[Bug optimization/14562] [tree-ssa] Incorrect loop code caused by PRE

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-15 23:20 -------
The problem was caused by PRE not knowing that the two PHI's were in fact different so it was choosing 
the wrong one.
See <http://gcc.gnu.org/ml/gcc-bugs/2004-03/msg01821.html>.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
         AssignedTo|amacleod at redhat dot com  |dberlin at gcc dot gnu dot
                   |                            |org
            Summary|[tree-ssa] Incorrect loop   |[tree-ssa] Incorrect loop
                   |code caused by copyrename   |code caused by PRE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14562