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[libFuzzer] Mutation tracking and logging implemented.

Description

[libFuzzer] Mutation tracking and logging implemented.

Summary:
Code now exists to track number of mutations that are used in fuzzing in total
and ones that produce new coverage. The stats are currently being dumped to the
command line.

Patch by Kodé Williams (@kodewilliams).

Reviewers: metzman, Dor1s, morehouse, kcc

Reviewed By: Dor1s, morehouse, kcc

Subscribers: delcypher, kubamracek, kcc, morehouse, llvm-commits, #sanitizers, mgorny

Differential Revision: https://reviews.llvm.org/D48054

Details

Committed
Dor1sJul 16 2018, 10:50 AM
Reviewer
Dor1s
Differential Revision
D48054: [libFuzzer] Mutation tracking and logging implemented.
Parents
rL337193: [libFuzzer] Add msan and dfsan to test deps.
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