gcc/testsuite/gcc.dg/pow-sqrt-synth-1.c

   1 /* { dg-do compile { target sqrt_insn } } */
   2 /* { dg-options "-fdump-tree-sincos -Ofast --param max-pow-sqrt-depth=8" } */
   3 /* { dg-additional-options "-mfloat-abi=softfp -mfpu=neon-vfpv4" { target arm*-*-* } } */
   4
   5 double
   6 foo (double a)
   7 {
   8   return __builtin_pow (a, -5.875);
   9 }
  10
  11 double
  12 foof (double a)
  13 {
  14   return __builtin_pow (a, 0.75f);
  15 }
  16
  17 double
  18 bar (double a)
  19 {
  20   return __builtin_pow (a, 1.0 + 0.00390625);
  21 }
  22
  23 double
  24 baz (double a)
  25 {
  26   return __builtin_pow (a, -1.25) + __builtin_pow (a, 5.75) - __builtin_pow (a, 3.375);
  27 }
  28
  29 #define N 256
  30 void
  31 vecfoo (double *a)
  32 {
  33   for (int i = 0; i < N; i++)
  34     a[i] = __builtin_pow (a[i], 1.25);
  35 }
  36
  37 /* { dg-final { scan-tree-dump-times "synthesizing" 7 "sincos" } } */