ObjFW  Diff

 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

OF_ASSUME_NONNULL_BEGIN

static OF_INLINE int
of_atomic_int_add(volatile int *_Nonnull p, int i)
{
	__asm__ __volatile__ (
	    "0:\n\t"
	    "lwarx	%0, 0, %2\n\t"
	    "add	%0, %0, %1\n\t"

	    : "cc"
	);

	return r;
}

static OF_INLINE void
of_memory_barrier_sync(void)
{
	__asm__ __volatile__ (
	    "sync" ::: "memory"
	);
}

static OF_INLINE void
of_memory_barrier_enter(void)
{
	__asm__ __volatile__ (
	    "sync" ::: "memory"
	);
}

static OF_INLINE void
of_memory_barrier_exit(void)
{
	__asm__ __volatile__ (
	    "sync" ::: "memory"
	);
}

static OF_INLINE void
of_memory_barrier_producer(void)
{
	__asm__ __volatile__ (
	    "sync" ::: "memory"
	);
}

static OF_INLINE void
of_memory_barrier_consumer(void)
{
	__asm__ __volatile__ (
	    "sync" ::: "memory"
	);
}

OF_ASSUME_NONNULL_END