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Keep track of Last user of analysis phase.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31721 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2006-11-14 02:54:23 +00:00
parent b899eed1bc
commit 03153c70de
1 changed files with 36 additions and 24 deletions
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60
lib/VMCore/PassManager.cpp
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@ -64,6 +64,7 @@ public:
void clearAnalysis() {
RequiredAnalysis.clear();
AvailableAnalysis.clear();
LastUser.clear();
}
// All Required analyses should be available to the pass as it runs! Here
@ -81,6 +82,8 @@ public:
return PassVector.end();
}
inline void setLastUser(Pass *P, Pass *LU) { LastUser[P] = LU; }
private:
// Analysis required by the passes managed by this manager. This information
// used while selecting pass manager during addPass. If a pass does not
@ -94,6 +97,10 @@ private:
// scheduled to run.
std::map<AnalysisID, Pass*> AvailableAnalysis;
// Map to keep track of last user of the analysis pass.
// LastUser->second is the last user of Lastuser->first.
std::map<Pass *, Pass *> LastUser;
// Collection of pass that are managed by this manager
std::vector<Pass *> PassVector;
};
@ -114,7 +121,7 @@ public:
bool runOnFunction(Function &F);
/// Return true IFF AnalysisID AID is currently available.
bool analysisCurrentlyAvailable(AnalysisID AID);
Pass *getAnalysisPassFromManager(AnalysisID AID);
private:
};
@ -147,7 +154,7 @@ public:
bool runOnModule(Module &M);
/// Return true IFF AnalysisID AID is currently available.
bool analysisCurrentlyAvailable(AnalysisID AID);
Pass *getAnalysisPassFromManager(AnalysisID AID);
private:
// Active Pass Managers
@ -170,7 +177,7 @@ public:
bool runOnModule(Module &M);
/// Return true IFF AnalysisID AID is currently available.
bool analysisCurrentlyAvailable(AnalysisID AID);
Pass *getAnalysisPassFromManager(AnalysisID AID);
private:
// Active Pass Manager
@ -193,7 +200,7 @@ public:
bool run(Module &M);
/// Return true IFF AnalysisID AID is currently available.
bool analysisCurrentlyAvailable(AnalysisID AID);
Pass *getAnalysisPassFromManager(AnalysisID AID);
private:
@ -348,8 +355,8 @@ BasicBlockPassManager_New::runOnFunction(Function &F) {
}
/// Return true IFF AnalysisID AID is currently available.
bool BasicBlockPassManager_New::analysisCurrentlyAvailable(AnalysisID AID) {
return (getAnalysisPass(AID) != 0);
Pass * BasicBlockPassManager_New::getAnalysisPassFromManager(AnalysisID AID) {
return getAnalysisPass(AID);
}
// FunctionPassManager_New implementation
@ -438,17 +445,18 @@ FunctionPassManagerImpl_New::runOnModule(Module &M) {
}
/// Return true IFF AnalysisID AID is currently available.
bool FunctionPassManagerImpl_New::analysisCurrentlyAvailable(AnalysisID AID) {
Pass *FunctionPassManagerImpl_New::getAnalysisPassFromManager(AnalysisID AID) {
if (getAnalysisPass(AID) != 0)
return true;
Pass *P = getAnalysisPass(AID);
if (P)
return P;
if (activeBBPassManager &&
activeBBPassManager->getAnalysisPass(AID) != 0)
return true;
return activeBBPassManager->getAnalysisPass(AID);
// TODO : Check inactive managers
return false;
return NULL;
}
// ModulePassManager implementation
@ -512,27 +520,29 @@ ModulePassManager_New::runOnModule(Module &M) {
}
/// Return true IFF AnalysisID AID is currently available.
bool ModulePassManager_New::analysisCurrentlyAvailable(AnalysisID AID) {
Pass *ModulePassManager_New::getAnalysisPassFromManager(AnalysisID AID) {
if (getAnalysisPass(AID) != 0)
return true;
Pass *P = getAnalysisPass(AID);
if (P)
return P;
if (activeFunctionPassManager &&
activeFunctionPassManager->getAnalysisPass(AID) != 0)
return true;
return activeFunctionPassManager->getAnalysisPass(AID);
// TODO : Check inactive managers
return false;
return NULL;
}
/// Return true IFF AnalysisID AID is currently available.
bool PassManagerImpl_New::analysisCurrentlyAvailable(AnalysisID AID) {
Pass *PassManagerImpl_New::getAnalysisPassFromManager(AnalysisID AID) {
bool available = false;
Pass *P = NULL;
for (std::vector<ModulePassManager_New *>::iterator itr = PassManagers.begin(),
e = PassManagers.end(); !available && itr != e; ++itr)
available = (*itr)->analysisCurrentlyAvailable(AID);
return available;
e = PassManagers.end(); !P && itr != e; ++itr)
P = (*itr)->getAnalysisPassFromManager(AID);
return P;
}
/// Schedule pass P for execution. Make sure that passes required by
@ -546,11 +556,13 @@ void PassManagerImpl_New::schedulePass(Pass *P) {
for (std::vector<AnalysisID>::const_iterator I = RequiredSet.begin(),
E = RequiredSet.end(); I != E; ++I) {
if (!analysisCurrentlyAvailable(*I)) {
Pass *AnalysisPass = getAnalysisPassFromManager(*I);
if (!AnalysisPass) {
// Schedule this analysis run first.
Pass *AP = (*I)->createPass();
schedulePass(AP);
AnalysisPass = (*I)->createPass();
schedulePass(AnalysisPass);
}
setLastUser (AnalysisPass, P);
}
addPass(P);