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Switch the allnodes list from a vector of pointers to an ilist of nodes.This eliminates the vector, allows constant time removal of a node froma graph, and makes iteration over the all nodes list stable when adding

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nodes to the graph.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24263 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-11-09 23:47:37 +00:00
parent b80e2be889
commit de202b3cda
4 changed files with 37 additions and 46 deletions
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4
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -514,7 +514,9 @@ void DAGCombiner::Run(bool RunningAfterLegalize) {
AfterLegalize = RunningAfterLegalize;
// Add all the dag nodes to the worklist.
WorkList.insert(WorkList.end(), DAG.allnodes_begin(), DAG.allnodes_end());
for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(),
E = DAG.allnodes_end(); I != E; ++I)
WorkList.push_back(I);
// Create a dummy node (which is not added to allnodes), that adds a reference
// to the root node, preventing it from being deleted, and tracking any