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-rw-r--r--llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp7
1 files changed, 3 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index 2dd2fe6211c..ff4368198be 100644
--- a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -1753,11 +1753,10 @@ void FunctionStackPoisoner::poisonStack() {
uint64_t LocalStackSize = L.FrameSize;
bool DoStackMalloc = ClUseAfterReturn && !ASan.CompileKernel &&
LocalStackSize <= kMaxStackMallocSize;
- // Don't do dynamic alloca in presence of inline asm: too often it makes
- // assumptions on which registers are available. Don't do stack malloc in the
- // presence of inline asm on 32-bit platforms for the same reason.
+ // Don't do dynamic alloca or stack malloc in presence of inline asm:
+ // too often it makes assumptions on which registers are available.
bool DoDynamicAlloca = ClDynamicAllocaStack && !HasNonEmptyInlineAsm;
- DoStackMalloc &= !HasNonEmptyInlineAsm || ASan.LongSize != 32;
+ DoStackMalloc &= !HasNonEmptyInlineAsm;
Value *StaticAlloca =
DoDynamicAlloca ? nullptr : createAllocaForLayout(IRB, L, false);
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