On Mon, Aug 3, 2015 at 5:22 PM, Jason Ekstrand <ja...@jlekstrand.net> wrote:
> The analysis code was already there and running, we just weren't doing
> anything with the result of it yet.
> ---
> src/mesa/drivers/dri/i965/brw_vec4_nir.cpp | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
> b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
> index b13465b..27f23d0 100644
> --- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
> +++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
> @@ -1292,6 +1292,19 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
> default:
> unreachable("Unimplemented ALU operation");
> }
> +
> + /* If we need to do a boolean resolve, replace the result with -(x & 1)
> + * to sign extend the low bit to 0/~0
> + */
> + if (devinfo->gen <= 5 &&
> + (instr->instr.pass_flags & BRW_NIR_BOOLEAN_MASK) ==
> BRW_NIR_BOOLEAN_NEEDS_RESOLVE) {
Line wrap.
> + dst_reg masked = dst_reg(this, glsl_type::int_type);
> + masked.writemask = dst.writemask;
> + emit(AND(masked, src_reg(dst), src_reg(1)));
> + src_reg masked_neg = src_reg(masked);
> + masked_neg.negate = true;
> + emit(MOV(retype(dst, BRW_REGISTER_TYPE_D), masked_neg));
> + }
> }
>
> void
> --
> 2.4.3
>
> _______________________________________________
> mesa-dev mailing list
> mesa-dev@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
