diff options
Diffstat (limited to 'llvm/lib/CodeGen/CodeGenPrepare.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/CodeGenPrepare.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp index 6e806b0..e745a37 100644 --- a/llvm/lib/CodeGen/CodeGenPrepare.cpp +++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp @@ -1332,7 +1332,7 @@ getIVIncrement(const PHINode *PN, const LoopInfo *LI) { static bool isIVIncrement(const BinaryOperator *BO, const LoopInfo *LI) { auto *PN = dyn_cast<PHINode>(BO->getOperand(0)); - if (!PN) + if (!PN || LI->getLoopFor(BO->getParent()) != LI->getLoopFor(PN->getParent())) return false; if (auto IVInc = getIVIncrement(PN, LI)) return IVInc->first == BO; @@ -1347,6 +1347,7 @@ bool CodeGenPrepare::replaceMathCmpWithIntrinsic(BinaryOperator *BO, if (!isIVIncrement(BO, LI)) return false; const Loop *L = LI->getLoopFor(BO->getParent()); + assert(L && "L should not be null after isIVIncrement()"); // IV increment may have other users than the IV. We do not want to make // dominance queries to analyze the legality of moving it towards the cmp, // so just check that there is no other users. |