[PATCH] D138904: [AArch64] Transform shift+and to shift+shift to select more shifted register

[Dave Green via Phabricator via llvm-commits]

dmgreen added a comment.

Performance can depend on many factors, and often less instructions is a win in itself. Can you separate out and rebase on the tests to just show the differences?


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  https://reviews.llvm.org/D138904/new/

https://reviews.llvm.org/D138904