diff options
| 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 | 768ebcdf631baa1b18dc65a5983a237b307a99c2 (patch) | |
| tree | f15c5d03fd7d8385fa12f56be297f252b2ab785f /lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | 51dab6e3945a6d06a713869967ced3a8f9fb6294 (diff) | |
DAGCombiner: Generate a correct constant for vector types when folding (xor (and)) into (and (not)).
PR15948.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181597 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, 1 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 700ee12072..c54dffbb13 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/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); } |