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* Make the DSGraph cloner automatically merge global nodes

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* BUClosure doesn't have to worry about global nodes
 * TDClosure now works with global nodes
 * Reenable DNE on TD pass, now that globals work right


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4220 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2002-10-17 20:09:52 +00:00
parent 1a33e31758
commit cf15db34d3
3 changed files with 15 additions and 47 deletions
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19
lib/Analysis/DataStructure/DataStructure.cpp
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@@ -439,14 +439,25 @@ DSNodeHandle DSGraph::cloneInto(const DSGraph &G,
for (unsigned i = FN, e = Nodes.size(); i != e; ++i)
Nodes[i]->NodeType &= ~StripBits;
// Copy the value map...
// Copy the value map... and merge all of the global nodes...
for (std::map<Value*, DSNodeHandle>::const_iterator I = G.ValueMap.begin(),
E = G.ValueMap.end(); I != E; ++I)
OldValMap[I->first] = DSNodeHandle(OldNodeMap[I->second.getNode()],
I->second.getOffset());
E = G.ValueMap.end(); I != E; ++I) {
DSNodeHandle &H = OldValMap[I->first];
H = DSNodeHandle(OldNodeMap[I->second.getNode()], I->second.getOffset());
if (isa<GlobalValue>(I->first)) { // Is this a global?
std::map<Value*, DSNodeHandle>::iterator GVI = ValueMap.find(I->first);
if (GVI != ValueMap.end()) { // Is the global value in this fun already?
GVI->second.mergeWith(H);
} else {
ValueMap[I->first] = H; // Add global pointer to this graph
}
}
}
// Copy the function calls list...
CopyFunctionCallsList(G.FunctionCalls, FunctionCalls, OldNodeMap);
// Return the returned node pointer...
return DSNodeHandle(OldNodeMap[G.RetNode.getNode()], G.RetNode.getOffset());
}