/Volumes/SandBox/clang/clang/clang/unittests/VMCore/MetadataTest.cpp: In member function 'virtual void<unnamed>::MDNodeTest_Everything_Test::TestBody()': /Volumes/SandBox/clang/clang/clang/unittests/VMCore/MetadataTest.cpp: 76: warning: dereferencing type-punned pointer will break strict- aliasing rules :-(