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Don't call getAnalysisUsage unless -debug-pass is enabled. This speeds

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up the passmgr by avoiding useless work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54528 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-08-08 15:14:09 +00:00
parent e1a4eda990
commit 0dabb7e8f3
4 changed files with 45 additions and 33 deletions
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7
include/llvm/PassManagers.h
View File

@ -308,8 +308,8 @@ public:
void dumpPassArguments() const;
void dumpPassInfo(Pass *P, enum PassDebuggingString S1,
enum PassDebuggingString S2, const char *Msg);
void dumpAnalysisSetInfo(const char *Msg, Pass *P,
const AnalysisUsage::VectorType &Set) const;
void dumpRequiredSet(const Pass *P) const;
void dumpPreservedSet(const Pass *P) const;
virtual unsigned getNumContainedPasses() const {
return (unsigned)PassVector.size();
@ -346,6 +346,9 @@ protected:
std::map<AnalysisID, Pass *> *InheritedAnalysis[PMT_Last];
private:
void dumpAnalysisUsage(const char *Msg, const Pass *P,
const AnalysisUsage::VectorType &Set) const;
// Set of available Analysis. This information is used while scheduling
// pass. If a pass requires an analysis which is not not available then
// equired analysis pass is scheduled to run before the pass itself is

6
lib/Analysis/IPA/CallGraphSCCPass.cpp
View File

@ -91,11 +91,9 @@ bool CGPassManager::runOnModule(Module &M) {
// Run all passes on current SCC
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
Pass *P = getContainedPass(Index);
AnalysisUsage AnUsage;
P->getAnalysisUsage(AnUsage);
dumpPassInfo(P, EXECUTION_MSG, ON_CG_MSG, "");
dumpAnalysisSetInfo("Required", P, AnUsage.getRequiredSet());
dumpRequiredSet(P);
initializeAnalysisImpl(P);
@ -120,7 +118,7 @@ bool CGPassManager::runOnModule(Module &M) {
if (Changed)
dumpPassInfo(P, MODIFICATION_MSG, ON_CG_MSG, "");
dumpAnalysisSetInfo("Preserved", P, AnUsage.getPreservedSet());
dumpPreservedSet(P);
verifyPreservedAnalysis(P);
removeNotPreservedAnalysis(P);

6
lib/Analysis/LoopPass.cpp
View File

@ -214,11 +214,9 @@ bool LPPassManager::runOnFunction(Function &F) {
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
Pass *P = getContainedPass(Index);
AnalysisUsage AnUsage;
P->getAnalysisUsage(AnUsage);
dumpPassInfo(P, EXECUTION_MSG, ON_LOOP_MSG, "");
dumpAnalysisSetInfo("Required", P, AnUsage.getRequiredSet());
dumpRequiredSet(P);
initializeAnalysisImpl(P);
@ -230,7 +228,7 @@ bool LPPassManager::runOnFunction(Function &F) {
if (Changed)
dumpPassInfo(P, MODIFICATION_MSG, ON_LOOP_MSG, "");
dumpAnalysisSetInfo("Preserved", P, AnUsage.getPreservedSet());
dumpPreservedSet(P);
verifyPreservedAnalysis(LP);
removeNotPreservedAnalysis(P);

59
lib/VMCore/PassManager.cpp
View File

@ -954,17 +954,38 @@ void PMDataManager::dumpPassInfo(Pass *P, enum PassDebuggingString S1,
}
}
void PMDataManager::dumpAnalysisSetInfo(const char *Msg, Pass *P,
void PMDataManager::dumpRequiredSet(const Pass *P)
const {
if (PassDebugging < Details)
return;
AnalysisUsage analysisUsage;
P->getAnalysisUsage(analysisUsage);
dumpAnalysisUsage("Required", P, analysisUsage.getRequiredSet());
}
void PMDataManager::dumpPreservedSet(const Pass *P)
const {
if (PassDebugging < Details)
return;
AnalysisUsage analysisUsage;
P->getAnalysisUsage(analysisUsage);
dumpAnalysisUsage("Preserved", P, analysisUsage.getPreservedSet());
}
void PMDataManager::dumpAnalysisUsage(const char *Msg, const Pass *P,
const AnalysisUsage::VectorType &Set)
const {
if (PassDebugging >= Details && !Set.empty()) {
cerr << (void*)P << std::string(getDepth()*2+3, ' ') << Msg << " Analyses:";
for (unsigned i = 0; i != Set.size(); ++i) {
if (i) cerr << ",";
cerr << " " << Set[i]->getPassName();
}
cerr << "\n";
}
assert(PassDebugging >= Details);
if (Set.empty())
return;
cerr << (void*)P << std::string(getDepth()*2+3, ' ') << Msg << " Analyses:";
for (unsigned i = 0; i != Set.size(); ++i) {
if (i) cerr << ",";
cerr << " " << Set[i]->getPassName();
}
cerr << "\n";
}
/// Add RequiredPass into list of lower level passes required by pass P.
@ -1031,11 +1052,9 @@ BBPassManager::runOnFunction(Function &F) {
for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I)
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
BasicBlockPass *BP = getContainedPass(Index);
AnalysisUsage AnUsage;
BP->getAnalysisUsage(AnUsage);
dumpPassInfo(BP, EXECUTION_MSG, ON_BASICBLOCK_MSG, I->getNameStart());
dumpAnalysisSetInfo("Required", BP, AnUsage.getRequiredSet());
dumpRequiredSet(BP);
initializeAnalysisImpl(BP);
@ -1046,7 +1065,7 @@ BBPassManager::runOnFunction(Function &F) {
if (Changed)
dumpPassInfo(BP, MODIFICATION_MSG, ON_BASICBLOCK_MSG,
I->getNameStart());
dumpAnalysisSetInfo("Preserved", BP, AnUsage.getPreservedSet());
dumpPreservedSet(BP);
verifyPreservedAnalysis(BP);
removeNotPreservedAnalysis(BP);
@ -1232,11 +1251,8 @@ bool FPPassManager::runOnFunction(Function &F) {
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
FunctionPass *FP = getContainedPass(Index);
AnalysisUsage AnUsage;
FP->getAnalysisUsage(AnUsage);
dumpPassInfo(FP, EXECUTION_MSG, ON_FUNCTION_MSG, F.getNameStart());
dumpAnalysisSetInfo("Required", FP, AnUsage.getRequiredSet());
dumpRequiredSet(FP);
initializeAnalysisImpl(FP);
@ -1246,7 +1262,7 @@ bool FPPassManager::runOnFunction(Function &F) {
if (Changed)
dumpPassInfo(FP, MODIFICATION_MSG, ON_FUNCTION_MSG, F.getNameStart());
dumpAnalysisSetInfo("Preserved", FP, AnUsage.getPreservedSet());
dumpPreservedSet(FP);
verifyPreservedAnalysis(FP);
removeNotPreservedAnalysis(FP);
@ -1304,12 +1320,9 @@ MPPassManager::runOnModule(Module &M) {
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
ModulePass *MP = getContainedPass(Index);
AnalysisUsage AnUsage;
MP->getAnalysisUsage(AnUsage);
dumpPassInfo(MP, EXECUTION_MSG, ON_MODULE_MSG,
M.getModuleIdentifier().c_str());
dumpAnalysisSetInfo("Required", MP, AnUsage.getRequiredSet());
dumpRequiredSet(MP);
initializeAnalysisImpl(MP);
@ -1320,7 +1333,7 @@ MPPassManager::runOnModule(Module &M) {
if (Changed)
dumpPassInfo(MP, MODIFICATION_MSG, ON_MODULE_MSG,
M.getModuleIdentifier().c_str());
dumpAnalysisSetInfo("Preserved", MP, AnUsage.getPreservedSet());
dumpPreservedSet(MP);
verifyPreservedAnalysis(MP);
removeNotPreservedAnalysis(MP);