[Bug tree-optimization/23835] [4.1 Regression] case where gcc 4.1.0 -O3 compile takes two times longer than gcc 3.4.3 and 4.0.0

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-09-14 
00:35 -------
Hmm, in 4.0.0, we take a nice time at -O3.
may_alias took only:
 tree alias analysis   :   0.28 ( 3%) usr   0.01 ( 1%) sys   0.21 ( 2%) wall
Total time:
 TOTAL                 :   8.55             1.04             9.75


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|case where gcc 4.1.0 -O3    |[4.1 Regression] case where
                   |compile takes two times     |gcc 4.1.0 -O3 compile takes
                   |longer than gcc 3.4.3       |two times longer than gcc
                   |                            |3.4.3 and 4.0.0
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23835