Viewing file:  pack01.c (2.11 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" } */
#include <stddef.h>
#include <stdlib.h>
#include <altivec.h>
#include <string.h>
#ifdef DEBUG
#include <stdio.h>
#endif
typedef __int128_t __attribute__((__vector_size__(16))) vector_128_t;
typedef __int128_t scalar_128_t;
typedef unsigned long long scalar_64_t;
volatile scalar_64_t one = 1;
volatile scalar_64_t two = 2;
int
main (void)
{
scalar_128_t a = (((scalar_128_t)one) << 64) | ((scalar_128_t)two);
vector_128_t v1 = (vector_128_t) { a };
vector_128_t v2 = __builtin_pack_vector_int128 (one, two);
scalar_64_t x0 = __builtin_unpack_vector_int128 (v1, 0);
scalar_64_t x1 = __builtin_unpack_vector_int128 (v1, 1);
vector_128_t v3 = __builtin_pack_vector_int128 (x0, x1);
size_t i;
union {
scalar_128_t i128;
vector_128_t v128;
scalar_64_t u64;
unsigned char uc[sizeof (scalar_128_t)];
char c[sizeof (scalar_128_t)];
} u, u2;
#ifdef DEBUG
{
printf ("a = 0x");
u.i128 = a;
for (i = 0; i < sizeof (scalar_128_t); i++)
printf ("%.2x", u.uc[i]);
printf ("\nv1 = 0x");
u.v128 = v1;
for (i = 0; i < sizeof (scalar_128_t); i++)
printf ("%.2x", u.uc[i]);
printf ("\nv2 = 0x");
u.v128 = v2;
for (i = 0; i < sizeof (scalar_128_t); i++)
printf ("%.2x", u.uc[i]);
printf ("\nv3 = 0x");
u.v128 = v3;
for (i = 0; i < sizeof (scalar_128_t); i++)
printf ("%.2x", u.uc[i]);
printf ("\nx0 = 0x");
u.u64 = x0;
for (i = 0; i < sizeof (scalar_64_t); i++)
printf ("%.2x", u.uc[i]);
printf ("\nx1 = 0x");
u.u64 = x1;
for (i = 0; i < sizeof (scalar_64_t); i++)
printf ("%.2x", u.uc[i]);
printf ("\n");
}
#endif
u2.i128 = a;
u.v128 = v1;
if (memcmp (u.c, u2.c, sizeof (scalar_128_t)) != 0)
abort ();
u.v128 = v2;
if (memcmp (u.c, u2.c, sizeof (scalar_128_t)) != 0)
abort ();
u.v128 = v3;
if (memcmp (u.c, u2.c, sizeof (scalar_128_t)) != 0)
abort ();
return 0;
}
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