94c1ff415b
When we use the scalar ALU we will start inserting moves with different API-level semantics from readInvocation() or readFirstInvocation(). We need to distinguish between these moves and lowered readInvocation() moves, to avoid unnecessarily keeping helper invocations alive when inserting (eq). Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22075>