1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-optimized" } */
       3  
       4  float g(float a, float b)
       5  {
       6    return ~(int)a - ~(int)b;
       7  }
       8  
       9  /* { dg-final { scan-tree-dump-not "~" "optimized" } } */