Viewing file:  swaps-p8-12.c (1.22 KB) -rw-r--r--
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/* { dg-do compile { target le } } */
/* { dg-require-effective-target powerpc_p8vector_ok } */
/* { dg-options "-mdejagnu-cpu=power8 -O3" } */
/* { dg-final { scan-assembler "lxvd2x" } } */
/* { dg-final { scan-assembler "stxvd2x" } } */
/* { dg-final { scan-assembler-not "xxpermdi" } } */
#include "altivec.h"
void abort ();
#define N 4096
int ca[N] __attribute__((aligned(16)));
int cb[N] __attribute__((aligned(16)));
int cc[N] __attribute__((aligned(16)));
int cd[N] __attribute__((aligned(16)));
int hey;
__attribute__((noinline)) void foo ()
{
int i;
vector int va, vb, vc, vd, tmp;
vector unsigned int threes = vec_splat_u32(3);
for (i = 0; i < N; i+=4) {
vb = vec_vsx_ld (0, &cb[i]);
vc = vec_vsx_ld (0, &cc[i]);
vd = vec_vsx_ld (0, &cd[i]);
tmp = vec_add (vb, vc);
tmp = vec_sub (tmp, vd);
tmp = vec_sra (tmp, threes);
hey = tmp[3];
vec_vsx_st (tmp, 0, &ca[i]);
}
}
__attribute__((noinline)) void init ()
{
int i;
for (i = 0; i < N; ++i) {
cb[i] = 3 * i - 2048;
cc[i] = -5 * i + 93;
cd[i] = i + 14;
}
}
int main ()
{
int i;
init ();
foo ();
for (i = 0; i < N; ++i)
if (ca[i] != (-3 * i - 1969) >> 3)
abort ();
if (hey != ca[N-1])
abort ();
return 0;
}
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