Yeah, I'd like to have 32-bit runs.
Incidentally, I'm much less convinced about the value of llvmpipe/lavapipe runs. It could have been a valuable baseline that everyone can have access to without requiring specific hardware, in the same way that swrast and softpipe used to be for OpenGL, but it's not. That's largely a consequence of its target being desktop applications like GNOME 3, Firefox, Chrome, and so on, and conformance largely being a non-goal.
I'm willing to humour Giovanni to see if we can make the tests pass on llvmpipe and provide something of value there, but if there are concerns about the number of configurations we're running, I'd much rather have radv-32 than llvmpipe-*.