Remove the unused OMP_CLAUSE_DEVICE_RESIDENT

[Jakub Jelinek]

On Tue, May 31, 2016 at 05:45:25PM +0200, Thomas Schwinge wrote:
> While working on something else, I came across the following.  Cesar, can
> you please verify that this is really dead code in the Fortran front end,
> which currently is the only producer of OMP_CLAUSE_DEVICE_RESIDENT?
> 
> Also, I noticed that the Fortran front end never creates OMP_CLAUSE_MAP
> with GOMP_MAP_LINK or GOMP_MAP_DEVICE_RESIDENT -- how is OpenACC declare
> working at all?  Cesar, if this is not a simple question to answer,
> please file a GCC PR, for somebody to have a look later.
> 
> Jakub, if the following patch is OK, should I also clean it up on release
> branches as applicable, or just on trunk?

It is ok for trunk, not worth backporting to any branches.
But your ChangeLog doesn't cover the changes you've actually done.

>     Remove the unused OMP_CLAUSE_DEVICE_RESIDENT
>     
>     	gcc/
>     	* tree-core.h (enum omp_clause_code): Remove
>     	OMP_CLAUSE_DEVICE_RESIDENT.  Adjust all users.

	Jakub