Viewing file:  swaps-p8-27.c (1.18 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-require-effective-target powerpc_p8vector_ok } */
/* { dg-options "-mdejagnu-cpu=power8 -O3 " } */
/* { dg-final { scan-assembler-times "lxvd2x" 2 } } */
/* { dg-final { scan-assembler-times "stxvd2x" 1 } } */
/* { dg-final { scan-assembler-times "xxpermdi" 3 } } */
/* Verify that swap optimization works correctly for a VSX direct splat.
The three xxpermdi's that are generated correspond to two splats
and the __builtin_vsx_xxpermdi. */
int printf (const char *__restrict __format, ...);
typedef double __m128d __attribute__ ((__vector_size__ (16), __may_alias__));
double s1[] = {2134.3343, 6678.346};
double s2[] = {41124.234, 6678.346};
long long dd[] = {1, 2}, d[2];
union{long long l[2]; double d[2];} e;
void
foo ()
{
__m128d source1, source2, dest;
__m128d a, b, c;
e.d[1] = s1[1];
e.l[0] = !__builtin_isunordered(s1[0], s2[0])
&& s1[0] == s2[0] ? -1 : 0;
source1 = __builtin_vec_vsx_ld (0, s1);
source2 = __builtin_vec_vsx_ld (0, s2);
a = __builtin_vec_splat (source1, 0);
b = __builtin_vec_splat (source2, 0);
c = (__m128d)__builtin_vec_cmpeq (a, b);
dest = __builtin_vsx_xxpermdi (source1, c, 1);
*(__m128d *)d = dest;
}
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