diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/SimplifyIndVar.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyIndVar.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp index 71cce3e..6617fde 100644 --- a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp @@ -159,11 +159,12 @@ Value *SimplifyIndvar::foldIVUser(Instruction *UseInst, Instruction *IVOperand) D = ConstantInt::get(UseInst->getContext(), APInt::getOneBitSet(BitWidth, D->getZExtValue())); } - FoldedExpr = SE->getUDivExpr(SE->getSCEV(IVSrc), SE->getSCEV(D)); + const auto *LHS = SE->getSCEV(IVSrc); + const auto *RHS = SE->getSCEV(D); + FoldedExpr = SE->getUDivExpr(LHS, RHS); // We might have 'exact' flag set at this point which will no longer be // correct after we make the replacement. - if (UseInst->isExact() && - SE->getSCEV(IVSrc) != SE->getMulExpr(FoldedExpr, SE->getSCEV(D))) + if (UseInst->isExact() && LHS != SE->getMulExpr(FoldedExpr, RHS)) MustDropExactFlag = true; } // We have something that might fold it's operand. Compare SCEVs. |