1  /* { dg-do compile } */
       2  /* { dg-require-effective-target c99_runtime } */
       3  /* { dg-options "-O2 -ffast-math -fdump-tree-forwprop-details" } */
       4  
       5  #include <math.h>
       6  
       7  float f1(float x)
       8  {
       9    float t1 = fabsf (x);
      10    float t2 = t1 / x; 
      11    return t2;
      12  }
      13   
      14  /* { dg-final { scan-tree-dump "__builtin_copysignf" "forwprop1" } } */