[Bug tree-optimization/26944] [4.1/4.2 Regression] -ftree-ch generates worse code

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2006-03-30 16:25 -------
Note that this may be also PRE confusing SCEV in presence of loop headers. 
I.e. a sort of dup of PR26939.  Confirmed though.  A regression from 4.0.3,
which is also fine.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |26939
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
 GCC target triplet|i686-pc-linux-gnu           |
           Keywords|                            |missed-optimization
      Known to work|                            |4.0.3
   Last reconfirmed|0000-00-00 00:00:00         |2006-03-30 16:25:17
               date|                            |
            Summary|-ftree-ch generates worse   |[4.1/4.2 Regression] -ftree-
                   |code                        |ch generates worse code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26944