diff options
Diffstat (limited to 'lib/Analysis/ScalarEvolutionExpander.cpp')
| -rw-r--r-- | lib/Analysis/ScalarEvolutionExpander.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/Analysis/ScalarEvolutionExpander.cpp b/lib/Analysis/ScalarEvolutionExpander.cpp index 9676ea20af..be91c0d724 100644 --- a/lib/Analysis/ScalarEvolutionExpander.cpp +++ b/lib/Analysis/ScalarEvolutionExpander.cpp @@ -27,13 +27,20 @@ Value *SCEVExpander::InsertCastOfTo(Instruction::CastOps opcode, Value *V, // Short-circuit unnecessary inttoptr<->ptrtoint casts. if ((opcode == Instruction::PtrToInt || opcode == Instruction::IntToPtr) && - SE.getTypeSizeInBits(Ty) == SE.getTypeSizeInBits(V->getType())) + SE.getTypeSizeInBits(Ty) == SE.getTypeSizeInBits(V->getType())) { if (CastInst *CI = dyn_cast<CastInst>(V)) if ((CI->getOpcode() == Instruction::PtrToInt || CI->getOpcode() == Instruction::IntToPtr) && SE.getTypeSizeInBits(CI->getType()) == SE.getTypeSizeInBits(CI->getOperand(0)->getType())) return CI->getOperand(0); + if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) + if ((CE->getOpcode() == Instruction::PtrToInt || + CE->getOpcode() == Instruction::IntToPtr) && + SE.getTypeSizeInBits(CE->getType()) == + SE.getTypeSizeInBits(CE->getOperand(0)->getType())) + return CE->getOperand(0); + } // FIXME: keep track of the cast instruction. if (Constant *C = dyn_cast<Constant>(V)) |