diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 5dbe29f5fbd..cd6d33ffa9e 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -3104,7 +3104,7 @@ SDValue DAGCombiner::visitSUB(SDNode *N) { DAG.getNode(ISD::SUB, DL, VT, N1.getOperand(1), N1.getOperand(0))); - // A - (A & (B - 1)) -> A & (0 - B) + // A - (A & (B - 1)) -> A & (~(B - 1)) -> A & (0 - B) if (N1.getOpcode() == ISD::AND && N1.hasOneUse()) { SDValue A = N1.getOperand(0); SDValue BDec = N1.getOperand(1); |
