diff options
Diffstat (limited to 'lib/Analysis/ConstantFolding.cpp')
| -rw-r--r-- | lib/Analysis/ConstantFolding.cpp | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp index 7e802ba7dd..359766d444 100644 --- a/lib/Analysis/ConstantFolding.cpp +++ b/lib/Analysis/ConstantFolding.cpp @@ -163,14 +163,15 @@ llvm::ConstantFoldCall(Function *F, const std::vector<Constant*> &Operands) { default: break; } - } else if (ConstantUInt *Op = dyn_cast<ConstantUInt>(Operands[0])) { - uint64_t V = Op->getValue(); + } else if (ConstantInt *Op = dyn_cast<ConstantInt>(Operands[0])) { + assert(Op->getType()->isUnsigned() && "bswap args must be unsigned"); + uint64_t V = Op->getZExtValue(); if (Name == "llvm.bswap.i16") - return ConstantUInt::get(Ty, ByteSwap_16(V)); + return ConstantInt::get(Ty, ByteSwap_16(V)); else if (Name == "llvm.bswap.i32") - return ConstantUInt::get(Ty, ByteSwap_32(V)); + return ConstantInt::get(Ty, ByteSwap_32(V)); else if (Name == "llvm.bswap.i64") - return ConstantUInt::get(Ty, ByteSwap_64(V)); + return ConstantInt::get(Ty, ByteSwap_64(V)); } } else if (Operands.size() == 2) { if (ConstantFP *Op1 = dyn_cast<ConstantFP>(Operands[0])) { |