[Bug target/116010] [15 regression] vectorization regressions on arm and aarch64 since r15-491-gc290e6a0b7a9de

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116010

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Thiago Jung Bauermann from comment #3)
> Created attachment 58725 [details]
> mve-vabs.s generated by the test after commit c290e6a0b7a9.
> 
> (In reply to Andrew Pinski from comment #1)
> > So I think there are 2 different issues here.
> 
> If that is the case, then I can open a separate bugzilla so that there's one
> for each test failure.
>  
> > First gcc.target/arm/simd/mve-vabs.c now calls memcpy because of the
> > restrict instead of memmove. That should be a simple fix there.
> 
> In my setup I don't see memcpy being called. Instead of memmove, GCC is now
> generating the load and store instruction. E.g.:

Well that is an inlined version of memcpy. I was looking at what was done in
the tree dump to see the difference.