#include "llvm/Pass.h"
#include "Support/CommandLine.h"
+#include "Support/LeakDetector.h"
+#include "Support/Timer.h"
#include <algorithm>
#include <iostream>
class Annotable;
// amount of time each pass takes to execute. This only happens when
// -time-passes is enabled on the command line.
//
-struct TimeRecord { // TimeRecord - Data we collect and print for each pass
- double Elapsed; // Wall clock time elapsed in seconds
- double UserTime; // User time elapsed
- double SystemTime; // System time elapsed
- unsigned long MaxRSS; // Maximum resident set size (in bytes)
- unsigned long RSSTemp; // Temp for calculating maxrss
-
- TimeRecord() : Elapsed(0), UserTime(0), SystemTime(0), MaxRSS(0) {}
- void passStart(const TimeRecord &T);
- void passEnd(const TimeRecord &T);
- void sum(const TimeRecord &TR);
- bool operator<(const TimeRecord &TR) const {
- return UserTime+SystemTime < TR.UserTime+TR.SystemTime;
- }
-
- void print(const char *PassName, const TimeRecord &TotalTime) const;
-};
class TimingInfo {
- std::map<Pass*, TimeRecord> TimingData;
- TimingInfo() {} // Private ctor, must use create member
+ std::map<Pass*, Timer> TimingData;
+ TimerGroup TG;
+
+ // Private ctor, must use 'create' member
+ TimingInfo() : TG("... Pass execution timing report ...") {}
public:
// Create method. If Timing is enabled, this creates and returns a new timing
// object, otherwise it returns null.
static TimingInfo *create();
// TimingDtor - Print out information about timing information
- ~TimingInfo();
+ ~TimingInfo() {
+ // Delete all of the timers...
+ TimingData.clear();
+ // TimerGroup is deleted next, printing the report.
+ }
- void passStarted(Pass *P);
- void passEnded(Pass *P);
+ void passStarted(Pass *P) {
+ if (dynamic_cast<AnalysisResolver*>(P)) return;
+ std::map<Pass*, Timer>::iterator I = TimingData.find(P);
+ if (I == TimingData.end())
+ I=TimingData.insert(std::make_pair(P, Timer(P->getPassName(), TG))).first;
+ I->second.startTimer();
+ }
+ void passEnded(Pass *P) {
+ if (dynamic_cast<AnalysisResolver*>(P)) return;
+ std::map<Pass*, Timer>::iterator I = TimingData.find(P);
+ assert (I != TimingData.end() && "passStarted/passEnded not nested right!");
+ I->second.stopTimer();
+ }
};
-
-
//===----------------------------------------------------------------------===//
// Declare the PassManagerTraits which will be specialized...
//
friend typename Traits::PassClass;
friend typename Traits::SubPassClass;
friend class Traits;
+ friend class ImmutablePass;
std::vector<PassClass*> Passes; // List of passes to run
+ std::vector<ImmutablePass*> ImmutablePasses; // List of immutable passes
// The parent of this pass manager...
ParentClass * const Parent;
for (typename std::vector<PassClass*>::iterator
I = Passes.begin(), E = Passes.end(); I != E; ++I)
delete *I;
+
+ for (std::vector<ImmutablePass*>::iterator
+ I = ImmutablePasses.begin(), E = ImmutablePasses.end(); I != E; ++I)
+ delete *I;
}
// run - Run all of the queued passes on the specified module in an optimal
closeBatcher();
CurrentAnalyses.clear();
+ // Add any immutable passes to the CurrentAnalyses set...
+ for (unsigned i = 0, e = ImmutablePasses.size(); i != e; ++i) {
+ ImmutablePass *IPass = ImmutablePasses[i];
+ if (const PassInfo *PI = IPass->getPassInfo()) {
+ CurrentAnalyses[PI] = IPass;
+
+ const std::vector<const PassInfo*> &II = PI->getInterfacesImplemented();
+ for (unsigned i = 0, e = II.size(); i != e; ++i)
+ CurrentAnalyses[II[i]] = IPass;
+ }
+ }
+
// LastUserOf - This contains the inverted LastUseOfMap...
std::map<Pass *, std::vector<Pass*> > LastUserOf;
for (std::map<Pass*, Pass*>::iterator I = LastUseOf.begin(),
PMDebug::PrintAnalysisSetInfo(getDepth(), "Required", P,
AnUsage.getRequiredSet());
-#ifndef NDEBUG
- // All Required analyses should be available to the pass as it runs!
- for (std::vector<AnalysisID>::const_iterator
+ // All Required analyses should be available to the pass as it runs! 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.
+ //
+ P->AnalysisImpls.clear();
+ P->AnalysisImpls.reserve(AnUsage.getRequiredSet().size());
+ for (std::vector<const PassInfo *>::const_iterator
I = AnUsage.getRequiredSet().begin(),
E = AnUsage.getRequiredSet().end(); I != E; ++I) {
- assert(getAnalysisOrNullUp(*I) && "Analysis used but not available!");
+ 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";
+ }
+ P->AnalysisImpls.push_back(std::make_pair(*I, Impl));
}
-#endif
// Run the sub pass!
startPass(P);
endPass(P);
MadeChanges |= Changed;
+ // Check for memory leaks by the pass...
+ LeakDetector::checkForGarbage(std::string("after running pass '") +
+ P->getPassName() + "'");
+
if (Changed)
PMDebug::PrintPassInformation(getDepth()+1, "Made Modification", P,
(Annotable*)M);
// Erase all analyses not in the preserved set...
- if (!AnUsage.preservesAll()) {
+ if (!AnUsage.getPreservesAll()) {
const std::vector<AnalysisID> &PreservedSet = AnUsage.getPreservedSet();
for (std::map<AnalysisID, Pass*>::iterator I = CurrentAnalyses.begin(),
E = CurrentAnalyses.end(); I != E; )
PreservedSet.end())
++I; // This analysis is preserved, leave it in the available set...
else {
+ if (!dynamic_cast<ImmutablePass*>(I->second)) {
#if MAP_DOESNT_HAVE_BROKEN_ERASE_MEMBER
- I = CurrentAnalyses.erase(I); // Analysis not preserved!
+ I = CurrentAnalyses.erase(I); // Analysis not preserved!
#else
- // GCC 2.95.3 STL doesn't have correct erase member!
- CurrentAnalyses.erase(I);
- I = CurrentAnalyses.begin();
+ // GCC 2.95.3 STL doesn't have correct erase member!
+ CurrentAnalyses.erase(I);
+ I = CurrentAnalyses.begin();
#endif
+ } else {
+ ++I;
+ }
}
}
// Add the current pass to the set of passes that have been run, and are
// thus available to users.
//
- if (const PassInfo *PI = P->getPassInfo())
+ 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;
+ }
+
// Free memory for any passes that we are the last use of...
std::vector<Pass*> &DeadPass = LastUserOf[P];
for (std::vector<Pass*>::iterator I = DeadPass.begin(),E = DeadPass.end();
(Annotable*)M);
(*I)->releaseMemory();
}
+
+ // Make sure to remove dead passes from the CurrentAnalyses list...
+ for (std::map<AnalysisID, Pass*>::iterator I = CurrentAnalyses.begin();
+ I != CurrentAnalyses.end(); ) {
+ std::vector<Pass*>::iterator DPI = std::find(DeadPass.begin(),
+ DeadPass.end(), I->second);
+ if (DPI != DeadPass.end()) { // This pass is dead now... remove it
+ std::map<AnalysisID, Pass*>::iterator IDead = I++;
+ CurrentAnalyses.erase(IDead);
+ } else {
+ ++I; // Move on to the next element...
+ }
+ }
}
return MadeChanges;
}
// dumpPassStructure - Implement the -debug-passes=PassStructure option
virtual void dumpPassStructure(unsigned Offset = 0) {
+ // Print out the immutable passes...
+ for (unsigned i = 0, e = ImmutablePasses.size(); i != e; ++i)
+ ImmutablePasses[i]->dumpPassStructure(0);
+
std::cerr << std::string(Offset*2, ' ') << Traits::getPMName()
<< " Pass Manager\n";
for (typename std::vector<PassClass*>::iterator
}
}
- Pass *getAnalysisOrNullDown(AnalysisID ID) const {
+ Pass *getAnalysisOrNullDown(const PassInfo *ID) const {
std::map<AnalysisID, Pass*>::const_iterator I = CurrentAnalyses.find(ID);
- if (I == CurrentAnalyses.end()) {
- if (Batcher)
- return ((AnalysisResolver*)Batcher)->getAnalysisOrNullDown(ID);
- return 0;
- }
- return I->second;
+
+ if (I != CurrentAnalyses.end())
+ return I->second; // Found it.
+
+ if (Batcher)
+ return ((AnalysisResolver*)Batcher)->getAnalysisOrNullDown(ID);
+ return 0;
}
- Pass *getAnalysisOrNullUp(AnalysisID ID) const {
+ Pass *getAnalysisOrNullUp(const PassInfo *ID) const {
std::map<AnalysisID, Pass*>::const_iterator I = CurrentAnalyses.find(ID);
- if (I == CurrentAnalyses.end()) {
- if (Parent)
- return Parent->getAnalysisOrNullUp(ID);
- return 0;
- }
- return I->second;
+ if (I != CurrentAnalyses.end())
+ return I->second; // Found it.
+
+ if (Parent) // Try scanning...
+ return Parent->getAnalysisOrNullUp(ID);
+ return 0;
}
- // {start/end}Pass - Called when a pass is started, it just propogates
+ // {start/end}Pass - Called when a pass is started, it just propagates
// information up to the top level PassManagerT object to tell it that a pass
// has started or ended. This is used to gather timing information about
// passes.
// make sure that analyses are not free'd before we have to use
// them...
//
- void markPassUsed(AnalysisID P, Pass *User) {
- std::map<AnalysisID, Pass*>::iterator I = CurrentAnalyses.find(P);
+ void markPassUsed(const PassInfo *P, Pass *User) {
+ std::map<AnalysisID, Pass*>::const_iterator I = CurrentAnalyses.find(P);
+
if (I != CurrentAnalyses.end()) {
LastUseOf[I->second] = User; // Local pass, extend the lifetime
} else {
// Pass not in current available set, must be a higher level pass
- // available to us, propogate to parent pass manager... We tell the
+ // available to us, propagate to parent pass manager... We tell the
// parent that we (the passmanager) are using the analysis so that it
// frees the analysis AFTER this pass manager runs.
//
- assert(Parent != 0 && "Pass available but not found! "
- "Did your analysis pass 'Provide' itself?");
- Parent->markPassUsed(P, this);
+ if (Parent) {
+ Parent->markPassUsed(P, this);
+ } else {
+ assert(0 && "Pass available but not found! "
+ "Perhaps this is a module pass requiring a function pass?");
+ }
}
}
-
+
// Return the number of parent PassManagers that exist
virtual unsigned getDepth() const {
if (Parent == 0) return 0;
return Passes[N];
}
- // add - Add a pass to the queue of passes to run. This passes ownership of
+ // add - Add a pass to the queue of passes to run. This gives ownership of
// the Pass to the PassManager. When the PassManager is destroyed, the pass
// will be destroyed as well, so there is no need to delete the pass. This
// implies that all passes MUST be new'd.
markPassUsed(*I, P); // Mark *I as used by P
// Erase all analyses not in the preserved set...
- if (!AnUsage.preservesAll()) {
+ 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())
- ++I; // This analysis is preserved, leave it in the available set...
- else {
-#if MAP_DOESNT_HAVE_BROKEN_ERASE_MEMBER
- I = CurrentAnalyses.erase(I); // Analysis not preserved!
-#else
- CurrentAnalyses.erase(I);// GCC 2.95.3 STL doesn't have correct erase!
+ 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();
-#endif
+ } else {
+ ++I;
}
+ }
}
// Add this pass to the currently available set...
- if (const PassInfo *PI = P->getPassInfo())
+ 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;
}
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);
+
+ // Add this pass to the currently available set...
+ if (const PassInfo *PI = IP->getPassInfo()) {
+ CurrentAnalyses[PI] = IP;
+
+ // 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]] = IP;
+ }
+ }
};
// 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 {
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)
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