[Bug c/28921] vector of a typedef applies the vector to the inner most type instead of erroring/warning out that vector does not apply

["egallager at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=28921

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-07-25
                 CC|                            |egallager at gcc dot gnu.org
     Ever confirmed|0                           |1
      Known to fail|                            |8.0

--- Comment #3 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #0)
> Testcase:
> typedef char *cptr;
> 
> char *a;
> 
> __attribute__ ((vector_size(16))) cptr t;
> 
> int f(void)
> {
> 
> __attribute__ ((vector_size(16))) int t1 =
>    (__attribute__ ((vector_size(16))) int )t;
> }
> 
> We get an error about converting t to a vector int but t looks to me a
> vector of a char pointer.  This happens with both the C and C++ front-ends.

Confirmed.