[llvm-bugs] [Bug 36371] New: [libFuzzer] Enable length control heuristic.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=36371

            Bug ID: 36371
           Summary: [libFuzzer] Enable length control heuristic.
           Product: compiler-rt
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: compiler-rt
          Assignee: unassignedbugs at nondot.org
          Reporter: mascasa at google.com
                CC: llvm-bugs at lists.llvm.org

Experiments with
https://github.com/google/fuzzer-test-suite/tree/master/engine-comparison show
improvement in libFuzzer's coverage with the heuristic, particularly on
benchmarks where AFL normally performs better than libFuzzer.

Benchmarks:
http://storage.googleapis.com/fuzzer-test-suite-public/afl-vs-libfuzzer4/index.html

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