gcc/testsuite/gcc.target/i386/avx512bw-vpmaddubsw-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 #include <math.h>
   9 #include <limits.h>
  10 #include <float.h>
  11 #define SIZE (AVX512F_LEN / 16)
  12 #include "avx512f-mask-type.h"
  13
  14 void
  15 CALC (short *i1, short *i2, short *r)
  16 {
  17   unsigned char *ub1 = (unsigned char *) i1;
  18   char *sb2 = (char *) i2;
  19   short *sout = (short *) r;
  20   int t0;
  21   int i;
  22
  23   for (i = 0; i < SIZE; i++)
  24     {
  25       t0 = ((int) ub1[2 * i] * (int) sb2[2 * i] +
  26             (int) ub1[2 * i + 1] * (int) sb2[2 * i + 1]);
  27       if (t0 > (int) 0x7fff)
  28         sout[i] = 0x7fff;
  29       else if (t0 < (int) 0xffff8000)
  30         sout[i] = 0x8000;
  31       else
  32         sout[i] = (short) t0;
  33     }
  34 }
  35
  36 void
  37 TEST (void)
  38 {
  39   UNION_TYPE (AVX512F_LEN, i_w) s1, s2, res1, res2, res3;
  40   short res_ref[SIZE];
  41   MASK_TYPE mask = MASK_VALUE;
  42   int i;
  43   int fail = 0;
  44
  45   for (i = 0; i < SIZE; i++)
  46     {
  47       s1.a[i] = i * 17 + i;
  48       s2.a[i] = i * -17 + i * 2;
  49       res2.a[i] = DEFAULT_VALUE;
  50     }
  51
  52   res1.x = INTRINSIC (_maddubs_epi16) (s1.x, s2.x);
  53   res2.x = INTRINSIC (_mask_maddubs_epi16) (res2.x, mask, s1.x, s2.x);
  54   res3.x = INTRINSIC (_maskz_maddubs_epi16) (mask, s1.x, s2.x);
  55
  56   CALC(s1.a, s2.a, res_ref);
  57
  58   if (UNION_CHECK (AVX512F_LEN, i_w) (res1, res_ref))
  59     abort ();
  60
  61   MASK_MERGE (i_w) (res_ref, mask, SIZE);
  62   if (UNION_CHECK (AVX512F_LEN, i_w) (res2, res_ref))
  63     abort ();
  64
  65   MASK_ZERO (i_w) (res_ref, mask, SIZE);
  66   if (UNION_CHECK (AVX512F_LEN, i_w) (res3, res_ref))
  67     abort ();
  68 }