Kostya Serebryany
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05628fa8ff
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[libFuzzer] don't clear Counters in TracePC::CollectFeatures since they will be cleared anyway in ResetMaps
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297783 91177308-0d34-0410-b5e6-96231b3b80d8
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2017-03-14 21:40:53 +00:00 |
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Marcos Pividori
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2ee8a5f7b7
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[libFuzzer] Use long long to ensure 64 bits.
We should always use unsigned long long to ensure 64 bits. On Windows, unsigned
long is 4 bytes. This was the reason why value-profile-cmp4.test was failing on
Windows.
Differential Revision: https://reviews.llvm.org/D29617
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294390 91177308-0d34-0410-b5e6-96231b3b80d8
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2017-02-08 00:03:31 +00:00 |
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Kostya Serebryany
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49c910dae1
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[libFuzzer] simplify the value profiling callback further: don't use (idx MOD prime) on the hot path where it is useless anyway
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293239 91177308-0d34-0410-b5e6-96231b3b80d8
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2017-01-27 00:39:12 +00:00 |
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Kostya Serebryany
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bcc64b878f
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[libFuzzer] simplify the value profile code and disable asan/msan on it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293236 91177308-0d34-0410-b5e6-96231b3b80d8
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2017-01-27 00:09:59 +00:00 |
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Kostya Serebryany
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cc6cbfdebc
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[libFuzzer] refactoring to make -shrink=1 work for value profile, added a test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283409 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-10-05 22:56:21 +00:00 |
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Kostya Serebryany
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7c5de022d5
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[libFuzzer] initialize ValueBitMap::NumBits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282721 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-09-29 15:51:28 +00:00 |
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Kostya Serebryany
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e2e54904b7
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[libFuzzer] simplify HandleTrace again, start re-running interesting units and collecting their features.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282316 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-09-23 23:51:58 +00:00 |
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Kostya Serebryany
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28f017d845
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[libFuzzer] change ValueBitMap to remember the number of bits in it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282216 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-09-23 00:22:46 +00:00 |
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Kostya Serebryany
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e52f15bf1a
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[libFuzzer] more refactoring
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282113 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-09-21 21:17:23 +00:00 |
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Kostya Serebryany
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f0b5dd76ab
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[libFuzzer] implement print_pcs with trace-pc-guard. Change the trace-pc-guard heuristic for 8-bit counters to look more like in AFL (not that it's provable better, but the existin test preferes this heuristic)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281577 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-09-15 04:36:45 +00:00 |
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Kostya Serebryany
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0c7940eaf1
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[libFuzzer] use __attribute__((target("popcnt"))) only on x86_64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279601 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-08-24 01:38:42 +00:00 |
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Kostya Serebryany
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ac9c0f4d45
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[libFuzzer] force proper popcnt instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279002 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-08-17 23:09:57 +00:00 |
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Kostya Serebryany
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f61ef6cf72
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[libFuzzer] minor speed improvement
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278856 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-08-16 21:28:05 +00:00 |
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Kostya Serebryany
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2e1aa9cd1c
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[libFuzzer] new experimental feature: value profiling. Profiles values that affect control flow and treats new values as new coverage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278839 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-08-16 19:33:51 +00:00 |
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Kostya Serebryany
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b4d6119096
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[libFuzzer] refactoring around PCMap, NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278825 91177308-0d34-0410-b5e6-96231b3b80d8
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2016-08-16 17:37:13 +00:00 |
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