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| author | Guillaume Chatelet <gchatelet@google.com> | 2022-06-14 09:50:54 +0000 |
|---|---|---|
| committer | Guillaume Chatelet <gchatelet@google.com> | 2022-06-14 10:56:36 +0000 |
| commit | c0e85f1c3bb4cf683aff42eb179ad5643d9a434d (patch) | |
| tree | 898ce5e327efb9457029de875cb8d57b30ba5a06 /llvm/lib/CodeGen/SafeStack.cpp | |
| parent | 6725d806400e4071ebf32a95bb21466b32e52a76 (diff) | |
| download | llvm-c0e85f1c3bb4cf683aff42eb179ad5643d9a434d.zip llvm-c0e85f1c3bb4cf683aff42eb179ad5643d9a434d.tar.gz llvm-c0e85f1c3bb4cf683aff42eb179ad5643d9a434d.tar.bz2 | |
[NFC][Alignment] Use Align in SafeStack
Diffstat (limited to 'llvm/lib/CodeGen/SafeStack.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SafeStack.cpp | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/SafeStack.cpp b/llvm/lib/CodeGen/SafeStack.cpp index 2c16c191..e7116ec 100644 --- a/llvm/lib/CodeGen/SafeStack.cpp +++ b/llvm/lib/CodeGen/SafeStack.cpp @@ -127,7 +127,7 @@ class SafeStack { /// /// 16 seems like a reasonable upper bound on the alignment of objects that we /// might expect to appear on the stack on most common targets. - static constexpr uint64_t StackAlignment = 16; + static constexpr Align StackAlignment = Align::Constant<16>(); /// Return the value of the stack canary. Value *getStackGuard(IRBuilder<> &IRB, Function &F); @@ -201,7 +201,7 @@ public: bool run(); }; -constexpr uint64_t SafeStack::StackAlignment; +constexpr Align SafeStack::StackAlignment; uint64_t SafeStack::getStaticAllocaAllocationSize(const AllocaInst* AI) { uint64_t Size = DL.getTypeAllocSize(AI->getAllocatedType()); @@ -673,13 +673,12 @@ void SafeStack::moveDynamicAllocasToUnsafeStack( SP = IRB.CreateSub(SP, Size); // Align the SP value to satisfy the AllocaInst, type and stack alignments. - uint64_t Align = - std::max(std::max(DL.getPrefTypeAlignment(Ty), AI->getAlignment()), - StackAlignment); + auto Align = std::max(std::max(DL.getPrefTypeAlign(Ty), AI->getAlign()), + StackAlignment); - assert(isPowerOf2_32(Align)); Value *NewTop = IRB.CreateIntToPtr( - IRB.CreateAnd(SP, ConstantInt::get(IntPtrTy, ~uint64_t(Align - 1))), + IRB.CreateAnd(SP, + ConstantInt::get(IntPtrTy, ~uint64_t(Align.value() - 1))), StackPtrTy); // Save the stack pointer. |