diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 51aca66eef..1d17473b46 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -1526,12 +1526,6 @@ SDValue DAGCombiner::visitADDE(SDNode *N) { ConstantSDNode *N0C = dyn_cast<ConstantSDNode>(N0); ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1); - // If both operands are null we know that carry out will always be false. - if (N0C && N0C->isNullValue() && N0 == N1) - DAG.ReplaceAllUsesOfValueWith(SDValue(N, 1), DAG.getNode(ISD::CARRY_FALSE, - N->getDebugLoc(), - MVT::Glue)); - // canonicalize constant to RHS if (N0C && !N1C) return DAG.getNode(ISD::ADDE, N->getDebugLoc(), N->getVTList(), |