It seemed to be a typo; the comment says that it
tries to fetch local size for a subgroup count with
above max WG size, but it just used the previous
subgroup count.
The test on purpose sets a SG count to be a larger
number than the max work-items in the work group.
Given the minimum SG size is 1 WI, it means that there
can be a maximum of maximum work-group size of SGs (of
1 WI of size). Thus, if we request a number of SGs that
exceeds the local size, the query should fail as expected.
8bb89b165c