gcc-4_9/gcc/testsuite/gcc.target/mips/rsqrt-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "isa=4 -mhard-float" } */
   3 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
   4 /* { dg-final { scan-assembler-not "\trsqrt.d\t" } } */
   5 /* { dg-final { scan-assembler-not "\trsqrt.s\t" } } */
   6
   7 extern double sqrt(double);
   8 extern float sqrtf(float);
   9
  10 double foo(double x)
  11 {
  12   return 1.0/sqrt(x);
  13 }
  14
  15 double bar(double x)
  16 {
  17   return sqrt(1.0/x);
  18 }
  19
  20 float foof(float x)
  21 {
  22   return 1.0f/sqrtf(x);
  23 }
  24
  25 float barf(float x)
  26 {
  27   return sqrtf(1.0f/x);
  28 }