Re: [PATCH v6 0/10] MR458: vkd3d-shader/hlsl: Handle register(cX) reservations.

[Zebediah Figura (＠zfigura)]

> It may look ugly, but I could think of of a less ugly way :(.

Actually I think it looks pretty reasonable :-) I'm mildly surprised that the unallocated ones don't try to go back and fill in the gaps, but that does make our job easier.

The one thing I don't love is the name of var_has_buffer_offset_register_reservation(). I'd honestly be tempted to inline the condition. Or maybe replace the word "buffer" with "globals".

One other test that I'm tempted to add just to be safe:

```
float a : register(c2);
float b;

float4 main() : sv_target
{
    return a + b;
}
```