Miscompiled with pathCC -O3, OK with pathCC -O2

test-compiler-2.cc

namespace v8
{
template < class T > class Handle
{
    T *val_;
};
class HandleScope
{
public:
    HandleScope ();
    ~HandleScope ();
    int isolate_;
    int *prev_next_;
    int *prev_limit_;
    bool is_closed_;
};
class Value
{
};
class String:Value
{
public:
    class Utf8Value
    {
    public:
        Utf8Value (Handle < v8::Value >);
        ~Utf8Value ();
        int *operator* ();
        int *str_;
        int length_;
    };
};
class Arguments
{
public:
    Handle < Value > operator[] (int) const;
};
Handle < Value > Undefined ();
}

class PrintExtension
{
    static v8::Handle < v8::Value > Print (const v8::Arguments &);
};
v8::Handle < v8::Value > PrintExtension::Print (const v8::Arguments & p1)
{
    {
        v8::HandleScope a;
        v8::String::Utf8Value b (p1[0]);
        if (*b == 0)
            return v8::Undefined ();
    }
    return v8::Undefined ();
}