Closes #6758

Related to this PR, I noticed that in slang-capabilities.capdef that there is the definition alias cooperative_vector = _sm_6_8 | cpp | _cuda_sm_9_0 | spvCooperativeVectorNV;

This definition is likely supposed to use _sm_6_9 as per coop-vector requiring shader model 6.9.

This would likely cause issues/confusion if not updated for users (since sm_6_8 does not have support for coop-vectors).

Related to this PR, I noticed that in slang-capabilities.capdef that there is the definition alias cooperative_vector = _sm_6_8 | cpp | _cuda_sm_9_0 | spvCooperativeVectorNV;

This definition is likely supposed to use _sm_6_9 as per coop-vector requiring shader model 6.9.

This would likely cause issues/confusion if not updated for users (since sm_6_8 does not have support for coop-vectors).

Thank you very much.
That is correct and I fix it at the latest change.

Currently the following tests are failing:

FAILED test: 'tests/cooperative-vector/load-store-groupshared.slang.1 (dx12)'
FAILED test: 'tests/cooperative-vector/load-store-rwbyteaddressbuffer.slang.1 (dx12)'

I am not sure how to load from groupshared with the long-vector syntax.

/format

🌈 Formatted, please merge the changes from this PR