// { dg-options "-O3 -flifetime-dse=1" } | |
// { dg-do run } | |
typedef __SIZE_TYPE__ size_t; | |
inline void * operator new (size_t, void *p) { return p; } | |
struct A | |
{ | |
int i; | |
A() {} | |
~A() {} | |
}; | |
int main() | |
{ | |
int ar[1] = { 42 }; | |
A* ap = new(ar) A; | |
// With -flifetime-dse=1 we retain the old value. | |
if (ap->i != 42) __builtin_abort(); | |
ap->i = 42; | |
ap->~A(); | |
// When the destructor ends the object no longer exists. | |
if (ar[0] == 42) __builtin_abort(); | |
} |