[Patch] gcn/t-omp-device: Add 'amdgcn' as 'arch' [PR105602]

[Tobias Burnus]

Hi Jakub, hi Andrew,

On 17.05.22 10:01, Jakub Jelinek wrote:
> But the above patch only implements it partially.
> What is in omp-device-properties-* is for the sake of the host compiler,
> [...]
> You need to also change gcc/config/gcn/gcn.cc (gcn_omp_device_kind_arch_isa)
> case omp_device_arch: handling so that it accepts both "gcn" and "amdgcn"
> equally.

Done with the attached patch, which I intent to commit after the lunch break,
unless there are further comments.

* * *

Additionally, I am considering to document the permitted values → second patch.
The idea is to later add more device-specific information, separately for gcn
and nvptx like simd/teams/threads handling or similar information (additional
envvar, where it makes sense etc.), which is currently spread over several
slides, wikipages, mouth-to-mouth information etc.

Thoughts regarding the second patch?

Tobias
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