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Implement schedulePasses().

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31671 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2006-11-11 02:22:31 +00:00
parent fcb2d940a0
commit f8af6f0ec1
1 changed files with 40 additions and 9 deletions
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49
lib/VMCore/PassManager.cpp
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@ -160,6 +160,11 @@ private:
/// Add a pass into a passmanager queue. This is used by schedulePasses
bool addPass(Pass *p);
/// Schedule pass P for execution. Make sure that passes required by
/// P are run before P is run. Update analysis info maintained by
/// the manager. Remove dead passes. This is a recursive function.
void schedulePass(Pass *P);
/// Schedule all passes collected in pass queue using add(). Add all the
/// schedule passes into various manager's queue using addPass().
void schedulePasses();
@ -437,24 +442,51 @@ ModulePassManager_New::runOnModule(Module &M) {
return Changed;
}
/// Schedule pass P for execution. Make sure that passes required by
/// P are run before P is run. Update analysis info maintained by
/// the manager. Remove dead passes. This is a recursive function.
void PassManagerImpl_New::schedulePass(Pass *P) {
AnalysisUsage AnUsage;
P->getAnalysisUsage(AnUsage);
const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet();
for (std::vector<AnalysisID>::const_iterator I = RequiredSet.begin(),
E = RequiredSet.end(); I != E; ++I) {
// TODO Check if Analysis is currently available or not.
bool available = false;
if (!available) {
// Schedule this analysis run first.
Pass *AP = (*I)->createPass();
schedulePass(AP);
}
}
addPass(P);
// TODO : Walk through all managers and remove not preserved analysis
// TODO : remove dead passes
}
/// Schedule all passes from the queue by adding them in their
/// respective manager's queue.
void
PassManagerImpl_New::schedulePasses() {
/* TODO */
void PassManagerImpl_New::schedulePasses() {
for (std::vector<Pass *>::iterator I = passVectorBegin(),
E = passVectorEnd(); I != E; ++I)
schedulePass (*I);
}
/// Add pass P to the queue of passes to run.
void
PassManagerImpl_New::add(Pass *P) {
void PassManagerImpl_New::add(Pass *P) {
// Do not process Analysis now. Analysis is process while scheduling
// the pass vector.
addPassToManager(P, false);
}
// PassManager_New implementation
/// Add P into active pass manager or use new module pass manager to
/// manage it.
bool
PassManagerImpl_New::addPass(Pass *P) {
bool PassManagerImpl_New::addPass(Pass *P) {
if (!activeManager || !activeManager->addPass(P)) {
activeManager = new ModulePassManager_New();
@ -466,8 +498,7 @@ PassManagerImpl_New::addPass(Pass *P) {
/// run - Execute all of the passes scheduled for execution. Keep track of
/// whether any of the passes modifies the module, and if so, return true.
bool
PassManagerImpl_New::run(Module &M) {
bool PassManagerImpl_New::run(Module &M) {
schedulePasses();
bool Changed = false;