Created attachment 31929 [details]
test case

The following C++ code:

class A
{
};

class B : virtual public A
{
public:
        B();
        virtual ~B();
};

B::B()
{
}

B::~B()
{
}


causes an incorrect warning with current 4.9 git with -Os:

[bero@localhost gcc-test]$ arm-linux-androideabi-g++ -Werror=return-type -Os -o test.o test.cpp
test.cpp: In constructor 'B::B()':
test.cpp:14:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
test.cpp: In constructor 'B::B()':
test.cpp:14:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
test.cpp: In destructor 'B::~B()':
test.cpp:18:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
test.cpp: In destructor 'virtual B::~B()':
test.cpp:18:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
cc1plus: some warnings being treated as errors