49 lines
2.0 KiB
OCaml
49 lines
2.0 KiB
OCaml
(***********************************************************************)
|
|
(* *)
|
|
(* Objective Caml *)
|
|
(* *)
|
|
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
|
|
(* *)
|
|
(* Copyright 1997 Institut National de Recherche en Informatique et *)
|
|
(* Automatique. Distributed only by permission. *)
|
|
(* *)
|
|
(***********************************************************************)
|
|
|
|
(* $Id$ *)
|
|
|
|
(* Instruction scheduling *)
|
|
|
|
type code_dag_node =
|
|
{ instr: Linearize.instruction;
|
|
delay: int;
|
|
mutable sons: (code_dag_node * int) list;
|
|
mutable date: int;
|
|
mutable length: int;
|
|
mutable ancestors: int;
|
|
mutable emitted_ancestors: int }
|
|
|
|
class virtual scheduler_generic (unit) =
|
|
(* Can be overriden by processor description *)
|
|
virtual oper_issue_cycles : Mach.operation -> int
|
|
(* Number of cycles needed to issue the given operation *)
|
|
virtual oper_latency : Mach.operation -> int
|
|
(* Number of cycles needed to complete the given operation *)
|
|
method oper_in_basic_block : Mach.operation -> bool
|
|
(* Says whether the given operation terminates a basic block *)
|
|
|
|
(* Internal stuff, don't override *)
|
|
method add_instruction :
|
|
code_dag_node list -> Linearize.instruction -> code_dag_node list
|
|
method instr_in_basic_block : Linearize.instruction -> bool
|
|
method instr_issue_cycles : Linearize.instruction -> int
|
|
method instr_latency : Linearize.instruction -> int
|
|
method ready_instruction :
|
|
int -> code_dag_node list -> code_dag_node option
|
|
method reschedule :
|
|
code_dag_node list ->
|
|
int -> Linearize.instruction -> Linearize.instruction
|
|
|
|
(* Entry point *)
|
|
method schedule_fundecl : Linearize.fundecl -> Linearize.fundecl
|
|
end
|