[Bug tree-optimization/38884] missed FRE with __real and __imag

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38884

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2011-10-05
     Ever Confirmed|0                           |1

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-05 
12:47:00 UTC ---
Re-confirmed for the 2nd function.  The first one is optimized.

struct s { _Complex float i; };
void g(struct s *);
float a1 (float dd)
{
  struct s sv;
  sv.i = dd;
  float d = __real__ sv.i;
  g(&sv);
  return d;
}