[Mesa-dev] [Bug 105320] Wrong results produced by vkCmdCopyBuffer() from storage texel buffer

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105320

--- Comment #1 from Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl> ---
Hi,

On which GPUs did you have this issue?

On Vega this suffers from a bug with buffers sizes, where if you use a buffer
view with constant index, the HW interprets the number of elements as the
number of bytes. As the example allocates buffers of size 4, and hence 1
elements, this means that all the accesses in the shader fail.

This is a radv/LLVM bug and we're working on fixing it.
https://patchwork.freedesktop.org/patch/205590/ was a proposed fix, but causes
other regressions.

However it seems to work for me on Polaris. I'd appreciate if you can tell
whether you've seen the issue for pre-vega as well and that I hence need to
look deeper there.

Thanks,
Bas

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