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 #include "avx512f-helper.h"
   8
   9 #define SIZE (128 / 32)
  10
  11 static void
  12 compute_scalefss (float *s1, float *s2, float *r)
  13 {
  14   r[0] = s1[0] * (float) pow (2, floor (s2[0]));
  15   r[1] = s1[1];
  16   r[2] = s1[2];
  17   r[3] = s1[3];
  18 }
  19
  20 static void
  21 avx512f_test (void)
  22 {
  23   union128 res1, s1, s2;
  24   float res_ref[SIZE];
  25   int i;
  26
  27   for (i = 0; i < SIZE; i++)
  28     {
  29       s1.a[i] = 11.5 * (i + 1);
  30       s2.a[i] = 10.5 * (i + 1);
  31     }
  32
  33   res1.x = _mm_scalef_ss (s1.x, s2.x);
  34
  35   compute_scalefss (s1.a, s2.a, res_ref);
  36
  37   if (check_union128 (res1, res_ref))
  38     abort ();
  39 }