diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LoopUtils.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopUtils.cpp b/llvm/lib/Transforms/Utils/LoopUtils.cpp index 09e9f1ddc7f..c8efa9efc7f 100644 --- a/llvm/lib/Transforms/Utils/LoopUtils.cpp +++ b/llvm/lib/Transforms/Utils/LoopUtils.cpp @@ -869,8 +869,13 @@ bool InductionDescriptor::isInductionPHI(PHINode *Phi, const Loop *TheLoop, return false; } - assert(TheLoop->getHeader() == Phi->getParent() && - "PHI is an AddRec for a different loop?!"); + if (AR->getLoop() != TheLoop) { + // FIXME: We should treat this as a uniform. Unfortunately, we + // don't currently know how to handled uniform PHIs. + DEBUG(dbgs() << "LV: PHI is a recurrence with respect to an outer loop.\n"); + return false; + } + Value *StartValue = Phi->getIncomingValueForBlock(AR->getLoop()->getLoopPreheader()); const SCEV *Step = AR->getStepRecurrence(*SE); |
