//===-- LeakDetector.cpp - Implement LeakDetector interface ---------------===//
-//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+// 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 "llvm/Support/LeakDetector.h"
+#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Streams.h"
#include "llvm/Value.h"
-#include <set>
using namespace llvm;
namespace {
+ template <class T>
+ struct VISIBILITY_HIDDEN PrinterTrait {
+ static void print(const T* P) { cerr << P; }
+ };
+
+ template<>
+ struct VISIBILITY_HIDDEN PrinterTrait<Value> {
+ static void print(const Value* P) { cerr << *P; }
+ };
template <typename T>
- struct LeakDetectorImpl {
- LeakDetectorImpl(const char* const name) : Cache(0), Name(name) { }
+ struct VISIBILITY_HIDDEN LeakDetectorImpl {
+ explicit LeakDetectorImpl(const char* const name) : Cache(0), Name(name) { }
// Because the most common usage pattern, by far, is to add a
// garbage object, then remove it immediately, we optimize this
if (o == Cache)
Cache = 0; // Cache hit
else
- Ts.erase(o);
+ Ts.erase(o);
}
bool hasGarbage(const std::string& Message) {
assert(Cache == 0 && "No value should be cached anymore!");
if (!Ts.empty()) {
- std::cerr
- << "Leaked " << Name << " objects found: " << Message << ":\n\t";
- std::copy(Ts.begin(), Ts.end(),
- std::ostream_iterator<const T*>(std::cerr, " "));
- std::cerr << '\n';
-
- // Clear out results so we don't get duplicate warnings on
- // next call...
- Ts.clear();
+ cerr << "Leaked " << Name << " objects found: " << Message << ":\n";
+ for (typename SmallPtrSet<const T*, 8>::iterator I = Ts.begin(),
+ E = Ts.end(); I != E; ++I) {
+ cerr << "\t";
+ PrinterTrait<T>::print(*I);
+ cerr << "\n";
+ }
+ cerr << '\n';
+
return true;
}
return false;
}
private:
- std::set<const T*> Ts;
- const T* Cache;
- const char* const Name;
+ SmallPtrSet<const T*, 8> Ts;
+ const T* Cache;
+ const char* const Name;
};
- typedef LeakDetectorImpl<void> Objects;
- typedef LeakDetectorImpl<Value> LLVMObjects;
+ static LeakDetectorImpl<void> *Objects;
+ static LeakDetectorImpl<Value> *LLVMObjects;
+
+ static LeakDetectorImpl<void> &getObjects() {
+ if (Objects == 0)
+ Objects = new LeakDetectorImpl<void>("GENERIC");
+ return *Objects;
+ }
- Objects& getObjects() {
- static Objects o("GENERIC");
- return o;
+ static LeakDetectorImpl<Value> &getLLVMObjects() {
+ if (LLVMObjects == 0)
+ LLVMObjects = new LeakDetectorImpl<Value>("LLVM");
+ return *LLVMObjects;
}
- LLVMObjects& getLLVMObjects() {
- static LLVMObjects o("LLVM");
- return o;
+ static void clearGarbage() {
+ delete Objects;
+ delete LLVMObjects;
+ Objects = 0;
+ LLVMObjects = 0;
}
}
// use non-short-circuit version so that both checks are performed
if (getObjects().hasGarbage(Message) |
getLLVMObjects().hasGarbage(Message))
- std::cerr << "\nThis is probably because you removed an object, but didn't "
- "delete it. Please check your code for memory leaks.\n";
+ cerr << "\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...
+ clearGarbage();
}