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/* { dg-do run } */

/* { dg-require-effective-target 3dnow } */

/* { dg-options "-O2 -m3dnow" } */

#include "mmx-3dnow-check.h"

#include <mm3dnow.h>

typedef union {

  float f[2];

  __m64 v;

} vec_t;

void __attribute__ ((noinline))

Butterfly_3 (__m64 * D, __m64 SC)

{

  __m64 T, T1;

  T = _m_pfmul (D[1], SC);

  T1 = D[0];

  D[0] = _m_pfadd (T1, T);

  D[1] = _m_pfsub (T1, T);

}

static void

mmx_3dnow_test (void)

{

  vec_t D[2] = { { .f = { 2.0f, 3.0f } },

                 { .f = { 4.0f, 5.0f } } };

  const vec_t SC = { .f = { 1.0f, 1.0f } };

  Butterfly_3 (&D[0].v, SC.v);

  _m_femms ();

  if (D[1].f[0] != -2.0f || D[1].f[1] != -2.0f)

    abort ();

}