[PATCH] D134780: [AMDGPU] Add MIMG NSA threshold configuration attribute

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

>> Out of ~20000 pipelines, ~2000 had higher VGPR usage with threshold 2 and ~1000 had lower VGPR usage.
>
> That's weird. I can't see why enabling NSA would consistently cause higher vgpr usage.

FYI I looked at one case where this happens and it was caused by GCNNSAReassign making strange (well, different) decisions. So now I need to try to understand what that pass does.


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  https://reviews.llvm.org/D134780/new/

https://reviews.llvm.org/D134780