diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/SimplifyIndVar.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyIndVar.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp index c7ec1bc..58715fa 100644 --- a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp @@ -333,6 +333,9 @@ bool SimplifyIndvar::eliminateIdentitySCEV(Instruction *UseInst, if (!DT || !DT->dominates(IVOperand, UseInst)) return false; + if (!LI->replacementPreservesLCSSAForm(UseInst, IVOperand)) + return false; + DEBUG(dbgs() << "INDVARS: Eliminated identity: " << *UseInst << '\n'); UseInst->replaceAllUsesWith(IVOperand); |