diff options
Diffstat (limited to 'llvm/lib/Analysis/ScalarEvolution.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ScalarEvolution.cpp | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp index 6c23f401c5b..aadba9d9d3d 100644 --- a/llvm/lib/Analysis/ScalarEvolution.cpp +++ b/llvm/lib/Analysis/ScalarEvolution.cpp @@ -2938,15 +2938,10 @@ const SCEV *ScalarEvolution::createSCEV(Value *V) { return getSCEV(U->getOperand(0)); break; - case Instruction::IntToPtr: - if (!TD) break; // Without TD we can't analyze pointers. - return getTruncateOrZeroExtend(getSCEV(U->getOperand(0)), - TD->getIntPtrType()); - - case Instruction::PtrToInt: - if (!TD) break; // Without TD we can't analyze pointers. - return getTruncateOrZeroExtend(getSCEV(U->getOperand(0)), - U->getType()); + // It's tempting to handle inttoptr and ptrtoint, however this can + // lead to pointer expressions which cannot be expanded to GEPs + // (because they may overflow). For now, the only pointer-typed + // expressions we handle are GEPs and address literals. case Instruction::GetElementPtr: if (!TD) break; // Without TD we can't analyze pointers. |
