Re: [PATCH v3 0/3] MR487: vkd3d-shader/hlsl: Fix infinite loops when applying copy-prop to swizzles, version 3.

[Giovanni Mascellani (＠giomasce)]

Giovanni Mascellani (@giomasce) commented about libs/vkd3d-shader/hlsl_codegen.c:
> - cannot easily vectorize the stores @3 and @6.
>
> */
>
> -enum copy_propagation_value_state
> -{
> - VALUE_STATE_NOT_WRITTEN = 0,
> - VALUE_STATE_STATICALLY_WRITTEN,
> - VALUE_STATE_DYNAMICALLY_WRITTEN,
>
> -};
> -
>
> struct copy_propagation_value
>  {
> - enum copy_propagation_value_state state;
> - unsigned int timestamp;
> - bool statically_written;

It seems as if `statically_written` could be assumed to be `!!node`, so you have one fewer consistency rule to enforce.