X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FSupport%2FTimer.cpp;h=210bda754e74957db524630e2b1c18830702a707;hb=822199b9e6867c3fe94bffa6ab57be903014f98a;hp=c2ce90c85880db28360bc382d3b5548aa1247bd0;hpb=34bc6b6e787f27b5c9e05c82de4c1b4ac9b117bc;p=oota-llvm.git

diff --git a/lib/Support/Timer.cpp b/lib/Support/Timer.cpp
index c2ce90c8588..210bda754e7 100644
--- a/lib/Support/Timer.cpp
+++ b/lib/Support/Timer.cpp
@@ -15,9 +15,11 @@
 #include "llvm/ADT/StringMap.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/Mutex.h"
+#include "llvm/Support/MutexGuard.h"
 #include "llvm/Support/Process.h"
 #include "llvm/Support/raw_ostream.h"
 using namespace llvm;
@@ -83,14 +85,13 @@ static TimerGroup *getDefaultTimerGroup() {
   sys::MemoryFence();
   if (tmp) return tmp;
   
-  llvm_acquire_global_lock();
+  sys::SmartScopedLock<true> Lock(*TimerLock);
   tmp = DefaultTimerGroup;
   if (!tmp) {
     tmp = new TimerGroup("Miscellaneous Ungrouped Timers");
     sys::MemoryFence();
     DefaultTimerGroup = tmp;
   }
-  llvm_release_global_lock();
 
   return tmp;
 }
@@ -100,7 +101,7 @@ static TimerGroup *getDefaultTimerGroup() {
 //===----------------------------------------------------------------------===//
 
 void Timer::init(StringRef N) {
-  assert(TG == 0 && "Timer already initialized");
+  assert(!TG && "Timer already initialized");
   Name.assign(N.begin(), N.end());
   Started = false;
   TG = getDefaultTimerGroup();
@@ -108,7 +109,7 @@ void Timer::init(StringRef N) {
 }
 
 void Timer::init(StringRef N, TimerGroup &tg) {
-  assert(TG == 0 && "Timer already initialized");
+  assert(!TG && "Timer already initialized");
   Name.assign(N.begin(), N.end());
   Started = false;
   TG = &tg;
@@ -264,7 +265,7 @@ TimerGroup::TimerGroup(StringRef name)
 TimerGroup::~TimerGroup() {
   // If the timer group is destroyed before the timers it owns, accumulate and
   // print the timing data.
-  while (FirstTimer != nullptr)
+  while (FirstTimer)
     removeTimer(*FirstTimer);
   
   // Remove the group from the TimerGroupList.
@@ -291,7 +292,7 @@ void TimerGroup::removeTimer(Timer &T) {
   
   // Print the report when all timers in this group are destroyed if some of
   // them were started.
-  if (FirstTimer != nullptr || TimersToPrint.empty())
+  if (FirstTimer || TimersToPrint.empty())
     return;
   
   raw_ostream *OutStream = CreateInfoOutputFile();