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Implement optimization for direct function call case. This dramatically

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reduces the number of function nodes created and speeds up analysis by
about 10% overall.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5495 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-02-05 21:59:58 +00:00
parent bbe5ac1458
commit 923fc05b3a
13 changed files with 209 additions and 97 deletions
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8
lib/Analysis/DataStructure/Steensgaard.cpp
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@@ -163,8 +163,12 @@ bool Steens::run(Module &M) {
DSCallSite &CurCall = Calls[i];
// Loop over the called functions, eliminating as many as possible...
std::vector<GlobalValue*> CallTargets =
CurCall.getCallee().getNode()->getGlobals();
std::vector<GlobalValue*> CallTargets;
if (CurCall.isDirectCall())
CallTargets.push_back(CurCall.getCalleeFunc());
else
CallTargets = CurCall.getCalleeNode()->getGlobals();
for (unsigned c = 0; c != CallTargets.size(); ) {
// If we can eliminate this function call, do so!
bool Eliminated = false;