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authorMax Moroz <mmoroz@chromium.org>2018-07-16 17:50:46 +0000
committerMax Moroz <mmoroz@chromium.org>2018-07-16 17:50:46 +0000
commit5bbe2af12238b65ac38bb1530c85fb6660c4ef9e (patch)
treea5004c4a28822f03ef8090ccdd524d51e2836668 /test/fuzzer/fuzzer-mutationstats.test
parentbb7bcc79811d249e5573f35ae39f65aff927dcea (diff)
[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 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337194 91177308-0d34-0410-b5e6-96231b3b80d8
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diff --git a/test/fuzzer/fuzzer-mutationstats.test b/test/fuzzer/fuzzer-mutationstats.test
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+RUN: %cpp_compiler %S/SimpleTest.cpp -o %t-MutationStatsTest
+RUN: not %run %t-MutationStatsTest -print_mutation_stats=1 2>&1 | FileCheck %s
+
+# Ensures there are some non-zero values in the usefulness percentages printed.
+CHECK: stat::mutation_usefulness: {{[0-9]+\.[0-9]+}}