intel/eu: Fix broadcast instruction for 64-bit values on little-core

We're not using broadcast for any 32-bit types right now since we mostly
use it for emit_uniformize on 32-bit buffer indices.  However, SPIR-V
subgroups are going to need it for 64-bit so let's make it work.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
1 file changed