gcc/testsuite/gcc.target/i386/avx512dq-vreducepd-2.c

/* { dg-do run } */
/* { dg-options "-O2 -mavx512dq" } */
/* { dg-require-effective-target avx512dq } */

#define AVX512DQ
#include "avx512f-helper.h"

#define SIZE (AVX512F_LEN / 64)
#include "avx512f-mask-type.h"

#define IMM 0x23

void
CALC (double *s, double *r)
{
  int i;

  for (i = 0; i < SIZE; i++)
    {
      double tmp = (int) (4 * s[i]) / 4.0;
      r[i] = s[i] - tmp;
    }
}

void
TEST (void)
{
  UNION_TYPE (AVX512F_LEN, d) s, res1, res2, res3;
  MASK_TYPE mask = MASK_VALUE;
  double res_ref[SIZE];
  int i, sign = 1;

  for (i = 0; i < SIZE; i++)
    {
      s.a[i] = 123.456 * (i + 2000) * sign;
      res2.a[i] = DEFAULT_VALUE;
      sign = -sign;
    }

  res1.x = INTRINSIC (_reduce_pd) (s.x, IMM);
  res2.x = INTRINSIC (_mask_reduce_pd) (res2.x, mask, s.x, IMM);
  res3.x = INTRINSIC (_maskz_reduce_pd) (mask, s.x, IMM);

  CALC (s.a, res_ref);

  if (UNION_FP_CHECK (AVX512F_LEN, d) (res1, res_ref))
    abort ();

  MASK_MERGE (d) (res_ref, mask, SIZE);
  if (UNION_FP_CHECK (AVX512F_LEN, d) (res2, res_ref))
    abort ();

  MASK_ZERO (d) (res_ref, mask, SIZE);
  if (UNION_FP_CHECK (AVX512F_LEN, d) (res3, res_ref))
    abort ();
}