Well dang, I guess -define macros DO have a place!

optimize_this.erl

-module(tst).
-export([go/0]).

a()->1.
b()->two.
c()->"three".

go() -> [a(),b(),c()].
{module, tst}.  %% version = 0

{exports, [{go,0},{module_info,0},{module_info,1}]}.

{attributes, []}.

{labels, 13}.


{function, a, 0, 2}.
  {label,1}.
    {func_info,{atom,tst},{atom,a},0}.
  {label,2}.
    {move,{integer,1},{x,0}}.
    return.


{function, b, 0, 4}.
  {label,3}.
    {func_info,{atom,tst},{atom,b},0}.
  {label,4}.
    {move,{atom,two},{x,0}}.
    return.


{function, c, 0, 6}.
  {label,5}.
    {func_info,{atom,tst},{atom,c},0}.
  {label,6}.
    {move,{literal,"three"},{x,0}}.
    return.


{function, go, 0, 8}.
  {label,7}.
    {func_info,{atom,tst},{atom,go},0}.
  {label,8}.
    {allocate_zero,2,0}.
    {call,0,{f,2}}.
    {move,{x,0},{y,1}}.
    {call,0,{f,4}}.
    {move,{x,0},{y,0}}.
    {call,0,{f,6}}.
    {test_heap,6,1}.
    {put_list,{x,0},nil,{x,0}}.
    {put_list,{y,0},{x,0},{x,1}}.
    {put_list,{y,1},{x,1},{x,0}}.
    {deallocate,2}.
    return.


{function, module_info, 0, 10}.
  {label,9}.
    {func_info,{atom,tst},{atom,module_info},0}.
  {label,10}.
    {move,{atom,tst},{x,0}}.
    {call_ext_only,1,{extfunc,erlang,get_module_info,1}}.


{function, module_info, 1, 12}.
  {label,11}.
    {func_info,{atom,tst},{atom,module_info},1}.
  {label,12}.
    {move,{x,0},{x,1}}.
    {move,{atom,tst},{x,0}}.
    {call_ext_only,2,{extfunc,erlang,get_module_info,2}}.