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make -debug-pass=Executions show information about what call graph nodes

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are in the SCC for each execution of a CGSCC pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81838 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-09-15 05:03:04 +00:00
parent 745c9be986
commit 9554c61328
3 changed files with 32 additions and 5 deletions
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5
include/llvm/PassManagers.h
View File

@ -380,6 +380,11 @@ protected:
// then PMT_Last active pass mangers.
std::map<AnalysisID, Pass *> *InheritedAnalysis[PMT_Last];
/// isPassDebuggingExecutionsOrMore - Return true if -debug-pass=Executions
/// or higher is specified.
bool isPassDebuggingExecutionsOrMore() const;
private:
void dumpAnalysisUsage(const StringRef &Msg, const Pass *P,
const AnalysisUsage::VectorType &Set) const;

15
lib/Analysis/IPA/CallGraphSCCPass.cpp
View File

@ -317,7 +317,20 @@ bool CGPassManager::runOnModule(Module &M) {
PassNo != e; ++PassNo) {
Pass *P = getContainedPass(PassNo);
dumpPassInfo(P, EXECUTION_MSG, ON_CG_MSG, "");
// If we're in -debug-pass=Executions mode, construct the SCC node list,
// otherwise avoid constructing this string as it is expensive.
if (isPassDebuggingExecutionsOrMore()) {
std::string Functions;
#ifndef NDEBUG
raw_string_ostream OS(Functions);
for (unsigned i = 0, e = CurSCC.size(); i != e; ++i) {
if (i) OS << ", ";
CurSCC[i]->print(OS);
}
OS.flush();
#endif
dumpPassInfo(P, EXECUTION_MSG, ON_CG_MSG, Functions);
}
dumpRequiredSet(P);
initializeAnalysisImpl(P);

17
lib/VMCore/PassManager.cpp
View File

@ -67,6 +67,15 @@ PassDebugging("debug-pass", cl::Hidden,
clEnumValEnd));
} // End of llvm namespace
/// isPassDebuggingExecutionsOrMore - Return true if -debug-pass=Executions
/// or higher is specified.
bool PMDataManager::isPassDebuggingExecutionsOrMore() const {
return PassDebugging >= Executions;
}
void PassManagerPrettyStackEntry::print(raw_ostream &OS) const {
if (V == 0 && M == 0)
OS << "Releasing pass '";
@ -1044,7 +1053,7 @@ void PMDataManager::dumpPassInfo(Pass *P, enum PassDebuggingString S1,
errs() << "' on Loop '" << Msg << "'...\n";
break;
case ON_CG_MSG:
errs() << "' on Call Graph '" << Msg << "'...\n";
errs() << "' on Call Graph Nodes '" << Msg << "'...\n";
break;
default:
break;
@ -1076,10 +1085,10 @@ void PMDataManager::dumpAnalysisUsage(const StringRef &Msg, const Pass *P,
return;
errs() << (void*)P << std::string(getDepth()*2+3, ' ') << Msg << " Analyses:";
for (unsigned i = 0; i != Set.size(); ++i) {
if (i) errs() << ",";
errs() << " " << Set[i]->getPassName();
if (i) errs() << ',';
errs() << ' ' << Set[i]->getPassName();
}
errs() << "\n";
errs() << '\n';
}
/// Add RequiredPass into list of lower level passes required by pass P.