Emit
val fundecl : Linear.fundecl -> unit
val data : Cmm.data_item list -> unit
val begin_assembly : (module Compiler_owee.Unix_intf.S) -> unit
val end_assembly : unit -> unit
val register_expect_asm_callback : (string -> unit) -> unit
Register a callback to receive filtered and formatted asm code, for expect tests. The callback is automatically cleared after being invoked once.