gcc/testsuite/gcc.target/i386/avx512f-vrndscaless-2.c

/* { dg-do run } */
/* { dg-options "-mavx512f -O2" } */
/* { dg-require-effective-target avx512f } */

#define SIZE (128 / 32)

#include <math.h>
#include "avx512f-check.h"
#include "avx512f-mask-type.h"

static void
compute_rndscaless (float *s1, float *s2, float *r, int imm)
{
  int rc, m;
  rc = imm & 0xf;
  m = imm >> 4;

  switch (rc)
    {
    case _MM_FROUND_FLOOR:
      r[0] = __builtin_floorf (s2[0] * pow (2, m)) / pow (2, m);
      break;
    case _MM_FROUND_CEIL:
      r[0] = __builtin_ceilf (s2[0] * pow (2, m)) / pow (2, m);
      break;
    default:
      abort ();
      break;
    }

  r[1] = s1[1];
  r[2] = s1[2];
  r[3] = s1[3];
}

static void
avx512f_test (void)
{
  int i, imm;
  union128 s1, s2, res1, res2, res3, res4, res5, res6;
  float res_ref[SIZE];
  
  MASK_TYPE mask = MASK_VALUE;

  imm = _MM_FROUND_FLOOR | (7 << 4);
  
  s1.x = _mm_set_ps (4.05084, -1.23162, 2.00231, -6.22103);
  s2.x = _mm_set_ps (-4.19319, -3.53222, 7.33527, 5.57655);
 
  for(i = 0; i < SIZE; i++)
    {
      res2.a[i] = DEFAULT_VALUE;
      res5.a[i] = DEFAULT_VALUE;
    }

  res1.x = _mm_roundscale_ss (s1.x, s2.x, imm);
  res2.x = _mm_mask_roundscale_ss (res2.x, mask, s1.x, s2.x, imm);
  res3.x = _mm_maskz_roundscale_ss (mask, s1.x, s2.x, imm);
  res4.x = _mm_roundscale_round_ss (s1.x, s2.x, imm, _MM_FROUND_NO_EXC);
  res5.x = _mm_mask_roundscale_round_ss (res5.x, mask, s1.x, s2.x, imm, _MM_FROUND_NO_EXC);
  res6.x = _mm_maskz_roundscale_round_ss (mask, s1.x, s2.x, imm, _MM_FROUND_NO_EXC);

  compute_rndscaless (s1.a, s2.a, res_ref, imm);

  if (check_union128 (res1, res_ref))
    abort ();

  MASK_MERGE () (res_ref, mask, 1);
  if (check_union128 (res2, res_ref))
    abort ();
  
  MASK_ZERO () (res_ref, mask, 1);
  if (check_union128 (res3, res_ref))
    abort ();

  compute_rndscaless (s1.a, s2.a, res_ref, imm);

  if (check_union128 (res4, res_ref))
    abort ();

  MASK_MERGE () (res_ref, mask, 1);
  if (check_union128 (res5, res_ref))
    abort ();
  
  MASK_ZERO () (res_ref, mask, 1);
  if (check_union128 (res6, res_ref))
    abort ();
}