[libFuzzer] don't clear Counters in TracePC::CollectFeatures since they will be cleared anyway in ResetMaps

llvm-svn: 297783

1 files changed, 2 insertions, 3 deletions

diff --git a/llvm/lib/Fuzzer/FuzzerTracePC.h b/llvm/lib/Fuzzer/FuzzerTracePC.h
index b33d38747a3..05d03e960c9 100644
--- a/llvm/lib/Fuzzer/FuzzerTracePC.h
+++ b/llvm/lib/Fuzzer/FuzzerTracePC.h
@@ -57,7 +57,7 @@ class TracePC {
   void SetUseCounters(bool UC) { UseCounters = UC; }
   void SetUseValueProfile(bool VP) { UseValueProfile = VP; }
   void SetPrintNewPCs(bool P) { DoPrintNewPCs = P; }
-  template <class Callback> size_t CollectFeatures(Callback CB);
+  template <class Callback> size_t CollectFeatures(Callback CB) const;
 
   void ResetMaps() {
     ValueProfileMap.Reset();
@@ -111,7 +111,7 @@ private:
 };
 
 template <class Callback>
-size_t TracePC::CollectFeatures(Callback CB) {
+size_t TracePC::CollectFeatures(Callback CB) const {
   if (!UsingTracePcGuard()) return 0;
   size_t Res = 0;
   const size_t Step = 8;
@@ -125,7 +125,6 @@ size_t TracePC::CollectFeatures(Callback CB) {
     for (size_t i = Idx; i < Idx + Step; i++) {
       uint8_t Counter = (Bundle >> ((i - Idx) * 8)) & 0xff;
       if (!Counter) continue;
-      Counters[i] = 0;
       unsigned Bit = 0;
       /**/ if (Counter >= 128) Bit = 7;
       else if (Counter >= 32) Bit = 6;