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llvm-project/compiler-rt
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Dokyung Song 428bebaf10 [libFuzzer] Fix value-profile-load test. 
The behavior of the CrossOver mutator has changed with
bb54bcf849. This seems to affect the
value-profile-load test on Darwin. This patch provides a wider margin for
determining success of the value-profile-load test, by testing the targeted
functionality (i.e., GEP index value profile) more directly and faster. To this
end, LoadTest.cpp now uses a narrower condition (Size != 8) for initial pruning
of inputs, effectively preventing libFuzzer from generating inputs longer than
necessary and spending time on mutating such long inputs in the corpus - a
functionality not meant to be tested by this specific test.

Previously, on x86/Linux, it required 6,597,751 execs with -use_value_profile=1
and 19,605,575 execs with -use_value_profile=0 to hit the crash. With this
patch, the test passes with 174,493 execs, providing a wider margin from the
given trials of 10,000,000. Note that, without the value profile (i.e.,
-use_value_profile=0), the test wouldn't pass as it still requires 19,605,575
execs to hit the crash.

Differential Revision: https://reviews.llvm.org/D86247
 		2020-08-19 22:14:43 +00:00
..
cmake [CMake] Don't look for terminfo libs when LLVM_ENABLE_TERMINFO=OFF 2020-08-19 10:31:42 -07:00
docs
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include [DFSan] Don't unmap during dfsan_flush(). 2020-08-14 11:43:49 -07:00
lib [DFSan] Handle mmap() calls before interceptors are installed. 2020-08-19 15:07:41 -07:00
test [libFuzzer] Fix value-profile-load test. 2020-08-19 22:14:43 +00:00
tools Add GWP-ASan fuzz target to compiler-rt/tools. 2019-08-27 18:28:07 +00:00
unittests [Scudo] [GWP-ASan] Add GWP-ASan to Scudo Standalone. 2019-12-13 09:09:41 -08:00
utils [compiler-rt] Fix build on NetBSD 9.99.44 2020-01-31 14:57:20 +01:00
www [www] Change URLs to HTTPS. 2019-10-24 13:25:15 -07:00
.gitignore
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CMakeLists.txt [CMake] Bump CMake minimum version to 3.13.4 2020-07-22 14:25:07 -04:00
CODE_OWNERS.TXT
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CREDITS.TXT
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LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
README.txt
…

README.txt 

Compiler-RT
================================

This directory and its subdirectories contain source code for the compiler
support routines.

Compiler-RT is open source software. You may freely distribute it under the
terms of the license agreement found in LICENSE.txt.

================================