[Bug target/29953] [SH-4] Perfomance regression in loops. cmp/eq used instead of dt

[chrbr at gcc dot gnu dot org]

------- Comment #6 from chrbr at gcc dot gnu dot org  2007-05-15 10:30 -------

I dropped the 4.1 and implemented a -finvert-loops option on the trunk.

This option allows a basic induction variable to be decremented instead of
incremented to support exit testing against 0.

I'm validating a patch on intel and sh. 


-- 

chrbr at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |chrbr at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2007-04-03 16:34:17         |2007-05-15 10:30:36
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29953