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

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -mavx512bw" } */
   3 /* { dg-require-effective-target avx512bw } */
   4
   5 #define AVX512BW
   6 #include "avx512f-helper.h"
   7
   8 #define SIZE (AVX512F_LEN / 16)
   9 #include "avx512f-mask-type.h"
  10
  11 void
  12 CALC (short *r, short *s1, short *s2)
  13 {
  14   int i;
  15   for (i = 0; i < SIZE; i++)
  16     {
  17       int tmp = (int)s1[i] - (int)s2[i];
  18       if (tmp > 0x7FFF) tmp = 0x7FFF;
  19       if (tmp < (short)0x8000) tmp = (short)0x8000;
  20       r[i] = (short)tmp;
  21     }
  22 }
  23
  24 void
  25 TEST (void)
  26 {
  27   int i, sign;
  28   UNION_TYPE (AVX512F_LEN, i_w) res1, res2, res3, src1, src2;
  29   MASK_TYPE mask = MASK_VALUE;
  30   short res_ref[SIZE];
  31
  32   sign = -1;
  33   for (i = 0; i < SIZE; i++)
  34     {
  35       src1.a[i] = 2 + sign * 7 * i % 291;
  36       src2.a[i] = 3 + sign * 11 * (i % 377) * i;
  37       sign = sign * -1;
  38     }
  39   for (i = 0; i < SIZE; i++)
  40     res2.a[i] = DEFAULT_VALUE;
  41
  42   res1.x = INTRINSIC (_subs_epi16) (src1.x, src2.x);
  43   res2.x = INTRINSIC (_mask_subs_epi16) (res2.x, mask, src1.x, src2.x);
  44   res3.x = INTRINSIC (_maskz_subs_epi16) (mask, src1.x, src2.x);
  45
  46   CALC (res_ref, src1.a, src2.a);
  47
  48   if (UNION_CHECK (AVX512F_LEN, i_w) (res1, res_ref))
  49     abort ();
  50
  51   MASK_MERGE (i_w) (res_ref, mask, SIZE);
  52   if (UNION_CHECK (AVX512F_LEN, i_w) (res2, res_ref))
  53     abort ();
  54
  55   MASK_ZERO (i_w) (res_ref, mask, SIZE);
  56   if (UNION_CHECK (AVX512F_LEN, i_w) (res3, res_ref))
  57     abort ();
  58 }