diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index fa0c4661e14..b2525b79807 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -3297,7 +3297,10 @@ SDValue DAGCombiner::visitREM(SDNode *N) { // by skipping the simplification if isIntDivCheap(). When div is not cheap, // combine will not return a DIVREM. Regardless, checking cheapness here // makes sense since the simplification results in fatter code. - if (N1C && !N1C->isNullValue() && !TLI.isIntDivCheap(VT, Attr)) { + // TODO: replace matchUnaryPredicate with SelectionDAG::isKnownNeverZero(N1). + if (ISD::matchUnaryPredicate( + N1, [](ConstantSDNode *C) { return !C->isNullValue(); }) && + !TLI.isIntDivCheap(VT, Attr)) { SDValue OptimizedDiv = isSigned ? visitSDIVLike(N0, N1, N) : visitUDIVLike(N0, N1, N); if (OptimizedDiv.getNode() && OptimizedDiv.getOpcode() != ISD::UDIVREM && |
