Optimize binary matching code #10137
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The BEAM code resulting from complex binary match code sometimes repeats a test that has failed. This commit eliminates some of those repeated tests. That can result in a considerable code size reduction for functions doing complex binary matching. Here are some example of modules where that happened: `dets_v9`, `ssl_gen_statem`, `ssl_handshake`, and `zip`. This optimization also avoids repeating a failed call to a guard BIF.
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CT Test Results 2 files 333 suites 8m 32s ⏱️ Results for commit e672410. ♻️ This comment has been updated with latest results. To speed up review, make sure that you have read Contributing to Erlang/OTP and that all checks pass. See the TESTING and DEVELOPMENT HowTo guides for details about how to run test locally. Artifacts
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lucioleKi
approved these changes
Aug 29, 2025
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The BEAM code resulting from complex binary match code sometimes repeats a test that has failed. This pull request eliminates some of those repeated tests. That can result in a considerable code size reduction for functions doing complex binary matching. Here are some example of modules where that happened:
dets_v9,ssl_gen_statem,ssl_handshake, andzip.This optimization also avoids repeating a failed call to a guard BIF.