[LLVMbugs] [Bug 12106] New: New trunk compiler crash while compiling begin()/end() for range-based-for (was ok in 3.0)

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=12106

             Bug #: 12106
           Summary: New trunk compiler crash while compiling begin()/end()
                    for range-based-for (was ok in 3.0)
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: C++0x
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: kfmfe04 at gmail.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified


In 3.0, this snippet compiled fine.

In 3.1 (trunk 151577), the compiler crashes.
I am running on Lubuntu oneiric amd64.

The detailed report is here:

http://stackoverflow.com/questions/9475486/range-based-for-implementation-compiles-in-g-but-not-in-clang

Snippet is here:

template< typename E >
class Enum
{
public:
    Enum() : m_e( E::Last ) { }
    Enum( E t ) : m_e( t ) { }
    E operator()() const
    {
        return m_e;
    }

public: 
    class Iterator
    {
    public:
        Iterator( int val ) : m_val( val )    { }
        E operator*( void ) const
        {
            return (E) m_val;
        }
        void operator++( void )
        {
            ++m_val;
        }
        bool operator!=( Iterator rhs ) const
        {
            return m_val != rhs.m_val;
        }
    private:
        int  m_val;
    };
private:
    E m_e;
};

enum class eCOLORS
{
    kBLUE=0, kGREEN, kRED, kPURPLE,
    First=kBLUE, Last=kPURPLE
};

Enum<eCOLORS>::Iterator begin(const Enum<eCOLORS>& b)
{
    return Enum<eCOLORS>::Iterator( (int)(eCOLORS::First ));
}

Enum<eCOLORS>::Iterator end(const Enum<eCOLORS>& b)
{
    return Enum<eCOLORS>::Iterator( (int)(eCOLORS::Last ));
}

int main()
{
    Enum<eCOLORS> e; 
    // for( const auto x : Enum<eCOLORS>() )
    for( auto it=begin(e); 
        it!=end(e); ++it )
    {

    }
}

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