Performance regression in base64-bytestring/base64/base64-bytes on GHC 8.10.1
Summary
base64-bytestring/base64/base64-bytes experience performance regression on GHC 8.10.1
See also the discussion here (new, at the bottom): https://github.com/emilypi/base64/issues/3
Steps to reproduce
Run the benchmark suite of https://github.com/andrewthad/base64-bytes. For more accurate reproduction, have base64 pointing at HEAD on the master branch.
Expected behavior
Performance should be equal or better.
Environment
Various: GHC 8.6.5, GHC 8.8.3, GHC 8.10.1 on a stock 2017 Macbook Pro