gcc/testsuite/gcc.target/i386/avx512f-vscalefss-2.c

   1 /* { dg-do run } */
   2 /* { dg-options "-mavx512f -O2" } */
   3 /* { dg-require-effective-target avx512f } */
   4
   5 #include <math.h>
   6 #include "avx512f-check.h"
   7
   8 #define SIZE (128 / 32)
   9
  10 static void
  11 compute_scalefss (float *s1, float *s2, float *r)
  12 {
  13   r[0] = s1[0] * (float) pow (2, floor (s2[0]));
  14   r[1] = s1[1];
  15   r[2] = s1[2];
  16   r[3] = s1[3];
  17 }
  18
  19 static void
  20 avx512f_test (void)
  21 {
  22   union128 res1, s1, s2;
  23   float res_ref[SIZE];
  24   int i;
  25
  26   for (i = 0; i < SIZE; i++)
  27     {
  28       s1.a[i] = 11.5 * (i + 1);
  29       s2.a[i] = 10.5 * (i + 1);
  30     }
  31
  32   res1.x = _mm_scalef_ss (s1.x, s2.x);
  33
  34   compute_scalefss (s1.a, s2.a, res_ref);
  35
  36   if (check_union128 (res1, res_ref))
  37     abort ();
  38 }