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Make block and function count available via ProfileInfo.

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- Part of optimal static profiling patch sequence by Andreas Neustifter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78247 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar
2009-08-05 21:51:16 +00:00
parent b341577401
commit c9008c5cc7
4 changed files with 28 additions and 10 deletions
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18
lib/Analysis/ProfileInfoLoaderPass.cpp
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@ -72,21 +72,29 @@ bool LoaderPass::runOnModule(Module &M) {
EdgeCounts.clear();
std::vector<unsigned> ECs = PIL.getRawEdgeCounts();
std::vector<unsigned> BCs = PIL.getRawBlockCounts();
std::vector<unsigned> FCs = PIL.getRawFunctionCounts();
// Instrument all of the edges...
unsigned i = 0;
for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F)
unsigned ei = 0;
unsigned bi = 0;
unsigned fi = 0;
for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F) {
if (F->isDeclaration()) continue;
if (fi<FCs.size()) FunctionCounts[F] = FCs[fi++];
for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {
if (bi<BCs.size()) BlockCounts[BB] = BCs[bi++];
// Okay, we have to add a counter of each outgoing edge. If the
// outgoing edge is not critical don't split it, just insert the counter
// in the source or destination of the edge.
TerminatorInst *TI = BB->getTerminator();
for (unsigned s = 0, e = TI->getNumSuccessors(); s != e; ++s) {
if (i < ECs.size())
EdgeCounts[std::make_pair(BB, TI->getSuccessor(s))]+= ECs[i++];
if (ei < ECs.size())
EdgeCounts[std::make_pair(BB, TI->getSuccessor(s))]+= ECs[ei++];
}
}
}
if (i != ECs.size()) {
if (ei != ECs.size()) {
cerr << "WARNING: profile information is inconsistent with "
<< "the current program!\n";
}