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[ASAN] NFC: Remove redundant variable

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`StackAlignment` has only one use: `StackAlignment = std::max(StackAlignment, AI.getAlignment());` So it is redundant.

Reviewed By: vitalybuka, MTC

Differential Revision: https://reviews.llvm.org/D106741
This commit is contained in:
Enna1 2021-07-27 11:53:47 -07:00 committed by Vitaly Buka
parent c563d2cbcd
commit 2a88f80da4
1 changed files with 0 additions and 3 deletions
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3
lib/Transforms/Instrumentation/AddressSanitizer.cpp
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@ -932,7 +932,6 @@ struct FunctionStackPoisoner : public InstVisitor<FunctionStackPoisoner> {
SmallVector<AllocaInst *, 16> AllocaVec; SmallVector<AllocaInst *, 16> AllocaVec;
SmallVector<AllocaInst *, 16> StaticAllocasToMoveUp; SmallVector<AllocaInst *, 16> StaticAllocasToMoveUp;
SmallVector<Instruction *, 8> RetVec; SmallVector<Instruction *, 8> RetVec;
unsigned StackAlignment;
FunctionCallee AsanStackMallocFunc[kMaxAsanStackMallocSizeClass + 1], FunctionCallee AsanStackMallocFunc[kMaxAsanStackMallocSizeClass + 1],
AsanStackFreeFunc[kMaxAsanStackMallocSizeClass + 1]; AsanStackFreeFunc[kMaxAsanStackMallocSizeClass + 1];
@ -964,7 +963,6 @@ struct FunctionStackPoisoner : public InstVisitor<FunctionStackPoisoner> {
: F(F), ASan(ASan), DIB(*F.getParent(), /*AllowUnresolved*/ false), : F(F), ASan(ASan), DIB(*F.getParent(), /*AllowUnresolved*/ false),
C(ASan.C), IntptrTy(ASan.IntptrTy), C(ASan.C), IntptrTy(ASan.IntptrTy),
IntptrPtrTy(PointerType::get(IntptrTy, 0)), Mapping(ASan.Mapping), IntptrPtrTy(PointerType::get(IntptrTy, 0)), Mapping(ASan.Mapping),
StackAlignment(1 << Mapping.Scale),
PoisonStack(ClStack && PoisonStack(ClStack &&
!Triple(F.getParent()->getTargetTriple()).isAMDGPU()) {} !Triple(F.getParent()->getTargetTriple()).isAMDGPU()) {}
@ -1088,7 +1086,6 @@ struct FunctionStackPoisoner : public InstVisitor<FunctionStackPoisoner> {
return; return;
} }
StackAlignment = std::max(StackAlignment, AI.getAlignment());
if (!AI.isStaticAlloca()) if (!AI.isStaticAlloca())
DynamicAllocaVec.push_back(&AI); DynamicAllocaVec.push_back(&AI);
else else