[PATCH vkd3d 2/2] vkd3d-shader: Store a validity flag in struct vkd3d_sm4_data.

[Henri Verbeet]

On Wed, 30 Jun 2021 at 05:11, Conor McCarthy <cmccarthy at codeweavers.com> wrote:
> @@ -571,6 +572,8 @@ static void VKD3D_PRINTF_FUNC(3, 4) shader_read_error(struct vkd3d_sm4_data *pri
>      va_start(args, format);
>      vkd3d_shader_verror(priv->message_context, NULL, error, format, args);
>      va_end(args);
> +
> +    priv->valid = false;
>  }
[...]
> @@ -1949,6 +1953,7 @@ void shader_sm4_read_instruction(void *data, const DWORD **ptr, struct vkd3d_sha
>      if (opcode_info->read_opcode_func)
>      {
>          opcode_info->read_opcode_func(ins, opcode, opcode_token, p, len, priv);
> +        return priv->valid;
>      }
I think that's a bit too coarse. In particular, if an error is not
fatal (like for example the invalid register range one), it's often
useful to continue parsing and also report subsequent errors and
warnings.