diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Analysis/ScalarEvolution.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp index 9278aa05dcb..867b0515003 100644 --- a/llvm/lib/Analysis/ScalarEvolution.cpp +++ b/llvm/lib/Analysis/ScalarEvolution.cpp @@ -7199,7 +7199,8 @@ ScalarEvolution::howFarToZero(const SCEV *V, const Loop *L, bool ControlsExit, // compute the backedge count. In this case, the step may not divide the // distance, but we don't care because if the condition is "missed" the loop // will have undefined behavior due to wrapping. - if (ControlsExit && AddRec->hasNoSelfWrap()) { + if (ControlsExit && AddRec->hasNoSelfWrap() && + loopHasNoAbnormalExits(AddRec->getLoop())) { const SCEV *Exact = getUDivExpr(Distance, CountDown ? getNegativeSCEV(Step) : Step); return ExitLimit(Exact, Exact, P); |
