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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-05-10 14:09:52 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-05-10 14:09:52 +0000 |
| commit | a5d59333b350ddb512359a65cefd59ced5c49b57 (patch) | |
| tree | bc300facaed5b9fde291ff9b0e6c75e40e482927 /llvm/lib/CodeGen/SelectionDAG | |
| parent | b8c38756180df345534d4c816f648a9d74760f42 (diff) | |
| download | bcm5719-llvm-a5d59333b350ddb512359a65cefd59ced5c49b57.tar.gz bcm5719-llvm-a5d59333b350ddb512359a65cefd59ced5c49b57.zip | |
DAGCombiner: Generate a correct constant for vector types when folding (xor (and)) into (and (not)).
PR15948.
llvm-svn: 181597
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 700ee12072c..c54dffbb132 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -3464,8 +3464,7 @@ SDValue DAGCombiner::visitXOR(SDNode *N) { if (N0.getOpcode() == ISD::AND && N0.getNode()->hasOneUse() && N0->getOperand(1) == N1) { SDValue X = N0->getOperand(0); - SDValue NotX = DAG.getNode(ISD::XOR, X.getDebugLoc(), VT, X, - DAG.getConstant(APInt::getAllOnesValue(VT.getSizeInBits()), VT)); + SDValue NotX = DAG.getNOT(X.getDebugLoc(), X, VT); AddToWorkList(NotX.getNode()); return DAG.getNode(ISD::AND, N->getDebugLoc(), VT, NotX, N1); } |
