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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-03-30 21:28:18 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-03-30 21:28:18 +0000 |
| commit | 0b68b758bbb6718fc67423109eeb9df64c711a37 (patch) | |
| tree | e4755a5946ffdba795e72075abdf24a8a484f1dc /lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | 531ebc8a3cf0fdc5c30d072ab356283ce8dd145f (diff) | |
| download | llvm-0b68b758bbb6718fc67423109eeb9df64c711a37.tar.gz llvm-0b68b758bbb6718fc67423109eeb9df64c711a37.tar.bz2 llvm-0b68b758bbb6718fc67423109eeb9df64c711a37.tar.xz | |
DAGCombine: visitXOR can replace a node without returning it, bail out in that case.
Fixes the crash reported in PR15608.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178429 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 44d43a1d07..d1f476e644 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -6823,9 +6823,9 @@ SDValue DAGCombiner::visitBRCOND(SDNode *N) { MVT::Other, Chain, Tmp, N2); } - // visitXOR has changed XOR's operands. - Op0 = TheXor->getOperand(0); - Op1 = TheXor->getOperand(1); + // visitXOR has changed XOR's operands or replaced the XOR completely, + // bail out. + return SDValue(N, 0); } } |