using System;

namespace Hello
{
    internal class Program
    {
        enum orientation : byte
        {
            north = 1,
            south = 2,
            east = 3,
            west = 4
        }
        private static int Main()
        {
            orientation myDir = orientation.north;
            return Convert.ToInt32(myDir);
        }
    }
}

(gdb) run
Starting program: /home/signatov/corert/tests/src/Simple/Hello/bin/Debug/x64/native/Hello 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffdc895700 (LWP 27871)]

Thread 1 "Hello" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0  0x0000000000000000 in ?? ()
#1  0x0000000000754289 in System_Private_CoreLib::System::Convert::ToInt32 (_a0=0x7fffdc898b48) at /home/signatov/corert/tests/src/Simple/Hello/obj/Debug/x64/native/Hello.cpp:297709
#2  0x0000000000752285 in Hello::Hello::Program::Main () at /home/signatov/corert/tests/src/Simple/Hello/obj/Debug/x64/native/Hello.cpp:276128
#3  0x00000000007359ed in Hello::_Module_::MainMethodWrapper () at /home/signatov/corert/tests/src/Simple/Hello/obj/Debug/x64/native/Hello.cpp:274913
#4  0x0000000000735736 in Hello::_Module_::StartupCodeMain (_a0=1, _a1=140737488346376) at /home/signatov/corert/tests/src/Simple/Hello/obj/Debug/x64/native/Hello.cpp:262561
#5  0x0000000000735a7b in __managed__Main (_a0=1, _a1=140737488346376) at /home/signatov/corert/tests/src/Simple/Hello/obj/Debug/x64/native/Hello.cpp:262569
#6  0x0000000000b2993a in main (argc=1, argv=0x7fffffffdd08) at /home/signatov/corert/src/Native/Bootstrap/main.cpp:319
(gdb) b System_Private_CoreLib::System::Convert::ToInt32
Breakpoint 1 at 0x7541fc: file /home/signatov/corert/tests/src/Simple/Hello/obj/Debug/x64/native/Hello.cpp, line 297692.
(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /home/signatov/corert/tests/src/Simple/Hello/bin/Debug/x64/native/Hello 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffdc895700 (LWP 27875)]

Thread 1 "Hello" hit Breakpoint 1, System_Private_CoreLib::System::Convert::ToInt32 (_a0=0x7fffdc898b48)
    at /home/signatov/corert/tests/src/Simple/Hello/obj/Debug/x64/native/Hello.cpp:297692
297692		int32_t _l0 = 0;
(gdb) n
297697		void* _1 = _a0;
(gdb) n
297698		if (_1 == 0) {
(gdb) n
297701	}
(gdb) n
297705		void* _2 = _a0;
(gdb) n
297706		void* _3 = __castclass(_2, ::System_Private_CoreLib::System::IConvertible::__getMethodTable());
(gdb) n
297708	void*_4 = (void*) ((ToInt32) System_Private_CoreLib::System::Runtime::DispatchResolve::FindInterfaceMethodImplementationTarget(::System_Private_CoreLib::System::Object::get_EEType((::System_Private_CoreLib::System::Object*)_3), ((::System_Private_CoreLib::Internal::Runtime::EEType *)(::System_Private_CoreLib::System::IConvertible::__getMethodTable())), (uint16_t)(::System_Private_CoreLib::System::IConvertible::__getslot__ToInt32(_3))));
(gdb) n
297709		int32_t _5 = ((ToInt32)_4)((::System_Private_CoreLib::System::IConvertible*)_3, (::System_Private_CoreLib::System::IFormatProvider*)0);
(gdb) p _4
$1 = (void *) 0x0
(gdb) p _3
$2 = (void *) 0x7fffdc898b48
(gdb) s

Thread 1 "Hello" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()

    <CppCompilerAndLinkerArg Condition="'$(Configuration)' == 'Debug'" Include="-O0 -g" />