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| author | Dan Gohman <gohman@apple.com> | 2010-01-14 03:08:49 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-01-14 03:08:49 +0000 |
| commit | ff00a555171cac0a77c0434fd85ff5a0ae672ade (patch) | |
| tree | af8040fcd5ea1a342a6aa23a2074e4afa2b9b713 /lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | e8f422b9f39af1d2c141c101f8ca95409d708814 (diff) | |
Fix a codegen abort seen in 483.xalancbmk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93417 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 69a7a9789a..549527c1a3 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -1684,6 +1684,9 @@ SDValue DAGCombiner::SimplifyBinOpWithSameOpcodeHands(SDNode *N) { EVT VT = N0.getValueType(); assert(N0.getOpcode() == N1.getOpcode() && "Bad input!"); + // Bail early if none of these transforms apply. + if (N0.getNode()->getNumOperands() == 0) return SDValue(); + // For each of OP in AND/OR/XOR: // fold (OP (zext x), (zext y)) -> (zext (OP x, y)) // fold (OP (sext x), (sext y)) -> (sext (OP x, y)) |