diff options
Diffstat (limited to 'llvm/lib/Analysis/LoopInfo.cpp')
| -rw-r--r-- | llvm/lib/Analysis/LoopInfo.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/LoopInfo.cpp b/llvm/lib/Analysis/LoopInfo.cpp index 67a82b192e5..07fd6a2ae70 100644 --- a/llvm/lib/Analysis/LoopInfo.cpp +++ b/llvm/lib/Analysis/LoopInfo.cpp @@ -227,9 +227,15 @@ bool Loop::isSafeToClone() const { if (isa<IndirectBrInst>((*I)->getTerminator())) return false; - if (const InvokeInst *II = dyn_cast<InvokeInst>((*I)->getTerminator())) + if (const InvokeInst *II = dyn_cast<InvokeInst>((*I)->getTerminator())) { if (II->cannotDuplicate()) return false; + // Return false if any loop blocks contain invokes to EH-pads other than + // landingpads; we don't know how to split those edges yet. + auto *FirstNonPHI = II->getUnwindDest()->getFirstNonPHI(); + if (FirstNonPHI->isEHPad() && !isa<LandingPadInst>(FirstNonPHI)) + return false; + } for (BasicBlock::iterator BI = (*I)->begin(), BE = (*I)->end(); BI != BE; ++BI) { if (const CallInst *CI = dyn_cast<CallInst>(BI)) { |
