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| author | Nick Lewycky <nicholas@mxc.ca> | 2011-12-08 22:36:35 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2011-12-08 22:36:35 +0000 |
| commit | fe970725cc04f691daf2f9c366011caf0b40006a (patch) | |
| tree | 3673c87292aba7fbf06847d190d29d61017dfa12 /llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp | |
| parent | b96bca81e74b925e5cf50a75e88558b6b49a65b0 (diff) | |
| download | bcm5719-llvm-fe970725cc04f691daf2f9c366011caf0b40006a.tar.gz bcm5719-llvm-fe970725cc04f691daf2f9c366011caf0b40006a.zip | |
Fix infinite loop in DSE when deleting a free in a reachable loop that's also
trivially infinite.
llvm-svn: 146197
Diffstat (limited to 'llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp index b9b1cc86c29..8729019705f 100644 --- a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp +++ b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp @@ -624,6 +624,7 @@ static void FindUnconditionalPreds(SmallVectorImpl<BasicBlock *> &Blocks, BasicBlock *BB, DominatorTree *DT) { for (pred_iterator I = pred_begin(BB), E = pred_end(BB); I != E; ++I) { BasicBlock *Pred = *I; + if (Pred == BB) continue; TerminatorInst *PredTI = Pred->getTerminator(); if (PredTI->getNumSuccessors() != 1) continue; @@ -853,4 +854,3 @@ void DSE::RemoveAccessedObjects(const AliasAnalysis::Location &LoadedLoc, I != E; ++I) DeadStackObjects.erase(*I); } - |
