[Bug tree-optimization/65068] Improve rewriting for address type induction variables in IVOPT

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65068

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2015-05-15 00:00:00         |2016-8-23
      Known to fail|                            |6.1.0

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Oh this is interesting.  Tunning for thunderx or cortex-a53, we get the
expected results.

.L4:
        ldr     w1, [x0]
        add     w1, w1, 1
        str     w1, [x0], 4
        cmp     x0, x2
        bne     .L4


:)