Kostya Serebryany
9b13b8c338
[fuzzer] move default sanitizer options to a separate file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228429 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-06 19:52:07 +00:00
Kostya Serebryany
5d85a10810
[fuzzer] add flag prefer_small_during_initial_shuffle, be a bit more verbose
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228235 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-04 23:42:42 +00:00
Kostya Serebryany
46c638cfc8
[fuzzer] add -runs=N to limit the number of runs per session. Also, make sure we do some mutations w/o cross over.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228214 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-04 22:20:09 +00:00
Kostya Serebryany
eb884daa38
[fuzzer] make multi-process execution more verbose; fix mutation to actually respect mutation depth and to never produce empty units
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228170 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-04 19:10:20 +00:00
Kostya Serebryany
8fa9947e4d
[fuzzer]: fix exit code, add more diagnostics
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228103 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-04 01:22:57 +00:00
Kostya Serebryany
a1667be228
[fuzzer] add flags to run fuzzer in multiple parallel processes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227664 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-31 01:14:40 +00:00
Kostya Serebryany
4ac4c33f2d
[fuzzer] add -use_full_coverage_set=1 which solves FullCoverageSetTest. This does not scale very well yet, but might be a good start.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227507 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-29 23:01:07 +00:00
Aaron Ballman
94879c0134
Reverting r227452, which adds back the fuzzer library. Now excluding the fuzzer library based on LLVM_USE_SANITIZE_COVERAGE being set or unset.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227464 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-29 16:58:29 +00:00
Aaron Ballman
f316f2ea52
Temporarily reverting the fuzzer library as it causes too many build issues for MSVC users. This reverts: 227445, 227395, 227389, 227357, 227254, 227252
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227452 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-29 15:49:22 +00:00
Kostya Serebryany
1f3043175c
[fuzzer] add option -save_minimized_corpus
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227395 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-28 23:48:39 +00:00
Kostya Serebryany
556d1a3b80
[fuzzer] properly enable asan's coverage feedback
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227254 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-27 22:19:55 +00:00
Kostya Serebryany
c9baf3befb
Add a Fuzzer library
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Summary:
A simple genetic in-process coverage-guided fuzz testing library.
I've used this fuzzer to test clang-format
(it found 12+ bugs, thanks djasper@ for the fixes!)
and it may also help us test other parts of LLVM.
So why not keep it in the LLVM repository?
I plan to add the cmake build rules later (in a separate patch, if that's ok)
and also add a clang-format-fuzzer target.
See README.txt for details.
Test Plan: Tests will follow separately.
Reviewers: djasper, chandlerc, rnk
Reviewed By: rnk
Subscribers: majnemer, ygribov, dblaikie, llvm-commits
Differential Revision: http://reviews.llvm.org/D7184
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227252 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-27 22:08:41 +00:00
