diff options
Diffstat (limited to 'clang/lib/CodeGen/CGDecl.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGDecl.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/clang/lib/CodeGen/CGDecl.cpp b/clang/lib/CodeGen/CGDecl.cpp index 0afd4816143..739b2d858cb 100644 --- a/clang/lib/CodeGen/CGDecl.cpp +++ b/clang/lib/CodeGen/CGDecl.cpp @@ -967,11 +967,12 @@ static bool shouldUseBZeroPlusStoresToInitialize(llvm::Constant *Init, /// FIXME We could be more clever, as we are for bzero above, and generate /// memset followed by stores. It's unclear that's worth the effort. static llvm::Value *shouldUseMemSetToInitialize(llvm::Constant *Init, - uint64_t GlobalSize) { + uint64_t GlobalSize, + const llvm::DataLayout &DL) { uint64_t SizeLimit = 32; if (GlobalSize <= SizeLimit) return nullptr; - return llvm::isBytewiseValue(Init); + return llvm::isBytewiseValue(Init, DL); } /// Decide whether we want to split a constant structure or array store into a @@ -1177,7 +1178,8 @@ static void emitStoresForConstant(CodeGenModule &CGM, const VarDecl &D, } // If the initializer is a repeated byte pattern, use memset. - llvm::Value *Pattern = shouldUseMemSetToInitialize(constant, ConstantSize); + llvm::Value *Pattern = + shouldUseMemSetToInitialize(constant, ConstantSize, CGM.getDataLayout()); if (Pattern) { uint64_t Value = 0x00; if (!isa<llvm::UndefValue>(Pattern)) { |
