add a method to compute a commonly used mapping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20588 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DataStructure/EquivClassGraphs.cpp b/lib/Analysis/DataStructure/EquivClassGraphs.cpp
index 8e69291..58aaf2e 100644
--- a/lib/Analysis/DataStructure/EquivClassGraphs.cpp
+++ b/lib/Analysis/DataStructure/EquivClassGraphs.cpp
@@ -45,13 +45,11 @@
for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
if (!I->isExternal()) {
DSGraph &G = ECGraphs.getDSGraph(*I);
+ if (G.getReturnNodes().begin()->first != I)
+ continue; // Only check a graph once.
DSGraph::NodeMapTy GlobalsGraphNodeMapping;
- for (DSScalarMap::global_iterator I = G.getScalarMap().global_begin(),
- E = G.getScalarMap().global_end(); I != E; ++I)
- DSGraph::computeNodeMapping(G.getNodeForValue(*I),
- GG.getNodeForValue(*I),
- GlobalsGraphNodeMapping);
+ G.computeGlobalGraphMapping(GlobalsGraphNodeMapping);
}
}
#endif