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

   1 /* Verify that we generate single-precision square root reciprocal
   2    approximate (fsrra) in fast math mode on SH4A with FPU.  */
   3 /* { dg-do compile { target { has_fsrra } } }  */
   4 /* { dg-options "-O -ffast-math" } */
   5 /* { dg-final { scan-assembler "fsrra" } } */
   6
   7 #include <math.h>
   8
   9 float
  10 test (float f)
  11 {
  12   return 1 / sqrtf (f);
  13 }