diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/GVN.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/GVN.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/GVN.cpp b/llvm/lib/Transforms/Scalar/GVN.cpp index eb12abe243c..f3aa7960f66 100644 --- a/llvm/lib/Transforms/Scalar/GVN.cpp +++ b/llvm/lib/Transforms/Scalar/GVN.cpp @@ -731,6 +731,7 @@ Value *GVN::performPHIConstruction(BasicBlock *BB, LoadInst* orig, } else { PHINode *PN = new PHINode(orig->getType(), orig->getName()+".rle", BB->begin()); PN->reserveOperandSpace(numPreds); + Phis[BB] = PN; visited.insert(BB); // Fill in the incoming values for the block. @@ -738,7 +739,7 @@ Value *GVN::performPHIConstruction(BasicBlock *BB, LoadInst* orig, if (!visited.count(*PI)) PN->addIncoming(performPHIConstruction(*PI, orig, Phis, visited), *PI); else - PN->addIncoming(PN, *PI); + PN->addIncoming(Phis[*PI], *PI); visited.erase(BB); bool all_same = PN->getNumIncomingValues() != 1; @@ -748,6 +749,7 @@ Value *GVN::performPHIConstruction(BasicBlock *BB, LoadInst* orig, if (all_same) { PN->eraseFromParent(); + Phis[BB] = first; return first; } else { return PN; |
