Add new MemoryBuffer::getMemBufferCopy method.

[oota-llvm.git] / lib / Support / Timer.cpp

diff --git a/lib/Support/Timer.cpp b/lib/Support/Timer.cpp
index b0012ceb51819a0285aedf02c592864ea729470d..077995d9fb8993a21d4a07120d20e1c366b0854a 100644 (file)
--- a/lib/Support/Timer.cpp
+++ b/lib/Support/Timer.cpp
@@ -13,11 +13,12 @@
 
 #include "llvm/Support/Timer.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/Streams.h"
 #include "llvm/System/Process.h"
 #include <algorithm>
 #include <fstream>
 #include <functional>
-#include <iostream>
 #include <map>
 using namespace llvm;
 
@@ -26,14 +27,14 @@ namespace llvm { extern std::ostream *GetLibSupportInfoOutputFile(); }
 
 // getLibSupportInfoOutputFilename - This ugly hack is brought to you courtesy
 // of constructor/destructor ordering being unspecified by C++.  Basically the
-// problem is that a Statistic<> object gets destroyed, which ends up calling
+// problem is that a Statistic object gets destroyed, which ends up calling
 // 'GetLibSupportInfoOutputFile()' (below), which calls this function.
 // LibSupportInfoOutputFilename used to be a global variable, but sometimes it
 // would get destroyed before the Statistic, causing havoc to ensue.  We "fix"
 // this by creating the string the first time it is needed and never destroying
 // it.
+static ManagedStatic<std::string> LibSupportInfoOutputFilename;
 static std::string &getLibSupportInfoOutputFilename() {
-  static std::string *LibSupportInfoOutputFilename = new std::string();
   return *LibSupportInfoOutputFilename;
 }
 
@@ -127,7 +128,7 @@ static TimeRecord getTimeRecord(bool Start) {
   return Result;
 }
 
-static std::vector<Timer*> ActiveTimers;
+static ManagedStatic<std::vector<Timer*> > ActiveTimers;
 
 void Timer::startTimer() {
   Started = true;
@@ -137,7 +138,7 @@ void Timer::startTimer() {
   SystemTime -= TR.SystemTime;
   MemUsed    -= TR.MemUsed;
   PeakMemBase = TR.MemUsed;
-  ActiveTimers.push_back(this);
+  ActiveTimers->push_back(this);
 }
 
 void Timer::stopTimer() {
@@ -147,13 +148,13 @@ void Timer::stopTimer() {
   SystemTime += TR.SystemTime;
   MemUsed    += TR.MemUsed;
 
-  if (ActiveTimers.back() == this) {
-    ActiveTimers.pop_back();
+  if (ActiveTimers->back() == this) {
+    ActiveTimers->pop_back();
   } else {
     std::vector<Timer*>::iterator I =
-      std::find(ActiveTimers.begin(), ActiveTimers.end(), this);
-    assert(I != ActiveTimers.end() && "stop but no startTimer?");
-    ActiveTimers.erase(I);
+      std::find(ActiveTimers->begin(), ActiveTimers->end(), this);
+    assert(I != ActiveTimers->end() && "stop but no startTimer?");
+    ActiveTimers->erase(I);
   }
 }
 
@@ -172,8 +173,8 @@ void Timer::sum(const Timer &T) {
 void Timer::addPeakMemoryMeasurement() {
   size_t MemUsed = getMemUsage();
 
-  for (std::vector<Timer*>::iterator I = ActiveTimers.begin(),
-         E = ActiveTimers.end(); I != E; ++I)
+  for (std::vector<Timer*>::iterator I = ActiveTimers->begin(),
+         E = ActiveTimers->end(); I != E; ++I)
     (*I)->PeakMem = std::max((*I)->PeakMem, MemUsed-(*I)->PeakMemBase);
 }
 
@@ -181,14 +182,14 @@ void Timer::addPeakMemoryMeasurement() {
 //   NamedRegionTimer Implementation
 //===----------------------------------------------------------------------===//
 
-static Timer &getNamedRegionTimer(const std::string &Name) {
-  static std::map<std::string, Timer> NamedTimers;
+static ManagedStatic<std::map<std::string, Timer> > NamedTimers;
 
-  std::map<std::string, Timer>::iterator I = NamedTimers.lower_bound(Name);
-  if (I != NamedTimers.end() && I->first == Name)
+static Timer &getNamedRegionTimer(const std::string &Name) {
+  std::map<std::string, Timer>::iterator I = NamedTimers->lower_bound(Name);
+  if (I != NamedTimers->end() && I->first == Name)
     return I->second;
 
-  return NamedTimers.insert(I, std::make_pair(Name, Timer(Name)))->second;
+  return NamedTimers->insert(I, std::make_pair(Name, Timer(Name)))->second;
 }
 
 NamedRegionTimer::NamedRegionTimer(const std::string &Name)
@@ -262,17 +263,17 @@ std::ostream *
 llvm::GetLibSupportInfoOutputFile() {
   std::string &LibSupportInfoOutputFilename = getLibSupportInfoOutputFilename();
   if (LibSupportInfoOutputFilename.empty())
-    return &std::cerr;
+    return cerr.stream();
   if (LibSupportInfoOutputFilename == "-")
-    return &std::cout;
+    return cout.stream();
 
   std::ostream *Result = new std::ofstream(LibSupportInfoOutputFilename.c_str(),
                                            std::ios::app);
   if (!Result->good()) {
-    std::cerr << "Error opening info-output-file '"
-              << LibSupportInfoOutputFilename << " for appending!\n";
+    cerr << "Error opening info-output-file '"
+         << LibSupportInfoOutputFilename << " for appending!\n";
     delete Result;
-    return &std::cerr;
+    return cerr.stream();
   }
   return Result;
 }
@@ -341,7 +342,7 @@ void TimerGroup::removeTimer() {
 
     TimersToPrint.clear();
 
-    if (OutStream != &std::cerr && OutStream != &std::cout)
+    if (OutStream != cerr.stream() && OutStream != cout.stream())
       delete OutStream;   // Close the file...
   }