gcc/testsuite/gcc.target/i386/sse4_1-floorf-sfix-vec.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -ffast-math -ftree-vectorize -msse4.1" } */
   3 /* { dg-require-effective-target sse4 } */
   4 /* { dg-skip-if "no M_PI" { vxworks_kernel } } */
   5
   6 #ifndef CHECK_H
   7 #define CHECK_H "sse4_1-check.h"
   8 #endif
   9
  10 #ifndef TEST
  11 #define TEST sse4_1_test
  12 #endif
  13
  14 #include CHECK_H
  15
  16 #define __NO_MATH_INLINES
  17 #include <math.h>
  18
  19 #define NUM 64
  20
  21 static void
  22 __attribute__((__target__("fpmath=sse")))
  23 init_src (float *src)
  24 {
  25   int i, sign = 1;
  26   float f = rand ();
  27
  28   for (i = 0; i < NUM; i++)
  29     {
  30       src[i] = (i + 1) * f * M_PI * sign;
  31       if (i < (NUM / 2))
  32         {
  33           if ((i % 6) == 0)
  34             f = f * src[i];
  35         }
  36       else if (i == (NUM / 2))
  37         f = rand ();
  38       else if ((i % 6) == 0)
  39         f = 1 / (f * (i + 1) * src[i] * M_PI * sign);
  40       sign = -sign;
  41     }
  42 }
  43
  44 static void
  45 __attribute__((__target__("fpmath=387")))
  46 TEST (void)
  47 {
  48   float a[NUM];
  49   int r[NUM];
  50   int i;
  51
  52   init_src (a);
  53
  54   for (i = 0; i < NUM; i++)
  55     r[i] = (int) __builtin_floorf (a[i]);
  56
  57   /* check results:  */
  58   for (i = 0; i < NUM; i++)
  59     if (r[i] != (int) __builtin_floorf (a[i]))
  60       abort();
  61 }