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Setup pass manager before scheduling required analysis.

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llvm-svn: 33262
This commit is contained in:
Devang Patel 2007-01-16 19:46:09 +00:00
parent 52170cb5e8
commit afc2e45d40
2 changed files with 74 additions and 55 deletions
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11
include/llvm/Pass.h
View File

@ -108,6 +108,8 @@ public:
void dump() const; // dump - call print(std::cerr, 0);
virtual void assignPassManager(PMStack &PMS) {}
virtual void setupPassManager(PMStack &PMS) {}
// Access AnalysisResolver
inline void setResolver(AnalysisResolver *AR) { Resolver = AR; }
inline AnalysisResolver *getResolver() { return Resolver; }
@ -201,6 +203,7 @@ public:
virtual bool runPass(BasicBlock&) { return false; }
virtual void assignPassManager(PMStack &PMS);
// Force out-of-line virtual method.
virtual ~ModulePass();
};
@ -267,6 +270,7 @@ public:
bool run(Function &F);
virtual void assignPassManager(PMStack &PMS);
virtual void setupPassManager(PMStack &PMS);
};
@ -321,6 +325,7 @@ public:
virtual bool runPass(BasicBlock &BB);
virtual void assignPassManager(PMStack &PMS);
virtual void setupPassManager(PMStack &PMS);
};
/// Different types of internal pass managers. External pass managers
@ -337,8 +342,10 @@ enum PassManagerType {
/// PMStack
/// Top level pass manager (see PasManager.cpp) maintains active Pass Managers
/// using PMStack. Each Pass implements assignPassManager() to connect itself
/// with appropriate manager. assignPassManager() walks PMStack to find
/// using PMStack. Each Pass implements setupPassManager() and
/// assignPassManager() to connect itself with appropriate manager.
/// setupPassManager() creates new pass manager if required before adding
/// required analysis passes. assignPassManager() walks PMStack to find
/// suitable manager.
///
/// PMStack is just a wrapper around standard deque that overrides pop() and

118
lib/VMCore/PassManager.cpp
View File

@ -366,8 +366,7 @@ void PMTopLevelManager::collectLastUses(std::vector<Pass *> &LastUses,
/// the manager. Remove dead passes. This is a recursive function.
void PMTopLevelManager::schedulePass(Pass *P) {
// TODO : Allocate function manager for this pass, other wise required set
// may be inserted into previous function manager
P->setupPassManager(activeStack);
AnalysisUsage AnUsage;
P->getAnalysisUsage(AnUsage);
@ -1218,47 +1217,55 @@ void ModulePass::assignPassManager(PMStack &PMS) {
MPP->add(this);
}
/// Find appropriate Function Pass Manager or Call Graph Pass Manager
/// in the PM Stack and add self into that manager.
void FunctionPass::assignPassManager(PMStack &PMS) {
/// Setup Pass Manager in advance before checking availability of
/// required analysis passes.
void FunctionPass::setupPassManager(PMStack &PMS) {
// Find Module Pass Manager (TODO : Or Call Graph Pass Manager)
while(!PMS.empty()) {
if (PMS.top()->getPassManagerType() > PMT_FunctionPassManager)
PMS.pop();
else
break;
}
FPPassManager *FPP = dynamic_cast<FPPassManager *>(PMS.top());
// Create new Function Pass Manager
if (!FPP) {
assert(!PMS.empty() && "Unable to create Function Pass Manager");
PMDataManager *PMD = PMS.top();
// [1] Create new Function Pass Manager
FPP = new FPPassManager(PMD->getDepth() + 1);
// [2] Set up new manager's top level manager
PMTopLevelManager *TPM = PMD->getTopLevelManager();
TPM->addIndirectPassManager(FPP);
// [3] Assign manager to manage this new manager. This may create
// and push new managers into PMS
Pass *P = dynamic_cast<Pass *>(FPP);
P->assignPassManager(PMS);
// [4] Push new manager into PMS
PMS.push(FPP);
break;
}
// Assign FPP as the manager of this pass.
FPP->add(this);
assert(!PMS.empty() && "Unable to create Function Pass Manager");
if (PMS.top()->getPassManagerType() == PMT_FunctionPassManager
|| PMS.top()->getPassManagerType() == PMT_CallGraphPassManager)
return;
PMDataManager *PMD = PMS.top();
// [1] Create new Function Pass Manager
FPPassManager *FPP = new FPPassManager(PMD->getDepth() + 1);
// [2] Set up new manager's top level manager
PMTopLevelManager *TPM = PMD->getTopLevelManager();
TPM->addIndirectPassManager(FPP);
// [3] Assign manager to manage this new manager. This may create
// and push new managers into PMS
Pass *P = dynamic_cast<Pass *>(FPP);
P->assignPassManager(PMS);
// [4] Push new manager into PMS
PMS.push(FPP);
}
/// Find appropriate Basic Pass Manager or Call Graph Pass Manager
/// Find appropriate Function Pass Manager or Call Graph Pass Manager
/// in the PM Stack and add self into that manager.
void BasicBlockPass::assignPassManager(PMStack &PMS) {
void FunctionPass::assignPassManager(PMStack &PMS) {
PMDataManager *PMD = dynamic_cast<PMDataManager *>(PMS.top());
assert(PMD && "Unable to assign Pass Manager");
PMD->add(this);
}
/// Setup Pass Manager in advance before checking availability of
/// required analysis passes.
void BasicBlockPass::setupPassManager(PMStack &PMS) {
BBPassManager *BBP = NULL;
@ -1268,32 +1275,37 @@ void BasicBlockPass::assignPassManager(PMStack &PMS) {
BBP = dynamic_cast<BBPassManager *>(PMS.top());
}
// If leaf manager is not Basic Block Pass manager then create new
// basic Block Pass manager.
if (!BBP) {
assert(!PMS.empty() && "Unable to create BasicBlock Pass Manager");
PMDataManager *PMD = PMS.top();
// [1] Create new Basic Block Manager
BBP = new BBPassManager(PMD->getDepth() + 1);
// [2] Set up new manager's top level manager
// Basic Block Pass Manager does not live by itself
PMTopLevelManager *TPM = PMD->getTopLevelManager();
TPM->addIndirectPassManager(BBP);
if (BBP)
return;
assert(!PMS.empty() && "Unable to create BasicBlock Pass Manager");
PMDataManager *PMD = PMS.top();
// [1] Create new Basic Block Manager
BBP = new BBPassManager(PMD->getDepth() + 1);
// [2] Set up new manager's top level manager
// Basic Block Pass Manager does not live by itself
PMTopLevelManager *TPM = PMD->getTopLevelManager();
TPM->addIndirectPassManager(BBP);
// [3] Assign manager to manage this new manager. This may create
// and push new managers into PMS
Pass *P = dynamic_cast<Pass *>(BBP);
P->assignPassManager(PMS);
Pass *P = dynamic_cast<Pass *>(BBP);
P->assignPassManager(PMS);
// [4] Push new manager into PMS
PMS.push(BBP);
}
// [4] Push new manager into PMS
PMS.push(BBP);
}
/// Find appropriate Basic Pass Manager or Call Graph Pass Manager
/// in the PM Stack and add self into that manager.
void BasicBlockPass::assignPassManager(PMStack &PMS) {
// Assign BBP as the manager of this pass.
BBP->add(this);
PMDataManager *PMD = dynamic_cast<PMDataManager *>(PMS.top());
assert(PMD && "Unable to assign Pass Manager");
PMD->add(this);
}