[Mesa-dev] [PATCH 5/5] i965/fs: Don't do redundant RA setup on IVB+

[Matt Turner]

On Fri, Jul 31, 2015 at 10:05 AM, Jason Ekstrand <jason at jlekstrand.net> wrote:
> ---
>  src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp b/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
> index 211f70e..512da22 100644
> --- a/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
> +++ b/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
> @@ -79,6 +79,15 @@ brw_alloc_reg_set(struct brw_compiler *compiler, int dispatch_width)
>     int base_reg_count = BRW_MAX_GRF;
>     int index = (dispatch_width / 8) - 1;
>
> +   if (dispatch_width > 8 && devinfo->gen >= 7) {
> +      /* For IVB+, we don't need the PLN hacks or the 2-reg alignment in

s/2-reg /even-/

(to match the PRM)