[Bug tree-optimization/80292] __m64 type-attribute may_alias ignored

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80292

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |jakub at gcc dot gnu.org
         Resolution|---                         |INVALID

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
No, that looks like misunderstanding what may_alias attribute is.
It only does something for accesses through pointers, if the pointed type has
may_alias attribute.
That is not what you have in your test, the only pointers in there are long *
and the pointed type does not have may_alias attribute, so it works as if there
were no may_alias attributes at all.