gcc/testsuite/gcc.target/powerpc/ppc-pow.c

   1 /* { dg-do compile } */
   2 /* { dg-skip-if "" { powerpc*-*-darwin* } } */
   3 /* Check for VSX here, even though we don't use VSX to eliminate SPE, PAIRED
   4    and other ppc floating point varients.  However, we need to also eliminate
   5    Darwin, since it doesn't like -mcpu=power6.  */
   6 /* { dg-require-effective-target powerpc_vsx_ok } */
   7 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power6" } } */
   8 /* { dg-options "-O2 -ffast-math -mcpu=power6 -mno-vsx -mno-altivec" } */
   9 /* { dg-final { scan-assembler-times "fsqrt" 3 } } */
  10 /* { dg-final { scan-assembler-times "fmul" 1 } } */
  11 /* { dg-final { scan-assembler-times "bl?\[\\. \]+pow" 1 } } */
  12 /* { dg-final { scan-assembler-times "bl?\[\\. \]+sqrt" 1 } } */
  13
  14 double
  15 do_pow_0_75_default (double a)
  16 {
  17   return __builtin_pow (a, 0.75);       /* should generate 2 fsqrts */
  18 }
  19
  20 double
  21 do_pow_0_5_default (double a)
  22 {
  23   return __builtin_pow (a, 0.5);        /* should generate fsqrt */
  24 }
  25
  26 #pragma GCC target "no-powerpc-gpopt,no-powerpc-gfxopt"
  27
  28 double
  29 do_pow_0_75_nosqrt (double a)
  30 {
  31   return __builtin_pow (a, 0.75);       /* should call pow */
  32 }
  33
  34 double
  35 do_pow_0_5_nosqrt (double a)
  36 {
  37   return __builtin_pow (a, 0.5);        /* should call sqrt */
  38 }
  39
  40 #pragma GCC reset_options