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[SandboxVec][DAG][NFC] Add comment about duplicate notes in deps() #111915

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merged 1 commit into from
Oct 10, 2024
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[SandboxVec][DAG][NFC] Add comment about duplicate notes in deps() #111915

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4 changes: 4 additions & 0 deletions llvm/include/llvm/Transforms/Vectorize/SandboxVectorizer/DependencyGraph.h
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Original file line number Diff line number Diff line change
Expand Up @@ -122,6 +122,10 @@ class DGNode {
iterator preds_end(DependencyGraph &DAG) const {
return const_cast<DGNode *>(this)->preds_end(DAG);
}
/// \Returns a range of DAG predecessors nodes. If this is a MemDGNode then
/// this will also include the memory dependency predecessors.
/// Please note that this can include the same node more than once, if for
/// example it's both a use-def predecessor and a mem dep predecessor.
iterator_range<iterator> preds(DependencyGraph &DAG) const {
return make_range(preds_begin(DAG), preds_end(DAG));
}
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