gcc/testsuite/gcc.target/sh/sh4a-fprun.c

   1 /* Verify that fsca and fssra yield reasonable results.  */
   2 /* This test calls the sinf and cosf library functions for targets other
   3    than sh4a, but the VxWorks kernel doesn't have those functions.  */
   4 /* { dg-do run { target { "sh*-*-*" && { ! vxworks_kernel } } } } */
   5 /* { dg-options "-O -ffast-math" } */
   6
   7 #include <math.h>
   8 #include <stdlib.h>
   9
  10 float sqrt_arg = 4.0f, sqrt_res = 2.0f;
  11 float dg2rad_f;
  12 double dg2rad_d;
  13
  14 void check_f (float res, float expected) {
  15   if (res >= expected - 0.001f && res <= expected + 0.001f)
  16     return;
  17
  18   abort ();
  19 }
  20
  21 void check_d (double res, double expected) {
  22   if (res >= expected - 0.001 && res <= expected + 0.001)
  23     return;
  24
  25   abort ();
  26 }
  27
  28 int main() {
  29   check_f (sqrtf(sqrt_arg), sqrt_res);
  30   dg2rad_f = dg2rad_d = atan(1) / 45;
  31   check_f (sinf(90*dg2rad_f), 1);
  32   check_f (cosf(90*dg2rad_f), 0);
  33   check_d (sin(-90*dg2rad_d), -1);
  34   check_d (cos(180*dg2rad_d), -1);
  35   check_d (sin(-45*dg2rad_d) * cosf(135*dg2rad_f), 0.5);
  36   exit (0);
  37 }