On Wed, Oct 04, 2023 at 01:08:15PM +0200, Tobias Burnus wrote:
> I got confused myself when reading
>
> https://gcc.gnu.org/onlinedocs/libgomp/OpenMP-Context-Selectors.html
>
> Especially with regards to other platforms like PowerPC.
>
> It turned out that the list is complete, kind of. For 'arch' and 'isa'
> those are the only ones - if we want to have more, it has to be
> implemented (→ cf. PR105640).
>
> For 'kind': The host compiler always matches 'kind=host'; this also
> applies to AMD GCN and Nvidia PTX - when compiled as stand-alone
> compiler. Those two also match 'kind=gpu' (both as stand-alone
> compiler(*) and for offloading).
>
> The attached documentation patch attempts to clarify this for both users
> – and for implementers, for the latter, there is also a comment in the
> .texi with more details.
>
> Comments, suggestions, remarks?
>
> Tobias
>
> (*) This could be changed by checking for "#ifndef ACCEL_COMPILER" in
> gcc/config/{gcn/nvptx}/ but that does not seem to be worthwhile.
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> libgomp.texi: Clarify that no other OpenMP context selectors are implemented
>
> libgomp/ChangeLog:
>
> * libgomp.texi (OpenMP Context Selectors): Clarify 'kind' trait
> and that other target archs have no 'arch'/'isa' traits implemented.
LGTM.
Jakub
