| // { 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(); | |
| } |