Viewing file:  quad-atomic.c (2.42 KB) -rw-r--r--
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/* { dg-do run { target { powerpc*-*-linux* && lp64 } } } */
/* { dg-skip-if "" { powerpc*-*-darwin* } } */
/* { dg-require-effective-target p8vector_hw } */
/* { dg-options "-mdejagnu-cpu=power8 -O2 -Wno-shift-overflow" } */
/* Test whether we get the right bits for quad word atomic instructions. */
#include <stdlib.h>
static __int128_t quad_fetch_and (__int128_t *, __int128_t value) __attribute__((__noinline__));
static __int128_t quad_fetch_or (__int128_t *, __int128_t value) __attribute__((__noinline__));
static __int128_t quad_fetch_add (__int128_t *, __int128_t value) __attribute__((__noinline__));
static __int128_t
quad_fetch_and (__int128_t *ptr, __int128_t value)
{
return __atomic_fetch_and (ptr, value, __ATOMIC_ACQUIRE);
}
static __int128_t
quad_fetch_or (__int128_t *ptr, __int128_t value)
{
return __atomic_fetch_or (ptr, value, __ATOMIC_ACQUIRE);
}
static __int128_t
quad_fetch_add (__int128_t *ptr, __int128_t value)
{
return __atomic_fetch_add (ptr, value, __ATOMIC_ACQUIRE);
}
int
main (void)
{
__int128_t result;
__int128_t value;
__int128_t and_input = ((((__int128_t) 0x1234567890abcdefULL) << 64) | ((__int128_t) 0xfedcba0987654321ULL));
__int128_t and_value = ((((__int128_t) 0xfffffffffffffff0ULL) << 64) | ((__int128_t) 0xfffffffffffffff0ULL));
__int128_t and_exp = ((((__int128_t) 0x1234567890abcde0ULL) << 64) | ((__int128_t) 0xfedcba0987654320ULL));
__int128_t or_input = ((((__int128_t) 0x1234567890abcdefULL) << 64) | ((__int128_t) 0xfedcba0987654321ULL));
__int128_t or_value = ((((__int128_t) 0x0000000000000010ULL) << 64) | ((__int128_t) 0x000000000000000eULL));
__int128_t or_exp = ((((__int128_t) 0x1234567890abcdffULL) << 64) | ((__int128_t) 0xfedcba098765432fULL));
__int128_t add_input = ((((__int128_t) 0x1234567890abcdefULL) << 64) | ((__int128_t) 0xfedcba0987654321ULL));
__int128_t add_value = ((((__int128_t) 0x0000000001000000ULL) << 64) | ((__int128_t) 0x0000001000000000ULL));
__int128_t add_exp = ((((__int128_t) 0x1234567891abcdefULL) << 64) | ((__int128_t) 0xfedcba1987654321ULL));
value = and_input;
result = quad_fetch_and (&value, and_value);
if (result != and_input || value != and_exp)
abort ();
value = or_input;
result = quad_fetch_or (&value, or_value);
if (result != or_input || value != or_exp)
abort ();
value = add_input;
result = quad_fetch_add (&value, add_value);
if (result != add_input || value != add_exp)
abort ();
return 0;
}
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