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|
(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Xavier Leroy, INRIA Paris-Rocquencourt *)
(* *)
(* Copyright Institut National de Recherche en Informatique et en *)
(* Automatique. All rights reserved. This file is distributed *)
(* under the terms of the INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
(** Pretty-printer for Mach code *)
open Format
open Camlcoq
open Datatypes
open Maps
open AST
open Integers
open Locations
open Machregsaux
open Mach
open PrintOp
let name_of_chunk = function
| Mint8signed -> "int8signed"
| Mint8unsigned -> "int8unsigned"
| Mint16signed -> "int16signed"
| Mint16unsigned -> "int16unsigned"
| Mint32 -> "int32"
| Mfloat32 -> "float32"
| Mfloat64 -> "float64"
let name_of_type = function
| Tint -> "int"
| Tfloat -> "float"
let reg pp r =
match name_of_register r with
| Some s -> fprintf pp "%s" s
| None -> fprintf pp "<unknown reg>"
let rec regs pp = function
| [] -> ()
| [r] -> reg pp r
| r1::rl -> fprintf pp "%a, %a" reg r1 regs rl
let ros pp = function
| Coq_inl r -> reg pp r
| Coq_inr s -> fprintf pp "\"%s\"" (extern_atom s)
let print_instruction pp i =
match i with
| Mgetstack(ofs, ty, res) ->
fprintf pp "%a = stack(%ld, %s)@ "
reg res (camlint_of_coqint ofs) (name_of_type ty)
| Msetstack(arg, ofs, ty) ->
fprintf pp "stack(%ld, %s) = %a@ "
(camlint_of_coqint ofs) (name_of_type ty) reg arg
| Mgetparam(ofs, ty, res) ->
fprintf pp "%a = param(%ld, %s)@ "
reg res (camlint_of_coqint ofs) (name_of_type ty)
| Mop(op, args, res) ->
fprintf pp "%a = %a@ "
reg res (PrintOp.print_operation reg) (op, args)
| Mload(chunk, addr, args, dst) ->
fprintf pp "%a = %s[%a]@ "
reg dst (name_of_chunk chunk)
(PrintOp.print_addressing reg) (addr, args)
| Mstore(chunk, addr, args, src) ->
fprintf pp "%s[%a] = %a@ "
(name_of_chunk chunk)
(PrintOp.print_addressing reg) (addr, args)
reg src
| Mcall(sg, fn) ->
fprintf pp "call %a@ " ros fn
| Mtailcall(sg, fn) ->
fprintf pp "tailcall %a@ " ros fn
| Mbuiltin(ef, args, res) ->
fprintf pp "%a = builtin \"%s\"(%a)@ "
reg res (extern_atom ef.ef_id) regs args
| Mlabel lbl ->
fprintf pp "%ld:@ " (camlint_of_positive lbl)
| Mgoto lbl ->
fprintf pp "goto %ld@ " (camlint_of_positive lbl)
| Mcond(cond, args, lbl) ->
fprintf pp "if (%a) goto %ld@ "
(PrintOp.print_condition reg) (cond, args)
(camlint_of_positive lbl)
| Mjumptable(arg, tbl) ->
let tbl = Array.of_list tbl in
fprintf pp "@[<v 2>jumptable (%a)" reg arg;
for i = 0 to Array.length tbl - 1 do
fprintf pp "@ case %d: goto %ld" i (camlint_of_positive tbl.(i))
done;
fprintf pp "@]@ "
| Mreturn ->
fprintf pp "return@ "
let print_function pp f =
fprintf pp "@[<v 2>f() {@ ";
List.iter (print_instruction pp) f.fn_code;
fprintf pp "@;<0 -2>}@]@."
let print_fundef pp fd =
match fd with
| Internal f -> print_function pp f
| External _ -> ()
let destination : string option ref = ref None
let currpp : formatter option ref = ref None
let print_if fd =
match !destination with
| None -> ()
| Some f ->
let pp =
match !currpp with
| Some pp -> pp
| None ->
let oc = open_out f in
let pp = formatter_of_out_channel oc in
currpp := Some pp;
pp
in print_fundef pp fd
|
