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Eliminate the call to removeTriviallyDeadNodes from updateFromGlobals graph,
moving it to the start of removeDeadNodes. This speeds up DSA by 2s on perlbmk from 41s git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10999 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1071,9 +1071,6 @@ void DSGraph::updateFromGlobalGraph() {
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if (It != GlobalsGraph->ScalarMap.end())
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if (It != GlobalsGraph->ScalarMap.end())
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RC.merge(getNodeForValue(*I), It->second);
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RC.merge(getNodeForValue(*I), It->second);
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}
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}
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// Merging global nodes leaves behind unused nodes: get rid of them now.
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removeTriviallyDeadNodes();
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}
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}
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/// cloneInto - Clone the specified DSGraph into the current graph. The
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/// cloneInto - Clone the specified DSGraph into the current graph. The
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@ -1597,7 +1594,7 @@ void DSGraph::removeDeadNodes(unsigned Flags) {
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// Reduce the amount of work we have to do... remove dummy nodes left over by
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// Reduce the amount of work we have to do... remove dummy nodes left over by
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// merging...
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// merging...
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//removeTriviallyDeadNodes();
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removeTriviallyDeadNodes();
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TIME_REGION(X, "removeDeadNodes");
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TIME_REGION(X, "removeDeadNodes");
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