[PATCH] Add OpenACC 2.6 `acc_get_property' support

[Andrew Stubbs]

On 16/12/2019 23:00, Thomas Schwinge wrote:
>> There is no AMD GCN support yet. This will be added later on.
> 
> ACK, just to note that there now is a 'libgomp/plugin/plugin-gcn.c' that
> at least needs to get a stub implementation (can mostly copy from
> 'libgomp/plugin/plugin-hsa.c'?) as otherwise the build will fail.

The code exists on the OG9 branch. It was omitted from the trunk 
submission because the other half of the properties support wasn't there 
yet.

Andrew