commit e9ed2327b618e4846f6e510943d5b33bc37c7299
author Kostya Serebryany <kcc@google.com> Tue Dec 12 23:11:28 2017 +0000
committer Kostya Serebryany <kcc@google.com> Tue Dec 12 23:11:28 2017 +0000
tree 8a19a64ebe78ac5c327045f4a78497d2222f15ee
parent 3cf695aa383233c01e23cddebddc3dfcb5a4b77d

[libFuzzer] change the strategy for -experimental_len_control to grow max_len slower

llvm-svn: 320531

compiler-rt/lib/fuzzer/FuzzerUtil.h

diff --git a/compiler-rt/lib/fuzzer/FuzzerUtil.h b/compiler-rt/lib/fuzzer/FuzzerUtil.h
index 9a6227e..f2ed028 100644
--- a/compiler-rt/lib/fuzzer/FuzzerUtil.h
+++ b/compiler-rt/lib/fuzzer/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