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| author | Bill Wendling <isanbard@gmail.com> | 2010-04-20 01:25:01 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2010-04-20 01:25:01 +0000 |
| commit | 86c5abb4c0edfffdd24729e142a62b9b949f025d (patch) | |
| tree | b66deb0a233f200e86bbf885dea7e6ee9394c7fa /lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | d7aba875c14dd512ff19458c28dc0ea5681ef86a (diff) | |
The visitXOR method can return the same SDNode. If so, we don't want to delete
it as it's not dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101855 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index f15c121668..7ece6e8521 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -4911,7 +4911,7 @@ SDValue DAGCombiner::visitBRCOND(SDNode *N) { if (Op0.getOpcode() == Op1.getOpcode()) { // Avoid missing important xor optimizations. SDValue Tmp = visitXOR(TheXor); - if (Tmp.getNode()) { + if (Tmp.getNode() && Tmp.getNode() != TheXor) { DEBUG(dbgs() << "\nReplacing.8 "; TheXor->dump(&DAG); dbgs() << "\nWith: "; |