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Minor cleanup. 

llvm-svn: 67896
This commit is contained in:
Eli Friedman 2009-03-28 03:10:45 +00:00
parent e381f7e3e9
commit 9127aa1caf
1 changed files with 1 additions and 11 deletions
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12
clang/lib/CodeGen/CGExprAgg.cpp
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@ -313,17 +313,7 @@ void AggExprEmitter::EmitNullInitializationToLValue(LValue LV, QualType T) {
// There's a potential optimization opportunity in combining
// memsets; that would be easy for arrays, but relatively
// difficult for structures with the current code.
const llvm::Type *SizeTy = llvm::Type::Int64Ty;
llvm::Value *MemSet = CGF.CGM.getIntrinsic(llvm::Intrinsic::memset,
&SizeTy, 1);
uint64_t Size = CGF.getContext().getTypeSize(T);
const llvm::Type *BP = llvm::PointerType::getUnqual(llvm::Type::Int8Ty);
llvm::Value* DestPtr = Builder.CreateBitCast(LV.getAddress(), BP, "tmp");
Builder.CreateCall4(MemSet, DestPtr,
llvm::ConstantInt::get(llvm::Type::Int8Ty, 0),
llvm::ConstantInt::get(SizeTy, Size/8),
llvm::ConstantInt::get(llvm::Type::Int32Ty, 0));
CGF.EmitMemSetToZero(LV.getAddress(), T);
}
}