[PATCH] D68893: AMDGPU: Split flat offsets that don't fit in DAG

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D68893#1715404 <https://reviews.llvm.org/D68893#1715404>, @rampitec wrote:

> I.e. ideally we want:
>
> load p
>  load p+128
>  load p+256
>  ...
>  load p+2048-128
>  p1 = p + 2048
>  load p1
>  load p1 + 128
>  load p1 + 256
>  ...
>
> etc for a 128 byte stride.


This would be better, but picking the base constant to use is more difficult. I think this is a next step beyond this patch. I'm not sure splitting this in the IR will work out, as the DAG will try to fold the adds of constants pack together


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