__asm__ __volatile__()

in src/postgres/src_backend_storage_lmgr_s_lock.c [246:289]

• 34 lines of code
• 3 McCabe index (conditional complexity)

	__asm__ __volatile__(
#if (defined(__NetBSD__) || defined(__OpenBSD__)) && defined(__ELF__)
/* no underscore for label and % for registers */
						 "\
.global		tas 				\n\
tas:							\n\
			movel	%sp@(0x4),%a0	\n\
			tas 	%a0@		\n\
			beq 	_success	\n\
			moveq	#-128,%d0	\n\
			rts 				\n\
_success:						\n\
			moveq	#0,%d0		\n\
			rts 				\n"
#else
						 "\
.global		_tas				\n\
_tas:							\n\
			movel	sp@(0x4),a0	\n\
			tas 	a0@			\n\
			beq 	_success	\n\
			moveq 	#-128,d0	\n\
			rts					\n\
_success:						\n\
			moveq 	#0,d0		\n\
			rts					\n"
#endif							/* (__NetBSD__ || __OpenBSD__) && __ELF__ */
		);
}
#endif							/* __m68k__ && !__linux__ */
#endif							/* not __GNUC__ */
#endif							/* HAVE_SPINLOCKS */



/*****************************************************************************/
#if defined(S_LOCK_TEST)

/*
 * test program for verifying a port's spinlock support.
 */

struct test_lock_struct
{