[libFuzzer] change the strategy for -experimental_len_control to grow max_len slower
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@320531 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/FuzzerUtil.h b/FuzzerUtil.h
index 9a6227e..f2ed028 100644
--- a/FuzzerUtil.h
+++ b/FuzzerUtil.h
@@ -80,6 +80,8 @@
size_t SimpleFastHash(const uint8_t *Data, size_t Size);
+inline uint32_t Log(uint32_t X) { return 32 - __builtin_clz(X) - 1; }
+
} // namespace fuzzer
#endif // LLVM_FUZZER_UTIL_H