[Bug tree-optimization/22041] Reverse loop order for increased efficiency

[tkoenig at gcc dot gnu dot org]

------- Comment #4 from tkoenig at gcc dot gnu dot org  2006-05-28 14:10 -------
(In reply to comment #3)
> Dunno if tree loop reversal is already there, but Zdenek probably likes to know
> what bugs he is fixing...

Loop reversal doesn't occur yet.

gcc version 4.2.0 20060521 (experimental) gives us:

L4:
        movl    (%ecx), %eax
        addl    $1, %ebx
        addl    %edi, %ecx
        movl    %eax, (%edx)
        addl    %esi, %edx
        cmpl    16(%ebp), %ebx
        jne     L4


-- 

tkoenig at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2005-12-24 20:30:10         |2006-05-28 14:10:44
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22041