gcc/testsuite/gcc.target/i386/avx512f-vrsqrt14ss-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 static void
  10 compute_vrsqrt14ss (float *s1, float *s2, float *r)
  11 {
  12   r[0] = 1.0 / sqrt (s2[0]);
  13   r[1] = s1[1];
  14   r[2] = s1[2];
  15   r[3] = s1[3];
  16 }
  17
  18 static void
  19 avx512f_test (void)
  20 {
  21   union128 s1, s2, res1, res2, res3;
  22   float res_ref[4];
  23
  24   s1.x = _mm_set_ps (-24.43, 68.346, -43.35, 546.46);
  25   s2.x = _mm_set_ps (222.222, 333.333, 444.444, 4.0);
  26   res2.a[0] = DEFAULT_VALUE;
  27
  28   res1.x = _mm_rsqrt14_ss (s1.x, s2.x);
  29
  30   compute_vrsqrt14ss (s1.a, s2.a, res_ref);
  31
  32   if (check_fp_union128 (res1, res_ref))
  33     abort ();
  34 }