gcc/testsuite/gcc.target/i386/avx512f-floor-sfix-vec-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -ffast-math -ftree-vectorize -mavx512f" } */
   3 /* { dg-require-effective-target avx512f } */
   4 /* { dg-skip-if "no M_PI" { vxworks_kernel } } */
   5
   6 #include <math.h>
   7 #include "avx512f-check.h"
   8
   9 extern double floor (double);
  10
  11 #define NUM 64
  12
  13 static void
  14 __attribute__((__target__("fpmath=sse")))
  15 init_src (double *src)
  16 {
  17   int i, sign = 1;
  18   double f = rand ();
  19
  20   for (i = 0; i < NUM; i++)
  21     {
  22       src[i] = (i + 1) * f * M_PI * sign;
  23       if (i < (NUM / 2))
  24         {
  25           if ((i % 6) == 0)
  26             f = f * src[i];
  27         }
  28       else if (i == (NUM / 2))
  29         f = rand ();
  30       else if ((i % 6) == 0)
  31         f = 1 / (f * (i + 1) * src[i] * M_PI * sign);
  32       sign = -sign;
  33     }
  34 }
  35
  36 static void
  37 __attribute__((__target__("fpmath=387")))
  38 avx512f_test (void)
  39 {
  40   double a[NUM];
  41   int r[NUM];
  42   int i;
  43
  44   init_src (a);
  45
  46   for (i = 0; i < NUM; i++)
  47     r[i] = (int) floor (a[i]);
  48
  49   /* check results:  */
  50   for (i = 0; i < NUM; i++)
  51     if (r[i] != (int) floor (a[i]))
  52       abort();
  53 }