUM, false);
+ 
+   for (regno = FIRST_REX_INT_REG; regno <= LAST_REX_INT_REG; regno++)
+     {
+       unsigned int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1;
+       if ((indirect_thunks_used & (1 << i)))
+-	output_indirect_thunk_function (false, regno);
++	output_indirect_thunk_function (false, regno, false);
+ 
+       if ((indirect_thunks_bnd_used & (1 << i)))
+-	output_indirect_thunk_function (true, regno);
++	output_indirect_thunk_function (true, regno, false);
+     }
+ 
+   for (regno = AX_REG; regno <= SP_REG; regno++)
+@@ -11389,10 +11361,10 @@ ix86_code_end (void)
+       tree decl;
+ 
+       if ((indirect_thunks_used & (1 << regno)))
+-	output_indirect_thunk_function (false, regno);
++	output_indirect_thunk_function (false, regno, false);
+ 
+       if ((indirect_thunks_bnd_used & (1 << regno)))
+-	output_indirect_thunk_function (true, regno);
++	output_indirect_thunk_function (true, regno, false);
+ 
+       if (!(pic_labels_used & (1 << regno)))
+ 	continue;
+@@ -28077,12 +28049,12 @@ ix86_output_function_return (bool long_p)
+ 			       true);
+ 	  if (need_bnd_p)
+ 	    {
+-	      indirect_thunk_bnd_needed |= need_thunk;
++	      indirect_return_bnd_needed |= need_thunk;
+ 	      fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
+ 	    }
+ 	  else
+ 	    {
+-	      indirect_thunk_needed |= need_thunk;
++	      indirect_return_needed |= need_thunk;
+ 	      fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
+ 	    }
+ 	}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+index d2df8b874e0..eee230ca2f6 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+@@ -13,7 +13,7 @@ foo (void)
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk:" } } */
++/* { dg-final { scan-assembler "__x86_return_thunk:" } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times {\tpause} 2 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 2 } } */
+-- 
+2.16.3
+
diff --git a/community/gcc6/001_all_default-ssp-strong.patch b/community/gcc6/001_all_default-ssp-strong.patch
new file mode 100644
index 0000000000..95949eb00f
--- /dev/null
+++ b/community/gcc6/001_all_default-ssp-strong.patch
@@ -0,0 +1,215 @@
+# DP: Turn on -fstack-protector by default for C, C++, ObjC, ObjC++.
+# DP: Build libgcc using -fno-stack-protector.
+
+---
+ gcc/Makefile.in        |    2 ++
+ gcc/cp/lang-specs.h    |    6 +++---
+ gcc/doc/invoke.texi    |    4 ++++
+ gcc/gcc.c              |   18 ++++++++++++++----
+ gcc/objc/lang-specs.h  |   10 +++++-----
+ gcc/objcp/lang-specs.h |    8 ++++----
+ 6 files changed, 32 insertions(+), 16 deletions(-)
+
+Index: b/gcc/gcc.c
+===================================================================
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -858,6 +858,14 @@ proper position among the other output f
+ #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
+ #endif
+ 
++#ifndef SSP_DEFAULT_SPEC
++#ifdef TARGET_LIBC_PROVIDES_SSP
++#define SSP_DEFAULT_SPEC "%{!fno-stack-protector:%{!fstack-protector-all:%{!ffreestanding:%{!nostdlib:%{!fstack-protector:-fstack-protector-strong}}}}}"
++#else
++#define SSP_DEFAULT_SPEC ""
++#endif
++#endif
++
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+@@ -1057,6 +1065,7 @@ static const char *cc1_spec = CC1_SPEC;
+ static const char *cc1plus_spec = CC1PLUS_SPEC;
+ static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
+ static const char *link_ssp_spec = LINK_SSP_SPEC;
++static const char *ssp_default_spec = SSP_DEFAULT_SPEC;
+ static const char *asm_spec = ASM_SPEC;
+ static const char *asm_final_spec = ASM_FINAL_SPEC;
+ static const char *link_spec = LINK_SPEC;
+@@ -1112,7 +1121,7 @@ static const char *cpp_unique_options =
+ static const char *cpp_options =
+ "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
+  %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
+- %{undef} %{save-temps*:-fpch-preprocess}";
++ %{undef} %{save-temps*:-fpch-preprocess} %(ssp_default)";
+ 
+ /* This contains cpp options which are not passed when the preprocessor
+    output will be used by another program.  */
+@@ -1301,9 +1310,9 @@ static const struct compiler default_com
+       %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
+ 	  %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
+ 	    cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
+-	  %(cc1_options)}\
++	  %(cc1_options) %(ssp_default)}\
+       %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
+-	  cc1 %(cpp_unique_options) %(cc1_options)}}}\
++	  cc1 %(cpp_unique_options) %(cc1_options) %(ssp_default)}}}\
+       %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
+   {"-",
+    "%{!E:%e-E or -x required when input is from standard input}\
+@@ -1328,7 +1337,7 @@ static const struct compiler default_com
+ 					   %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
+   {".i", "@cpp-output", 0, 0, 0},
+   {"@cpp-output",
+-   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
++   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %(ssp_default) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {".s", "@assembler", 0, 0, 0},
+   {"@assembler",
+    "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
+@@ -1560,6 +1569,7 @@ static struct spec_list static_specs[] =
+   INIT_STATIC_SPEC ("cc1plus",			&cc1plus_spec),
+   INIT_STATIC_SPEC ("link_gcc_c_sequence",	&link_gcc_c_sequence_spec),
+   INIT_STATIC_SPEC ("link_ssp",			&link_ssp_spec),
++  INIT_STATIC_SPEC ("ssp_default",		&ssp_default_spec),
+   INIT_STATIC_SPEC ("endfile",			&endfile_spec),
+   INIT_STATIC_SPEC ("link",			&link_spec),
+   INIT_STATIC_SPEC ("lib",			&lib_spec),
+Index: b/gcc/cp/lang-specs.h
+===================================================================
+--- a/gcc/cp/lang-specs.h
++++ b/gcc/cp/lang-specs.h
+@@ -46,7 +46,7 @@ along with GCC; see the file COPYING3.
+ 		%(cpp_options) %2 -o %{save-temps*:%b.ii} %{!save-temps*:%g.ii} \n}\
+       cc1plus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.ii} %{!save-temps*:%g.ii}}\
+ 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
+-	%(cc1_options) %2\
++	%(cc1_options) %(ssp_default) %2\
+ 	%{!fsyntax-only:-o %g.s \
+ 	    %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\
+ 			       %W{o*:--output-pch=%*}}%V}}}}",
+@@ -58,11 +58,11 @@ along with GCC; see the file COPYING3.
+ 		%(cpp_options) %2 -o %{save-temps*:%b.ii} %{!save-temps*:%g.ii} \n}\
+       cc1plus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.ii} %{!save-temps*:%g.ii}}\
+ 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
+-	%(cc1_options) %2\
++	%(cc1_options) %(ssp_default) %2\
+        %{!fsyntax-only:%(invoke_as)}}}}",
+      CPLUSPLUS_CPP_SPEC, 0, 0},
+   {".ii", "@c++-cpp-output", 0, 0, 0},
+   {"@c++-cpp-output",
+    "%{!M:%{!MM:%{!E:\
+-    cc1plus -fpreprocessed %i %(cc1_options) %2\
++    cc1plus -fpreprocessed %i %(cc1_options) %(ssp_default) %2\
+     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+Index: b/gcc/params.def
+===================================================================
+--- a/gcc/params.def
++++ b/gcc/params.def
+@@ -673,7 +673,7 @@ DEFPARAM (PARAM_INTEGER_SHARE_LIMIT,
+ DEFPARAM (PARAM_SSP_BUFFER_SIZE,
+ 	  "ssp-buffer-size",
+ 	  "The lower bound for a buffer to be considered for stack smashing protection.",
+-	  8, 1, 0)
++	  4, 1, 0)
+ 
+ DEFPARAM (PARAM_MIN_SIZE_FOR_STACK_SHARING,
+ 	  "min-size-for-stack-sharing",
+Index: b/gcc/objc/lang-specs.h
+===================================================================
+--- a/gcc/objc/lang-specs.h
++++ b/gcc/objc/lang-specs.h
+@@ -29,9 +29,9 @@ along with GCC; see the file COPYING3.
+ 	%{traditional|traditional-cpp:\
+ %eGNU Objective C no longer supports traditional compilation}\
+ 	%{save-temps*|no-integrated-cpp:cc1obj -E %(cpp_options) -o %{save-temps*:%b.mi} %{!save-temps*:%g.mi} \n\
+-	    cc1obj -fpreprocessed %{save-temps*:%b.mi} %{!save-temps*:%g.mi} %(cc1_options) %{print-objc-runtime-info} %{gen-decls}}\
++	    cc1obj -fpreprocessed %{save-temps*:%b.mi} %{!save-temps*:%g.mi} %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}}\
+ 	%{!save-temps*:%{!no-integrated-cpp:\
+-	    cc1obj %(cpp_unique_options) %(cc1_options) %{print-objc-runtime-info} %{gen-decls}}}\
++	    cc1obj %(cpp_unique_options) %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}}}\
+         %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {"@objective-c-header",
+      "%{E|M|MM:cc1obj -E %{traditional|traditional-cpp:-traditional-cpp}\
+@@ -40,18 +40,18 @@ along with GCC; see the file COPYING3.
+ 	%{traditional|traditional-cpp:\
+ %eGNU Objective C no longer supports traditional compilation}\
+ 	%{save-temps*|no-integrated-cpp:cc1obj -E %(cpp_options) -o %{save-temps*:%b.mi} %{!save-temps*:%g.mi} \n\
+-	    cc1obj -fpreprocessed %b.mi %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++	    cc1obj -fpreprocessed %b.mi %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\
+                         -o %g.s %{!o*:--output-pch=%i.gch}\
+                         %W{o*:--output-pch=%*}%V}\
+ 	%{!save-temps*:%{!no-integrated-cpp:\
+-	    cc1obj %(cpp_unique_options) %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++	    cc1obj %(cpp_unique_options) %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\
+                         -o %g.s %{!o*:--output-pch=%i.gch}\
+                         %W{o*:--output-pch=%*}%V}}}}}", 0, 0, 0},
+   {".mi", "@objective-c-cpp-output", 0, 0, 0},
+   {"@objective-c-cpp-output",
+-     "%{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++     "%{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\
+ 			     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {"@objc-cpp-output",
+       "%nobjc-cpp-output is deprecated; please use objective-c-cpp-output instead\n\
+-       %{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++       %{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\
+ 			     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+Index: b/gcc/objcp/lang-specs.h
+===================================================================
+--- a/gcc/objcp/lang-specs.h
++++ b/gcc/objcp/lang-specs.h
+@@ -36,7 +36,7 @@ along with GCC; see the file COPYING3.
+ 		%(cpp_options) %2 -o %{save-temps*:%b.mii} %{!save-temps*:%g.mii} \n}\
+       cc1objplus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.mii} %{!save-temps*:%g.mii}}\
+ 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
+-	%(cc1_options) %2\
++	%(cc1_options) %(ssp_default) %2\
+         -o %g.s %{!o*:--output-pch=%i.gch} %W{o*:--output-pch=%*}%V}}}",
+      CPLUSPLUS_CPP_SPEC, 0, 0},
+   {"@objective-c++",
+@@ -46,16 +46,16 @@ along with GCC; see the file COPYING3.
+ 		%(cpp_options) %2 -o %{save-temps*:%b.mii} %{!save-temps*:%g.mii} \n}\
+       cc1objplus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.mii} %{!save-temps*:%g.mii}}\
+ 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
+-	%(cc1_options) %2\
++	%(cc1_options) %(ssp_default) %2\
+        %{!fsyntax-only:%(invoke_as)}}}}",
+      CPLUSPLUS_CPP_SPEC, 0, 0},
+   {".mii", "@objective-c++-cpp-output", 0, 0, 0},
+   {"@objective-c++-cpp-output",
+    "%{!M:%{!MM:%{!E:\
+-    cc1objplus -fpreprocessed %i %(cc1_options) %2\
++    cc1objplus -fpreprocessed %i %(cc1_options) %(ssp_default) %2\
+     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {"@objc++-cpp-output",
+    "%nobjc++-cpp-output is deprecated; please use objective-c++-cpp-output instead\n\
+     %{!M:%{!MM:%{!E:\
+-    cc1objplus -fpreprocessed %i %(cc1_options) %2\
++    cc1objplus -fpreprocessed %i %(cc1_options) %(ssp_default) %2\
+     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+Index: b/gcc/doc/invoke.texi
+===================================================================
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -9247,6 +9247,9 @@
+ The minimum size of variables taking part in stack slot sharing when not
+ optimizing. The default value is 32.
+ 
++The Alpine Linux default is "4", to increase
++the number of functions protected by the stack protector.
++
+ @item max-jump-thread-duplication-stmts
+ Maximum number of statements allowed in a block that needs to be
+ duplicated when threading jumps.
+@@ -10185,6 +10188,11 @@
+ Like @option{-fstack-protector} but includes additional functions to
+ be protected --- those that have local array definitions, or have
+ references to local frame addresses.
++
++NOTE: In Alpine Linux,
++@option{-fstack-protector-strong} is enabled by default for C,
++C++, ObjC, ObjC++, if none of @option{-fno-stack-protector},
++@option{-nostdlib}, nor @option{-ffreestanding} are found.
+ 
+ @item -fstack-protector-explicit
+ @opindex fstack-protector-explicit
diff --git a/community/gcc6/002_all_default-relro.patch b/community/gcc6/002_all_default-relro.patch
new file mode 100644
index 0000000000..c461017dc6
--- /dev/null
+++ b/community/gcc6/002_all_default-relro.patch
@@ -0,0 +1,33 @@
+# Turn on -Wl,-z,relro,-z,now by default.
+
+---
+ gcc/doc/invoke.texi |    3 +++
+ gcc/gcc.c           |    1 +
+ 2 files changed, 4 insertions(+), 0 deletions(-)
+
+Index: b/gcc/doc/invoke.texi
+===================================================================
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -11424,6 +11424,9 @@ For example, @option{-Wl,-Map,output.map
+ linker.  When using the GNU linker, you can also get the same effect with
+ @option{-Wl,-Map=output.map}.
+ 
++NOTE: In Alpine Linux, for LDFLAGS, the option
++@option{-Wl,-z,relro,now} is used.  To disable, use @option{-Wl,-z,norelro}.
++
+ @item -u @var{symbol}
+ @opindex u
+ Pretend the symbol @var{symbol} is undefined, to force linking of
+Index: b/gcc/gcc.c
+===================================================================
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -890,6 +890,7 @@ proper position among the other output f
+    "%{flto|flto=*:%<fcompare-debug*} \
+     %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
+    "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
++   "-z relro -z now " \
+    "%X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \
+     %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\
diff --git a/community/gcc6/003_all_default-fortify-source.patch b/community/gcc6/003_all_default-fortify-source.patch
new file mode 100644
index 0000000000..6ca8033430
--- /dev/null
+++ b/community/gcc6/003_all_default-fortify-source.patch
@@ -0,0 +1,40 @@
+# DP: Turn on -D_FORTIFY_SOURCE=2 by default for C, C++, ObjC, ObjC++,
+# DP: if the optimization level is > 0
+
+---
+ gcc/doc/invoke.texi          |    6 ++++++
+ gcc/c-family/c-cppbuiltin.c  |    3 +
+ 2 files changed, 9 insertions(+), 0 deletions(-)
+
+Index: b/gcc/doc/invoke.texi
+===================================================================
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -7840,6 +7840,12 @@ also turns on the following optimization
+ Please note the warning under @option{-fgcse} about
+ invoking @option{-O2} on programs that use computed gotos.
+ 
++NOTE: In Alpine Linux, @option{-D_FORTIFY_SOURCE=2} is
++set by default, and is activated when @option{-O} is set to 2 or higher.
++This enables additional compile-time and run-time checks for several libc
++functions.  To disable, specify either @option{-U_FORTIFY_SOURCE} or
++@option{-D_FORTIFY_SOURCE=0}.
++
+ @item -O3
+ @opindex O3
+ Optimize yet more.  @option{-O3} turns on all optimizations specified
+Index: b/gcc/c-family/c-cppbuiltin.c
+===================================================================
+--- a/gcc/c-family/c-cppbuiltin.c
++++ b/gcc/c-family/c-cppbuiltin.c
+@@ -1176,6 +1176,10 @@ c_cpp_builtins (cpp_reader *pfile)
+   builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
+   builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
+ 
++  /* Fortify Source enabled by default for optimization levels > 0 */
++  if (optimize)
++    builtin_define_with_int_value ("_FORTIFY_SOURCE", 2);
++
+   /* Misc.  */
+   if (flag_gnu89_inline)
+     cpp_define (pfile, "__GNUC_GNU_INLINE__");
diff --git a/community/gcc6/005_all_default-as-needed.patch b/community/gcc6/005_all_default-as-needed.patch
new file mode 100644
index 0000000000..ee4f7962a1
--- /dev/null
+++ b/community/gcc6/005_all_default-as-needed.patch
@@ -0,0 +1,241 @@
+# DP: On linux targets pass --as-needed by default to the linker, but always
+# DP: link the sanitizer libraries with --no-as-needed.
+
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -568,8 +568,11 @@ proper position among the other output f
+ #ifdef LIBTSAN_EARLY_SPEC
+ #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+-#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
+-		     "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
++#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION "}" \
++		     " %{!static-libtsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
++		     " -ltsan " \
++		     " %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
++		     " %{!static-libtsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBTSAN_LIBS
+ #else
+ #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
+--- a/gcc/config/gnu-user.h
++++ b/gcc/config/gnu-user.h
+@@ -124,13 +124,13 @@
+ #define LIBASAN_EARLY_SPEC "%{!shared:libasan_preinit%O%s} " \
+   "%{static-libasan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -lasan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-libasan:-lasan}"
++  LD_DYNAMIC_OPTION "}}%{!static-libasan:%{!fuse-ld=gold:--push-state} --no-as-needed -lasan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #undef LIBTSAN_EARLY_SPEC
+ #define LIBTSAN_EARLY_SPEC "%{static-libtsan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -ltsan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-libtsan:-ltsan}"
++  LD_DYNAMIC_OPTION "}}%{!static-libtsan:%{!fuse-ld=gold:--push-state} --no-as-needed -ltsan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #undef LIBLSAN_EARLY_SPEC
+ #define LIBLSAN_EARLY_SPEC "%{static-liblsan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -llsan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-liblsan:-llsan}"
++  LD_DYNAMIC_OPTION "}}%{!static-liblsan:%{!fuse-ld=gold:--push-state} --no-as-needed -llsan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #endif
+Index: b/gcc/config/aarch64/aarch64-linux.h
+===================================================================
+--- a/gcc/config/aarch64/aarch64-linux.h
++++ b/gcc/config/aarch64/aarch64-linux.h
+@@ -36,5 +36,6 @@
+ 
+ #define LINUX_TARGET_LINK_SPEC  "%{h*}		\
++   --as-needed					\
+    %{static:-Bstatic}				\
+    %{shared:-shared}				\
+    %{symbolic:-Bsymbolic}			\
+Index: b/gcc/config/ia64/linux.h
+===================================================================
+--- a/gcc/config/ia64/linux.h
++++ b/gcc/config/ia64/linux.h
+@@ -58,7 +58,7 @@ do {						\
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-ia64.so.2"
+ 
+ #undef LINK_SPEC
+-#define LINK_SPEC "\
++#define LINK_SPEC " --as-needed \
+   %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+Index: b/gcc/config/sparc/linux.h
+===================================================================
+--- a/gcc/config/sparc/linux.h
++++ b/gcc/config/sparc/linux.h
+@@ -86,7 +86,7 @@ extern const char *host_detect_local_cpu
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 
+ #undef  LINK_SPEC
+-#define LINK_SPEC "-m elf32_sparc %{shared:-shared} \
++#define LINK_SPEC "-m elf32_sparc --as-needed %{shared:-shared} \
+   %{!mno-relax:%{!r:-relax}} \
+   %{!shared: \
+     %{!static: \
+Index: b/gcc/config/s390/linux.h
+===================================================================
+--- a/gcc/config/s390/linux.h
++++ b/gcc/config/s390/linux.h
+@@ -65,7 +65,7 @@ along with GCC; see the file COPYING3.
+ 
+ #undef  LINK_SPEC
+ #define LINK_SPEC \
+-  "%{m31:-m elf_s390}%{m64:-m elf64_s390} \
++  "%{m31:-m elf_s390}%{m64:-m elf64_s390} --as-needed \
+    %{shared:-shared} \
+    %{!shared: \
+       %{static:-static} \
+Index: b/gcc/config/rs6000/linux64.h
+===================================================================
+--- a/gcc/config/rs6000/linux64.h
++++ b/gcc/config/rs6000/linux64.h
+@@ -466,12 +466,12 @@ extern int dot_symbols;
+ 					   " -m elf64ppc")
+ #endif
+ 
+-#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \
++#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " --as-needed %{!shared: %{!static: \
+   %{rdynamic:-export-dynamic} \
+   -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}} \
+   %(link_os_extra_spec32)"
+ 
+-#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " %{!shared: %{!static: \
++#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " --as-needed %{!shared: %{!static: \
+   %{rdynamic:-export-dynamic} \
+   -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}} \
+   %(link_os_extra_spec64)"
+Index: b/gcc/config/rs6000/sysv4.h
+===================================================================
+--- a/gcc/config/rs6000/sysv4.h
++++ b/gcc/config/rs6000/sysv4.h
+@@ -784,7 +784,7 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF
+   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, \
+ 			 MUSL_DYNAMIC_LINKER)
+ 
+-#define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
++#define LINK_OS_LINUX_SPEC "-m elf32ppclinux --as-needed %{!shared: %{!static: \
+   %{rdynamic:-export-dynamic} \
+   -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}"
+ 
+Index: b/gcc/config/i386/gnu-user64.h
+===================================================================
+--- a/gcc/config/i386/gnu-user64.h
++++ b/gcc/config/i386/gnu-user64.h
+@@ -57,5 +57,6 @@ see the files COPYING3 and COPYING.RUNTI
+                    %{" SPEC_32 ":-m " GNU_USER_LINK_EMULATION32 "} \
+                    %{" SPEC_X32 ":-m " GNU_USER_LINK_EMULATIONX32 "} \
++  --as-needed \
+   %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+Index: b/gcc/config/i386/gnu-user.h
+===================================================================
+--- a/gcc/config/i386/gnu-user.h
++++ b/gcc/config/i386/gnu-user.h
+@@ -74,7 +74,7 @@ along with GCC; see the file COPYING3.
+   { "link_emulation", GNU_USER_LINK_EMULATION },\
+   { "dynamic_linker", GNU_USER_DYNAMIC_LINKER }
+ 
+-#define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) %{shared:-shared} \
++#define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) --as-needed %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+       %{rdynamic:-export-dynamic} \
+Index: b/gcc/config/alpha/linux-elf.h
+===================================================================
+--- a/gcc/config/alpha/linux-elf.h
++++ b/gcc/config/alpha/linux-elf.h
+@@ -37,7 +37,7 @@ along with GCC; see the file COPYING3.
+ 
+ #define ELF_DYNAMIC_LINKER	GNU_USER_DYNAMIC_LINKER
+ 
+-#define LINK_SPEC "-m elf64alpha %{G*} %{relax:-relax}		\
++#define LINK_SPEC "-m elf64alpha --as-needed %{G*} %{relax:-relax}	\
+   %{O*:-O3} %{!O*:-O1}						\
+   %{shared:-shared}						\
+   %{!shared:							\
+Index: b/gcc/config/arm/linux-elf.h
+===================================================================
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -73,5 +73,6 @@
+      %{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \
+    -X \
++   --as-needed \
+    %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
+    SUBTARGET_EXTRA_LINK_SPEC
+ 
+Index: b/gcc/config/mips/gnu-user.h
+===================================================================
+--- a/gcc/config/mips/gnu-user.h
++++ b/gcc/config/mips/gnu-user.h
+@@ -55,6 +55,7 @@ along with GCC; see the file COPYING3.
+ #undef GNU_USER_TARGET_LINK_SPEC
+ #define GNU_USER_TARGET_LINK_SPEC "\
+   %{G*} %{EB} %{EL} %{mips*} %{shared} \
++ -as-needed \
+   %{!shared: \
+     %{!static: \
+       %{rdynamic:-export-dynamic} \
+Index: b/libjava/Makefile.am
+===================================================================
+--- a/libjava/Makefile.am
++++ b/libjava/Makefile.am
+@@ -627,14 +631,14 @@
+ 	rm .libs/libgcj_bc.so; \
+ 	mv .libs/libgcj_bc.so.1.0.0 .libs/libgcj_bc.so; \
+ 	$(libgcj_bc_dummy_LINK) -xc /dev/null -Wl,-soname,libgcj_bc.so.1 \
+-	-o .libs/libgcj_bc.so.1.0.0 -lgcj || exit; \
++	-o .libs/libgcj_bc.so.1.0.0 -Wl,--no-as-needed -lgcj || exit; \
+ 	rm .libs/libgcj_bc.so.1; \
+ 	$(LN_S) libgcj_bc.so.1.0.0 .libs/libgcj_bc.so.1
+ 
+ ## This rule creates the libgcj_bc library that is actually installed.
+ install/libgcj_bc.la: $(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_DEPENDENCIES) install/$(am__dirstamp)
+ 	$(libgcj_bc_la_LINK) $(am_libgcj_bc_la_rpath) $(libgcj_bc_la_LDFLAGS) \
+-	$(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_LIBADD) $(LIBS)
++	$(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_LIBADD) $(LIBS) -Wl,--no-as-needed -lgcj
+ 
+ ## Note that property_files is defined in sources.am.
+ propertyo_files = $(patsubst classpath/resource/%,%,$(addsuffix .lo,$(property_files)))
+@@ -762,7 +766,7 @@
+ 	rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so; \
+ 	mv $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so; \
+ 	$(libgcj_bc_dummy_LINK) -xc /dev/null -Wl,-soname,libgcj_bc.so.1 \
+-	-o $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 -lgcj || exit; \
++	-o $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 -Wl,--no-as-needed -lgcj || exit; \
+ 	rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1; \
+ 	$(LN_S) libgcj_bc.so.1.0.0 $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1; \
+ 	rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.la;
+ 
+Index: b/libjava/Makefile.in
+===================================================================
+--- a/libjava/Makefile.in
++++ b/libjava/Makefile.in
+@@ -10644,13 +10648,13 @@
+ 	rm .libs/libgcj_bc.so; \
+ 	mv .libs/libgcj_bc.so.1.0.0 .libs/libgcj_bc.so; \
+ 	$(libgcj_bc_dummy_LINK) -xc /dev/null -Wl,-soname,libgcj_bc.so.1 \
+-	-o .libs/libgcj_bc.so.1.0.0 -lgcj || exit; \
++	-o .libs/libgcj_bc.so.1.0.0 -Wl,--no-as-needed -lgcj || exit; \
+ 	rm .libs/libgcj_bc.so.1; \
+ 	$(LN_S) libgcj_bc.so.1.0.0 .libs/libgcj_bc.so.1
+ 
+ install/libgcj_bc.la: $(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_DEPENDENCIES) install/$(am__dirstamp)
+ 	$(libgcj_bc_la_LINK) $(am_libgcj_bc_la_rpath) $(libgcj_bc_la_LDFLAGS) \
+-	$(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_LIBADD) $(LIBS)
++	$(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_LIBADD) $(LIBS) -Wl,--no-as-needed -lgcj
+ 
+ $(propertyo_files): %.lo: classpath/resource/%
+ 	$(mkinstalldirs) `dirname $@`; \
+@@ -12494,7 +12498,7 @@
+ @USE_LIBGCJ_BC_TRUE@	rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so; \
+ @USE_LIBGCJ_BC_TRUE@	mv $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so; \
+ @USE_LIBGCJ_BC_TRUE@	$(libgcj_bc_dummy_LINK) -xc /dev/null -Wl,-soname,libgcj_bc.so.1 \
+-@USE_LIBGCJ_BC_TRUE@	-o $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 -lgcj || exit; \
++@USE_LIBGCJ_BC_TRUE@	-o $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 -Wl,--no-as-needed -lgcj || exit; \
+ @USE_LIBGCJ_BC_TRUE@	rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1; \
+ @USE_LIBGCJ_BC_TRUE@	$(LN_S) libgcj_bc.so.1.0.0 $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1; \
+ @USE_LIBGCJ_BC_TRUE@	rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.la;
+
diff --git a/community/gcc6/011_all_default-warn-format-security.patch b/community/gcc6/011_all_default-warn-format-security.patch
new file mode 100644
index 0000000000..a58383a8ec
--- /dev/null
+++ b/community/gcc6/011_all_default-warn-format-security.patch
@@ -0,0 +1,43 @@
+Enable -Wformat and -Wformat-security by default.
+
+
+--- a/gcc/c-family/c.opt
++++ b/gcc/c-family/c.opt
+@@ -412,7 +412,7 @@ C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning LangEnabledBy(C ObjC C++ O
+ Warn about format strings that are not literals
+ 
+ Wformat-security
+-C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
++C ObjC C++ ObjC++ Var(warn_format_security) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+ Warn about possible security problems with format functions
+ 
+ Wformat-y2k
+@@ -424,7 +424,7 @@ C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning LangEnabledBy(C ObjC C++
+ Warn about zero-length formats
+ 
+ Wformat=
+-C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0)
++C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0)
+ Warn about printf/scanf/strftime/strfmon format string anomalies
+ 
+ Wignored-qualifiers
+--- a/gcc/doc/gcc.info
++++ b/gcc/doc/gcc.info
+@@ -3451,6 +3451,8 @@ compiler warns that an unrecognized option is present.
+           '-Wno-format-contains-nul', '-Wno-format-extra-args', and
+           '-Wno-format-zero-length'.  '-Wformat' is enabled by '-Wall'.
+ 
++          This option is enabled by default in Alpine Linux.
++
+      '-Wno-format-contains-nul'
+           If '-Wformat' is specified, do not warn about format strings
+           that contain NUL bytes.
+@@ -3496,6 +3498,8 @@ compiler warns that an unrecognized option is present.
+           future warnings may be added to '-Wformat-security' that are
+           not included in '-Wformat-nonliteral'.)
+ 
++          This option is enabled by default in Alpine Linux.
++
+      '-Wformat-y2k'
+           If '-Wformat' is specified, also warn about 'strftime' formats
+           that may yield only a two-digit year.
diff --git a/community/gcc6/012_all_default-warn-trampolines.patch b/community/gcc6/012_all_default-warn-trampolines.patch
new file mode 100644
index 0000000000..9ab4378d4d
--- /dev/null
+++ b/community/gcc6/012_all_default-warn-trampolines.patch
@@ -0,0 +1,25 @@
+Enable -Wtrampolines by default.
+
+
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -648,7 +648,7 @@ Common Var(warn_system_headers) Warning
+ Do not suppress warnings from system headers
+ 
+ Wtrampolines
+-Common Var(warn_trampolines) Warning
++Common Var(warn_trampolines) Init(1) Warning
+ Warn whenever a trampoline is generated
+ 
+ Wtype-limits
+--- a/gcc/doc/gcc.info
++++ b/gcc/doc/gcc.info
+@@ -4021,6 +4021,8 @@ compiler warns that an unrecognized option is present.
+      and thus requires the stack to be made executable in order for the
+      program to work properly.
+ 
++     This warning is enabled by default in Gentoo.
++
+ '-Wfloat-equal'
+      Warn if floating-point values are used in equality comparisons.
+ 
diff --git a/community/gcc6/020_all_msgfmt-libstdc++-link.patch b/community/gcc6/020_all_msgfmt-libstdc++-link.patch
new file mode 100644
index 0000000000..a70ea50a07
--- /dev/null
+++ b/community/gcc6/020_all_msgfmt-libstdc++-link.patch
@@ -0,0 +1,39 @@
+Ensure that msgfmt doesn't encounter problems during gcc bootstrapping.
+
+Solves error messages like the following:
+
+msgfmt: /var/tmp/portage/sys-devel/gcc-4.1.2/work/build/./gcc/libgcc_s.so.1: version `GCC_4.2.0' not found (required by /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/libstdc++.so.6)
+
+The libgcc_s.so used during build doesn't satisfy the needs of the
+libstdc++.so that msgfmt is linked against. On the other hand, msgfmt
+is used as a stand-alone application here, and what library it uses
+behind the scenes is of no concern to the gcc build process.
+Therefore, simply invoking it "as usual", i.e. without any special
+library path, will make it work as expected here.
+
+2011-09-19 Martin von Gagern
+
+References:
+https://bugs.gentoo.org/372377
+https://bugs.gentoo.org/295480
+
+--- gcc-4.1.2.orig/libstdc++-v3/po/Makefile.am
++++ gcc-4.1.2/libstdc++-v3/po/Makefile.am
+@@ -39,6 +39,7 @@ MSGFMT = msgfmt
+ EXTRA_DIST = string_literals.cc POTFILES.in $(PACKAGE).pot $(LOCALE_IN)
+ 
+ .po.mo:
++	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
+--- gcc-4.1.2.orig/libstdc++-v3/po/Makefile.in
++++ gcc-4.1.2/libstdc++-v3/po/Makefile.in
+@@ -419,6 +419,7 @@ uninstall-am: uninstall-info-am
+ 
+ 
+ .po.mo:
++	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
diff --git a/community/gcc6/050_all_libiberty-asprintf.patch b/community/gcc6/050_all_libiberty-asprintf.patch
new file mode 100644
index 0000000000..bee0c4c237
--- /dev/null
+++ b/community/gcc6/050_all_libiberty-asprintf.patch
@@ -0,0 +1,18 @@
+2008-07-25  Magnus Granberg  <zorry@ume.nu>
+
+	* include/libiberty.h (asprintf): Don't declare if defined as a macro
+
+--- a/include/libiberty.h
++++ b/include/libiberty.h
+@@ -609,8 +609,11 @@ extern int pwait (int, int *, int);
+ /* Like sprintf but provides a pointer to malloc'd storage, which must
+    be freed by the caller.  */
+ 
++/* asprintf may be declared as a macro by glibc with __USE_FORTIFY_LEVEL.  */
++#ifndef asprintf
+ extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2;
+ #endif
++#endif
+ 
+ #if !HAVE_DECL_VASPRINTF
+ /* Like vsprintf but provides a pointer to malloc'd storage, which
diff --git a/community/gcc6/051_all_libiberty-pic.patch b/community/gcc6/051_all_libiberty-pic.patch
new file mode 100644
index 0000000000..b6160a7307
--- /dev/null
+++ b/community/gcc6/051_all_libiberty-pic.patch
@@ -0,0 +1,10 @@
+--- a/libiberty/Makefile.in
++++ b/libiberty/Makefile.in
+@@ -246,6 +246,7 @@ $(TARGETLIB): $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS)
+ 	  $(AR) $(AR_FLAGS) $(TARGETLIB) \
+ 	    $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS); \
+ 	  $(RANLIB) $(TARGETLIB); \
++	  cp $(TARGETLIB) ../ ; \
+ 	  cd ..; \
+ 	else true; fi
+ 
diff --git a/community/gcc6/053_all_libitm-no-fortify-source.patch b/community/gcc6/053_all_libitm-no-fortify-source.patch
new file mode 100644
index 0000000000..5ab15afc37
--- /dev/null
+++ b/community/gcc6/053_all_libitm-no-fortify-source.patch
@@ -0,0 +1,27 @@
+https://bugs.gentoo.org/508852
+https://gcc.gnu.org/PR61164
+
+2014-04-27  Magnus Granberg  <zorry@gentoo.org>
+
+	#508852
+	* libitm/configure.tgt: Disable FORTIFY
+
+--- a/libitm/configure.tgt
++++ b/libitm/configure.tgt
+@@ -43,6 +43,16 @@ if test "$gcc_cv_have_tls" = yes ; then
+   esac
+ fi
+ 
++# FIXME: error: inlining failed in call to always_inline 
++# ‘int vfprintf(FILE*, const char*, __va_list_tag*)’
++# : function body can be overwritten at link time
++# Disable Fortify in libitm for now. #508852
++case "${target}" in
++    *-*-linux*)
++	XCFLAGS="${XCFLAGS} -U_FORTIFY_SOURCE"
++	;;
++esac
++
+ # Map the target cpu to an ARCH sub-directory.  At the same time,
+ # work out any special compilation flags as necessary.
+ case "${target_cpu}" in
diff --git a/community/gcc6/067_all_gcc-poison-system-directories.patch b/community/gcc6/067_all_gcc-poison-system-directories.patch
new file mode 100644
index 0000000000..1036716175
--- /dev/null
+++ b/community/gcc6/067_all_gcc-poison-system-directories.patch
@@ -0,0 +1,194 @@
+http://cgit.openembedded.org/openembedded-core/plain/meta/recipes-devtools/gcc/gcc-6.1/0010-gcc-poison-system-directories.patch
+
+From d76250323dad69212c958e4857a98d99ab51a39e Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 08:59:00 +0400
+Subject: [PATCH 10/46] gcc: poison-system-directories
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Inappropriate [distribution: codesourcery]
+---
+ gcc/common.opt      |  4 ++++
+ gcc/config.in       |  6 ++++++
+ gcc/configure       | 16 ++++++++++++++++
+ gcc/configure.ac    | 10 ++++++++++
+ gcc/doc/invoke.texi |  9 +++++++++
+ gcc/gcc.c           |  2 ++
+ gcc/incpath.c       | 19 +++++++++++++++++++
+ 7 files changed, 66 insertions(+)
+
+diff --git a/gcc/common.opt b/gcc/common.opt
+index 67048db..733185c 100644
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -659,6 +659,10 @@ Wreturn-local-addr
+ Common Var(warn_return_local_addr) Init(1) Warning
+ Warn about returning a pointer/reference to a local or temporary variable.
+ 
++Wpoison-system-directories
++Common Var(flag_poison_system_directories) Init(1) Warning
++Warn for -I and -L options using system directories if cross compiling
++
+ Wshadow
+ Common Var(warn_shadow) Warning
+ Warn when one local variable shadows another.
+diff --git a/gcc/config.in b/gcc/config.in
+index 115cb61..105b30f 100644
+--- a/gcc/config.in
++++ b/gcc/config.in
+@@ -187,6 +187,12 @@
+ #endif
+ 
+ 
++/* Define to warn for use of native system header directories */
++#ifndef USED_FOR_TARGET
++#undef ENABLE_POISON_SYSTEM_DIRECTORIES
++#endif
++
++
+ /* Define if you want all operations on RTL (the basic data structure of the
+    optimizer and back end) to be checked for dynamic type safety at runtime.
+    This is quite expensive. */
+diff --git a/gcc/configure b/gcc/configure
+index 1c6e340..8f83152 100755
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -942,6 +942,7 @@ with_system_zlib
+ enable_maintainer_mode
+ enable_link_mutex
+ enable_version_specific_runtime_libs
++enable_poison_system_directories
+ enable_plugin
+ enable_host_shared
+ enable_libquadmath_support
+@@ -1681,6 +1682,8 @@ Optional Features:
+   --enable-version-specific-runtime-libs
+                           specify that runtime libraries should be installed
+                           in a compiler-specific directory
++  --enable-poison-system-directories
++                          warn for use of native system header directories
+   --enable-plugin         enable plugin support
+   --enable-host-shared    build host code as shared libraries
+   --disable-libquadmath-support
+@@ -28908,6 +28911,19 @@ if test "${enable_version_specific_runtime_libs+set}" = set; then :
+ fi
+ 
+ 
++# Check whether --enable-poison-system-directories was given.
++if test "${enable_poison_system_directories+set}" = set; then :
++  enableval=$enable_poison_system_directories;
++else
++  enable_poison_system_directories=no
++fi
++
++if test "x${enable_poison_system_directories}" = "xyes"; then
++
++$as_echo "#define ENABLE_POISON_SYSTEM_DIRECTORIES 1" >>confdefs.h
++
++fi
++
+ # Substitute configuration variables
+ 
+ 
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 6c1dcd9..0fccaef 100644
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -5861,6 +5861,16 @@ AC_ARG_ENABLE(version-specific-runtime-libs,
+                 [specify that runtime libraries should be
+                  installed in a compiler-specific directory])])
+ 
++AC_ARG_ENABLE([poison-system-directories],
++             AS_HELP_STRING([--enable-poison-system-directories],
++                            [warn for use of native system header directories]),,
++             [enable_poison_system_directories=no])
++if test "x${enable_poison_system_directories}" = "xyes"; then
++  AC_DEFINE([ENABLE_POISON_SYSTEM_DIRECTORIES],
++           [1],
++           [Define to warn for use of native system header directories])
++fi
++
+ # Substitute configuration variables
+ AC_SUBST(subdirs)
+ AC_SUBST(srcdir)
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index 821f8fd..8bb49e7 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -284,6 +284,7 @@ Objective-C and Objective-C++ Dialects}.
+ -Wparentheses -Wno-pedantic-ms-format @gol
+ -Wplacement-new -Wplacement-new=@var{n} @gol
+ -Wpointer-arith  -Wno-pointer-to-int-cast @gol
++-Wno-poison-system-directories @gol
+ -Wno-pragmas -Wredundant-decls  -Wno-return-local-addr @gol
+ -Wreturn-type  -Wsequence-point  -Wshadow  -Wno-shadow-ivar @gol
+ -Wshift-overflow -Wshift-overflow=@var{n} @gol
+@@ -4723,6 +4724,14 @@ made up of data only and thus requires no special treatment.  But, for
+ most targets, it is made up of code and thus requires the stack to be
+ made executable in order for the program to work properly.
+ 
++@item -Wno-poison-system-directories
++@opindex Wno-poison-system-directories
++Do not warn for @option{-I} or @option{-L} options using system
++directories such as @file{/usr/include} when cross compiling.  This
++option is intended for use in chroot environments when such
++directories contain the correct headers and libraries for the target
++system rather than the host.
++
+ @item -Wfloat-equal
+ @opindex Wfloat-equal
+ @opindex Wno-float-equal
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+index 1af5920..4cfef7f 100644
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -1017,6 +1017,8 @@ proper position among the other output files.  */
+    "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
+    "%X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \
++    %{Wno-poison-system-directories:--no-poison-system-directories} \
++    %{Werror=poison-system-directories:--error-poison-system-directories} \
+     %{static:} %{L*} %(mfwrap) %(link_libgcc) " \
+     VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \
+     %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
+diff --git a/gcc/incpath.c b/gcc/incpath.c
+index ea40f4a..856da41 100644
+--- a/gcc/incpath.c
++++ b/gcc/incpath.c
+@@ -26,6 +26,7 @@
+ #include "intl.h"
+ #include "incpath.h"
+ #include "cppdefault.h"
++#include "diagnostic-core.h"
+ 
+ /* Microsoft Windows does not natively support inodes.
+    VMS has non-numeric inodes.  */
+@@ -381,6 +382,24 @@ merge_include_chains (const char *sysroot, cpp_reader *pfile, int verbose)
+ 	}
+       fprintf (stderr, _("End of search list.\n"));
+     }
++
++#ifdef ENABLE_POISON_SYSTEM_DIRECTORIES
++  if (flag_poison_system_directories)
++    {
++       struct cpp_dir *p;
++
++       for (p = heads[QUOTE]; p; p = p->next)
++         {
++          if ((!strncmp (p->name, "/usr/include", 12))
++              || (!strncmp (p->name, "/usr/local/include", 18))
++              || (!strncmp (p->name, "/usr/X11R6/include", 18)))
++            warning (OPT_Wpoison_system_directories,
++                     "include location \"%s\" is unsafe for "
++                     "cross-compilation",
++                     p->name);
++         }
++    }
++#endif
+ }
+ 
+ /* Use given -I paths for #include "..." but not #include <...>, and
+-- 
+2.8.2
+
diff --git a/community/gcc6/090_all_pr55930-dependency-tracking.patch b/community/gcc6/090_all_pr55930-dependency-tracking.patch
new file mode 100644
index 0000000000..a8743e08c4
--- /dev/null
+++ b/community/gcc6/090_all_pr55930-dependency-tracking.patch
@@ -0,0 +1,18 @@
+libatomic build failure if configured with --disable-dependency-tracking
+load_n.c:115:1: fatal error: opening dependency file .deps/load_1_.lo.Ppo: No such file or directory
+
+https://bugs.gentoo.org/463463
+http://gcc.gnu.org/PR55930
+
+--- a/libatomic/Makefile.in
++++ b/libatomic/Makefile.in
+@@ -298,7 +298,8 @@ PAT_N = $(word 2,$(PAT_SPLIT))
+ PAT_S = $(word 3,$(PAT_SPLIT))
+ IFUNC_DEF = -DIFUNC_ALT=$(PAT_S)
+ IFUNC_OPT = $(word $(PAT_S),$(IFUNC_OPTIONS))
+-M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
++@AMDEP_TRUE@M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
++@AMDEP_FALSE@M_DEPS =
+ M_SIZE = -DN=$(PAT_N)
+ M_IFUNC = $(if $(PAT_S),$(IFUNC_DEF) $(IFUNC_OPT))
+ M_FILE = $(PAT_BASE)_n.c
diff --git a/community/gcc6/201-cilkrts.patch b/community/gcc6/201-cilkrts.patch
new file mode 100644
index 0000000000..4aac10d6d9
--- /dev/null
+++ b/community/gcc6/201-cilkrts.patch
@@ -0,0 +1,59 @@
+From 594e3c1ab576daddeb86015efc8b1677020b1878 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Sat, 24 Oct 2015 20:39:30 +0000
+Subject: [PATCH 1/6] cilkrts
+
+---
+ libcilkrts/runtime/os-unix.c | 22 +++++++---------------
+ 1 file changed, 7 insertions(+), 15 deletions(-)
+
+diff --git a/libcilkrts/runtime/os-unix.c b/libcilkrts/runtime/os-unix.c
+index cb582dd..e43d7d5 100644
+--- a/libcilkrts/runtime/os-unix.c
++++ b/libcilkrts/runtime/os-unix.c
+@@ -51,6 +51,7 @@
+ #if defined __linux__
+ #   include <sys/sysinfo.h>
+ #   include <sys/syscall.h>
++#   include <sched.h>
+ #elif defined __APPLE__
+ #   include <sys/sysctl.h>
+     // Uses sysconf(_SC_NPROCESSORS_ONLN) in verbose output
+@@ -400,28 +401,19 @@ COMMON_SYSDEP void __cilkrts_sleep(void)
+ 
+ COMMON_SYSDEP void __cilkrts_yield(void)
+ {
+-#if __APPLE__ || __FreeBSD__ || __VXWORKS__
+-    // On MacOS, call sched_yield to yield quantum.  I'm not sure why we
+-    // don't do this on Linux also.
+-    sched_yield();
+-#elif defined(__DragonFly__)
+-    // On DragonFly BSD, call sched_yield to yield quantum.
+-    sched_yield();
+-#elif defined(__MIC__)
++#if defined(__MIC__)
+     // On MIC, pthread_yield() really trashes things.  Arch's measurements
+     // showed that calling _mm_delay_32() (or doing nothing) was a better
+     // option.  Delaying 1024 clock cycles is a reasonable compromise between
+     // giving up the processor and latency starting up when work becomes
+     // available
+     _mm_delay_32(1024);
+-#elif defined(__ANDROID__) || (defined(__sun__) && defined(__svr4__))
+-    // On Android and Solaris, call sched_yield to yield quantum.  I'm not
+-    // sure why we don't do this on Linux also.
+-    sched_yield();
+-#else
+-    // On Linux, call pthread_yield (which in turn will call sched_yield)
+-    // to yield quantum.
++#elif defined(__sun__) && !defined(__svr4__)
++    // On old SunOS call pthread_yield to yield a quantum.
+     pthread_yield();
++#else
++    // On other platforms call sched_yield to yield a quantum.
++    sched_yield();
+ #endif
+ }
+ 
+-- 
+2.8.1
+
diff --git a/community/gcc6/203-libgcc_s.patch b/community/gcc6/203-libgcc_s.patch
new file mode 100644
index 0000000000..c74351c713
--- /dev/null
+++ b/community/gcc6/203-libgcc_s.patch
@@ -0,0 +1,56 @@
+From 9e3eab51e518018d9d99b3123598b1e2322a6af3 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Sat, 24 Oct 2015 20:09:53 +0000
+Subject: [PATCH 3/6] libgcc_s
+
+---
+ gcc/config/i386/i386.c       | 4 ++--
+ libgcc/config/i386/cpuinfo.c | 6 +++---
+ libgcc/config/i386/t-linux   | 2 +-
+ 3 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 3d044e8..82523e1 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -40269,10 +40269,10 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget,
+     {
+     case IX86_BUILTIN_CPU_INIT:
+       {
+-	/* Make it call __cpu_indicator_init in libgcc. */
++	/* Make it call __cpu_indicator_init_local in libgcc.a. */
+ 	tree call_expr, fndecl, type;
+         type = build_function_type_list (integer_type_node, NULL_TREE); 
+-	fndecl = build_fn_decl ("__cpu_indicator_init", type);
++	fndecl = build_fn_decl ("__cpu_indicator_init_local", type);
+ 	call_expr = build_call_expr (fndecl, 0); 
+ 	return expand_expr (call_expr, target, mode, EXPAND_NORMAL);
+       }
+diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c
+index 8c2248d..6c82f15 100644
+--- a/libgcc/config/i386/cpuinfo.c
++++ b/libgcc/config/i386/cpuinfo.c
+@@ -485,7 +485,7 @@ __cpu_indicator_init (void)
+   return 0;
+ }
+ 
+-#if defined SHARED && defined USE_ELF_SYMVER
+-__asm__ (".symver __cpu_indicator_init, __cpu_indicator_init@GCC_4.8.0");
+-__asm__ (".symver __cpu_model, __cpu_model@GCC_4.8.0");
++#ifndef SHARED
++int __cpu_indicator_init_local (void)
++  __attribute__ ((weak, alias ("__cpu_indicator_init")));
+ #endif
+diff --git a/libgcc/config/i386/t-linux b/libgcc/config/i386/t-linux
+index 11bb46e..4f47f7b 100644
+--- a/libgcc/config/i386/t-linux
++++ b/libgcc/config/i386/t-linux
+@@ -3,4 +3,4 @@
+ # t-slibgcc-elf-ver and t-linux
+ SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/i386/libgcc-glibc.ver
+ 
+-HOST_LIBGCC2_CFLAGS += -mlong-double-80 -DUSE_ELF_SYMVER
++HOST_LIBGCC2_CFLAGS += -mlong-double-80
+-- 
+2.8.1
+
diff --git a/community/gcc6/204-linux_libc_has_function.patch b/community/gcc6/204-linux_libc_has_function.patch
new file mode 100644
index 0000000000..2dcedc3a7a
--- /dev/null
+++ b/community/gcc6/204-linux_libc_has_function.patch
@@ -0,0 +1,25 @@
+From edec78452d693fb524daa9a6efd45c850b27b25c Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Fri, 6 Nov 2015 23:59:20 +0000
+Subject: [PATCH 4/6] linux_libc_has_function
+
+---
+ gcc/config/linux.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/config/linux.c b/gcc/config/linux.c
+index 250296b..16c3768 100644
+--- a/gcc/config/linux.c
++++ b/gcc/config/linux.c
+@@ -26,7 +26,7 @@ along with GCC; see the file COPYING3.  If not see
+ bool
+ linux_libc_has_function (enum function_class fn_class)
+ {
+-  if (OPTION_GLIBC)
++  if (OPTION_GLIBC || OPTION_MUSL)
+     return true;
+   if (OPTION_BIONIC)
+     if (fn_class == function_c94
+-- 
+2.8.1
+
diff --git a/community/gcc6/205-nopie.patch b/community/gcc6/205-nopie.patch
new file mode 100644
index 0000000000..e3da94d105
--- /dev/null
+++ b/community/gcc6/205-nopie.patch
@@ -0,0 +1,75 @@
+From b6015aca9c9cc83739fd0ed637a835119b2c4e34 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Sat, 7 Nov 2015 02:08:05 +0000
+Subject: [PATCH 5/6] nopie
+
+---
+ gcc/configure    | 27 +++++++++++++++++++++++++++
+ gcc/configure.ac | 13 +++++++++++++
+ 2 files changed, 40 insertions(+)
+
+diff --git a/gcc/configure b/gcc/configure
+index 1c6e340..7e8b5d6 100755
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -29390,6 +29390,33 @@ fi
+ $as_echo "$gcc_cv_no_pie" >&6; }
+ if test "$gcc_cv_no_pie" = "yes"; then
+   NO_PIE_FLAG="-no-pie"
++else
++  # Check if -nopie works.
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -nopie option" >&5
++$as_echo_n "checking for -nopie option... " >&6; }
++if test "${gcc_cv_nopie+set}" = set; then :
++  $as_echo_n "(cached) " >&6
++else
++  saved_LDFLAGS="$LDFLAGS"
++     LDFLAGS="$LDFLAGS -nopie"
++     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++int main(void) {return 0;}
++_ACEOF
++if ac_fn_cxx_try_link "$LINENO"; then :
++  gcc_cv_nopie=yes
++else
++  gcc_cv_nopie=no
++fi
++rm -f core conftest.err conftest.$ac_objext \
++    conftest$ac_exeext conftest.$ac_ext
++     LDFLAGS="$saved_LDFLAGS"
++fi
++{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_nopie" >&5
++$as_echo "$gcc_cv_nopie" >&6; }
++  if test "$gcc_cv_nopie" = "yes"; then
++    NO_PIE_FLAG="-nopie"
++  fi
+ fi
+ 
+ 
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 6c1dcd9..0ca7647 100644
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -6098,6 +6098,19 @@ AC_CACHE_CHECK([for -no-pie option],
+    LDFLAGS="$saved_LDFLAGS"])
+ if test "$gcc_cv_no_pie" = "yes"; then
+   NO_PIE_FLAG="-no-pie"
++else
++  # Check if -nopie works.
++  AC_CACHE_CHECK([for -nopie option],
++    [gcc_cv_nopie],
++    [saved_LDFLAGS="$LDFLAGS"
++     LDFLAGS="$LDFLAGS -nopie"
++     AC_LINK_IFELSE([int main(void) {return 0;}],
++       [gcc_cv_nopie=yes],
++       [gcc_cv_nopie=no])
++     LDFLAGS="$saved_LDFLAGS"])
++  if test "$gcc_cv_nopie" = "yes"; then
++    NO_PIE_FLAG="-nopie"
++  fi
+ fi
+ AC_SUBST([NO_PIE_FLAG])
+ 
+-- 
+2.8.1
+
diff --git a/community/gcc6/207-static-pie.patch b/community/gcc6/207-static-pie.patch
new file mode 100644
index 0000000000..9355c584b5
--- /dev/null
+++ b/community/gcc6/207-static-pie.patch
@@ -0,0 +1,40 @@
+diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h
+index b0bf40a..d4b56fe 100644
+--- a/gcc/config/gnu-user.h
++++ b/gcc/config/gnu-user.h
+@@ -51,10 +51,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #if defined HAVE_LD_PIE
+ #define GNU_USER_TARGET_STARTFILE_SPEC \
+   "%{!shared: %{pg|p|profile:gcrt1.o%s;: \
+-    %{" PIE_SPEC ":Scrt1.o%s} %{" NO_PIE_SPEC ":crt1.o%s}}} \
+-   crti.o%s %{static:crtbeginT.o%s;: %{shared:crtbeginS.o%s} \
++    %{" PIE_SPEC ":%{static:rcrt1.o%s;:Scrt1.o%s}} %{" NO_PIE_SPEC ":crt1.o%s}}} \
++   crti.o%s %{shared:crtbeginS.o%s;: \
+ 	      %{" PIE_SPEC ":crtbeginS.o%s} \
+-	      %{" NO_PIE_SPEC ":crtbegin.o%s}} \
++	      %{" NO_PIE_SPEC ":%{static:crtbeginT.o%s;:crtbegin.o%s}}} \
+    %{fvtable-verify=none:%s; \
+      fvtable-verify=preinit:vtv_start_preinit.o%s; \
+      fvtable-verify=std:vtv_start.o%s} \
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+index 0208d61..731564e 100644
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -870,7 +870,7 @@ proper position among the other output files.  */
+ #endif
+ 
+ #ifdef ENABLE_DEFAULT_PIE
+-#define NO_PIE_SPEC		"no-pie|static"
++#define NO_PIE_SPEC		"no-pie"
+ #define PIE_SPEC		NO_PIE_SPEC "|r|shared:;"
+ #define NO_FPIE1_SPEC		"fno-pie"
+ #define FPIE1_SPEC		NO_FPIE1_SPEC ":;"
+@@ -916,7 +916,7 @@ proper position among the other output files.  */
+ #ifndef LINK_PIE_SPEC
+ #ifdef HAVE_LD_PIE
+ #ifndef LD_PIE_SPEC
+-#define LD_PIE_SPEC "-pie"
++#define LD_PIE_SPEC "-pie %{static:--no-dynamic-linker -Bsymbolic}"
+ #endif
+ #else
+ #define LD_PIE_SPEC ""
diff --git a/community/gcc6/300-main-gcc-add-musl-s390x-dynamic-linker.patch b/community/gcc6/300-main-gcc-add-musl-s390x-dynamic-linker.patch
new file mode 100644
index 0000000000..2419578715
--- /dev/null
+++ b/community/gcc6/300-main-gcc-add-musl-s390x-dynamic-linker.patch
@@ -0,0 +1,32 @@
+From be841c16dd544553c67faac79bd4cc3cd10a1dc0 Mon Sep 17 00:00:00 2001
+From: "Tuan M. Hoang" <tmhoang@flatglobe.org>
+Date: Mon, 21 Nov 2016 01:42:16 +0700
+Subject: [PATCH] main/gcc: add musl s390x dynamic linker
+
+---
+ gcc/config/s390/linux.h | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/gcc/config/s390/linux.h b/gcc/config/s390/linux.h
+index 1e3ed35..a244214 100644
+--- a/gcc/config/s390/linux.h
++++ b/gcc/config/s390/linux.h
+@@ -63,6 +63,15 @@ along with GCC; see the file COPYING3.  If not see
+ #define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
+ #define GLIBC_DYNAMIC_LINKER64 "/lib/ld64.so.1"
+ 
++#undef MUSL_DYNAMIC_LINKER
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-s390x.so.1"
++#undef MUSL_DYNAMIC_LINKER32
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-s390x.so.1"
++#undef MUSL_DYNAMIC_LINKER64
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-s390x.so.1"
++#undef MUSL_DYNAMIC_LINKERX32
++#define MUSL_DYNAMIC_LINKERX32 "/lib/ld-musl-s390x.so.1"
++
+ #undef  LINK_SPEC
+ #define LINK_SPEC \
+   "%{m31:-m elf_s390}%{m64:-m elf64_s390} --as-needed \
+-- 
+2.10.2
+
diff --git a/community/gcc6/310-build-gcj-s390x.patch b/community/gcc6/310-build-gcj-s390x.patch
new file mode 100644
index 0000000000..1e522ee152
--- /dev/null
+++ b/community/gcc6/310-build-gcj-s390x.patch
@@ -0,0 +1,28 @@
+From 697a7ba791fce2ffab2ed723d909a89684019e3d Mon Sep 17 00:00:00 2001
+From: "Tuan M. Hoang" <tmhoang@flatglobe.org>
+Date: Sun, 19 Feb 2017 17:03:33 +0000
+Subject: [PATCH] main/gcc : when building gcc-java on s390x, libgcj.so
+ complains about undefined reference to __data_start. Using
+ SEARCH_FOR_DATA_START instead solved it. Credit to Andrew Haley at RedHat.
+
+---
+ boehm-gc/include/private/gcconfig.h | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h
+index 4ca6a80..a15fff6 100644
+--- a/boehm-gc/include/private/gcconfig.h
++++ b/boehm-gc/include/private/gcconfig.h
+@@ -1837,8 +1837,7 @@
+ #       define OS_TYPE "LINUX"
+ #       define LINUX_STACKBOTTOM
+ #       define DYNAMIC_LOADING
+-	extern int __data_start[];
+-#       define DATASTART ((ptr_t)(__data_start))
++#       define SEARCH_FOR_DATA_START
+     extern int _end[];
+ #   define DATAEND (_end)
+ #   define CACHE_LINE_SIZE 256
+-- 
+2.11.1
+
diff --git a/community/gcc6/320-libffi-gnulinux.patch b/community/gcc6/320-libffi-gnulinux.patch
new file mode 100644
index 0000000000..b3b4fc9317
--- /dev/null
+++ b/community/gcc6/320-libffi-gnulinux.patch
@@ -0,0 +1,13 @@
+diff --git a/libffi/closures.c.orig b/libffi/closures.c
+index 721ff00..22a699c 100644
+--- a/libffi/src/closures.c.orig
++++ b/libffi/src/closures.c
+@@ -34,7 +34,7 @@
+ #include <ffi_common.h>
+
+ #if !FFI_MMAP_EXEC_WRIT && !FFI_EXEC_TRAMPOLINE_TABLE
+-# if __gnu_linux__ && !defined(__ANDROID__)
++# if __linux__ && !defined(__ANDROID__)
+ /* This macro indicates it may be forbidden to map anonymous memory
+    with both write and execute permission.  Code compiled when this
+    option is defined will attempt to map such pages once, but if it
diff --git a/community/gcc6/APKBUILD b/community/gcc6/APKBUILD
new file mode 100644
index 0000000000..b32b67d7cd
--- /dev/null
+++ b/community/gcc6/APKBUILD
@@ -0,0 +1,351 @@
+# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
+pkgname=gcc6
+pkgver=6.4.0
+_ver=${pkgver%%.*}
+pkgname="$pkgname"
+pkgrel=7
+pkgdesc="The GNU Compiler Collection"
+url="http://gcc.gnu.org"
+arch="all"
+license="GPL LGPL"
+_gccrel=$pkgver-r$pkgrel
+depends="binutils isl"
+makedepends_build="gcc$_cross g++$_cross paxmark bison flex texinfo gawk zip gmp-dev mpfr-dev mpc1-dev zlib-dev"
+makedepends_host="linux-headers gmp-dev mpfr-dev mpc1-dev isl-dev zlib-dev !gettext-dev"
+subpackages="$pkgname-doc"
+
+STRIP_FOR_TARGET=${CROSS_COMPILE}strip
+_builddir="$srcdir/build"
+
+_languages="c,c++,java"
+subpackages="$subpackages libstdc++6:libcxx:$CTARGET_ARCH g++6:gpp"
+subpackages="$subpackages libgcj6:libgcj:$CTARGET_ARCH gcc6-java:java"
+makedepends="$makedepends_build $makedepends_host"
+
+source="ftp://gcc.gnu.org/pub/gcc/releases/gcc-${_pkgbase:-$pkgver}/gcc-${_pkgbase:-$pkgver}.tar.xz
+	ftp://sourceware.org/pub/java/ecj-4.9.jar
+
+	001_all_default-ssp-strong.patch
+	002_all_default-relro.patch
+	003_all_default-fortify-source.patch
+	005_all_default-as-needed.patch
+	011_all_default-warn-format-security.patch
+	012_all_default-warn-trampolines.patch
+	020_all_msgfmt-libstdc++-link.patch
+	050_all_libiberty-asprintf.patch
+	051_all_libiberty-pic.patch
+	053_all_libitm-no-fortify-source.patch
+	067_all_gcc-poison-system-directories.patch
+	090_all_pr55930-dependency-tracking.patch
+
+	201-cilkrts.patch
+	203-libgcc_s.patch
+	204-linux_libc_has_function.patch
+	205-nopie.patch
+	207-static-pie.patch
+
+	libgcc-always-build-gcceh.a.patch
+	gcc-4.9-musl-fortify.patch
+	gcc-6.1-musl-libssp.patch
+	boehm-gc-musl.patch
+	gcc-pure64.patch
+	fix-gcj-stdgnu14-link.patch
+	fix-gcj-musl.patch
+	fix-gcj-iconv-musl.patch
+
+	gcc-4.8-build-args.patch
+	fix-cxxflags-passing.patch
+
+	300-main-gcc-add-musl-s390x-dynamic-linker.patch
+	310-build-gcj-s390x.patch
+	320-libffi-gnulinux.patch
+
+	fix-rs6000-pie.patch
+	fix-linux-header-use-in-libgcc.patch
+	gcc-pure64-mips.patch
+	fix-ppc64le-coercion-r261621.patch
+	"
+
+sonameprefix="$pkgname:"
+
+# we build out-of-tree
+_gccdir="$srcdir"/gcc-${_pkgbase:-$pkgver}
+_gcclibdir=/usr/lib/gcc/${CTARGET}/$pkgver
+_gcclibexec=/usr/libexec/gcc/${CTARGET}/$pkgver
+
+prepare() {
+	cd "$_gccdir"
+
+	_err=
+	for i in $source; do
+		case "$i" in
+		*.patch)
+			msg "Applying $i"
+			patch -p1 -F3 -i "$srcdir"/$i || _err="$_err $i"
+			;;
+		esac
+	done
+
+	if [ -n "$_err" ]; then
+		error "The following patches failed:"
+		for i in $_err; do
+			echo "  $i"
+		done
+		return 1
+	fi
+
+	# see https://gcc.gnu.org/ml/java/2008-04/msg00027.html
+	mv "$srcdir"/ecj-*.jar ecj.jar
+
+	echo ${pkgver} > gcc/BASE-VER
+}
+
+build() {
+	local _arch_configure=
+	local _libc_configure=
+	local _bootstrap_configure=
+	local _symvers=
+
+	cd "$_gccdir"
+
+	case "$CTARGET" in
+	aarch64-*-*-*)		_arch_configure="--with-arch=armv8-a --with-abi=lp64";;
+	armv5-*-*-*eabi)	_arch_configure="--with-arch=armv5te --with-tune=arm926ej-s --with-float=soft --with-abi=aapcs-linux";;
+	armv6-*-*-*eabihf)	_arch_configure="--with-arch=armv6zk --with-tune=arm1176jzf-s --with-fpu=vfp --with-float=hard --with-abi=aapcs-linux";;
+	armv7-*-*-*eabihf)	_arch_configure="--with-arch=armv7-a --with-tune=generic-armv7-a --with-fpu=vfpv3-d16 --with-float=hard --with-abi=aapcs-linux --with-mode=thumb";;
+	mips-*-*-*)		_arch_configure="--with-arch=mips32 --with-mips-plt --with-float=soft --with-abi=32";;
+	mips64-*-*-*)		_arch_configure="--with-arch=mips3 --with-tune=mips64 --with-mips-plt --with-float=soft --with-abi=64";;
+	mips64el-*-*-*)		_arch_configure="--with-arch=mips3 --with-tune=mips64 --with-mips-plt --with-float=soft --with-abi=64";;
+	mipsel-*-*-*)		_arch_configure="--with-arch=mips32 --with-mips-plt --with-float=soft --with-abi=32";;
+	powerpc-*-*-*)		_arch_configure="--enable-secureplt --enable-decimal-float=no";;
+	powerpc64*-*-*-*)	_arch_configure="--with-abi=elfv2 --enable-secureplt --enable-decimal-float=no --enable-targets=powerpcle-linux";;
+	i486-*-*-*)		_arch_configure="--with-arch=i486 --with-tune=generic --enable-cld";;
+	i586-*-*-*)		_arch_configure="--with-arch=i586 --with-tune=generic --enable-cld";;
+	s390x-*-*-*)		_arch_configure="--with-arch=z196 --with-tune=zEC12 --with-zarch --with-long-double-128 --enable-decimal-float";;
+	esac
+
+	case "$CTARGET_ARCH" in
+	mips*)	_hash_style_configure="--with-linker-hash-style=sysv" ;;
+	*)	_hash_style_configure="--with-linker-hash-style=gnu" ;;
+	esac
+
+	case "$CTARGET_LIBC" in
+	musl)
+		# musl does not support mudflap, or libsanitizer
+		# libmpx uses secure_getenv and struct _libc_fpstate not present in musl
+		# alpine musl provides libssp_nonshared.a, so we don't need libssp either
+		_libc_configure="--disable-libssp --disable-libmpx --disable-libmudflap --disable-libsanitizer"
+		_symvers="--disable-symvers"
+		export libat_cv_have_ifunc=no
+		;;
+	esac
+
+	_bootstrap_configure="--enable-shared --enable-threads --enable-tls"
+
+	msg "Building the following:"
+	echo ""
+	echo "  CBUILD=$CBUILD"
+	echo "  CHOST=$CHOST"
+	echo "  CTARGET=$CTARGET"
+	echo "  CTARGET_ARCH=$CTARGET_ARCH"
+	echo "  CTARGET_LIBC=$CTARGET_LIBC"
+	echo "  languages=$_languages"
+	echo "  arch_configure=$_arch_configure"
+	echo "  libc_configure=$_libc_configure"
+	echo "  bootstrap_configure=$_bootstrap_configure"
+	echo "  hash_style_configure=$_hash_style_configure"
+	echo ""
+
+	mkdir -p "$_builddir"
+	cd "$_builddir"
+	"$_gccdir"/configure --prefix=/usr \
+		--mandir=/usr/share/man \
+		--infodir=/usr/share/info \
+		--build=${CBUILD} \
+		--host=${CHOST} \
+		--target=${CTARGET} \
+		--program-suffix="-$_ver" \
+		--with-pkgversion="Alpine ${pkgver}" \
+		--enable-checking=release \
+		--disable-bootstrap \
+		--disable-fixed-point \
+		--disable-libstdcxx-pch \
+		--disable-multilib \
+		--disable-nls \
+		--disable-werror \
+		--disable-libatomic \
+		--disable-libgomp \
+		--disable-libitm \
+		--disable-libquadmath \
+		$_symvers \
+		--enable-__cxa_atexit \
+		--enable-default-pie \
+		--enable-cloog-backend \
+		--enable-version-specific-runtime-libs \
+		--enable-languages=$_languages \
+		$_arch_configure \
+		$_libc_configure \
+		$_bootstrap_configure \
+		--with-system-zlib \
+		--with-jvm-root=/usr/lib/jvm/java-1.5-gcj \
+		$_hash_style_configure
+	make
+}
+
+package() {
+	cd "$_builddir"
+	make -j1 DESTDIR="${pkgdir}" install
+
+	ln -s gcc-$_ver "$pkgdir"/usr/bin/cc-$_ver
+
+	# we dont support gcj -static
+	# and saving 35MB is not bad.
+	find "$pkgdir" -name libgcj.a -o -name libgtkpeer.a \
+		-o -name libgjsmalsa.a -o -name libgcj-tools.a \
+		-o -name libjvm.a -o -name libgij.a -o -name libgcj_bc.a \
+		-o -name libjavamath.a \
+		| xargs rm -f
+
+	# strip debug info from some static libs
+	${STRIP_FOR_TARGET} -g `find "$pkgdir" \( -name \
+		-o -name libmudflap.a -o -name libmudflapth.a \
+		-o -name libgcc.a -o -name libgcov.a \
+		-o -name libitm.a -o -name libcaf\*.a \
+		-o -name libasan.a -o -name libtsan.a \) \
+		-a -type f`
+
+	sed -i -e 's/lib: /&%{static:%eJava programs cannot be linked statically}/' \
+		"$pkgdir"/$_gcclibdir/libgcj.spec
+
+	# avoid conlict with gcc
+	mv "$pkgdir"/usr/lib/libcc1* "$pkgdir"/$_gcclibdir/
+
+	# remove ffi
+	rm -f "$pkgdir"/usr/lib/libffi* "$pkgdir"/usr/share/man/man3/ffi*
+	find "$pkgdir" -name 'ffi*.h' | xargs rm -f
+
+	# remove conflicting files
+	rm -f "$pkgdir"/usr/lib/gcc/${CHOST}/lib/libgcc_s.so* \
+		"$pkgdir"/usr/lib/libgcc_s.so*
+
+	local gdblib=${CTARGET}lib
+	for i in $(find "$pkgdir"/usr/$gdblib/ -type f -maxdepth 1 -name "*-gdb.py" ); do
+		mkdir -p "$pkgdir"/usr/share/gdb/python/auto-load/usr/$gdblib
+		mv "$i" "$pkgdir"/usr/share/gdb/python/auto-load/usr/$gdblib/
+	done
+
+	paxmark -pmrs "$pkgdir"/$_gcclibexec/cc1
+}
+
+libcxx() {
+	pkgdesc="GNU C++ standard runtime library"
+	depends=
+
+	mkdir -p "$subpkgdir"/$_gcclibdir
+	mv "$pkgdir"/$_gcclibdir/libstdc++.so.* "$subpkgdir"/$_gcclibdir/
+}
+
+gpp() {
+	pkgdesc="GNU C++ standard library and compiler"
+	depends="libstdc++=$_gccrel gcc=$_gccrel libc-dev"
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/usr/bin \
+		"$subpkgdir"/$_gcclibdir/include
+
+	mv "$pkgdir/$_gcclibexec/cc1plus" "$subpkgdir/$_gcclibexec/"
+	paxmark -pmrs "$subpkgdir/$_gcclibexec/cc1plus"
+
+	mv "$pkgdir"/$_gcclibdir/*++* "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/$_gcclibdir/include/c++ "$subpkgdir"/$_gcclibdir/include/
+	mv "$pkgdir"/usr/bin/*++* "$subpkgdir"/usr/bin/
+}
+
+java() {
+	pkgdesc="Java support for GCC"
+	depends="zlib-dev gcc6=$_gccrel libgcj6=$_gccrel"
+
+	paxmark -pm "$pkgdir"/$_gcclibexec/ecj1
+	mkdir -p "$subpkgdir"/usr/bin "$subpkgdir"/usr/lib "$subpkgdir"/$_gcclibdir/
+	cd "$pkgdir"/usr/bin
+	mv gcj-$_ver gcj-dbtool-$_ver gjavah-$_ver gcjh-$_ver jcf-dump-$_ver "$subpkgdir"/usr/bin/
+	cd "$pkgdir"
+	for i in $(find usr/ -name ecj1 -o -name jc1 -o -name jvgenmain); do
+		mkdir -p "$subpkgdir"/${i%/*}
+		mv "$pkgdir"/$i "$subpkgdir"/$i
+	done
+	for i in "$pkgdir"/$_gcclibdir/libgcj*.so; do
+		if [ -L "$i" ]; then
+			mv "$i" "$subpkgdir"/usr/lib/
+		fi
+	done
+	mv "$pkgdir"/$_gcclibdir/libgij.so \
+		"$pkgdir"/$_gcclibdir/libgcj.spec \
+		"$subpkgdir"/$_gcclibdir/
+}
+
+libgcj() {
+	pkgdesc="Java runtime library for gcc"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/bin
+	cd "$pkgdir"/usr/bin
+	paxmark -pmse "$pkgdir"/usr/bin/gij-$_ver
+	mv aot-compile-$_ver gappletviewer-$_ver gc-analyze-$_ver gij-$_ver \
+		gjar-$_ver gjarsigner-$_ver gkeytool-$_ver gnative2ascii-$_ver gorbd-$_ver \
+		grmic-$_ver grmid-$_ver grmiregistry-$_ver gserialver-$_ver \
+		gtnameserv-$_ver jv-convert-$_ver rebuild-gcj-db-$_ver \
+		"$subpkgdir"/usr/bin/
+	cd "$pkgdir"
+	for i in $(find usr/lib -name jc1 -o -name jvgenmain); do
+		mkdir -p "$subpkgdir"/${i%/*}
+		mv "$pkgdir"/$i "$subpkgdir"/$i
+	done
+	mkdir -p "$subpkgdir"/$_gcclibdir
+	mv "$pkgdir"/$_gcclibdir/gcj-* \
+		"$pkgdir"/$_gcclibdir/libgcj_bc.so \
+		"$pkgdir"/$_gcclibdir/libgcj*.so.* \
+		"$pkgdir"/$_gcclibdir/libgij.so.* \
+		"$pkgdir"/$_gcclibdir/logging.properties \
+		"$pkgdir"/$_gcclibdir/security \
+		"$subpkgdir"/usr/lib/
+
+	mkdir -p "$subpkgdir"/usr/share/
+	mv "$pkgdir"/usr/share/java "$subpkgdir"/usr/share/
+}
+
+sha512sums="02c60e54527c7adf584798d5251f8a0b80c93d5deafce82501b2c28e6692e0bd783927bbfc4bc527a863c0cccc025150a34740a9e29badb02d4b48e56a8aba90  gcc-6.4.0.tar.xz
+28f8c6fdbcb19e950b1d0bafb3bcc7a8cba87bc673aa6027cece116599cdee80f0cf5e95a1440544890239f5c754e8a93ab46d9daedd937faef445d7ea33b226  ecj-4.9.jar
+a1335adc2fbee98e36c4437ff2587771b98ed4180726779020f65039498235626a411cdb0100dbd20cd19d12f0d94f9a21af179ff624676c28cead9d60598b5d  001_all_default-ssp-strong.patch
+e36e95b81489163abd6fe9d58f7867bdca43e61143afacbfb17f4698c0b16ec5fd0061d8fab7b2ae615540bebd721c2e2227f80401b4e7fc253da9da62e6b513  002_all_default-relro.patch
+f86466c62b8291fac46f9c250c7ad8fa5ab7b1cce2504442fd07ddc4543665b317ae28951f244e39aba29aeaf3fff252ec4f6a147aa16adb2b7aed747dd89188  003_all_default-fortify-source.patch
+51282fea54c7e616367bbeb2479ba13fec6f24eb47bd04e2071907b3b36273b2ff24676f46ef8d22f241c8ab4857307861eee076eab66797c3a50a8ecaa1809a  005_all_default-as-needed.patch
+3398386dd1e079d6545dd9799adc799c6b80e3984fac6899d0e1a7ee21b66d0c7e53cddf17a65d590c883db750f9f79aaedd857355a8b9f7fb9476c906237919  011_all_default-warn-format-security.patch
+9adb0d2b9b67dd957df6c609b8714c7c078efb52cd88770905c37c67827be8fc83d1125037b9c29d77db21ce78756aa2bb0bacdb0b98d869ac126da76a298e21  012_all_default-warn-trampolines.patch
+d35a3ac7e13a4446921a90e1ff3eec1079840c845f9d523c868e24ae21f94cf69ba041de5341ebef96432a6f57598e223381d4286e8fb8baaa25906707f29fbd  020_all_msgfmt-libstdc++-link.patch
+840070a3c423e6206aaa6e63e1d9a0fcd6efd53626cd1240a193f0b60aa5d84216acc4a2a4fa8bce74549b07e6a316b01d638f20cea13dc62473491a302fb3d6  050_all_libiberty-asprintf.patch
+0a0bc72b9366158f5d23fff1928e756fdd212433bac6ab1f00d632f241382820db8db5d475ddf11ea020eaf7e2e71b12fb9b1c3c870cf84adf6c2b16f15aabca  051_all_libiberty-pic.patch
+e7a2eb1b1870e199d6fd753d065781575656fa12baa264f96c5d179689d88c31b8a3f92a5dae96088c05e96aa2bda138364ad7dbcc79e1819a102f192cbb7bab  053_all_libitm-no-fortify-source.patch
+e87da18aa7ab92b02b06168658c63b42a6c73a08fad2a30f81ef6296100fdbe3c3a91548fd0cb24eaf591e862bb08e4b67249bc4b977b07da33523aee0c686bc  067_all_gcc-poison-system-directories.patch
+4a328d1e1a56c20166307edcfa322068915784d9c08025b7f81cf69714da48fc266b6d34f77b9135c2f10da830d9df408276a1b78d1fd218637c2823506593c2  090_all_pr55930-dependency-tracking.patch
+ef052d0c3c9642fcb5ed570069c5a49c8ef523c47ac8ce3f201a801766f72ae4ff7c3725a70ee66e52c0fb559621e35fe0cf5b88b901d71ceadd381f49653a08  201-cilkrts.patch
+808e206f5e107084156fba333d4e091dcbd62f5d7756142bc292d4b0a52619f8c2aaca3617defc2f5b6552ba0439aebd33f4141329d88eab6ddf2dd637d92c08  203-libgcc_s.patch
+fc0de05b36613b732a0222ea005c90653c6a40d6761b6894af2419272f4e74875f37e26af33a9b9940669ef89269c44c46d17ca5bcd54b5cd1176e5eaf2992c1  204-linux_libc_has_function.patch
+98473bcaa77903a223ca9b0d2087c0921b287a2816d308cc32c8fe009e6cbf5dd1ae7fba27794ab8d9c09e117fe534413d91a464d1218474fc123ce0adfdc2c1  205-nopie.patch
+3287d5b443bea8ec64132bcabe869c738ae98ea8f1a86df1c5d18c927f8816edbfcefeefc47792dbbb2bcacf50319af00e01b3735d34525913b64350770ad453  207-static-pie.patch
+d08d7ead2de0429e5c9055d5b029ec2be9a8c821d22cecaf9b51f633652c493333f98963d9267fa2fa63850c50ae5eefd5f59e5910ec10d20044dac082182a8b  libgcc-always-build-gcceh.a.patch
+600fe5098dc54edaa9808fd5717af9dec058953f9ad37d49cfba1db4f7e9a7a8f02019342f75157fc575946fa693259422184de27b7ecc8386d9f3ecc0f7cc5d  gcc-4.9-musl-fortify.patch
+dbe0ee917fc7668571722364ab7c806731e3a31e8bfa30b4941b28b16b877d2a32b4a3897ef533399a28f82d43cac9b28e92de0493f0e779046db56584e07fa4  gcc-6.1-musl-libssp.patch
+bda845a6aa1854d2c883910b115f79ccfa93dfc2b5eac69a3a236d83eb34cadc140731d616ffc24698c7abc8878dd15f231bcc5119f1860e575a120b311706c7  boehm-gc-musl.patch
+fa62556719449caec6b2b434355bfbcaa5ae55ffe017b3e1f827f66a2aae21b79c571ee7a4ce723ea69169bc3a6447e73650991a200cc372adf2f102677518d7  gcc-pure64.patch
+2253941f3d19b6d08801d3782f5f5ed56c3b73fbc9d3561a8f01c702963ac4fab91599c686076e7081eb6a80c37ccd33591ae978996d6eee1dc0ce0f1c50259a  fix-gcj-stdgnu14-link.patch
+f89ddeb21bc8f97e6a850a6b70b4501a8f3e49a4bc8cc82897488decda5d98ad01cb7f6c8b392d452e9579924a523bc75da6e0648c1c976d42e40af48b10343b  fix-gcj-musl.patch
+54d67cc008b735e47771314171930c5d8b8f5f5dc97fcf4214824c105c808f3e75d22d5a4fdf5068ed0457fa0d46c60cfb442e276259a4a5e9b8722a027d18e6  fix-gcj-iconv-musl.patch
+abe9aaf9aa956058d0386a4396a511d176a46bb3906b90e952383646cdc158cbeb0a5dc616a1ccb1ca7d49fd0b5e351532aa15a3b13362abbf1ca4266f54a687  gcc-4.8-build-args.patch
+35d6d59f0b7b968f282f56767c9e0823a7bdc5aa0d450aca50fbd802649a7ca608b47671244a3faa208a9b0d6832cabb5a22724157dc817b2c0ad63d09f93282  fix-cxxflags-passing.patch
+4b4a0ff306a8ef34ff6e3284fbfca869012164a47ba7cb099085c1dd03e6ca0cdd462f82710e08c9a02895adc7484e4c5eef17b5aa264cf5d978fe8ad78eea93  300-main-gcc-add-musl-s390x-dynamic-linker.patch
+385bc2fa50204f678964e5148c6170f572701dab920fbec8301f505bda34d182cde0adb7da042fee71719e12fb59f59181897f9b1bb4f4716ff59aad46ca1998  310-build-gcj-s390x.patch
+f4ef08454e28c8732db69115e4998ec153399e8d229dd27f923dbdcf57b68128a65640d026cc7f45b58ba8764ab1eb575d4eb6d6dfc550a87a183f8b94e76181  320-libffi-gnulinux.patch
+01c71cd5881fc07ea3b9b980697e89b3ca0fe98502958ceafc3fca18b2604c844e2f457feab711baf8e03f00a5383b0e38aac7eb954034e306f43d4a37f165ed  fix-rs6000-pie.patch
+34a818d5be67eb1f34e44a80b83c28a9b9c17d37fc9fac639f490d6bb5b53ebe3318140d09c236a17d7c98f5a7792ae3d6cefccda8067a5e942d6305b9d1f87c  fix-linux-header-use-in-libgcc.patch
+86be3338cc9c33089608bc4c5e3b7918c4e500a345c338f361b18c342119a6ed69af5495d72950de7106d760f003528b46ad14795e805f8a3331e206dcb234e3  gcc-pure64-mips.patch
+aae9d510326bed6eca0b1f680d2caf64dd804e73fb9d726c8932faa845c07e1be6ab12920972d8fb80a33dafedcaafca71487b0eaf10e6d5fa7deb853926b933  fix-ppc64le-coercion-r261621.patch"
diff --git a/community/gcc6/boehm-gc-musl.patch b/community/gcc6/boehm-gc-musl.patch
new file mode 100644
index 0000000000..2f106cba14
--- /dev/null
+++ b/community/gcc6/boehm-gc-musl.patch
@@ -0,0 +1,62 @@
+--- gcc-4.8.1/boehm-gc/os_dep.c.orig	2013-09-17 07:46:00.969884340 +0000
++++ gcc-4.8.1/boehm-gc/os_dep.c	2013-09-17 06:53:53.629884946 +0000
+@@ -26,7 +26,7 @@
+ #     define __KERNEL__
+ #     include <asm/signal.h>
+ #     undef __KERNEL__
+-#   else
++#   elif defined(__GLIBC__)
+       /* Kernels prior to 2.1.1 defined struct sigcontext_struct instead of */
+       /* struct sigcontext.  libc6 (glibc2) uses "struct sigcontext" in     */
+       /* prototypes, so we have to include the top-level sigcontext.h to    */
+--- gcc-4.8.2/boehm-gc/dyn_load.c.orig	2014-02-17 14:13:09.519850231 +0200
++++ gcc-4.8.2/boehm-gc/dyn_load.c	2014-02-17 14:14:27.906093514 +0200
+@@ -459,9 +459,7 @@
+ /* For glibc 2.2.4+.  Unfortunately, it doesn't work for older	*/
+ /* versions.  Thanks to Jakub Jelinek for most of the code.	*/
+ 
+-# if (defined(LINUX) || defined (__GLIBC__)) /* Are others OK here, too? */ \
+-     && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \
+-         || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG))) 
++# if (defined(LINUX) || defined (__GLIBC__))
+ 
+ /* We have the header files for a glibc that includes dl_iterate_phdr.	*/
+ /* It may still not be available in the library on the target system.   */
+--- gcc-4.8.2/boehm-gc/include/private/gcconfig.h.orig	2014-02-17 14:14:36.026049422 +0200
++++ gcc-4.8.2/boehm-gc/include/private/gcconfig.h	2014-02-17 14:17:11.345207887 +0200
+@@ -684,7 +684,7 @@
+ #       ifdef __ELF__
+ #            define DYNAMIC_LOADING
+ #	     include <features.h>
+-#	     if defined(__GLIBC__)&& __GLIBC__>=2
++#	     if 1
+ #              define SEARCH_FOR_DATA_START
+ #	     else /* !GLIBC2 */
+                extern char **__environ;
+@@ -1147,7 +1147,7 @@
+ #              define DATASTART ((ptr_t)((((word) (_etext)) + 0xfff) & ~0xfff))
+ #	     endif
+ #	     include <features.h>
+-#	     if defined(__GLIBC__) && __GLIBC__ >= 2
++#	     if 1
+ #		 define SEARCH_FOR_DATA_START
+ #	     else
+      	         extern char **__environ;
+@@ -1367,7 +1367,7 @@
+ #       define HBLKSIZE 4096
+ #     endif
+ #     define USE_GENERIC_PUSH_REGS
+-#     if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 2 || __GLIBC__ > 2
++#     if 1
+ #        define LINUX_STACKBOTTOM
+ #     else
+ #        define STACKBOTTOM 0x80000000
+@@ -1858,7 +1858,7 @@
+ #       ifdef __ELF__
+ #            define DYNAMIC_LOADING
+ #	     include <features.h>
+-#	     if defined(__GLIBC__) && __GLIBC__ >= 2
++#	     if 1
+ #		 define SEARCH_FOR_DATA_START
+ #	     else
+      	         extern char **__environ;
diff --git a/community/gcc6/fix-cxxflags-passing.patch b/community/gcc6/fix-cxxflags-passing.patch
new file mode 100644
index 0000000000..8eb1de77d5
--- /dev/null
+++ b/community/gcc6/fix-cxxflags-passing.patch
@@ -0,0 +1,10 @@
+--- gcc-4.8.1/Makefile.in.orig
++++ gcc-4.8.1/Makefile.in
+@@ -169,6 +169,7 @@
+ # built for the build system to override those in BASE_FLAGS_TO_PASSS.
+ EXTRA_BUILD_FLAGS = \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)" \
++	CXXFLAGS="$(CXXFLAGS_FOR_BUILD)" \
+ 	LDFLAGS="$(LDFLAGS_FOR_BUILD)"
+ 
+ # This is the list of directories to built for the host system.
diff --git a/community/gcc6/fix-gcj-iconv-musl.patch b/community/gcc6/fix-gcj-iconv-musl.patch
new file mode 100644
index 0000000000..b0015751e2
--- /dev/null
+++ b/community/gcc6/fix-gcj-iconv-musl.patch
@@ -0,0 +1,120 @@
+--- gcc-4.8.2/libjava/gnu/gcj/convert/natIconv.cc.orig	2014-02-18 18:46:14.897880526 +0200
++++ gcc-4.8.2/libjava/gnu/gcj/convert/natIconv.cc	2014-02-18 18:50:08.766613550 +0200
+@@ -24,6 +24,13 @@
+ 
+ #ifdef HAVE_ICONV
+ #include <iconv.h>
++#include <endian.h>
++
++#if __BYTE_ORDER == __BIG_ENDIAN
++#define UCS2_CHARSET "UCS-2BE"
++#else
++#define UCS2_CHARSET "UCS-2LE"
++#endif
+ 
+ template<typename T>
+ static inline size_t
+@@ -45,7 +52,7 @@
+   _Jv_GetStringUTFRegion (encoding, 0, encoding->length(), buffer);
+   buffer[len] = '\0';
+ 
+-  iconv_t h = iconv_open ("UCS-2", buffer);
++  iconv_t h = iconv_open (UCS2_CHARSET, buffer);
+   if (h == (iconv_t) -1)
+     throw new ::java::io::UnsupportedEncodingException (encoding);
+ 
+@@ -99,18 +106,6 @@
+ 	throw new ::java::io::CharConversionException ();
+     }
+ 
+-  if (iconv_byte_swap)
+-    {
+-      size_t max = (old_out - outavail) / sizeof (jchar);
+-      for (size_t i = 0; i < max; ++i)
+-	{
+-	  // Byte swap.
+-	  jchar c = (((out[outpos + i] & 0xff) << 8)
+-		     | ((out[outpos + i] >> 8) & 0xff));
+-	  outbuf[i] = c;
+-	}
+-    }
+-
+   inpos += old_in - inavail;
+   return (old_out - outavail) / sizeof (jchar);
+ #else /* HAVE_ICONV */
+@@ -145,7 +140,7 @@
+   _Jv_GetStringUTFRegion (encoding, 0, encoding->length(), buffer);
+   buffer[len] = '\0';
+ 
+-  iconv_t h = iconv_open (buffer, "UCS-2");
++  iconv_t h = iconv_open (buffer, UCS2_CHARSET);
+   if (h == (iconv_t) -1)
+     throw new ::java::io::UnsupportedEncodingException (encoding);
+ 
+@@ -187,20 +182,6 @@
+   char *inbuf = (char *) &chars[inpos];
+   char *outbuf = (char *) &out[count];
+ 
+-  if (iconv_byte_swap)
+-    {
+-      // Ugly performance penalty -- don't use losing systems!
+-      temp_buffer = (jchar *) _Jv_Malloc (inlength * sizeof (jchar));
+-      for (int i = 0; i < inlength; ++i)
+-	{
+-	  // Byte swap.
+-	  jchar c = (((chars[inpos + i] & 0xff) << 8)
+-		     | ((chars[inpos + i] >> 8) & 0xff));
+-	  temp_buffer[i] = c;
+-	}
+-      inbuf = (char *) temp_buffer;
+-    }
+-
+   size_t loop_old_in = old_in;
+   while (1)
+     {
+@@ -252,44 +233,7 @@
+ jboolean
+ gnu::gcj::convert::IOConverter::iconv_init (void)
+ {
+-  // Some versions of iconv() always return their UCS-2 results in
+-  // big-endian order, and they also require UCS-2 inputs to be in
+-  // big-endian order.  For instance, glibc 2.1.3 does this.  If the
+-  // UTF-8=>UCS-2 iconv converter has this feature, then we assume
+-  // that all UCS-2 converters do.  (This might not be the best
+-  // heuristic, but is is all we've got.)
+-  jboolean result = false;
+-#ifdef HAVE_ICONV
+-  iconv_t handle = iconv_open ("UCS-2", "UTF-8");
+-  if (handle != (iconv_t) -1)
+-    {
+-      jchar c;
+-      unsigned char in[4];
+-      char *inp, *outp;
+-      size_t inc, outc, r;
+-
+-      // This is the UTF-8 encoding of \ufeff.  At least Tru64 UNIX libiconv
+-      // needs the trailing NUL byte, otherwise iconv fails with EINVAL.
+-      in[0] = 0xef;
+-      in[1] = 0xbb;
+-      in[2] = 0xbf;
+-      in[3] = 0x00;
+-
+-      inp = (char *) in;
+-      inc = 4;
+-      outp = (char *) &c;
+-      outc = 2;
+-
+-      r = iconv_adapter (iconv, handle, &inp, &inc, &outp, &outc);
+-      // Conversion must be complete for us to use the result.
+-      if (r != (size_t) -1 && inc == 0 && outc == 0)
+-	result = (c != 0xfeff);
+-
+-      // Release iconv handle.
+-      iconv_close (handle);
+-    }
+-#endif /* HAVE_ICONV */
+-  return result;
++  return false;
+ }
+ 
+ void
diff --git a/community/gcc6/fix-gcj-musl.patch b/community/gcc6/fix-gcj-musl.patch
new file mode 100644
index 0000000000..d26f510c0b
--- /dev/null
+++ b/community/gcc6/fix-gcj-musl.patch
@@ -0,0 +1,49 @@
+--- gcc-4.8.2/libjava/gnu/classpath/natSystemProperties.cc.orig	2014-02-18 10:55:08.617678779 +0200
++++ gcc-4.8.2/libjava/gnu/classpath/natSystemProperties.cc	2014-02-18 10:56:31.927227453 +0200
+@@ -289,7 +289,7 @@
+   // just default to `en_US'.
+   setlocale (LC_ALL, "");
+   char *locale = setlocale (LC_MESSAGES, "");
+-  if (locale && strlen (locale) >= 2)
++  if (locale && strlen (locale) >= 2 && (locale[2] == '\0' || locale[2] == '_'))
+     {
+       char buf[3];
+       buf[2] = '\0';
+--- gcc-4.8.2/libjava/posix-threads.cc.orig	2014-02-18 13:22:01.789933726 +0200
++++ gcc-4.8.2/libjava/posix-threads.cc	2014-02-18 13:29:50.924058875 +0200
+@@ -657,6 +657,7 @@
+   struct sched_param param;
+   pthread_attr_t attr;
+   struct starter *info;
++  size_t ss;
+ 
+   if (data->flags & FLAG_START)
+     return;
+@@ -675,8 +676,25 @@
+   // Set stack size if -Xss option was given.
+   if (gcj::stack_size > 0)
+     {
+-      int e = pthread_attr_setstacksize (&attr, gcj::stack_size);
++      ss = gcj::stack_size;
++    }
++  else
++    {
++      int e = pthread_attr_getstacksize (&attr, &ss);
++      if (e != 0)
++        JvFail (strerror (e));
++
++      // Request at least 1meg of stack
++      if (ss >= 1024 * 1024)
++        ss = 0;
++      else
++        ss = 1024 * 1024;
++    }
++
++  if (ss)
++    {
++      int e = pthread_attr_setstacksize (&attr, ss);
+       if (e != 0)
+ 	JvFail (strerror (e));
+     }
+ 
+   info = (struct starter *) _Jv_AllocBytes (sizeof (struct starter));
diff --git a/community/gcc6/fix-gcj-stdgnu14-link.patch b/community/gcc6/fix-gcj-stdgnu14-link.patch
new file mode 100644
index 0000000000..2b2ce0fa59
--- /dev/null
+++ b/community/gcc6/fix-gcj-stdgnu14-link.patch
@@ -0,0 +1,35 @@
+--- gcc-6.1.0/libjava/Makefile.am
++++ gcc-6.1.0/libjava/Makefile.am
+@@ -488,10 +488,14 @@
+ nat_files = $(nat_source_files:.cc=.lo)
+ xlib_nat_files = $(xlib_nat_source_files:.cc=.lo)
+ 
++libgcj_la_CPPFLAGS = \
++        $(AM_CPPFLAGS) \
++        $(LIBSTDCXX_RAW_CXX_CXXFLAGS)
++
+ # Include THREADLIBS here to ensure that the correct version of
+ # certain linuxthread functions get linked:
+ ## The mysterious backslash in the grep pattern is consumed by make.
+-libgcj_la_LDFLAGS = -rpath $(toolexeclibdir) $(THREADLDFLAGS) $(extra_ldflags) $(THREADLIBS) \
++libgcj_la_LDFLAGS = $(LIBSTDCXX_RAW_CXX_LDFLAGS) -rpath $(toolexeclibdir) $(THREADLDFLAGS) $(extra_ldflags) $(THREADLIBS) \
+ 	$(LIBLTDL) $(SYS_ZLIBS) $(LIBJAVA_LDFLAGS_NOUNDEF) \
+ 	-version-info `grep -v '^\#' $(srcdir)/libtool-version` \
+ 	$(LIBGCJ_LD_SYMBOLIC_FUNCTIONS) $(LIBGCJ_LD_EXPORT_ALL)
+--- gcc-6.1.0/libjava/Makefile.in
++++ gcc-6.1.0/libjava/Makefile.in
+@@ -1103,9 +1103,13 @@
+ nat_files = $(nat_source_files:.cc=.lo)
+ xlib_nat_files = $(xlib_nat_source_files:.cc=.lo)
+ 
++libgcj_la_CPPFLAGS = \
++	$(AM_CPPFLAGS) \
++        $(LIBSTDCXX_RAW_CXX_CXXFLAGS)
++
+ # Include THREADLIBS here to ensure that the correct version of
+ # certain linuxthread functions get linked:
+-libgcj_la_LDFLAGS = -rpath $(toolexeclibdir) $(THREADLDFLAGS) $(extra_ldflags) $(THREADLIBS) \
++libgcj_la_LDFLAGS = $(LIBSTDCXX_RAW_CXX_LDFLAGS) -rpath $(toolexeclibdir) $(THREADLDFLAGS) $(extra_ldflags) $(THREADLIBS) \
+ 	$(LIBLTDL) $(SYS_ZLIBS) $(LIBJAVA_LDFLAGS_NOUNDEF) \
+ 	-version-info `grep -v '^\#' $(srcdir)/libtool-version` \
+ 	$(LIBGCJ_LD_SYMBOLIC_FUNCTIONS) $(LIBGCJ_LD_EXPORT_ALL)
diff --git a/community/gcc6/fix-linux-header-use-in-libgcc.patch b/community/gcc6/fix-linux-header-use-in-libgcc.patch
new file mode 100644
index 0000000000..6dad1b2cad
--- /dev/null
+++ b/community/gcc6/fix-linux-header-use-in-libgcc.patch
@@ -0,0 +1,44 @@
+From 9cd4503714c4e596818c4ea8e15905c249b7a319 Mon Sep 17 00:00:00 2001
+From: nsz <nsz@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu, 25 Aug 2016 14:08:27 +0000
+Subject: [PATCH] [mips] Fix linux header use in libgcc
+
+libgcc/
+	* config/mips/linux-unwind.h: Use sys/syscall.h.
+
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239759 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+ libgcc/ChangeLog                  | 4 ++++
+ libgcc/config/mips/linux-unwind.h | 2 +-
+ 2 files changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
+index b78c4b2..99bd2f1 100644
+--- a/libgcc/ChangeLog
++++ b/libgcc/ChangeLog
+@@ -1,3 +1,7 @@
++2016-08-25  Szabolcs Nagy  <szabolcs.nagy@arm.com>
++
++	* config/mips/linux-unwind.h: Use sys/syscall.h.
++
+ 2016-08-16  Joseph Myers  <joseph@codesourcery.com>
+ 
+ 	PR libgcc/77265
+diff --git a/libgcc/config/mips/linux-unwind.h b/libgcc/config/mips/linux-unwind.h
+index bf12de5..4035c121 100644
+--- a/libgcc/config/mips/linux-unwind.h
++++ b/libgcc/config/mips/linux-unwind.h
+@@ -27,7 +27,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+    state data appropriately.  See unwind-dw2.c for the structs.  */
+ 
+ #include <signal.h>
+-#include <asm/unistd.h>
++#include <sys/syscall.h>
+ 
+ /* The third parameter to the signal handler points to something with
+  * this structure defined in asm/ucontext.h, but the name clashes with
+-- 
+2.9.3
+
diff --git a/community/gcc6/fix-ppc64le-coercion-r261621.patch b/community/gcc6/fix-ppc64le-coercion-r261621.patch
new file mode 100644
index 0000000000..bd321ca4ab
--- /dev/null
+++ b/community/gcc6/fix-ppc64le-coercion-r261621.patch
@@ -0,0 +1,11 @@
+--- a/libcpp/lex.c
++++ b/libcpp/lex.c
+@@ -568,7 +568,7 @@
+     {
+       vc m_nl, m_cr, m_bs, m_qm;
+ 
+-      data = *((const vc *)s);
++      data = __builtin_vec_vsx_ld (0, s);
+       s += 16;
+ 
+       m_nl = (vc) __builtin_vec_cmpeq(data, repl_nl);
diff --git a/community/gcc6/fix-rs6000-pie.patch b/community/gcc6/fix-rs6000-pie.patch
new file mode 100644
index 0000000000..1fbc31a56a
--- /dev/null
+++ b/community/gcc6/fix-rs6000-pie.patch
@@ -0,0 +1,59 @@
+--- gcc-6.3.0.orig/gcc/config/rs6000/sysv4.h
++++ gcc-6.3.0/gcc/config/rs6000/sysv4.h
+@@ -753,23 +753,42 @@
+ #endif
+ 
+ #ifdef HAVE_LD_PIE
+-#define	STARTFILE_LINUX_SPEC "\
+-%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
+-%{mnewlib:ecrti.o%s;:crti.o%s} \
+-%{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s} \
+-" CRTOFFLOADBEGIN
++#define STARTFILE_LINUX_SPEC \
++  "%{!shared: %{pg|p|profile:gcrt1.o%s;: \
++    %{" PIE_SPEC ":%{static:rcrt1.o%s;:Scrt1.o%s}} %{" NO_PIE_SPEC ":crt1.o%s}}} \
++   crti.o%s %{shared:crtbeginS.o%s;: \
++              %{" PIE_SPEC ":crtbeginS.o%s} \
++              %{" NO_PIE_SPEC ":%{static:crtbeginT.o%s;:crtbegin.o%s}}} \
++   %{fvtable-verify=none:%s; \
++     fvtable-verify=preinit:vtv_start_preinit.o%s; \
++     fvtable-verify=std:vtv_start.o%s} \
++   " CRTOFFLOADBEGIN
+ #else
+-#define	STARTFILE_LINUX_SPEC "\
+-%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \
+-%{mnewlib:ecrti.o%s;:crti.o%s} \
+-%{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s} \
+-" CRTOFFLOADBEGIN
++#define STARTFILE_LINUX_SPEC \
++  "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \
++   crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s} \
++   %{fvtable-verify=none:%s; \
++     fvtable-verify=preinit:vtv_start_preinit.o%s; \
++     fvtable-verify=std:vtv_start.o%s} \
++   " CRTOFFLOADBEGIN
+ #endif
+ 
+-#define	ENDFILE_LINUX_SPEC "\
+-%{shared|pie:crtendS.o%s;:crtend.o%s} \
+-%{mnewlib:ecrtn.o%s;:crtn.o%s} \
+-" CRTOFFLOADEND
++#ifdef HAVE_LD_PIE
++#define ENDFILE_LINUX_SPEC \
++  "%{fvtable-verify=none:%s; \
++     fvtable-verify=preinit:vtv_end_preinit.o%s; \
++     fvtable-verify=std:vtv_end.o%s} \
++   %{shared:crtendS.o%s;: %{" PIE_SPEC ":crtendS.o%s} \
++   %{" NO_PIE_SPEC ":crtend.o%s}} crtn.o%s \
++   " CRTOFFLOADEND
++#else
++#define ENDFILE_LINUX_SPEC \
++  "%{fvtable-verify=none:%s; \
++     fvtable-verify=preinit:vtv_end_preinit.o%s; \
++     fvtable-verify=std:vtv_end.o%s} \
++   %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s \
++   " CRTOFFLOADEND
++#endif
+ 
+ #define LINK_START_LINUX_SPEC ""
+ 
diff --git a/community/gcc6/gcc-4.8-build-args.patch b/community/gcc6/gcc-4.8-build-args.patch
new file mode 100644
index 0000000000..c27e009619
--- /dev/null
+++ b/community/gcc6/gcc-4.8-build-args.patch
@@ -0,0 +1,41 @@
+When cross compiling a target gcc, target flags may be used on the host
+
+Configure identifies a number of warning flags (WARN_CFLAGS and
+WARN_CXXFLAGS) from the $CC value.  The cross compiler may be different
+from the host compiler and may not support the same set of flags.  This
+leads to problems such as:
+
+cc1plus: error: unrecognized command line option "-Wno-narrowing"
+cc1plus: error: unrecognized command line option "-Wno-overlength-strings"
+
+Work around this problem by removing the warning flags from the
+BUILD_CXXFLAGS value, in a way similar to the BUILD_CFLAGS.
+
+Upstream-Status: Pending
+
+Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
+
+Index: gcc-4.8.0/gcc/configure
+===================================================================
+--- gcc-4.8.0.orig/gcc/configure
++++ gcc-4.8.0/gcc/configure
+@@ -11720,6 +10581,7 @@ STMP_FIXINC=stmp-fixinc
+ if test x$build != x$host || test "x$coverage_flags" != x
+ then
+     BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
++    BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
+     BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
+ fi
+ 
+Index: gcc-4.8.0/gcc/configure.ac
+===================================================================
+--- gcc-4.8.0.orig/gcc/configure.ac
++++ gcc-4.8.0/gcc/configure.ac
+@@ -1901,6 +1901,7 @@ STMP_FIXINC=stmp-fixinc		AC_SUBST(STMP_F
+ if test x$build != x$host || test "x$coverage_flags" != x
+ then
+     BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
++    BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
+     BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
+ fi
+ 
diff --git a/community/gcc6/gcc-4.9-musl-fortify.patch b/community/gcc6/gcc-4.9-musl-fortify.patch
new file mode 100644
index 0000000000..daae954c80
--- /dev/null
+++ b/community/gcc6/gcc-4.9-musl-fortify.patch
@@ -0,0 +1,11 @@
+--- gcc-4.9.2/gcc/config/linux.h.orig	2015-03-09 13:27:13.289736710 +0000
++++ gcc-4.9.2/gcc/config/linux.h	2015-03-09 13:29:32.295625046 +0000
+@@ -146,6 +146,8 @@
+ 
+ #ifdef NATIVE_SYSTEM_HEADER_DIR
+ #define INCLUDE_DEFAULTS_MUSL_NATIVE			\
++    { NATIVE_SYSTEM_HEADER_DIR "/fortify", 0, 0, 0, 1, 2 },	\
++    { NATIVE_SYSTEM_HEADER_DIR "/fortify", 0, 0, 0, 1, 0 },	\
+     { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 },	\
+     { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
+ #else
diff --git a/community/gcc6/gcc-6.1-musl-libssp.patch b/community/gcc6/gcc-6.1-musl-libssp.patch
new file mode 100644
index 0000000000..fe5c61434d
--- /dev/null
+++ b/community/gcc6/gcc-6.1-musl-libssp.patch
@@ -0,0 +1,20 @@
+Author: Timo Teräs <timo.teras@iki.fi>
+
+Alpine musl package provides libssp_nonshared.a. We link to it unconditionally,
+as otherwise we get link failures if some objects are -fstack-protector built
+and final link happens with -fno-stack-protector. This seems to be the common
+case when bootstrapping gcc, the piepatches do not seem to fully fix the
+crosstoolchain and  bootstrap sequence wrt. stack-protector flag usage.
+
+--- gcc-6.1.0/gcc/gcc.c.orig
++++ gcc-6.1.0/gcc/gcc.c
+@@ -870,8 +870,7 @@
+ 
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+-#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+-		       "|fstack-protector-strong|fstack-protector-explicit:}"
++#define LINK_SSP_SPEC "-lssp_nonshared"
+ #else
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+ 		       "|fstack-protector-strong|fstack-protector-explicit" \
diff --git a/community/gcc6/gcc-pure64-mips.patch b/community/gcc6/gcc-pure64-mips.patch
new file mode 100644
index 0000000000..d78f283810
--- /dev/null
+++ b/community/gcc6/gcc-pure64-mips.patch
@@ -0,0 +1,47 @@
+From b8c4e45d052adc247341066f748421743704b481 Mon Sep 17 00:00:00 2001
+From: Nils Andreas Svee <me@lochnair.net>
+Date: Thu, 21 Dec 2017 03:14:33 +0100
+Subject: [PATCH] Pure 64-bit MIPS
+
+---
+ gcc/config/mips/mips.h    | 8 ++++----
+ gcc/config/mips/t-linux64 | 6 +++---
+ 2 files changed, 7 insertions(+), 7 deletions(-)
+
+diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h
+index 803ab98e7..afd74752f 100644
+--- a/gcc/config/mips/mips.h
++++ b/gcc/config/mips/mips.h
+@@ -3330,11 +3330,11 @@ struct GTY(())  machine_function {
+ /* If we are *not* using multilibs and the default ABI is not ABI_32 we
+    need to change these from /lib and /usr/lib.  */
+ #if MIPS_ABI_DEFAULT == ABI_N32
+-#define STANDARD_STARTFILE_PREFIX_1 "/lib32/"
+-#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib32/"
++#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
++#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
+ #elif MIPS_ABI_DEFAULT == ABI_64
+-#define STANDARD_STARTFILE_PREFIX_1 "/lib64/"
+-#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib64/"
++#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
++#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
+ #endif
+ 
+ /* Load store bonding is not supported by micromips and fix_24k.  The
+diff --git a/gcc/config/mips/t-linux64 b/gcc/config/mips/t-linux64
+index 16c8adf85..bb46204db 100644
+--- a/gcc/config/mips/t-linux64
++++ b/gcc/config/mips/t-linux64
+@@ -21,6 +21,6 @@ MULTILIB_DIRNAMES = n32 32 64
+ MIPS_EL = $(if $(filter %el, $(firstword $(subst -, ,$(target)))),el)
+ MIPS_SOFT = $(if $(strip $(filter MASK_SOFT_FLOAT_ABI, $(target_cpu_default)) $(filter soft, $(with_float))),soft)
+ MULTILIB_OSDIRNAMES = \
+-	../lib32$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \
+-	../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \
+-	../lib64$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT))
++        ../lib \
++        ../lib32 \
++        ../lib
+-- 
+2.15.1
+
diff --git a/community/gcc6/gcc-pure64.patch b/community/gcc6/gcc-pure64.patch
new file mode 100644
index 0000000000..2c350fe5ad
--- /dev/null
+++ b/community/gcc6/gcc-pure64.patch
@@ -0,0 +1,89 @@
+--- ./gcc/config/i386/t-linux64.orig	2013-01-14 16:32:37.000000000 +0000
++++ ./gcc/config/i386/t-linux64	2013-04-22 06:12:32.984439677 +0000
+@@ -34,6 +34,6 @@
+ comma=,
+ MULTILIB_OPTIONS    = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))
+ MULTILIB_DIRNAMES   = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))
+-MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu)
+-MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-linux-gnu)
++MULTILIB_OSDIRNAMES = m64=../lib
++MULTILIB_OSDIRNAMES+= m32=../lib32
+ MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
+--- ./gcc/config/aarch64/t-aarch64-linux.orig
++++ ./gcc/config/aarch64/t-aarch64-linux
+@@ -22,7 +22,7 @@
+ LIB1ASMFUNCS = _aarch64_sync_cache_range
+ 
+ AARCH_BE = $(if $(findstring TARGET_BIG_ENDIAN_DEFAULT=1, $(tm_defines)),_be)
+-MULTILIB_OSDIRNAMES = mabi.lp64=../lib64$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu)
++MULTILIB_OSDIRNAMES = mabi.lp64=../lib
+ MULTIARCH_DIRNAME = $(call if_multiarch,aarch64$(AARCH_BE)-linux-gnu)
+ 
+ MULTILIB_OSDIRNAMES += mabi.ilp32=../libilp32
+--- ./gcc/config/s390/t-linux64.orig
++++ ./gcc/config/s390/t-linux64
+@@ -7,5 +7,5 @@
+ MULTILIB_OPTIONS = m64/m31
+ MULTILIB_DIRNAMES = 64 32
+-MULTILIB_OSDIRNAMES = ../lib64$(call if_multiarch,:s390x-linux-gnu)
+-MULTILIB_OSDIRNAMES += $(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:s390-linux-gnu)
++MULTILIB_OSDIRNAMES = m64=../lib
++MULTILIB_OSDIRNAMES+= m32=../lib32
+
+--- ./gcc/config/rs6000/t-linux.orig
++++ ./gcc/config/rs6000/t-linux
+@@ -2,7 +2,8 @@
+ # or soft-float.
+ ifeq (,$(filter $(with_cpu),$(SOFT_FLOAT_CPUS))$(findstring soft,$(with_float)))
+ ifneq (,$(findstring powerpc64,$(target)))
+-MULTILIB_OSDIRNAMES := .=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
++MULTILIB_OSDIRNAMES := m64=../lib
++MULTILIB_OSDIRNAMES += m32=../lib32
+ else
+ ifneq (,$(findstring spe,$(target)))
+ MULTIARCH_DIRNAME := powerpc-linux-gnuspe$(if $(findstring 8548,$(with_cpu)),,v1)
+@@ -14,7 +15,8 @@
+ MULTIARCH_DIRNAME := $(subst -linux,le-linux,$(MULTIARCH_DIRNAME))
+ endif
+ ifneq (,$(findstring powerpc64le,$(target)))
+-MULTILIB_OSDIRNAMES := $(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES))
++MULTILIB_OSDIRNAMES := m64=../lib
++MULTILIB_OSDIRNAMES += m32=../lib32
+ endif
+ endif
+ 
+--- ./gcc/config/rs6000/t-linux64.orig
++++ ./gcc/config/rs6000/t-linux64
+@@ -28,8 +28,8 @@
+ MULTILIB_OPTIONS    := m64/m32
+ MULTILIB_DIRNAMES   := 64 32
+ MULTILIB_EXTRA_OPTS := 
+-MULTILIB_OSDIRNAMES := m64=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+-MULTILIB_OSDIRNAMES += m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:powerpc-linux-gnu)
++MULTILIB_OSDIRNAMES := m64=../lib
++MULTILIB_OSDIRNAMES += m32=../lib32
+ 
+ rs6000-linux.o: $(srcdir)/config/rs6000/rs6000-linux.c
+ 	$(COMPILE) $<
+--- ./gcc/config/rs6000/t-linux64bele.orig
++++ ./gcc/config/rs6000/t-linux64bele
+@@ -2,6 +2,6 @@
+ 
+ MULTILIB_OPTIONS    += mlittle
+ MULTILIB_DIRNAMES   += le
+-MULTILIB_OSDIRNAMES += $(subst =,.mlittle=,$(subst lible32,lib32le,$(subst lible64,lib64le,$(subst lib,lible,$(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES))))))
+-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mlittle%,$(MULTILIB_OSDIRNAMES)))
++MULTILIB_OSDIRNAMES = m64=../lib
++MULTILIB_OSDIRNAMES+= m32=../lib32
+ MULTILIB_MATCHES    := ${MULTILIB_MATCHES_ENDIAN}
+--- ./gcc/config/rs6000/t-linux64lebe.orig
++++ ./gcc/config/rs6000/t-linux64lebe
+@@ -2,6 +2,6 @@
+ 
+ MULTILIB_OPTIONS    += mbig
+ MULTILIB_DIRNAMES   += be
+-MULTILIB_OSDIRNAMES += $(subst =,.mbig=,$(subst libbe32,lib32be,$(subst libbe64,lib64be,$(subst lib,libbe,$(subst le-linux,-linux,$(MULTILIB_OSDIRNAMES))))))
+-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mbig%,$(MULTILIB_OSDIRNAMES)))
++MULTILIB_OSDIRNAMES := m64=../lib
++MULTILIB_OSDIRNAMES += m32=../lib32
+ MULTILIB_MATCHES    := ${MULTILIB_MATCHES_ENDIAN}
diff --git a/community/gcc6/libgcc-always-build-gcceh.a.patch b/community/gcc6/libgcc-always-build-gcceh.a.patch
new file mode 100644
index 0000000000..74ae897304
--- /dev/null
+++ b/community/gcc6/libgcc-always-build-gcceh.a.patch
@@ -0,0 +1,39 @@
+Highly inspired by:
+  http://landley.net/hg/aboriginal/file/7e0747a665ab/sources/patches/gcc-core-libgcceh.patch
+
+diff -durN gcc-4.6.0.orig/libgcc/Makefile.in gcc-4.6.0/libgcc/Makefile.in
+--- gcc-4.6.0.orig/libgcc/Makefile.in	2011-01-26 05:19:58.000000000 +0100
++++ gcc-4.6.0/libgcc/Makefile.in	2011-09-12 18:17:12.743718974 +0200
+@@ -772,8 +772,9 @@
+ libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT)
+ endif
+ 
++all: libgcc_eh.a
+ ifeq ($(enable_shared),yes)
+-all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
++all: libgcc_s$(SHLIB_EXT)
+ ifneq ($(LIBUNWIND),)
+ all: libunwind$(SHLIB_EXT)
+ endif
+@@ -950,10 +951,6 @@
+ install-shared:
+ 	$(mkinstalldirs) $(DESTDIR)$(inst_libdir)
+ 
+-	$(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/
+-	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+-	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+-
+ 	$(subst @multilib_dir@,$(MULTIDIR),$(subst \
+ 		@shlib_base_name@,libgcc_s,$(subst \
+ 		@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))
+@@ -968,6 +965,10 @@
+ 	chmod 644 $(DESTDIR)$(inst_libdir)/libgcov.a
+ 	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcov.a
+ 
++	$(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/
++	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
++	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
++
+ 	parts="$(INSTALL_PARTS)";				\
+ 	for file in $$parts; do					\
+ 	  rm -f $(DESTDIR)$(inst_libdir)/$$file;		\