Re: [PATCH v3 0/1] MR381: vkd3d-shader/tpf: Convert some of the semantic names to system values names when in compatibility mode.

[Henri Verbeet (＠hverbeet)]

> +    /**
> +     *  Causes compiler to convert SM1-3 semantics to corresponding System Value semantics,
> +     *  when compiled for SM4+ targets.

It may be worth pointing out that this option applies to HLSL sources.
> +        "  --semantic-compat-map Enable semantic mapping compatibility mode to use SM4+ system values\n"
> +        "                        instead of SM1-3 style semantic names.\n"

Likewise.
> +    if (compat_options)
> +        add_compile_option(options, VKD3D_SHADER_COMPILE_OPTION_BACKWARD_COMPATIBILITY, compat_options);

I think this requires bumping MAX_COMPILE_OPTIONS. We're probably also starting to reach the point where it makes more sense to dynamically allocate the "compile_options" array though.