gcc/testsuite/gcc.target/i386/avx512bw-vpsubsw-2.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -mavx512bw -DAVX512BW" } */
   3 /* { dg-require-effective-target avx512bw } */
   4
   5 #include "avx512f-helper.h"
   6
   7 #define SIZE (AVX512F_LEN / 16)
   8 #include "avx512f-mask-type.h"
   9
  10 CALC (short *r, short *s1, short *s2)
  11 {
  12   int i;
  13   for (i = 0; i < SIZE; i++)
  14     {
  15       int tmp = (int)s1[i] - (int)s2[i];
  16       if (tmp > 0x7FFF) tmp = 0x7FFF;
  17       if (tmp < (short)0x8000) tmp = (short)0x8000;
  18       r[i] = (short)tmp;
  19     }
  20 }
  21
  22 void
  23 TEST (void)
  24 {
  25   int i, sign;
  26   UNION_TYPE (AVX512F_LEN, i_w) res1, res2, res3, src1, src2;
  27   MASK_TYPE mask = MASK_VALUE;
  28   short res_ref[SIZE];
  29
  30   sign = -1;
  31   for (i = 0; i < SIZE; i++)
  32     {
  33       src1.a[i] = 2 + sign * 7 * i % 291;
  34       src2.a[i] = 3 + sign * 11 * (i % 377) * i;
  35       sign = sign * -1;
  36     }
  37   for (i = 0; i < SIZE; i++)
  38     res2.a[i] = DEFAULT_VALUE;
  39
  40   res1.x = INTRINSIC (_subs_epi16) (src1.x, src2.x);
  41   res2.x = INTRINSIC (_mask_subs_epi16) (res2.x, mask, src1.x, src2.x);
  42   res3.x = INTRINSIC (_maskz_subs_epi16) (mask, src1.x, src2.x);
  43
  44   CALC (res_ref, src1.a, src2.a);
  45
  46   if (UNION_CHECK (AVX512F_LEN, i_w) (res1, res_ref))
  47     abort ();
  48
  49   MASK_MERGE (i_w) (res_ref, mask, SIZE);
  50   if (UNION_CHECK (AVX512F_LEN, i_w) (res2, res_ref))
  51     abort ();
  52
  53   MASK_ZERO (i_w) (res_ref, mask, SIZE);
  54   if (UNION_CHECK (AVX512F_LEN, i_w) (res3, res_ref))
  55     abort ();
  56 }