gcc/testsuite/gcc.target/aarch64/vrecpx.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O3 --save-temps" } */
   3
   4 #include <arm_neon.h>
   5 #include <math.h>
   6 #include <stdlib.h>
   7
   8 float32_t in_f[] =
   9 {2.0, 4.0, 8.0, 16.0, 1.0, 0.5, 0.25, 0.125};
  10 float32_t rec_f[] =
  11 {1.0, 0.5, 0.25, 0.125, 2.0, 4.0, 8.0, 16.0};
  12 float64_t in_d[] =
  13 {2.0, 4.0, 8.0, 16.0, 1.0, 0.5, 0.25, 0.125};
  14 float32_t rec_d[] =
  15 {1.0, 0.5, 0.25, 0.125, 2.0, 4.0, 8.0, 16.0};
  16
  17 int
  18 test_frecpx_float32_t (void)
  19 {
  20   int i = 0;
  21   int ret = 1;
  22   for (i = 0; i < 8; i++)
  23     ret &= fabs (vrecpxs_f32 (in_f[i]) - rec_f[i]) < 0.001;
  24
  25   return ret;
  26 }
  27
  28 /* { dg-final { scan-assembler "frecpx\\ts\[0-9\]+, s\[0-9\]+" } } */
  29
  30 int
  31 test_frecpx_float64_t (void)
  32 {
  33   int i = 0;
  34   int ret = 1;
  35   for (i = 0; i < 8; i++)
  36     ret &= fabs (vrecpxd_f64 (in_d[i]) - rec_d[i]) < 0.001;
  37
  38   return ret;
  39 }
  40
  41 /* { dg-final { scan-assembler "frecpx\\td\[0-9\]+, d\[0-9\]+" } } */
  42
  43 int
  44 main (int argc, char **argv)
  45 {
  46   if (!test_frecpx_float32_t ())
  47     abort ();
  48   if (!test_frecpx_float64_t ())
  49     abort ();
  50
  51   return 0;
  52 }
  53