maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Use an RWMutex instead of a Mutex in PassRegistry. 

Patch by Alex Crichton <alex@crichton.co>.  Approved by Chris Lattner.

llvm-svn: 185566
This commit is contained in:
Chad Rosier 2013-07-03 18:38:08 +00:00
parent a9d6a0e1f8
commit 673a7db236
1 changed files with 11 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
llvm/lib/IR/PassRegistry.cpp
View File

@ -21,6 +21,7 @@
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/Mutex.h"
#include "llvm/Support/RWMutex.h"
#include <vector>
using namespace llvm;
@ -35,7 +36,7 @@ PassRegistry *PassRegistry::getPassRegistry() {
return &*PassRegistryObj;
}
static ManagedStatic<sys::SmartMutex<true> > Lock;
static ManagedStatic<sys::SmartRWMutex<true> > Lock;
//===----------------------------------------------------------------------===//
// PassRegistryImpl
@ -72,7 +73,7 @@ void *PassRegistry::getImpl() const {
//
PassRegistry::~PassRegistry() {
sys::SmartScopedLock<true> Guard(*Lock);
sys::SmartScopedWriter<true> Guard(*Lock);
PassRegistryImpl *Impl = static_cast<PassRegistryImpl*>(pImpl);
for (std::vector<const PassInfo*>::iterator I = Impl->ToFree.begin(),
@ -84,14 +85,14 @@ PassRegistry::~PassRegistry() {
}
const PassInfo *PassRegistry::getPassInfo(const void *TI) const {
sys::SmartScopedLock<true> Guard(*Lock);
sys::SmartScopedReader<true> Guard(*Lock);
PassRegistryImpl *Impl = static_cast<PassRegistryImpl*>(getImpl());
PassRegistryImpl::MapType::const_iterator I = Impl->PassInfoMap.find(TI);
return I != Impl->PassInfoMap.end() ? I->second : 0;
}
const PassInfo *PassRegistry::getPassInfo(StringRef Arg) const {
sys::SmartScopedLock<true> Guard(*Lock);
sys::SmartScopedReader<true> Guard(*Lock);
PassRegistryImpl *Impl = static_cast<PassRegistryImpl*>(getImpl());
PassRegistryImpl::StringMapType::const_iterator
I = Impl->PassInfoStringMap.find(Arg);
@ -103,7 +104,7 @@ const PassInfo *PassRegistry::getPassInfo(StringRef Arg) const {
//
void PassRegistry::registerPass(const PassInfo &PI, bool ShouldFree) {
sys::SmartScopedLock<true> Guard(*Lock);
sys::SmartScopedWriter<true> Guard(*Lock);
PassRegistryImpl *Impl = static_cast<PassRegistryImpl*>(getImpl());
bool Inserted =
Impl->PassInfoMap.insert(std::make_pair(PI.getTypeInfo(),&PI)).second;
@ -120,7 +121,7 @@ void PassRegistry::registerPass(const PassInfo &PI, bool ShouldFree) {
}
void PassRegistry::unregisterPass(const PassInfo &PI) {
sys::SmartScopedLock<true> Guard(*Lock);
sys::SmartScopedWriter<true> Guard(*Lock);
PassRegistryImpl *Impl = static_cast<PassRegistryImpl*>(getImpl());
PassRegistryImpl::MapType::iterator I =
Impl->PassInfoMap.find(PI.getTypeInfo());
@ -132,7 +133,7 @@ void PassRegistry::unregisterPass(const PassInfo &PI) {
}
void PassRegistry::enumerateWith(PassRegistrationListener *L) {
sys::SmartScopedLock<true> Guard(*Lock);
sys::SmartScopedReader<true> Guard(*Lock);
PassRegistryImpl *Impl = static_cast<PassRegistryImpl*>(getImpl());
for (PassRegistryImpl::MapType::const_iterator I = Impl->PassInfoMap.begin(),
E = Impl->PassInfoMap.end(); I != E; ++I)
@ -160,7 +161,7 @@ void PassRegistry::registerAnalysisGroup(const void *InterfaceID,
assert(ImplementationInfo &&
"Must register pass before adding to AnalysisGroup!");
sys::SmartScopedLock<true> Guard(*Lock);
sys::SmartScopedWriter<true> Guard(*Lock);
// Make sure we keep track of the fact that the implementation implements
// the interface.
@ -186,13 +187,13 @@ void PassRegistry::registerAnalysisGroup(const void *InterfaceID,
}
void PassRegistry::addRegistrationListener(PassRegistrationListener *L) {
sys::SmartScopedLock<true> Guard(*Lock);
sys::SmartScopedWriter<true> Guard(*Lock);
PassRegistryImpl *Impl = static_cast<PassRegistryImpl*>(getImpl());
Impl->Listeners.push_back(L);
}
void PassRegistry::removeRegistrationListener(PassRegistrationListener *L) {
sys::SmartScopedLock<true> Guard(*Lock);
sys::SmartScopedWriter<true> Guard(*Lock);
// NOTE: This is necessary, because removeRegistrationListener() can be called
// as part of the llvm_shutdown sequence. Since we have no control over the