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Remove the ability to keep track of inlined globals, which is always dead.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20716 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-03-20 04:30:30 +00:00
parent 1fd7d4a670
commit cc9bda6a41
1 changed files with 1 additions and 36 deletions
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37
lib/Analysis/DataStructure/DataStructure.cpp
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@ -922,9 +922,6 @@ DSNodeHandle ReachabilityCloner::getClonedNH(const DSNodeHandle &SrcNH) {
assert(DestGNH.getNode() == NH.getNode() &&"Global mapping inconsistent");
Dest.getNodeForValue(GV).mergeWith(DSNodeHandle(DestGNH.getNode(),
DestGNH.getOffset()+SrcGNH.getOffset()));
if (CloneFlags & DSGraph::UpdateInlinedGlobals)
Dest.getInlinedGlobals().insert(GV);
}
NH.getNode()->mergeGlobals(SN->getGlobalsList());
@ -1014,9 +1011,6 @@ void ReachabilityCloner::merge(const DSNodeHandle &NH,
assert(DestGNH.getNode()==NH.getNode() &&"Global mapping inconsistent");
Dest.getNodeForValue(GV).mergeWith(DSNodeHandle(DestGNH.getNode(),
DestGNH.getOffset()+SrcGNH.getOffset()));
if (CloneFlags & DSGraph::UpdateInlinedGlobals)
Dest.getInlinedGlobals().insert(GV);
}
NH.getNode()->mergeGlobals(SN->getGlobalsList());
}
@ -1049,9 +1043,6 @@ void ReachabilityCloner::merge(const DSNodeHandle &NH,
assert(SrcGNH.getNode() == SN && "Global mapping inconsistent");
Dest.getNodeForValue(GV).mergeWith(DSNodeHandle(DestGNH.getNode(),
DestGNH.getOffset()+SrcGNH.getOffset()));
if (CloneFlags & DSGraph::UpdateInlinedGlobals)
Dest.getInlinedGlobals().insert(GV);
}
}
@ -1159,7 +1150,6 @@ DSGraph::DSGraph(const DSGraph &G, NodeMapTy &NodeMap,
DSGraph::~DSGraph() {
FunctionCalls.clear();
AuxFunctionCalls.clear();
InlinedGlobals.clear();
ScalarMap.clear();
ReturnNodes.clear();
@ -1189,28 +1179,6 @@ void DSNode::remapLinks(DSGraph::NodeMapTy &OldNodeMap) {
}
}
/// updateFromGlobalGraph - This function rematerializes global nodes and
/// nodes reachable from them from the globals graph into the current graph.
/// It uses the vector InlinedGlobals to avoid cloning and merging globals that
/// are already up-to-date in the current graph. In practice, in the TD pass,
/// this is likely to be a large fraction of the live global nodes in each
/// function (since most live nodes are likely to have been brought up-to-date
/// in at _some_ caller or callee).
///
void DSGraph::updateFromGlobalGraph() {
TIME_REGION(X, "updateFromGlobalGraph");
ReachabilityCloner RC(*this, *GlobalsGraph, 0);
// Clone the non-up-to-date global nodes into this graph.
for (DSScalarMap::global_iterator I = getScalarMap().global_begin(),
E = getScalarMap().global_end(); I != E; ++I)
if (InlinedGlobals.count(*I) == 0) { // GNode is not up-to-date
DSScalarMap::iterator It = GlobalsGraph->ScalarMap.find(*I);
if (It != GlobalsGraph->ScalarMap.end())
RC.merge(getNodeForValue(*I), It->second);
}
}
/// addObjectToGraph - This method can be used to add global, stack, and heap
/// objects to the graph. This can be used when updating DSGraphs due to the
/// introduction of new temporary objects. The new object is not pointed to
@ -1287,11 +1255,8 @@ void DSGraph::cloneInto(const DSGraph &G, DSScalarMap &OldValMap,
I->second.getOffset()+MappedNode.getOffset()));
// If this is a global, add the global to this fn or merge if already exists
if (GlobalValue* GV = dyn_cast<GlobalValue>(I->first)) {
if (GlobalValue* GV = dyn_cast<GlobalValue>(I->first))
ScalarMap[GV].mergeWith(H);
if (CloneFlags & DSGraph::UpdateInlinedGlobals)
InlinedGlobals.insert(GV);
}
}
if (!(CloneFlags & DontCloneCallNodes)) {