[Bug tree-optimization/34223] missed optimization - complete unrolling pass before the vectorizer

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2007-11-25 12:50 -------
Related to PR18754 - but vectorizer folks say early complete unrolling defeats
the vectorizer.  So possibly a compromise is to do early complete unrolling
only
for nested loops.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org
  BugsThisDependsOn|                            |18754
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-11-25 12:50:00
               date|                            |
            Summary|missed optimization -       |missed optimization -
                   |complete unrolling pass     |complete unrolling pass
                   |before the vectorizer       |before the vectorizer


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34223