[libFuzzer] make sure we don't execute libFuzzer's mem* and str* hooks while calling mem*/str* inside libFuzzer itself

llvm-svn: 299167

1 files changed, 2 insertions, 0 deletions

diff --git a/llvm/lib/Fuzzer/FuzzerDictionary.h b/llvm/lib/Fuzzer/FuzzerDictionary.h
index f5024b1aeec..84cee87b897 100644
--- a/llvm/lib/Fuzzer/FuzzerDictionary.h
+++ b/llvm/lib/Fuzzer/FuzzerDictionary.h
@@ -33,10 +33,12 @@ public:
   }
 
   bool operator==(const FixedWord<kMaxSize> &w) const {
+    ScopedDoingMyOwnMemOrStr scoped_doing_my_own_mem_os_str;
     return Size == w.Size && 0 == memcmp(Data, w.Data, Size);
   }
 
   bool operator<(const FixedWord<kMaxSize> &w) const {
+    ScopedDoingMyOwnMemOrStr scoped_doing_my_own_mem_os_str;
     if (Size != w.Size)
       return Size < w.Size;
     return memcmp(Data, w.Data, Size) < 0;