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authorChris Lattner <sabre@nondot.org>2004-03-04 17:05:28 +0000
committerChris Lattner <sabre@nondot.org>2004-03-04 17:05:28 +0000
commit16437ff7054d745205d8d7ff529d569a26d683c8 (patch)
treefff3038bef2f77ccf961543793121f17043c4564 /lib
parent4acfd039f92fea3b02227020e4e28f2e5db2d92e (diff)
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Minor changes, remove some debugging code that got checked in somehow.
Make sure to scope the NodeMap passed into cloneInto so that it doesn't point to nodes that are deleted. Add some FIXME's for future performance enhancements. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12115 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r--lib/Analysis/DataStructure/BottomUpClosure.cpp17
1 files changed, 10 insertions, 7 deletions
diff --git a/lib/Analysis/DataStructure/BottomUpClosure.cpp b/lib/Analysis/DataStructure/BottomUpClosure.cpp
index 08a5a15..02b27a2 100644
--- a/lib/Analysis/DataStructure/BottomUpClosure.cpp
+++ b/lib/Analysis/DataStructure/BottomUpClosure.cpp
@@ -100,6 +100,9 @@ unsigned BUDataStructures::calculateGraphs(Function *F,
ValMap[F] = Min;
Stack.push_back(F);
+ // FIXME! This test should be generalized to be any function that we have
+ // already processed, in the case when there isn't a main or there are
+ // unreachable functions!
if (F->isExternal()) { // sprintf, fprintf, sscanf, etc...
// No callees!
Stack.pop_back();
@@ -167,6 +170,8 @@ unsigned BUDataStructures::calculateGraphs(Function *F,
// graph sizes.
DSGraph &NFGraph = getDSGraph(*NF);
SCCGraphs.insert(&NFGraph);
+ // FIXME: If we used a better way of cloning graphs (ie, just splice all
+ // of the nodes into the new graph), this would be completely unneeded!
if (!SCCGraph || SCCGraph->getGraphSize() < NFGraph.getGraphSize())
SCCGraph = &NFGraph;
} while (NF != F);
@@ -186,9 +191,11 @@ unsigned BUDataStructures::calculateGraphs(Function *F,
E = SCCGraphs.end(); I != E; ++I) {
DSGraph &G = **I;
if (&G != SCCGraph) {
- DSGraph::NodeMapTy NodeMap;
- SCCGraph->cloneInto(G, SCCGraph->getScalarMap(),
- SCCGraph->getReturnNodes(), NodeMap);
+ {
+ DSGraph::NodeMapTy NodeMap;
+ SCCGraph->cloneInto(G, SCCGraph->getScalarMap(),
+ SCCGraph->getReturnNodes(), NodeMap);
+ }
// Update the DSInfo map and delete the old graph...
for (DSGraph::ReturnNodesTy::iterator I = G.getReturnNodes().begin(),
E = G.getReturnNodes().end(); I != E; ++I)
@@ -278,16 +285,12 @@ void BUDataStructures::calculateGraph(DSGraph &Graph) {
// Get the data structure graph for the called function.
//
DSGraph &GI = getDSGraph(*Callee); // Graph to inline
-
- if (Callee->getName() == "bc_raise")
- std::cerr << "HERE!\n";
DEBUG(std::cerr << " Inlining graph for " << Callee->getName()
<< "[" << GI.getGraphSize() << "+"
<< GI.getAuxFunctionCalls().size() << "] into '"
<< Graph.getFunctionNames() << "' [" << Graph.getGraphSize() << "+"
<< Graph.getAuxFunctionCalls().size() << "]\n");
-
Graph.mergeInGraph(CS, *Callee, GI,
DSGraph::KeepModRefBits |
DSGraph::StripAllocaBit | DSGraph::DontCloneCallNodes);