radv: adjust loop unrolling heuristics for int64

In particular, increase the cost of 64-bit integer division.

Fixes huge shaders with dEQP-VK.spirv_assembly.type.scalar.i64.mod_geom
, with ACO used for GS this creates shaders requiring a branch with
>32767 dword offset.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2 files changed