Re: [PATCH 0/5] MR550: vkd3d-shader/ir: Validate SSA and TEMP usages.

[Henri Verbeet (＠hverbeet)]

> ```
> Subject: [PATCH 3/5] vkd3d-shader/ir: Check that TEMP registers have
>  consistent dimensions.
> ```

I'm not sure I completely understand what we're doing here. In principle VKD3DSPR_TEMP registers are vec4's and would get VSIR_DIMENSION_VEC4, at least before DXIL. Is the idea here that we want to allow (presumably mainly for DXIL) VSIR_DIMENSION_SCALAR temps, as long as we consistently access them that way?

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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/550#note_57088