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make the trivial forms of CreateCoerced{Load|Store} trivial. 

llvm-svn: 107091
This commit is contained in:
Chris Lattner 2010-06-28 22:51:39 +00:00
parent 764b056c30
commit d200eda487
1 changed files with 12 additions and 3 deletions
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15
clang/lib/CodeGen/CGCall.cpp
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@ -421,6 +421,11 @@ static llvm::Value *CreateCoercedLoad(llvm::Value *SrcPtr,
CodeGenFunction &CGF) {
const llvm::Type *SrcTy =
cast<llvm::PointerType>(SrcPtr->getType())->getElementType();
// If SrcTy and Ty are the same, just do a load.
if (SrcTy == Ty)
return CGF.Builder.CreateLoad(SrcPtr);
uint64_t DstSize = CGF.CGM.getTargetData().getTypeAllocSize(Ty);
if (const llvm::StructType *SrcSTy = dyn_cast<llvm::StructType>(SrcTy)) {
@ -476,11 +481,15 @@ static void CreateCoercedStore(llvm::Value *Src,
bool DstIsVolatile,
CodeGenFunction &CGF) {
const llvm::Type *SrcTy = Src->getType();
uint64_t SrcSize = CGF.CGM.getTargetData().getTypeAllocSize(SrcTy);
const llvm::Type *DstTy =
cast<llvm::PointerType>(DstPtr->getType())->getElementType();
if (SrcTy == DstTy) {
CGF.Builder.CreateStore(Src, DstPtr, DstIsVolatile);
return;
}
uint64_t SrcSize = CGF.CGM.getTargetData().getTypeAllocSize(SrcTy);
if (const llvm::StructType *DstSTy = dyn_cast<llvm::StructType>(DstTy)) {
DstPtr = EnterStructPointerForCoercedAccess(DstPtr, DstSTy, SrcSize, CGF);
DstTy = cast<llvm::PointerType>(DstPtr->getType())->getElementType();