diff options
Diffstat (limited to 'lib/Transforms/Utils/Local.cpp')
| -rw-r--r-- | lib/Transforms/Utils/Local.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp index 0b48a8f..8e91138 100644 --- a/lib/Transforms/Utils/Local.cpp +++ b/lib/Transforms/Utils/Local.cpp @@ -306,7 +306,7 @@ bool llvm::SimplifyInstructionsInBlock(BasicBlock *BB, const TargetData *TD) { WeakVH BIHandle(BI); ReplaceAndSimplifyAllUses(Inst, V, TD); MadeChange = true; - if (BIHandle == 0) + if (BIHandle != BI) BI = BB->begin(); continue; } @@ -354,12 +354,13 @@ void llvm::RemovePredecessorAndSimplify(BasicBlock *BB, BasicBlock *Pred, // value into all of its uses. assert(PNV != PN && "hasConstantValue broken"); + Value *OldPhiIt = PhiIt; ReplaceAndSimplifyAllUses(PN, PNV, TD); // If recursive simplification ended up deleting the next PHI node we would // iterate to, then our iterator is invalid, restart scanning from the top // of the block. - if (PhiIt == 0) PhiIt = &BB->front(); + if (PhiIt != OldPhiIt) PhiIt = &BB->front(); } } |
