public static TEnum VolatileRead <TEnum>(this ref TEnum value)
where TEnum : struct, Enum
{
const string resultVar = "result";
const string nonFastPath = "nonFastPath";
DeclareLocals(false, new Var(resultVar, typeof(long)));
Push(ref value);
Emit.Sizeof <TEnum>();
Emit.Ldc_I4_8();
Emit.Beq(nonFastPath);
// fast path - use volatile read instruction
Emit.Volatile();
Emit.Ldobj <TEnum>();
Emit.Ret();
// non-fast path - use Volatile class
MarkLabel(nonFastPath);
Emit.Call(Method(typeof(Volatile), nameof(Volatile.Read), Type <long>().MakeByRefType()));
Emit.Stloc(resultVar);
Emit.Ldloca(resultVar);
Emit.Ldobj <TEnum>();
return(Return <TEnum>());
}
