NewDelete-atomics.cpp
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// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDeleteLeaks -DLEAKS -std=c++11 -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDeleteLeaks -DLEAKS -std=c++11 -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -analyzer-inline-max-stack-depth 2 -analyzer-config ipa-always-inline-size=2 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -verify %s
// RUN: %clang_analyze_cc1 -analyzer-inline-max-stack-depth 2 -analyzer-config ipa-always-inline-size=2 -analyzer-checker=core,cplusplus.NewDeleteLeaks -DLEAKS -std=c++11 -verify %s
// RUN: %clang_analyze_cc1 -analyzer-inline-max-stack-depth 2 -analyzer-config ipa-always-inline-size=2 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -analyzer-inline-max-stack-depth 2 -analyzer-config ipa-always-inline-size=2 -analyzer-checker=core,cplusplus.NewDeleteLeaks -DLEAKS -std=c++11 -DTEST_INLINABLE_ALLOCATORS -verify %s
// expected-no-diagnostics
#include "Inputs/system-header-simulator-cxx.h"
typedef enum memory_order {
memory_order_relaxed = __ATOMIC_RELAXED,
memory_order_consume = __ATOMIC_CONSUME,
memory_order_acquire = __ATOMIC_ACQUIRE,
memory_order_release = __ATOMIC_RELEASE,
memory_order_acq_rel = __ATOMIC_ACQ_REL,
memory_order_seq_cst = __ATOMIC_SEQ_CST
} memory_order;
class Obj {
int RefCnt;
public:
int incRef() {
return __c11_atomic_fetch_add((volatile _Atomic(int) *)&RefCnt, 1,
memory_order_relaxed);
}
int decRef() {
return __c11_atomic_fetch_sub((volatile _Atomic(int) *)&RefCnt, 1,
memory_order_relaxed);
}
void foo();
};
class IntrusivePtr {
Obj *Ptr;
public:
IntrusivePtr(Obj *Ptr) : Ptr(Ptr) {
Ptr->incRef();
}
IntrusivePtr(const IntrusivePtr &Other) : Ptr(Other.Ptr) {
Ptr->incRef();
}
~IntrusivePtr() {
// We should not take the path on which the object is deleted.
if (Ptr->decRef() == 1)
delete Ptr;
}
Obj *getPtr() const { return Ptr; } // no-warning
};
void testDestroyLocalRefPtr() {
IntrusivePtr p1(new Obj());
{
IntrusivePtr p2(p1);
}
// p1 still maintains ownership. The object is not deleted.
p1.getPtr()->foo(); // no-warning
}
void testDestroySymbolicRefPtr(const IntrusivePtr &p1) {
{
IntrusivePtr p2(p1);
}
// p1 still maintains ownership. The object is not deleted.
p1.getPtr()->foo(); // no-warning
}