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

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -mavx512dq" } */
   3 /* { dg-require-effective-target avx512dq } */
   4
   5 #define AVX512DQ
   6 #include "avx512f-helper.h"
   7
   8 #define SIZE (AVX512F_LEN / 64)
   9 #include "avx512f-mask-type.h"
  10
  11 #define IMM 0x23
  12
  13 void
  14 CALC (double *s, double *r)
  15 {
  16   int i;
  17
  18   for (i = 0; i < SIZE; i++)
  19     {
  20       double tmp = (int) (4 * s[i]) / 4.0;
  21       r[i] = s[i] - tmp;
  22     }
  23 }
  24
  25 void
  26 TEST (void)
  27 {
  28   UNION_TYPE (AVX512F_LEN, d) s, res1, res2, res3;
  29   MASK_TYPE mask = MASK_VALUE;
  30   double res_ref[SIZE];
  31   int i, sign = 1;
  32
  33   for (i = 0; i < SIZE; i++)
  34     {
  35       s.a[i] = 123.456 * (i + 2000) * sign;
  36       res2.a[i] = DEFAULT_VALUE;
  37       sign = -sign;
  38     }
  39
  40   res1.x = INTRINSIC (_reduce_pd) (s.x, IMM);
  41   res2.x = INTRINSIC (_mask_reduce_pd) (res2.x, mask, s.x, IMM);
  42   res3.x = INTRINSIC (_maskz_reduce_pd) (mask, s.x, IMM);
  43
  44   CALC (s.a, res_ref);
  45
  46   if (UNION_FP_CHECK (AVX512F_LEN, d) (res1, res_ref))
  47     abort ();
  48
  49   MASK_MERGE (d) (res_ref, mask, SIZE);
  50   if (UNION_FP_CHECK (AVX512F_LEN, d) (res2, res_ref))
  51     abort ();
  52
  53   MASK_ZERO (d) (res_ref, mask, SIZE);
  54   if (UNION_FP_CHECK (AVX512F_LEN, d) (res3, res_ref))
  55     abort ();
  56 }