diff options
Diffstat (limited to 'lib/IR/ConstantFold.cpp')
| -rw-r--r-- | lib/IR/ConstantFold.cpp | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/lib/IR/ConstantFold.cpp b/lib/IR/ConstantFold.cpp index dc7728a4841..bba230677eb 100644 --- a/lib/IR/ConstantFold.cpp +++ b/lib/IR/ConstantFold.cpp @@ -18,6 +18,7 @@ //===----------------------------------------------------------------------===// #include "ConstantFold.h" +#include "llvm/ADT/APSInt.h" #include "llvm/ADT/SmallVector.h" #include "llvm/IR/Constants.h" #include "llvm/IR/DerivedTypes.h" @@ -606,17 +607,15 @@ Constant *llvm::ConstantFoldCastInstruction(unsigned opc, Constant *V, if (ConstantFP *FPC = dyn_cast<ConstantFP>(V)) { const APFloat &V = FPC->getValueAPF(); bool ignored; - uint64_t x[2]; uint32_t DestBitWidth = cast<IntegerType>(DestTy)->getBitWidth(); + APSInt IntVal(DestBitWidth, opc == Instruction::FPToUI); if (APFloat::opInvalidOp == - V.convertToInteger(x, DestBitWidth, opc==Instruction::FPToSI, - APFloat::rmTowardZero, &ignored)) { + V.convertToInteger(IntVal, APFloat::rmTowardZero, &ignored)) { // Undefined behavior invoked - the destination type can't represent // the input constant. return UndefValue::get(DestTy); } - APInt Val(DestBitWidth, x); - return ConstantInt::get(FPC->getContext(), Val); + return ConstantInt::get(FPC->getContext(), IntVal); } return nullptr; // Can't fold. case Instruction::IntToPtr: //always treated as unsigned |