[Bug tree-optimization/18673] [4.0 Regression] Tree-PRE is O(N^4)

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-11-25 
14:32 -------
Confirmed.
60% of the time is in bitmap_value_replace_in_set
26% is in bitmap_bit_p

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-11-25 14:32:52
               date|                            |
            Summary|[4.0 Regression] PRE is     |[4.0 Regression] Tree-PRE is
                   |O(N^4)                      |O(N^4)
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18673