celerity
Implement SYCL_KHR_WORK_ITEM_QUERIES
This adds support for the SYCL_KHR_WORK_ITEM_QUERIES extension, as per https://github.com/KhronosGroup/SYCL-Docs/pull/682.
Although SimSYCL is a library-only implementation, due to its single-threaded nature this can be implemented via thread locals that are set every time a kernel function context is scheduled in. The actual implementation is a bit more convoluted than I'd like, but it does provide decent error messages / developer experience.
You mean as it relates to threading by the user program? In any case, I see no problem with making them thread local, so I'll do that.
Since you're here (😛), in the new unit test introduced in this PR there's this. I adopted the whole test from here, but was surprised that it didn't actually fail when I expected it to. It looks to me like the original version never runs because the global range at dim 0 is 0, but I didn't yet check if there was just something I missed when adapting it.