diff options
author | Kostya Serebryany <kcc@google.com> | 2018-06-06 23:24:41 +0000 |
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committer | Kostya Serebryany <kcc@google.com> | 2018-06-06 23:24:41 +0000 |
commit | a9cc8ed2df816611876cd51f6e273b427fb6c38c (patch) | |
tree | 8b40371bc10026b92198c44a040a294ec56627ad /lib/fuzzer/FuzzerCorpus.h | |
parent | 4099396c4c843a8bcc685a51665c2acc85490c66 (diff) |
[libFuzzer] remove an experimental flag -use_feature_frequency
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334146 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/fuzzer/FuzzerCorpus.h')
-rw-r--r-- | lib/fuzzer/FuzzerCorpus.h | 23 |
1 files changed, 1 insertions, 22 deletions
diff --git a/lib/fuzzer/FuzzerCorpus.h b/lib/fuzzer/FuzzerCorpus.h index d09702b3a..b4ba64b4b 100644 --- a/lib/fuzzer/FuzzerCorpus.h +++ b/lib/fuzzer/FuzzerCorpus.h @@ -37,7 +37,6 @@ struct InputInfo { bool Reduced = false; bool HasFocusFunction = false; Vector<uint32_t> UniqFeatureSet; - float FeatureFrequencyScore = 1.0; }; class InputCorpus { @@ -46,7 +45,6 @@ class InputCorpus { InputCorpus(const std::string &OutputCorpus) : OutputCorpus(OutputCorpus) { memset(InputSizesPerFeature, 0, sizeof(InputSizesPerFeature)); memset(SmallestElementPerFeature, 0, sizeof(SmallestElementPerFeature)); - memset(FeatureFrequency, 0, sizeof(FeatureFrequency)); } ~InputCorpus() { for (auto II : Inputs) @@ -222,20 +220,6 @@ class InputCorpus { return false; } - void UpdateFeatureFrequency(size_t Idx) { - FeatureFrequency[Idx % kFeatureSetSize]++; - } - float GetFeatureFrequency(size_t Idx) const { - return FeatureFrequency[Idx % kFeatureSetSize]; - } - void UpdateFeatureFrequencyScore(InputInfo *II) { - const float kMin = 0.01, kMax = 100.; - II->FeatureFrequencyScore = kMin; - for (auto Idx : II->UniqFeatureSet) - II->FeatureFrequencyScore += 1. / (GetFeatureFrequency(Idx) + 1.); - II->FeatureFrequencyScore = Min(II->FeatureFrequencyScore, kMax); - } - size_t NumFeatures() const { return NumAddedFeatures; } size_t NumFeatureUpdates() const { return NumUpdatedFeatures; } @@ -273,15 +257,11 @@ private: std::iota(Intervals.begin(), Intervals.end(), 0); for (size_t i = 0; i < N; i++) Weights[i] = Inputs[i]->NumFeatures - ? (i + 1) * Inputs[i]->FeatureFrequencyScore - * (Inputs[i]->HasFocusFunction ? 1000 : 1) + ? (i + 1) * (Inputs[i]->HasFocusFunction ? 1000 : 1) : 0.; if (FeatureDebug) { for (size_t i = 0; i < N; i++) Printf("%zd ", Inputs[i]->NumFeatures); - Printf("NUM\n"); - for (size_t i = 0; i < N; i++) - Printf("%f ", Inputs[i]->FeatureFrequencyScore); Printf("SCORE\n"); for (size_t i = 0; i < N; i++) Printf("%f ", Weights[i]); @@ -302,7 +282,6 @@ private: size_t NumUpdatedFeatures = 0; uint32_t InputSizesPerFeature[kFeatureSetSize]; uint32_t SmallestElementPerFeature[kFeatureSetSize]; - float FeatureFrequency[kFeatureSetSize]; std::string OutputCorpus; }; |