[PATCH] D146523: [AMDGPU]: Add new intrinsic llvm.amdgcn.convergent.copy

[Brian Sumner via Phabricator via llvm-commits]

b-sumner added a comment.

It might be better to loop over only active lanes, found using ctz or clz builtins.


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  https://reviews.llvm.org/D146523/new/

https://reviews.llvm.org/D146523