Google Test llvm/utils/unittest/googletest
OpenBSD regex llvm/lib/Support/{reg*, COPYRIGHT.regex}
pyyaml tests llvm/test/YAMLParser/{*.data, LICENSE.TXT}
+ARM contributions llvm/lib/Target/ARM/LICENSE.TXT
+md5 contributions llvm/lib/Support/MD5.cpp llvm/include/llvm/Support/MD5.h