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9 Commits

Author SHA1 Message Date
Kostya Serebryany 016852c396 [fuzzer] split main() into FuzzerDriver() that takes a callback as a parameter and a tiny main() in a separate file 
llvm-svn: 229882
 2015-02-19 18:45:37 +00:00
Kostya Serebryany 92e0476c67 [fuzzer] add flag prefer_small_during_initial_shuffle, be a bit more verbose 
llvm-svn: 228235
 2015-02-04 23:42:42 +00:00
Kostya Serebryany 33f866922a [fuzzer] add -runs=N to limit the number of runs per session. Also, make sure we do some mutations w/o cross over. 
llvm-svn: 228214
 2015-02-04 22:20:09 +00:00
Kostya Serebryany 5b266a8a23 [fuzzer] make multi-process execution more verbose; fix mutation to actually respect mutation depth and to never produce empty units 
llvm-svn: 228170
 2015-02-04 19:10:20 +00:00
Kostya Serebryany 2c1b33b897 [fuzzer] add -use_full_coverage_set=1 which solves FullCoverageSetTest. This does not scale very well yet, but might be a good start. 
llvm-svn: 227507
 2015-01-29 23:01:07 +00:00
Aaron Ballman ef11698cac Reverting r227452, which adds back the fuzzer library. Now excluding the fuzzer library based on LLVM_USE_SANITIZE_COVERAGE being set or unset. 
llvm-svn: 227464
 2015-01-29 16:58:29 +00:00
Aaron Ballman 7b54ed221a Temporarily reverting the fuzzer library as it causes too many build issues for MSVC users. This reverts: 227445, 227395, 227389, 227357, 227254, 227252 
llvm-svn: 227452
 2015-01-29 15:49:22 +00:00
Kostya Serebryany 265cf04f9c [fuzzer] add option -save_minimized_corpus 
llvm-svn: 227395
 2015-01-28 23:48:39 +00:00
Kostya Serebryany d53b43fe11 Add a Fuzzer library 
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

llvm-svn: 227252
 2015-01-27 22:08:41 +00:00