[Freedreno] [Mesa-dev] [RFC 1/4] nir: Add a new intrinsic 'load_image_stride'

[Eric Anholt]

Eduardo Lima Mitev <elima at igalia.com> writes:

> This is an internal intrinsic intended to be injected by a
> (freedreno-specific) 'lower_sampler_io' pass that will be introduced
> later in this series; and consumed by ir3_compiler_nir.
>
> The intrinsic will load in SSA values for various constants
> for images (image_dims), namely the format's bytes-per-pixel,
> y-stride and z-stride; for which the backend compiler will emit
> the corresponding uniforms.
>
> const_index[0] is the image index, and const_index[1] is the index
> into image_dims' register file for a given image: 0 for bpp, 1 to
> y-stride and 2 for z-stride.

Can you move this documentation of the meaning of the intrinsic into a
comment in the file?
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