- BuiltInSubgroupSize
- BuiltInSubgroupLocalInvocationId

Bug: b/118386749
Test: dEQP-VK.subgroups.*
Change-Id: Idf06213351f2ac27664cc6bee1b6b99575676843
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/29308
Presubmit-Ready: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Tested-by: Chris Forbes <chrisforbes@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>