From f1da5550286a43a412558671e54e3612de323628 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 1 Oct 2002 19:54:07 +0000
Subject: Factor timer code out of PassManager implementation, into a generic
 interface exposed by Support/Timer.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3993 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/Pass.cpp | 130 ----------------------------------------------------
 1 file changed, 130 deletions(-)

(limited to 'lib/VMCore/Pass.cpp')

diff --git a/lib/VMCore/Pass.cpp b/lib/VMCore/Pass.cpp
index 85c4dec5fe..0be92e9f55 100644
--- a/lib/VMCore/Pass.cpp
+++ b/lib/VMCore/Pass.cpp
@@ -80,84 +80,6 @@ static cl::opt<bool>
 EnableTiming("time-passes",
             cl::desc("Time each pass, printing elapsed time for each on exit"));
 
-static TimeRecord getTimeRecord() {
-  static unsigned long PageSize = 0;
-
-  if (PageSize == 0) {
-#ifdef _SC_PAGE_SIZE
-    PageSize = sysconf(_SC_PAGE_SIZE);
-#else
-#ifdef _SC_PAGESIZE
-    PageSize = sysconf(_SC_PAGESIZE);
-#else
-    PageSize = getpagesize();
-#endif
-#endif
-  }
-
-  struct rusage RU;
-  struct timeval T;
-  gettimeofday(&T, 0);
-  if (getrusage(RUSAGE_SELF, &RU)) {
-    perror("getrusage call failed: -time-passes info incorrect!");
-  }
-
-  TimeRecord Result;
-  Result.Elapsed    =           T.tv_sec +           T.tv_usec/1000000.0;
-  Result.UserTime   = RU.ru_utime.tv_sec + RU.ru_utime.tv_usec/1000000.0;
-  Result.SystemTime = RU.ru_stime.tv_sec + RU.ru_stime.tv_usec/1000000.0;
-  Result.MaxRSS = RU.ru_maxrss*PageSize;
-
-  return Result;
-}
-
-bool TimeRecord::operator<(const TimeRecord &TR) const {
-  // Primary sort key is User+System time
-  if (UserTime+SystemTime < TR.UserTime+TR.SystemTime)
-    return true;
-  if (UserTime+SystemTime > TR.UserTime+TR.SystemTime)
-    return false;
-
-  // Secondary sort key is Wall Time
-  return Elapsed < TR.Elapsed;
-}
-
-void TimeRecord::passStart(const TimeRecord &T) {
-  Elapsed    -= T.Elapsed;
-  UserTime   -= T.UserTime;
-  SystemTime -= T.SystemTime;
-  RSSTemp     = T.MaxRSS;
-}
-
-void TimeRecord::passEnd(const TimeRecord &T) {
-  Elapsed    += T.Elapsed;
-  UserTime   += T.UserTime;
-  SystemTime += T.SystemTime;
-  RSSTemp     = T.MaxRSS - RSSTemp;
-  MaxRSS      = std::max(MaxRSS, RSSTemp);
-}
-
-static void printVal(double Val, double Total) {
-  if (Total < 1e-7)   // Avoid dividing by zero...
-    fprintf(stderr, "        -----     ");
-  else
-    fprintf(stderr, "  %7.4f (%5.1f%%)", Val, Val*100/Total);
-}
-
-void TimeRecord::print(const char *PassName, const TimeRecord &Total) const {
-  printVal(UserTime, Total.UserTime);
-  printVal(SystemTime, Total.SystemTime);
-  printVal(UserTime+SystemTime, Total.UserTime+Total.SystemTime);
-  printVal(Elapsed, Total.Elapsed);
-  
-  fprintf(stderr, "  ");
-
-  if (Total.MaxRSS)
-    std::cerr << MaxRSS << "\t";
-  std::cerr << PassName << "\n";
-}
-
-
 // Create method.  If Timing is enabled, this creates and returns a new timing
 // object, otherwise it returns null.
 //
@@ -165,58 +87,6 @@ TimingInfo *TimingInfo::create() {
   return EnableTiming ? new TimingInfo() : 0;
 }
 
-void TimingInfo::passStarted(Pass *P) {
-  TimingData[P].passStart(getTimeRecord());
-}
-void TimingInfo::passEnded(Pass *P) {
-  TimingData[P].passEnd(getTimeRecord());
-}
-void TimeRecord::sum(const TimeRecord &TR) {
-  Elapsed    += TR.Elapsed;
-  UserTime   += TR.UserTime;
-  SystemTime += TR.SystemTime;
-  MaxRSS     += TR.MaxRSS;
-}
-
-// TimingDtor - Print out information about timing information
-TimingInfo::~TimingInfo() {
-  // Iterate over all of the data, converting it into the dual of the data map,
-  // so that the data is sorted by amount of time taken, instead of pointer.
-  //
-  std::vector<std::pair<TimeRecord, Pass*> > Data;
-  TimeRecord Total;
-  for (std::map<Pass*, TimeRecord>::iterator I = TimingData.begin(),
-         E = TimingData.end(); I != E; ++I)
-    // Throw out results for "grouping" pass managers...
-    if (!dynamic_cast<AnalysisResolver*>(I->first)) {
-      Data.push_back(std::make_pair(I->second, I->first));
-      Total.sum(I->second);
-    }
-  
-  // Sort the data by time as the primary key, in reverse order...
-  std::sort(Data.begin(), Data.end(),
-            std::greater<std::pair<TimeRecord, Pass*> >());
-
-  // Print out timing header...
-  std::cerr << std::string(79, '=') << "\n"
-            << "                      ... Pass execution timing report ...\n"
-            << std::string(79, '=') << "\n  Total Execution Time: "
-            << (Total.UserTime+Total.SystemTime) << " seconds ("
-            << Total.Elapsed << " wall clock)\n\n   ---User Time---   "
-            << "--System Time--   --User+System--   ---Wall Time---";
-
-  if (Total.MaxRSS)
-    std::cerr << " ---Mem---";
-  std::cerr << "  --- Pass Name ---\n";
-
-  // Loop through all of the timing data, printing it out...
-  for (unsigned i = 0, e = Data.size(); i != e; ++i)
-    Data[i].first.print(Data[i].second->getPassName(), Total);
-
-  Total.print("TOTAL", Total);
-}
-
-
 void PMDebug::PrintArgumentInformation(const Pass *P) {
   // Print out passes in pass manager...
   if (const AnalysisResolver *PM = dynamic_cast<const AnalysisResolver*>(P)) {
-- 
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