flrp32 is also a 3-source instruction, but there is another pending
series that handles that for Gen4 and Gen5.
v2: Rebase on "intel/compiler: Don't have sepearate, per-Gen
nir_options"
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Ian Romanick
26391cceaa