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Extend the StartPassTimer and StopPassTimer functions so that the

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code that stops the timer doesn't have to search to find the timer
object before it stops the timer. This avoids a lock acquisition
and a few other things done with the timer running.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82949 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-09-28 00:07:05 +00:00
parent 6a2fa325c1
commit 5c12adaa8b
4 changed files with 29 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
lib/Analysis/IPA/CallGraphSCCPass.cpp
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@@ -96,9 +96,9 @@ bool CGPassManager::RunPassOnSCC(Pass *P, std::vector<CallGraphNode*> &CurSCC,
CallGraphUpToDate = true;
}
StartPassTimer(CGSP);
Timer *T = StartPassTimer(CGSP);
Changed = CGSP->runOnSCC(CurSCC);
StopPassTimer(CGSP);
StopPassTimer(CGSP, T);
// After the CGSCCPass is done, when assertions are enabled, use
// RefreshCallGraph to verify that the callgraph was correctly updated.
@@ -110,7 +110,6 @@ bool CGPassManager::RunPassOnSCC(Pass *P, std::vector<CallGraphNode*> &CurSCC,
return Changed;
}
StartPassTimer(P);
FPPassManager *FPP = dynamic_cast<FPPassManager *>(P);
assert(FPP && "Invalid CGPassManager member");
@@ -118,10 +117,11 @@ bool CGPassManager::RunPassOnSCC(Pass *P, std::vector<CallGraphNode*> &CurSCC,
for (unsigned i = 0, e = CurSCC.size(); i != e; ++i) {
if (Function *F = CurSCC[i]->getFunction()) {
dumpPassInfo(P, EXECUTION_MSG, ON_FUNCTION_MSG, F->getName());
Timer *T = StartPassTimer(FPP);
Changed |= FPP->runOnFunction(*F);
StopPassTimer(FPP, T);
}
}
StopPassTimer(P);
// The function pass(es) modified the IR, they may have clobbered the
// callgraph.