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#include <smmintrin.h>

#include <math.h>

#define NUM 64

static void

init_round (FP_T *src)

{

  int i, sign = 1;

  FP_T f = rand ();

  for (i = 0; i < NUM; i++)

    {

      src[i] = (i + 1)* f * M_PI * sign;

      if (i < (NUM / 2))

        {

          if ((i % 6) == 0)

            f = f * src[i];

        }

      else if (i == (NUM / 2))

        f = rand ();

      else if ((i % 6) == 0)

        f = 1 / (f * (i + 1) * src[i] * M_PI *sign);

      sign = -sign;

    }

}

static FP_T

do_round (FP_T f, int type)

{

  short saved_cw, new_cw, clr_mask;

  FP_T ret;

  if ((type & 4))

    {

      type = 0;

      clr_mask = 0xFFFF;

    }

  else

    {

      type = 0x003F | ((type & 3) << 10);

      clr_mask = ~0x0C3F;

    }

  __asm__ ("fld" ASM_SUFFIX " %0" : : "m" (*&f));

  __asm__ ("fstcw %0" : "=m" (*&saved_cw));

  new_cw = saved_cw & clr_mask;

  new_cw |= type;

  __asm__ ("fldcw %0" : : "m" (*&new_cw));

  __asm__ ("frndint\n"

           "fstp" ASM_SUFFIX " %0\n" : "=m" (*&ret));

  __asm__ ("fldcw %0" : : "m" (*&saved_cw));

  return ret;

}

static void

sse4_1_test (void)

{

  int i;

  FP_T f;

  union

    {

      VEC_T x[NUM / LOOP_INCREMENT];

      FP_T f[NUM];

    } dst, src;

  init_round (src.f);

  for (i = 0; i < NUM / LOOP_INCREMENT; i++)

    dst.x[i] =  ROUND_INTRIN (src.x[i], ROUND_MODE);

  for (i = 0; i < NUM; i += CHECK_LOOP_INCREMENT)

    {

      f = do_round (src.f[i], CHECK_ROUND_MODE);

     if (f != dst.f[i])

       abort ();

    }

  if (_MM_FROUND_TO_NEAREST_INT != 0x00

      || _MM_FROUND_TO_NEG_INF != 0x01

      || _MM_FROUND_TO_POS_INF != 0x02

      || _MM_FROUND_TO_ZERO != 0x03

      || _MM_FROUND_CUR_DIRECTION != 0x04

      || _MM_FROUND_RAISE_EXC != 0x00

      || _MM_FROUND_NO_EXC != 0x08

      || _MM_FROUND_NINT != 0x00

      || _MM_FROUND_FLOOR != 0x01

      || _MM_FROUND_CEIL != 0x02

      || _MM_FROUND_TRUNC != 0x03

      || _MM_FROUND_RINT != 0x04

      || _MM_FROUND_NEARBYINT != 0x0C)

    abort ();

}