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[LegalizeDAG] Prune Predecessor check in ExpandExtractFromVectorThroughStack. NFCI.

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llvm-svn: 342985
This commit is contained in:
Nirav Dave 2018-09-25 15:29:57 +00:00
parent b68f8ddcb9
commit 9c9fb30cc3
1 changed files with 1 additions and 0 deletions
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lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -1248,6 +1248,7 @@ SDValue SelectionDAGLegalize::ExpandExtractFromVectorThroughStack(SDValue Op) {
// Caches for hasPredecessorHelper
SmallPtrSet<const SDNode *, 32> Visited;
SmallVector<const SDNode *, 16> Worklist;
Visited.insert(Op.getNode());
Worklist.push_back(Idx.getNode());
SDValue StackPtr, Ch;
for (SDNode::use_iterator UI = Vec.getNode()->use_begin(),