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Move a load into the only branch where it is used and eliminate a temporary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122690 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -238,13 +238,11 @@ void Calculate(DominatorTreeBase<typename GraphTraits<NodeT>::NodeType>& DT,
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}
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}
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typename GraphT::NodeType* WParent = DT.Vertex[WInfo.Parent];
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// If V is a non-root vertex and sdom(V) = parent(V), then idom(V) is
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// necessarily parent(V). In this case, set idom(V) here and avoid placing
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// V into a bucket.
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if (WInfo.Semi == WInfo.Parent) {
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DT.IDoms[W] = WParent;
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DT.IDoms[W] = DT.Vertex[WInfo.Parent];
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} else {
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Buckets[i] = Buckets[WInfo.Semi];
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Buckets[WInfo.Semi] = i;
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