Re: [PATCH v17 0/5] MR564: vkd3d-shader/ir: Transform clip/cull signature elements into an array.

[Zebediah Figura (＠zfigura)]

On Wed Feb 21 22:46:01 2024 +0000, Zebediah Figura wrote:
> That said, though, the write mask logic here assumes that all
> instructions consuming clip/cull behave like mov with respect to write
> mask. Is that actually valid? E.g. for a somewhat pathological example,
> the coords argument of SAMPLE doesn't.
> If the point is to avoid writing any out of bounds accesses (i.e.
> component_idx >= signature->s[element_idx].register_count), should we
> instead just replace such out of bounds accesses with zero or something?

I guess explicitly handling every instruction type works too, but it seems a bit fragile. Is there a problem with just clamping out of bounds accesses?