Fix: or doesn't work well

[Akeit0]

#77

[wmltogether]

Thank you for your fix. The issue with "or" has been resolved, but this piece of code cannot pass. Do we need to add some conditions in FunctionCompilationContext.PushOrMergeInstruction() when OpCode.Move ?

Exception:

Lua.LuaRuntimeException : @test_local.lua:10: attempt to index a 'Nil' value
   at Lua.LuaRuntimeException.AttemptInvalidOperation(Traceback traceback, String op, LuaValue a) in 

Lua:

sun = {}
sun.mass = 1

local bodies = { sun, sun, sun, sun, sun }

local function test_local(b, len)
    for i = 1, len do
        local bi = b[i]
        local bim = bi.mass
        print(bi.mass)
    end
end

local len = #bodies

test_local(bodies, len)


print"OK"

case OpCode.Move:

                if (
                    // available to merge and  last A is not local variable
                    lastInstruction.A == instruction.B && !activeLocals[lastInstruction.A])
                {
                    switch (lastInstruction.OpCode)
                    {
                        case OpCode.LoadK:
                        case OpCode.LoadBool when lastInstruction.C == 0:
                        case OpCode.LoadNil when lastInstruction.B == 0:
                        // remove these lines works?
                        //case OpCode.GetUpVal:
                        //case OpCode.GetTabUp:
                        //case OpCode.GetTable: 
                        //case OpCode.SetTabUp:
                        //case OpCode.SetUpVal:
                        //case OpCode.SetTable:
                        //case OpCode.NewTable:
                        case OpCode.Self:
                        case OpCode.Add:
                        case OpCode.Sub:

[Akeit0]

Thank you for your fix. The issue with "or" has been resolved, but this piece of code cannot pass. Do we need to add some conditions in FunctionCompilationContext.PushOrMergeInstruction() when OpCode.Move ?

For now, but the case you indicated has been dealt with and will be merged.

There may still be bugs, but this is a temporary fix as we are planning a full compiler overhaul.