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Guard mutation of the timing info global. 

llvm-svn: 73639
This commit is contained in:
Owen Anderson 2009-06-17 21:28:54 +00:00
parent 791505b5ea
commit 0dd39fdf96
1 changed files with 9 additions and 0 deletions
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9
llvm/lib/VMCore/PassManager.cpp
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@ -20,6 +20,8 @@
#include "llvm/Support/Streams.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Threading.h"
#include "llvm/System/Mutex.h"
#include "llvm/Analysis/Dominators.h"
#include "llvm-c/Core.h"
#include <algorithm>
@ -355,6 +357,9 @@ namespace {
/// amount of time each pass takes to execute. This only happens when
/// -time-passes is enabled on the command line.
///
static ManagedStatic<sys::Mutex> TimingInfoMutex;
class VISIBILITY_HIDDEN TimingInfo {
std::map<Pass*, Timer> TimingData;
TimerGroup TG;
@ -379,18 +384,22 @@ public:
if (dynamic_cast<PMDataManager *>(P))
return;
if (llvm_is_multithreaded()) TimingInfoMutex->acquire();
std::map<Pass*, Timer>::iterator I = TimingData.find(P);
if (I == TimingData.end())
I=TimingData.insert(std::make_pair(P, Timer(P->getPassName(), TG))).first;
I->second.startTimer();
if (llvm_is_multithreaded()) TimingInfoMutex->release();
}
void passEnded(Pass *P) {
if (dynamic_cast<PMDataManager *>(P))
return;
if (llvm_is_multithreaded()) TimingInfoMutex->acquire();
std::map<Pass*, Timer>::iterator I = TimingData.find(P);
assert(I != TimingData.end() && "passStarted/passEnded not nested right!");
I->second.stopTimer();
if (llvm_is_multithreaded()) TimingInfoMutex->release();
}
};