forked from OSchip/llvm-project
789 lines
29 KiB
C++
789 lines
29 KiB
C++
//===- PassManagerT.h - Container for Passes ---------------------*- C++ -*--=//
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//
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// This file defines the PassManagerT class. This class is used to hold,
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// maintain, and optimize execution of Pass's. The PassManager class ensures
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// that analysis results are available before a pass runs, and that Pass's are
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// destroyed when the PassManager is destroyed.
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//
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// The PassManagerT template is instantiated three times to do its job. The
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// public PassManager class is a Pimpl around the PassManagerT<Module> interface
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// to avoid having all of the PassManager clients being exposed to the
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// implementation details herein.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_PASSMANAGER_T_H
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#define LLVM_PASSMANAGER_T_H
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#include "llvm/Pass.h"
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#include "Support/CommandLine.h"
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#include "Support/LeakDetector.h"
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#include "Support/Timer.h"
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#include <algorithm>
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#include <iostream>
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class Annotable;
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//===----------------------------------------------------------------------===//
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// Pass debugging information. Often it is useful to find out what pass is
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// running when a crash occurs in a utility. When this library is compiled with
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// debugging on, a command line option (--debug-pass) is enabled that causes the
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// pass name to be printed before it executes.
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//
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// Different debug levels that can be enabled...
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enum PassDebugLevel {
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None, Arguments, Structure, Executions, Details
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};
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static cl::opt<enum PassDebugLevel>
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PassDebugging("debug-pass", cl::Hidden,
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cl::desc("Print PassManager debugging information"),
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cl::values(
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clEnumVal(None , "disable debug output"),
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clEnumVal(Arguments , "print pass arguments to pass to 'opt'"),
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clEnumVal(Structure , "print pass structure before run()"),
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clEnumVal(Executions, "print pass name before it is executed"),
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clEnumVal(Details , "print pass details when it is executed"),
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0));
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//===----------------------------------------------------------------------===//
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// PMDebug class - a set of debugging functions, that are not to be
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// instantiated by the template.
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//
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struct PMDebug {
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static void PerformPassStartupStuff(Pass *P) {
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// If debugging is enabled, print out argument information...
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if (PassDebugging >= Arguments) {
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std::cerr << "Pass Arguments: ";
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PrintArgumentInformation(P);
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std::cerr << "\n";
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// Print the pass execution structure
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if (PassDebugging >= Structure)
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P->dumpPassStructure();
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}
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}
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static void PrintArgumentInformation(const Pass *P);
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static void PrintPassInformation(unsigned,const char*,Pass *, Annotable *);
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static void PrintAnalysisSetInfo(unsigned,const char*,Pass *P,
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const std::vector<AnalysisID> &);
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};
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//===----------------------------------------------------------------------===//
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// TimingInfo Class - This class is used to calculate information about the
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// amount of time each pass takes to execute. This only happens when
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// -time-passes is enabled on the command line.
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//
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class TimingInfo {
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std::map<Pass*, Timer> TimingData;
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TimerGroup TG;
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// Private ctor, must use 'create' member
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TimingInfo() : TG("... Pass execution timing report ...") {}
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public:
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// TimingDtor - Print out information about timing information
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~TimingInfo() {
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// Delete all of the timers...
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TimingData.clear();
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// TimerGroup is deleted next, printing the report.
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}
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// createTheTimeInfo - This method either initializes the TheTimeInfo pointer
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// to a non null value (if the -time-passes option is enabled) or it leaves it
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// null. It may be called multiple times.
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static void createTheTimeInfo();
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void passStarted(Pass *P) {
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if (dynamic_cast<AnalysisResolver*>(P)) return;
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std::map<Pass*, Timer>::iterator I = TimingData.find(P);
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if (I == TimingData.end())
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I=TimingData.insert(std::make_pair(P, Timer(P->getPassName(), TG))).first;
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I->second.startTimer();
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}
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void passEnded(Pass *P) {
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if (dynamic_cast<AnalysisResolver*>(P)) return;
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std::map<Pass*, Timer>::iterator I = TimingData.find(P);
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assert (I != TimingData.end() && "passStarted/passEnded not nested right!");
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I->second.stopTimer();
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}
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};
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static TimingInfo *TheTimeInfo;
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//===----------------------------------------------------------------------===//
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// Declare the PassManagerTraits which will be specialized...
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//
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template<class UnitType> class PassManagerTraits; // Do not define.
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//===----------------------------------------------------------------------===//
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// PassManagerT - Container object for passes. The PassManagerT destructor
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// deletes all passes contained inside of the PassManagerT, so you shouldn't
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// delete passes manually, and all passes should be dynamically allocated.
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//
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template<typename UnitType>
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class PassManagerT : public PassManagerTraits<UnitType>,public AnalysisResolver{
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typedef PassManagerTraits<UnitType> Traits;
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typedef typename Traits::PassClass PassClass;
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typedef typename Traits::SubPassClass SubPassClass;
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typedef typename Traits::BatcherClass BatcherClass;
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typedef typename Traits::ParentClass ParentClass;
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friend class PassManagerTraits<UnitType>::PassClass;
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friend class PassManagerTraits<UnitType>::SubPassClass;
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friend class Traits;
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friend class ImmutablePass;
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std::vector<PassClass*> Passes; // List of passes to run
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std::vector<ImmutablePass*> ImmutablePasses; // List of immutable passes
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// The parent of this pass manager...
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ParentClass * const Parent;
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// The current batcher if one is in use, or null
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BatcherClass *Batcher;
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// CurrentAnalyses - As the passes are being run, this map contains the
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// analyses that are available to the current pass for use. This is accessed
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// through the getAnalysis() function in this class and in Pass.
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//
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std::map<AnalysisID, Pass*> CurrentAnalyses;
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// LastUseOf - This map keeps track of the last usage in our pipeline of a
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// particular pass. When executing passes, the memory for .first is free'd
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// after .second is run.
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//
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std::map<Pass*, Pass*> LastUseOf;
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public:
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PassManagerT(ParentClass *Par = 0) : Parent(Par), Batcher(0) {}
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~PassManagerT() {
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// Delete all of the contained passes...
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for (typename std::vector<PassClass*>::iterator
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I = Passes.begin(), E = Passes.end(); I != E; ++I)
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delete *I;
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for (std::vector<ImmutablePass*>::iterator
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I = ImmutablePasses.begin(), E = ImmutablePasses.end(); I != E; ++I)
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delete *I;
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}
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// run - Run all of the queued passes on the specified module in an optimal
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// way.
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virtual bool runOnUnit(UnitType *M) {
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bool MadeChanges = false;
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closeBatcher();
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CurrentAnalyses.clear();
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TimingInfo::createTheTimeInfo();
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// Add any immutable passes to the CurrentAnalyses set...
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for (unsigned i = 0, e = ImmutablePasses.size(); i != e; ++i) {
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ImmutablePass *IPass = ImmutablePasses[i];
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if (const PassInfo *PI = IPass->getPassInfo()) {
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CurrentAnalyses[PI] = IPass;
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const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented();
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for (unsigned i = 0, e = II.size(); i != e; ++i)
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CurrentAnalyses[II[i]] = IPass;
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}
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}
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// LastUserOf - This contains the inverted LastUseOfMap...
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std::map<Pass *, std::vector<Pass*> > LastUserOf;
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for (std::map<Pass*, Pass*>::iterator I = LastUseOf.begin(),
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E = LastUseOf.end(); I != E; ++I)
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LastUserOf[I->second].push_back(I->first);
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// Output debug information...
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if (Parent == 0) PMDebug::PerformPassStartupStuff(this);
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// Run all of the passes
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for (unsigned i = 0, e = Passes.size(); i < e; ++i) {
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PassClass *P = Passes[i];
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PMDebug::PrintPassInformation(getDepth(), "Executing Pass", P,
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(Annotable*)M);
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// Get information about what analyses the pass uses...
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AnalysisUsage AnUsage;
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P->getAnalysisUsage(AnUsage);
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PMDebug::PrintAnalysisSetInfo(getDepth(), "Required", P,
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AnUsage.getRequiredSet());
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// All Required analyses should be available to the pass as it runs! Here
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// we fill in the AnalysisImpls member of the pass so that it can
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// successfully use the getAnalysis() method to retrieve the
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// implementations it needs.
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//
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P->AnalysisImpls.clear();
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P->AnalysisImpls.reserve(AnUsage.getRequiredSet().size());
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for (std::vector<const PassInfo *>::const_iterator
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I = AnUsage.getRequiredSet().begin(),
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E = AnUsage.getRequiredSet().end(); I != E; ++I) {
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Pass *Impl = getAnalysisOrNullUp(*I);
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if (Impl == 0) {
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std::cerr << "Analysis '" << (*I)->getPassName()
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<< "' used but not available!";
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assert(0 && "Analysis used but not available!");
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} else if (PassDebugging == Details) {
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if ((*I)->getPassName() != std::string(Impl->getPassName()))
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std::cerr << " Interface '" << (*I)->getPassName()
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<< "' implemented by '" << Impl->getPassName() << "'\n";
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}
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P->AnalysisImpls.push_back(std::make_pair(*I, Impl));
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}
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// Run the sub pass!
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if (TheTimeInfo) TheTimeInfo->passStarted(P);
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bool Changed = runPass(P, M);
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if (TheTimeInfo) TheTimeInfo->passEnded(P);
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MadeChanges |= Changed;
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// Check for memory leaks by the pass...
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LeakDetector::checkForGarbage(std::string("after running pass '") +
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P->getPassName() + "'");
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if (Changed)
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PMDebug::PrintPassInformation(getDepth()+1, "Made Modification", P,
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(Annotable*)M);
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PMDebug::PrintAnalysisSetInfo(getDepth(), "Preserved", P,
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AnUsage.getPreservedSet());
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// Erase all analyses not in the preserved set...
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if (!AnUsage.getPreservesAll()) {
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const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet();
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for (std::map<AnalysisID, Pass*>::iterator I = CurrentAnalyses.begin(),
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E = CurrentAnalyses.end(); I != E; )
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if (std::find(PreservedSet.begin(), PreservedSet.end(), I->first) !=
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PreservedSet.end())
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++I; // This analysis is preserved, leave it in the available set...
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else {
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if (!dynamic_cast<ImmutablePass*>(I->second)) {
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std::map<AnalysisID, Pass*>::iterator J = I++;
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CurrentAnalyses.erase(J); // Analysis not preserved!
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} else {
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++I;
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}
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}
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}
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// Add the current pass to the set of passes that have been run, and are
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// thus available to users.
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//
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if (const PassInfo *PI = P->getPassInfo()) {
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CurrentAnalyses[PI] = P;
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// This pass is the current implementation of all of the interfaces it
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// implements as well.
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//
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const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented();
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for (unsigned i = 0, e = II.size(); i != e; ++i)
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CurrentAnalyses[II[i]] = P;
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}
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// Free memory for any passes that we are the last use of...
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std::vector<Pass*> &DeadPass = LastUserOf[P];
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for (std::vector<Pass*>::iterator I = DeadPass.begin(),E = DeadPass.end();
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I != E; ++I) {
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PMDebug::PrintPassInformation(getDepth()+1, "Freeing Pass", *I,
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(Annotable*)M);
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(*I)->releaseMemory();
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}
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// Make sure to remove dead passes from the CurrentAnalyses list...
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for (std::map<AnalysisID, Pass*>::iterator I = CurrentAnalyses.begin();
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I != CurrentAnalyses.end(); ) {
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std::vector<Pass*>::iterator DPI = std::find(DeadPass.begin(),
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DeadPass.end(), I->second);
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if (DPI != DeadPass.end()) { // This pass is dead now... remove it
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std::map<AnalysisID, Pass*>::iterator IDead = I++;
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CurrentAnalyses.erase(IDead);
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} else {
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++I; // Move on to the next element...
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}
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}
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}
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return MadeChanges;
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}
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// dumpPassStructure - Implement the -debug-passes=PassStructure option
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virtual void dumpPassStructure(unsigned Offset = 0) {
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// Print out the immutable passes...
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for (unsigned i = 0, e = ImmutablePasses.size(); i != e; ++i)
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ImmutablePasses[i]->dumpPassStructure(0);
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std::cerr << std::string(Offset*2, ' ') << Traits::getPMName()
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<< " Pass Manager\n";
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for (typename std::vector<PassClass*>::iterator
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I = Passes.begin(), E = Passes.end(); I != E; ++I) {
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PassClass *P = *I;
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P->dumpPassStructure(Offset+1);
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// Loop through and see which classes are destroyed after this one...
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for (std::map<Pass*, Pass*>::iterator I = LastUseOf.begin(),
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E = LastUseOf.end(); I != E; ++I) {
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if (P == I->second) {
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std::cerr << "--" << std::string(Offset*2, ' ');
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I->first->dumpPassStructure(0);
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}
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}
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}
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}
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Pass *getImmutablePassOrNull(const PassInfo *ID) const {
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for (unsigned i = 0, e = ImmutablePasses.size(); i != e; ++i) {
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const PassInfo *IPID = ImmutablePasses[i]->getPassInfo();
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if (IPID == ID)
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return ImmutablePasses[i];
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// This pass is the current implementation of all of the interfaces it
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// implements as well.
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//
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const std::vector<const PassInfo*> &II =
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IPID->getInterfacesImplemented();
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for (unsigned j = 0, e = II.size(); j != e; ++j)
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if (II[j] == ID) return ImmutablePasses[i];
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}
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return 0;
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}
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Pass *getAnalysisOrNullDown(const PassInfo *ID) const {
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std::map<AnalysisID, Pass*>::const_iterator I = CurrentAnalyses.find(ID);
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if (I != CurrentAnalyses.end())
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return I->second; // Found it.
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if (Pass *P = getImmutablePassOrNull(ID))
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return P;
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if (Batcher)
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return ((AnalysisResolver*)Batcher)->getAnalysisOrNullDown(ID);
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return 0;
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}
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Pass *getAnalysisOrNullUp(const PassInfo *ID) const {
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std::map<AnalysisID, Pass*>::const_iterator I = CurrentAnalyses.find(ID);
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if (I != CurrentAnalyses.end())
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return I->second; // Found it.
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if (Parent) // Try scanning...
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return Parent->getAnalysisOrNullUp(ID);
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else if (!ImmutablePasses.empty())
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return getImmutablePassOrNull(ID);
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return 0;
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}
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// markPassUsed - Inform higher level pass managers (and ourselves)
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// that these analyses are being used by this pass. This is used to
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// make sure that analyses are not free'd before we have to use
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// them...
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//
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void markPassUsed(const PassInfo *P, Pass *User) {
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std::map<AnalysisID, Pass*>::const_iterator I = CurrentAnalyses.find(P);
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if (I != CurrentAnalyses.end()) {
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LastUseOf[I->second] = User; // Local pass, extend the lifetime
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} else {
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// Pass not in current available set, must be a higher level pass
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// available to us, propagate to parent pass manager... We tell the
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// parent that we (the passmanager) are using the analysis so that it
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// frees the analysis AFTER this pass manager runs.
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//
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if (Parent) {
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Parent->markPassUsed(P, this);
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} else {
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assert(getAnalysisOrNullUp(P) &&
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dynamic_cast<ImmutablePass*>(getAnalysisOrNullUp(P)) &&
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"Pass available but not found! "
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"Perhaps this is a module pass requiring a function pass?");
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}
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}
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}
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// Return the number of parent PassManagers that exist
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virtual unsigned getDepth() const {
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if (Parent == 0) return 0;
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return 1 + Parent->getDepth();
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}
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virtual unsigned getNumContainedPasses() const { return Passes.size(); }
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virtual const Pass *getContainedPass(unsigned N) const {
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assert(N < Passes.size() && "Pass number out of range!");
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return Passes[N];
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}
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// add - Add a pass to the queue of passes to run. This gives ownership of
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// the Pass to the PassManager. When the PassManager is destroyed, the pass
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// will be destroyed as well, so there is no need to delete the pass. This
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// implies that all passes MUST be new'd.
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//
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void add(PassClass *P) {
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// Get information about what analyses the pass uses...
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AnalysisUsage AnUsage;
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P->getAnalysisUsage(AnUsage);
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const std::vector<AnalysisID> &Required = AnUsage.getRequiredSet();
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// Loop over all of the analyses used by this pass,
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for (std::vector<AnalysisID>::const_iterator I = Required.begin(),
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E = Required.end(); I != E; ++I) {
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if (getAnalysisOrNullDown(*I) == 0)
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add((PassClass*)(*I)->createPass());
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}
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// Tell the pass to add itself to this PassManager... the way it does so
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// depends on the class of the pass, and is critical to laying out passes in
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// an optimal order..
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//
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P->addToPassManager(this, AnUsage);
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}
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// add - H4x0r an ImmutablePass into a PassManager that might not be
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// expecting one.
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//
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void add(ImmutablePass *P) {
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// Get information about what analyses the pass uses...
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AnalysisUsage AnUsage;
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P->getAnalysisUsage(AnUsage);
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const std::vector<AnalysisID> &Required = AnUsage.getRequiredSet();
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// Loop over all of the analyses used by this pass,
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for (std::vector<AnalysisID>::const_iterator I = Required.begin(),
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E = Required.end(); I != E; ++I) {
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if (getAnalysisOrNullDown(*I) == 0)
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add((PassClass*)(*I)->createPass());
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}
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// Add the ImmutablePass to this PassManager.
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addPass(P, AnUsage);
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}
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private:
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// addPass - These functions are used to implement the subclass specific
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// behaviors present in PassManager. Basically the add(Pass*) method ends up
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// reflecting its behavior into a Pass::addToPassManager call. Subclasses of
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// Pass override it specifically so that they can reflect the type
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// information inherent in "this" back to the PassManager.
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//
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// For generic Pass subclasses (which are interprocedural passes), we simply
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// add the pass to the end of the pass list and terminate any accumulation of
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// FunctionPass's that are present.
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//
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void addPass(PassClass *P, AnalysisUsage &AnUsage) {
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const std::vector<AnalysisID> &RequiredSet = AnUsage.getRequiredSet();
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// FIXME: If this pass being added isn't killed by any of the passes in the
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// batcher class then we can reorder to pass to execute before the batcher
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// does, which will potentially allow us to batch more passes!
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//
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//const std::vector<AnalysisID> &ProvidedSet = AnUsage.getProvidedSet();
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|
if (Batcher /*&& ProvidedSet.empty()*/)
|
|
closeBatcher(); // This pass cannot be batched!
|
|
|
|
// Set the Resolver instance variable in the Pass so that it knows where to
|
|
// find this object...
|
|
//
|
|
setAnalysisResolver(P, this);
|
|
Passes.push_back(P);
|
|
|
|
// Inform higher level pass managers (and ourselves) that these analyses are
|
|
// being used by this pass. This is used to make sure that analyses are not
|
|
// free'd before we have to use them...
|
|
//
|
|
for (std::vector<AnalysisID>::const_iterator I = RequiredSet.begin(),
|
|
E = RequiredSet.end(); I != E; ++I)
|
|
markPassUsed(*I, P); // Mark *I as used by P
|
|
|
|
// Erase all analyses not in the preserved set...
|
|
if (!AnUsage.getPreservesAll()) {
|
|
const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet();
|
|
for (std::map<AnalysisID, Pass*>::iterator I = CurrentAnalyses.begin(),
|
|
E = CurrentAnalyses.end(); I != E; ) {
|
|
if (std::find(PreservedSet.begin(), PreservedSet.end(), I->first) ==
|
|
PreservedSet.end()) { // Analysis not preserved!
|
|
CurrentAnalyses.erase(I); // Remove from available analyses
|
|
I = CurrentAnalyses.begin();
|
|
} else {
|
|
++I;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add this pass to the currently available set...
|
|
if (const PassInfo *PI = P->getPassInfo()) {
|
|
CurrentAnalyses[PI] = P;
|
|
|
|
// This pass is the current implementation of all of the interfaces it
|
|
// implements as well.
|
|
//
|
|
const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented();
|
|
for (unsigned i = 0, e = II.size(); i != e; ++i)
|
|
CurrentAnalyses[II[i]] = P;
|
|
}
|
|
|
|
// For now assume that our results are never used...
|
|
LastUseOf[P] = P;
|
|
}
|
|
|
|
// For FunctionPass subclasses, we must be sure to batch the FunctionPass's
|
|
// together in a BatcherClass object so that all of the analyses are run
|
|
// together a function at a time.
|
|
//
|
|
void addPass(SubPassClass *MP, AnalysisUsage &AnUsage) {
|
|
if (Batcher == 0) // If we don't have a batcher yet, make one now.
|
|
Batcher = new BatcherClass(this);
|
|
// The Batcher will queue the passes up
|
|
MP->addToPassManager(Batcher, AnUsage);
|
|
}
|
|
|
|
// closeBatcher - Terminate the batcher that is being worked on.
|
|
void closeBatcher() {
|
|
if (Batcher) {
|
|
Passes.push_back(Batcher);
|
|
Batcher = 0;
|
|
}
|
|
}
|
|
|
|
public:
|
|
// When an ImmutablePass is added, it gets added to the top level pass
|
|
// manager.
|
|
void addPass(ImmutablePass *IP, AnalysisUsage &AU) {
|
|
if (Parent) { // Make sure this request goes to the top level passmanager...
|
|
Parent->addPass(IP, AU);
|
|
return;
|
|
}
|
|
|
|
// Set the Resolver instance variable in the Pass so that it knows where to
|
|
// find this object...
|
|
//
|
|
setAnalysisResolver(IP, this);
|
|
ImmutablePasses.push_back(IP);
|
|
|
|
// All Required analyses should be available to the pass as it initializes!
|
|
// Here we fill in the AnalysisImpls member of the pass so that it can
|
|
// successfully use the getAnalysis() method to retrieve the implementations
|
|
// it needs.
|
|
//
|
|
IP->AnalysisImpls.clear();
|
|
IP->AnalysisImpls.reserve(AU.getRequiredSet().size());
|
|
for (std::vector<const PassInfo *>::const_iterator
|
|
I = AU.getRequiredSet().begin(),
|
|
E = AU.getRequiredSet().end(); I != E; ++I) {
|
|
Pass *Impl = getAnalysisOrNullUp(*I);
|
|
if (Impl == 0) {
|
|
std::cerr << "Analysis '" << (*I)->getPassName()
|
|
<< "' used but not available!";
|
|
assert(0 && "Analysis used but not available!");
|
|
} else if (PassDebugging == Details) {
|
|
if ((*I)->getPassName() != std::string(Impl->getPassName()))
|
|
std::cerr << " Interface '" << (*I)->getPassName()
|
|
<< "' implemented by '" << Impl->getPassName() << "'\n";
|
|
}
|
|
IP->AnalysisImpls.push_back(std::make_pair(*I, Impl));
|
|
}
|
|
|
|
// Initialize the immutable pass...
|
|
IP->initializePass();
|
|
}
|
|
};
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// PassManagerTraits<BasicBlock> Specialization
|
|
//
|
|
// This pass manager is used to group together all of the BasicBlockPass's
|
|
// into a single unit.
|
|
//
|
|
template<> struct PassManagerTraits<BasicBlock> : public BasicBlockPass {
|
|
// PassClass - The type of passes tracked by this PassManager
|
|
typedef BasicBlockPass PassClass;
|
|
|
|
// SubPassClass - The types of classes that should be collated together
|
|
// This is impossible to match, so BasicBlock instantiations of PassManagerT
|
|
// do not collate.
|
|
//
|
|
typedef PassManagerT<Module> SubPassClass;
|
|
|
|
// BatcherClass - The type to use for collation of subtypes... This class is
|
|
// never instantiated for the PassManager<BasicBlock>, but it must be an
|
|
// instance of PassClass to typecheck.
|
|
//
|
|
typedef PassClass BatcherClass;
|
|
|
|
// ParentClass - The type of the parent PassManager...
|
|
typedef PassManagerT<Function> ParentClass;
|
|
|
|
// PMType - The type of the passmanager that subclasses this class
|
|
typedef PassManagerT<BasicBlock> PMType;
|
|
|
|
// runPass - Specify how the pass should be run on the UnitType
|
|
static bool runPass(PassClass *P, BasicBlock *M) {
|
|
// todo, init and finalize
|
|
return P->runOnBasicBlock(*M);
|
|
}
|
|
|
|
// getPMName() - Return the name of the unit the PassManager operates on for
|
|
// debugging.
|
|
const char *getPMName() const { return "BasicBlock"; }
|
|
virtual const char *getPassName() const { return "BasicBlock Pass Manager"; }
|
|
|
|
// Implement the BasicBlockPass interface...
|
|
virtual bool doInitialization(Module &M);
|
|
virtual bool doInitialization(Function &F);
|
|
virtual bool runOnBasicBlock(BasicBlock &BB);
|
|
virtual bool doFinalization(Function &F);
|
|
virtual bool doFinalization(Module &M);
|
|
|
|
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
|
|
AU.setPreservesAll();
|
|
}
|
|
};
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// PassManagerTraits<Function> Specialization
|
|
//
|
|
// This pass manager is used to group together all of the FunctionPass's
|
|
// into a single unit.
|
|
//
|
|
template<> struct PassManagerTraits<Function> : public FunctionPass {
|
|
// PassClass - The type of passes tracked by this PassManager
|
|
typedef FunctionPass PassClass;
|
|
|
|
// SubPassClass - The types of classes that should be collated together
|
|
typedef BasicBlockPass SubPassClass;
|
|
|
|
// BatcherClass - The type to use for collation of subtypes...
|
|
typedef PassManagerT<BasicBlock> BatcherClass;
|
|
|
|
// ParentClass - The type of the parent PassManager...
|
|
typedef PassManagerT<Module> ParentClass;
|
|
|
|
// PMType - The type of the passmanager that subclasses this class
|
|
typedef PassManagerT<Function> PMType;
|
|
|
|
// runPass - Specify how the pass should be run on the UnitType
|
|
static bool runPass(PassClass *P, Function *F) {
|
|
return P->runOnFunction(*F);
|
|
}
|
|
|
|
// getPMName() - Return the name of the unit the PassManager operates on for
|
|
// debugging.
|
|
const char *getPMName() const { return "Function"; }
|
|
virtual const char *getPassName() const { return "Function Pass Manager"; }
|
|
|
|
// Implement the FunctionPass interface...
|
|
virtual bool doInitialization(Module &M);
|
|
virtual bool runOnFunction(Function &F);
|
|
virtual bool doFinalization(Module &M);
|
|
|
|
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
|
|
AU.setPreservesAll();
|
|
}
|
|
};
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// PassManagerTraits<Module> Specialization
|
|
//
|
|
// This is the top level PassManager implementation that holds generic passes.
|
|
//
|
|
template<> struct PassManagerTraits<Module> : public Pass {
|
|
// PassClass - The type of passes tracked by this PassManager
|
|
typedef Pass PassClass;
|
|
|
|
// SubPassClass - The types of classes that should be collated together
|
|
typedef FunctionPass SubPassClass;
|
|
|
|
// BatcherClass - The type to use for collation of subtypes...
|
|
typedef PassManagerT<Function> BatcherClass;
|
|
|
|
// ParentClass - The type of the parent PassManager...
|
|
typedef AnalysisResolver ParentClass;
|
|
|
|
// runPass - Specify how the pass should be run on the UnitType
|
|
static bool runPass(PassClass *P, Module *M) { return P->run(*M); }
|
|
|
|
// getPMName() - Return the name of the unit the PassManager operates on for
|
|
// debugging.
|
|
const char *getPMName() const { return "Module"; }
|
|
virtual const char *getPassName() const { return "Module Pass Manager"; }
|
|
|
|
// run - Implement the PassManager interface...
|
|
bool run(Module &M) {
|
|
return ((PassManagerT<Module>*)this)->runOnUnit(&M);
|
|
}
|
|
};
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// PassManagerTraits Method Implementations
|
|
//
|
|
|
|
// PassManagerTraits<BasicBlock> Implementations
|
|
//
|
|
inline bool PassManagerTraits<BasicBlock>::doInitialization(Module &M) {
|
|
bool Changed = false;
|
|
for (unsigned i = 0, e = ((PMType*)this)->Passes.size(); i != e; ++i)
|
|
((PMType*)this)->Passes[i]->doInitialization(M);
|
|
return Changed;
|
|
}
|
|
|
|
inline bool PassManagerTraits<BasicBlock>::doInitialization(Function &F) {
|
|
bool Changed = false;
|
|
for (unsigned i = 0, e = ((PMType*)this)->Passes.size(); i != e; ++i)
|
|
((PMType*)this)->Passes[i]->doInitialization(F);
|
|
return Changed;
|
|
}
|
|
|
|
inline bool PassManagerTraits<BasicBlock>::runOnBasicBlock(BasicBlock &BB) {
|
|
return ((PMType*)this)->runOnUnit(&BB);
|
|
}
|
|
|
|
inline bool PassManagerTraits<BasicBlock>::doFinalization(Function &F) {
|
|
bool Changed = false;
|
|
for (unsigned i = 0, e = ((PMType*)this)->Passes.size(); i != e; ++i)
|
|
((PMType*)this)->Passes[i]->doFinalization(F);
|
|
return Changed;
|
|
}
|
|
|
|
inline bool PassManagerTraits<BasicBlock>::doFinalization(Module &M) {
|
|
bool Changed = false;
|
|
for (unsigned i = 0, e = ((PMType*)this)->Passes.size(); i != e; ++i)
|
|
((PMType*)this)->Passes[i]->doFinalization(M);
|
|
return Changed;
|
|
}
|
|
|
|
|
|
// PassManagerTraits<Function> Implementations
|
|
//
|
|
inline bool PassManagerTraits<Function>::doInitialization(Module &M) {
|
|
bool Changed = false;
|
|
for (unsigned i = 0, e = ((PMType*)this)->Passes.size(); i != e; ++i)
|
|
((PMType*)this)->Passes[i]->doInitialization(M);
|
|
return Changed;
|
|
}
|
|
|
|
inline bool PassManagerTraits<Function>::runOnFunction(Function &F) {
|
|
return ((PMType*)this)->runOnUnit(&F);
|
|
}
|
|
|
|
inline bool PassManagerTraits<Function>::doFinalization(Module &M) {
|
|
bool Changed = false;
|
|
for (unsigned i = 0, e = ((PMType*)this)->Passes.size(); i != e; ++i)
|
|
((PMType*)this)->Passes[i]->doFinalization(M);
|
|
return Changed;
|
|
}
|
|
|
|
#endif
|