/// Assign pass manager to manage this pass.
void LoopPass::assignPassManager(PMStack &PMS,
PassManagerType PreferredType) {
// Find LPPassManager
while (!PMS.empty() &&
PMS.top()->getPassManagerType() > PMT_LoopPassManager)
PMS.pop();
LPPassManager *LPPM;
if (PMS.top()->getPassManagerType() == PMT_LoopPassManager)
LPPM = (LPPassManager*)PMS.top();
else {
// Create new Loop Pass Manager if it does not exist.
assert (!PMS.empty() && "Unable to create Loop Pass Manager");
PMDataManager *PMD = PMS.top();
// [1] Create new Loop Pass Manager
LPPM = new LPPassManager();
LPPM->populateInheritedAnalysis(PMS);
// [2] Set up new manager's top level manager
PMTopLevelManager *TPM = PMD->getTopLevelManager();
TPM->addIndirectPassManager(LPPM);
// [3] Assign manager to manage this new manager. This may create
// and push new managers into PMS
Pass *P = LPPM->getAsPass();
TPM->schedulePass(P);
// [4] Push new manager into PMS
PMS.push(LPPM);
}
LPPM->add(this);
}
/// Assign pass manager to manage this pass.
void CallGraphSCCPass::assignPassManager(PMStack &PMS,
PassManagerType PreferredType) {
// Find CGPassManager
while (!PMS.empty() &&
PMS.top()->getPassManagerType() > PMT_CallGraphPassManager)
PMS.pop();
assert (!PMS.empty() && "Unable to handle Call Graph Pass");
CGPassManager *CGP = dynamic_cast<CGPassManager *>(PMS.top());
// Create new Call Graph SCC Pass Manager if it does not exist.
if (!CGP) {
assert (!PMS.empty() && "Unable to create Call Graph Pass Manager");
PMDataManager *PMD = PMS.top();
// [1] Create new Call Graph Pass Manager
CGP = new CGPassManager(PMD->getDepth() + 1);
// [2] Set up new manager's top level manager
PMTopLevelManager *TPM = PMD->getTopLevelManager();
TPM->addIndirectPassManager(CGP);
// [3] Assign manager to manage this new manager. This may create
// and push new managers into PMS
Pass *P = dynamic_cast<Pass *>(CGP);
TPM->schedulePass(P);
// [4] Push new manager into PMS
PMS.push(CGP);
}
CGP->add(this);
}
bool CGPassManager::RunPassOnSCC(Pass *P, CallGraphSCC &CurSCC,
CallGraph &CG, bool &CallGraphUpToDate,
bool &DevirtualizedCall) {
bool Changed = false;
PMDataManager *PM = P->getAsPMDataManager();
if (!PM) {
CallGraphSCCPass *CGSP = (CallGraphSCCPass*)P;
if (!CallGraphUpToDate) {
DevirtualizedCall |= RefreshCallGraph(CurSCC, CG, false);
CallGraphUpToDate = true;
}
{
TimeRegion PassTimer(getPassTimer(CGSP));
Changed = CGSP->runOnSCC(CurSCC);
}
// After the CGSCCPass is done, when assertions are enabled, use
// RefreshCallGraph to verify that the callgraph was correctly updated.
#ifndef NDEBUG
if (Changed)
RefreshCallGraph(CurSCC, CG, true);
#endif
return Changed;
}
assert(PM->getPassManagerType() == PMT_FunctionPassManager &&
"Invalid CGPassManager member");
FPPassManager *FPP = (FPPassManager*)P;
// Run pass P on all functions in the current SCC.
for (CallGraphSCC::iterator I = CurSCC.begin(), E = CurSCC.end();
I != E; ++I) {
if (Function *F = (*I)->getFunction()) {
dumpPassInfo(P, EXECUTION_MSG, ON_FUNCTION_MSG, F->getName());
{
TimeRegion PassTimer(getPassTimer(FPP));
Changed |= FPP->runOnFunction(*F);
}
F->getContext().yield();
}
}
// The function pass(es) modified the IR, they may have clobbered the
// callgraph.
if (Changed && CallGraphUpToDate) {
DEBUG(dbgs() << "CGSCCPASSMGR: Pass Dirtied SCC: "
<< P->getPassName() << '\n');
CallGraphUpToDate = false;
}
return Changed;
}
bool CGPassManager::RunPassOnSCC(Pass *P, CallGraphSCC &CurSCC,
CallGraph &CG, bool &CallGraphUpToDate,
bool &DevirtualizedCall) {
bool Changed = false;
PMDataManager *PM = P->getAsPMDataManager();
Module &M = CG.getModule();
if (!PM) {
CallGraphSCCPass *CGSP = (CallGraphSCCPass *)P;
if (!CallGraphUpToDate) {
DevirtualizedCall |= RefreshCallGraph(CurSCC, CG, false);
CallGraphUpToDate = true;
}
{
unsigned InstrCount, SCCCount = 0;
bool EmitICRemark = M.shouldEmitInstrCountChangedRemark();
TimeRegion PassTimer(getPassTimer(CGSP));
if (EmitICRemark)
InstrCount = initSizeRemarkInfo(M);
Changed = CGSP->runOnSCC(CurSCC);
if (EmitICRemark) {
// FIXME: Add getInstructionCount to CallGraphSCC.
SCCCount = M.getInstructionCount();
// Is there a difference in the number of instructions in the module?
if (SCCCount != InstrCount) {
// Yep. Emit a remark and update InstrCount.
int64_t Delta =
static_cast<int64_t>(SCCCount) - static_cast<int64_t>(InstrCount);
emitInstrCountChangedRemark(P, M, Delta, InstrCount);
InstrCount = SCCCount;
}
}
}
// After the CGSCCPass is done, when assertions are enabled, use
// RefreshCallGraph to verify that the callgraph was correctly updated.
#ifndef NDEBUG
if (Changed)
RefreshCallGraph(CurSCC, CG, true);
#endif
return Changed;
}
assert(PM->getPassManagerType() == PMT_FunctionPassManager &&
"Invalid CGPassManager member");
FPPassManager *FPP = (FPPassManager*)P;
// Run pass P on all functions in the current SCC.
for (CallGraphNode *CGN : CurSCC) {
if (Function *F = CGN->getFunction()) {
dumpPassInfo(P, EXECUTION_MSG, ON_FUNCTION_MSG, F->getName());
{
TimeRegion PassTimer(getPassTimer(FPP));
Changed |= FPP->runOnFunction(*F);
}
F->getContext().yield();
}
}
// The function pass(es) modified the IR, they may have clobbered the
// callgraph.
if (Changed && CallGraphUpToDate) {
LLVM_DEBUG(dbgs() << "CGSCCPASSMGR: Pass Dirtied SCC: " << P->getPassName()
<< '\n');
CallGraphUpToDate = false;
}
return Changed;
}