diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/VMCore/Constants.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/VMCore/Constants.cpp b/llvm/lib/VMCore/Constants.cpp index 2aa0524dfd0..710b738cd24 100644 --- a/llvm/lib/VMCore/Constants.cpp +++ b/llvm/lib/VMCore/Constants.cpp @@ -1531,9 +1531,10 @@ Constant *ConstantExpr::getFPCast(Constant *C, const Type *Ty) { "Invalid cast"); unsigned SrcBits = C->getType()->getPrimitiveSizeInBits(); unsigned DstBits = Ty->getPrimitiveSizeInBits(); + if (SrcBits == DstBits) + return C; // Avoid a useless cast Instruction::CastOps opcode = - (SrcBits == DstBits ? Instruction::BitCast : - (SrcBits > DstBits ? Instruction::FPTrunc : Instruction::FPExt)); + (SrcBits > DstBits ? Instruction::FPTrunc : Instruction::FPExt); return getCast(opcode, C, Ty); } |
