1 files changed, 0 insertions, 85 deletions
diff --git a/unmaintained/llvm3.9/rust-lang-llvm-pr55.patch b/unmaintained/llvm3.9/rust-lang-llvm-pr55.patch
deleted file mode 100644
index f534f31e89..0000000000
--- a/unmaintained/llvm3.9/rust-lang-llvm-pr55.patch
+++ /dev/null
@@ -1,85 +0,0 @@
-From eff5dc809ed54701f2bb3e15c58d01881299cedf Mon Sep 17 00:00:00 2001
-From: David Majnemer <david.majnemer@gmail.com>
-Date: Tue, 11 Oct 2016 01:00:45 +0000
-Subject: [rust-lang/llvm#55] [InstCombine] Transform !range metadata to
- !nonnull when combining loads
-
-When combining an integer load with !range metadata that does not include 0 to a pointer load, make sure emit !nonnull metadata on the newly-created pointer load. This prevents the !nonnull metadata from being dropped during a ptrtoint/inttoptr pair.
-
-This fixes PR30597.
-
-Patch by Ariel Ben-Yehuda!
-
-Differential Revision: https://reviews.llvm.org/D25215
-
-git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283836 91177308-0d34-0410-b5e6-96231b3b80d8
----
- .../InstCombine/InstCombineLoadStoreAlloca.cpp     | 12 ++++++--
- test/Transforms/InstCombine/PR30597.ll             | 32 ++++++++++++++++++++++
- 2 files changed, 42 insertions(+), 2 deletions(-)
- create mode 100644 test/Transforms/InstCombine/PR30597.ll
-
-diff --git a/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp b/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
-index d312983ed51b..26f4e764501a 100644
---- a/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
-+++ b/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
-@@ -380,8 +380,16 @@ static LoadInst *combineLoadToNewType(InstCombiner &IC, LoadInst &LI, Type *NewT
-       break;
-     case LLVMContext::MD_range:
-       // FIXME: It would be nice to propagate this in some way, but the type
--      // conversions make it hard. If the new type is a pointer, we could
--      // translate it to !nonnull metadata.
-+      // conversions make it hard.
-+
-+      // If it's a pointer now and the range does not contain 0, make it !nonnull.
-+      if (NewTy->isPointerTy()) {
-+        unsigned BitWidth = IC.getDataLayout().getTypeSizeInBits(NewTy);
-+        if (!getConstantRangeFromMetadata(*N).contains(APInt(BitWidth, 0))) {
-+          MDNode *NN = MDNode::get(LI.getContext(), None);
-+          NewLoad->setMetadata(LLVMContext::MD_nonnull, NN);
-+        }
-+      }
-       break;
-     }
-   }
-diff --git a/test/Transforms/InstCombine/PR30597.ll b/test/Transforms/InstCombine/PR30597.ll
-new file mode 100644
-index 000000000000..c0803ed71204
---- /dev/null
-+++ b/test/Transforms/InstCombine/PR30597.ll
-@@ -0,0 +1,32 @@
-+; RUN: opt < %s -instcombine -S | FileCheck %s
-+
-+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
-+target triple = "x86_64-unknown-linux-gnu"
-+
-+; Function Attrs: readonly uwtable
-+define i1 @dot_ref_s(i32** noalias nocapture readonly dereferenceable(8)) {
-+entry-block:
-+  %loadedptr = load i32*, i32** %0, align 8, !nonnull !0
-+  %ptrtoint = ptrtoint i32* %loadedptr to i64
-+  %inttoptr = inttoptr i64 %ptrtoint to i32*
-+  %switchtmp = icmp eq i32* %inttoptr, null
-+  ret i1 %switchtmp
-+
-+; CHECK-LABEL: @dot_ref_s
-+; CHECK-NEXT: entry-block:
-+; CHECK-NEXT: ret i1 false
-+}
-+
-+; Function Attrs: readonly uwtable
-+define i64* @function(i64* noalias nocapture readonly dereferenceable(8)) {
-+entry-block:
-+  %loaded = load i64, i64* %0, align 8, !range !1
-+  %inttoptr = inttoptr i64 %loaded to i64*
-+  ret i64* %inttoptr
-+; CHECK-LABEL: @function
-+; CHECK: %{{.+}} = load i64*, i64** %{{.+}}, align 8, !nonnull
-+}
-+
-+
-+!0 = !{}
-+!1 = !{i64 1, i64 140737488355327}
--- 
-2.9.3
-