[PATCH] D48054: [libFuzzer] Mutation tracking and logging implemented

[Max Moroz via Phabricator via llvm-commits]

Dor1s added a comment.

Since Matt got automatically added to the subscribers, here is some context. Kode is an intern on our team who is looking into leveraging mutation usefulness statistics somehow to improve fuzzing efficiency. This step only adds stats computation under an experimental flag. The next step would be to enable those stats on ClusterFuzz and collect usefulness distribution from various fuzz targets running in various circumstances.  While stats will be collected, Kode will be trying different approaches for mutation selection algorithm (instead of existing `Rand()`) and, as a result, expected to add that new algorithm under this or another experimental flag.


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D48054