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No need to do work that the folding builder does for us. 

llvm-svn: 45361
This commit is contained in:
Anders Carlsson 2007-12-26 18:20:19 +00:00
parent bc13df19a8
commit c9d41e7d27
1 changed files with 14 additions and 37 deletions
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51
clang/CodeGen/CGExprScalar.cpp
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@ -368,50 +368,27 @@ Value *ScalarExprEmitter::EmitScalarConversion(Value *Src, QualType SrcType,
// Finally, we have the arithmetic types: real int/float.
if (isa<llvm::IntegerType>(Src->getType())) {
bool InputSigned = SrcType->isSignedIntegerType();
if (llvm::Constant *C = dyn_cast<llvm::Constant>(Src)) {
if (isa<llvm::IntegerType>(DstTy))
return llvm::ConstantExpr::getIntegerCast(C, DstTy, InputSigned);
else if (InputSigned)
return llvm::ConstantExpr::getSIToFP(C, DstTy);
else
return llvm::ConstantExpr::getUIToFP(C, DstTy);
} else {
if (isa<llvm::IntegerType>(DstTy))
return Builder.CreateIntCast(Src, DstTy, InputSigned, "conv");
else if (InputSigned)
return Builder.CreateSIToFP(Src, DstTy, "conv");
else
return Builder.CreateUIToFP(Src, DstTy, "conv");
}
if (isa<llvm::IntegerType>(DstTy))
return Builder.CreateIntCast(Src, DstTy, InputSigned, "conv");
else if (InputSigned)
return Builder.CreateSIToFP(Src, DstTy, "conv");
else
return Builder.CreateUIToFP(Src, DstTy, "conv");
}
assert(Src->getType()->isFloatingPoint() && "Unknown real conversion");
if (isa<llvm::IntegerType>(DstTy)) {
if (llvm::Constant *C = dyn_cast<llvm::Constant>(Src)) {
if (DstType->isSignedIntegerType())
return llvm::ConstantExpr::getFPToSI(C, DstTy);
else
return llvm::ConstantExpr::getFPToUI(C, DstTy);
} else {
if (DstType->isSignedIntegerType())
return Builder.CreateFPToSI(Src, DstTy, "conv");
else
return Builder.CreateFPToUI(Src, DstTy, "conv");
}
if (DstType->isSignedIntegerType())
return Builder.CreateFPToSI(Src, DstTy, "conv");
else
return Builder.CreateFPToUI(Src, DstTy, "conv");
}
assert(DstTy->isFloatingPoint() && "Unknown real conversion");
if (llvm::Constant *C = dyn_cast<llvm::Constant>(Src)) {
if (DstTy->getTypeID() < Src->getType()->getTypeID())
return llvm::ConstantExpr::getFPTrunc(C, DstTy);
else
return llvm::ConstantExpr::getFPExtend(C, DstTy);
} else {
if (DstTy->getTypeID() < Src->getType()->getTypeID())
return Builder.CreateFPTrunc(Src, DstTy, "conv");
else
return Builder.CreateFPExt(Src, DstTy, "conv");
}
if (DstTy->getTypeID() < Src->getType()->getTypeID())
return Builder.CreateFPTrunc(Src, DstTy, "conv");
else
return Builder.CreateFPExt(Src, DstTy, "conv");
}
/// EmitComplexToScalarConversion - Emit a conversion from the specified