Re: [PATCH 0/1] MR774: tests: Check that side effects do not happen after discard.

[Conor McCarthy (＠cmccarthy)]

Conor McCarthy (@cmccarthy) commented about tests/hlsl/discard.shader_test:
> -
>    y[uint2(0, 0)] += 1;
> - if (x.x == 9.0f)
> -
>    discard;
> - if (pos.x == 0.5 && pos.y == 0.5)
> -
>    y[uint2(1, 0)] += 1;
> - return x;
>
> +}
> -
>
> +[test]
> +uniform 0 float4 1 2 3 4
> +todo(glsl) draw quad
> +probe all rgba (1, 2, 3, 4)
> +if(sm<6) probe uav 1 (0, 0) r (1.0)
> +if(sm<6) probe uav 1 (1, 0) r (1.0)
> +if(sm>=6) probe uav 0 (0, 0) r (1.0)
> +if(sm>=6) probe uav 0 (1, 0) r (1.0)

Why use two UAVs and separate probes for sm<6 and sm>=6? Would `RWTexture2D<float> y : register(u1)` take care of it more simply?