[PATCH] D137542: [AMDGPU] Use aperture registers instead of S_GETREG

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

> do we have to change the RC of the src_shared/private_base register to 64 bit?

Yes that sounds right.

> (ideally it should be available for both, no?)

That would be useful bu apparently it's not how the hardware works. I guess it gives you the 32 low bits which is not very useful because it will always be 0 for src_*_base and -1 for src_*_limit.


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https://reviews.llvm.org/D137542