27 MutationDispatcher::MutationDispatcher(Random &Rand,  in MutationDispatcher()  argument
29     : Rand(Rand), Options(Options) {  in MutationDispatcher()
65 static char RandCh(Random &Rand) {  in RandCh()  argument
66   if (Rand.RandBool()) return Rand(256);  in RandCh()
68   return Special[Rand(sizeof(Special) - 1)];  in RandCh()
73   return EF->LLVMFuzzerCustomMutator(Data, Size, MaxSize, Rand.Rand());  in Mutate_Custom()
80   size_t Idx = Rand(Corpus->size());  in Mutate_CustomCrossOver()
87       Data, Size, Other.data(), Other.size(), U.data(), U.size(), Rand.Rand());  in Mutate_CustomCrossOver()
100       Rand(std::min(Size, (size_t)8)) + 1; // [1,8] and <= Size.  in Mutate_ShuffleBytes()
101   size_t ShuffleStart = Rand(Size - ShuffleAmount);  in Mutate_ShuffleBytes()
104                       Rand);  in Mutate_ShuffleBytes()
112   size_t N = Rand(Size / 2) + 1;  in Mutate_EraseBytes()
114   size_t Idx = Rand(Size - N + 1);  in Mutate_EraseBytes()
124   size_t Idx = Rand(Size + 1);  in Mutate_InsertByte()
127   Data[Idx] = RandCh(Rand);  in Mutate_InsertByte()
137   size_t N = Rand(MaxBytesToInsert - kMinBytesToInsert + 1) + kMinBytesToInsert;  in Mutate_InsertRepeatedBytes()
139   size_t Idx = Rand(Size + 1);  in Mutate_InsertRepeatedBytes()
143   uint8_t Byte = Rand.RandBool() ? Rand(256) : (Rand.RandBool() ? 0 : 255);  in Mutate_InsertRepeatedBytes()
152   size_t Idx = Rand(Size);  in Mutate_ChangeByte()
153   Data[Idx] = RandCh(Rand);  in Mutate_ChangeByte()
160   size_t Idx = Rand(Size);  in Mutate_ChangeBit()
161   Data[Idx] ^= 1 << Rand(8);  in Mutate_ChangeBit()
182                          Rand.RandBool();  in ApplyDictionaryEntry()
183   if (Rand.RandBool()) {  // Insert W.  in ApplyDictionaryEntry()
185     size_t Idx = UsePositionHint ? DE.GetPositionHint() : Rand(Size + 1);  in ApplyDictionaryEntry()
191     size_t Idx = UsePositionHint ? DE.GetPositionHint() : Rand(Size - W.size());  in ApplyDictionaryEntry()
207   bool HandleFirst = Rand.RandBool();  in MakeDictionaryEntryFromCMP()
214     DesiredBytes += Rand(-1, 1);  in MakeDictionaryEntryFromCMP()
215     if (Rand.RandBool()) ExistingBytes = Bswap(ExistingBytes);  in MakeDictionaryEntryFromCMP()
216     if (Rand.RandBool()) DesiredBytes = Bswap(DesiredBytes);  in MakeDictionaryEntryFromCMP()
229     return DictionaryEntry(W, Positions[Rand(NumPositions)]);  in MakeDictionaryEntryFromCMP()
239   if (Rand.RandBool()) {  in Mutate_AddWordFromTORC()
240     auto X = TPC.TORC8.Get(Rand.Rand());  in Mutate_AddWordFromTORC()
243     auto X = TPC.TORC4.Get(Rand.Rand());  in Mutate_AddWordFromTORC()
244     if ((X.A >> 16) == 0 && (X.B >> 16) == 0 && Rand.RandBool())  in Mutate_AddWordFromTORC()
269   DictionaryEntry &DE = D[Rand(D.size())];  in AddWordFromDictionary()
282   size_t ToBeg = Rand(ToSize);  in CopyPartOf()
283   size_t CopySize = Rand(ToSize - ToBeg) + 1;  in CopyPartOf()
286   size_t FromBeg = Rand(FromSize - CopySize + 1);  in CopyPartOf()
300   size_t CopySize = Rand(MaxCopySize) + 1;  in InsertPartOf()
301   size_t FromBeg = Rand(FromSize - CopySize + 1);  in InsertPartOf()
303   size_t ToInsertPos = Rand(ToSize + 1);  in InsertPartOf()
321   if (Rand.RandBool())  in Mutate_CopyPart()
330   size_t B = Rand(Size);  in Mutate_ChangeASCIIInteger()
343   switch(Rand(5)) {  in Mutate_ChangeASCIIInteger()
348     case 4: Val = Rand(Val * Val); break;  in Mutate_ChangeASCIIInteger()
362 size_t ChangeBinaryInteger(uint8_t *Data, size_t Size, Random &Rand) {  in ChangeBinaryInteger()  argument
364   size_t Off = Rand(Size - sizeof(T) + 1);  in ChangeBinaryInteger()
367   if (Off < 64 && !Rand(4)) {  in ChangeBinaryInteger()
369     if (Rand.RandBool())  in ChangeBinaryInteger()
373     T Add = Rand(21);  in ChangeBinaryInteger()
375     if (Rand.RandBool())  in ChangeBinaryInteger()
379     if (Add == 0 || Rand.RandBool()) // Maybe negate.  in ChangeBinaryInteger()
390   switch (Rand(4)) {  in Mutate_ChangeBinaryInteger()
391     case 3: return ChangeBinaryInteger<uint64_t>(Data, Size, Rand);  in Mutate_ChangeBinaryInteger()
392     case 2: return ChangeBinaryInteger<uint32_t>(Data, Size, Rand);  in Mutate_ChangeBinaryInteger()
393     case 1: return ChangeBinaryInteger<uint16_t>(Data, Size, Rand);  in Mutate_ChangeBinaryInteger()
394     case 0: return ChangeBinaryInteger<uint8_t>(Data, Size, Rand);  in Mutate_ChangeBinaryInteger()
404   size_t Idx = Rand(Corpus->size());  in Mutate_CrossOver()
410   switch(Rand(3)) {  in Mutate_CrossOver()
490       Data[i] = RandCh(Rand);  in MutateImpl()
500     auto M = Mutators[Rand(Mutators.size())];  in MutateImpl()