diff options
Diffstat (limited to 'lib/VMCore/ConstantFold.cpp')
| -rw-r--r-- | lib/VMCore/ConstantFold.cpp | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp index 5167c12d49..25c756ab6e 100644 --- a/lib/VMCore/ConstantFold.cpp +++ b/lib/VMCore/ConstantFold.cpp @@ -238,9 +238,12 @@ Constant *llvm::ConstantFoldCastInstruction(unsigned opc, const Constant *V, std::vector<Constant*> res; const VectorType *DestVecTy = cast<VectorType>(DestTy); const Type *DstEltTy = DestVecTy->getElementType(); - for (unsigned i = 0, e = CV->getType()->getNumElements(); i != e; ++i) - res.push_back(ConstantFoldCastInstruction(opc, V->getOperand(i), - DstEltTy)); + for (unsigned i = 0, e = CV->getType()->getNumElements(); i != e; ++i) { + Constant *C = ConstantFoldCastInstruction(opc, CV->getOperand(i), + DstEltTy); + if (!C) return 0; // Can't fold operand. + res.push_back(C); + } return ConstantVector::get(DestVecTy, res); } return 0; // Can't fold. @@ -268,9 +271,12 @@ Constant *llvm::ConstantFoldCastInstruction(unsigned opc, const Constant *V, std::vector<Constant*> res; const VectorType *DestVecTy = cast<VectorType>(DestTy); const Type *DstEltTy = DestVecTy->getElementType(); - for (unsigned i = 0, e = CV->getType()->getNumElements(); i != e; ++i) - res.push_back(ConstantFoldCastInstruction(opc, V->getOperand(i), - DstEltTy)); + for (unsigned i = 0, e = CV->getType()->getNumElements(); i != e; ++i) { + Constant *C = ConstantFoldCastInstruction(opc, CV->getOperand(i), + DstEltTy); + if (!C) return 0; // Can't fold operand. + res.push_back(C); + } return ConstantVector::get(DestVecTy, res); } return 0; |