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Dramatically simplify how -time-passes works.

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This also enables -time-passes for FunctionPassManagers, which allows it to
be used for the JIT


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7834 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-08-14 05:20:28 +00:00
parent 6ad9076554
commit 01189952bb
2 changed files with 24 additions and 62 deletions
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16
lib/VMCore/Pass.cpp
View File

@ -90,11 +90,17 @@ static cl::opt<bool>
EnableTiming("time-passes",
cl::desc("Time each pass, printing elapsed time for each on exit"));
// Create method. If Timing is enabled, this creates and returns a new timing
// object, otherwise it returns null.
//
TimingInfo *TimingInfo::create() {
return EnableTiming ? new TimingInfo() : 0;
// createTheTimeInfo - This method either initializes the TheTimeInfo pointer to
// a non null value (if the -time-passes option is enabled) or it leaves it
// null. It may be called multiple times.
void TimingInfo::createTheTimeInfo() {
if (!EnableTiming || TheTimeInfo) return;
// Constructed the first time this is called, iff -time-passes is enabled.
// This guarantees that the object will be constructed before static globals,
// thus it will be destroyed before them.
static TimingInfo TTI;
TheTimeInfo = &TTI;
}
void PMDebug::PrintArgumentInformation(const Pass *P) {

70
lib/VMCore/PassManagerT.h
View File

@ -84,11 +84,6 @@ class TimingInfo {
// 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() {
// Delete all of the timers...
@ -96,6 +91,11 @@ public:
// TimerGroup is deleted next, printing the report.
}
// createTheTimeInfo - This method either initializes the TheTimeInfo pointer
// to a non null value (if the -time-passes option is enabled) or it leaves it
// null. It may be called multiple times.
static void createTheTimeInfo();
void passStarted(Pass *P) {
if (dynamic_cast<AnalysisResolver*>(P)) return;
std::map<Pass*, Timer>::iterator I = TimingData.find(P);
@ -111,6 +111,8 @@ public:
}
};
static TimingInfo *TheTimeInfo;
//===----------------------------------------------------------------------===//
// Declare the PassManagerTraits which will be specialized...
//
@ -176,6 +178,8 @@ public:
closeBatcher();
CurrentAnalyses.clear();
TimingInfo::createTheTimeInfo();
// Add any immutable passes to the CurrentAnalyses set...
for (unsigned i = 0, e = ImmutablePasses.size(); i != e; ++i) {
ImmutablePass *IPass = ImmutablePasses[i];
@ -235,9 +239,9 @@ public:
}
// Run the sub pass!
startPass(P);
if (TheTimeInfo) TheTimeInfo->passStarted(P);
bool Changed = runPass(P, M);
endPass(P);
if (TheTimeInfo) TheTimeInfo->passEnded(P);
MadeChanges |= Changed;
// Check for memory leaks by the pass...
@ -305,6 +309,7 @@ public:
}
}
}
return MadeChanges;
}
@ -375,20 +380,6 @@ public:
return 0;
}
// {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.
//
void startPass(Pass *P) {
if (Parent) Parent->startPass(P);
else PassStarted(P);
}
void endPass(Pass *P) {
if (Parent) Parent->endPass(P);
else PassEnded(P);
}
// markPassUsed - 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
@ -619,10 +610,6 @@ template<> struct PassManagerTraits<BasicBlock> : public BasicBlockPass {
return P->runOnBasicBlock(*M);
}
// Dummy implementation of PassStarted/PassEnded
static void PassStarted(Pass *P) {}
static void PassEnded(Pass *P) {}
// getPMName() - Return the name of the unit the PassManager operates on for
// debugging.
const char *getPMName() const { return "BasicBlock"; }
@ -669,10 +656,6 @@ template<> struct PassManagerTraits<Function> : public FunctionPass {
return P->runOnFunction(*F);
}
// Dummy implementation of PassStarted/PassEnded
static void PassStarted(Pass *P) {}
static void PassEnded(Pass *P) {}
// getPMName() - Return the name of the unit the PassManager operates on for
// debugging.
const char *getPMName() const { return "Function"; }
@ -716,37 +699,10 @@ template<> struct PassManagerTraits<Module> : public Pass {
const char *getPMName() const { return "Module"; }
virtual const char *getPassName() const { return "Module Pass Manager"; }
// TimingInformation - This data member maintains timing information for each
// of the passes that is executed.
//
TimingInfo *TimeInfo;
// PassStarted/Ended - This callback is notified any time a pass is started
// or stops. This is used to collect timing information about the different
// passes being executed.
//
void PassStarted(Pass *P) {
if (TimeInfo) TimeInfo->passStarted(P);
}
void PassEnded(Pass *P) {
if (TimeInfo) TimeInfo->passEnded(P);
}
// run - Implement the PassManager interface...
bool run(Module &M) {
TimeInfo = TimingInfo::create();
bool Result = ((PassManagerT<Module>*)this)->runOnUnit(&M);
if (TimeInfo) {
delete TimeInfo;
TimeInfo = 0;
}
return Result;
return ((PassManagerT<Module>*)this)->runOnUnit(&M);
}
// PassManagerTraits constructor - Create a timing info object if the user
// specified timing info should be collected on the command line.
//
PassManagerTraits() : TimeInfo(0) {}
};