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-rw-r--r--lib/VMCore/ConstantFold.cpp9
1 files changed, 3 insertions, 6 deletions
diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp
index 451190fc94..762a24a263 100644
--- a/lib/VMCore/ConstantFold.cpp
+++ b/lib/VMCore/ConstantFold.cpp
@@ -170,8 +170,6 @@ static Constant *FoldBitCast(Constant *V, const Type *DestTy) {
Constant *llvm::ConstantFoldCastInstruction(unsigned opc, const Constant *V,
const Type *DestTy) {
- const Type *SrcTy = V->getType();
-
if (isa<UndefValue>(V)) {
// zext(undef) = 0, because the top bits will be zero.
// sext(undef) = 0, because the top bits will all be the same.
@@ -257,12 +255,11 @@ Constant *llvm::ConstantFoldCastInstruction(unsigned opc, const Constant *V,
if (const ConstantInt *CI = dyn_cast<ConstantInt>(V)) {
APInt api = CI->getValue();
const uint64_t zero[] = {0, 0};
- uint32_t BitWidth = cast<IntegerType>(SrcTy)->getBitWidth();
APFloat apf = APFloat(APInt(DestTy->getPrimitiveSizeInBits(),
2, zero));
- (void)apf.convertFromZeroExtendedInteger(api.getRawData(), BitWidth,
- opc==Instruction::SIToFP,
- APFloat::rmNearestTiesToEven);
+ (void)apf.convertFromAPInt(api,
+ opc==Instruction::SIToFP,
+ APFloat::rmNearestTiesToEven);
return ConstantFP::get(DestTy, apf);
}
if (const ConstantVector *CV = dyn_cast<ConstantVector>(V)) {