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Add CallGraphSCCPass::assignPassManager().

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This enables CalLGraphPassManager.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33466 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2007-01-23 21:52:35 +00:00
parent a6f567c89e
commit 97fd2439f2
2 changed files with 42 additions and 0 deletions
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4
include/llvm/CallGraphSCCPass.h
View File

@ -27,6 +27,7 @@ namespace llvm {
class CallGraphNode;
class CallGraph;
class PMStack;
struct CallGraphSCCPass : public ModulePass {
@ -54,6 +55,9 @@ struct CallGraphSCCPass : public ModulePass {
///
virtual bool runOnModule(Module &M);
/// Assign pass manager to manager this pass
virtual void assignPassManager(PMStack &PMS,
PassManagerType PMT = PMT_CallGraphPassManager);
/// getAnalysisUsage - For this class, we declare that we require and preserve
/// the call graph. If the derived class implements this method, it should

38
lib/Analysis/IPA/CallGraphSCCPass.cpp
View File

@ -144,6 +144,44 @@ bool CGPassManager::doFinalization(CallGraph &CG) {
return Changed;
}
/// Assign pass manager to manager this pass
void CallGraphSCCPass::assignPassManager(PMStack &PMS,
PassManagerType PreferredType) {
// Find CGPassManager
while (!PMS.empty()) {
if (PMS.top()->getPassManagerType() > PMT_CallGraphPassManager)
PMS.pop();
else;
break;
}
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);
P->assignPassManager(PMS);
// [4] Push new manager into PMS
PMS.push(CGP);
}
CGP->add(this);
}
/// getAnalysisUsage - For this class, we declare that we require and preserve
/// the call graph. If the derived class implements this method, it should
/// always explicitly call the implementation here.