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Make removeTriviallyDeadNodes a private interface of DSGraph

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4659 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-11-09 20:55:24 +00:00
parent 3ce235a161
commit 96517253a1
5 changed files with 7 additions and 8 deletions
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3
lib/Analysis/DataStructure/BottomUpClosure.cpp
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@ -154,10 +154,11 @@ DSGraph &BUDataStructures::calculateGraph(Function &F) {
}
} while (Inlined && !FCs.empty());
#if 0
Graph->maskIncompleteMarkers();
Graph->markIncompleteNodes();
Graph->removeTriviallyDeadNodes(false);
Graph->removeDeadNodes(/*KeepAllGlobals*/ true, /*KeepCalls*/ true);
#endif
DEBUG(std::cerr << " [BU] Done inlining: " << F.getName() << " ["
<< Graph->getGraphSize() << "+" << Graph->getFunctionCalls().size()

3
lib/Analysis/DataStructure/DataStructure.cpp
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@ -772,8 +772,7 @@ static void removeRefsToGlobal(DSNode* N,
//
bool DSGraph::isNodeDead(DSNode *N) {
// Is it a trivially dead shadow node...
if (N->getReferrers().empty() &&
(N->NodeType == 0 || N->NodeType == DSNode::DEAD))
if (N->getReferrers().empty() && (N->NodeType & ~DSNode::DEAD) == 0)
return true;
// Is it a function node or some other trivially unused global?

6
lib/Analysis/DataStructure/Local.cpp
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@ -74,9 +74,6 @@ namespace {
getValueDest(*I);
visit(G.getFunction()); // Single pass over the function
// Not inlining, only eliminate trivially dead nodes.
G.removeTriviallyDeadNodes();
}
private:
@ -135,6 +132,9 @@ DSGraph::DSGraph(Function &F, DSGraph *GG) : Func(&F), GlobalsGraph(GG) {
// Use the graph builder to construct the local version of the graph
GraphBuilder B(*this, Nodes, RetNode, ScalarMap, FunctionCalls);
markIncompleteNodes();
// Remove any nodes made dead due to merging...
removeDeadNodes(true, true);
}

2
lib/Analysis/DataStructure/Steensgaard.cpp
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@ -194,7 +194,7 @@ bool Steens::run(Module &M) {
ResultGraph->markIncompleteNodes(false);
// Remove any nodes that are dead after all of the merging we have done...
ResultGraph->removeTriviallyDeadNodes();
ResultGraph->removeDeadNodes(true, true);
DEBUG(print(std::cerr, &M));
return false;

1
lib/Analysis/DataStructure/TopDownClosure.cpp
View File

@ -180,7 +180,6 @@ void TDDataStructures::calculateGraph(Function &F) {
CG.maskIncompleteMarkers();
CG.markIncompleteNodes(/*markFormals*/ !F.hasInternalLinkage()
/*&& FIXME: NEED TO CHECK IF ALL CALLERS FOUND!*/);
CG.removeTriviallyDeadNodes(false);
CG.removeDeadNodes(false, true) ;///*KeepAllGlobals*/ false, true);
///*KeepCalls*/ false);
}