gcc/testsuite/gcc.target/powerpc/recip-3.c

   1 /* { dg-do compile { target { { powerpc*-*-* } && { ! powerpc*-apple-darwin* } } } } */
   2 /* { dg-require-effective-target powerpc_fprs } */
   3 /* { dg-options "-O2 -mrecip -ffast-math -mdejagnu-cpu=power7" } */
   4 /* { dg-final { scan-assembler-times "xsrsqrtedp\|frsqrte\ " 1 } } */
   5 /* { dg-final { scan-assembler-times "xsmuldp\|fmul\ " 2 } } */
   6 /* { dg-final { scan-assembler-times "xsnmsub.dp\|fnmsub\ " 2 } } */
   7 /* { dg-final { scan-assembler-times "xsmadd.dp\|fmadd\ " 3 } } */
   8 /* { dg-final { scan-assembler-times "xsrsqrtesp\|frsqrtes" 1 } } */
   9 /* { dg-final { scan-assembler-times "xsmulsp\|fmuls" 2 } } */
  10 /* { dg-final { scan-assembler-times "xsmadd.sp\|fmadds" 1 } } */
  11 /* { dg-final { scan-assembler-times "xsnmsub.sp\|fnmsubs" 1 } } */
  12
  13 double
  14 rsqrt_d (double a)
  15 {
  16   return 1.0 / __builtin_sqrt (a);
  17 }
  18
  19 float
  20 rsqrt_f (float a)
  21 {
  22   return 1.0f / __builtin_sqrtf (a);
  23 }