[PATCH] D113778: [AMDGPU] Use shift for b64 mov

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

64-bit shifts were quarter rate instructions last I checked, so this is slower


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  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D113778/new/

https://reviews.llvm.org/D113778