gcc/testsuite/gcc.target/i386/recip-sqrtf.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ffast-math -msse -mfpmath=sse -mrecip" } */
   3
   4 extern float sqrtf (float);
   5
   6 float t1(float a, float b)
   7 {
   8   return a/sqrtf(b);
   9 }
  10
  11 float t2(float a, float b)
  12 {
  13   return sqrtf(a/b);
  14 }
  15
  16 float t3(float a)
  17 {
  18   return sqrtf(a);
  19 }
  20
  21 /* { dg-final { scan-assembler-times "rsqrtss" 3 } } */