Re: [PATCH v3 0/5] MR283: vkd3d-shader/dxil: Implement DX instruction StoreOutput.

[Giovanni Mascellani (＠giomasce)]

Giovanni Mascellani (@giomasce) commented about libs/vkd3d-shader/dxil.c:
> -
>    enum vkd3d_shader_opcode handler_idx, enum vkd3d_shader_opcode siv_handler_idx,
> -
>    struct vkd3d_shader_dst_param *params)
>
> +{
> - struct vkd3d_shader_instruction *ins;
> - struct vkd3d_shader_dst_param *param;
> - const struct signature_element *e;
> - unsigned int i;
> -
> - for (i = 0; i < s->element_count; ++i)
> - {
> -
>    e = &s->elements[i];
> -
> -
>    /* Do not check e->used_mask because in some cases it is zero for used elements.
> -
>     * TODO: scan ahead for used I/O elements. */
> -
> -
>    if (e->sysval_semantic != VKD3D_SHADER_SV_NONE && e->sysval_semantic != VKD3D_SHADER_SV_TARGET)

That's not really a question about the code, but rather about shaders: is there a specific reason why `SV_Target` is special here?