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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 | dd5286dc63fe3e2e85d03066147e94d7f12d1f0a (patch) | |
| tree | a485983caddcffbcefa6a1b3d60bc9014076b869 /llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | 0a7d9305f108c41daf2eb407eee56528a33cff8d (diff) | |
| download | bcm5719-llvm-dd5286dc63fe3e2e85d03066147e94d7f12d1f0a.tar.gz bcm5719-llvm-dd5286dc63fe3e2e85d03066147e94d7f12d1f0a.zip | |
Fix a codegen abort seen in 483.xalancbmk.
llvm-svn: 93417
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 69a7a9789a4..549527c1a3f 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/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)) |
