[Bug tree-optimization/23335] [4.0/4.1 Regression] copyrename does not coalesce different type variables (useless type conversion)

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-08-11 18:47 -------
Here is a simple example:
int f(void);
long h(int screen)
{
  int mult = 1;
  if (screen)
    return 0;
  mult = f();
  return mult;
}

This is a regression from 3.4.0 were we produced one less set RTL.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |missed-optimization, TREE
   Last reconfirmed|0000-00-00 00:00:00         |2005-08-11 18:47:44
               date|                            |
            Summary|copyrename does not coalesce|[4.0/4.1 Regression]
                   |same type varibles (useless |copyrename does not coalesce
                   |type conversion)            |different type variables
                   |                            |(useless type conversion)
   Target Milestone|---                         |4.0.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23335