diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/GVN.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/GVN.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/Scalar/GVN.cpp b/llvm/lib/Transforms/Scalar/GVN.cpp index 0e1e6f32e4c..759e681f5e8 100644 --- a/llvm/lib/Transforms/Scalar/GVN.cpp +++ b/llvm/lib/Transforms/Scalar/GVN.cpp @@ -1190,8 +1190,10 @@ static Value *ConstructSSAForLoadSet(LoadInst *LI, // escaping uses to any values that are operands to these PHIs. for (unsigned i = 0, e = NewPHIs.size(); i != e; ++i) { PHINode *P = NewPHIs[i]; - for (unsigned ii = 0, ee = P->getNumIncomingValues(); ii != ee; ++ii) - AA->addEscapingUse(P->getOperandUse(2*ii)); + for (unsigned ii = 0, ee = P->getNumIncomingValues(); ii != ee; ++ii) { + unsigned jj = PHINode::getOperandNumForIncomingValue(ii); + AA->addEscapingUse(P->getOperandUse(jj)); + } } } @@ -2149,8 +2151,11 @@ bool GVN::performPRE(Function &F) { // Because we have added a PHI-use of the pointer value, it has now // "escaped" from alias analysis' perspective. We need to inform // AA of this. - for (unsigned ii = 0, ee = Phi->getNumIncomingValues(); ii != ee; ++ii) - VN.getAliasAnalysis()->addEscapingUse(Phi->getOperandUse(2*ii)); + for (unsigned ii = 0, ee = Phi->getNumIncomingValues(); ii != ee; + ++ii) { + unsigned jj = PHINode::getOperandNumForIncomingValue(ii); + VN.getAliasAnalysis()->addEscapingUse(Phi->getOperandUse(jj)); + } if (MD) MD->invalidateCachedPointerInfo(Phi); |
