| /* PR target/103068 */ |
| /* { dg-do compile } */ |
| /* { dg-additional-options "-O2 -march=x86-64 -mtune=generic -mrelax-cmpxchg-loop" } */ |
| |
| #include <stdint.h> |
| |
| #define FUNC_CMPXCHG(TYPE) \ |
| __attribute__ ((noinline, noclone)) \ |
| TYPE f_##TYPE##_cmpxchg (TYPE *lock, TYPE newval, TYPE oldval) \ |
| { \ |
| do \ |
| { \ |
| newval = oldval | 1; \ |
| } while (! __atomic_compare_exchange_n (lock, &oldval, newval, \ |
| 0, __ATOMIC_RELEASE, \ |
| __ATOMIC_RELAXED)); \ |
| return *lock; \ |
| } |
| |
| |
| FUNC_CMPXCHG (int64_t) |
| FUNC_CMPXCHG (int) |
| FUNC_CMPXCHG (short) |
| FUNC_CMPXCHG (char) |
