Viewing file:  sse2-mmx-packsswb.c (1.07 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-O2 -fno-strict-aliasing -msse2" } */
/* { dg-additional-options "-mno-mmx" { target { ! ia32 } } } */
#include "sse2-check.h"
#include "mmx-vals.h"
__attribute__((noinline, noclone))
static void
test_packsswb (long long *ll1, long long *ll2, long long *r)
{
__m64 t1 = *(__m64 *) ll1;
__m64 t2 = *(__m64 *) ll2;
*(__m64 *) r = _m_packsswb (t1, t2);
}
/* Routine to manually compute the results */
static void
compute_correct_result (long long *dst_p, long long *src_p,
long long *res_p)
{
short *dst = (short *) dst_p;
short *src = (short *) src_p;
char *res = (char *) res_p;
int i;
for (i = 0; i < 4; i++)
{
res[i] = saturate_b (dst[i]);
res[i + 4] = saturate_b (src[i]);
}
}
static void
sse2_test (void)
{
int i;
long long r, ck;
int fail = 0;
/* Run the MMX tests */
for (i = 0; i < MMX_num_ops; i += 2)
{
test_packsswb (&MMXops[i], &MMXops[i + 1], &r);
compute_correct_result (&MMXops[i], &MMXops[i + 1], &ck);
if (ck != r)
fail++;
}
if (fail != 0)
abort ();
}
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