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Robustify assingPassManager() for Module, Function and Basic Block

Browse Source 
Passes.

Robustify PMStack.push()

Add dump() routine to print PMStack.

llvm-svn: 33062
This commit is contained in:
Devang Patel 2007-01-11 00:19:00 +00:00
parent 94ddfbe8b8
commit a0b4424ed4
2 changed files with 77 additions and 39 deletions
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6
include/llvm/Pass.h
View File

@ -52,6 +52,7 @@ class FunctionPassManagerT;
class ModulePassManager;
class PMStack;
class AnalysisResolver;
class PMDataManager;
// AnalysisID - Use the PassInfo to identify a pass...
typedef const PassInfo* AnalysisID;
@ -106,6 +107,7 @@ public:
void print(std::ostream *O, const Module *M) const { if (O) print(*O, M); }
void dump() const; // dump - call print(std::cerr, 0);
virtual void assignPassManager(PMStack &PMS) {}
// Access AnalysisResolver
inline void setResolver(AnalysisResolver *AR) { Resolver = AR; }
inline AnalysisResolver *getResolver() { return Resolver; }
@ -329,7 +331,6 @@ public:
///
/// PMStack is just a wrapper around standard deque that overrides pop() and
/// push() methods.
class PMDataManager;
class PMStack {
public:
typedef std::deque<PMDataManager *>::reverse_iterator iterator;
@ -340,9 +341,10 @@ public:
void pop();
inline PMDataManager *top() { return S.back(); }
void push(PMDataManager *PM);
void push(Pass *P);
inline bool empty() { return S.empty(); }
void dump();
private:
std::deque<PMDataManager *> S;
};

106
lib/VMCore/PassManager.cpp
View File

@ -1616,14 +1616,39 @@ void PMStack::pop() {
}
// Push PM on the stack and set its top level manager.
void PMStack::push(PMDataManager *PM) {
void PMStack::push(Pass *P) {
PMDataManager *Top = this->top();
PMDataManager *Top = NULL;
PMDataManager *PM = dynamic_cast<PMDataManager *>(P);
assert (PM && "Unable to push. Pass Manager expected");
// Inherit top level manager
if (this->empty()) {
Top = PM;
}
else {
Top = this->top();
PMTopLevelManager *TPM = Top->getTopLevelManager();
PM->setTopLevelManager(TPM);
assert (TPM && "Unable to find top level manager");
TPM->addIndirectPassManager(PM);
PM->setTopLevelManager(TPM);
}
AnalysisResolver *AR = new AnalysisResolver(*Top);
P->setResolver(AR);
S.push_back(PM);
}
// Dump content of the pass manager stack.
void PMStack::dump() {
for(std::deque<PMDataManager *>::iterator I = S.begin(),
E = S.end(); I != E; ++I) {
Pass *P = dynamic_cast<Pass *>(*I);
printf ("%s ", P->getPassName());
}
if (!S.empty())
printf ("\n");
}
// Walk Pass Manager stack and set LastUse markers if any
@ -1662,7 +1687,6 @@ void ModulePass::assignPassManager(PMStack &PMS) {
}
assert(MPP && "Unable to find Module Pass Manager");
MPP->addPassToManager(this);
}
@ -1672,34 +1696,42 @@ void FunctionPass::assignPassManager(PMStack &PMS) {
FPPassManager *FPP = NULL;
// Find Module Pass Manager
// Find Module Pass Manager (TODO : Or Call Graph Pass Manager)
while(!PMS.empty()) {
FPP = dynamic_cast<FPPassManager *>(PMS.top());
if (FPP || dynamic_cast<MPPassManager *>(PMS.top()))
break; // Found it or it is not here
if (FPP)
break; // Found Function Pass Manager
else if (dynamic_cast<BBPassManager *>(PMS.top()))
PMS.pop(); // Pop Basic Block Pass Manager
// TODO : else if Pop Loop Pass Manager
else
PMS.pop(); // Pop children pass managers
break; // PMS.top() is either Module Pass Manager or Call Graph
// Pass Manager
}
// Create new Function Pass Manager
if (!FPP) {
/// Create new Function Pass Manager
/// Function Pass Manager does not live by itself
assert(!PMS.empty() && "Unable to create Function Pass Manager");
PMDataManager *PMD = PMS.top();
/// PMD should be either Module Pass Manager or Call Graph Pass Manager
assert(dynamic_cast<MPPassManager *>(PMD) &&
"Unable to create Function Pass Manager");
// [1] Create new Function Pass Manager
FPP = new FPPassManager(PMD->getDepth() + 1);
PMD->addPassToManager(FPP, false);
// [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);
}
// Assign FPP as the manager of this pass.
FPP->addPassToManager(this);
}
@ -1709,33 +1741,37 @@ void BasicBlockPass::assignPassManager(PMStack &PMS) {
BBPassManager *BBP = NULL;
// Find Module Pass Manager
while(!PMS.empty()) {
// Basic Pass Manager is a leaf pass manager. It does not handle
// any other pass manager.
if (!PMS.empty()) {
BBP = dynamic_cast<BBPassManager *>(PMS.top());
if (BBP || dynamic_cast<FPPassManager *>(PMS.top()))
break; // Found it or it is not here
else
PMS.pop(); // Pop children pass managers
}
// If leaf manager is not Basic Block Pass manager then create new
// basic Block Pass manager.
if (!BBP) {
/// Create new BasicBlock Pass Manager
/// BasicBlock Pass Manager does not live by itself
assert(!PMS.empty() && "Unable to create BasicBlock Pass Manager");
PMDataManager *PMD = PMS.top();
/// PMD should be Function Pass Manager
assert(dynamic_cast<FPPassManager *>(PMD) &&
"Unable to create BasicBlock Pass Manager");
// [1] Create new Basic Block Manager
BBP = new BBPassManager(PMD->getDepth() + 1);
PMD->addPassToManager(BBP, false);
// [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);
// [4] Push new manager into PMS
PMS.push(BBP);
}
// Assign BBP as the manager of this pass.
BBP->addPassToManager(this);
}