[Bug target/105181] Store and load with updating the pointer is not used as often as it should be on aarch64

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105181

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
            Summary|[optimization] gcc generate |Store and load with
                   |worse code than clang base  |updating the pointer is not
                   |on advanced simd            |used as often as it should
                   |                            |be on aarch64

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is just an induction variable selection issue. Gcc decides using one is
better than using 3 where the store and loads do the update too.
This is most likely a cost model issue as ivopts does have some support for
these kinds of instructions.