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Factor timer code out of PassManager implementation, into a generic interface

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exposed by Support/Timer.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3993 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2002-10-01 19:54:07 +00:00
parent 6c38a79d77
commit f1da555028
2 changed files with 22 additions and 150 deletions
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42
lib/VMCore/PassManagerT.h
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@@ -18,6 +18,7 @@
#include "llvm/Pass.h"
#include "Support/CommandLine.h"
#include "Support/LeakDetector.h"
#include "Support/Timer.h"
#include <algorithm>
#include <iostream>
class Annotable;
@@ -75,25 +76,13 @@ struct PMDebug {
// 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;
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.
@@ -101,10 +90,23 @@ public:
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) {
std::map<Pass*, Timer>::iterator I = TimingData.find(P);
if (I == TimingData.end())
I = TimingData.insert(std::make_pair(P, Timer(P->getPassName()))).first;
I->second.startTimer();
}
void passEnded(Pass *P) {
std::map<Pass*, Timer>::iterator I = TimingData.find(P);
assert (I != TimingData.end() && "passStarted/passEnded not nested right!");
I->second.stopTimer();
}
};
//===----------------------------------------------------------------------===//