diff options
Diffstat (limited to 'compiler-rt/lib/fuzzer/FuzzerTracePC.cpp')
| -rw-r--r-- | compiler-rt/lib/fuzzer/FuzzerTracePC.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp b/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp index 540d8888248..19c1eaf144c 100644 --- a/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp +++ b/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp @@ -356,7 +356,14 @@ void TracePC::HandleCmp(uintptr_t PC, T Arg1, T Arg2) { TORC4.Insert(ArgXor, Arg1, Arg2); else if (sizeof(T) == 8) TORC8.Insert(ArgXor, Arg1, Arg2); - ValueProfileMap.AddValue(Idx); + // TODO: remove these flags and instead use all metrics at once. + if (UseValueProfileMask & 1) + ValueProfileMap.AddValue(Idx); + if (UseValueProfileMask & 2) + ValueProfileMap.AddValue( + PC * 64 + (Arg1 == Arg2 ? 0 : __builtin_clzll(Arg1 - Arg2) + 1)); + if (UseValueProfileMask & 4) // alternative way to use the hamming distance + ValueProfileMap.AddValue(PC * 64 + ArgDistance); } static size_t InternalStrnlen(const char *S, size_t MaxLen) { |
