util: Allow drivers to garbage collect fetch_rgba functions and do so (-40kb binary)
Trying to reduce the i965_dri.so size regression in !6297 (merged), here's a 40kb reduction in format unpack code in the common case.
Trying to reduce the i965_dri.so size regression in !6297 (merged), here's a 40kb reduction in format unpack code in the common case.