[Bug tree-optimization/36792] [4.4 Regression] Revision 137631 causes many failures

[rguenth at gcc dot gnu dot org]

------- Comment #14 from rguenth at gcc dot gnu dot org  2008-12-10 20:56 -------
Which is not vectorized because PRE doesn't move the invariant

  D.2067_11 = a_9(D) == b_10(D);

out of the loop.  If you make LIM do it (--param lim-expensive=1) the loop
is vectorized again.

I have a patch.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|REOPENED                    |ASSIGNED
   Last reconfirmed|2008-07-10 14:59:59         |2008-12-10 20:56:16
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36792