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| author | Natanael Copa <ncopa@alpinelinux.org> | 2020-03-27 11:36:15 +0000 |
|---|---|---|
| committer | Natanael Copa <ncopa@alpinelinux.org> | 2020-03-27 11:36:30 +0000 |
| commit | 063082ba2278c67bb5429c5a2363e25f55462a67 (patch) | |
| tree | 1fa76ab12d981664e9e692ad010c9f51c0e999d1 /community/llvm8/GlobalOpt-prevent-crashing-on-wide-integer-types.patch | |
| parent | ae600a11fa30d9b3682409c76a4fc6b59f2309c7 (diff) | |
| download | aports-063082ba2278c67bb5429c5a2363e25f55462a67.tar.bz2 aports-063082ba2278c67bb5429c5a2363e25f55462a67.tar.xz | |
community/llvm8: move to community
nothing in main needs llvm8
Diffstat (limited to 'community/llvm8/GlobalOpt-prevent-crashing-on-wide-integer-types.patch')
| -rw-r--r-- | community/llvm8/GlobalOpt-prevent-crashing-on-wide-integer-types.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/community/llvm8/GlobalOpt-prevent-crashing-on-wide-integer-types.patch b/community/llvm8/GlobalOpt-prevent-crashing-on-wide-integer-types.patch new file mode 100644 index 0000000000..3b450e23d1 --- /dev/null +++ b/community/llvm8/GlobalOpt-prevent-crashing-on-wide-integer-types.patch @@ -0,0 +1,47 @@ +diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp +index 3005aaf..fa3f3a7 100644 +--- a/lib/Transforms/IPO/GlobalOpt.cpp ++++ b/lib/Transforms/IPO/GlobalOpt.cpp +@@ -1639,10 +1639,12 @@ static bool TryToShrinkGlobalToBoolean(GlobalVariable *GV, Constant *OtherVal) { + // instead of a select to synthesize the desired value. + bool IsOneZero = false; + bool EmitOneOrZero = true; +- if (ConstantInt *CI = dyn_cast<ConstantInt>(OtherVal)){ ++ auto *CI = dyn_cast<ConstantInt>(OtherVal); ++ if (CI && CI->getValue().getActiveBits() <= 64) { + IsOneZero = InitVal->isNullValue() && CI->isOne(); + +- if (ConstantInt *CIInit = dyn_cast<ConstantInt>(GV->getInitializer())){ ++ auto *CIInit = dyn_cast<ConstantInt>(GV->getInitializer()); ++ if (CIInit && CIInit->getValue().getActiveBits() <= 64) { + uint64_t ValInit = CIInit->getZExtValue(); + uint64_t ValOther = CI->getZExtValue(); + uint64_t ValMinus = ValOther - ValInit; +diff --git a/test/Transforms/GlobalOpt/large-int-crash.ll b/test/Transforms/GlobalOpt/large-int-crash.ll +index e69de29..7584554 100644 +--- a/test/Transforms/GlobalOpt/large-int-crash.ll ++++ b/test/Transforms/GlobalOpt/large-int-crash.ll +@@ -0,0 +1,23 @@ ++; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ++; RUN: opt < %s -globalopt -S | FileCheck %s ++ ++@X = internal global i128 0 ++ ++define void @foo() { ++; CHECK-LABEL: @foo( ++; CHECK-NEXT: [[T0_B:%.*]] = load i1, i1* @X ++; CHECK-NEXT: [[T0:%.*]] = select i1 [[T0_B]], i128 18446744073709551616, i128 0 ++; CHECK-NEXT: ret void ++; ++ %t0 = load i128, i128* @X, align 8 ++ ret void ++} ++ ++define void @store() { ++; CHECK-LABEL: @store( ++; CHECK-NEXT: store i1 true, i1* @X ++; CHECK-NEXT: ret void ++; ++ store i128 18446744073709551616, i128* @X, align 8 ++ ret void ++} |