Kostya Serebryany a5f94fb6c9 [libFuzzer] add -trace_cmp=1 (guiding mutations based on the observed CMP instructions). This is a reincarnation of the previously deleted -use_traces, but using a different approach for collecting traces. Still a toy, but at least it scales well. Also fix -merge in trace-pc-guard mode ...

llvm-svn: 284273

2016-10-14 20:20:33 +00:00

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