[PATCH] D77413: Support: Add specializations for reverseBits to use builtin

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D77413#1960124 <https://reviews.llvm.org/D77413#1960124>, @aaron.ballman wrote:

> This LGTM, but I'm not certain how we could add test coverage for the change. Maybe this is sufficiently obvious to be okay without it, though.


It's already covered by unit tests


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https://reviews.llvm.org/D77413