//===-- LeakDetector.cpp - Implement LeakDetector interface ---------------===//
//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
// This file implements the LeakDetector class.
//
//===----------------------------------------------------------------------===//
-#include "Support/LeakDetector.h"
+#include "LLVMContextImpl.h"
+#include "llvm/Support/LeakDetector.h"
+#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/System/Mutex.h"
+#include "llvm/System/Threading.h"
#include "llvm/Value.h"
-#include <set>
-#include <iostream>
+using namespace llvm;
-// Lazily allocate set so that release build doesn't have to do anything.
-static std::set<const void*> *Objects = 0;
-static std::set<const Value*> *LLVMObjects = 0;
+static ManagedStatic<sys::SmartMutex<true> > ObjectsLock;
+static ManagedStatic<LeakDetectorImpl<void> > Objects;
-void LeakDetector::addGarbageObjectImpl(void *Object) {
- if (Objects == 0)
- Objects = new std::set<const void*>();
- assert(Objects->count(Object) == 0 && "Object already in set!");
- Objects->insert(Object);
+static void clearGarbage(LLVMContext &Context) {
+ Objects->clear();
+ Context.pImpl->LLVMObjects.clear();
}
-void LeakDetector::removeGarbageObjectImpl(void *Object) {
- if (Objects)
- Objects->erase(Object);
+void LeakDetector::addGarbageObjectImpl(void *Object) {
+ sys::SmartScopedLock<true> Lock(*ObjectsLock);
+ Objects->addGarbage(Object);
}
void LeakDetector::addGarbageObjectImpl(const Value *Object) {
- if (LLVMObjects == 0)
- LLVMObjects = new std::set<const Value*>();
- assert(LLVMObjects->count(Object) == 0 && "Object already in set!");
- LLVMObjects->insert(Object);
+ LLVMContextImpl *pImpl = Object->getContext().pImpl;
+ pImpl->LLVMObjects.addGarbage(Object);
}
-void LeakDetector::removeGarbageObjectImpl(const Value *Object) {
- if (LLVMObjects)
- LLVMObjects->erase(Object);
+void LeakDetector::removeGarbageObjectImpl(void *Object) {
+ sys::SmartScopedLock<true> Lock(*ObjectsLock);
+ Objects->removeGarbage(Object);
}
-void LeakDetector::checkForGarbageImpl(const std::string &Message) {
- if ((Objects && !Objects->empty()) || (LLVMObjects && !LLVMObjects->empty())){
- std::cerr << "Leaked objects found: " << Message << "\n";
-
- if (Objects && !Objects->empty()) {
- std::cerr << " Non-Value objects leaked:";
- for (std::set<const void*>::iterator I = Objects->begin(),
- E = Objects->end(); I != E; ++I)
- std::cerr << " " << *I;
- }
-
- if (LLVMObjects && !LLVMObjects->empty()) {
- std::cerr << " LLVM Value subclasses leaked:";
- for (std::set<const Value*>::iterator I = LLVMObjects->begin(),
- E = LLVMObjects->end(); I != E; ++I)
- std::cerr << **I << "\n";
- }
+void LeakDetector::removeGarbageObjectImpl(const Value *Object) {
+ LLVMContextImpl *pImpl = Object->getContext().pImpl;
+ pImpl->LLVMObjects.removeGarbage(Object);
+}
- std::cerr << "This is probably because you removed an LLVM value "
- << "(Instruction, BasicBlock, \netc), but didn't delete it. "
- << "Please check your code for memory leaks.\n";
+void LeakDetector::checkForGarbageImpl(LLVMContext &Context,
+ const std::string &Message) {
+ LLVMContextImpl *pImpl = Context.pImpl;
+ sys::SmartScopedLock<true> Lock(*ObjectsLock);
+
+ Objects->setName("GENERIC");
+ pImpl->LLVMObjects.setName("LLVM");
+
+ // use non-short-circuit version so that both checks are performed
+ if (Objects->hasGarbage(Message) |
+ pImpl->LLVMObjects.hasGarbage(Message))
+ errs() << "\nThis is probably because you removed an object, but didn't "
+ << "delete it. Please check your code for memory leaks.\n";
- // Clear out results so we don't get duplicate warnings on next call...
- delete Objects; delete LLVMObjects;
- Objects = 0; LLVMObjects = 0;
- }
+ // Clear out results so we don't get duplicate warnings on
+ // next call...
+ clearGarbage(Context);
}