diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index be306c09650..bba223ec200 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -9593,6 +9593,10 @@ bool DAGCombiner::CombineToPreIndexedLoadStore(SDNode *N) { return false; } + // Caches for hasPredecessorHelper. + SmallPtrSet<const SDNode *, 32> Visited; + SmallVector<const SDNode *, 16> Worklist; + // If the offset is a constant, there may be other adds of constants that // can be folded with this one. We should do this to avoid having to keep // a copy of the original base pointer. @@ -9607,7 +9611,7 @@ bool DAGCombiner::CombineToPreIndexedLoadStore(SDNode *N) { if (Use.getUser() == Ptr.getNode() || Use != BasePtr) continue; - if (Use.getUser()->isPredecessorOf(N)) + if (N->hasPredecessorHelper(Use.getUser(), Visited, Worklist)) continue; if (Use.getUser()->getOpcode() != ISD::ADD && @@ -9637,10 +9641,6 @@ bool DAGCombiner::CombineToPreIndexedLoadStore(SDNode *N) { // Now check for #3 and #4. bool RealUse = false; - // Caches for hasPredecessorHelper - SmallPtrSet<const SDNode *, 32> Visited; - SmallVector<const SDNode *, 16> Worklist; - for (SDNode *Use : Ptr.getNode()->uses()) { if (Use == N) continue; |
