1/* { dg-do run } */
2/* { dg-require-effective-target 3dnow } */
3/* { dg-options "-O2 -m3dnow" } */
4
5#include "mmx-3dnow-check.h"
6
7#include <mm3dnow.h>
8
9typedef union {
10  float f[2];
11  __m64 v;
12} vec_t;
13
14void __attribute__ ((noinline))
15Butterfly_3 (__m64 * D, __m64 SC)
16{
17  __m64 T, T1;
18
19  T = _m_pfmul (D[1], SC);
20  T1 = D[0];
21  D[0] = _m_pfadd (T1, T);
22  D[1] = _m_pfsub (T1, T);
23}
24
25static void
26mmx_3dnow_test (void)
27{
28  vec_t D[2] = { { .f = { 2.0f, 3.0f } },
29		 { .f = { 4.0f, 5.0f } } };
30
31  const vec_t SC = { .f = { 1.0f, 1.0f } };
32
33  Butterfly_3 (&D[0].v, SC.v);
34  _m_femms ();
35
36  if (D[1].f[0] != -2.0f || D[1].f[1] != -2.0f)
37    abort ();
38}
39