diff options
Diffstat (limited to 'kernel')
93 files changed, 3386 insertions, 2391 deletions
diff --git a/kernel/cClosure.ml b/kernel/cClosure.ml index 11616da7b3..11faef02cb 100644 --- a/kernel/cClosure.ml +++ b/kernel/cClosure.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Bruno Barras with Benjamin Werner's account to implement @@ -91,6 +93,7 @@ module type RedFlagsSig = sig val red_add : reds -> red_kind -> reds val red_sub : reds -> red_kind -> reds val red_add_transparent : reds -> transparent_state -> reds + val red_transparent : reds -> transparent_state val mkflags : red_kind list -> reds val red_set : reds -> red_kind -> bool val red_projection : reds -> projection -> bool @@ -164,6 +167,8 @@ module RedFlags = (struct let (l1,l2) = red.r_const in { red with r_const = Id.Pred.remove id l1, l2 } + let red_transparent red = red.r_const + let red_add_transparent red tr = { red with r_const = tr } @@ -258,7 +263,7 @@ type 'a infos_cache = { i_repr : 'a infos -> constr -> 'a; i_env : env; i_sigma : existential -> constr option; - i_rels : constr option array; + i_rels : (Context.Rel.Declaration.t * Pre_env.lazy_val) Range.t; i_tab : 'a KeyTable.t } and 'a infos = { @@ -282,13 +287,16 @@ let ref_value_cache ({i_cache = cache} as infos) ref = let body = match ref with | RelKey n -> - let len = Array.length cache.i_rels in - let i = n - 1 in - let () = if i < 0 || len <= i then raise Not_found in - begin match Array.unsafe_get cache.i_rels i with - | None -> raise Not_found - | Some t -> lift n t - end + let open Context.Rel.Declaration in + let i = n - 1 in + let (d, _) = + try Range.get cache.i_rels i + with Invalid_argument _ -> raise Not_found + in + begin match d with + | LocalAssum _ -> raise Not_found + | LocalDef (_, t, _) -> lift n t + end | VarKey id -> assoc_defined id cache.i_env | ConstKey cst -> constant_value_in cache.i_env cst in @@ -303,26 +311,13 @@ let ref_value_cache ({i_cache = cache} as infos) ref = let evar_value cache ev = cache.i_sigma ev -let defined_rels flags env = -(* if red_local_const (snd flags) then*) - let ctx = rel_context env in - let len = List.length ctx in - let ans = Array.make len None in - let open Context.Rel.Declaration in - let iter i = function - | LocalAssum _ -> () - | LocalDef (_,b,_) -> Array.unsafe_set ans i (Some b) - in - let () = List.iteri iter ctx in - ans -(* else (0,[])*) - let create mk_cl flgs env evars = + let open Pre_env in let cache = { i_repr = mk_cl; i_env = env; i_sigma = evars; - i_rels = defined_rels flgs env; + i_rels = (Environ.pre_env env).env_rel_context.env_rel_map; i_tab = KeyTable.create 17 } in { i_flags = flgs; i_cache = cache } @@ -803,7 +798,7 @@ let drop_parameters depth n argstk = s. @assumes [t] is an irreducible term, and not a constructor. [ind] is the inductive of the constructor term [c] - @raises Not_found if the inductive is not a primitive record, or if the + @raise Not_found if the inductive is not a primitive record, or if the constructor is partially applied. *) let eta_expand_ind_stack env ind m s (f, s') = @@ -857,6 +852,14 @@ let contract_fix_vect fix = in (subs_cons(Array.init nfix make_body, env), thisbody) +let unfold_projection info p = + if red_projection info.i_flags p + then + let open Declarations in + let pb = lookup_projection p (info_env info) in + Some (Zproj (pb.proj_npars, pb.proj_arg, Projection.constant p)) + else None + (*********************************************************************) (* A machine that inspects the head of a term until it finds an atom or a subterm that may produce a redex (abstraction, @@ -875,15 +878,9 @@ let rec knh info m stk = | (None, stk') -> (m,stk')) | FCast(t,_,_) -> knh info t stk | FProj (p,c) -> - let unf = Projection.unfolded p in - if unf || red_set info.i_flags (fCONST (Projection.constant p)) then - (match try Some (lookup_projection p (info_env info)) with Not_found -> None with - | None -> (m, stk) - | Some pb -> - knh info c (Zproj (pb.Declarations.proj_npars, pb.Declarations.proj_arg, - Projection.constant p) - :: zupdate m stk)) - else (m,stk) + (match unfold_projection info p with + | None -> (m, stk) + | Some s -> knh info c (s :: zupdate m stk)) (* cases where knh stops *) | (FFlex _|FLetIn _|FConstruct _|FEvar _| diff --git a/kernel/cClosure.mli b/kernel/cClosure.mli index 119b70e301..b9c71d72af 100644 --- a/kernel/cClosure.mli +++ b/kernel/cClosure.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names @@ -61,6 +63,9 @@ module type RedFlagsSig = sig (** Adds a reduction kind to a set *) val red_add_transparent : reds -> transparent_state -> reds + (** Retrieve the transparent state of the reduction flags *) + val red_transparent : reds -> transparent_state + (** Build a reduction set from scratch = iter [red_add] on [no_red] *) val mkflags : red_kind list -> reds @@ -163,6 +168,7 @@ val stack_tail : int -> stack -> stack val stack_nth : stack -> int -> fconstr val zip_term : (fconstr -> constr) -> constr -> stack -> constr val eta_expand_stack : stack -> stack +val unfold_projection : 'a infos -> Projection.t -> stack_member option (** To lazy reduce a constr, create a [clos_infos] with [create_clos_infos], inject the term to reduce with [inject]; then use @@ -210,7 +216,7 @@ val whd_stack : s. @assumes [t] is a rigid term, and not a constructor. [ind] is the inductive of the constructor term [c] - @raises Not_found if the inductive is not a primitive record, or if the + @raise Not_found if the inductive is not a primitive record, or if the constructor is partially applied. *) val eta_expand_ind_stack : env -> inductive -> fconstr -> stack -> diff --git a/kernel/cPrimitives.ml b/kernel/cPrimitives.ml index 14c11bf107..5b91a9b572 100644 --- a/kernel/cPrimitives.ml +++ b/kernel/cPrimitives.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) type t = diff --git a/kernel/cPrimitives.mli b/kernel/cPrimitives.mli index 8cdffb6702..1e99a69d2f 100644 --- a/kernel/cPrimitives.mli +++ b/kernel/cPrimitives.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) type t = diff --git a/kernel/cbytecodes.ml b/kernel/cbytecodes.ml index 9febc6449b..5ed9b6c675 100644 --- a/kernel/cbytecodes.ml +++ b/kernel/cbytecodes.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Bruno Barras for Benjamin Grégoire as part of the @@ -32,19 +34,64 @@ let cofix_evaluated_tag = 7 let last_variant_tag = 245 type structured_constant = - | Const_sorts of Sorts.t + | Const_sort of Sorts.t | Const_ind of inductive | Const_proj of Constant.t | Const_b0 of tag | Const_bn of tag * structured_constant array | Const_univ_level of Univ.Level.t - | Const_type of Univ.Universe.t type reloc_table = (tag * int) array type annot_switch = {ci : case_info; rtbl : reloc_table; tailcall : bool; max_stack_size : int} +let rec eq_structured_constant c1 c2 = match c1, c2 with +| Const_sort s1, Const_sort s2 -> Sorts.equal s1 s2 +| Const_sort _, _ -> false +| Const_ind i1, Const_ind i2 -> eq_ind i1 i2 +| Const_ind _, _ -> false +| Const_proj p1, Const_proj p2 -> Constant.equal p1 p2 +| Const_proj _, _ -> false +| Const_b0 t1, Const_b0 t2 -> Int.equal t1 t2 +| Const_b0 _, _ -> false +| Const_bn (t1, a1), Const_bn (t2, a2) -> + Int.equal t1 t2 && CArray.equal eq_structured_constant a1 a2 +| Const_bn _, _ -> false +| Const_univ_level l1 , Const_univ_level l2 -> Univ.Level.equal l1 l2 +| Const_univ_level _ , _ -> false + +let rec hash_structured_constant c = + let open Hashset.Combine in + match c with + | Const_sort s -> combinesmall 1 (Sorts.hash s) + | Const_ind i -> combinesmall 2 (ind_hash i) + | Const_proj p -> combinesmall 3 (Constant.hash p) + | Const_b0 t -> combinesmall 4 (Int.hash t) + | Const_bn (t, a) -> + let fold h c = combine h (hash_structured_constant c) in + let h = Array.fold_left fold 0 a in + combinesmall 5 (combine (Int.hash t) h) + | Const_univ_level l -> combinesmall 6 (Univ.Level.hash l) + +let eq_annot_switch asw1 asw2 = + let eq_ci ci1 ci2 = + eq_ind ci1.ci_ind ci2.ci_ind && + Int.equal ci1.ci_npar ci2.ci_npar && + CArray.equal Int.equal ci1.ci_cstr_ndecls ci2.ci_cstr_ndecls + in + let eq_rlc (i1, j1) (i2, j2) = Int.equal i1 i2 && Int.equal j1 j2 in + eq_ci asw1.ci asw2.ci && + CArray.equal eq_rlc asw1.rtbl asw2.rtbl && + (asw1.tailcall : bool) == asw2.tailcall + +let hash_annot_switch asw = + let open Hashset.Combine in + let h1 = Constr.case_info_hash asw.ci in + let h2 = Array.fold_left (fun h (t, i) -> combine3 h t i) 0 asw.rtbl in + let h3 = if asw.tailcall then 1 else 0 in + combine3 h1 h2 h3 + module Label = struct type t = int @@ -135,6 +182,7 @@ type fv_elem = | FVnamed of Id.t | FVrel of int | FVuniv_var of int + | FVevar of Evar.t type fv = fv_elem array @@ -149,12 +197,15 @@ type t = fv_elem let compare e1 e2 = match e1, e2 with | FVnamed id1, FVnamed id2 -> Id.compare id1 id2 -| FVnamed _, _ -> -1 +| FVnamed _, (FVrel _ | FVuniv_var _ | FVevar _) -> -1 | FVrel _, FVnamed _ -> 1 | FVrel r1, FVrel r2 -> Int.compare r1 r2 -| FVrel _, FVuniv_var _ -> -1 +| FVrel _, (FVuniv_var _ | FVevar _) -> -1 | FVuniv_var i1, FVuniv_var i2 -> Int.compare i1 i2 -| FVuniv_var i1, _ -> 1 +| FVuniv_var i1, (FVnamed _ | FVrel _) -> 1 +| FVuniv_var i1, FVevar _ -> -1 +| FVevar _, (FVnamed _ | FVrel _ | FVuniv_var _) -> 1 +| FVevar e1, FVevar e2 -> Evar.compare e1 e2 end @@ -187,20 +238,19 @@ open Util let pp_sort s = let open Sorts in - match family s with - | InSet -> str "Set" - | InProp -> str "Prop" - | InType -> str "Type" + match s with + | Prop Null -> str "Prop" + | Prop Pos -> str "Set" + | Type u -> str "Type@{" ++ Univ.pr_uni u ++ str "}" let rec pp_struct_const = function - | Const_sorts s -> pp_sort s + | Const_sort s -> pp_sort s | Const_ind (mind, i) -> MutInd.print mind ++ str"#" ++ int i | Const_proj p -> Constant.print p | Const_b0 i -> int i | Const_bn (i,t) -> int i ++ surround (prvect_with_sep pr_comma pp_struct_const t) | Const_univ_level l -> Univ.Level.pr l - | Const_type u -> str "Type@{" ++ Univ.pr_uni u ++ str "}" let pp_lbl lbl = str "L" ++ int lbl @@ -208,6 +258,7 @@ let pp_fv_elem = function | FVnamed id -> str "FVnamed(" ++ Id.print id ++ str ")" | FVrel i -> str "Rel(" ++ int i ++ str ")" | FVuniv_var v -> str "FVuniv(" ++ int v ++ str ")" + | FVevar e -> str "FVevar(" ++ int (Evar.repr e) ++ str ")" let rec pp_instr i = match i with @@ -301,16 +352,3 @@ and pp_bytecodes c = pp_bytecodes l1 ++ pp_bytecodes l2 ++ pp_bytecodes c | i :: c -> pp_instr i ++ fnl () ++ pp_bytecodes c - -(*spiwack: moved this type in this file because I needed it for - retroknowledge which can't depend from cbytegen *) -type block = - | Bconstr of constr - | Bstrconst of structured_constant - | Bmakeblock of int * block array - | Bconstruct_app of int * int * int * block array - (* tag , nparams, arity *) - | Bspecial of (comp_env -> block array -> int -> bytecodes -> bytecodes) * block array - (* spiwack: compilation given by a function *) - (* compilation function (see get_vm_constant_dynamic_info in - retroknowledge.mli for more info) , argument array *) diff --git a/kernel/cbytecodes.mli b/kernel/cbytecodes.mli index 5d37a5840b..03b6bc619d 100644 --- a/kernel/cbytecodes.mli +++ b/kernel/cbytecodes.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* $Id$ *) @@ -26,13 +28,12 @@ val cofix_evaluated_tag : tag val last_variant_tag : tag type structured_constant = - | Const_sorts of Sorts.t + | Const_sort of Sorts.t | Const_ind of inductive | Const_proj of Constant.t | Const_b0 of tag | Const_bn of tag * structured_constant array | Const_univ_level of Univ.Level.t - | Const_type of Univ.Universe.t val pp_struct_const : structured_constant -> Pp.t @@ -41,6 +42,12 @@ type reloc_table = (tag * int) array type annot_switch = {ci : case_info; rtbl : reloc_table; tailcall : bool; max_stack_size : int} +val eq_structured_constant : structured_constant -> structured_constant -> bool +val hash_structured_constant : structured_constant -> int + +val eq_annot_switch : annot_switch -> annot_switch -> bool +val hash_annot_switch : annot_switch -> int + module Label : sig type t = int @@ -132,6 +139,7 @@ type fv_elem = FVnamed of Id.t | FVrel of int | FVuniv_var of int +| FVevar of Evar.t type fv = fv_elem array @@ -165,14 +173,3 @@ type comp_env = { val pp_bytecodes : bytecodes -> Pp.t val pp_fv_elem : fv_elem -> Pp.t - -(*spiwack: moved this here because I needed it for retroknowledge *) -type block = - | Bconstr of constr - | Bstrconst of structured_constant - | Bmakeblock of int * block array - | Bconstruct_app of int * int * int * block array - (** tag , nparams, arity *) - | Bspecial of (comp_env -> block array -> int -> bytecodes -> bytecodes) * block array - (** compilation function (see get_vm_constant_dynamic_info in - retroknowledge.mli for more info) , argument array *) diff --git a/kernel/cbytegen.ml b/kernel/cbytegen.ml index 5dab2932d7..0766f49b39 100644 --- a/kernel/cbytegen.ml +++ b/kernel/cbytegen.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Author: Benjamin Grégoire as part of the bytecode-based virtual reduction @@ -14,6 +16,8 @@ open Util open Names open Cbytecodes open Cemitcodes +open Cinstr +open Clambda open Constr open Declarations open Pre_env @@ -96,7 +100,7 @@ module Config = struct let stack_safety_margin = 15 end -type argument = ArgConstr of Constr.t | ArgUniv of Univ.Level.t +type argument = ArgLambda of lambda | ArgUniv of Univ.Level.t let empty_fv = { size= 0; fv_rev = []; fv_fwd = FvMap.empty } let push_fv d e = { @@ -255,6 +259,15 @@ let pos_universe_var i r sz = r.in_env := push_fv db env; Kenvacc(r.offset + pos) +let pos_evar evk r = + let env = !(r.in_env) in + let cid = FVevar evk in + try Kenvacc(r.offset + find_at cid env) + with Not_found -> + let pos = env.size in + r.in_env := push_fv cid env; + Kenvacc (r.offset + pos) + (*i Examination of the continuation *) (* Discard all instructions up to the next label. *) @@ -356,13 +369,6 @@ let cont_cofix arity = Kreturn (arity+2) ] -(*i Global environment *) - -let global_env = ref empty_env - -let set_global_env env = global_env := env - - (* Code of closures *) let fun_code = ref [] @@ -370,31 +376,8 @@ let init_fun_code () = fun_code := [] (* Compilation of constructors and inductive types *) - -(* Limitation due to OCaml's representation of non-constant - constructors: limited to 245 + 1 (0 tag) cases. *) - -exception TooLargeInductive of Id.t - -let max_nb_const = 0x1000000 -let max_nb_block = 0x1000000 + last_variant_tag - 1 - -let str_max_constructors = - Format.sprintf - " which has more than %i constant constructors or more than %i non-constant constructors" max_nb_const max_nb_block - -let check_compilable ib = - - if not (ib.mind_nb_args <= max_nb_block && ib.mind_nb_constant <= max_nb_const) then - raise (TooLargeInductive ib.mind_typename) - (* Inv: arity > 0 *) -let const_bn tag args = - if tag < last_variant_tag then Const_bn(tag, args) - else - Const_bn(last_variant_tag, Array.append [|Const_b0 (tag - last_variant_tag) |] args) - (* If [tag] hits the OCaml limitation for non constant constructors, we switch to another representation for the remaining constructors: @@ -415,126 +398,9 @@ let code_makeblock ~stack_size ~arity ~tag cont = Kpush :: nest_block tag arity cont end -(* [code_construct] compiles an abstracted constructor dropping parameters and - updates [fun_code] *) -(* Inv : nparam + arity > 0 *) -let code_construct tag nparams arity cont = - let f_cont = - add_pop nparams - (if Int.equal arity 0 then - [Kconst (Const_b0 tag); Kreturn 0] - else if tag < last_variant_tag then - [Kacc 0; Kpop 1; Kmakeblock(arity, tag); Kreturn 0] - else - nest_block tag arity [Kreturn 0]) - in - let lbl = Label.create() in - (* No need to grow the stack here, as the function does not push stuff. *) - fun_code := [Ksequence (add_grab (nparams+arity) lbl f_cont,!fun_code)]; - Kclosure(lbl,0) :: cont - -let get_strcst = function - | Bstrconst sc -> sc - | _ -> raise Not_found - -let rec str_const c = - match kind c with - | Sort s -> Bstrconst (Const_sorts s) - | Cast(c,_,_) -> str_const c - | App(f,args) -> - begin - match kind f with - | Construct(((kn,j),i),u) -> - begin - let oib = lookup_mind kn !global_env in - let oip = oib.mind_packets.(j) in - let () = check_compilable oip in - let tag,arity = oip.mind_reloc_tbl.(i-1) in - let nparams = oib.mind_nparams in - if Int.equal (nparams + arity) (Array.length args) then - (* spiwack: *) - (* 1/ tries to compile the constructor in an optimal way, - it is supposed to work only if the arguments are - all fully constructed, fails with Cbytecodes.NotClosed. - it can also raise Not_found when there is no special - treatment for this constructor - for instance: tries to to compile an integer of the - form I31 D1 D2 ... D31 to [D1D2...D31] as - a processor number (a caml number actually) *) - try - try - Bstrconst (Retroknowledge.get_vm_constant_static_info - (!global_env).retroknowledge - f args) - with NotClosed -> - (* 2/ if the arguments are not all closed (this is - expectingly (and it is currently the case) the only - reason why this exception is raised) tries to - give a clever, run-time behavior to the constructor. - Raises Not_found if there is no special treatment - for this integer. - this is done in a lazy fashion, using the constructor - Bspecial because it needs to know the continuation - and such, which can't be done at this time. - for instance, for int31: if one of the digit is - not closed, it's not impossible that the number - gets fully instanciated at run-time, thus to ensure - uniqueness of the representation in the vm - it is necessary to try and build a caml integer - during the execution *) - let rargs = Array.sub args nparams arity in - let b_args = Array.map str_const rargs in - Bspecial ((Retroknowledge.get_vm_constant_dynamic_info - (!global_env).retroknowledge - f), - b_args) - with Not_found -> - (* 3/ if no special behavior is available, then the compiler - falls back to the normal behavior *) - if Int.equal arity 0 then Bstrconst(Const_b0 tag) - else - let rargs = Array.sub args nparams arity in - let b_args = Array.map str_const rargs in - try - let sc_args = Array.map get_strcst b_args in - Bstrconst(const_bn tag sc_args) - with Not_found -> - Bmakeblock(tag,b_args) - else - let b_args = Array.map str_const args in - (* spiwack: tries first to apply the run-time compilation - behavior of the constructor, as in 2/ above *) - try - Bspecial ((Retroknowledge.get_vm_constant_dynamic_info - (!global_env).retroknowledge - f), - b_args) - with Not_found -> - Bconstruct_app(tag, nparams, arity, b_args) - end - | _ -> Bconstr c - end - | Ind (ind,u) when Univ.Instance.is_empty u -> - Bstrconst (Const_ind ind) - | Construct (((kn,j),i),_) -> - begin - (* spiwack: tries first to apply the run-time compilation - behavior of the constructor, as in 2/ above *) - try - Bspecial ((Retroknowledge.get_vm_constant_dynamic_info - (!global_env).retroknowledge - c), - [| |]) - with Not_found -> - let oib = lookup_mind kn !global_env in - let oip = oib.mind_packets.(j) in - let () = check_compilable oip in - let num,arity = oip.mind_reloc_tbl.(i-1) in - let nparams = oib.mind_nparams in - if Int.equal (nparams + arity) 0 then Bstrconst(Const_b0 num) - else Bconstruct_app(num,nparams,arity,[||]) - end - | _ -> Bconstr c +let compile_structured_constant reloc sc sz cont = + set_max_stack_size sz; + Kconst sc :: cont (* compiling application *) let comp_args comp_expr reloc args sz cont = @@ -545,9 +411,10 @@ let comp_args comp_expr reloc args sz cont = done; !c -(* Precondition: args not empty *) let comp_app comp_fun comp_arg reloc f args sz cont = let nargs = Array.length args in + if Int.equal nargs 0 then comp_fun reloc f sz cont + else match is_tailcall cont with | Some k -> comp_args comp_arg reloc args sz @@ -571,6 +438,7 @@ let compile_fv_elem reloc fv sz cont = | FVrel i -> pos_rel i reloc sz :: cont | FVnamed id -> pos_named id reloc :: cont | FVuniv_var i -> pos_universe_var i reloc sz :: cont + | FVevar evk -> pos_evar evk reloc :: cont let rec compile_fv reloc l sz cont = match l with @@ -593,112 +461,111 @@ let rec get_alias env kn = | BCalias kn' -> get_alias env kn' | _ -> kn) +(* spiwack: additional function which allow different part of compilation of the + 31-bit integers *) + +let make_areconst n else_lbl cont = + if n <= 0 then + cont + else + Kareconst (n, else_lbl)::cont + (* sz is the size of the local stack *) -let rec compile_constr reloc c sz cont = +let rec compile_lam env reloc lam sz cont = set_max_stack_size sz; - match kind c with - | Meta _ -> invalid_arg "Cbytegen.compile_constr : Meta" - | Evar _ -> invalid_arg "Cbytegen.compile_constr : Evar" - | Proj (p,c) -> - let kn = Projection.constant p in - let cb = lookup_constant kn !global_env in - let pb = Option.get cb.const_proj in - let n = pb.proj_arg in - compile_constr reloc c sz (Kproj (n,kn) :: cont) - - | Cast(c,_,_) -> compile_constr reloc c sz cont - - | Rel i -> pos_rel i reloc sz :: cont - | Var id -> pos_named id reloc :: cont - | Const (kn,u) -> compile_const reloc kn u [||] sz cont - | Ind (ind,u) -> - let bcst = Bstrconst (Const_ind ind) in + match lam with + | Lrel(_, i) -> pos_rel i reloc sz :: cont + + | Lval v -> compile_structured_constant reloc v sz cont + + | Lproj (n,kn,arg) -> + compile_lam env reloc arg sz (Kproj (n,kn) :: cont) + + | Lvar id -> pos_named id reloc :: cont + + | Levar (evk, args) -> + if Array.is_empty args then + compile_fv_elem reloc (FVevar evk) sz cont + else + comp_app compile_fv_elem (compile_lam env) reloc (FVevar evk) args sz cont + + | Lconst (kn,u) -> compile_constant env reloc kn u [||] sz cont + + | Lind (ind,u) -> if Univ.Instance.is_empty u then - compile_str_cst reloc bcst sz cont - else - comp_app compile_str_cst compile_universe reloc - bcst - (Univ.Instance.to_array u) - sz - cont - | Sort (Sorts.Prop _) | Construct _ -> - compile_str_cst reloc (str_const c) sz cont - | Sort (Sorts.Type u) -> - (* We separate global and local universes in [u]. The former will be part - of the structured constant, while the later (if any) will be applied as - arguments. *) - let open Univ in begin - let levels = Universe.levels u in - let global_levels = - LSet.filter (fun x -> Level.var_index x = None) levels - in - let local_levels = - List.map_filter (fun x -> Level.var_index x) - (LSet.elements levels) - in + compile_structured_constant reloc (Const_ind ind) sz cont + else comp_app compile_structured_constant compile_universe reloc + (Const_ind ind) (Univ.Instance.to_array u) sz cont + + | Lsort (Sorts.Prop _ as s) -> + compile_structured_constant reloc (Const_sort s) sz cont + | Lsort (Sorts.Type u) -> + (* We separate global and local universes in [u]. The former will be part + of the structured constant, while the later (if any) will be applied as + arguments. *) + let open Univ in begin + let u,s = Universe.compact u in (* We assume that [Universe.type0m] is a neutral element for [Universe.sup] *) - let uglob = - LSet.fold (fun lvl u -> Universe.sup u (Universe.make lvl)) global_levels Universe.type0m + let compile_get_univ reloc idx sz cont = + set_max_stack_size sz; + compile_fv_elem reloc (FVuniv_var idx) sz cont in - if local_levels = [] then - compile_str_cst reloc (Bstrconst (Const_sorts (Sorts.Type uglob))) sz cont + if List.is_empty s then + compile_structured_constant reloc (Const_sort (Sorts.Type u)) sz cont else - let compile_get_univ reloc idx sz cont = - set_max_stack_size sz; - compile_fv_elem reloc (FVuniv_var idx) sz cont - in - comp_app compile_str_cst compile_get_univ reloc - (Bstrconst (Const_type u)) (Array.of_list local_levels) sz cont + comp_app compile_structured_constant compile_get_univ reloc + (Const_sort (Sorts.Type u)) (Array.of_list s) sz cont end - | LetIn(_,xb,_,body) -> - compile_constr reloc xb sz - (Kpush :: - (compile_constr (push_local sz reloc) body (sz+1) (add_pop 1 cont))) - | Prod(id,dom,codom) -> - let cont1 = - Kpush :: compile_constr reloc dom (sz+1) (Kmakeprod :: cont) in - compile_constr reloc (mkLambda(id,dom,codom)) sz cont1 - | Lambda _ -> - let params, body = Term.decompose_lam c in - let arity = List.length params in - let r_fun = comp_env_fun arity in - let lbl_fun = Label.create() in - let cont_fun = - ensure_stack_capacity (compile_constr r_fun body arity) [Kreturn arity] - in - fun_code := [Ksequence(add_grab arity lbl_fun cont_fun,!fun_code)]; - let fv = fv r_fun in - compile_fv reloc fv.fv_rev sz (Kclosure(lbl_fun,fv.size) :: cont) - - | App(f,args) -> - begin - match kind f with - | Construct _ -> compile_str_cst reloc (str_const c) sz cont - | Const (kn,u) -> compile_const reloc kn u args sz cont - | _ -> comp_app compile_constr compile_constr reloc f args sz cont - end - | Fix ((rec_args,init),(_,type_bodies,rec_bodies)) -> - let ndef = Array.length type_bodies in + + | Llet (id,def,body) -> + compile_lam env reloc def sz + (Kpush :: + compile_lam env (push_local sz reloc) body (sz+1) (add_pop 1 cont)) + + | Lprod (dom,codom) -> + let cont1 = + Kpush :: compile_lam env reloc dom (sz+1) (Kmakeprod :: cont) in + compile_lam env reloc codom sz cont1 + + | Llam (ids,body) -> + let arity = Array.length ids in + let r_fun = comp_env_fun arity in + let lbl_fun = Label.create() in + let cont_fun = + ensure_stack_capacity (compile_lam env r_fun body arity) [Kreturn arity] + in + fun_code := [Ksequence(add_grab arity lbl_fun cont_fun,!fun_code)]; + let fv = fv r_fun in + compile_fv reloc fv.fv_rev sz (Kclosure(lbl_fun,fv.size) :: cont) + + | Lapp (f, args) -> + begin match f with + | Lconst (kn,u) -> compile_constant env reloc kn u args sz cont + | _ -> comp_app (compile_lam env) (compile_lam env) reloc f args sz cont + end + + | Lfix ((rec_args, init), (decl, types, bodies)) -> + let ndef = Array.length types in let rfv = ref empty_fv in let lbl_types = Array.make ndef Label.no in let lbl_bodies = Array.make ndef Label.no in - (* Compilation des types *) + (* Compiling types *) let env_type = comp_env_fix_type rfv in for i = 0 to ndef - 1 do let fcode = - ensure_stack_capacity (compile_constr env_type type_bodies.(i) 0) [Kstop] + ensure_stack_capacity (compile_lam env env_type types.(i) 0) [Kstop] in - let lbl,fcode = label_code fcode in - lbl_types.(i) <- lbl; + let lbl,fcode = label_code fcode in + lbl_types.(i) <- lbl; fun_code := [Ksequence(fcode,!fun_code)] done; (* Compiling bodies *) for i = 0 to ndef - 1 do - let params,body = Term.decompose_lam rec_bodies.(i) in - let arity = List.length params in + let params,body = decompose_Llam bodies.(i) in + let arity = Array.length params in let env_body = comp_env_fix ndef i arity rfv in - let cont1 = - ensure_stack_capacity (compile_constr env_body body arity) [Kreturn arity] + let cont1 = + ensure_stack_capacity (compile_lam env env_body body arity) [Kreturn arity] in let lbl = Label.create () in lbl_bodies.(i) <- lbl; @@ -709,8 +576,9 @@ let rec compile_constr reloc c sz cont = compile_fv reloc fv.fv_rev sz (Kclosurerec(fv.size,init,lbl_types,lbl_bodies) :: cont) - | CoFix(init,(_,type_bodies,rec_bodies)) -> - let ndef = Array.length type_bodies in + + | Lcofix(init, (decl,types,bodies)) -> + let ndef = Array.length types in let lbl_types = Array.make ndef Label.no in let lbl_bodies = Array.make ndef Label.no in (* Compiling types *) @@ -718,22 +586,22 @@ let rec compile_constr reloc c sz cont = let env_type = comp_env_cofix_type ndef rfv in for i = 0 to ndef - 1 do let fcode = - ensure_stack_capacity (compile_constr env_type type_bodies.(i) 0) [Kstop] + ensure_stack_capacity (compile_lam env env_type types.(i) 0) [Kstop] in - let lbl,fcode = label_code fcode in - lbl_types.(i) <- lbl; + let lbl,fcode = label_code fcode in + lbl_types.(i) <- lbl; fun_code := [Ksequence(fcode,!fun_code)] done; (* Compiling bodies *) for i = 0 to ndef - 1 do - let params,body = Term.decompose_lam rec_bodies.(i) in - let arity = List.length params in + let params,body = decompose_Llam bodies.(i) in + let arity = Array.length params in let env_body = comp_env_cofix ndef arity rfv in let lbl = Label.create () in let comp arity = (* 4 stack slots are needed to update the cofix when forced *) set_max_stack_size (arity + 4); - compile_constr env_body body (arity+1) (cont_cofix arity) + compile_lam env env_body body (arity+1) (cont_cofix arity) in let cont = ensure_stack_capacity comp arity in lbl_bodies.(i) <- lbl; @@ -744,33 +612,34 @@ let rec compile_constr reloc c sz cont = compile_fv reloc fv.fv_rev sz (Kclosurecofix(fv.size, init, lbl_types, lbl_bodies) :: cont) - | Case(ci,t,a,branchs) -> + + | Lcase(ci,rtbl,t,a,branches) -> let ind = ci.ci_ind in - let mib = lookup_mind (fst ind) !global_env in + let mib = lookup_mind (fst ind) env in let oib = mib.mind_packets.(snd ind) in - let () = check_compilable oib in - let tbl = oib.mind_reloc_tbl in let lbl_consts = Array.make oib.mind_nb_constant Label.no in let nallblock = oib.mind_nb_args + 1 in (* +1 : accumulate *) + let nconst = Array.length branches.constant_branches in let nblock = min nallblock (last_variant_tag + 1) in let lbl_blocks = Array.make nblock Label.no in let neblock = max 0 (nallblock - last_variant_tag) in let lbl_eblocks = Array.make neblock Label.no in - let branch1,cont = make_branch cont in - (* Compiling return type *) + let branch1, cont = make_branch cont in + (* Compilation of the return type *) let fcode = - ensure_stack_capacity (compile_constr reloc t sz) [Kpop sz; Kstop] + ensure_stack_capacity (compile_lam env reloc t sz) [Kpop sz; Kstop] in let lbl_typ,fcode = label_code fcode in fun_code := [Ksequence(fcode,!fun_code)]; - (* Compiling branches *) + (* Compilation of the branches *) let lbl_sw = Label.create () in let sz_b,branch,is_tailcall = - match branch1 with - | Kreturn k -> - assert (Int.equal k sz) ; - sz, branch1, true - | _ -> sz+3, Kjump, false + match branch1 with + | Kreturn k -> + assert (Int.equal k sz) ; + sz, branch1, true + | Kbranch _ -> sz+3, Kjump, false + | _ -> assert false in let c = ref cont in @@ -781,29 +650,26 @@ let rec compile_constr reloc c sz cont = Kpush :: Kfield 0 :: Kswitch(lbl_eblocks, [||]) :: !c) in lbl_blocks.(last_variant_tag) <- lbl_b; c := code_b - end; - - (* Compiling regular constructor branches *) - for i = 0 to Array.length tbl - 1 do - let tag, arity = tbl.(i) in - if Int.equal arity 0 then - let lbl_b,code_b = - label_code(compile_constr reloc branchs.(i) sz_b (branch :: !c)) in - lbl_consts.(tag) <- lbl_b; - c := code_b - else - let args, body = Term.decompose_lam branchs.(i) in - let nargs = List.length args in - - let code_b = - if Int.equal nargs arity then - compile_constr (push_param arity sz_b reloc) - body (sz_b+arity) (add_pop arity (branch :: !c)) - else - let sz_appterm = if is_tailcall then sz_b + arity else arity in - compile_constr reloc branchs.(i) (sz_b+arity) - (Kappterm(arity,sz_appterm) :: !c) in - let code_b = + end; + + (* Compilation of constant branches *) + for i = nconst - 1 downto 0 do + let aux = + compile_lam env reloc branches.constant_branches.(i) sz_b (branch::!c) + in + let lbl_b,code_b = label_code aux in + lbl_consts.(i) <- lbl_b; + c := code_b + done; + (* -1 for accu branch *) + for i = nallblock - 2 downto 0 do + let tag = i + 1 in + let (ids, body) = branches.nonconstant_branches.(i) in + let arity = Array.length ids in + let code_b = + compile_lam env (push_param arity sz_b reloc) + body (sz_b+arity) (add_pop arity (branch::!c)) in + let code_b = if tag < last_variant_tag then begin set_max_stack_size (sz_b + arity); Kpushfields arity :: code_b @@ -812,15 +678,15 @@ let rec compile_constr reloc c sz cont = set_max_stack_size (sz_b + arity + 1); Kacc 0::Kpop 1::Kpushfields(arity+1)::Kpop 1::code_b end - in - let lbl_b,code_b = label_code code_b in - if tag < last_variant_tag then lbl_blocks.(tag) <- lbl_b + in + let lbl_b, code_b = label_code code_b in + if tag < last_variant_tag then lbl_blocks.(tag) <- lbl_b else lbl_eblocks.(tag - last_variant_tag) <- lbl_b; - c := code_b + c := code_b done; let annot = - {ci = ci; rtbl = tbl; tailcall = is_tailcall; + {ci = ci; rtbl = rtbl; tailcall = is_tailcall; max_stack_size = !max_stack_size - sz} in @@ -839,38 +705,50 @@ let rec compile_constr reloc c sz cont = | Kbranch lbl -> Kpush_retaddr lbl :: !c | _ -> !c in - compile_constr reloc a sz - (try - let entry = mkInd ind in - Retroknowledge.get_vm_before_match_info (!global_env).retroknowledge - entry code_sw - with Not_found -> - code_sw) - -and compile_str_cst reloc sc sz cont = - set_max_stack_size sz; - match sc with - | Bconstr c -> compile_constr reloc c sz cont - | Bstrconst sc -> Kconst sc :: cont - | Bmakeblock(tag,args) -> - let arity = Array.length args in - let cont = code_makeblock ~stack_size:(sz+arity-1) ~arity ~tag cont in - comp_args compile_str_cst reloc args sz cont - | Bconstruct_app(tag,nparams,arity,args) -> - if Int.equal (Array.length args) 0 then - code_construct tag nparams arity cont - else - comp_app - (fun _ _ _ cont -> code_construct tag nparams arity cont) - compile_str_cst reloc () args sz cont - | Bspecial (comp_fx, args) -> comp_fx reloc args sz cont + compile_lam env reloc a sz code_sw + + | Lmakeblock (tag,args) -> + let arity = Array.length args in + let cont = code_makeblock ~stack_size:(sz+arity-1) ~arity ~tag cont in + comp_args (compile_lam env) reloc args sz cont + + | Lprim (kn, ar, op, args) -> + op_compilation env ar op kn reloc args sz cont + + | Luint v -> + (match v with + | UintVal i -> compile_structured_constant reloc (Const_b0 (Uint31.to_int i)) sz cont + | UintDigits ds -> + let nargs = Array.length ds in + if Int.equal nargs 31 then + let (escape,labeled_cont) = make_branch cont in + let else_lbl = Label.create() in + comp_args (compile_lam env) reloc ds sz + ( Kisconst else_lbl::Kareconst(30,else_lbl)::Kcompint31::escape::Klabel else_lbl::Kmakeblock(31, 1)::labeled_cont) + else + let code_construct cont = (* spiwack: variant of the global code_construct + which handles dynamic compilation of + integers *) + let f_cont = + let else_lbl = Label.create () in + [Kacc 0; Kpop 1; Kisconst else_lbl; Kareconst(30,else_lbl); + Kcompint31; Kreturn 0; Klabel else_lbl; Kmakeblock(31, 1); Kreturn 0] + in + let lbl = Label.create() in + fun_code := [Ksequence (add_grab 31 lbl f_cont,!fun_code)]; + Kclosure(lbl,0) :: cont + in + comp_app (fun _ _ _ cont -> code_construct cont) + (compile_lam env) reloc () ds sz cont + | UintDecomp t -> + let escape_lbl, labeled_cont = label_code cont in + compile_lam env reloc t sz ((Kisconst escape_lbl)::Kdecompint31::labeled_cont)) (* spiwack : compilation of constants with their arguments. Makes a special treatment with 31-bit integer addition *) and compile_get_global reloc (kn,u) sz cont = set_max_stack_size sz; - let kn = get_alias !global_env kn in if Univ.Instance.is_empty u then Kgetglobal kn :: cont else @@ -880,41 +758,67 @@ and compile_get_global reloc (kn,u) sz cont = and compile_universe reloc uni sz cont = set_max_stack_size sz; match Univ.Level.var_index uni with - | None -> Kconst (Const_univ_level uni) :: cont + | None -> compile_structured_constant reloc (Const_univ_level uni) sz cont | Some idx -> pos_universe_var idx reloc sz :: cont -and compile_const reloc kn u args sz cont = +and compile_constant env reloc kn u args sz cont = set_max_stack_size sz; + if Univ.Instance.is_empty u then + (* normal compilation *) + comp_app (fun _ _ sz cont -> + compile_get_global reloc (kn,u) sz cont) + (compile_lam env) reloc () args sz cont + else + let compile_arg reloc constr_or_uni sz cont = + match constr_or_uni with + | ArgLambda t -> compile_lam env reloc t sz cont + | ArgUniv uni -> compile_universe reloc uni sz cont + in + let u = Univ.Instance.to_array u in + let lu = Array.length u in + let all = + Array.init (lu + Array.length args) + (fun i -> if i < lu then ArgUniv u.(i) else ArgLambda args.(i-lu)) + in + comp_app (fun _ _ _ cont -> Kgetglobal kn :: cont) + compile_arg reloc () all sz cont + +(*template for n-ary operation, invariant: n>=1, + the operations does the following : + 1/ checks if all the arguments are constants (i.e. non-block values) + 2/ if they are, uses the "op" instruction to execute + 3/ if at least one is not, branches to the normal behavior: + Kgetglobal (get_alias !global_env kn) *) +and op_compilation env n op = + let code_construct reloc kn sz cont = + let f_cont = + let else_lbl = Label.create () in + Kareconst(n, else_lbl):: Kacc 0:: Kpop 1:: + op:: Kreturn 0:: Klabel else_lbl:: + (* works as comp_app with nargs = n and tailcall cont [Kreturn 0]*) + compile_get_global reloc kn sz ( + Kappterm(n, n):: []) (* = discard_dead_code [Kreturn 0] *) + in + let lbl = Label.create () in + fun_code := [Ksequence (add_grab n lbl f_cont, !fun_code)]; + Kclosure(lbl, 0)::cont + in + fun kn reloc args sz cont -> let nargs = Array.length args in - (* spiwack: checks if there is a specific way to compile the constant - if there is not, Not_found is raised, and the function - falls back on its normal behavior *) - try - Retroknowledge.get_vm_compiling_info (!global_env).retroknowledge - (mkConstU (kn,u)) reloc args sz cont - with Not_found -> - if Int.equal nargs 0 then - compile_get_global reloc (kn,u) sz cont - else - if Univ.Instance.is_empty u then - (* normal compilation *) - comp_app (fun _ _ sz cont -> - compile_get_global reloc (kn,u) sz cont) - compile_constr reloc () args sz cont - else - let compile_arg reloc constr_or_uni sz cont = - match constr_or_uni with - | ArgConstr cst -> compile_constr reloc cst sz cont - | ArgUniv uni -> compile_universe reloc uni sz cont - in - let u = Univ.Instance.to_array u in - let lu = Array.length u in - let all = - Array.init (lu + Array.length args) - (fun i -> if i < lu then ArgUniv u.(i) else ArgConstr args.(i-lu)) - in - comp_app (fun _ _ _ cont -> Kgetglobal kn :: cont) - compile_arg reloc () all sz cont + if Int.equal nargs n then (*if it is a fully applied addition*) + let (escape, labeled_cont) = make_branch cont in + let else_lbl = Label.create () in + assert (n < 4); + comp_args (compile_lam env) reloc args sz + (Kisconst else_lbl::(make_areconst (n-1) else_lbl + (*Kaddint31::escape::Klabel else_lbl::Kpush::*) + (op::escape::Klabel else_lbl::Kpush:: + (* works as comp_app with nargs < 4 and non-tailcall cont*) + compile_get_global reloc kn (sz+n) (Kapply n::labeled_cont)))) + else + comp_app (fun reloc _ sz cont -> code_construct reloc kn sz cont) + (compile_lam env) reloc () args sz cont + let is_univ_copy max u = let u = Univ.Instance.to_array u in @@ -937,33 +841,29 @@ let dump_bytecodes init code fvs = prlist_with_sep (fun () -> str "; ") pp_fv_elem fvs ++ fnl ()) -let compile fail_on_error ?universes:(universes=0) env c = - set_global_env env; +let compile ~fail_on_error ?universes:(universes=0) env c = init_fun_code (); Label.reset_label_counter (); let cont = [Kstop] in try let reloc, init_code = if Int.equal universes 0 then + let lam = lambda_of_constr ~optimize:true env c in let reloc = empty_comp_env () in - reloc, ensure_stack_capacity (compile_constr reloc c 0) cont + reloc, ensure_stack_capacity (compile_lam env reloc lam 0) cont else (* We are going to generate a lambda, but merge the universe closure * with the function closure if it exists. *) + let lam = lambda_of_constr ~optimize:true env c in + let params, body = decompose_Llam lam in + let arity = Array.length params in let reloc = empty_comp_env () in - let arity , body = - match kind c with - | Lambda _ -> - let params, body = Term.decompose_lam c in - List.length params , body - | _ -> 0 , c - in let full_arity = arity + universes in let r_fun = comp_env_fun ~univs:universes arity in let lbl_fun = Label.create () in let cont_fun = - ensure_stack_capacity (compile_constr r_fun body full_arity) + ensure_stack_capacity (compile_lam env r_fun body full_arity) [Kreturn full_arity] in fun_code := [Ksequence(add_grab full_arity lbl_fun cont_fun,!fun_code)]; @@ -978,15 +878,12 @@ let compile fail_on_error ?universes:(universes=0) env c = (if !Flags.dump_bytecode then Feedback.msg_debug (dump_bytecodes init_code !fun_code fv)) ; Some (init_code,!fun_code, Array.of_list fv) - with TooLargeInductive tname -> + with TooLargeInductive msg -> let fn = if fail_on_error then CErrors.user_err ?loc:None ~hdr:"compile" else - (fun x -> Feedback.msg_warning x) in - (Pp.(fn - (str "Cannot compile code for virtual machine as it uses inductive " ++ - Id.print tname ++ str str_max_constructors)); - None) + (fun x -> Feedback.msg_warning x) in + fn msg; None -let compile_constant_body fail_on_error env univs = function +let compile_constant_body ~fail_on_error env univs = function | Undef _ | OpaqueDef _ -> Some BCconstant | Def sb -> let body = Mod_subst.force_constr sb in @@ -1001,65 +898,13 @@ let compile_constant_body fail_on_error env univs = function let con= Constant.make1 (Constant.canonical kn') in Some (BCalias (get_alias env con)) | _ -> - let res = compile fail_on_error ~universes:instance_size env body in + let res = compile ~fail_on_error ~universes:instance_size env body in Option.map (fun x -> BCdefined (to_memory x)) res (* Shortcut of the previous function used during module strengthening *) let compile_alias kn = BCalias (Constant.make1 (Constant.canonical kn)) -(* spiwack: additional function which allow different part of compilation of the - 31-bit integers *) - -let make_areconst n else_lbl cont = - if n <= 0 then - cont - else - Kareconst (n, else_lbl)::cont - - -(* try to compile int31 as a const_b0. Succeed if all the arguments are closed - fails otherwise by raising NotClosed*) -let compile_structured_int31 fc args = - if not fc then raise Not_found else - Const_b0 - (Array.fold_left - (fun temp_i -> fun t -> match kind t with - | Construct ((_,d),_) -> 2*temp_i+d-1 - | _ -> raise NotClosed) - 0 args - ) - -(* this function is used for the compilation of the constructor of - the int31, it is used when it appears not fully applied, or - applied to at least one non-closed digit *) -let dynamic_int31_compilation fc reloc args sz cont = - if not fc then raise Not_found else - let nargs = Array.length args in - if Int.equal nargs 31 then - let (escape,labeled_cont) = make_branch cont in - let else_lbl = Label.create() in - comp_args compile_str_cst reloc args sz - ( Kisconst else_lbl::Kareconst(30,else_lbl)::Kcompint31::escape::Klabel else_lbl::Kmakeblock(31, 1)::labeled_cont) - else - let code_construct cont = (* spiwack: variant of the global code_construct - which handles dynamic compilation of - integers *) - let f_cont = - let else_lbl = Label.create () in - [Kacc 0; Kpop 1; Kisconst else_lbl; Kareconst(30,else_lbl); - Kcompint31; Kreturn 0; Klabel else_lbl; Kmakeblock(31, 1); Kreturn 0] - in - let lbl = Label.create() in - fun_code := [Ksequence (add_grab 31 lbl f_cont,!fun_code)]; - Kclosure(lbl,0) :: cont - in - if Int.equal nargs 0 then - code_construct cont - else - comp_app (fun _ _ _ cont -> code_construct cont) - compile_str_cst reloc () args sz cont - (*(* template compilation for 2ary operation, it probably possible to make a generic such function with arity abstracted *) let op2_compilation op = @@ -1097,47 +942,3 @@ let op2_compilation op = comp_app (fun _ _ _ cont -> code_construct normal cont) compile_constr reloc () args sz cont *) -(*template for n-ary operation, invariant: n>=1, - the operations does the following : - 1/ checks if all the arguments are constants (i.e. non-block values) - 2/ if they are, uses the "op" instruction to execute - 3/ if at least one is not, branches to the normal behavior: - Kgetglobal (get_alias !global_env kn) *) -let op_compilation n op = - let code_construct reloc kn sz cont = - let f_cont = - let else_lbl = Label.create () in - Kareconst(n, else_lbl):: Kacc 0:: Kpop 1:: - op:: Kreturn 0:: Klabel else_lbl:: - (* works as comp_app with nargs = n and tailcall cont [Kreturn 0]*) - compile_get_global reloc kn sz ( - Kappterm(n, n):: []) (* = discard_dead_code [Kreturn 0] *) - in - let lbl = Label.create () in - fun_code := [Ksequence (add_grab n lbl f_cont, !fun_code)]; - Kclosure(lbl, 0)::cont - in - fun kn fc reloc args sz cont -> - if not fc then raise Not_found else - let nargs = Array.length args in - if Int.equal nargs n then (*if it is a fully applied addition*) - let (escape, labeled_cont) = make_branch cont in - let else_lbl = Label.create () in - comp_args compile_constr reloc args sz - (Kisconst else_lbl::(make_areconst (n-1) else_lbl - (*Kaddint31::escape::Klabel else_lbl::Kpush::*) - (op::escape::Klabel else_lbl::Kpush:: - (* works as comp_app with nargs = n and non-tailcall cont*) - compile_get_global reloc kn sz (Kapply n::labeled_cont)))) - else if Int.equal nargs 0 then - code_construct reloc kn sz cont - else - comp_app (fun reloc _ sz cont -> code_construct reloc kn sz cont) - compile_constr reloc () args sz cont - -let int31_escape_before_match fc cont = - if not fc then - raise Not_found - else - let escape_lbl, labeled_cont = label_code cont in - (Kisconst escape_lbl)::Kdecompint31::labeled_cont diff --git a/kernel/cbytegen.mli b/kernel/cbytegen.mli index c117d3fb57..abab58b60b 100644 --- a/kernel/cbytegen.mli +++ b/kernel/cbytegen.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Cbytecodes @@ -13,38 +15,13 @@ open Declarations open Pre_env (** Should only be used for monomorphic terms *) -val compile : bool -> (* Fail on error with a nice user message, otherwise simply a warning *) +val compile : fail_on_error:bool -> ?universes:int -> env -> constr -> (bytecodes * bytecodes * fv) option (** init, fun, fv *) -val compile_constant_body : bool -> +val compile_constant_body : fail_on_error:bool -> env -> constant_universes -> constant_def -> body_code option (** Shortcut of the previous function used during module strengthening *) val compile_alias : Names.Constant.t -> body_code - -(** spiwack: this function contains the information needed to perform - the static compilation of int31 (trying and obtaining - a 31-bit integer in processor representation at compile time) *) -val compile_structured_int31 : bool -> constr array -> - structured_constant - -(** this function contains the information needed to perform - the dynamic compilation of int31 (trying and obtaining a - 31-bit integer in processor representation at runtime when - it failed at compile time *) -val dynamic_int31_compilation : bool -> comp_env -> - block array -> - int -> bytecodes -> bytecodes - -(*spiwack: template for the compilation n-ary operation, invariant: n>=1. - works as follow: checks if all the arguments are non-pointers - if they are applies the operation (second argument) if not - all of them are, returns to a coq definition (third argument) *) -val op_compilation : int -> instruction -> pconstant -> bool -> comp_env -> - constr array -> int -> bytecodes-> bytecodes - -(*spiwack: compiling function to insert dynamic decompilation before - matching integers (in case they are in processor representation) *) -val int31_escape_before_match : bool -> bytecodes -> bytecodes diff --git a/kernel/cemitcodes.ml b/kernel/cemitcodes.ml index eeea19c12b..14f4f27c09 100644 --- a/kernel/cemitcodes.ml +++ b/kernel/cemitcodes.ml @@ -1,27 +1,62 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Author: Benjamin Grégoire as part of the bytecode-based virtual reduction machine, Oct 2004 *) (* Extension: Arnaud Spiwack (support for native arithmetic), May 2005 *) +open Names open Term open Cbytecodes open Copcodes open Mod_subst +type emitcodes = String.t + +external tcode_of_code : Bytes.t -> int -> Vmvalues.tcode = "coq_tcode_of_code" + (* Relocation information *) type reloc_info = | Reloc_annot of annot_switch | Reloc_const of structured_constant | Reloc_getglobal of Names.Constant.t -type patch = reloc_info * int +let eq_reloc_info r1 r2 = match r1, r2 with +| Reloc_annot sw1, Reloc_annot sw2 -> eq_annot_switch sw1 sw2 +| Reloc_annot _, _ -> false +| Reloc_const c1, Reloc_const c2 -> eq_structured_constant c1 c2 +| Reloc_const _, _ -> false +| Reloc_getglobal c1, Reloc_getglobal c2 -> Constant.equal c1 c2 +| Reloc_getglobal _, _ -> false + +let hash_reloc_info r = + let open Hashset.Combine in + match r with + | Reloc_annot sw -> combinesmall 1 (hash_annot_switch sw) + | Reloc_const c -> combinesmall 2 (hash_structured_constant c) + | Reloc_getglobal c -> combinesmall 3 (Constant.hash c) + +module RelocTable = Hashtbl.Make(struct + type t = reloc_info + let equal = eq_reloc_info + let hash = hash_reloc_info +end) + +(** We use arrays for on-disk representation. On 32-bit machines, this means we + can only have a maximum amount of about 4.10^6 relocations, which seems + quite a lot, but potentially reachable if e.g. compiling big proofs. This + would prevent VM computing with these terms on 32-bit architectures. Maybe + we should use a more robust data structure? *) +type patches = { + reloc_infos : (reloc_info * int array) array; +} let patch_char4 buff pos c1 c2 c3 c4 = Bytes.unsafe_set buff pos c1; @@ -29,40 +64,48 @@ let patch_char4 buff pos c1 c2 c3 c4 = Bytes.unsafe_set buff (pos + 2) c3; Bytes.unsafe_set buff (pos + 3) c4 -let patch buff (pos, n) = +let patch1 buff pos n = patch_char4 buff pos (Char.unsafe_chr n) (Char.unsafe_chr (n asr 8)) (Char.unsafe_chr (n asr 16)) (Char.unsafe_chr (n asr 24)) -(* val patch_int : emitcodes -> ((\*pos*\)int * int) list -> emitcodes *) -let patch_int buff patches = +let patch_int buff reloc = (* copy code *before* patching because of nested evaluations: the code we are patching might be called (and thus "concurrently" patched) and results in wrong results. Side-effects... *) let buff = Bytes.of_string buff in - let () = List.iter (fun p -> patch buff p) patches in - (* Note: we follow the apporach suggested by Gabriel Scherer in - PR#136 here, and use unsafe as we own buff. + let iter (reloc, npos) = Array.iter (fun pos -> patch1 buff pos reloc) npos in + let () = CArray.iter iter reloc in + buff - The crux of the question that avoids defining emitcodes just as a - Byte.t is the call to hcons in to_memory below. Even if disabling - this optimization has no visible time impact, test data shows - that the optimization is indeed triggered quite often so we - choose ugliness over altering the semantics. - - Handle with care. - *) - Bytes.unsafe_to_string buff +let patch buff pl f = + (** Order seems important here? *) + let reloc = CArray.map (fun (r, pos) -> (f r, pos)) pl.reloc_infos in + let buff = patch_int buff reloc in + tcode_of_code buff (Bytes.length buff) (* Buffering of bytecode *) -let out_buffer = ref(Bytes.create 1024) -and out_position = ref 0 +type label_definition = + Label_defined of int + | Label_undefined of (int * int) list -let out_word b1 b2 b3 b4 = - let p = !out_position in - if p >= Bytes.length !out_buffer then begin - let len = Bytes.length !out_buffer in +type env = { + mutable out_buffer : Bytes.t; + mutable out_position : int; + mutable label_table : label_definition array; + (* le ieme element de la table = Label_defined n signifie que l'on a + deja rencontrer le label i et qu'il est a l'offset n. + = Label_undefined l signifie que l'on a + pas encore rencontrer ce label, le premier entier indique ou est l'entier + a patcher dans la string, le deuxieme son origine *) + reloc_info : int list RelocTable.t; +} + +let out_word env b1 b2 b3 b4 = + let p = env.out_position in + if p >= Bytes.length env.out_buffer then begin + let len = Bytes.length env.out_buffer in let new_len = if len <= Sys.max_string_length / 2 then 2 * len @@ -71,280 +114,264 @@ let out_word b1 b2 b3 b4 = then invalid_arg "String.create" (* Pas la bonne exception .... *) else Sys.max_string_length in let new_buffer = Bytes.create new_len in - Bytes.blit !out_buffer 0 new_buffer 0 len; - out_buffer := new_buffer + Bytes.blit env.out_buffer 0 new_buffer 0 len; + env.out_buffer <- new_buffer end; - patch_char4 !out_buffer p (Char.unsafe_chr b1) + patch_char4 env.out_buffer p (Char.unsafe_chr b1) (Char.unsafe_chr b2) (Char.unsafe_chr b3) (Char.unsafe_chr b4); - out_position := p + 4 + env.out_position <- p + 4 -let out opcode = - out_word opcode 0 0 0 +let out env opcode = + out_word env opcode 0 0 0 -let out_int n = - out_word n (n asr 8) (n asr 16) (n asr 24) +let out_int env n = + out_word env n (n asr 8) (n asr 16) (n asr 24) (* Handling of local labels and backpatching *) -type label_definition = - Label_defined of int - | Label_undefined of (int * int) list - -let label_table = ref ([| |] : label_definition array) -(* le ieme element de la table = Label_defined n signifie que l'on a - deja rencontrer le label i et qu'il est a l'offset n. - = Label_undefined l signifie que l'on a - pas encore rencontrer ce label, le premier entier indique ou est l'entier - a patcher dans la string, le deuxieme son origine *) - -let extend_label_table needed = - let new_size = ref(Array.length !label_table) in +let extend_label_table env needed = + let new_size = ref(Array.length env.label_table) in while needed >= !new_size do new_size := 2 * !new_size done; let new_table = Array.make !new_size (Label_undefined []) in - Array.blit !label_table 0 new_table 0 (Array.length !label_table); - label_table := new_table - -let backpatch (pos, orig) = - let displ = (!out_position - orig) asr 2 in - Bytes.set !out_buffer pos @@ Char.unsafe_chr displ; - Bytes.set !out_buffer (pos+1) @@ Char.unsafe_chr (displ asr 8); - Bytes.set !out_buffer (pos+2) @@ Char.unsafe_chr (displ asr 16); - Bytes.set !out_buffer (pos+3) @@ Char.unsafe_chr (displ asr 24) - -let define_label lbl = - if lbl >= Array.length !label_table then extend_label_table lbl; - match (!label_table).(lbl) with + Array.blit env.label_table 0 new_table 0 (Array.length env.label_table); + env.label_table <- new_table + +let backpatch env (pos, orig) = + let displ = (env.out_position - orig) asr 2 in + Bytes.set env.out_buffer pos @@ Char.unsafe_chr displ; + Bytes.set env.out_buffer (pos+1) @@ Char.unsafe_chr (displ asr 8); + Bytes.set env.out_buffer (pos+2) @@ Char.unsafe_chr (displ asr 16); + Bytes.set env.out_buffer (pos+3) @@ Char.unsafe_chr (displ asr 24) + +let define_label env lbl = + if lbl >= Array.length env.label_table then extend_label_table env lbl; + match (env.label_table).(lbl) with Label_defined _ -> raise(Failure "CEmitcode.define_label") | Label_undefined patchlist -> - List.iter backpatch patchlist; - (!label_table).(lbl) <- Label_defined !out_position + List.iter (fun p -> backpatch env p) patchlist; + (env.label_table).(lbl) <- Label_defined env.out_position -let out_label_with_orig orig lbl = - if lbl >= Array.length !label_table then extend_label_table lbl; - match (!label_table).(lbl) with +let out_label_with_orig env orig lbl = + if lbl >= Array.length env.label_table then extend_label_table env lbl; + match (env.label_table).(lbl) with Label_defined def -> - out_int((def - orig) asr 2) + out_int env ((def - orig) asr 2) | Label_undefined patchlist -> (* spiwack: patchlist is supposed to be non-empty all the time thus I commented that out. If there is no problem I suggest removing it for next release (cur: 8.1) *) (*if patchlist = [] then *) - (!label_table).(lbl) <- - Label_undefined((!out_position, orig) :: patchlist); - out_int 0 + (env.label_table).(lbl) <- + Label_undefined((env.out_position, orig) :: patchlist); + out_int env 0 -let out_label l = out_label_with_orig !out_position l +let out_label env l = out_label_with_orig env env.out_position l (* Relocation information *) -let reloc_info = ref ([] : (reloc_info * int) list) +let enter env info = + let pos = env.out_position in + let old = try RelocTable.find env.reloc_info info with Not_found -> [] in + RelocTable.replace env.reloc_info info (pos :: old) -let enter info = - reloc_info := (info, !out_position) :: !reloc_info +let slot_for_const env c = + enter env (Reloc_const c); + out_int env 0 -let slot_for_const c = - enter (Reloc_const c); - out_int 0 +let slot_for_annot env a = + enter env (Reloc_annot a); + out_int env 0 -let slot_for_annot a = - enter (Reloc_annot a); - out_int 0 - -let slot_for_getglobal p = - enter (Reloc_getglobal p); - out_int 0 +let slot_for_getglobal env p = + enter env (Reloc_getglobal p); + out_int env 0 (* Emission of one instruction *) -let emit_instr = function - | Klabel lbl -> define_label lbl +let emit_instr env = function + | Klabel lbl -> define_label env lbl | Kacc n -> - if n < 8 then out(opACC0 + n) else (out opACC; out_int n) + if n < 8 then out env(opACC0 + n) else (out env opACC; out_int env n) | Kenvacc n -> if n >= 1 && n <= 4 - then out(opENVACC1 + n - 1) - else (out opENVACC; out_int n) + then out env(opENVACC1 + n - 1) + else (out env opENVACC; out_int env n) | Koffsetclosure ofs -> if Int.equal ofs (-2) || Int.equal ofs 0 || Int.equal ofs 2 - then out (opOFFSETCLOSURE0 + ofs / 2) - else (out opOFFSETCLOSURE; out_int ofs) + then out env (opOFFSETCLOSURE0 + ofs / 2) + else (out env opOFFSETCLOSURE; out_int env ofs) | Kpush -> - out opPUSH + out env opPUSH | Kpop n -> - out opPOP; out_int n + out env opPOP; out_int env n | Kpush_retaddr lbl -> - out opPUSH_RETADDR; out_label lbl + out env opPUSH_RETADDR; out_label env lbl | Kapply n -> - if n < 4 then out(opAPPLY1 + n - 1) else (out opAPPLY; out_int n) + if n < 4 then out env(opAPPLY1 + n - 1) else (out env opAPPLY; out_int env n) | Kappterm(n, sz) -> - if n < 4 then (out(opAPPTERM1 + n - 1); out_int sz) - else (out opAPPTERM; out_int n; out_int sz) + if n < 4 then (out env(opAPPTERM1 + n - 1); out_int env sz) + else (out env opAPPTERM; out_int env n; out_int env sz) | Kreturn n -> - out opRETURN; out_int n + out env opRETURN; out_int env n | Kjump -> - out opRETURN; out_int 0 + out env opRETURN; out_int env 0 | Krestart -> - out opRESTART + out env opRESTART | Kgrab n -> - out opGRAB; out_int n + out env opGRAB; out_int env n | Kgrabrec(rec_arg) -> - out opGRABREC; out_int rec_arg + out env opGRABREC; out_int env rec_arg | Kclosure(lbl, n) -> - out opCLOSURE; out_int n; out_label lbl + out env opCLOSURE; out_int env n; out_label env lbl | Kclosurerec(nfv,init,lbl_types,lbl_bodies) -> - out opCLOSUREREC;out_int (Array.length lbl_bodies); - out_int nfv; out_int init; - let org = !out_position in - Array.iter (out_label_with_orig org) lbl_types; - let org = !out_position in - Array.iter (out_label_with_orig org) lbl_bodies + out env opCLOSUREREC;out_int env (Array.length lbl_bodies); + out_int env nfv; out_int env init; + let org = env.out_position in + Array.iter (out_label_with_orig env org) lbl_types; + let org = env.out_position in + Array.iter (out_label_with_orig env org) lbl_bodies | Kclosurecofix(nfv,init,lbl_types,lbl_bodies) -> - out opCLOSURECOFIX;out_int (Array.length lbl_bodies); - out_int nfv; out_int init; - let org = !out_position in - Array.iter (out_label_with_orig org) lbl_types; - let org = !out_position in - Array.iter (out_label_with_orig org) lbl_bodies + out env opCLOSURECOFIX;out_int env (Array.length lbl_bodies); + out_int env nfv; out_int env init; + let org = env.out_position in + Array.iter (out_label_with_orig env org) lbl_types; + let org = env.out_position in + Array.iter (out_label_with_orig env org) lbl_bodies | Kgetglobal q -> - out opGETGLOBAL; slot_for_getglobal q + out env opGETGLOBAL; slot_for_getglobal env q | Kconst (Const_b0 i) -> if i >= 0 && i <= 3 - then out (opCONST0 + i) - else (out opCONSTINT; out_int i) + then out env (opCONST0 + i) + else (out env opCONSTINT; out_int env i) | Kconst c -> - out opGETGLOBAL; slot_for_const c + out env opGETGLOBAL; slot_for_const env c | Kmakeblock(n, t) -> if Int.equal n 0 then invalid_arg "emit_instr : block size = 0" - else if n < 4 then (out(opMAKEBLOCK1 + n - 1); out_int t) - else (out opMAKEBLOCK; out_int n; out_int t) + else if n < 4 then (out env(opMAKEBLOCK1 + n - 1); out_int env t) + else (out env opMAKEBLOCK; out_int env n; out_int env t) | Kmakeprod -> - out opMAKEPROD + out env opMAKEPROD | Kmakeswitchblock(typlbl,swlbl,annot,sz) -> - out opMAKESWITCHBLOCK; - out_label typlbl; out_label swlbl; - slot_for_annot annot;out_int sz + out env opMAKESWITCHBLOCK; + out_label env typlbl; out_label env swlbl; + slot_for_annot env annot;out_int env sz | Kswitch (tbl_const, tbl_block) -> let lenb = Array.length tbl_block in let lenc = Array.length tbl_const in assert (lenb < 0x100 && lenc < 0x1000000); - out opSWITCH; - out_word lenc (lenc asr 8) (lenc asr 16) (lenb); -(* out_int (Array.length tbl_const + (Array.length tbl_block lsl 23)); *) - let org = !out_position in - Array.iter (out_label_with_orig org) tbl_const; - Array.iter (out_label_with_orig org) tbl_block + out env opSWITCH; + out_word env lenc (lenc asr 8) (lenc asr 16) (lenb); +(* out_int env (Array.length tbl_const + (Array.length tbl_block lsl 23)); *) + let org = env.out_position in + Array.iter (out_label_with_orig env org) tbl_const; + Array.iter (out_label_with_orig env org) tbl_block | Kpushfields n -> - out opPUSHFIELDS;out_int n + out env opPUSHFIELDS;out_int env n | Kfield n -> - if n <= 1 then out (opGETFIELD0+n) - else (out opGETFIELD;out_int n) + if n <= 1 then out env (opGETFIELD0+n) + else (out env opGETFIELD;out_int env n) | Ksetfield n -> - if n <= 1 then out (opSETFIELD0+n) - else (out opSETFIELD;out_int n) + if n <= 1 then out env (opSETFIELD0+n) + else (out env opSETFIELD;out_int env n) | Ksequence _ -> invalid_arg "Cemitcodes.emit_instr" - | Kproj (n,p) -> out opPROJ; out_int n; slot_for_const (Const_proj p) - | Kensurestackcapacity size -> out opENSURESTACKCAPACITY; out_int size + | Kproj (n,p) -> out env opPROJ; out_int env n; slot_for_const env (Const_proj p) + | Kensurestackcapacity size -> out env opENSURESTACKCAPACITY; out_int env size (* spiwack *) - | Kbranch lbl -> out opBRANCH; out_label lbl - | Kaddint31 -> out opADDINT31 - | Kaddcint31 -> out opADDCINT31 - | Kaddcarrycint31 -> out opADDCARRYCINT31 - | Ksubint31 -> out opSUBINT31 - | Ksubcint31 -> out opSUBCINT31 - | Ksubcarrycint31 -> out opSUBCARRYCINT31 - | Kmulint31 -> out opMULINT31 - | Kmulcint31 -> out opMULCINT31 - | Kdiv21int31 -> out opDIV21INT31 - | Kdivint31 -> out opDIVINT31 - | Kaddmuldivint31 -> out opADDMULDIVINT31 - | Kcompareint31 -> out opCOMPAREINT31 - | Khead0int31 -> out opHEAD0INT31 - | Ktail0int31 -> out opTAIL0INT31 - | Kisconst lbl -> out opISCONST; out_label lbl - | Kareconst(n,lbl) -> out opARECONST; out_int n; out_label lbl - | Kcompint31 -> out opCOMPINT31 - | Kdecompint31 -> out opDECOMPINT31 - | Klorint31 -> out opORINT31 - | Klandint31 -> out opANDINT31 - | Klxorint31 -> out opXORINT31 + | Kbranch lbl -> out env opBRANCH; out_label env lbl + | Kaddint31 -> out env opADDINT31 + | Kaddcint31 -> out env opADDCINT31 + | Kaddcarrycint31 -> out env opADDCARRYCINT31 + | Ksubint31 -> out env opSUBINT31 + | Ksubcint31 -> out env opSUBCINT31 + | Ksubcarrycint31 -> out env opSUBCARRYCINT31 + | Kmulint31 -> out env opMULINT31 + | Kmulcint31 -> out env opMULCINT31 + | Kdiv21int31 -> out env opDIV21INT31 + | Kdivint31 -> out env opDIVINT31 + | Kaddmuldivint31 -> out env opADDMULDIVINT31 + | Kcompareint31 -> out env opCOMPAREINT31 + | Khead0int31 -> out env opHEAD0INT31 + | Ktail0int31 -> out env opTAIL0INT31 + | Kisconst lbl -> out env opISCONST; out_label env lbl + | Kareconst(n,lbl) -> out env opARECONST; out_int env n; out_label env lbl + | Kcompint31 -> out env opCOMPINT31 + | Kdecompint31 -> out env opDECOMPINT31 + | Klorint31 -> out env opORINT31 + | Klandint31 -> out env opANDINT31 + | Klxorint31 -> out env opXORINT31 (*/spiwack *) | Kstop -> - out opSTOP + out env opSTOP (* Emission of a current list and remaining lists of instructions. Include some peephole optimization. *) -let rec emit insns remaining = match insns with +let rec emit env insns remaining = match insns with | [] -> (match remaining with [] -> () - | (first::rest) -> emit first rest) + | (first::rest) -> emit env first rest) (* Peephole optimizations *) | Kpush :: Kacc n :: c -> - if n < 8 then out(opPUSHACC0 + n) else (out opPUSHACC; out_int n); - emit c remaining + if n < 8 then out env(opPUSHACC0 + n) else (out env opPUSHACC; out_int env n); + emit env c remaining | Kpush :: Kenvacc n :: c -> if n >= 1 && n <= 4 - then out(opPUSHENVACC1 + n - 1) - else (out opPUSHENVACC; out_int n); - emit c remaining + then out env(opPUSHENVACC1 + n - 1) + else (out env opPUSHENVACC; out_int env n); + emit env c remaining | Kpush :: Koffsetclosure ofs :: c -> if Int.equal ofs (-2) || Int.equal ofs 0 || Int.equal ofs 2 - then out(opPUSHOFFSETCLOSURE0 + ofs / 2) - else (out opPUSHOFFSETCLOSURE; out_int ofs); - emit c remaining + then out env(opPUSHOFFSETCLOSURE0 + ofs / 2) + else (out env opPUSHOFFSETCLOSURE; out_int env ofs); + emit env c remaining | Kpush :: Kgetglobal id :: c -> - out opPUSHGETGLOBAL; slot_for_getglobal id; emit c remaining + out env opPUSHGETGLOBAL; slot_for_getglobal env id; emit env c remaining | Kpush :: Kconst (Const_b0 i) :: c -> if i >= 0 && i <= 3 - then out (opPUSHCONST0 + i) - else (out opPUSHCONSTINT; out_int i); - emit c remaining + then out env (opPUSHCONST0 + i) + else (out env opPUSHCONSTINT; out_int env i); + emit env c remaining | Kpush :: Kconst const :: c -> - out opPUSHGETGLOBAL; slot_for_const const; - emit c remaining + out env opPUSHGETGLOBAL; slot_for_const env const; + emit env c remaining | Kpop n :: Kjump :: c -> - out opRETURN; out_int n; emit c remaining + out env opRETURN; out_int env n; emit env c remaining | Ksequence(c1,c2)::c -> - emit c1 (c2::c::remaining) + emit env c1 (c2::c::remaining) (* Default case *) | instr :: c -> - emit_instr instr; emit c remaining + emit_instr env instr; emit env c remaining (* Initialization *) -let init () = - out_position := 0; - label_table := Array.make 16 (Label_undefined []); - reloc_info := [] - -type emitcodes = String.t - -let length = String.length - -type to_patch = emitcodes * (patch list) * fv +type to_patch = emitcodes * patches * fv (* Substitution *) let rec subst_strcst s sc = match sc with - | Const_sorts _ | Const_b0 _ | Const_univ_level _ | Const_type _ -> sc + | Const_sort _ | Const_b0 _ | Const_univ_level _ -> sc | Const_proj p -> Const_proj (subst_constant s p) | Const_bn(tag,args) -> Const_bn(tag,Array.map (subst_strcst s) args) | Const_ind ind -> let kn,i = ind in Const_ind (subst_mind s kn, i) -let subst_patch s (ri,pos) = +let subst_reloc s ri = match ri with | Reloc_annot a -> let (kn,i) = a.ci.ci_ind in let ci = {a.ci with ci_ind = (subst_mind s kn,i)} in - (Reloc_annot {a with ci = ci},pos) - | Reloc_const sc -> (Reloc_const (subst_strcst s sc), pos) - | Reloc_getglobal kn -> (Reloc_getglobal (subst_constant s kn), pos) + Reloc_annot {a with ci = ci} + | Reloc_const sc -> Reloc_const (subst_strcst s sc) + | Reloc_getglobal kn -> Reloc_getglobal (subst_constant s kn) + +let subst_patches subst p = + let infos = CArray.map (fun (r, pos) -> (subst_reloc subst r, pos)) p.reloc_infos in + { reloc_infos = infos; } let subst_to_patch s (code,pl,fv) = - code,List.rev_map (subst_patch s) pl,fv + code, subst_patches s pl, fv type body_code = | BCdefined of to_patch @@ -381,16 +408,23 @@ let repr_body_code = function | PBCconstant -> (None, BCconstant) let to_memory (init_code, fun_code, fv) = - init(); - emit init_code []; - emit fun_code []; + let env = { + out_buffer = Bytes.create 1024; + out_position = 0; + label_table = Array.make 16 (Label_undefined []); + reloc_info = RelocTable.create 91; + } in + emit env init_code []; + emit env fun_code []; (** Later uses of this string are all purely functional *) - let code = Bytes.sub_string !out_buffer 0 !out_position in + let code = Bytes.sub_string env.out_buffer 0 env.out_position in let code = CString.hcons code in - let reloc = List.rev !reloc_info in + let fold reloc npos accu = (reloc, Array.of_list npos) :: accu in + let reloc = RelocTable.fold fold env.reloc_info [] in + let reloc = { reloc_infos = CArray.of_list reloc } in Array.iter (fun lbl -> (match lbl with Label_defined _ -> assert true | Label_undefined patchlist -> - assert (patchlist = []))) !label_table; + assert (patchlist = []))) env.label_table; (code, reloc, fv) diff --git a/kernel/cemitcodes.mli b/kernel/cemitcodes.mli index fee45aafd8..03920dc1a3 100644 --- a/kernel/cemitcodes.mli +++ b/kernel/cemitcodes.mli @@ -6,20 +6,12 @@ type reloc_info = | Reloc_const of structured_constant | Reloc_getglobal of Constant.t -type patch = reloc_info * int - -(* A virer *) -val subst_patch : Mod_subst.substitution -> patch -> patch - +type patches type emitcodes -val length : emitcodes -> int - -val patch_int : emitcodes -> ((*pos*)int * int) list -> emitcodes - -type to_patch = emitcodes * (patch list) * fv +val patch : emitcodes -> patches -> (reloc_info -> int) -> Vmvalues.tcode -val subst_to_patch : Mod_subst.substitution -> to_patch -> to_patch +type to_patch = emitcodes * patches * fv type body_code = | BCdefined of to_patch diff --git a/kernel/cinstr.mli b/kernel/cinstr.mli new file mode 100644 index 0000000000..4a3c03d85e --- /dev/null +++ b/kernel/cinstr.mli @@ -0,0 +1,46 @@ +(************************************************************************) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) +(************************************************************************) +open Names +open Constr +open Cbytecodes + +(** This file defines the lambda code for the bytecode compiler. It has been +extracted from Clambda.ml because of the retroknowledge architecture. *) + +type uint = + | UintVal of Uint31.t + | UintDigits of lambda array + | UintDecomp of lambda + +and lambda = + | Lrel of Name.t * int + | Lvar of Id.t + | Levar of Evar.t * lambda array + | Lprod of lambda * lambda + | Llam of Name.t array * lambda + | Llet of Name.t * lambda * lambda + | Lapp of lambda * lambda array + | Lconst of pconstant + | Lprim of pconstant * int (* arity *) * instruction * lambda array + | Lcase of case_info * reloc_table * lambda * lambda * lam_branches + | Lfix of (int array * int) * fix_decl + | Lcofix of int * fix_decl + | Lmakeblock of int * lambda array + | Lval of structured_constant + | Lsort of Sorts.t + | Lind of pinductive + | Lproj of int * Constant.t * lambda + | Luint of uint + +and lam_branches = + { constant_branches : lambda array; + nonconstant_branches : (Name.t array * lambda) array } + +and fix_decl = Name.t array * lambda array * lambda array diff --git a/kernel/clambda.ml b/kernel/clambda.ml new file mode 100644 index 0000000000..7b637c20e6 --- /dev/null +++ b/kernel/clambda.ml @@ -0,0 +1,863 @@ +open Util +open Names +open Esubst +open Term +open Constr +open Declarations +open Cbytecodes +open Cinstr +open Pre_env +open Pp + +let pr_con sp = str(Names.Label.to_string (Constant.label sp)) + +(** Printing **) + +let pp_names ids = + prlist_with_sep (fun _ -> brk(1,1)) Name.print (Array.to_list ids) + +let pp_rel name n = + Name.print name ++ str "##" ++ int n + +let pp_sort s = + match Sorts.family s with + | InSet -> str "Set" + | InProp -> str "Prop" + | InType -> str "Type" + +let rec pp_lam lam = + match lam with + | Lrel (id,n) -> pp_rel id n + | Lvar id -> Id.print id + | Levar (evk, args) -> + hov 1 (str "evar(" ++ Evar.print evk ++ str "," ++ spc () ++ + prlist_with_sep spc pp_lam (Array.to_list args) ++ str ")") + | Lprod(dom,codom) -> hov 1 + (str "forall(" ++ + pp_lam dom ++ + str "," ++ spc() ++ + pp_lam codom ++ + str ")") + | Llam(ids,body) -> hov 1 + (str "(fun " ++ + pp_names ids ++ + str " =>" ++ + spc() ++ + pp_lam body ++ + str ")") + | Llet(id,def,body) -> hov 0 + (str "let " ++ + Name.print id ++ + str ":=" ++ + pp_lam def ++ + str " in" ++ + spc() ++ + pp_lam body) + | Lapp(f, args) -> hov 1 + (str "(" ++ pp_lam f ++ spc() ++ + prlist_with_sep spc pp_lam (Array.to_list args) ++ + str")") + | Lconst (kn,_) -> pr_con kn + | Lcase(_ci, _rtbl, t, a, branches) -> + let ic = ref (-1) in + let ib = ref 0 in + v 0 (str"<" ++ pp_lam t ++ str">" ++ cut() ++ + str "Case" ++ spc () ++ pp_lam a ++ spc() ++ str "of" ++ cut() ++ + v 0 + ((prlist_with_sep (fun _ -> str "") + (fun c -> + cut () ++ str "| " ++ + int (incr ic; !ic) ++ str " => " ++ pp_lam c) + (Array.to_list branches.constant_branches)) ++ + (prlist_with_sep (fun _ -> str "") + (fun (ids,c) -> + cut () ++ str "| " ++ + int (incr ib; !ib) ++ str " " ++ + pp_names ids ++ str " => " ++ pp_lam c) + (Array.to_list branches.nonconstant_branches))) + ++ cut() ++ str "end") + | Lfix((t,i),(lna,tl,bl)) -> + let fixl = Array.mapi (fun i id -> (id,t.(i),tl.(i),bl.(i))) lna in + hov 1 + (str"fix " ++ int i ++ spc() ++ str"{" ++ + v 0 + (prlist_with_sep spc + (fun (na,i,ty,bd) -> + Name.print na ++ str"/" ++ int i ++ str":" ++ + pp_lam ty ++ cut() ++ str":=" ++ + pp_lam bd) (Array.to_list fixl)) ++ + str"}") + + | Lcofix (i,(lna,tl,bl)) -> + let fixl = Array.mapi (fun i na -> (na,tl.(i),bl.(i))) lna in + hov 1 + (str"cofix " ++ int i ++ spc() ++ str"{" ++ + v 0 + (prlist_with_sep spc + (fun (na,ty,bd) -> + Name.print na ++ str":" ++ pp_lam ty ++ + cut() ++ str":=" ++ pp_lam bd) (Array.to_list fixl)) ++ + str"}") + | Lmakeblock(tag, args) -> + hov 1 + (str "(makeblock " ++ int tag ++ spc() ++ + prlist_with_sep spc pp_lam (Array.to_list args) ++ + str")") + | Lval _ -> str "values" + | Lsort s -> pp_sort s + | Lind ((mind,i), _) -> MutInd.print mind ++ str"#" ++ int i + | Lprim((kn,_u),ar,op,args) -> + hov 1 + (str "(PRIM " ++ pr_con kn ++ spc() ++ + prlist_with_sep spc pp_lam (Array.to_list args) ++ + str")") + | Lproj(i,kn,arg) -> + hov 1 + (str "(proj#" ++ int i ++ spc() ++ pr_con kn ++ str "(" ++ pp_lam arg + ++ str ")") + | Luint _ -> + str "(uint)" + +(*s Constructors *) + +let mkLapp f args = + if Array.length args = 0 then f + else + match f with + | Lapp(f', args') -> Lapp (f', Array.append args' args) + | _ -> Lapp(f, args) + +let mkLlam ids body = + if Array.length ids = 0 then body + else + match body with + | Llam(ids', body) -> Llam(Array.append ids ids', body) + | _ -> Llam(ids, body) + +let decompose_Llam lam = + match lam with + | Llam(ids,body) -> ids, body + | _ -> [||], lam + +(*s Operators on substitution *) +let subst_id = subs_id 0 +let lift = subs_lift +let liftn = subs_liftn +let cons v subst = subs_cons([|v|], subst) +let shift subst = subs_shft (1, subst) + +(* A generic map function *) + +let rec map_lam_with_binders g f n lam = + match lam with + | Lrel _ | Lvar _ | Lconst _ | Lval _ | Lsort _ | Lind _ -> lam + | Levar (evk, args) -> + let args' = Array.smartmap (f n) args in + if args == args' then lam else Levar (evk, args') + | Lprod(dom,codom) -> + let dom' = f n dom in + let codom' = f n codom in + if dom == dom' && codom == codom' then lam else Lprod(dom',codom') + | Llam(ids,body) -> + let body' = f (g (Array.length ids) n) body in + if body == body' then lam else mkLlam ids body' + | Llet(id,def,body) -> + let def' = f n def in + let body' = f (g 1 n) body in + if body == body' && def == def' then lam else Llet(id,def',body') + | Lapp(fct,args) -> + let fct' = f n fct in + let args' = Array.smartmap (f n) args in + if fct == fct' && args == args' then lam else mkLapp fct' args' + | Lcase(ci,rtbl,t,a,branches) -> + let const = branches.constant_branches in + let nonconst = branches.nonconstant_branches in + let t' = f n t in + let a' = f n a in + let const' = Array.smartmap (f n) const in + let on_b b = + let (ids,body) = b in + let body' = f (g (Array.length ids) n) body in + if body == body' then b else (ids,body') in + let nonconst' = Array.smartmap on_b nonconst in + let branches' = + if const == const' && nonconst == nonconst' then + branches + else + { constant_branches = const'; + nonconstant_branches = nonconst' } + in + if t == t' && a == a' && branches == branches' then lam else + Lcase(ci,rtbl,t',a',branches') + | Lfix(init,(ids,ltypes,lbodies)) -> + let ltypes' = Array.smartmap (f n) ltypes in + let lbodies' = Array.smartmap (f (g (Array.length ids) n)) lbodies in + if ltypes == ltypes' && lbodies == lbodies' then lam + else Lfix(init,(ids,ltypes',lbodies')) + | Lcofix(init,(ids,ltypes,lbodies)) -> + let ltypes' = Array.smartmap (f n) ltypes in + let lbodies' = Array.smartmap (f (g (Array.length ids) n)) lbodies in + if ltypes == ltypes' && lbodies == lbodies' then lam + else Lcofix(init,(ids,ltypes',lbodies')) + | Lmakeblock(tag,args) -> + let args' = Array.smartmap (f n) args in + if args == args' then lam else Lmakeblock(tag,args') + | Lprim(kn,ar,op,args) -> + let args' = Array.smartmap (f n) args in + if args == args' then lam else Lprim(kn,ar,op,args') + | Lproj(i,kn,arg) -> + let arg' = f n arg in + if arg == arg' then lam else Lproj(i,kn,arg') + | Luint u -> + let u' = map_uint g f n u in + if u == u' then lam else Luint u' + +and map_uint g f n u = + match u with + | UintVal _ -> u + | UintDigits(args) -> + let args' = Array.smartmap (f n) args in + if args == args' then u else UintDigits(args') + | UintDecomp(a) -> + let a' = f n a in + if a == a' then u else UintDecomp(a') + +(*s Lift and substitution *) + + +let rec lam_exlift el lam = + match lam with + | Lrel(id,i) -> + let i' = reloc_rel i el in + if i == i' then lam else Lrel(id,i') + | _ -> map_lam_with_binders el_liftn lam_exlift el lam + +let lam_lift k lam = + if k = 0 then lam + else lam_exlift (el_shft k el_id) lam + +let lam_subst_rel lam id n subst = + match expand_rel n subst with + | Inl(k,v) -> lam_lift k v + | Inr(n',_) -> + if n == n' then lam + else Lrel(id, n') + +let rec lam_exsubst subst lam = + match lam with + | Lrel(id,i) -> lam_subst_rel lam id i subst + | _ -> map_lam_with_binders liftn lam_exsubst subst lam + +let lam_subst_args subst args = + if is_subs_id subst then args + else Array.smartmap (lam_exsubst subst) args + +(** Simplification of lambda expression *) + +(* [simplify subst lam] simplify the expression [lam_subst subst lam] *) +(* that is : *) +(* - Reduce [let] is the definition can be substituted i.e: *) +(* - a variable (rel or identifier) *) +(* - a constant *) +(* - a structured constant *) +(* - a function *) +(* - Transform beta redex into [let] expression *) +(* - Move arguments under [let] *) +(* Invariant : Terms in [subst] are already simplified and can be *) +(* substituted *) + +let can_subst lam = + match lam with + | Lrel _ | Lvar _ | Lconst _ + | Lval _ | Lsort _ | Lind _ | Llam _ -> true + | _ -> false + +let rec simplify subst lam = + match lam with + | Lrel(id,i) -> lam_subst_rel lam id i subst + + | Llet(id,def,body) -> + let def' = simplify subst def in + if can_subst def' then simplify (cons def' subst) body + else + let body' = simplify (lift subst) body in + if def == def' && body == body' then lam + else Llet(id,def',body') + + | Lapp(f,args) -> + begin match simplify_app subst f subst args with + | Lapp(f',args') when f == f' && args == args' -> lam + | lam' -> lam' + end + + | _ -> map_lam_with_binders liftn simplify subst lam + +and simplify_app substf f substa args = + match f with + | Lrel(id, i) -> + begin match lam_subst_rel f id i substf with + | Llam(ids, body) -> + reduce_lapp + subst_id (Array.to_list ids) body + substa (Array.to_list args) + | f' -> mkLapp f' (simplify_args substa args) + end + | Llam(ids, body) -> + reduce_lapp substf (Array.to_list ids) body substa (Array.to_list args) + | Llet(id, def, body) -> + let def' = simplify substf def in + if can_subst def' then + simplify_app (cons def' substf) body substa args + else + Llet(id, def', simplify_app (lift substf) body (shift substa) args) + | Lapp(f, args') -> + let args = Array.append + (lam_subst_args substf args') (lam_subst_args substa args) in + simplify_app substf f subst_id args + | _ -> mkLapp (simplify substf f) (simplify_args substa args) + +and simplify_args subst args = Array.smartmap (simplify subst) args + +and reduce_lapp substf lids body substa largs = + match lids, largs with + | id::lids, a::largs -> + let a = simplify substa a in + if can_subst a then + reduce_lapp (cons a substf) lids body substa largs + else + let body = reduce_lapp (lift substf) lids body (shift substa) largs in + Llet(id, a, body) + | [], [] -> simplify substf body + | _::_, _ -> + Llam(Array.of_list lids, simplify (liftn (List.length lids) substf) body) + | [], _::_ -> simplify_app substf body substa (Array.of_list largs) + + + + +(* [occurrence kind k lam]: + If [kind] is [true] return [true] if the variable [k] does not appear in + [lam], return [false] if the variable appear one time and not + under a lambda, a fixpoint, a cofixpoint; else raise Not_found. + If [kind] is [false] return [false] if the variable does not appear in [lam] + else raise [Not_found] +*) + +let rec occurrence k kind lam = + match lam with + | Lrel (_,n) -> + if n = k then + if kind then false else raise Not_found + else kind + | Lvar _ | Lconst _ | Lval _ | Lsort _ | Lind _ -> kind + | Levar (_, args) -> + occurrence_args k kind args + | Lprod(dom, codom) -> + occurrence k (occurrence k kind dom) codom + | Llam(ids,body) -> + let _ = occurrence (k+Array.length ids) false body in kind + | Llet(_,def,body) -> + occurrence (k+1) (occurrence k kind def) body + | Lapp(f, args) -> + occurrence_args k (occurrence k kind f) args + | Lprim(_,_,_,args) | Lmakeblock(_,args) -> + occurrence_args k kind args + | Lcase(_ci,_rtbl,t,a,branches) -> + let kind = occurrence k (occurrence k kind t) a in + let r = ref kind in + Array.iter (fun c -> r := occurrence k kind c && !r) branches.constant_branches; + let on_b (ids,c) = + r := occurrence (k+Array.length ids) kind c && !r + in + Array.iter on_b branches.nonconstant_branches; + !r + | Lfix(_,(ids,ltypes,lbodies)) + | Lcofix(_,(ids,ltypes,lbodies)) -> + let kind = occurrence_args k kind ltypes in + let _ = occurrence_args (k+Array.length ids) false lbodies in + kind + | Lproj(_,_,arg) -> + occurrence k kind arg + | Luint u -> occurrence_uint k kind u + +and occurrence_args k kind args = + Array.fold_left (occurrence k) kind args + +and occurrence_uint k kind u = + match u with + | UintVal _ -> kind + | UintDigits args -> occurrence_args k kind args + | UintDecomp t -> occurrence k kind t + +let occur_once lam = + try let _ = occurrence 1 true lam in true + with Not_found -> false + +(* [remove_let lam] remove let expression in [lam] if the variable is *) +(* used at most once time in the body, and does not appear under *) +(* a lambda or a fix or a cofix *) + +let rec remove_let subst lam = + match lam with + | Lrel(id,i) -> lam_subst_rel lam id i subst + | Llet(id,def,body) -> + let def' = remove_let subst def in + if occur_once body then remove_let (cons def' subst) body + else + let body' = remove_let (lift subst) body in + if def == def' && body == body' then lam else Llet(id,def',body') + | _ -> map_lam_with_binders liftn remove_let subst lam + + +(*s Translation from [constr] to [lambda] *) + +(* Translation of constructor *) + +(* Limitation due to OCaml's representation of non-constant + constructors: limited to 245 + 1 (0 tag) cases. *) + +exception TooLargeInductive of Pp.t + +let max_nb_const = 0x1000000 +let max_nb_block = 0x1000000 + last_variant_tag - 1 + +let str_max_constructors = + Format.sprintf + " which has more than %i constant constructors or more than %i non-constant constructors" max_nb_const max_nb_block + +let check_compilable ib = + + if not (ib.mind_nb_args <= max_nb_block && ib.mind_nb_constant <= max_nb_const) then + let msg = + Pp.(str "Cannot compile code for virtual machine as it uses inductive " + ++ Id.print ib.mind_typename ++ str str_max_constructors) + in + raise (TooLargeInductive msg) + +let is_value lc = + match lc with + | Lval _ -> true + | _ -> false + +let get_value lc = + match lc with + | Lval v -> v + | _ -> raise Not_found + +let mkConst_b0 n = Lval (Cbytecodes.Const_b0 n) + +let make_args start _end = + Array.init (start - _end + 1) (fun i -> Lrel (Anonymous, start - i)) + +(* Translation of constructors *) +let expand_constructor tag nparams arity = + let ids = Array.make (nparams + arity) Anonymous in + if arity = 0 then mkLlam ids (mkConst_b0 tag) + else + let args = make_args arity 1 in + Llam(ids, Lmakeblock (tag, args)) + +let makeblock tag nparams arity args = + let nargs = Array.length args in + if nparams > 0 || nargs < arity then + mkLapp (expand_constructor tag nparams arity) args + else + (* The constructor is fully applied *) + if arity = 0 then mkConst_b0 tag + else + if Array.for_all is_value args then + if tag < last_variant_tag then + Lval(Cbytecodes.Const_bn(tag, Array.map get_value args)) + else + let args = Array.map get_value args in + let args = Array.append [|Cbytecodes.Const_b0 (tag - last_variant_tag) |] args in + Lval(Cbytecodes.Const_bn(last_variant_tag, args)) + else Lmakeblock(tag, args) + + +(* Compiling constants *) + +let rec get_alias env kn = + let cb = lookup_constant kn env in + let tps = cb.const_body_code in + match tps with + | None -> kn + | Some tps -> + (match Cemitcodes.force tps with + | Cemitcodes.BCalias kn' -> get_alias env kn' + | _ -> kn) + +(* Compilation of primitive *) + +let _h = Name(Id.of_string "f") + +(* +let expand_prim kn op arity = + let ids = Array.make arity Anonymous in + let args = make_args arity 1 in + Llam(ids, prim kn op args) +*) + +let compile_prim n op kn fc args = + if not fc then raise Not_found + else + Lprim(kn, n, op, args) + + (* + let (nparams, arity) = CPrimitives.arity op in + let expected = nparams + arity in + if Array.length args >= expected then prim kn op args + else mkLapp (expand_prim kn op expected) args +*) + +(*i Global environment *) + +let get_names decl = + let decl = Array.of_list decl in + Array.map fst decl + + +(* Rel Environment *) +module Vect = +struct + type 'a t = { + mutable elems : 'a array; + mutable size : int; + } + + let make n a = { + elems = Array.make n a; + size = 0; + } + + let extend v = + if v.size = Array.length v.elems then + let new_size = min (2*v.size) Sys.max_array_length in + if new_size <= v.size then raise (Invalid_argument "Vect.extend"); + let new_elems = Array.make new_size v.elems.(0) in + Array.blit v.elems 0 new_elems 0 (v.size); + v.elems <- new_elems + + let push v a = + extend v; + v.elems.(v.size) <- a; + v.size <- v.size + 1 + + let popn v n = + v.size <- max 0 (v.size - n) + + let pop v = popn v 1 + + let get_last v n = + if v.size <= n then raise + (Invalid_argument "Vect.get:index out of bounds"); + v.elems.(v.size - n - 1) + +end + +let dummy_lambda = Lrel(Anonymous, 0) + +let empty_args = [||] + +module Renv = +struct + + type constructor_info = tag * int * int (* nparam nrealargs *) + + type t = { + global_env : env; + name_rel : Name.t Vect.t; + construct_tbl : (constructor, constructor_info) Hashtbl.t; + } + + let make env = { + global_env = env; + name_rel = Vect.make 16 Anonymous; + construct_tbl = Hashtbl.create 111 + } + + let push_rel env id = Vect.push env.name_rel id + + let push_rels env ids = + Array.iter (push_rel env) ids + + let pop env = Vect.pop env.name_rel + + let popn env n = + for _i = 1 to n do pop env done + + let get env n = + Lrel (Vect.get_last env.name_rel (n-1), n) + + let get_construct_info env c = + try Hashtbl.find env.construct_tbl c + with Not_found -> + let ((mind,j), i) = c in + let oib = lookup_mind mind env.global_env in + let oip = oib.mind_packets.(j) in + check_compilable oip; + let tag,arity = oip.mind_reloc_tbl.(i-1) in + let nparams = oib.mind_nparams in + let r = (tag, nparams, arity) in + Hashtbl.add env.construct_tbl c r; + r +end + +open Renv + +let rec lambda_of_constr env c = + match Constr.kind c with + | Meta _ -> raise (Invalid_argument "Cbytegen.lambda_of_constr: Meta") + | Evar (evk, args) -> + let args = lambda_of_args env 0 args in + Levar (evk, args) + + | Cast (c, _, _) -> lambda_of_constr env c + + | Rel i -> Renv.get env i + + | Var id -> Lvar id + + | Sort s -> Lsort s + | Ind ind -> Lind ind + + | Prod(id, dom, codom) -> + let ld = lambda_of_constr env dom in + Renv.push_rel env id; + let lc = lambda_of_constr env codom in + Renv.pop env; + Lprod(ld, Llam([|id|], lc)) + + | Lambda _ -> + let params, body = decompose_lam c in + let ids = get_names (List.rev params) in + Renv.push_rels env ids; + let lb = lambda_of_constr env body in + Renv.popn env (Array.length ids); + mkLlam ids lb + + | LetIn(id, def, _, body) -> + let ld = lambda_of_constr env def in + Renv.push_rel env id; + let lb = lambda_of_constr env body in + Renv.pop env; + Llet(id, ld, lb) + + | App(f, args) -> lambda_of_app env f args + + | Const _ -> lambda_of_app env c empty_args + + | Construct _ -> lambda_of_app env c empty_args + + | Case(ci,t,a,branches) -> + let ind = ci.ci_ind in + let mib = lookup_mind (fst ind) env.global_env in + let oib = mib.mind_packets.(snd ind) in + let () = check_compilable oib in + let rtbl = oib.mind_reloc_tbl in + + + (* translation of the argument *) + let la = lambda_of_constr env a in + let entry = mkInd ind in + let la = + try + Retroknowledge.get_vm_before_match_info env.global_env.retroknowledge + entry la + with Not_found -> la + in + (* translation of the type *) + let lt = lambda_of_constr env t in + (* translation of branches *) + let consts = Array.make oib.mind_nb_constant dummy_lambda in + let blocks = Array.make oib.mind_nb_args ([||],dummy_lambda) in + for i = 0 to Array.length rtbl - 1 do + let tag, arity = rtbl.(i) in + let b = lambda_of_constr env branches.(i) in + if arity = 0 then consts.(tag) <- b + else + let b = + match b with + | Llam(ids, body) when Array.length ids = arity -> (ids, body) + | _ -> + let ids = Array.make arity Anonymous in + let args = make_args arity 1 in + let ll = lam_lift arity b in + (ids, mkLapp ll args) + in blocks.(tag-1) <- b + done; + let branches = + { constant_branches = consts; + nonconstant_branches = blocks } + in + Lcase(ci, rtbl, lt, la, branches) + + | Fix(rec_init,(names,type_bodies,rec_bodies)) -> + let ltypes = lambda_of_args env 0 type_bodies in + Renv.push_rels env names; + let lbodies = lambda_of_args env 0 rec_bodies in + Renv.popn env (Array.length names); + Lfix(rec_init, (names, ltypes, lbodies)) + + | CoFix(init,(names,type_bodies,rec_bodies)) -> + let ltypes = lambda_of_args env 0 type_bodies in + Renv.push_rels env names; + let lbodies = lambda_of_args env 0 rec_bodies in + Renv.popn env (Array.length names); + Lcofix(init, (names, ltypes, lbodies)) + + | Proj (p,c) -> + let kn = Projection.constant p in + let cb = lookup_constant kn env.global_env in + let pb = Option.get cb.const_proj in + let n = pb.proj_arg in + let lc = lambda_of_constr env c in + Lproj (n,kn,lc) + +and lambda_of_app env f args = + match Constr.kind f with + | Const (kn,u as c) -> + let kn = get_alias env.global_env kn in + (* spiwack: checks if there is a specific way to compile the constant + if there is not, Not_found is raised, and the function + falls back on its normal behavior *) + (try + (* We delay the compilation of arguments to avoid an exponential behavior *) + let f = Retroknowledge.get_vm_compiling_info env.global_env.retroknowledge + (mkConstU (kn,u)) in + let args = lambda_of_args env 0 args in + f args + with Not_found -> + let cb = lookup_constant kn env.global_env in + begin match cb.const_body with + | Def csubst when cb.const_inline_code -> + lambda_of_app env (Mod_subst.force_constr csubst) args + | Def _ | OpaqueDef _ | Undef _ -> mkLapp (Lconst c) (lambda_of_args env 0 args) + end) + | Construct (c,_) -> + let tag, nparams, arity = Renv.get_construct_info env c in + let nargs = Array.length args in + if Int.equal (nparams + arity) nargs then (* fully applied *) + (* spiwack: *) + (* 1/ tries to compile the constructor in an optimal way, + it is supposed to work only if the arguments are + all fully constructed, fails with Cbytecodes.NotClosed. + it can also raise Not_found when there is no special + treatment for this constructor + for instance: tries to to compile an integer of the + form I31 D1 D2 ... D31 to [D1D2...D31] as + a processor number (a caml number actually) *) + try + try + Retroknowledge.get_vm_constant_static_info + env.global_env.retroknowledge + f args + with NotClosed -> + (* 2/ if the arguments are not all closed (this is + expectingly (and it is currently the case) the only + reason why this exception is raised) tries to + give a clever, run-time behavior to the constructor. + Raises Not_found if there is no special treatment + for this integer. + this is done in a lazy fashion, using the constructor + Bspecial because it needs to know the continuation + and such, which can't be done at this time. + for instance, for int31: if one of the digit is + not closed, it's not impossible that the number + gets fully instanciated at run-time, thus to ensure + uniqueness of the representation in the vm + it is necessary to try and build a caml integer + during the execution *) + let rargs = Array.sub args nparams arity in + let args = lambda_of_args env nparams rargs in + Retroknowledge.get_vm_constant_dynamic_info + env.global_env.retroknowledge + f args + with Not_found -> + (* 3/ if no special behavior is available, then the compiler + falls back to the normal behavior *) + let args = lambda_of_args env nparams args in + makeblock tag 0 arity args + else + let args = lambda_of_args env nparams args in + (* spiwack: tries first to apply the run-time compilation + behavior of the constructor, as in 2/ above *) + (try + (Retroknowledge.get_vm_constant_dynamic_info + env.global_env.retroknowledge + f) args + with Not_found -> + if nparams <= nargs then (* got all parameters *) + makeblock tag 0 arity args + else (* still expecting some parameters *) + makeblock tag (nparams - nargs) arity empty_args) + | _ -> + let f = lambda_of_constr env f in + let args = lambda_of_args env 0 args in + mkLapp f args + +and lambda_of_args env start args = + let nargs = Array.length args in + if start < nargs then + Array.init (nargs - start) + (fun i -> lambda_of_constr env args.(start + i)) + else empty_args + + + + +(*********************************) + + +let optimize_lambda lam = + let lam = simplify subst_id lam in + remove_let subst_id lam + +let lambda_of_constr ~optimize genv c = + let env = Renv.make genv in + let ids = List.rev_map Context.Rel.Declaration.get_name genv.env_rel_context.env_rel_ctx in + Renv.push_rels env (Array.of_list ids); + let lam = lambda_of_constr env c in + let lam = if optimize then optimize_lambda lam else lam in + if !Flags.dump_lambda then + Feedback.msg_debug (pp_lam lam); + lam + +(** Retroknowledge, to be removed once we move to primitive machine integers *) +let compile_structured_int31 fc args = + if not fc then raise Not_found else + Luint (UintVal + (Uint31.of_int (Array.fold_left + (fun temp_i -> fun t -> match kind t with + | Construct ((_,d),_) -> 2*temp_i+d-1 + | _ -> raise NotClosed) + 0 args))) + +let dynamic_int31_compilation fc args = + if not fc then raise Not_found else + Luint (UintDigits args) + +(* We are relying here on the tags of digits constructors *) +let digits_from_uint i = + let d0 = mkConst_b0 0 in + let d1 = mkConst_b0 1 in + let digits = Array.make 31 d0 in + for k = 0 to 30 do + if Int.equal ((Uint31.to_int i lsr k) land 1) 1 then + digits.(30-k) <- d1 + done; + digits + +let int31_escape_before_match fc t = + if not fc then + raise Not_found + else + match t with + | Luint (UintVal i) -> + let digits = digits_from_uint i in + Lmakeblock (1, digits) + | Luint (UintDigits args) -> + Lmakeblock (1,args) + | Luint (UintDecomp _) -> + assert false + | _ -> Luint (UintDecomp t) diff --git a/kernel/clambda.mli b/kernel/clambda.mli new file mode 100644 index 0000000000..89b7fd8e3b --- /dev/null +++ b/kernel/clambda.mli @@ -0,0 +1,27 @@ +open Names +open Cinstr + +exception TooLargeInductive of Pp.t + +val lambda_of_constr : optimize:bool -> Pre_env.env -> Constr.t -> lambda + +val decompose_Llam : lambda -> Name.t array * lambda + +val get_alias : Pre_env.env -> Constant.t -> Constant.t + +val compile_prim : int -> Cbytecodes.instruction -> Constr.pconstant -> bool -> lambda array -> lambda + +(** spiwack: this function contains the information needed to perform + the static compilation of int31 (trying and obtaining + a 31-bit integer in processor representation at compile time) *) +val compile_structured_int31 : bool -> Constr.t array -> lambda + +(** this function contains the information needed to perform + the dynamic compilation of int31 (trying and obtaining a + 31-bit integer in processor representation at runtime when + it failed at compile time *) +val dynamic_int31_compilation : bool -> lambda array -> lambda + +(*spiwack: compiling function to insert dynamic decompilation before + matching integers (in case they are in processor representation) *) +val int31_escape_before_match : bool -> lambda -> lambda diff --git a/kernel/constr.ml b/kernel/constr.ml index 5930cfadc6..2cbcdd76e3 100644 --- a/kernel/constr.ml +++ b/kernel/constr.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* File initially created by Gérard Huet and Thierry Coquand in 1984 *) @@ -1178,8 +1180,3 @@ let hcons = Id.hcons) (* let hcons_types = hcons_constr *) - -(*******) -(* Type of abstract machine values *) -(** FIXME: nothing to do there *) -type values diff --git a/kernel/constr.mli b/kernel/constr.mli index 98bf713082..f7e4eecbad 100644 --- a/kernel/constr.mli +++ b/kernel/constr.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (** This file defines the most important datatype of Coq, namely kernel terms, @@ -459,7 +461,3 @@ val case_info_hash : case_info -> int (*********************************************************************) val hcons : constr -> constr - -(**************************************) - -type values diff --git a/kernel/context.ml b/kernel/context.ml index d635c4515b..4f3f649c14 100644 --- a/kernel/context.ml +++ b/kernel/context.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Jean-Christophe Filliâtre out of names.ml as part of the diff --git a/kernel/context.mli b/kernel/context.mli index c3ecd8d4ea..c97db4348e 100644 --- a/kernel/context.mli +++ b/kernel/context.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (** The modules defined below represent a {e local context} diff --git a/kernel/conv_oracle.ml b/kernel/conv_oracle.ml index ca568fc6ec..7ef63c1860 100644 --- a/kernel/conv_oracle.ml +++ b/kernel/conv_oracle.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Bruno Barras as part of the rewriting of the conversion diff --git a/kernel/conv_oracle.mli b/kernel/conv_oracle.mli index 02c179ab69..67add5dd35 100644 --- a/kernel/conv_oracle.mli +++ b/kernel/conv_oracle.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/cooking.ml b/kernel/cooking.ml index 7b921d35be..6f4541e956 100644 --- a/kernel/cooking.ml +++ b/kernel/cooking.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Jean-Christophe Filliâtre out of V6.3 file constants.ml @@ -168,38 +170,47 @@ let on_body ml hy f = function { Opaqueproof.modlist = ml; abstract = hy } o) let expmod_constr_subst cache modlist subst c = + let subst = Univ.make_instance_subst subst in let c = expmod_constr cache modlist c in Vars.subst_univs_level_constr subst c -let cook_constr { Opaqueproof.modlist ; abstract } c = +let cook_constr { Opaqueproof.modlist ; abstract = (vars, subst, _) } c = let cache = RefTable.create 13 in - let expmod = expmod_constr_subst cache modlist (pi2 abstract) in - let hyps = Context.Named.map expmod (pi1 abstract) in + let expmod = expmod_constr_subst cache modlist subst in + let hyps = Context.Named.map expmod vars in abstract_constant_body (expmod c) hyps -let lift_univs cb subst = +let lift_univs cb subst auctx0 = match cb.const_universes with - | Monomorphic_const ctx -> subst, (Monomorphic_const ctx) - | Polymorphic_const auctx -> - if (Univ.LMap.is_empty subst) then - subst, (Polymorphic_const auctx) + | Monomorphic_const ctx -> + assert (AUContext.is_empty auctx0); + subst, (Monomorphic_const ctx) + | Polymorphic_const auctx -> + (** Given a named instance [subst := u₀ ... uₙ₋₁] together with an abstract + context [auctx0 := 0 ... n - 1 |= C{0, ..., n - 1}] of the same length, + and another abstract context relative to the former context + [auctx := 0 ... m - 1 |= C'{u₀, ..., uₙ₋₁, 0, ..., m - 1}], + construct the lifted abstract universe context + [0 ... n - 1 n ... n + m - 1 |= + C{0, ... n - 1} ∪ + C'{0, ..., n - 1, n, ..., n + m - 1} ] + together with the instance + [u₀ ... uₙ₋₁ Var(0) ... Var (m - 1)]. + *) + if (Univ.Instance.is_empty subst) then + (** Still need to take the union for the constraints between globals *) + subst, (Polymorphic_const (AUContext.union auctx0 auctx)) else - let len = Univ.LMap.cardinal subst in - let rec gen_subst i acc = - if i < 0 then acc - else - let acc = Univ.LMap.add (Level.var i) (Level.var (i + len)) acc in - gen_subst (pred i) acc - in - let subst = gen_subst (Univ.AUContext.size auctx - 1) subst in - let auctx' = Univ.subst_univs_level_abstract_universe_context subst auctx in - subst, (Polymorphic_const auctx') + let ainst = Univ.make_abstract_instance auctx in + let subst = Instance.append subst ainst in + let auctx' = Univ.subst_univs_level_abstract_universe_context (Univ.make_instance_subst subst) auctx in + subst, (Polymorphic_const (AUContext.union auctx0 auctx')) let cook_constant ~hcons env { from = cb; info } = let { Opaqueproof.modlist; abstract } = info in let cache = RefTable.create 13 in let abstract, usubst, abs_ctx = abstract in - let usubst, univs = lift_univs cb usubst in + let usubst, univs = lift_univs cb usubst abs_ctx in let expmod = expmod_constr_subst cache modlist usubst in let hyps = Context.Named.map expmod abstract in let map c = @@ -234,13 +245,6 @@ let cook_constant ~hcons env { from = cb; info } = proj_eta = etab, etat; proj_type = ty'; proj_body = c' } in - let univs = - match univs with - | Monomorphic_const ctx -> - assert (AUContext.is_empty abs_ctx); univs - | Polymorphic_const auctx -> - Polymorphic_const (AUContext.union abs_ctx auctx) - in { cook_body = body; cook_type = typ; diff --git a/kernel/cooking.mli b/kernel/cooking.mli index 7696d7545d..7bd0ae5663 100644 --- a/kernel/cooking.mli +++ b/kernel/cooking.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Constr diff --git a/kernel/csymtable.ml b/kernel/csymtable.ml index 2ffe36fcf7..0129489542 100644 --- a/kernel/csymtable.ml +++ b/kernel/csymtable.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Bruno Barras for Benjamin Grégoire as part of the @@ -14,8 +16,7 @@ open Util open Names -open Constr -open Vm +open Vmvalues open Cemitcodes open Cbytecodes open Declarations @@ -25,7 +26,6 @@ open Cbytegen module NamedDecl = Context.Named.Declaration module RelDecl = Context.Rel.Declaration -external tcode_of_code : emitcodes -> int -> tcode = "coq_tcode_of_code" external eval_tcode : tcode -> values array -> values = "coq_eval_tcode" (*******************) @@ -56,61 +56,12 @@ let set_global v = (* table pour les structured_constant et les annotations des switchs *) -let rec eq_structured_constant c1 c2 = match c1, c2 with -| Const_sorts s1, Const_sorts s2 -> Sorts.equal s1 s2 -| Const_sorts _, _ -> false -| Const_ind i1, Const_ind i2 -> eq_ind i1 i2 -| Const_ind _, _ -> false -| Const_proj p1, Const_proj p2 -> Constant.equal p1 p2 -| Const_proj _, _ -> false -| Const_b0 t1, Const_b0 t2 -> Int.equal t1 t2 -| Const_b0 _, _ -> false -| Const_bn (t1, a1), Const_bn (t2, a2) -> - Int.equal t1 t2 && Array.equal eq_structured_constant a1 a2 -| Const_bn _, _ -> false -| Const_univ_level l1 , Const_univ_level l2 -> Univ.Level.equal l1 l2 -| Const_univ_level _ , _ -> false -| Const_type u1 , Const_type u2 -> Univ.Universe.equal u1 u2 -| Const_type _ , _ -> false - -let rec hash_structured_constant c = - let open Hashset.Combine in - match c with - | Const_sorts s -> combinesmall 1 (Sorts.hash s) - | Const_ind i -> combinesmall 2 (ind_hash i) - | Const_proj p -> combinesmall 3 (Constant.hash p) - | Const_b0 t -> combinesmall 4 (Int.hash t) - | Const_bn (t, a) -> - let fold h c = combine h (hash_structured_constant c) in - let h = Array.fold_left fold 0 a in - combinesmall 5 (combine (Int.hash t) h) - | Const_univ_level l -> combinesmall 6 (Univ.Level.hash l) - | Const_type u -> combinesmall 7 (Univ.Universe.hash u) - module SConstTable = Hashtbl.Make (struct type t = structured_constant let equal = eq_structured_constant let hash = hash_structured_constant end) -let eq_annot_switch asw1 asw2 = - let eq_ci ci1 ci2 = - eq_ind ci1.ci_ind ci2.ci_ind && - Int.equal ci1.ci_npar ci2.ci_npar && - Array.equal Int.equal ci1.ci_cstr_ndecls ci2.ci_cstr_ndecls - in - let eq_rlc (i1, j1) (i2, j2) = Int.equal i1 i2 && Int.equal j1 j2 in - eq_ci asw1.ci asw2.ci && - Array.equal eq_rlc asw1.rtbl asw2.rtbl && - (asw1.tailcall : bool) == asw2.tailcall - -let hash_annot_switch asw = - let open Hashset.Combine in - let h1 = Constr.case_info_hash asw.ci in - let h2 = Array.fold_left (fun h (t, i) -> combine3 h t i) 0 asw.rtbl in - let h3 = if asw.tailcall then 1 else 0 in - combine3 h1 h2 h3 - module AnnotTable = Hashtbl.Make (struct type t = annot_switch let equal = eq_annot_switch @@ -198,26 +149,25 @@ and slot_for_fv env fv = let rv = Pre_env.lookup_rel_val i env in begin match force_lazy_val rv with | None -> - env.env_rel_context |> Context.Rel.lookup i |> RelDecl.get_value |> fill_fv_cache rv i val_of_rel env_of_rel + env |> Pre_env.lookup_rel i |> RelDecl.get_value |> fill_fv_cache rv i val_of_rel env_of_rel | Some (v, _) -> v end + | FVevar evk -> val_of_evar evk | FVuniv_var idu -> assert false and eval_to_patch env (buff,pl,fv) = - let patch = function - | Reloc_annot a, pos -> (pos, slot_for_annot a) - | Reloc_const sc, pos -> (pos, slot_for_str_cst sc) - | Reloc_getglobal kn, pos -> (pos, slot_for_getglobal env kn) + let slots = function + | Reloc_annot a -> slot_for_annot a + | Reloc_const sc -> slot_for_str_cst sc + | Reloc_getglobal kn -> slot_for_getglobal env kn in - let patches = List.map_left patch pl in - let buff = patch_int buff patches in + let tc = patch buff pl slots in let vm_env = Array.map (slot_for_fv env) fv in - let tc = tcode_of_code buff (length buff) in eval_tcode tc vm_env and val_of_constr env c = - match compile true env c with + match compile ~fail_on_error:true env c with | Some v -> eval_to_patch env (to_memory v) | None -> assert false diff --git a/kernel/csymtable.mli b/kernel/csymtable.mli index 91bb30e7ed..19b2b8b50a 100644 --- a/kernel/csymtable.mli +++ b/kernel/csymtable.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* $Id$ *) @@ -12,7 +14,7 @@ open Names open Constr open Pre_env -val val_of_constr : env -> constr -> values +val val_of_constr : env -> constr -> Vmvalues.values val set_opaque_const : Constant.t -> unit val set_transparent_const : Constant.t -> unit diff --git a/kernel/declarations.ml b/kernel/declarations.ml index 7f4b85fd05..b7427d20a7 100644 --- a/kernel/declarations.ml +++ b/kernel/declarations.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names @@ -74,6 +76,7 @@ type typing_flags = { check_guarded : bool; (** If [false] then fixed points and co-fixed points are assumed to be total. *) check_universes : bool; (** If [false] universe constraints are not checked *) + conv_oracle : Conv_oracle.oracle; (** Unfolding strategies for conversion *) } (* some contraints are in constant_constraints, some other may be in @@ -218,7 +221,7 @@ type ('ty,'a) functorize = type with_declaration = | WithMod of Id.t list * ModPath.t - | WithDef of Id.t list * constr Univ.in_universe_context + | WithDef of Id.t list * (constr * Univ.AUContext.t option) type module_alg_expr = | MEident of ModPath.t diff --git a/kernel/declareops.ml b/kernel/declareops.ml index d8768a0fc5..3652a1ce44 100644 --- a/kernel/declareops.ml +++ b/kernel/declareops.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Declarations @@ -15,9 +17,10 @@ module RelDecl = Context.Rel.Declaration (** Operations concernings types in [Declarations] : [constant_body], [mutual_inductive_body], [module_body] ... *) -let safe_flags = { +let safe_flags oracle = { check_guarded = true; check_universes = true; + conv_oracle = oracle; } (** {6 Arities } *) diff --git a/kernel/declareops.mli b/kernel/declareops.mli index 198831848e..fb46112ea7 100644 --- a/kernel/declareops.mli +++ b/kernel/declareops.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Declarations @@ -67,7 +69,7 @@ val inductive_is_cumulative : mutual_inductive_body -> bool (** {6 Kernel flags} *) (** A default, safe set of flags for kernel type-checking *) -val safe_flags : typing_flags +val safe_flags : Conv_oracle.oracle -> typing_flags (** {6 Hash-consing} *) diff --git a/kernel/entries.ml b/kernel/entries.ml index 36b75668b2..94da00c7eb 100644 --- a/kernel/entries.ml +++ b/kernel/entries.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/environ.ml b/kernel/environ.ml index 1afab453ac..9d4063e433 100644 --- a/kernel/environ.ml +++ b/kernel/environ.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Author: Jean-Christophe Filliâtre as part of the rebuilding of Coq @@ -37,8 +39,10 @@ type env = Pre_env.env let pre_env env = env let env_of_pre_env env = env -let oracle env = env.env_conv_oracle -let set_oracle env o = { env with env_conv_oracle = o } +let oracle env = env.env_typing_flags.conv_oracle +let set_oracle env o = + let env_typing_flags = { env.env_typing_flags with conv_oracle = o } in + { env with env_typing_flags } let empty_named_context_val = empty_named_context_val @@ -58,18 +62,17 @@ let deactivated_guard env = not (typing_flags env).check_guarded let universes env = env.env_stratification.env_universes let named_context env = env.env_named_context.env_named_ctx let named_context_val env = env.env_named_context -let rel_context env = env.env_rel_context +let rel_context env = env.env_rel_context.env_rel_ctx let opaque_tables env = env.indirect_pterms let set_opaque_tables env indirect_pterms = { env with indirect_pterms } let empty_context env = - match env.env_rel_context, env.env_named_context.env_named_ctx with + match env.env_rel_context.env_rel_ctx, env.env_named_context.env_named_ctx with | [], [] -> true | _ -> false (* Rel context *) -let lookup_rel n env = - Context.Rel.lookup n env.env_rel_context +let lookup_rel = lookup_rel let evaluable_rel n env = is_local_def (lookup_rel n env) @@ -86,13 +89,12 @@ let push_rec_types (lna,typarray,_) env = let fold_rel_context f env ~init = let rec fold_right env = - match env.env_rel_context with - | [] -> init - | rd::rc -> + match match_rel_context_val env.env_rel_context with + | None -> init + | Some (rd, _, rc) -> let env = { env with env_rel_context = rc; - env_rel_val = List.tl env.env_rel_val; env_nb_rel = env.env_nb_rel - 1 } in f env rd (fold_right env) in fold_right env @@ -142,16 +144,21 @@ let evaluable_named id env = let reset_with_named_context ctxt env = { env with env_named_context = ctxt; - env_rel_context = Context.Rel.empty; - env_rel_val = []; + env_rel_context = empty_rel_context_val; env_nb_rel = 0 } let reset_context = reset_with_named_context empty_named_context_val let pop_rel_context n env = + let rec skip n ctx = + if Int.equal n 0 then ctx + else match match_rel_context_val ctx with + | None -> invalid_arg "List.skipn" + | Some (_, _, ctx) -> skip (pred n) ctx + in let ctxt = env.env_rel_context in { env with - env_rel_context = List.skipn n ctxt; + env_rel_context = skip n ctxt; env_nb_rel = env.env_nb_rel - n } let fold_named_context f env ~init = @@ -249,31 +256,10 @@ let constant_context env kn = | Monomorphic_const _ -> Univ.AUContext.empty | Polymorphic_const ctx -> ctx -type const_evaluation_result = NoBody | Opaque | IsProj +type const_evaluation_result = NoBody | Opaque exception NotEvaluableConst of const_evaluation_result -let constant_value env (kn,u) = - let cb = lookup_constant kn env in - if cb.const_proj = None then - match cb.const_body with - | Def l_body -> - begin - match cb.const_universes with - | Monomorphic_const _ -> - (Mod_subst.force_constr l_body, Univ.Constraint.empty) - | Polymorphic_const _ -> - let csts = constraints_of cb u in - (subst_instance_constr u (Mod_subst.force_constr l_body), csts) - end - | OpaqueDef _ -> raise (NotEvaluableConst Opaque) - | Undef _ -> raise (NotEvaluableConst NoBody) - else raise (NotEvaluableConst IsProj) - -let constant_opt_value env cst = - try Some (constant_value env cst) - with NotEvaluableConst _ -> None - let constant_value_and_type env (kn, u) = let cb = lookup_constant kn env in if Declareops.constant_is_polymorphic cb then @@ -484,7 +470,7 @@ type unsafe_type_judgment = types punsafe_type_judgment (*s Compilation of global declaration *) -let compile_constant_body = Cbytegen.compile_constant_body false +let compile_constant_body = Cbytegen.compile_constant_body ~fail_on_error:false exception Hyp_not_found @@ -576,7 +562,7 @@ let dispatch = it to the name of the coq definition in the reactive retroknowledge) *) let int31_op n op prim kn = { empty_reactive_info with - vm_compiling = Some (Cbytegen.op_compilation n op kn); + vm_compiling = Some (Clambda.compile_prim n op kn); native_compiling = Some (Nativelambda.compile_prim prim (Univ.out_punivs kn)); } in @@ -615,13 +601,13 @@ fun rk value field -> in { empty_reactive_info with vm_decompile_const = Some int31_decompilation; - vm_before_match = Some Cbytegen.int31_escape_before_match; + vm_before_match = Some Clambda.int31_escape_before_match; native_before_match = Some (Nativelambda.before_match_int31 i31bit_type); } | KInt31 (_, Int31Constructor) -> { empty_reactive_info with - vm_constant_static = Some Cbytegen.compile_structured_int31; - vm_constant_dynamic = Some Cbytegen.dynamic_int31_compilation; + vm_constant_static = Some Clambda.compile_structured_int31; + vm_constant_dynamic = Some Clambda.dynamic_int31_compilation; native_constant_static = Some Nativelambda.compile_static_int31; native_constant_dynamic = Some Nativelambda.compile_dynamic_int31; } diff --git a/kernel/environ.mli b/kernel/environ.mli index 7cc541258d..4e6ac1e725 100644 --- a/kernel/environ.mli +++ b/kernel/environ.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names @@ -146,13 +148,11 @@ val type_in_type_constant : Constant.t -> env -> bool body and [NotEvaluableConst IsProj] if [c] is a projection and [Not_found] if it does not exist in [env] *) -type const_evaluation_result = NoBody | Opaque | IsProj +type const_evaluation_result = NoBody | Opaque exception NotEvaluableConst of const_evaluation_result -val constant_value : env -> Constant.t puniverses -> constr constrained val constant_type : env -> Constant.t puniverses -> types constrained -val constant_opt_value : env -> Constant.t puniverses -> (constr * Univ.Constraint.t) option val constant_value_and_type : env -> Constant.t puniverses -> constr option * types * Univ.Constraint.t (** The universe context associated to the constant, empty if not @@ -201,7 +201,7 @@ val lookup_modtype : ModPath.t -> env -> module_type_body (** {5 Universe constraints } *) (** Add universe constraints to the environment. - @raises UniverseInconsistency + @raise UniverseInconsistency . *) val add_constraints : Univ.Constraint.t -> env -> env diff --git a/kernel/esubst.ml b/kernel/esubst.ml index ac2b3f9d59..a11a0dc00c 100644 --- a/kernel/esubst.ml +++ b/kernel/esubst.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Bruno Barras for Coq V7.0, Mar 2001 *) diff --git a/kernel/esubst.mli b/kernel/esubst.mli index 95a2e71c2c..b82d6fdf02 100644 --- a/kernel/esubst.mli +++ b/kernel/esubst.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (** Explicit substitutions *) diff --git a/kernel/evar.ml b/kernel/evar.ml index dcd2e12a0c..bbe143092b 100644 --- a/kernel/evar.ml +++ b/kernel/evar.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) type t = int diff --git a/kernel/evar.mli b/kernel/evar.mli index 6a058207f6..d14cdce27a 100644 --- a/kernel/evar.mli +++ b/kernel/evar.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (** This module defines existential variables, which are isomorphic to [int]. diff --git a/kernel/indtypes.ml b/kernel/indtypes.ml index 1f2ae0b6cc..439acd15bf 100644 --- a/kernel/indtypes.ml +++ b/kernel/indtypes.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open CErrors @@ -234,22 +236,32 @@ let check_subtyping_arity_constructor env (subst : constr -> constr) (arcn : typ (* This check produces a value of the unit type if successful or raises an anomaly if check fails. *) let check_subtyping cumi paramsctxt env_ar inds = let numparams = Context.Rel.nhyps paramsctxt in - let sbsubst = CumulativityInfo.subtyping_susbst cumi in - let dosubst = subst_univs_level_constr sbsubst in let uctx = CumulativityInfo.univ_context cumi in - let instance_other = Univ.subst_univs_level_instance sbsubst (Univ.UContext.instance uctx) in - let constraints_other = Univ.subst_univs_level_constraints sbsubst (Univ.UContext.constraints uctx) in + let new_levels = Array.init (UContext.size uctx) (Level.make DirPath.empty) in + let lmap = Array.fold_left2 (fun lmap u u' -> LMap.add u u' lmap) + LMap.empty (Instance.to_array @@ UContext.instance uctx) new_levels + in + let dosubst = subst_univs_level_constr lmap in + let instance_other = Instance.of_array new_levels in + let constraints_other = Univ.subst_univs_level_constraints lmap (Univ.UContext.constraints uctx) in let uctx_other = Univ.UContext.make (instance_other, constraints_other) in let env = Environ.push_context uctx env_ar in let env = Environ.push_context uctx_other env in - let env = push_context (CumulativityInfo.subtyp_context cumi) env in + let subtyp_constraints = + CumulativityInfo.leq_constraints cumi + (UContext.instance uctx) instance_other + Constraint.empty + in + let env = Environ.add_constraints subtyp_constraints env in (* process individual inductive types: *) Array.iter (fun (id,cn,lc,(sign,arity)) -> match arity with | RegularArity (_, full_arity, _) -> check_subtyping_arity_constructor env dosubst full_arity numparams true; Array.iter (fun cnt -> check_subtyping_arity_constructor env dosubst cnt numparams false) lc - | TemplateArity _ -> () + | TemplateArity _ -> + anomaly ~label:"check_subtyping" + Pp.(str "template polymorphism and cumulative polymorphism are not compatible") ) inds (* Type-check an inductive definition. Does not check positivity @@ -879,9 +891,13 @@ let abstract_inductive_universes iu = match iu with | Monomorphic_ind_entry ctx -> (Univ.empty_level_subst, Monomorphic_ind ctx) | Polymorphic_ind_entry ctx -> - let (inst, auctx) = Univ.abstract_universes ctx in (inst, Polymorphic_ind auctx) + let (inst, auctx) = Univ.abstract_universes ctx in + let inst = Univ.make_instance_subst inst in + (inst, Polymorphic_ind auctx) | Cumulative_ind_entry cumi -> - let (inst, acumi) = Univ.abstract_cumulativity_info cumi in (inst, Cumulative_ind acumi) + let (inst, acumi) = Univ.abstract_cumulativity_info cumi in + let inst = Univ.make_instance_subst inst in + (inst, Cumulative_ind acumi) let build_inductive env prv iu env_ar paramsctxt kn isrecord isfinite inds nmr recargs = let ntypes = Array.length inds in diff --git a/kernel/indtypes.mli b/kernel/indtypes.mli index 9a9380adb1..5a38172c2d 100644 --- a/kernel/indtypes.mli +++ b/kernel/indtypes.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/inductive.ml b/kernel/inductive.ml index 28a09b81b0..91c042130a 100644 --- a/kernel/inductive.ml +++ b/kernel/inductive.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open CErrors @@ -796,18 +798,18 @@ let rec subterm_specif renv stack t = | Proj (p, c) -> let subt = subterm_specif renv stack c in - (match subt with - | Subterm (s, wf) -> - (* We take the subterm specs of the constructor of the record *) - let wf_args = (dest_subterms wf).(0) in - (* We extract the tree of the projected argument *) - let kn = Projection.constant p in - let cb = lookup_constant kn renv.env in - let pb = Option.get cb.const_proj in - let n = pb.proj_arg in - Subterm (Strict, List.nth wf_args n) - | Dead_code -> Dead_code - | Not_subterm -> Not_subterm) + (match subt with + | Subterm (s, wf) -> + (* We take the subterm specs of the constructor of the record *) + let wf_args = (dest_subterms wf).(0) in + (* We extract the tree of the projected argument *) + let kn = Projection.constant p in + let cb = lookup_constant kn renv.env in + let pb = Option.get cb.const_proj in + let n = pb.proj_arg in + spec_of_tree (List.nth wf_args n) + | Dead_code -> Dead_code + | Not_subterm -> Not_subterm) | Var _ | Sort _ | Cast _ | Prod _ | LetIn _ | App _ | Const _ | Ind _ | Construct _ | CoFix _ -> Not_subterm diff --git a/kernel/inductive.mli b/kernel/inductive.mli index 8aaeee831b..c7982f1fc1 100644 --- a/kernel/inductive.mli +++ b/kernel/inductive.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/kernel.mllib b/kernel/kernel.mllib index 917e4f6f14..370185a721 100644 --- a/kernel/kernel.mllib +++ b/kernel/kernel.mllib @@ -16,14 +16,16 @@ Cemitcodes Opaqueproof Declarations Entries +Vmvalues Nativevalues CPrimitives Declareops Retroknowledge Conv_oracle Pre_env -Cbytegen +Clambda Nativelambda +Cbytegen Nativecode Nativelib Environ diff --git a/kernel/mod_subst.ml b/kernel/mod_subst.ml index 2c8ef477fc..9c2fa05465 100644 --- a/kernel/mod_subst.ml +++ b/kernel/mod_subst.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Claudio Sacerdoti from contents of term.ml, names.ml and diff --git a/kernel/mod_subst.mli b/kernel/mod_subst.mli index 1aa7ba519c..b14d392073 100644 --- a/kernel/mod_subst.mli +++ b/kernel/mod_subst.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (** {6 [Mod_subst] } *) diff --git a/kernel/mod_typing.ml b/kernel/mod_typing.ml index f7e755f005..1baab7c98c 100644 --- a/kernel/mod_typing.ml +++ b/kernel/mod_typing.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Jacek Chrzaszcz, Aug 2002 as part of the implementation of @@ -73,13 +75,8 @@ let rec check_with_def env struc (idl,(c,ctx)) mp equiv = any implementations of parameters and opaques terms, as long as they have the right type *) let c', univs, ctx' = - match cb.const_universes with - | Monomorphic_const _ -> - (** We do not add the deferred constraints of the body in the - environment, because they do not appear in the type of the - definition. Any inconsistency will be raised at a later stage - when joining the environment. *) - let env' = Environ.push_context ~strict:true ctx env' in + match cb.const_universes, ctx with + | Monomorphic_const _, None -> let c',cst = match cb.const_body with | Undef _ | OpaqueDef _ -> let j = Typeops.infer env' c in @@ -91,11 +88,8 @@ let rec check_with_def env struc (idl,(c,ctx)) mp equiv = let c' = Mod_subst.force_constr cs in c, Reduction.infer_conv env' (Environ.universes env') c c' in - let ctx = Univ.ContextSet.of_context ctx in - c', Monomorphic_const ctx, Univ.ContextSet.add_constraints cst ctx - | Polymorphic_const uctx -> - let subst, ctx = Univ.abstract_universes ctx in - let c = Vars.subst_univs_level_constr subst c in + c', Monomorphic_const Univ.ContextSet.empty, cst + | Polymorphic_const uctx, Some ctx -> let () = if not (UGraph.check_subtype (Environ.universes env) uctx ctx) then error_incorrect_with_constraint lab @@ -116,7 +110,8 @@ let rec check_with_def env struc (idl,(c,ctx)) mp equiv = in if not (Univ.Constraint.is_empty cst) then error_incorrect_with_constraint lab; - c, Polymorphic_const ctx, Univ.ContextSet.empty + c, Polymorphic_const ctx, Univ.Constraint.empty + | _ -> error_incorrect_with_constraint lab in let def = Def (Mod_subst.from_val c') in (* let ctx' = Univ.UContext.make (newus, cst) in *) @@ -225,11 +220,11 @@ let rec check_with_mod env struc (idl,mp1) mp equiv = | Reduction.NotConvertible -> error_incorrect_with_constraint lab let check_with env mp (sign,alg,reso,cst) = function - |WithDef(idl,c) -> + |WithDef(idl, (c, ctx)) -> let struc = destr_nofunctor sign in - let struc',c',cst' = check_with_def env struc (idl,c) mp reso in - let wd' = WithDef (idl,(c',Univ.ContextSet.to_context cst')) in - NoFunctor struc', MEwith (alg,wd'), reso, cst+++cst' + let struc', c', cst' = check_with_def env struc (idl, (c, ctx)) mp reso in + let wd' = WithDef (idl, (c', ctx)) in + NoFunctor struc', MEwith (alg,wd'), reso, Univ.ContextSet.add_constraints cst' cst |WithMod(idl,mp1) as wd -> let struc = destr_nofunctor sign in let struc',reso',cst' = check_with_mod env struc (idl,mp1) mp reso in diff --git a/kernel/mod_typing.mli b/kernel/mod_typing.mli index 1225c3e1e3..e74f455efe 100644 --- a/kernel/mod_typing.mli +++ b/kernel/mod_typing.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Declarations diff --git a/kernel/modops.ml b/kernel/modops.ml index 11e6be6598..bbf160db21 100644 --- a/kernel/modops.ml +++ b/kernel/modops.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Jacek Chrzaszcz, Aug 2002 as part of the implementation of diff --git a/kernel/modops.mli b/kernel/modops.mli index bbb4c918c3..cb41a5123a 100644 --- a/kernel/modops.mli +++ b/kernel/modops.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/names.ml b/kernel/names.ml index b02c0b8409..6fa44c0610 100644 --- a/kernel/names.ml +++ b/kernel/names.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* File created around Apr 1994 for CiC V5.10.5 by Chet Murthy collecting diff --git a/kernel/names.mli b/kernel/names.mli index 709ebeb7fd..209826c1ff 100644 --- a/kernel/names.mli +++ b/kernel/names.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (** This file defines a lot of different notions of names used pervasively in @@ -40,19 +42,16 @@ sig (** Hash over identifiers. *) val is_valid : string -> bool - (** Check that a string may be converted to an identifier. - @raise Unicode.Unsupported if the provided string contains unsupported UTF-8 characters. *) + (** Check that a string may be converted to an identifier. *) val of_bytes : bytes -> t val of_string : string -> t (** Converts a string into an identifier. - @raise UserError if the string is invalid as an identifier. - @raise Unicode.Unsupported if the provided string contains unsupported UTF-8 characters. *) + @raise UserError if the string is invalid as an identifier. *) val of_string_soft : string -> t (** Same as {!of_string} except that any string made of supported UTF-8 characters is accepted. - @raise UserError if the string is invalid as an UTF-8 string. - @raise Unicode.Unsupported if the provided string contains unsupported UTF-8 characters. *) + @raise UserError if the string is invalid as an UTF-8 string. *) val to_string : t -> string (** Converts a identifier into an string. *) diff --git a/kernel/nativecode.ml b/kernel/nativecode.ml index c558e9ed03..c82d982b4b 100644 --- a/kernel/nativecode.ml +++ b/kernel/nativecode.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open CErrors @@ -148,7 +150,7 @@ type symbol = | SymbMatch of annot_sw | SymbInd of inductive | SymbMeta of metavariable - | SymbEvar of existential + | SymbEvar of Evar.t | SymbLevel of Univ.Level.t let dummy_symb = SymbValue (dummy_value ()) @@ -162,8 +164,7 @@ let eq_symbol sy1 sy2 = | SymbMatch sw1, SymbMatch sw2 -> eq_annot_sw sw1 sw2 | SymbInd ind1, SymbInd ind2 -> eq_ind ind1 ind2 | SymbMeta m1, SymbMeta m2 -> Int.equal m1 m2 - | SymbEvar (evk1,args1), SymbEvar (evk2,args2) -> - Evar.equal evk1 evk2 && Array.for_all2 Constr.equal args1 args2 + | SymbEvar evk1, SymbEvar evk2 -> Evar.equal evk1 evk2 | SymbLevel l1, SymbLevel l2 -> Univ.Level.equal l1 l2 | _, _ -> false @@ -176,10 +177,7 @@ let hash_symbol symb = | SymbMatch sw -> combinesmall 5 (hash_annot_sw sw) | SymbInd ind -> combinesmall 6 (ind_hash ind) | SymbMeta m -> combinesmall 7 m - | SymbEvar (evk,args) -> - let evh = Evar.hash evk in - let hl = Array.fold_left (fun h t -> combine h (Constr.hash t)) evh args in - combinesmall 8 hl + | SymbEvar evk -> combinesmall 8 (Evar.hash evk) | SymbLevel l -> combinesmall 9 (Univ.Level.hash l) module HashedTypeSymbol = struct @@ -1047,11 +1045,12 @@ let ml_of_instance instance u = let tyn = fresh_lname Anonymous in let i = push_symbol (SymbMeta mv) in MLapp(MLprimitive Mk_meta, [|get_meta_code i; MLlocal tyn|]) - | Levar(ev,ty) -> + | Levar(evk,ty,args) -> let tyn = fresh_lname Anonymous in - let i = push_symbol (SymbEvar ev) in + let i = push_symbol (SymbEvar evk) in + let args = MLarray(Array.map (ml_of_lam env l) args) in MLlet(tyn, ml_of_lam env l ty, - MLapp(MLprimitive Mk_evar, [|get_evar_code i;MLlocal tyn|])) + MLapp(MLprimitive Mk_evar, [|get_evar_code i;MLlocal tyn; args|])) | Lprod(dom,codom) -> let dom = ml_of_lam env l dom in let codom = ml_of_lam env l codom in @@ -1830,7 +1829,7 @@ and apply_fv env sigma univ (fv_named,fv_rel) auxdefs ml = in let auxdefs = List.fold_right get_rel_val fv_rel auxdefs in let auxdefs = List.fold_right get_named_val fv_named auxdefs in - let lvl = Context.Rel.length env.env_rel_context in + let lvl = Context.Rel.length env.env_rel_context.env_rel_ctx in let fv_rel = List.map (fun (n,_) -> MLglobal (Grel (lvl-n))) fv_rel in let fv_named = List.map (fun (id,_) -> MLglobal (Gnamed id)) fv_named in let aux_name = fresh_lname Anonymous in @@ -1838,8 +1837,8 @@ and apply_fv env sigma univ (fv_named,fv_rel) auxdefs ml = and compile_rel env sigma univ auxdefs n = let open Context.Rel.Declaration in - let decl = Context.Rel.lookup n env.env_rel_context in - let n = Context.Rel.length env.env_rel_context - n in + let decl = Pre_env.lookup_rel n env in + let n = List.length env.env_rel_context.env_rel_ctx - n in match decl with | LocalDef (_,t,_) -> let code = lambda_of_constr env sigma t in @@ -1919,15 +1918,17 @@ let compile_constant env sigma prefix ~interactive con cb = let asw = { asw_ind = ind; asw_prefix = prefix; asw_ci = ci; asw_reloc = tbl; asw_finite = true } in let c_uid = fresh_lname Anonymous in + let cf_uid = fresh_lname Anonymous in let _, arity = tbl.(0) in let ci_uid = fresh_lname Anonymous in let cargs = Array.init arity (fun i -> if Int.equal i pb.proj_arg then Some ci_uid else None) in let i = push_symbol (SymbConst con) in - let accu = MLapp (MLprimitive Cast_accu, [|MLlocal c_uid|]) in + let accu = MLapp (MLprimitive Cast_accu, [|MLlocal cf_uid|]) in let accu_br = MLapp (MLprimitive Mk_proj, [|get_const_code i;accu|]) in - let code = MLmatch(asw,MLlocal c_uid,accu_br,[|[((ind,1),cargs)],MLlocal ci_uid|]) in + let code = MLmatch(asw,MLlocal cf_uid,accu_br,[|[((ind,1),cargs)],MLlocal ci_uid|]) in + let code = MLlet(cf_uid, MLapp (MLprimitive Force_cofix, [|MLlocal c_uid|]), code) in let gn = Gproj ("",con) in let fargs = Array.init (pb.proj_npars + 1) (fun _ -> fresh_lname Anonymous) in let arg = fargs.(pb.proj_npars) in diff --git a/kernel/nativecode.mli b/kernel/nativecode.mli index d08f49095e..4b23cc5f8b 100644 --- a/kernel/nativecode.mli +++ b/kernel/nativecode.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names open Constr @@ -44,7 +46,7 @@ val get_ind : symbols -> int -> inductive val get_meta : symbols -> int -> metavariable -val get_evar : symbols -> int -> existential +val get_evar : symbols -> int -> Evar.t val get_level : symbols -> int -> Univ.Level.t diff --git a/kernel/nativeconv.ml b/kernel/nativeconv.ml index 9f9102f7d2..c71f746bec 100644 --- a/kernel/nativeconv.ml +++ b/kernel/nativeconv.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open CErrors @@ -54,13 +56,18 @@ and conv_accu env pb lvl k1 k2 cu = conv_atom env pb lvl (atom_of_accu k1) (atom_of_accu k2) cu else let cu = conv_atom env pb lvl (atom_of_accu k1) (atom_of_accu k2) cu in - List.fold_right2 (conv_val env CONV lvl) (args_of_accu k1) (args_of_accu k2) cu + Array.fold_right2 (conv_val env CONV lvl) (args_of_accu k1) (args_of_accu k2) cu and conv_atom env pb lvl a1 a2 cu = if a1 == a2 then cu else match a1, a2 with - | Ameta _, _ | _, Ameta _ | Aevar _, _ | _, Aevar _ -> assert false + | Ameta (m1,_), Ameta (m2,_) -> + if Int.equal m1 m2 then cu else raise NotConvertible + | Aevar (ev1,_,args1), Aevar (ev2,_,args2) -> + if Evar.equal ev1 ev2 then + Array.fold_right2 (conv_val env CONV lvl) args1 args2 cu + else raise NotConvertible | Arel i1, Arel i2 -> if Int.equal i1 i2 then cu else raise NotConvertible | Aind (ind1,u1), Aind (ind2,u2) -> @@ -112,7 +119,7 @@ and conv_atom env pb lvl a1 a2 cu = else conv_accu env CONV lvl ac1 ac2 cu | Arel _, _ | Aind _, _ | Aconstant _, _ | Asort _, _ | Avar _, _ | Acase _, _ | Afix _, _ | Acofix _, _ | Acofixe _, _ | Aprod _, _ - | Aproj _, _ -> raise NotConvertible + | Aproj _, _ | Ameta _, _ | Aevar _, _ -> raise NotConvertible (* Precondition length t1 = length f1 = length f2 = length t2 *) and conv_fix env lvl t1 f1 t2 f2 cu = diff --git a/kernel/nativeconv.mli b/kernel/nativeconv.mli index 769deacae5..2111739d5e 100644 --- a/kernel/nativeconv.mli +++ b/kernel/nativeconv.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Constr open Reduction diff --git a/kernel/nativeinstr.mli b/kernel/nativeinstr.mli index 928283a4d8..9c17cc2b5f 100644 --- a/kernel/nativeinstr.mli +++ b/kernel/nativeinstr.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names open Constr @@ -23,7 +25,7 @@ and lambda = | Lrel of Name.t * int | Lvar of Id.t | Lmeta of metavariable * lambda (* type *) - | Levar of existential * lambda (* type *) + | Levar of Evar.t * lambda (* type *) * lambda array (* arguments *) | Lprod of lambda * lambda | Llam of Name.t array * lambda | Llet of Name.t * lambda * lambda diff --git a/kernel/nativelambda.ml b/kernel/nativelambda.ml index 160a90dc2f..01ddffe3ef 100644 --- a/kernel/nativelambda.ml +++ b/kernel/nativelambda.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Util open Names @@ -83,9 +85,9 @@ let get_const_prefix env c = (* A generic map function *) -let map_lam_with_binders g f n lam = +let rec map_lam_with_binders g f n lam = match lam with - | Lrel _ | Lvar _ | Lconst _ | Lproj _ | Luint _ | Lval _ | Lsort _ | Lind _ + | Lrel _ | Lvar _ | Lconst _ | Lproj _ | Lval _ | Lsort _ | Lind _ | Lconstruct _ | Llazy | Lforce | Lmeta _ | Levar _ -> lam | Lprod(dom,codom) -> let dom' = f n dom in @@ -134,6 +136,19 @@ let map_lam_with_binders g f n lam = | Lmakeblock(prefix,cn,tag,args) -> let args' = Array.smartmap (f n) args in if args == args' then lam else Lmakeblock(prefix,cn,tag,args') + | Luint u -> + let u' = map_uint g f n u in + if u == u' then lam else Luint u' + +and map_uint g f n u = + match u with + | UintVal _ -> u + | UintDigits(prefix,c,args) -> + let args' = Array.smartmap (f n) args in + if args == args' then u else UintDigits(prefix,c,args') + | UintDecomp(prefix,c,a) -> + let a' = f n a in + if a == a' then u else UintDecomp(prefix,c,a') (*s Lift and substitution *) @@ -453,11 +468,12 @@ let rec lambda_of_constr env sigma c = let ty = meta_type sigma mv in Lmeta (mv, lambda_of_constr env sigma ty) - | Evar ev -> + | Evar (evk,args as ev) -> (match evar_value sigma ev with | None -> let ty = evar_type sigma ev in - Levar(ev, lambda_of_constr env sigma ty) + let args = Array.map (lambda_of_constr env sigma) args in + Levar(evk, lambda_of_constr env sigma ty, args) | Some t -> lambda_of_constr env sigma t) | Cast (c, _, _) -> lambda_of_constr env sigma c @@ -639,7 +655,7 @@ let optimize lam = let lambda_of_constr env sigma c = set_global_env env; let env = Renv.make () in - let ids = List.rev_map RelDecl.get_name !global_env.env_rel_context in + let ids = List.rev_map RelDecl.get_name !global_env.env_rel_context.env_rel_ctx in Renv.push_rels env (Array.of_list ids); let lam = lambda_of_constr env sigma c in (* if Flags.vm_draw_opt () then begin diff --git a/kernel/nativelambda.mli b/kernel/nativelambda.mli index 933fbc660f..9a1e19b3cb 100644 --- a/kernel/nativelambda.mli +++ b/kernel/nativelambda.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names open Constr diff --git a/kernel/nativelib.ml b/kernel/nativelib.ml index 4e7d6b218c..31ad364911 100644 --- a/kernel/nativelib.ml +++ b/kernel/nativelib.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Util open Nativevalues @@ -157,9 +159,8 @@ let call_linker ?(fatal=true) prefix f upds = register_native_file prefix with Dynlink.Error e as exn -> let exn = CErrors.push exn in - let msg = "Dynlink error, " ^ Dynlink.error_message e in - if fatal then (Feedback.msg_error (Pp.str msg); iraise exn) - else if !Flags.debug then Feedback.msg_debug (Pp.str msg)); + if fatal then iraise exn + else if !Flags.debug then Feedback.msg_debug CErrors.(iprint exn)); match upds with Some upds -> update_locations upds | _ -> () let link_library ~prefix ~dirname ~basename = diff --git a/kernel/nativelib.mli b/kernel/nativelib.mli index b74d4fdd05..25adcf224b 100644 --- a/kernel/nativelib.mli +++ b/kernel/nativelib.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Nativecode diff --git a/kernel/nativelibrary.ml b/kernel/nativelibrary.ml index c68f781213..c69cf722bc 100644 --- a/kernel/nativelibrary.ml +++ b/kernel/nativelibrary.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/nativelibrary.mli b/kernel/nativelibrary.mli index 72e3d80413..31e5255fc4 100644 --- a/kernel/nativelibrary.mli +++ b/kernel/nativelibrary.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names open Declarations diff --git a/kernel/nativevalues.ml b/kernel/nativevalues.ml index ae66362ca3..cfcb0a485b 100644 --- a/kernel/nativevalues.ml +++ b/kernel/nativevalues.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Util @@ -61,7 +63,7 @@ type atom = | Acofixe of t array * t array * int * t | Aprod of Name.t * t * (t -> t) | Ameta of metavariable * t - | Aevar of existential * t + | Aevar of Evar.t * t * t array | Aproj of Constant.t * accumulator let accumulate_tag = 0 @@ -132,8 +134,8 @@ let mk_prod_accu s dom codom = let mk_meta_accu mv ty = mk_accu (Ameta (mv,ty)) -let mk_evar_accu ev ty = - mk_accu (Aevar (ev,ty)) +let mk_evar_accu ev ty args = + mk_accu (Aevar (ev,ty,args)) let mk_proj_accu kn c = mk_accu (Aproj (kn,c)) @@ -153,8 +155,7 @@ let accu_nargs (k:accumulator) = let args_of_accu (k:accumulator) = let nargs = accu_nargs k in let f i = (Obj.magic (Obj.field (Obj.magic k) (nargs-i+2)) : t) in - let t = Array.init nargs f in - Array.to_list t + Array.init nargs f let is_accu x = let o = Obj.repr x in @@ -179,11 +180,10 @@ let force_cofix (cofix : t) = let atom = atom_of_accu accu in match atom with | Acofix(typ,norm,pos,f) -> - let f = ref f in - let args = List.rev (args_of_accu accu) in - List.iter (fun x -> f := !f x) args; - let v = !f (Obj.magic ()) in - set_atom_of_accu accu (Acofixe(typ,norm,pos,v)); + let args = args_of_accu accu in + let f = Array.fold_right (fun arg f -> f arg) args f in + let v = f (Obj.magic ()) in + set_atom_of_accu accu (Acofixe(typ,norm,pos,v)); v | Acofixe(_,_,_,v) -> v | _ -> cofix diff --git a/kernel/nativevalues.mli b/kernel/nativevalues.mli index 18b877745b..4a58a3c7da 100644 --- a/kernel/nativevalues.mli +++ b/kernel/nativevalues.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Constr open Names @@ -51,7 +53,7 @@ type atom = | Acofixe of t array * t array * int * t | Aprod of Name.t * t * (t -> t) | Ameta of metavariable * t - | Aevar of existential * t + | Aevar of Evar.t * t (* type *) * t array (* arguments *) | Aproj of Constant.t * accumulator (* Constructors *) @@ -68,7 +70,7 @@ val mk_prod_accu : Name.t -> t -> t -> t val mk_fix_accu : rec_pos -> int -> t array -> t array -> t val mk_cofix_accu : int -> t array -> t array -> t val mk_meta_accu : metavariable -> t -val mk_evar_accu : existential -> t -> t +val mk_evar_accu : Evar.t -> t -> t array -> t val mk_proj_accu : Constant.t -> accumulator -> t val upd_cofix : t -> t -> unit val force_cofix : t -> t @@ -84,7 +86,7 @@ val napply : t -> t array -> t val dummy_value : unit -> t val atom_of_accu : accumulator -> atom -val args_of_accu : accumulator -> t list +val args_of_accu : accumulator -> t array val accu_nargs : accumulator -> int val cast_accu : t -> accumulator diff --git a/kernel/opaqueproof.ml b/kernel/opaqueproof.ml index 45a62d55a1..a484c08e8d 100644 --- a/kernel/opaqueproof.ml +++ b/kernel/opaqueproof.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names @@ -16,7 +18,7 @@ type work_list = (Instance.t * Id.t array) Cmap.t * type cooking_info = { modlist : work_list; - abstract : Context.Named.t * Univ.universe_level_subst * Univ.AUContext.t } + abstract : Context.Named.t * Univ.Instance.t * Univ.AUContext.t } type proofterm = (constr * Univ.ContextSet.t) Future.computation type opaque = | Indirect of substitution list * DirPath.t * int (* subst, lib, index *) diff --git a/kernel/opaqueproof.mli b/kernel/opaqueproof.mli index 20d76ce238..b6ae80b46a 100644 --- a/kernel/opaqueproof.mli +++ b/kernel/opaqueproof.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names @@ -49,7 +51,7 @@ type work_list = (Univ.Instance.t * Id.t array) Cmap.t * type cooking_info = { modlist : work_list; - abstract : Context.Named.t * Univ.universe_level_subst * Univ.AUContext.t } + abstract : Context.Named.t * Univ.Instance.t * Univ.AUContext.t } (* The type has two caveats: 1) cook_constr is defined after diff --git a/kernel/pre_env.ml b/kernel/pre_env.ml index c5254b453a..8ebe48e202 100644 --- a/kernel/pre_env.ml +++ b/kernel/pre_env.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Benjamin Grégoire out of environ.ml for better @@ -15,7 +17,6 @@ open Util open Names -open Constr open Declarations module NamedDecl = Context.Named.Declaration @@ -50,7 +51,7 @@ type stratification = { } type val_kind = - | VKvalue of (values * Id.Set.t) CEphemeron.key + | VKvalue of (Vmvalues.values * Id.Set.t) CEphemeron.key | VKnone type lazy_val = val_kind ref @@ -67,15 +68,18 @@ type named_context_val = { env_named_map : (Context.Named.Declaration.t * lazy_val) Id.Map.t; } +type rel_context_val = { + env_rel_ctx : Context.Rel.t; + env_rel_map : (Context.Rel.Declaration.t * lazy_val) Range.t; +} + type env = { env_globals : globals; (* globals = constants + inductive types + modules + module-types *) env_named_context : named_context_val; (* section variables *) - env_rel_context : Context.Rel.t; - env_rel_val : lazy_val list; + env_rel_context : rel_context_val; env_nb_rel : int; env_stratification : stratification; env_typing_flags : typing_flags; - env_conv_oracle : Conv_oracle.oracle; retroknowledge : Retroknowledge.retroknowledge; indirect_pterms : Opaqueproof.opaquetab; } @@ -85,6 +89,11 @@ let empty_named_context_val = { env_named_map = Id.Map.empty; } +let empty_rel_context_val = { + env_rel_ctx = []; + env_rel_map = Range.empty; +} + let empty_env = { env_globals = { env_constants = Cmap_env.empty; @@ -92,14 +101,12 @@ let empty_env = { env_modules = MPmap.empty; env_modtypes = MPmap.empty}; env_named_context = empty_named_context_val; - env_rel_context = Context.Rel.empty; - env_rel_val = []; + env_rel_context = empty_rel_context_val; env_nb_rel = 0; env_stratification = { env_universes = UGraph.initial_universes; env_engagement = PredicativeSet }; - env_typing_flags = Declareops.safe_flags; - env_conv_oracle = Conv_oracle.empty; + env_typing_flags = Declareops.safe_flags Conv_oracle.empty; retroknowledge = Retroknowledge.initial_retroknowledge; indirect_pterms = Opaqueproof.empty_opaquetab } @@ -108,21 +115,39 @@ let empty_env = { let nb_rel env = env.env_nb_rel +let push_rel_context_val d ctx = { + env_rel_ctx = Context.Rel.add d ctx.env_rel_ctx; + env_rel_map = Range.cons (d, ref VKnone) ctx.env_rel_map; +} + +let match_rel_context_val ctx = match ctx.env_rel_ctx with +| [] -> None +| decl :: rem -> + let (_, lval) = Range.hd ctx.env_rel_map in + let ctx = { env_rel_ctx = rem; env_rel_map = Range.tl ctx.env_rel_map } in + Some (decl, lval, ctx) + let push_rel d env = - let rval = ref VKnone in { env with - env_rel_context = Context.Rel.add d env.env_rel_context; - env_rel_val = rval :: env.env_rel_val; + env_rel_context = push_rel_context_val d env.env_rel_context; env_nb_rel = env.env_nb_rel + 1 } +let lookup_rel n env = + try fst (Range.get env.env_rel_context.env_rel_map (n - 1)) + with Invalid_argument _ -> raise Not_found + let lookup_rel_val n env = - try List.nth env.env_rel_val (n - 1) - with Failure _ -> raise Not_found + try snd (Range.get env.env_rel_context.env_rel_map (n - 1)) + with Invalid_argument _ -> raise Not_found + +let rel_skipn n ctx = { + env_rel_ctx = Util.List.skipn n ctx.env_rel_ctx; + env_rel_map = Range.skipn n ctx.env_rel_map; +} let env_of_rel n env = { env with - env_rel_context = Util.List.skipn n env.env_rel_context; - env_rel_val = Util.List.skipn n env.env_rel_val; + env_rel_context = rel_skipn n env.env_rel_context; env_nb_rel = env.env_nb_rel - n } diff --git a/kernel/pre_env.mli b/kernel/pre_env.mli index 054ae17437..b05074814b 100644 --- a/kernel/pre_env.mli +++ b/kernel/pre_env.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names @@ -36,24 +38,27 @@ type stratification = { type lazy_val -val force_lazy_val : lazy_val -> (values * Id.Set.t) option +val force_lazy_val : lazy_val -> (Vmvalues.values * Id.Set.t) option val dummy_lazy_val : unit -> lazy_val -val build_lazy_val : lazy_val -> (values * Id.Set.t) -> unit +val build_lazy_val : lazy_val -> (Vmvalues.values * Id.Set.t) -> unit type named_context_val = private { env_named_ctx : Context.Named.t; env_named_map : (Context.Named.Declaration.t * lazy_val) Id.Map.t; } +type rel_context_val = private { + env_rel_ctx : Context.Rel.t; + env_rel_map : (Context.Rel.Declaration.t * lazy_val) Range.t; +} + type env = { env_globals : globals; env_named_context : named_context_val; - env_rel_context : Context.Rel.t; - env_rel_val : lazy_val list; + env_rel_context : rel_context_val; env_nb_rel : int; env_stratification : stratification; env_typing_flags : typing_flags; - env_conv_oracle : Conv_oracle.oracle; retroknowledge : Retroknowledge.retroknowledge; indirect_pterms : Opaqueproof.opaquetab; } @@ -64,8 +69,15 @@ val empty_env : env (** Rel context *) +val empty_rel_context_val : rel_context_val +val push_rel_context_val : + Context.Rel.Declaration.t -> rel_context_val -> rel_context_val +val match_rel_context_val : + rel_context_val -> (Context.Rel.Declaration.t * lazy_val * rel_context_val) option + val nb_rel : env -> int val push_rel : Context.Rel.Declaration.t -> env -> env +val lookup_rel : int -> env -> Context.Rel.Declaration.t val lookup_rel_val : int -> env -> lazy_val val env_of_rel : int -> env -> env diff --git a/kernel/reduction.ml b/kernel/reduction.ml index c07ac973b8..e9be1b35df 100644 --- a/kernel/reduction.ml +++ b/kernel/reduction.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created under Benjamin Werner account by Bruno Barras to implement @@ -200,13 +202,9 @@ let is_cumul = function CUMUL -> true | CONV -> false type 'a universe_compare = { (* Might raise NotConvertible *) - compare : env -> conv_pb -> Sorts.t -> Sorts.t -> 'a -> 'a; + compare_sorts : env -> conv_pb -> Sorts.t -> Sorts.t -> 'a -> 'a; compare_instances: flex:bool -> Univ.Instance.t -> Univ.Instance.t -> 'a -> 'a; - conv_inductives : conv_pb -> (Declarations.mutual_inductive_body * int) -> Univ.Instance.t -> int -> - Univ.Instance.t -> int -> 'a -> 'a; - conv_constructors : (Declarations.mutual_inductive_body * int * int) -> - Univ.Instance.t -> int -> Univ.Instance.t -> int -> 'a -> 'a; - } + compare_cumul_instances : Univ.Constraint.t -> 'a -> 'a } type 'a universe_state = 'a * 'a universe_compare @@ -215,18 +213,68 @@ type ('a,'b) generic_conversion_function = env -> 'b universe_state -> 'a -> 'a type 'a infer_conversion_function = env -> UGraph.t -> 'a -> 'a -> Univ.Constraint.t let sort_cmp_universes env pb s0 s1 (u, check) = - (check.compare env pb s0 s1 u, check) + (check.compare_sorts env pb s0 s1 u, check) (* [flex] should be true for constants, false for inductive types and constructors. *) let convert_instances ~flex u u' (s, check) = (check.compare_instances ~flex u u' s, check) - -let convert_inductives cv_pb ind u1 sv1 u2 sv2 (s, check) = - (check.conv_inductives cv_pb ind u1 sv1 u2 sv2 s, check) -let convert_constructors cons u1 sv1 u2 sv2 (s, check) = - (check.conv_constructors cons u1 sv1 u2 sv2 s, check) +let get_cumulativity_constraints cv_pb cumi u u' = + match cv_pb with + | CONV -> + Univ.ACumulativityInfo.eq_constraints cumi u u' Univ.Constraint.empty + | CUMUL -> + Univ.ACumulativityInfo.leq_constraints cumi u u' Univ.Constraint.empty + +let inductive_cumulativity_arguments (mind,ind) = + mind.Declarations.mind_nparams + + mind.Declarations.mind_packets.(ind).Declarations.mind_nrealargs + +let convert_inductives_gen cmp_instances cmp_cumul cv_pb (mind,ind) nargs u1 u2 s = + match mind.Declarations.mind_universes with + | Declarations.Monomorphic_ind _ -> + assert (Univ.Instance.length u1 = 0 && Univ.Instance.length u2 = 0); + s + | Declarations.Polymorphic_ind _ -> + cmp_instances u1 u2 s + | Declarations.Cumulative_ind cumi -> + let num_param_arity = inductive_cumulativity_arguments (mind,ind) in + if not (Int.equal num_param_arity nargs) then + cmp_instances u1 u2 s + else + let csts = get_cumulativity_constraints cv_pb cumi u1 u2 in + cmp_cumul csts s + +let convert_inductives cv_pb ind nargs u1 u2 (s, check) = + convert_inductives_gen (check.compare_instances ~flex:false) check.compare_cumul_instances + cv_pb ind nargs u1 u2 s, check + +let constructor_cumulativity_arguments (mind, ind, ctor) = + let nparamsctxt = + mind.Declarations.mind_nparams + + mind.Declarations.mind_packets.(ind).Declarations.mind_nrealargs + (* Context.Rel.length mind.Declarations.mind_params_ctxt *) in + nparamsctxt + mind.Declarations.mind_packets.(ind).Declarations.mind_consnrealargs.(ctor - 1) + +let convert_constructors_gen cmp_instances cmp_cumul (mind, ind, cns) nargs u1 u2 s = + match mind.Declarations.mind_universes with + | Declarations.Monomorphic_ind _ -> + assert (Univ.Instance.length u1 = 0 && Univ.Instance.length u2 = 0); + s + | Declarations.Polymorphic_ind _ -> + cmp_instances u1 u2 s + | Declarations.Cumulative_ind cumi -> + let num_cnstr_args = constructor_cumulativity_arguments (mind,ind,cns) in + if not (Int.equal num_cnstr_args nargs) then + cmp_instances u1 u2 s + else + let csts = get_cumulativity_constraints CONV cumi u1 u2 in + cmp_cumul csts s + +let convert_constructors ctor nargs u1 u2 (s, check) = + convert_constructors_gen (check.compare_instances ~flex:false) check.compare_cumul_instances + ctor nargs u1 u2 s, check let conv_table_key infos k1 k2 cuniv = if k1 == k2 then cuniv else @@ -308,17 +356,6 @@ let in_whnf (t,stk) = | (FFlex _ | FProd _ | FEvar _ | FInd _ | FAtom _ | FRel _ | FProj _) -> true | FLOCKED -> assert false -let unfold_projection infos p c = - let unf = Projection.unfolded p in - if unf || RedFlags.red_set infos.i_flags (RedFlags.fCONST (Projection.constant p)) then - (match try Some (lookup_projection p (info_env infos)) with Not_found -> None with - | Some pb -> - let s = Zproj (pb.Declarations.proj_npars, pb.Declarations.proj_arg, - Projection.constant p) in - Some (c, s) - | None -> None) - else None - (* Conversion between [lft1]term1 and [lft2]term2 *) let rec ccnv cv_pb l2r infos lft1 lft2 term1 term2 cuniv = eqappr cv_pb l2r infos (lft1, (term1,[])) (lft2, (term2,[])) cuniv @@ -336,9 +373,8 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = if in_whnf st1' then (st1',st2') else whd_both st1' st2' in let ((hd1,v1),(hd2,v2)) = whd_both st1 st2 in let appr1 = (lft1,(hd1,v1)) and appr2 = (lft2,(hd2,v2)) in - (* compute the lifts that apply to the head of the term (hd1 and hd2) *) - let el1 = el_stack lft1 v1 in - let el2 = el_stack lft2 v2 in + (** We delay the computation of the lifts that apply to the head of the term + with [el_stack] inside the branches where they are actually used. *) match (fterm_of hd1, fterm_of hd2) with (* case of leaves *) | (FAtom a1, FAtom a2) -> @@ -354,6 +390,8 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = | _ -> raise NotConvertible) | (FEvar ((ev1,args1),env1), FEvar ((ev2,args2),env2)) -> if Evar.equal ev1 ev2 then + let el1 = el_stack lft1 v1 in + let el2 = el_stack lft2 v2 in let cuniv = convert_stacks l2r infos lft1 lft2 v1 v2 cuniv in convert_vect l2r infos el1 el2 (Array.map (mk_clos env1) args1) @@ -362,6 +400,8 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = (* 2 index known to be bound to no constant *) | (FRel n, FRel m) -> + let el1 = el_stack lft1 v1 in + let el2 = el_stack lft2 v2 in if Int.equal (reloc_rel n el1) (reloc_rel m el2) then convert_stacks l2r infos lft1 lft2 v1 v2 cuniv else raise NotConvertible @@ -396,25 +436,27 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = (* Projections: prefer unfolding to first-order unification, which will happen naturally if the terms c1, c2 are not in constructor form *) - (match unfold_projection infos p1 c1 with - | Some (def1,s1) -> - eqappr cv_pb l2r infos (lft1, (def1, (s1 :: v1))) appr2 cuniv + (match unfold_projection infos p1 with + | Some s1 -> + eqappr cv_pb l2r infos (lft1, (c1, (s1 :: v1))) appr2 cuniv | None -> - match unfold_projection infos p2 c2 with - | Some (def2,s2) -> - eqappr cv_pb l2r infos appr1 (lft2, (def2, (s2 :: v2))) cuniv + match unfold_projection infos p2 with + | Some s2 -> + eqappr cv_pb l2r infos appr1 (lft2, (c2, (s2 :: v2))) cuniv | None -> if Constant.equal (Projection.constant p1) (Projection.constant p2) && compare_stack_shape v1 v2 then + let el1 = el_stack lft1 v1 in + let el2 = el_stack lft2 v2 in let u1 = ccnv CONV l2r infos el1 el2 c1 c2 cuniv in convert_stacks l2r infos lft1 lft2 v1 v2 u1 else (* Two projections in WHNF: unfold *) raise NotConvertible) | (FProj (p1,c1), t2) -> - (match unfold_projection infos p1 c1 with - | Some (def1,s1) -> - eqappr cv_pb l2r infos (lft1, (def1, (s1 :: v1))) appr2 cuniv + (match unfold_projection infos p1 with + | Some s1 -> + eqappr cv_pb l2r infos (lft1, (c1, (s1 :: v1))) appr2 cuniv | None -> (match t2 with | FFlex fl2 -> @@ -425,9 +467,9 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = | _ -> raise NotConvertible)) | (t1, FProj (p2,c2)) -> - (match unfold_projection infos p2 c2 with - | Some (def2,s2) -> - eqappr cv_pb l2r infos appr1 (lft2, (def2, (s2 :: v2))) cuniv + (match unfold_projection infos p2 with + | Some s2 -> + eqappr cv_pb l2r infos appr1 (lft2, (c2, (s2 :: v2))) cuniv | None -> (match t1 with | FFlex fl1 -> @@ -445,6 +487,8 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = anomaly (Pp.str "conversion was given ill-typed terms (FLambda)."); let (_,ty1,bd1) = destFLambda mk_clos hd1 in let (_,ty2,bd2) = destFLambda mk_clos hd2 in + let el1 = el_stack lft1 v1 in + let el2 = el_stack lft2 v2 in let cuniv = ccnv CONV l2r infos el1 el2 ty1 ty2 cuniv in ccnv CONV l2r infos (el_lift el1) (el_lift el2) bd1 bd2 cuniv @@ -452,6 +496,8 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = if not (is_empty_stack v1 && is_empty_stack v2) then anomaly (Pp.str "conversion was given ill-typed terms (FProd)."); (* Luo's system *) + let el1 = el_stack lft1 v1 in + let el2 = el_stack lft2 v2 in let cuniv = ccnv CONV l2r infos el1 el2 c1 c'1 cuniv in ccnv cv_pb l2r infos (el_lift el1) (el_lift el2) c2 c'2 cuniv @@ -479,7 +525,13 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = | (FFlex fl1, c2) -> (match unfold_reference infos fl1 with | Some def1 -> - eqappr cv_pb l2r infos (lft1, (def1, v1)) appr2 cuniv + (** By virtue of the previous case analyses, we know [c2] is rigid. + Conversion check to rigid terms eventually implies full weak-head + reduction, so instead of repeatedly performing small-step + unfoldings, we perform reduction with all flags on. *) + let all = RedFlags.red_add_transparent all (RedFlags.red_transparent (info_flags infos)) in + let r1 = whd_stack (infos_with_reds infos all) def1 v1 in + eqappr cv_pb l2r infos (lft1, r1) appr2 cuniv | None -> match c2 with | FConstruct ((ind2,j2),u2) -> @@ -493,7 +545,10 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = | (c1, FFlex fl2) -> (match unfold_reference infos fl2 with | Some def2 -> - eqappr cv_pb l2r infos appr1 (lft2, (def2, v2)) cuniv + (** Symmetrical case of above. *) + let all = RedFlags.red_add_transparent all (RedFlags.red_transparent (info_flags infos)) in + let r2 = whd_stack (infos_with_reds infos all) def2 v2 in + eqappr cv_pb l2r infos appr1 (lft2, r2) cuniv | None -> match c1 with | FConstruct ((ind1,j1),u1) -> @@ -511,15 +566,12 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = convert_stacks l2r infos lft1 lft2 v1 v2 cuniv else let mind = Environ.lookup_mind (fst ind1) (info_env infos) in - let cuniv = - match mind.Declarations.mind_universes with - | Declarations.Monomorphic_ind _ | Declarations.Polymorphic_ind _ -> - convert_instances ~flex:false u1 u2 cuniv - | Declarations.Cumulative_ind cumi -> - convert_inductives cv_pb (mind, snd ind1) u1 (CClosure.stack_args_size v1) - u2 (CClosure.stack_args_size v2) cuniv - in - convert_stacks l2r infos lft1 lft2 v1 v2 cuniv + let nargs = CClosure.stack_args_size v1 in + if not (Int.equal nargs (CClosure.stack_args_size v2)) + then raise NotConvertible + else + let cuniv = convert_inductives cv_pb (mind, snd ind1) nargs u1 u2 cuniv in + convert_stacks l2r infos lft1 lft2 v1 v2 cuniv else raise NotConvertible | (FConstruct ((ind1,j1),u1), FConstruct ((ind2,j2),u2)) -> @@ -529,16 +581,12 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = convert_stacks l2r infos lft1 lft2 v1 v2 cuniv else let mind = Environ.lookup_mind (fst ind1) (info_env infos) in - let cuniv = - match mind.Declarations.mind_universes with - | Declarations.Monomorphic_ind _ | Declarations.Polymorphic_ind _ -> - convert_instances ~flex:false u1 u2 cuniv - | Declarations.Cumulative_ind _ -> - convert_constructors - (mind, snd ind1, j1) u1 (CClosure.stack_args_size v1) - u2 (CClosure.stack_args_size v2) cuniv - in - convert_stacks l2r infos lft1 lft2 v1 v2 cuniv + let nargs = CClosure.stack_args_size v1 in + if not (Int.equal nargs (CClosure.stack_args_size v2)) + then raise NotConvertible + else + let cuniv = convert_constructors (mind, snd ind1, j1) nargs u1 u2 cuniv in + convert_stacks l2r infos lft1 lft2 v1 v2 cuniv else raise NotConvertible (* Eta expansion of records *) @@ -564,6 +612,8 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = let fty2 = Array.map (mk_clos e2) tys2 in let fcl1 = Array.map (mk_clos (subs_liftn n e1)) cl1 in let fcl2 = Array.map (mk_clos (subs_liftn n e2)) cl2 in + let el1 = el_stack lft1 v1 in + let el2 = el_stack lft2 v2 in let cuniv = convert_vect l2r infos el1 el2 fty1 fty2 cuniv in let cuniv = convert_vect l2r infos @@ -579,6 +629,8 @@ and eqappr cv_pb l2r infos (lft1,st1) (lft2,st2) cuniv = let fty2 = Array.map (mk_clos e2) tys2 in let fcl1 = Array.map (mk_clos (subs_liftn n e1)) cl1 in let fcl2 = Array.map (mk_clos (subs_liftn n e2)) cl2 in + let el1 = el_stack lft1 v1 in + let el2 = el_stack lft2 v2 in let cuniv = convert_vect l2r infos el1 el2 fty1 fty2 cuniv in let cuniv = convert_vect l2r infos @@ -655,84 +707,14 @@ let check_convert_instances ~flex u u' univs = else raise NotConvertible (* general conversion and inference functions *) -let infer_check_conv_inductives - infer_check_convert_instances - infer_check_inductive_instances - cv_pb (mind, ind) u1 sv1 u2 sv2 univs = - match mind.Declarations.mind_universes with - | Declarations.Monomorphic_ind _ | Declarations.Polymorphic_ind _ -> - infer_check_convert_instances ~flex:false u1 u2 univs - | Declarations.Cumulative_ind cumi -> - let num_param_arity = - mind.Declarations.mind_nparams + mind.Declarations.mind_packets.(ind).Declarations.mind_nrealargs - in - if not (num_param_arity = sv1 && num_param_arity = sv2) then - infer_check_convert_instances ~flex:false u1 u2 univs - else - infer_check_inductive_instances cv_pb cumi u1 u2 univs - -let infer_check_conv_constructors - infer_check_convert_instances - infer_check_inductive_instances - (mind, ind, cns) u1 sv1 u2 sv2 univs = - match mind.Declarations.mind_universes with - | Declarations.Monomorphic_ind _ | Declarations.Polymorphic_ind _ -> - infer_check_convert_instances ~flex:false u1 u2 univs - | Declarations.Cumulative_ind cumi -> - let num_cnstr_args = - let nparamsctxt = - mind.Declarations.mind_nparams + mind.Declarations.mind_packets.(ind).Declarations.mind_nrealargs - (* Context.Rel.length mind.Declarations.mind_params_ctxt *) in - nparamsctxt + mind.Declarations.mind_packets.(ind).Declarations.mind_consnrealargs.(cns - 1) - in - if not (num_cnstr_args = sv1 && num_cnstr_args = sv2) then - infer_check_convert_instances ~flex:false u1 u2 univs - else - infer_check_inductive_instances CONV cumi u1 u2 univs - -let check_inductive_instances cv_pb cumi u u' univs = - let length_ind_instance = - Univ.AUContext.size (Univ.ACumulativityInfo.univ_context cumi) - in - let ind_subtypctx = Univ.ACumulativityInfo.subtyp_context cumi in - if not ((length_ind_instance = Univ.Instance.length u) && - (length_ind_instance = Univ.Instance.length u')) then - anomaly (Pp.str "Invalid inductive subtyping encountered!") - else - let comp_cst = - let comp_subst = (Univ.Instance.append u u') in - Univ.AUContext.instantiate comp_subst ind_subtypctx - in - let comp_cst = - match cv_pb with - CONV -> - let comp_cst' = - let comp_subst = (Univ.Instance.append u' u) in - Univ.AUContext.instantiate comp_subst ind_subtypctx - in - Univ.Constraint.union comp_cst comp_cst' - | CUMUL -> comp_cst - in - if (UGraph.check_constraints comp_cst univs) then univs - else raise NotConvertible - -let check_conv_inductives cv_pb ind u1 sv1 u2 sv2 univs = - infer_check_conv_inductives - check_convert_instances - check_inductive_instances - cv_pb ind u1 sv1 u2 sv2 univs - -let check_conv_constructors cns u1 sv1 u2 sv2 univs = - infer_check_conv_constructors - check_convert_instances - check_inductive_instances - cns u1 sv1 u2 sv2 univs +let check_inductive_instances csts univs = + if (UGraph.check_constraints csts univs) then univs + else raise NotConvertible let checked_universes = - { compare = checked_sort_cmp_universes; + { compare_sorts = checked_sort_cmp_universes; compare_instances = check_convert_instances; - conv_inductives = check_conv_inductives; - conv_constructors = check_conv_constructors} + compare_cumul_instances = check_inductive_instances; } let infer_eq (univs, cstrs as cuniv) u u' = if UGraph.check_eq univs u u' then cuniv @@ -775,49 +757,13 @@ let infer_convert_instances ~flex u u' (univs,cstrs) = else Univ.enforce_eq_instances u u' cstrs in (univs, cstrs') -let infer_inductive_instances cv_pb cumi u u' (univs, cstrs) = - let length_ind_instance = - Univ.AUContext.size (Univ.ACumulativityInfo.univ_context cumi) - in - let ind_subtypctx = Univ.ACumulativityInfo.subtyp_context cumi in - if not ((length_ind_instance = Univ.Instance.length u) && - (length_ind_instance = Univ.Instance.length u')) then - anomaly (Pp.str "Invalid inductive subtyping encountered!") - else - let comp_cst = - let comp_subst = (Univ.Instance.append u u') in - Univ.AUContext.instantiate comp_subst ind_subtypctx - in - let comp_cst = - match cv_pb with - CONV -> - let comp_cst' = - let comp_subst = (Univ.Instance.append u' u) in - Univ.AUContext.instantiate comp_subst ind_subtypctx - in - Univ.Constraint.union comp_cst comp_cst' - | CUMUL -> comp_cst - in - (univs, Univ.Constraint.union cstrs comp_cst) - - -let infer_conv_inductives cv_pb ind u1 sv1 u2 sv2 univs = - infer_check_conv_inductives - infer_convert_instances - infer_inductive_instances - cv_pb ind u1 sv1 u2 sv2 univs - -let infer_conv_constructors cns u1 sv1 u2 sv2 univs = - infer_check_conv_constructors - infer_convert_instances - infer_inductive_instances - cns u1 sv1 u2 sv2 univs - -let inferred_universes : (UGraph.t * Univ.Constraint.t) universe_compare = - { compare = infer_cmp_universes; +let infer_inductive_instances csts (univs,csts') = + (univs, Univ.Constraint.union csts csts') + +let inferred_universes : (UGraph.t * Univ.Constraint.t) universe_compare = + { compare_sorts = infer_cmp_universes; compare_instances = infer_convert_instances; - conv_inductives = infer_conv_inductives; - conv_constructors = infer_conv_constructors} + compare_cumul_instances = infer_inductive_instances; } let gen_conv cv_pb l2r reds env evars univs t1 t2 = let b = @@ -938,6 +884,18 @@ let hnf_prod_app env t n = let hnf_prod_applist env t nl = List.fold_left (hnf_prod_app env) t nl +let hnf_prod_applist_assum env n c l = + let rec app n subst t l = + if Int.equal n 0 then + if l == [] then substl subst t + else anomaly (Pp.str "Too many arguments.") + else match kind (whd_allnolet env t), l with + | Prod(_,_,c), arg::l -> app (n-1) (arg::subst) c l + | LetIn(_,b,_,c), _ -> app (n-1) (substl subst b::subst) c l + | _, [] -> anomaly (Pp.str "Not enough arguments.") + | _ -> anomaly (Pp.str "Not enough prod/let's.") in + app n [] c l + (* Dealing with arities *) let dest_prod env = @@ -962,7 +920,6 @@ let dest_prod_assum env = | LetIn (x,b,t,c) -> let d = LocalDef (x,b,t) in prodec_rec (push_rel d env) (Context.Rel.add d l) c - | Cast (c,_,_) -> prodec_rec env l c | _ -> let rty' = whd_all env rty in if Constr.equal rty' rty then l, rty @@ -980,7 +937,6 @@ let dest_lam_assum env = | LetIn (x,b,t,c) -> let d = LocalDef (x,b,t) in lamec_rec (push_rel d env) (Context.Rel.add d l) c - | Cast (c,_,_) -> lamec_rec env l c | _ -> l,rty in lamec_rec env Context.Rel.empty diff --git a/kernel/reduction.mli b/kernel/reduction.mli index 573e4c8bde..ad52c93f62 100644 --- a/kernel/reduction.mli +++ b/kernel/reduction.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Constr @@ -35,15 +37,11 @@ type 'a extended_conversion_function = type conv_pb = CONV | CUMUL -type 'a universe_compare = +type 'a universe_compare = { (* Might raise NotConvertible *) - compare : env -> conv_pb -> Sorts.t -> Sorts.t -> 'a -> 'a; + compare_sorts : env -> conv_pb -> Sorts.t -> Sorts.t -> 'a -> 'a; compare_instances: flex:bool -> Univ.Instance.t -> Univ.Instance.t -> 'a -> 'a; - conv_inductives : conv_pb -> (Declarations.mutual_inductive_body * int) -> Univ.Instance.t -> int -> - Univ.Instance.t -> int -> 'a -> 'a; - conv_constructors : (Declarations.mutual_inductive_body * int * int) -> - Univ.Instance.t -> int -> Univ.Instance.t -> int -> 'a -> 'a; - } + compare_cumul_instances : Univ.Constraint.t -> 'a -> 'a } type 'a universe_state = 'a * 'a universe_compare @@ -51,6 +49,12 @@ type ('a,'b) generic_conversion_function = env -> 'b universe_state -> 'a -> 'a type 'a infer_conversion_function = env -> UGraph.t -> 'a -> 'a -> Univ.Constraint.t +val get_cumulativity_constraints : conv_pb -> Univ.ACumulativityInfo.t -> + Univ.Instance.t -> Univ.Instance.t -> Univ.Constraint.t + +val inductive_cumulativity_arguments : (Declarations.mutual_inductive_body * int) -> int +val constructor_cumulativity_arguments : (Declarations.mutual_inductive_body * int * int) -> int + val sort_cmp_universes : env -> conv_pb -> Sorts.t -> Sorts.t -> 'a * 'a universe_compare -> 'a * 'a universe_compare @@ -103,6 +107,12 @@ val beta_app : constr -> constr -> constr (** Pseudo-reduction rule Prod(x,A,B) a --> B[x\a] *) val hnf_prod_applist : env -> types -> constr list -> types +(** In [hnf_prod_applist_assum n c args], [c] is supposed to (whd-)reduce to + the form [∀Γ.t] with [Γ] of length [n] and possibly with let-ins; it + returns [t] with the assumptions of [Γ] instantiated by [args] and + the local definitions of [Γ] expanded. *) +val hnf_prod_applist_assum : env -> int -> types -> constr list -> types + (** Compatibility alias for Term.lambda_appvect_assum *) val betazeta_appvect : int -> constr -> constr array -> constr diff --git a/kernel/retroknowledge.ml b/kernel/retroknowledge.ml index 88cf93acc9..d76b05a8bb 100644 --- a/kernel/retroknowledge.ml +++ b/kernel/retroknowledge.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Arnaud Spiwack, May 2007 *) @@ -102,20 +104,18 @@ module Reactive = Map.Make (EntryOrd) type reactive_info = {(*information required by the compiler of the VM *) vm_compiling : (*fastcomputation flag -> continuation -> result *) - (bool -> Cbytecodes.comp_env -> constr array -> - int->Cbytecodes.bytecodes->Cbytecodes.bytecodes) + (bool -> Cinstr.lambda array -> Cinstr.lambda) option; vm_constant_static : (*fastcomputation flag -> constructor -> args -> result*) - (bool->constr array->Cbytecodes.structured_constant) + (bool -> constr array -> Cinstr.lambda) option; vm_constant_dynamic : (*fastcomputation flag -> constructor -> reloc -> args -> sz -> cont -> result *) - (bool->Cbytecodes.comp_env->Cbytecodes.block array->int-> - Cbytecodes.bytecodes->Cbytecodes.bytecodes) + (bool -> Cinstr.lambda array -> Cinstr.lambda) option; (* fastcomputation flag -> cont -> result *) - vm_before_match : (bool -> Cbytecodes.bytecodes -> Cbytecodes.bytecodes) option; + vm_before_match : (bool -> Cinstr.lambda -> Cinstr.lambda) option; (* tag (= compiled int for instance) -> result *) vm_decompile_const : (int -> constr) option; diff --git a/kernel/retroknowledge.mli b/kernel/retroknowledge.mli index e4d78ba14f..0334e7a9e9 100644 --- a/kernel/retroknowledge.mli +++ b/kernel/retroknowledge.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names @@ -82,9 +84,8 @@ val initial_retroknowledge : retroknowledge and the continuation cont of the bytecode compilation returns the compilation of id in cont if it has a specific treatment or raises Not_found if id should be compiled as usual *) -val get_vm_compiling_info : retroknowledge -> entry -> Cbytecodes.comp_env -> - constr array -> - int -> Cbytecodes.bytecodes-> Cbytecodes.bytecodes +val get_vm_compiling_info : retroknowledge -> entry -> + Cinstr.lambda array -> Cinstr.lambda (*Given an identifier id (usually Construct _) and its argument array, returns a function that tries an ad-hoc optimisated compilation (in the case of the 31-bit integers it means compiling them @@ -93,8 +94,7 @@ val get_vm_compiling_info : retroknowledge -> entry -> Cbytecodes.comp_env -> CBytecodes.NotClosed if the term is not a closed constructor pattern (a constant for the compiler) *) val get_vm_constant_static_info : retroknowledge -> entry -> - constr array -> - Cbytecodes.structured_constant + constr array -> Cinstr.lambda (*Given an identifier id (usually Construct _ ) its argument array and a continuation, returns the compiled version @@ -102,16 +102,14 @@ val get_vm_constant_static_info : retroknowledge -> entry -> 31-bit integers, that would be the dynamic compilation into integers) or raises Not_found if id should be compiled as usual *) val get_vm_constant_dynamic_info : retroknowledge -> entry -> - Cbytecodes.comp_env -> - Cbytecodes.block array -> - int -> Cbytecodes.bytecodes -> Cbytecodes.bytecodes + Cinstr.lambda array -> Cinstr.lambda (** Given a type identifier, this function is used before compiling a match over this type. In the case of 31-bit integers for instance, it is used to add the instruction sequence which would perform a dynamic decompilation in case the argument of the match is not in coq representation *) -val get_vm_before_match_info : retroknowledge -> entry -> Cbytecodes.bytecodes - -> Cbytecodes.bytecodes +val get_vm_before_match_info : retroknowledge -> entry -> Cinstr.lambda + -> Cinstr.lambda (** Given a type identifier, this function is used by pretyping/vnorm.ml to recover the elements of that type from their compiled form if it's non @@ -148,20 +146,18 @@ val find : retroknowledge -> field -> entry type reactive_info = {(*information required by the compiler of the VM *) vm_compiling : (*fastcomputation flag -> continuation -> result *) - (bool->Cbytecodes.comp_env->constr array -> - int->Cbytecodes.bytecodes->Cbytecodes.bytecodes) + (bool -> Cinstr.lambda array -> Cinstr.lambda) option; vm_constant_static : (*fastcomputation flag -> constructor -> args -> result*) - (bool->constr array->Cbytecodes.structured_constant) + (bool -> constr array -> Cinstr.lambda) option; vm_constant_dynamic : (*fastcomputation flag -> constructor -> reloc -> args -> sz -> cont -> result *) - (bool->Cbytecodes.comp_env->Cbytecodes.block array->int-> - Cbytecodes.bytecodes->Cbytecodes.bytecodes) + (bool -> Cinstr.lambda array -> Cinstr.lambda) option; (* fastcomputation flag -> cont -> result *) - vm_before_match : (bool -> Cbytecodes.bytecodes -> Cbytecodes.bytecodes) option; + vm_before_match : (bool -> Cinstr.lambda -> Cinstr.lambda) option; (* tag (= compiled int for instance) -> result *) vm_decompile_const : (int -> constr) option; diff --git a/kernel/safe_typing.ml b/kernel/safe_typing.ml index 93b8e278fa..de2a890fb5 100644 --- a/kernel/safe_typing.ml +++ b/kernel/safe_typing.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Jean-Christophe Filliâtre as part of the rebuilding of diff --git a/kernel/safe_typing.mli b/kernel/safe_typing.mli index 757b803a39..4078a9092d 100644 --- a/kernel/safe_typing.mli +++ b/kernel/safe_typing.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/sorts.ml b/kernel/sorts.ml index 07688840dd..daeb90be7f 100644 --- a/kernel/sorts.ml +++ b/kernel/sorts.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Univ diff --git a/kernel/sorts.mli b/kernel/sorts.mli index 65ea751386..1bbde26083 100644 --- a/kernel/sorts.mli +++ b/kernel/sorts.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (** {6 The sorts of CCI. } *) diff --git a/kernel/subtyping.ml b/kernel/subtyping.ml index d0d5cb1d56..8cf588c3ea 100644 --- a/kernel/subtyping.ml +++ b/kernel/subtyping.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Jacek Chrzaszcz, Aug 2002 as part of the implementation of @@ -118,6 +120,15 @@ let check_inductive cst env mp1 l info1 mp2 mib2 spec2 subst1 subst2 reso1 reso2 let env = check_polymorphic_instance error env auctx auctx' in env, Univ.make_abstract_instance auctx' | Cumulative_ind cumi, Cumulative_ind cumi' -> + (** Currently there is no way to control variance of inductive types, but + just in case we require that they are in a subtyping relation. *) + let () = + let v = ACumulativityInfo.variance cumi in + let v' = ACumulativityInfo.variance cumi' in + if not (Array.for_all2 Variance.check_subtype v' v) then + CErrors.anomaly Pp.(str "Variance of " ++ KerName.print kn1 ++ + str " is not compatible with the one of " ++ KerName.print kn2) + in let auctx = Univ.ACumulativityInfo.univ_context cumi in let auctx' = Univ.ACumulativityInfo.univ_context cumi' in let env = check_polymorphic_instance error env auctx auctx' in diff --git a/kernel/subtyping.mli b/kernel/subtyping.mli index 67df3759ec..4e755e42ff 100644 --- a/kernel/subtyping.mli +++ b/kernel/subtyping.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Univ diff --git a/kernel/term.ml b/kernel/term.ml index aa88059524..403ed881c5 100644 --- a/kernel/term.ml +++ b/kernel/term.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Util @@ -92,7 +94,7 @@ type ('constr, 'types, 'sort, 'univs) kind_of_term = | CoFix of ('constr, 'types) pcofixpoint | Proj of projection * 'constr -type values = Constr.values +type values = Vmvalues.values (**********************************************************************) (** Redeclaration of functions from module Constr *) @@ -352,10 +354,11 @@ let lambda_applist_assum n c l = let rec app n subst t l = if Int.equal n 0 then if l == [] then substl subst t - else anomaly (Pp.str "Not enough arguments.") + else anomaly (Pp.str "Too many arguments.") else match kind_of_term t, l with | Lambda(_,_,c), arg::l -> app (n-1) (arg::subst) c l | LetIn(_,b,_,c), _ -> app (n-1) (substl subst b::subst) c l + | _, [] -> anomaly (Pp.str "Not enough arguments.") | _ -> anomaly (Pp.str "Not enough lambda/let's.") in app n [] c l @@ -377,10 +380,11 @@ let prod_applist_assum n c l = let rec app n subst t l = if Int.equal n 0 then if l == [] then substl subst t - else anomaly (Pp.str "Not enough arguments.") + else anomaly (Pp.str "Too many arguments.") else match kind_of_term t, l with | Prod(_,_,c), arg::l -> app (n-1) (arg::subst) c l | LetIn(_,b,_,c), _ -> app (n-1) (substl subst b::subst) c l + | _, [] -> anomaly (Pp.str "Not enough arguments.") | _ -> anomaly (Pp.str "Not enough prod/let's.") in app n [] c l diff --git a/kernel/term.mli b/kernel/term.mli index f5cb72f4e8..ba521978e7 100644 --- a/kernel/term.mli +++ b/kernel/term.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names @@ -242,7 +244,7 @@ val lambda_applist : constr -> constr list -> constr val lambda_appvect : constr -> constr array -> constr (** In [lambda_applist_assum n c args], [c] is supposed to have the - form [λΓ.c] with [Γ] of length [m] and possibly with let-ins; it + form [λΓ.c] with [Γ] of length [n] and possibly with let-ins; it returns [c] with the assumptions of [Γ] instantiated by [args] and the local definitions of [Γ] expanded. *) val lambda_applist_assum : int -> constr -> constr list -> constr @@ -251,15 +253,15 @@ val lambda_appvect_assum : int -> constr -> constr array -> constr (** pseudo-reduction rule *) (** [prod_appvect] [forall (x1:B1;...;xn:Bn), B] [a1...an] @return [B[a1...an]] *) -val prod_appvect : constr -> constr array -> constr -val prod_applist : constr -> constr list -> constr +val prod_appvect : types -> constr array -> types +val prod_applist : types -> constr list -> types (** In [prod_appvect_assum n c args], [c] is supposed to have the - form [∀Γ.c] with [Γ] of length [m] and possibly with let-ins; it + form [∀Γ.c] with [Γ] of length [n] and possibly with let-ins; it returns [c] with the assumptions of [Γ] instantiated by [args] and the local definitions of [Γ] expanded. *) -val prod_appvect_assum : int -> constr -> constr array -> constr -val prod_applist_assum : int -> constr -> constr list -> constr +val prod_appvect_assum : int -> types -> constr array -> types +val prod_applist_assum : int -> types -> constr list -> types (** {5 Other term destructors. } *) @@ -572,8 +574,8 @@ type ('constr, 'types, 'sort, 'univs) kind_of_term = | Proj of projection * 'constr [@@ocaml.deprecated "Alias for Constr.kind_of_term"] -type values = Constr.values -[@@ocaml.deprecated "Alias for Constr.values"] +type values = Vmvalues.values +[@@ocaml.deprecated "Alias for Vmvalues.values"] val hash_constr : Constr.constr -> int [@@ocaml.deprecated "Alias for Constr.hash"] diff --git a/kernel/term_typing.ml b/kernel/term_typing.ml index 2e4426d621..e621a61c76 100644 --- a/kernel/term_typing.ml +++ b/kernel/term_typing.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created by Jacek Chrzaszcz, Aug 2002 as part of the implementation of @@ -223,15 +225,15 @@ let rec unzip ctx j = unzip ctx { j with uj_val = mkApp (mkLambda (n,ty,j.uj_val),arg) } let feedback_completion_typecheck = - let open Feedback in Option.iter (fun state_id -> - feedback ~id:state_id Feedback.Complete) + Feedback.feedback ~id:state_id Feedback.Complete) let abstract_constant_universes = function | Monomorphic_const_entry uctx -> Univ.empty_level_subst, Monomorphic_const uctx | Polymorphic_const_entry uctx -> let sbst, auctx = Univ.abstract_universes uctx in + let sbst = Univ.make_instance_subst sbst in sbst, Polymorphic_const auctx let infer_declaration (type a) ~(trust : a trust) env (dcl : a constant_entry) = @@ -300,21 +302,29 @@ let infer_declaration (type a) ~(trust : a trust) env (dcl : a constant_entry) = let { const_entry_type = typ; const_entry_opaque = opaque } = c in let { const_entry_body = body; const_entry_feedback = feedback_id } = c in let (body, ctx), side_eff = Future.join body in - let poly, univsctx = match c.const_entry_universes with - | Monomorphic_const_entry univs -> false, univs - | Polymorphic_const_entry univs -> true, Univ.ContextSet.of_context univs - in - let ctx = Univ.ContextSet.union univsctx ctx in let body, ctx, _ = match trust with | Pure -> body, ctx, [] | SideEffects _ -> inline_side_effects env body ctx side_eff in - let env = push_context_set ~strict:(not poly) ctx env in - let ctx = if poly - then Polymorphic_const_entry (Univ.ContextSet.to_context ctx) - else Monomorphic_const_entry ctx + let env, usubst, univs = match c.const_entry_universes with + | Monomorphic_const_entry univs -> + let ctx = Univ.ContextSet.union univs ctx in + let env = push_context_set ~strict:true ctx env in + env, Univ.empty_level_subst, Monomorphic_const ctx + | Polymorphic_const_entry uctx -> + (** Ensure not to generate internal constraints in polymorphic mode. + The only way for this to happen would be that either the body + contained deferred universes, or that it contains monomorphic + side-effects. The first property is ruled out by upper layers, + and the second one is ensured by the fact we currently + unconditionally export side-effects from polymorphic definitions, + i.e. [trust] is always [Pure]. *) + let () = assert (Univ.ContextSet.is_empty ctx) in + let env = push_context ~strict:false uctx env in + let sbst, auctx = Univ.abstract_universes uctx in + let sbst = Univ.make_instance_subst sbst in + env, sbst, Polymorphic_const auctx in - let usubst, univs = abstract_constant_universes ctx in let j = infer env body in let typ = match typ with | None -> diff --git a/kernel/term_typing.mli b/kernel/term_typing.mli index 7bc029010f..6a0ff072f5 100644 --- a/kernel/term_typing.mli +++ b/kernel/term_typing.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/type_errors.ml b/kernel/type_errors.ml index 781c6bfbcd..1c323e3ea2 100644 --- a/kernel/type_errors.ml +++ b/kernel/type_errors.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/type_errors.mli b/kernel/type_errors.mli index 72861f6e48..20bf300ac3 100644 --- a/kernel/type_errors.mli +++ b/kernel/type_errors.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/typeops.ml b/kernel/typeops.ml index 4a935f581a..be4c0e1ecc 100644 --- a/kernel/typeops.ml +++ b/kernel/typeops.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open CErrors diff --git a/kernel/typeops.mli b/kernel/typeops.mli index 5584b6ab46..bff40b017f 100644 --- a/kernel/typeops.mli +++ b/kernel/typeops.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names diff --git a/kernel/uGraph.ml b/kernel/uGraph.ml index f1e8d10317..5d1644614d 100644 --- a/kernel/uGraph.ml +++ b/kernel/uGraph.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Pp @@ -833,7 +835,7 @@ let sort_universes g = (** Subtyping of polymorphic contexts *) let check_subtype univs ctxT ctx = - if AUContext.size ctx == AUContext.size ctx then + if AUContext.size ctxT == AUContext.size ctx then let (inst, cst) = UContext.dest (AUContext.repr ctx) in let cstT = UContext.constraints (AUContext.repr ctxT) in let push accu v = add_universe v false accu in diff --git a/kernel/uGraph.mli b/kernel/uGraph.mli index f71d83d853..d4fba63fb3 100644 --- a/kernel/uGraph.mli +++ b/kernel/uGraph.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Univ @@ -41,7 +43,7 @@ val check_constraint : t -> univ_constraint -> bool val check_constraints : Constraint.t -> t -> bool (** Adds a universe to the graph, ensuring it is >= or > Set. - @raises AlreadyDeclared if the level is already declared in the graph. *) + @raise AlreadyDeclared if the level is already declared in the graph. *) exception AlreadyDeclared diff --git a/kernel/univ.ml b/kernel/univ.ml index 8cf9028fb1..584593e2fc 100644 --- a/kernel/univ.ml +++ b/kernel/univ.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (* Created in Caml by Gérard Huet for CoC 4.8 [Dec 1988] *) @@ -266,7 +268,7 @@ struct module Expr = struct type t = Level.t * int - + (* Hashing of expressions *) module ExprHash = struct @@ -487,7 +489,40 @@ struct | [] -> cons a l in List.fold_right (fun a acc -> aux a acc) u [] - + + (** [max_var_pred p u] returns the maximum variable level in [u] satisfying + [p], -1 if not found *) + let rec max_var_pred p u = + let open Level in + match u with + | [] -> -1 + | (v, _) :: u -> + match var_index v with + | Some i when p i -> max i (max_var_pred p u) + | _ -> max_var_pred p u + + let rec remap_var u i j = + let open Level in + match u with + | [] -> [] + | (v, incr) :: u when var_index v = Some i -> + (Level.var j, incr) :: remap_var u i j + | _ :: u -> remap_var u i j + + let rec compact u max_var i = + if i >= max_var then (u,[]) else + let j = max_var_pred (fun j -> j < i) u in + if Int.equal i (j+1) then + let (u,s) = compact u max_var (i+1) in + (u, i :: s) + else + let (u,s) = compact (remap_var u i j) max_var (i+1) in + (u, j+1 :: s) + + let compact u = + let max_var = max_var_pred (fun _ -> true) u in + compact u max_var 0 + (* Returns the formal universe that is greater than the universes u and v. Used to type the products. *) let sup x y = merge_univs x y @@ -686,12 +721,6 @@ let enforce_leq u v c = let enforce_leq_level u v c = if Level.equal u v then c else Constraint.add (u,Le,v) c -let enforce_univ_constraint (u,d,v) = - match d with - | Eq -> enforce_eq u v - | Le -> enforce_leq u v - | Lt -> enforce_leq (super u) v - (* Miscellaneous functions to remove or test local univ assumed to occur in a universe *) @@ -718,15 +747,55 @@ type universe_level_subst = universe_level universe_map (** A full substitution might involve algebraic universes *) type universe_subst = universe universe_map -let level_subst_of f = - fun l -> - try let u = f l in - match Universe.level u with - | None -> l - | Some l -> l - with Not_found -> l - -module Instance : sig +module Variance = +struct + (** A universe position in the instance given to a cumulative + inductive can be the following. Note there is no Contravariant + case because [forall x : A, B <= forall x : A', B'] requires [A = + A'] as opposed to [A' <= A]. *) + type t = Irrelevant | Covariant | Invariant + + let sup x y = + match x, y with + | Irrelevant, s | s, Irrelevant -> s + | Invariant, _ | _, Invariant -> Invariant + | Covariant, Covariant -> Covariant + + let check_subtype x y = match x, y with + | (Irrelevant | Covariant | Invariant), Irrelevant -> true + | Irrelevant, Covariant -> false + | (Covariant | Invariant), Covariant -> true + | (Irrelevant | Covariant), Invariant -> false + | Invariant, Invariant -> true + + let pr = function + | Irrelevant -> str "*" + | Covariant -> str "+" + | Invariant -> str "=" + + let leq_constraint csts variance u u' = + match variance with + | Irrelevant -> csts + | Covariant -> enforce_leq_level u u' csts + | Invariant -> enforce_eq_level u u' csts + + let eq_constraint csts variance u u' = + match variance with + | Irrelevant -> csts + | Covariant | Invariant -> enforce_eq_level u u' csts + + let leq_constraints variance u u' csts = + let len = Array.length u in + assert (len = Array.length u' && len = Array.length variance); + Array.fold_left3 leq_constraint csts variance u u' + + let eq_constraints variance u u' csts = + let len = Array.length u in + assert (len = Array.length u' && len = Array.length variance); + Array.fold_left3 eq_constraint csts variance u u' +end + +module Instance : sig type t = Level.t array val empty : t @@ -746,7 +815,7 @@ module Instance : sig val subst_fn : universe_level_subst_fn -> t -> t - val pr : (Level.t -> Pp.t) -> t -> Pp.t + val pr : (Level.t -> Pp.t) -> ?variance:Variance.t array -> t -> Pp.t val levels : t -> LSet.t end = struct @@ -822,8 +891,12 @@ struct let levels x = LSet.of_array x - let pr = - prvect_with_sep spc + let pr prl ?variance = + let ppu i u = + let v = Option.map (fun v -> v.(i)) variance in + pr_opt_no_spc Variance.pr v ++ prl u + in + prvecti_with_sep spc ppu let equal t u = t == u || @@ -887,9 +960,9 @@ struct let empty = (Instance.empty, Constraint.empty) let is_empty (univs, cst) = Instance.is_empty univs && Constraint.is_empty cst - let pr prl (univs, cst as ctx) = + let pr prl ?variance (univs, cst as ctx) = if is_empty ctx then mt() else - h 0 (Instance.pr prl univs ++ str " |= ") ++ h 0 (v 0 (Constraint.pr prl cst)) + h 0 (Instance.pr prl ?variance univs ++ str " |= ") ++ h 0 (v 0 (Constraint.pr prl cst)) let hcons (univs, cst) = (Instance.hcons univs, hcons_constraints cst) @@ -925,66 +998,42 @@ end type abstract_universe_context = AUContext.t let hcons_abstract_universe_context = AUContext.hcons -(** Universe info for cumulative inductive types: - A context of universe levels - with universe constraints, representing local universe variables - and constraints, together with a context of universe levels with - universe constraints, representing conditions for subtyping used - for inductive types. +(** Universe info for cumulative inductive types: A context of + universe levels with universe constraints, representing local + universe variables and constraints, together with an array of + Variance.t. - This data structure maintains the invariant that the context for - subtyping constraints is exactly twice as big as the context for - universe constraints. *) + This data structure maintains the invariant that the variance + array has the same length as the universe instance. *) module CumulativityInfo = struct - type t = universe_context * universe_context + type t = universe_context * Variance.t array let make x = - if (Instance.length (UContext.instance (snd x))) = - (Instance.length (UContext.instance (fst x))) * 2 then x + if (Instance.length (UContext.instance (fst x))) = + (Array.length (snd x)) then x else anomaly (Pp.str "Invalid subtyping information encountered!") - let empty = (UContext.empty, UContext.empty) - let is_empty (univcst, subtypcst) = UContext.is_empty univcst && UContext.is_empty subtypcst + let empty = (UContext.empty, [||]) + let is_empty (univs, variance) = UContext.is_empty univs && Array.is_empty variance - let halve_context ctx = - let len = Array.length (Instance.to_array ctx) in - let halflen = len / 2 in - (Instance.of_array (Array.sub (Instance.to_array ctx) 0 halflen), - Instance.of_array (Array.sub (Instance.to_array ctx) halflen halflen)) + let pr prl (univs, variance) = + UContext.pr prl ~variance univs - let pr prl (univcst, subtypcst) = - if UContext.is_empty univcst then mt() else - let (ctx, ctx') = halve_context (UContext.instance subtypcst) in - (UContext.pr prl univcst) ++ fnl () ++ fnl () ++ - h 0 (str "~@{" ++ Instance.pr prl ctx ++ str "} <= ~@{" ++ Instance.pr prl ctx' ++ str "} iff ") - ++ fnl () ++ h 0 (v 0 (Constraint.pr prl (UContext.constraints subtypcst))) + let hcons (univs, variance) = (* should variance be hconsed? *) + (UContext.hcons univs, variance) - let hcons (univcst, subtypcst) = - (UContext.hcons univcst, UContext.hcons subtypcst) - - let univ_context (univcst, subtypcst) = univcst - let subtyp_context (univcst, subtypcst) = subtypcst - - let create_trivial_subtyping ctx ctx' = - CArray.fold_left_i - (fun i cst l -> Constraint.add (l, Eq, Array.get ctx' i) cst) - Constraint.empty (Instance.to_array ctx) + let univ_context (univs, subtypcst) = univs + let variance (univs, variance) = variance (** This function takes a universe context representing constraints - of an inductive and a Instance.t of fresh universe names for the - subtyping (with the same length as the context in the given - universe context) and produces a UInfoInd.t that with the - trivial subtyping relation. *) - let from_universe_context univcst freshunivs = - let inst = (UContext.instance univcst) in - assert (Instance.length freshunivs = Instance.length inst); - (univcst, UContext.make (Instance.append inst freshunivs, - create_trivial_subtyping inst freshunivs)) - - let subtyping_susbst (univcst, subtypcst) = - let (ctx, ctx') = (halve_context (UContext.instance subtypcst))in - Array.fold_left2 (fun subst l1 l2 -> LMap.add l1 l2 subst) LMap.empty ctx ctx' + of an inductive and produces a CumulativityInfo.t with the + trivial subtyping relation. *) + let from_universe_context univs = + (univs, Array.init (UContext.size univs) (fun _ -> Variance.Invariant)) + + let leq_constraints (_,variance) u u' csts = Variance.leq_constraints variance u u' csts + let eq_constraints (_,variance) u u' csts = Variance.eq_constraints variance u u' csts end @@ -1128,24 +1177,6 @@ let subst_univs_universe fn ul = List.fold_left (fun acc u -> Universe.merge_univs acc (Universe.tip u)) substs nosubst -let subst_univs_level fn l = - try Some (fn l) - with Not_found -> None - -let subst_univs_constraint fn (u,d,v as c) cstrs = - let u' = subst_univs_level fn u in - let v' = subst_univs_level fn v in - match u', v' with - | None, None -> Constraint.add c cstrs - | Some u, None -> enforce_univ_constraint (u,d,make v) cstrs - | None, Some v -> enforce_univ_constraint (make u,d,v) cstrs - | Some u, Some v -> enforce_univ_constraint (u,d,v) cstrs - -let subst_univs_constraints subst csts = - Constraint.fold - (fun c cstrs -> subst_univs_constraint subst c cstrs) - csts Constraint.empty - let make_instance_subst i = let arr = Instance.to_array i in Array.fold_left_i (fun i acc l -> @@ -1168,12 +1199,11 @@ let abstract_universes ctx = (UContext.constraints ctx) in let ctx = UContext.make (instance, cstrs) in - subst, ctx + instance, ctx -let abstract_cumulativity_info (univcst, substcst) = - let instance, univcst = abstract_universes univcst in - let _, substcst = abstract_universes substcst in - (instance, (univcst, substcst)) +let abstract_cumulativity_info (univs, variance) = + let subst, univs = abstract_universes univs in + subst, (univs, variance) (** Pretty-printing *) diff --git a/kernel/univ.mli b/kernel/univ.mli index 4593944395..ce617932cc 100644 --- a/kernel/univ.mli +++ b/kernel/univ.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) (** Universes. *) @@ -125,6 +127,13 @@ sig val for_all : (Level.t * int -> bool) -> t -> bool val map : (Level.t * int -> 'a) -> t -> 'a list + + (** [compact u] remaps local variables in [u] such that their indices become + consecutive. It returns the new universe and the mapping. + Example: compact [(Var 0, i); (Prop, 0); (Var 2; j))] = + [(Var 0,i); (Prop, 0); (Var 1; j)], [0; 2] + *) + val compact : t -> t * int list end type universe = Universe.t @@ -238,7 +247,22 @@ type universe_level_subst_fn = Level.t -> Level.t type universe_subst = Universe.t universe_map type universe_level_subst = Level.t universe_map -val level_subst_of : universe_subst_fn -> universe_level_subst_fn +module Variance : +sig + (** A universe position in the instance given to a cumulative + inductive can be the following. Note there is no Contravariant + case because [forall x : A, B <= forall x : A', B'] requires [A = + A'] as opposed to [A' <= A]. *) + type t = Irrelevant | Covariant | Invariant + + (** [check_subtype x y] holds if variance [y] is also an instance of [x] *) + val check_subtype : t -> t -> bool + + val sup : t -> t -> t + + val pr : t -> Pp.t + +end (** {6 Universe instances} *) @@ -275,7 +299,7 @@ sig val subst_fn : universe_level_subst_fn -> t -> t (** Substitution by a level-to-level function. *) - val pr : (Level.t -> Pp.t) -> t -> Pp.t + val pr : (Level.t -> Pp.t) -> ?variance:Variance.t array -> t -> Pp.t (** Pretty-printing, no comments *) val levels : t -> LSet.t @@ -349,36 +373,32 @@ end type abstract_universe_context = AUContext.t [@@ocaml.deprecated "Use AUContext.t"] -(** Universe info for inductive types: A context of universe levels - with universe Constraint.t, representing local universe variables - and Constraint.t, together with a context of universe levels with - universe Constraint.t, representing conditions for subtyping used - for inductive types. +(** Universe info for cumulative inductive types: A context of + universe levels with universe constraints, representing local + universe variables and constraints, together with an array of + Variance.t. - This data structure maintains the invariant that the context for - subtyping Constraint.t is exactly twice as big as the context for - universe Constraint.t. *) + This data structure maintains the invariant that the variance + array has the same length as the universe instance. *) module CumulativityInfo : sig type t - val make : UContext.t * UContext.t -> t + val make : UContext.t * Variance.t array -> t val empty : t val is_empty : t -> bool val univ_context : t -> UContext.t - val subtyp_context : t -> UContext.t + val variance : t -> Variance.t array - (** This function takes a universe context representing Constraint.t - of an inductive and a Instance.t of fresh universe names for the - subtyping (with the same length as the context in the given - universe context) and produces a UInfoInd.t that with the - trivial subtyping relation. *) - val from_universe_context : UContext.t -> Instance.t -> t - - val subtyping_susbst : t -> universe_level_subst + (** This function takes a universe context representing constraints + of an inductive and produces a CumulativityInfo.t with the + trivial subtyping relation. *) + val from_universe_context : UContext.t -> t + val leq_constraints : t -> Instance.t constraint_function + val eq_constraints : t -> Instance.t constraint_function end type cumulativity_info = CumulativityInfo.t @@ -389,7 +409,9 @@ sig type t val univ_context : t -> AUContext.t - val subtyp_context : t -> AUContext.t + val variance : t -> Variance.t array + val leq_constraints : t -> Instance.t constraint_function + val eq_constraints : t -> Instance.t constraint_function end type abstract_cumulativity_info = ACumulativityInfo.t @@ -461,18 +483,21 @@ val is_empty_subst : universe_subst -> bool val make_subst : universe_subst -> universe_subst_fn val subst_univs_universe : universe_subst_fn -> Universe.t -> Universe.t -val subst_univs_constraints : universe_subst_fn -> Constraint.t -> Constraint.t +(** Only user in the kernel is template polymorphism. Ideally we get rid of + this code if it goes away. *) (** Substitution of instances *) val subst_instance_instance : Instance.t -> Instance.t -> Instance.t val subst_instance_universe : Instance.t -> Universe.t -> Universe.t val make_instance_subst : Instance.t -> universe_level_subst -val make_inverse_instance_subst : Instance.t -> universe_level_subst +(** Creates [u(0) ↦ 0; ...; u(n-1) ↦ n - 1] out of [u(0); ...; u(n - 1)] *) -val abstract_universes : UContext.t -> universe_level_subst * AUContext.t +val make_inverse_instance_subst : Instance.t -> universe_level_subst -val abstract_cumulativity_info : CumulativityInfo.t -> universe_level_subst * ACumulativityInfo.t +val abstract_universes : UContext.t -> Instance.t * AUContext.t +val abstract_cumulativity_info : CumulativityInfo.t -> Instance.t * ACumulativityInfo.t +(** TODO: move universe abstraction out of the kernel *) val make_abstract_instance : AUContext.t -> Instance.t @@ -480,9 +505,11 @@ val make_abstract_instance : AUContext.t -> Instance.t val pr_constraint_type : constraint_type -> Pp.t val pr_constraints : (Level.t -> Pp.t) -> Constraint.t -> Pp.t -val pr_universe_context : (Level.t -> Pp.t) -> UContext.t -> Pp.t +val pr_universe_context : (Level.t -> Pp.t) -> ?variance:Variance.t array -> + UContext.t -> Pp.t val pr_cumulativity_info : (Level.t -> Pp.t) -> CumulativityInfo.t -> Pp.t -val pr_abstract_universe_context : (Level.t -> Pp.t) -> AUContext.t -> Pp.t +val pr_abstract_universe_context : (Level.t -> Pp.t) -> ?variance:Variance.t array -> + AUContext.t -> Pp.t val pr_abstract_cumulativity_info : (Level.t -> Pp.t) -> ACumulativityInfo.t -> Pp.t val pr_universe_context_set : (Level.t -> Pp.t) -> ContextSet.t -> Pp.t val explain_universe_inconsistency : (Level.t -> Pp.t) -> diff --git a/kernel/vars.ml b/kernel/vars.ml index eae917b5a2..0f588a6302 100644 --- a/kernel/vars.ml +++ b/kernel/vars.ml @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names @@ -235,49 +237,6 @@ let subst_vars subst c = substn_vars 1 subst c (** Universe substitutions *) open Constr -let subst_univs_fn_puniverses fn = - let f = Univ.Instance.subst_fn fn in - fun ((c, u) as x) -> let u' = f u in if u' == u then x else (c, u') - -let subst_univs_fn_constr f c = - let changed = ref false in - let fu = Univ.subst_univs_universe f in - let fi = Univ.Instance.subst_fn (Univ.level_subst_of f) in - let rec aux t = - match kind t with - | Sort (Sorts.Type u) -> - let u' = fu u in - if u' == u then t else - (changed := true; mkSort (Sorts.sort_of_univ u')) - | Const (c, u) -> - let u' = fi u in - if u' == u then t - else (changed := true; mkConstU (c, u')) - | Ind (i, u) -> - let u' = fi u in - if u' == u then t - else (changed := true; mkIndU (i, u')) - | Construct (c, u) -> - let u' = fi u in - if u' == u then t - else (changed := true; mkConstructU (c, u')) - | _ -> map aux t - in - let c' = aux c in - if !changed then c' else c - -let subst_univs_constr subst c = - if Univ.is_empty_subst subst then c - else - let f = Univ.make_subst subst in - subst_univs_fn_constr f c - -let subst_univs_constr = - if Flags.profile then - let subst_univs_constr_key = CProfile.declare_profile "subst_univs_constr" in - CProfile.profile2 subst_univs_constr_key subst_univs_constr - else subst_univs_constr - let subst_univs_level_constr subst c = if Univ.is_empty_level_subst subst then c else @@ -353,6 +312,3 @@ let subst_instance_constr subst c = let subst_instance_context s ctx = if Univ.Instance.is_empty s then ctx else Context.Rel.map (fun x -> subst_instance_constr s x) ctx - -type id_key = Constant.t tableKey -let eq_id_key x y = Names.eq_table_key Constant.equal x y diff --git a/kernel/vars.mli b/kernel/vars.mli index 964de4e958..a0c7ba4bd2 100644 --- a/kernel/vars.mli +++ b/kernel/vars.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Names @@ -129,12 +131,6 @@ val subst_var : Id.t -> constr -> constr open Univ -val subst_univs_fn_constr : universe_subst_fn -> constr -> constr -val subst_univs_fn_puniverses : universe_level_subst_fn -> - 'a puniverses -> 'a puniverses - -val subst_univs_constr : universe_subst -> constr -> constr - (** Level substitutions for polymorphism. *) val subst_univs_level_constr : universe_level_subst -> constr -> constr @@ -143,6 +139,3 @@ val subst_univs_level_context : Univ.universe_level_subst -> Context.Rel.t -> Co (** Instance substitution for polymorphism. *) val subst_instance_constr : Instance.t -> constr -> constr val subst_instance_context : Instance.t -> Context.Rel.t -> Context.Rel.t - -type id_key = Constant.t tableKey -val eq_id_key : id_key -> id_key -> bool diff --git a/kernel/vconv.ml b/kernel/vconv.ml index 3ef297b1f4..f11803b67c 100644 --- a/kernel/vconv.ml +++ b/kernel/vconv.ml @@ -3,6 +3,7 @@ open Names open Environ open Reduction open Vm +open Vmvalues open Csymtable let val_of_constr env c = @@ -43,7 +44,6 @@ let rec conv_val env pb k v1 v2 cu = and conv_whd env pb k whd1 whd2 cu = (* Pp.(msg_debug (str "conv_whd(" ++ pr_whd whd1 ++ str ", " ++ pr_whd whd2 ++ str ")")) ; *) match whd1, whd2 with - | Vsort s1, Vsort s2 -> sort_cmp_universes env pb s1 s2 cu | Vuniv_level _ , _ | _ , Vuniv_level _ -> (** Both of these are invalid since universes are handled via @@ -80,7 +80,7 @@ and conv_whd env pb k whd1 whd2 cu = (* on the fly eta expansion *) conv_val env CONV (k+1) (apply_whd k whd1) (apply_whd k whd2) cu - | Vsort _, _ | Vprod _, _ | Vfix _, _ | Vcofix _, _ | Vconstr_const _, _ + | Vprod _, _ | Vfix _, _ | Vcofix _, _ | Vconstr_const _, _ | Vconstr_block _, _ | Vatom_stk _, _ -> raise NotConvertible @@ -115,11 +115,12 @@ and conv_atom env pb k a1 stk1 a2 stk2 cu = conv_stack env k stk1 stk2 cu else raise NotConvertible | Aid ik1, Aid ik2 -> - if Vars.eq_id_key ik1 ik2 && compare_stack stk1 stk2 then + if Vmvalues.eq_id_key ik1 ik2 && compare_stack stk1 stk2 then conv_stack env k stk1 stk2 cu else raise NotConvertible - | Atype _ , _ | _, Atype _ -> assert false - | Aind _, _ | Aid _, _ -> raise NotConvertible + | Asort s1, Asort s2 -> + sort_cmp_universes env pb s1 s2 cu + | Asort _ , _ | Aind _, _ | Aid _, _ -> raise NotConvertible and conv_stack env k stk1 stk2 cu = match stk1, stk2 with diff --git a/kernel/vconv.mli b/kernel/vconv.mli index 7f727df475..620f6b5e8a 100644 --- a/kernel/vconv.mli +++ b/kernel/vconv.mli @@ -1,9 +1,11 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) open Constr @@ -19,4 +21,4 @@ val vm_conv : conv_pb -> types kernel_conversion_function val vm_conv_gen : conv_pb -> (types, 'a) generic_conversion_function (** Precompute a VM value from a constr *) -val val_of_constr : env -> constr -> values +val val_of_constr : env -> constr -> Vmvalues.values diff --git a/kernel/vm.ml b/kernel/vm.ml index 51101f88e4..14aeb732f9 100644 --- a/kernel/vm.ml +++ b/kernel/vm.ml @@ -1,52 +1,20 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) -open Names -open Sorts -open Constr open Cbytecodes +open Vmvalues external set_drawinstr : unit -> unit = "coq_set_drawinstr" -(******************************************) -(* Utility Functions about Obj ************) -(******************************************) - -external offset_closure : Obj.t -> int -> Obj.t = "coq_offset_closure" -external offset : Obj.t -> int = "coq_offset" - -(*******************************************) -(* Initalization of the abstract machine ***) -(*******************************************) - -external init_vm : unit -> unit = "init_coq_vm" - -let _ = init_vm () - -(*******************************************) -(* Machine code *** ************************) -(*******************************************) - -type tcode -let tcode_of_obj v = ((Obj.obj v):tcode) -let fun_code v = tcode_of_obj (Obj.field (Obj.repr v) 0) - -external mkAccuCode : int -> tcode = "coq_makeaccu" external mkPopStopCode : int -> tcode = "coq_pushpop" -external offset_tcode : tcode -> int -> tcode = "coq_offset_tcode" -external int_tcode : tcode -> int -> int = "coq_int_tcode" - -external accumulate : unit -> tcode = "accumulate_code" -let accumulate = accumulate () - -external is_accumulate : tcode -> bool = "coq_is_accumulate_code" - let popstop_tbl = ref (Array.init 30 mkPopStopCode) let popstop_code i = @@ -62,107 +30,6 @@ let popstop_code i = let stop = popstop_code 0 -(******************************************************) -(* Abstract data types and utility functions **********) -(******************************************************) - -(* Values of the abstract machine *) -let val_of_obj v = ((Obj.obj v):values) -let crazy_val = (val_of_obj (Obj.repr 0)) - -(* Abstract data *) -type vprod -type vfun -type vfix -type vcofix -type vblock -type arguments - -type vm_env -type vstack = values array - -type vswitch = { - sw_type_code : tcode; - sw_code : tcode; - sw_annot : annot_switch; - sw_stk : vstack; - sw_env : vm_env - } - -(* Representation of values *) -(* + Products : *) -(* - vprod = 0_[ dom | codom] *) -(* dom : values, codom : vfun *) -(* *) -(* + Functions have two representations : *) -(* - unapplied fun : vf = Ct_[ C | fv1 | ... | fvn] *) -(* C:tcode, fvi : values *) -(* Remark : a function and its environment is the same value. *) -(* - partially applied fun : Ct_[Restart:C| vf | arg1 | ... argn] *) -(* *) -(* + Fixpoints : *) -(* - Ct_[C1|Infix_t|C2|...|Infix_t|Cn|fv1|...|fvn] *) -(* One single block to represent all of the fixpoints, each fixpoint *) -(* is the pointer to the field holding the pointer to its code, and *) -(* the infix tag is used to know where the block starts. *) -(* - Partial application follows the scheme of partially applied *) -(* functions. Note: only fixpoints not having been applied to its *) -(* recursive argument are coded this way. When the rec. arg. is *) -(* applied, either it's a constructor and the fix reduces, or it's *) -(* and the fix is coded as an accumulator. *) -(* *) -(* + Cofixpoints : see cbytegen.ml *) -(* *) -(* + vblock's encode (non constant) constructors as in Ocaml, but *) -(* starting from 0 up. tag 0 ( = accu_tag) is reserved for *) -(* accumulators. *) -(* *) -(* + vm_env is the type of the machine environments (i.e. a function or *) -(* a fixpoint) *) -(* *) -(* + Accumulators : At_[accumulate| accu | arg1 | ... | argn ] *) -(* - representation of [accu] : tag_[....] *) -(* -- tag <= 3 : encoding atom type (sorts, free vars, etc.) *) -(* -- 10_[accu|proj name] : a projection blocked by an accu *) -(* -- 11_[accu|fix_app] : a fixpoint blocked by an accu *) -(* -- 12_[accu|vswitch] : a match blocked by an accu *) -(* -- 13_[fcofix] : a cofix function *) -(* -- 14_[fcofix|val] : a cofix function, val represent the value *) -(* of the function applied to arg1 ... argn *) -(* The [arguments] type, which is abstracted as an array, represents : *) -(* tag[ _ | _ |v1|... | vn] *) -(* Generally the first field is a code pointer. *) - -(* Do not edit this type without editing C code, especially "coq_values.h" *) - -type atom = - | Aid of Vars.id_key - | Aind of inductive - | Atype of Univ.Universe.t - -(* Zippers *) - -type zipper = - | Zapp of arguments - | Zfix of vfix*arguments (* Possibly empty *) - | Zswitch of vswitch - | Zproj of Constant.t (* name of the projection *) - -type stack = zipper list - -type to_up = values - -type whd = - | Vsort of Sorts.t - | Vprod of vprod - | Vfun of vfun - | Vfix of vfix * arguments option - | Vcofix of vcofix * to_up * arguments option - | Vconstr_const of int - | Vconstr_block of vblock - | Vatom_stk of atom * stack - | Vuniv_level of Univ.Level.t - (************************************************) (* Abstract machine *****************************) (************************************************) @@ -178,389 +45,71 @@ external push_vstack : vstack -> int -> unit = "coq_push_vstack" external interprete : tcode -> values -> vm_env -> int -> values = "coq_interprete_ml" - - (* Functions over arguments *) -let nargs : arguments -> int = fun args -> (Obj.size (Obj.repr args)) - 2 -let arg args i = - if 0 <= i && i < (nargs args) then - val_of_obj (Obj.field (Obj.repr args) (i+2)) - else invalid_arg - ("Vm.arg size = "^(string_of_int (nargs args))^ - " acces "^(string_of_int i)) (* Apply a value to arguments contained in [vargs] *) let apply_arguments vf vargs = let n = nargs vargs in - if Int.equal n 0 then vf + if Int.equal n 0 then fun_val vf else begin push_ra stop; push_arguments vargs; - interprete (fun_code vf) vf (Obj.magic vf) (n - 1) + interprete (fun_code vf) (fun_val vf) (fun_env vf) (n - 1) end (* Apply value [vf] to an array of argument values [varray] *) let apply_varray vf varray = let n = Array.length varray in - if Int.equal n 0 then vf + if Int.equal n 0 then fun_val vf else begin push_ra stop; (* The fun code of [vf] will make sure we have enough stack, so we put 0 here. *) push_vstack varray 0; - interprete (fun_code vf) vf (Obj.magic vf) (n - 1) + interprete (fun_code vf) (fun_val vf) (fun_env vf) (n - 1) end -(*************************************************) -(* Destructors ***********************************) -(*************************************************) - -let uni_lvl_val (v : values) : Univ.Level.t = - let whd = Obj.magic v in - match whd with - | Vuniv_level lvl -> lvl - | _ -> - let pr = - let open Pp in - match whd with - | Vsort _ -> str "Vsort" - | Vprod _ -> str "Vprod" - | Vfun _ -> str "Vfun" - | Vfix _ -> str "Vfix" - | Vcofix _ -> str "Vcofix" - | Vconstr_const i -> str "Vconstr_const" - | Vconstr_block b -> str "Vconstr_block" - | Vatom_stk (a,stk) -> str "Vatom_stk" - | _ -> assert false - in - CErrors.anomaly - Pp.( strbrk "Parsing virtual machine value expected universe level, got " - ++ pr ++ str ".") - -let rec whd_accu a stk = - let stk = - if Int.equal (Obj.size a) 2 then stk - else Zapp (Obj.obj a) :: stk in - let at = Obj.field a 1 in - match Obj.tag at with - | i when Int.equal i type_atom_tag -> - begin match stk with - | [Zapp args] -> - let u = ref (Obj.obj (Obj.field at 0)) in - for i = 0 to nargs args - 1 do - u := Univ.Universe.sup !u (Univ.Universe.make (uni_lvl_val (arg args i))) - done; - Vsort (Type !u) - | _ -> assert false - end - | i when i <= max_atom_tag -> - Vatom_stk(Obj.magic at, stk) - | i when Int.equal i proj_tag -> - let zproj = Zproj (Obj.obj (Obj.field at 0)) in - whd_accu (Obj.field at 1) (zproj :: stk) - | i when Int.equal i fix_app_tag -> - let fa = Obj.field at 1 in - let zfix = - Zfix (Obj.obj (Obj.field fa 1), Obj.obj fa) in - whd_accu (Obj.field at 0) (zfix :: stk) - | i when Int.equal i switch_tag -> - let zswitch = Zswitch (Obj.obj (Obj.field at 1)) in - whd_accu (Obj.field at 0) (zswitch :: stk) - | i when Int.equal i cofix_tag -> - let vcfx = Obj.obj (Obj.field at 0) in - let to_up = Obj.obj a in - begin match stk with - | [] -> Vcofix(vcfx, to_up, None) - | [Zapp args] -> Vcofix(vcfx, to_up, Some args) - | _ -> assert false - end - | i when Int.equal i cofix_evaluated_tag -> - let vcofix = Obj.obj (Obj.field at 0) in - let res = Obj.obj a in - begin match stk with - | [] -> Vcofix(vcofix, res, None) - | [Zapp args] -> Vcofix(vcofix, res, Some args) - | _ -> assert false - end - | tg -> - CErrors.anomaly - Pp.(strbrk "Failed to parse VM value. Tag = " ++ int tg ++ str ".") - -external kind_of_closure : Obj.t -> int = "coq_kind_of_closure" - -let whd_val : values -> whd = - fun v -> - let o = Obj.repr v in - if Obj.is_int o then Vconstr_const (Obj.obj o) - else - let tag = Obj.tag o in - if tag = accu_tag then - ( - if Int.equal (Obj.size o) 1 then Obj.obj o (* sort *) - else - if is_accumulate (fun_code o) then whd_accu o [] - else Vprod(Obj.obj o)) - else - if tag = Obj.closure_tag || tag = Obj.infix_tag then - (match kind_of_closure o with - | 0 -> Vfun(Obj.obj o) - | 1 -> Vfix(Obj.obj o, None) - | 2 -> Vfix(Obj.obj (Obj.field o 1), Some (Obj.obj o)) - | 3 -> Vatom_stk(Aid(RelKey(int_tcode (fun_code o) 1)), []) - | _ -> CErrors.anomaly ~label:"Vm.whd " (Pp.str "kind_of_closure does not work.")) - else - Vconstr_block(Obj.obj o) - -(**********************************************) -(* Constructors *******************************) -(**********************************************) - -let obj_of_atom : atom -> Obj.t = - fun a -> - let res = Obj.new_block accu_tag 2 in - Obj.set_field res 0 (Obj.repr accumulate); - Obj.set_field res 1 (Obj.repr a); - res - -(* obj_of_str_const : structured_constant -> Obj.t *) -let rec obj_of_str_const str = - match str with - | Const_sorts s -> Obj.repr (Vsort s) - | Const_ind ind -> obj_of_atom (Aind ind) - | Const_proj p -> Obj.repr p - | Const_b0 tag -> Obj.repr tag - | Const_bn(tag, args) -> - let len = Array.length args in - let res = Obj.new_block tag len in - for i = 0 to len - 1 do - Obj.set_field res i (obj_of_str_const args.(i)) - done; - res - | Const_univ_level l -> Obj.repr (Vuniv_level l) - | Const_type u -> obj_of_atom (Atype u) - -let val_of_obj o = ((Obj.obj o) : values) - -let val_of_str_const str = val_of_obj (obj_of_str_const str) - -let val_of_atom a = val_of_obj (obj_of_atom a) - -let atom_of_proj kn v = - let r = Obj.new_block proj_tag 2 in - Obj.set_field r 0 (Obj.repr kn); - Obj.set_field r 1 (Obj.repr v); - ((Obj.obj r) : atom) - -let val_of_proj kn v = - val_of_atom (atom_of_proj kn v) - -module IdKeyHash = -struct - type t = Constant.t tableKey - let equal = Names.eq_table_key Constant.equal - open Hashset.Combine - let hash = function - | ConstKey c -> combinesmall 1 (Constant.hash c) - | VarKey id -> combinesmall 2 (Id.hash id) - | RelKey i -> combinesmall 3 (Int.hash i) -end - -module KeyTable = Hashtbl.Make(IdKeyHash) - -let idkey_tbl = KeyTable.create 31 - -let val_of_idkey key = - try KeyTable.find idkey_tbl key - with Not_found -> - let v = val_of_atom (Aid key) in - KeyTable.add idkey_tbl key v; - v - -let val_of_rel k = val_of_idkey (RelKey k) - -let val_of_named id = val_of_idkey (VarKey id) - -let val_of_constant c = val_of_idkey (ConstKey c) - -external val_of_annot_switch : annot_switch -> values = "%identity" - let mkrel_vstack k arity = let max = k + arity - 1 in Array.init arity (fun i -> val_of_rel (max - i)) - -(*************************************************) -(** Operations manipulating data types ***********) -(*************************************************) - -(* Functions over products *) - -let dom : vprod -> values = fun p -> val_of_obj (Obj.field (Obj.repr p) 0) -let codom : vprod -> vfun = fun p -> (Obj.obj (Obj.field (Obj.repr p) 1)) - -(* Functions over vfun *) - -external closure_arity : vfun -> int = "coq_closure_arity" - -let body_of_vfun k vf = +let reduce_fun k vf = let vargs = mkrel_vstack k 1 in - apply_varray (Obj.magic vf) vargs + apply_varray vf vargs let decompose_vfun2 k vf1 vf2 = let arity = min (closure_arity vf1) (closure_arity vf2) in assert (0 < arity && arity < Sys.max_array_length); let vargs = mkrel_vstack k arity in - let v1 = apply_varray (Obj.magic vf1) vargs in - let v2 = apply_varray (Obj.magic vf2) vargs in + let v1 = apply_varray vf1 vargs in + let v2 = apply_varray vf2 vargs in arity, v1, v2 -(* Functions over fixpoint *) - -let first o = (offset_closure o (offset o)) -let last o = (Obj.field o (Obj.size o - 1)) - -let current_fix vf = - (offset (Obj.repr vf) / 2) - -let unsafe_fb_code fb i = tcode_of_obj (Obj.field (Obj.repr fb) (2 * i)) - -let unsafe_rec_arg fb i = int_tcode (unsafe_fb_code fb i) 1 - -let rec_args vf = - let fb = first (Obj.repr vf) in - let size = Obj.size (last fb) in - Array.init size (unsafe_rec_arg fb) - -exception FALSE - -let check_fix f1 f2 = - let i1, i2 = current_fix f1, current_fix f2 in - (* Checking starting point *) - if i1 = i2 then - let fb1,fb2 = first (Obj.repr f1), first (Obj.repr f2) in - let n = Obj.size (last fb1) in - (* Checking number of definitions *) - if n = Obj.size (last fb2) then - (* Checking recursive arguments *) - try - for i = 0 to n - 1 do - if unsafe_rec_arg fb1 i <> unsafe_rec_arg fb2 i - then raise FALSE - done; - true - with FALSE -> false - else false - else false - (* Functions over vfix *) -external atom_rel : unit -> atom array = "get_coq_atom_tbl" -external realloc_atom_rel : int -> unit = "realloc_coq_atom_tbl" - -let relaccu_tbl = - let atom_rel = atom_rel() in - let len = Array.length atom_rel in - for i = 0 to len - 1 do atom_rel.(i) <- Aid (RelKey i) done; - ref (Array.init len mkAccuCode) - -let relaccu_code i = - let len = Array.length !relaccu_tbl in - if i < len then !relaccu_tbl.(i) - else - begin - realloc_atom_rel i; - let atom_rel = atom_rel () in - let nl = Array.length atom_rel in - for j = len to nl - 1 do atom_rel.(j) <- Aid(RelKey j) done; - relaccu_tbl := - Array.init nl - (fun j -> if j < len then !relaccu_tbl.(j) else mkAccuCode j); - !relaccu_tbl.(i) - end let reduce_fix k vf = - let fb = first (Obj.repr vf) in + let fb = first_fix vf in (* computing types *) - let fc_typ = ((Obj.obj (last fb)) : tcode array) in + let fc_typ = fix_types fb in let ndef = Array.length fc_typ in - let et = offset_closure fb (2*(ndef - 1)) in + let et = offset_closure_fix fb (2*(ndef - 1)) in let ftyp = Array.map - (fun c -> interprete c crazy_val (Obj.magic et) 0) fc_typ in + (fun c -> interprete c crazy_val et 0) fc_typ in (* Construction of the environment of fix bodies *) - let e = Obj.dup fb in - for i = 0 to ndef - 1 do - Obj.set_field e (2 * i) (Obj.repr (relaccu_code (k + i))) - done; - let fix_body i = - let jump_grabrec c = offset_tcode c 2 in - let c = jump_grabrec (unsafe_fb_code fb i) in - let res = Obj.new_block Obj.closure_tag 2 in - Obj.set_field res 0 (Obj.repr c); - Obj.set_field res 1 (offset_closure e (2*i)); - ((Obj.obj res) : vfun) in - (Array.init ndef fix_body, ftyp) - -(* Functions over vcofix *) - -let get_fcofix vcf i = - match whd_val (Obj.obj (Obj.field (Obj.repr vcf) (i+1))) with - | Vcofix(vcfi, _, _) -> vcfi - | _ -> assert false - -let current_cofix vcf = - let ndef = Obj.size (last (Obj.repr vcf)) in - let rec find_cofix pos = - if pos < ndef then - if get_fcofix vcf pos == vcf then pos - else find_cofix (pos+1) - else raise Not_found in - try find_cofix 0 - with Not_found -> assert false - -let check_cofix vcf1 vcf2 = - (current_cofix vcf1 = current_cofix vcf2) && - (Obj.size (last (Obj.repr vcf1)) = Obj.size (last (Obj.repr vcf2))) + (mk_fix_body k ndef fb, ftyp) let reduce_cofix k vcf = - let fc_typ = ((Obj.obj (last (Obj.repr vcf))) : tcode array) in + let fc_typ = cofix_types vcf in let ndef = Array.length fc_typ in let ftyp = (* Evaluate types *) - Array.map (fun c -> interprete c crazy_val (Obj.magic vcf) 0) fc_typ in + Array.map (fun c -> interprete c crazy_val (cofix_env vcf) 0) fc_typ in (* Construction of the environment of cofix bodies *) - let e = Obj.dup (Obj.repr vcf) in - for i = 0 to ndef - 1 do - Obj.set_field e (i+1) (Obj.repr (val_of_rel (k+i))) - done; - - let cofix_body i = - let vcfi = get_fcofix vcf i in - let c = Obj.field (Obj.repr vcfi) 0 in - Obj.set_field e 0 c; - let atom = Obj.new_block cofix_tag 1 in - let self = Obj.new_block accu_tag 2 in - Obj.set_field self 0 (Obj.repr accumulate); - Obj.set_field self 1 (Obj.repr atom); - apply_varray (Obj.obj e) [|Obj.obj self|] in - (Array.init ndef cofix_body, ftyp) - - -(* Functions over vblock *) - -let btag : vblock -> int = fun b -> Obj.tag (Obj.repr b) -let bsize : vblock -> int = fun b -> Obj.size (Obj.repr b) -let bfield b i = - if 0 <= i && i < (bsize b) then val_of_obj (Obj.field (Obj.repr b) i) - else invalid_arg "Vm.bfield" - - -(* Functions over vswitch *) - -let check_switch sw1 sw2 = sw1.sw_annot.rtbl = sw2.sw_annot.rtbl - -let case_info sw = sw.sw_annot.ci + (mk_cofix_body apply_varray k ndef vcf, ftyp) let type_of_switch sw = (* The fun code of types will make sure we have enough stack, so we put 0 @@ -568,20 +117,6 @@ let type_of_switch sw = push_vstack sw.sw_stk 0; interprete sw.sw_type_code crazy_val sw.sw_env 0 -let branch_arg k (tag,arity) = - if Int.equal arity 0 then ((Obj.magic tag):values) - else - let b, ofs = - if tag < last_variant_tag then Obj.new_block tag arity, 0 - else - let b = Obj.new_block last_variant_tag (arity+1) in - Obj.set_field b 0 (Obj.repr (tag-last_variant_tag)); - b,1 in - for i = ofs to ofs + arity - 1 do - Obj.set_field b i (Obj.repr (val_of_rel (k+i))) - done; - val_of_obj b - let apply_switch sw arg = let tc = sw.sw_annot.tailcall in if tc then @@ -603,8 +138,8 @@ let branch_of_switch k sw = (* t = a stk --> t v *) let rec apply_stack a stk v = match stk with - | [] -> apply_varray a [|v|] - | Zapp args :: stk -> apply_stack (apply_arguments a args) stk v + | [] -> apply_varray (fun_of_val a) [|v|] + | Zapp args :: stk -> apply_stack (apply_arguments (fun_of_val a) args) stk v | Zproj kn :: stk -> apply_stack (val_of_proj kn a) stk v | Zfix(f,args) :: stk -> let a,stk = @@ -615,7 +150,7 @@ let rec apply_stack a stk v = push_val a; push_arguments args; let a = - interprete (fun_code f) (Obj.magic f) (Obj.magic f) + interprete (fix_code f) (fix_val f) (fix_env f) (nargs args+ nargs args') in a, stk | _ -> @@ -623,7 +158,7 @@ let rec apply_stack a stk v = push_val a; push_arguments args; let a = - interprete (fun_code f) (Obj.magic f) (Obj.magic f) + interprete (fix_code f) (fix_val f) (fix_env f) (nargs args) in a, stk in apply_stack a stk v @@ -633,51 +168,22 @@ let rec apply_stack a stk v = let apply_whd k whd = let v = val_of_rel k in match whd with - | Vsort _ | Vprod _ | Vconstr_const _ | Vconstr_block _ -> assert false - | Vfun f -> body_of_vfun k f + | Vprod _ | Vconstr_const _ | Vconstr_block _ -> assert false + | Vfun f -> reduce_fun k f | Vfix(f, None) -> push_ra stop; push_val v; - interprete (fun_code f) (Obj.magic f) (Obj.magic f) 0 + interprete (fix_code f) (fix_val f) (fix_env f) 0 | Vfix(f, Some args) -> push_ra stop; push_val v; push_arguments args; - interprete (fun_code f) (Obj.magic f) (Obj.magic f) (nargs args) + interprete (fix_code f) (fix_val f) (fix_env f) (nargs args) | Vcofix(_,to_up,_) -> push_ra stop; push_val v; - interprete (fun_code to_up) (Obj.magic to_up) (Obj.magic to_up) 0 + interprete (cofix_upd_code to_up) (cofix_upd_val to_up) (cofix_upd_env to_up) 0 | Vatom_stk(a,stk) -> apply_stack (val_of_atom a) stk v | Vuniv_level lvl -> assert false -let rec pr_atom a = - Pp.(match a with - | Aid c -> str "Aid(" ++ (match c with - | ConstKey c -> Constant.print c - | RelKey i -> str "#" ++ int i - | _ -> str "...") ++ str ")" - | Aind (mi,i) -> str "Aind(" ++ MutInd.print mi ++ str "#" ++ int i ++ str ")" - | Atype _ -> str "Atype(") -and pr_whd w = - Pp.(match w with - | Vsort _ -> str "Vsort" - | Vprod _ -> str "Vprod" - | Vfun _ -> str "Vfun" - | Vfix _ -> str "Vfix" - | Vcofix _ -> str "Vcofix" - | Vconstr_const i -> str "Vconstr_const(" ++ int i ++ str ")" - | Vconstr_block b -> str "Vconstr_block" - | Vatom_stk (a,stk) -> str "Vatom_stk(" ++ pr_atom a ++ str ", " ++ pr_stack stk ++ str ")" - | Vuniv_level _ -> assert false) -and pr_stack stk = - Pp.(match stk with - | [] -> str "[]" - | s :: stk -> pr_zipper s ++ str " :: " ++ pr_stack stk) -and pr_zipper z = - Pp.(match z with - | Zapp args -> str "Zapp(len = " ++ int (nargs args) ++ str ")" - | Zfix (f,args) -> str "Zfix(..., len=" ++ int (nargs args) ++ str ")" - | Zswitch s -> str "Zswitch(...)" - | Zproj c -> str "Zproj(" ++ Constant.print c ++ str ")") diff --git a/kernel/vm.mli b/kernel/vm.mli index bc38452d4f..50ebc90626 100644 --- a/kernel/vm.mli +++ b/kernel/vm.mli @@ -1,123 +1,35 @@ (************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2017 *) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) (* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) (************************************************************************) -open Names -open Constr -open Cbytecodes +open Vmvalues (** Debug printing *) val set_drawinstr : unit -> unit -(** Machine code *) - -type tcode - -(** Values *) - -type vprod -type vfun -type vfix -type vcofix -type vblock -type vswitch -type arguments - -type atom = - | Aid of Vars.id_key - | Aind of inductive - | Atype of Univ.Universe.t - -(** Zippers *) - -type zipper = - | Zapp of arguments - | Zfix of vfix * arguments (** might be empty *) - | Zswitch of vswitch - | Zproj of Constant.t (* name of the projection *) - -type stack = zipper list - -type to_up - -type whd = - | Vsort of Sorts.t - | Vprod of vprod - | Vfun of vfun - | Vfix of vfix * arguments option - | Vcofix of vcofix * to_up * arguments option - | Vconstr_const of int - | Vconstr_block of vblock - | Vatom_stk of atom * stack - | Vuniv_level of Univ.Level.t - -(** For debugging purposes only *) - -val pr_atom : atom -> Pp.t -val pr_whd : whd -> Pp.t -val pr_stack : stack -> Pp.t - -(** Constructors *) - -val val_of_str_const : structured_constant -> values -val val_of_rel : int -> values -val val_of_named : Id.t -> values -val val_of_constant : Constant.t -> values - -external val_of_annot_switch : annot_switch -> values = "%identity" - -(** Destructors *) - -val whd_val : values -> whd -val uni_lvl_val : values -> Univ.Level.t - -(** Arguments *) - -val nargs : arguments -> int -val arg : arguments -> int -> values - -(** Product *) - -val dom : vprod -> values -val codom : vprod -> vfun - -(** Function *) - -val body_of_vfun : int -> vfun -> values -val decompose_vfun2 : int -> vfun -> vfun -> int * values * values - -(** Fix *) - -val current_fix : vfix -> int -val check_fix : vfix -> vfix -> bool -val rec_args : vfix -> int array val reduce_fix : int -> vfix -> vfun array * values array (** bodies , types *) -(** CoFix *) - -val current_cofix : vcofix -> int -val check_cofix : vcofix -> vcofix -> bool val reduce_cofix : int -> vcofix -> values array * values array (** bodies , types *) -(** Block *) +val type_of_switch : vswitch -> values -val btag : vblock -> int -val bsize : vblock -> int -val bfield : vblock -> int -> values +val branch_of_switch : int -> vswitch -> (int * values) array -(** Switch *) +val reduce_fun : int -> vfun -> values -val check_switch : vswitch -> vswitch -> bool -val case_info : vswitch -> case_info -val type_of_switch : vswitch -> values -val branch_of_switch : int -> vswitch -> (int * values) array +(** [decompose_vfun2 k f1 f2] takes two functions [f1] and [f2] at current + DeBruijn level [k], with [n] lambdas in common, returns [n] and the reduced + bodies under those lambdas. *) +val decompose_vfun2 : int -> vfun -> vfun -> int * values * values (** Apply a value *) diff --git a/kernel/vmvalues.ml b/kernel/vmvalues.ml new file mode 100644 index 0000000000..0e0cb4e584 --- /dev/null +++ b/kernel/vmvalues.ml @@ -0,0 +1,542 @@ +(************************************************************************) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) +(************************************************************************) +open Names +open Sorts +open Cbytecodes +open Univ + +(*******************************************) +(* Initalization of the abstract machine ***) +(* Necessary for [relaccu_tbl] *) +(*******************************************) + +external init_vm : unit -> unit = "init_coq_vm" + +let _ = init_vm () + +(******************************************************) +(* Abstract data types and utility functions **********) +(******************************************************) + +(* Values of the abstract machine *) +type values +let val_of_obj v = ((Obj.obj v):values) +let crazy_val = (val_of_obj (Obj.repr 0)) + +(* Abstract data *) +type vprod +type vfun +type vfix +type vcofix +type vblock +type arguments + +let fun_val v = (Obj.magic v : values) +let fix_val v = (Obj.magic v : values) +let cofix_upd_val v = (Obj.magic v : values) + +type vm_env +let fun_env v = (Obj.magic v : vm_env) +let fix_env v = (Obj.magic v : vm_env) +let cofix_env v = (Obj.magic v : vm_env) +let cofix_upd_env v = (Obj.magic v : vm_env) +type vstack = values array + +let fun_of_val v = (Obj.magic v : vfun) + +(*******************************************) +(* Machine code *** ************************) +(*******************************************) + +type tcode + +external mkAccuCode : int -> tcode = "coq_makeaccu" +external offset_tcode : tcode -> int -> tcode = "coq_offset_tcode" + +let tcode_of_obj v = ((Obj.obj v):tcode) +let fun_code v = tcode_of_obj (Obj.field (Obj.repr v) 0) +let fix_code v = fun_code v +let cofix_upd_code v = fun_code v + + +type vswitch = { + sw_type_code : tcode; + sw_code : tcode; + sw_annot : annot_switch; + sw_stk : vstack; + sw_env : vm_env + } + +(* Representation of values *) +(* + Products : *) +(* - vprod = 0_[ dom | codom] *) +(* dom : values, codom : vfun *) +(* *) +(* + Functions have two representations : *) +(* - unapplied fun : vf = Ct_[ C | fv1 | ... | fvn] *) +(* C:tcode, fvi : values *) +(* Remark : a function and its environment is the same value. *) +(* - partially applied fun : Ct_[Restart:C| vf | arg1 | ... argn] *) +(* *) +(* + Fixpoints : *) +(* - Ct_[C1|Infix_t|C2|...|Infix_t|Cn|fv1|...|fvn] *) +(* One single block to represent all of the fixpoints, each fixpoint *) +(* is the pointer to the field holding the pointer to its code, and *) +(* the infix tag is used to know where the block starts. *) +(* - Partial application follows the scheme of partially applied *) +(* functions. Note: only fixpoints not having been applied to its *) +(* recursive argument are coded this way. When the rec. arg. is *) +(* applied, either it's a constructor and the fix reduces, or it's *) +(* and the fix is coded as an accumulator. *) +(* *) +(* + Cofixpoints : see cbytegen.ml *) +(* *) +(* + vblock's encode (non constant) constructors as in Ocaml, but *) +(* starting from 0 up. tag 0 ( = accu_tag) is reserved for *) +(* accumulators. *) +(* *) +(* + vm_env is the type of the machine environments (i.e. a function or *) +(* a fixpoint) *) +(* *) +(* + Accumulators : At_[accumulate| accu | arg1 | ... | argn ] *) +(* - representation of [accu] : tag_[....] *) +(* -- tag <= 3 : encoding atom type (sorts, free vars, etc.) *) +(* -- 10_[accu|proj name] : a projection blocked by an accu *) +(* -- 11_[accu|fix_app] : a fixpoint blocked by an accu *) +(* -- 12_[accu|vswitch] : a match blocked by an accu *) +(* -- 13_[fcofix] : a cofix function *) +(* -- 14_[fcofix|val] : a cofix function, val represent the value *) +(* of the function applied to arg1 ... argn *) +(* The [arguments] type, which is abstracted as an array, represents : *) +(* tag[ _ | _ |v1|... | vn] *) +(* Generally the first field is a code pointer. *) + +(* Do not edit this type without editing C code, especially "coq_values.h" *) + +type id_key = +| ConstKey of Constant.t +| VarKey of Id.t +| RelKey of Int.t +| EvarKey of Evar.t + +let eq_id_key k1 k2 = match k1, k2 with +| ConstKey c1, ConstKey c2 -> Constant.equal c1 c2 +| VarKey id1, VarKey id2 -> Id.equal id1 id2 +| RelKey n1, RelKey n2 -> Int.equal n1 n2 +| EvarKey evk1, EvarKey evk2 -> Evar.equal evk1 evk2 +| _ -> false + +type atom = + | Aid of id_key + | Aind of inductive + | Asort of Sorts.t + +(* Zippers *) + +type zipper = + | Zapp of arguments + | Zfix of vfix*arguments (* Possibly empty *) + | Zswitch of vswitch + | Zproj of Constant.t (* name of the projection *) + +type stack = zipper list + +type to_update = values + +type whd = + | Vprod of vprod + | Vfun of vfun + | Vfix of vfix * arguments option + | Vcofix of vcofix * to_update * arguments option + | Vconstr_const of int + | Vconstr_block of vblock + | Vatom_stk of atom * stack + | Vuniv_level of Univ.Level.t + +(* Functions over arguments *) +let nargs : arguments -> int = fun args -> (Obj.size (Obj.repr args)) - 2 +let arg args i = + if 0 <= i && i < (nargs args) then + val_of_obj (Obj.field (Obj.repr args) (i+2)) + else invalid_arg + ("Vm.arg size = "^(string_of_int (nargs args))^ + " acces "^(string_of_int i)) + +(*************************************************) +(* Destructors ***********************************) +(*************************************************) + +let uni_lvl_val (v : values) : Univ.Level.t = + let whd = Obj.magic v in + match whd with + | Vuniv_level lvl -> lvl + | _ -> + let pr = + let open Pp in + match whd with + | Vprod _ -> str "Vprod" + | Vfun _ -> str "Vfun" + | Vfix _ -> str "Vfix" + | Vcofix _ -> str "Vcofix" + | Vconstr_const i -> str "Vconstr_const" + | Vconstr_block b -> str "Vconstr_block" + | Vatom_stk (a,stk) -> str "Vatom_stk" + | _ -> assert false + in + CErrors.anomaly + Pp.( strbrk "Parsing virtual machine value expected universe level, got " + ++ pr ++ str ".") + +let rec whd_accu a stk = + let stk = + if Int.equal (Obj.size a) 2 then stk + else Zapp (Obj.obj a) :: stk in + let at = Obj.field a 1 in + match Obj.tag at with + | i when Int.equal i type_atom_tag -> + begin match stk with + | [] -> Vatom_stk(Obj.magic at, stk) + | [Zapp args] -> + let args = Array.init (nargs args) (arg args) in + let s = Obj.obj (Obj.field at 0) in + begin match s with + | Type u -> + let inst = Instance.of_array (Array.map uni_lvl_val args) in + let u = Univ.subst_instance_universe inst u in + Vatom_stk (Asort (Type u), []) + | _ -> assert false + end + | _ -> assert false + end + | i when i <= max_atom_tag -> + Vatom_stk(Obj.magic at, stk) + | i when Int.equal i proj_tag -> + let zproj = Zproj (Obj.obj (Obj.field at 0)) in + whd_accu (Obj.field at 1) (zproj :: stk) + | i when Int.equal i fix_app_tag -> + let fa = Obj.field at 1 in + let zfix = + Zfix (Obj.obj (Obj.field fa 1), Obj.obj fa) in + whd_accu (Obj.field at 0) (zfix :: stk) + | i when Int.equal i switch_tag -> + let zswitch = Zswitch (Obj.obj (Obj.field at 1)) in + whd_accu (Obj.field at 0) (zswitch :: stk) + | i when Int.equal i cofix_tag -> + let vcfx = Obj.obj (Obj.field at 0) in + let to_up = Obj.obj a in + begin match stk with + | [] -> Vcofix(vcfx, to_up, None) + | [Zapp args] -> Vcofix(vcfx, to_up, Some args) + | _ -> assert false + end + | i when Int.equal i cofix_evaluated_tag -> + let vcofix = Obj.obj (Obj.field at 0) in + let res = Obj.obj a in + begin match stk with + | [] -> Vcofix(vcofix, res, None) + | [Zapp args] -> Vcofix(vcofix, res, Some args) + | _ -> assert false + end + | tg -> + CErrors.anomaly + Pp.(strbrk "Failed to parse VM value. Tag = " ++ int tg ++ str ".") + +external kind_of_closure : Obj.t -> int = "coq_kind_of_closure" +external is_accumulate : tcode -> bool = "coq_is_accumulate_code" +external int_tcode : tcode -> int -> int = "coq_int_tcode" +external accumulate : unit -> tcode = "accumulate_code" +let accumulate = accumulate () + +let whd_val : values -> whd = + fun v -> + let o = Obj.repr v in + if Obj.is_int o then Vconstr_const (Obj.obj o) + else + let tag = Obj.tag o in + if tag = accu_tag then + if is_accumulate (fun_code o) then whd_accu o [] + else Vprod(Obj.obj o) + else + if tag = Obj.closure_tag || tag = Obj.infix_tag then + (match kind_of_closure o with + | 0 -> Vfun(Obj.obj o) + | 1 -> Vfix(Obj.obj o, None) + | 2 -> Vfix(Obj.obj (Obj.field o 1), Some (Obj.obj o)) + | 3 -> Vatom_stk(Aid(RelKey(int_tcode (fun_code o) 1)), []) + | _ -> CErrors.anomaly ~label:"Vm.whd " (Pp.str "kind_of_closure does not work.")) + else + Vconstr_block(Obj.obj o) + +(**********************************************) +(* Constructors *******************************) +(**********************************************) + +let obj_of_atom : atom -> Obj.t = + fun a -> + let res = Obj.new_block accu_tag 2 in + Obj.set_field res 0 (Obj.repr accumulate); + Obj.set_field res 1 (Obj.repr a); + res + +(* obj_of_str_const : structured_constant -> Obj.t *) +let rec obj_of_str_const str = + match str with + | Const_sort s -> obj_of_atom (Asort s) + | Const_ind ind -> obj_of_atom (Aind ind) + | Const_proj p -> Obj.repr p + | Const_b0 tag -> Obj.repr tag + | Const_bn(tag, args) -> + let len = Array.length args in + let res = Obj.new_block tag len in + for i = 0 to len - 1 do + Obj.set_field res i (obj_of_str_const args.(i)) + done; + res + | Const_univ_level l -> Obj.repr (Vuniv_level l) + +let val_of_obj o = ((Obj.obj o) : values) + +let val_of_str_const str = val_of_obj (obj_of_str_const str) + +let val_of_atom a = val_of_obj (obj_of_atom a) + +let atom_of_proj kn v = + let r = Obj.new_block proj_tag 2 in + Obj.set_field r 0 (Obj.repr kn); + Obj.set_field r 1 (Obj.repr v); + ((Obj.obj r) : atom) + +let val_of_proj kn v = + val_of_atom (atom_of_proj kn v) + +module IdKeyHash = +struct + type t = id_key + let equal = eq_id_key + open Hashset.Combine + let hash = function + | ConstKey c -> combinesmall 1 (Constant.hash c) + | VarKey id -> combinesmall 2 (Id.hash id) + | RelKey i -> combinesmall 3 (Int.hash i) + | EvarKey evk -> combinesmall 4 (Evar.hash evk) +end + +module KeyTable = Hashtbl.Make(IdKeyHash) + +let idkey_tbl = KeyTable.create 31 + +let val_of_idkey key = + try KeyTable.find idkey_tbl key + with Not_found -> + let v = val_of_atom (Aid key) in + KeyTable.add idkey_tbl key v; + v + +let val_of_rel k = val_of_idkey (RelKey k) + +let val_of_named id = val_of_idkey (VarKey id) + +let val_of_constant c = val_of_idkey (ConstKey c) + +let val_of_evar evk = val_of_idkey (EvarKey evk) + +external val_of_annot_switch : annot_switch -> values = "%identity" + +(*************************************************) +(** Operations manipulating data types ***********) +(*************************************************) + +(* Functions over products *) + +let dom : vprod -> values = fun p -> val_of_obj (Obj.field (Obj.repr p) 0) +let codom : vprod -> vfun = fun p -> (Obj.obj (Obj.field (Obj.repr p) 1)) + +(* Functions over vfun *) + +external closure_arity : vfun -> int = "coq_closure_arity" + +(* Functions over fixpoint *) + +external offset : Obj.t -> int = "coq_offset" +external offset_closure : Obj.t -> int -> Obj.t = "coq_offset_closure" +external offset_closure_fix : vfix -> int -> vm_env = "coq_offset_closure" + +let first o = (offset_closure o (offset o)) +let first_fix (v:vfix) = (Obj.magic (first (Obj.repr v)) : vfix) + +let last o = (Obj.field o (Obj.size o - 1)) +let fix_types (v:vfix) = (Obj.magic (last (Obj.repr v)) : tcode array) +let cofix_types (v:vcofix) = (Obj.magic (last (Obj.repr v)) : tcode array) + +let current_fix vf = - (offset (Obj.repr vf) / 2) + +let unsafe_fb_code fb i = tcode_of_obj (Obj.field (Obj.repr fb) (2 * i)) + +let unsafe_rec_arg fb i = int_tcode (unsafe_fb_code fb i) 1 + +let rec_args vf = + let fb = first (Obj.repr vf) in + let size = Obj.size (last fb) in + Array.init size (unsafe_rec_arg fb) + +exception FALSE + +let check_fix f1 f2 = + let i1, i2 = current_fix f1, current_fix f2 in + (* Checking starting point *) + if i1 = i2 then + let fb1,fb2 = first (Obj.repr f1), first (Obj.repr f2) in + let n = Obj.size (last fb1) in + (* Checking number of definitions *) + if n = Obj.size (last fb2) then + (* Checking recursive arguments *) + try + for i = 0 to n - 1 do + if unsafe_rec_arg fb1 i <> unsafe_rec_arg fb2 i + then raise FALSE + done; + true + with FALSE -> false + else false + else false + +external atom_rel : unit -> atom array = "get_coq_atom_tbl" +external realloc_atom_rel : int -> unit = "realloc_coq_atom_tbl" + +let relaccu_tbl = + let atom_rel = atom_rel() in + let len = Array.length atom_rel in + for i = 0 to len - 1 do atom_rel.(i) <- Aid (RelKey i) done; + ref (Array.init len mkAccuCode) + +let relaccu_code i = + let len = Array.length !relaccu_tbl in + if i < len then !relaccu_tbl.(i) + else + begin + realloc_atom_rel i; + let atom_rel = atom_rel () in + let nl = Array.length atom_rel in + for j = len to nl - 1 do atom_rel.(j) <- Aid(RelKey j) done; + relaccu_tbl := + Array.init nl + (fun j -> if j < len then !relaccu_tbl.(j) else mkAccuCode j); + !relaccu_tbl.(i) + end + +let mk_fix_body k ndef fb = + let e = Obj.dup (Obj.repr fb) in + for i = 0 to ndef - 1 do + Obj.set_field e (2 * i) (Obj.repr (relaccu_code (k + i))) + done; + let fix_body i = + let jump_grabrec c = offset_tcode c 2 in + let c = jump_grabrec (unsafe_fb_code fb i) in + let res = Obj.new_block Obj.closure_tag 2 in + Obj.set_field res 0 (Obj.repr c); + Obj.set_field res 1 (offset_closure e (2*i)); + ((Obj.obj res) : vfun) in + Array.init ndef fix_body + +(* Functions over vcofix *) + +let get_fcofix vcf i = + match whd_val (Obj.obj (Obj.field (Obj.repr vcf) (i+1))) with + | Vcofix(vcfi, _, _) -> vcfi + | _ -> assert false + +let current_cofix vcf = + let ndef = Obj.size (last (Obj.repr vcf)) in + let rec find_cofix pos = + if pos < ndef then + if get_fcofix vcf pos == vcf then pos + else find_cofix (pos+1) + else raise Not_found in + try find_cofix 0 + with Not_found -> assert false + +let check_cofix vcf1 vcf2 = + (current_cofix vcf1 = current_cofix vcf2) && + (Obj.size (last (Obj.repr vcf1)) = Obj.size (last (Obj.repr vcf2))) + +let mk_cofix_body apply_varray k ndef vcf = + let e = Obj.dup (Obj.repr vcf) in + for i = 0 to ndef - 1 do + Obj.set_field e (i+1) (Obj.repr (val_of_rel (k+i))) + done; + + let cofix_body i = + let vcfi = get_fcofix vcf i in + let c = Obj.field (Obj.repr vcfi) 0 in + Obj.set_field e 0 c; + let atom = Obj.new_block cofix_tag 1 in + let self = Obj.new_block accu_tag 2 in + Obj.set_field self 0 (Obj.repr accumulate); + Obj.set_field self 1 (Obj.repr atom); + apply_varray (Obj.obj e) [|Obj.obj self|] in + Array.init ndef cofix_body + +(* Functions over vblock *) + +let btag : vblock -> int = fun b -> Obj.tag (Obj.repr b) +let bsize : vblock -> int = fun b -> Obj.size (Obj.repr b) +let bfield b i = + if 0 <= i && i < (bsize b) then val_of_obj (Obj.field (Obj.repr b) i) + else invalid_arg "Vm.bfield" + + +(* Functions over vswitch *) + +let check_switch sw1 sw2 = sw1.sw_annot.rtbl = sw2.sw_annot.rtbl + +let branch_arg k (tag,arity) = + if Int.equal arity 0 then ((Obj.magic tag):values) + else + let b, ofs = + if tag < last_variant_tag then Obj.new_block tag arity, 0 + else + let b = Obj.new_block last_variant_tag (arity+1) in + Obj.set_field b 0 (Obj.repr (tag-last_variant_tag)); + b,1 in + for i = ofs to ofs + arity - 1 do + Obj.set_field b i (Obj.repr (val_of_rel (k+i))) + done; + val_of_obj b + +(* Printing *) + +let rec pr_atom a = + Pp.(match a with + | Aid c -> str "Aid(" ++ (match c with + | ConstKey c -> Constant.print c + | RelKey i -> str "#" ++ int i + | _ -> str "...") ++ str ")" + | Aind (mi,i) -> str "Aind(" ++ MutInd.print mi ++ str "#" ++ int i ++ str ")" + | Asort _ -> str "Asort(") +and pr_whd w = + Pp.(match w with + | Vprod _ -> str "Vprod" + | Vfun _ -> str "Vfun" + | Vfix _ -> str "Vfix" + | Vcofix _ -> str "Vcofix" + | Vconstr_const i -> str "Vconstr_const(" ++ int i ++ str ")" + | Vconstr_block b -> str "Vconstr_block" + | Vatom_stk (a,stk) -> str "Vatom_stk(" ++ pr_atom a ++ str ", " ++ pr_stack stk ++ str ")" + | Vuniv_level _ -> assert false) +and pr_stack stk = + Pp.(match stk with + | [] -> str "[]" + | s :: stk -> pr_zipper s ++ str " :: " ++ pr_stack stk) +and pr_zipper z = + Pp.(match z with + | Zapp args -> str "Zapp(len = " ++ int (nargs args) ++ str ")" + | Zfix (f,args) -> str "Zfix(..., len=" ++ int (nargs args) ++ str ")" + | Zswitch s -> str "Zswitch(...)" + | Zproj c -> str "Zproj(" ++ Constant.print c ++ str ")") diff --git a/kernel/vmvalues.mli b/kernel/vmvalues.mli new file mode 100644 index 0000000000..c6e342a965 --- /dev/null +++ b/kernel/vmvalues.mli @@ -0,0 +1,154 @@ +(************************************************************************) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) +(************************************************************************) + +open Names +open Cbytecodes + +(** Values *) + +type values +type vm_env +type vprod +type vfun +type vfix +type vcofix +type vblock +type arguments +type vstack = values array +type to_update + +val fun_val : vfun -> values +val fix_val : vfix -> values +val cofix_upd_val : to_update -> values + +val fun_env : vfun -> vm_env +val fix_env : vfix -> vm_env +val cofix_env : vcofix -> vm_env +val cofix_upd_env : to_update -> vm_env + +(** Cast a value known to be a function, unsafe in general *) +val fun_of_val : values -> vfun + +val crazy_val : values + +(** Machine code *) + +type tcode + +type vswitch = { + sw_type_code : tcode; + sw_code : tcode; + sw_annot : annot_switch; + sw_stk : vstack; + sw_env : vm_env + } + +external mkAccuCode : int -> tcode = "coq_makeaccu" + +val fun_code : vfun -> tcode +val fix_code : vfix -> tcode +val cofix_upd_code : to_update -> tcode + +type id_key = +| ConstKey of Constant.t +| VarKey of Id.t +| RelKey of Int.t +| EvarKey of Evar.t + +val eq_id_key : id_key -> id_key -> bool + +type atom = + | Aid of id_key + | Aind of inductive + | Asort of Sorts.t + +(** Zippers *) + +type zipper = + | Zapp of arguments + | Zfix of vfix * arguments (** might be empty *) + | Zswitch of vswitch + | Zproj of Constant.t (* name of the projection *) + +type stack = zipper list + +type whd = + | Vprod of vprod + | Vfun of vfun + | Vfix of vfix * arguments option + | Vcofix of vcofix * to_update * arguments option + | Vconstr_const of int + | Vconstr_block of vblock + | Vatom_stk of atom * stack + | Vuniv_level of Univ.Level.t + +(** For debugging purposes only *) + +val pr_atom : atom -> Pp.t +val pr_whd : whd -> Pp.t +val pr_stack : stack -> Pp.t + +(** Constructors *) + +val val_of_str_const : structured_constant -> values +val val_of_rel : int -> values +val val_of_named : Id.t -> values +val val_of_constant : Constant.t -> values +val val_of_evar : Evar.t -> values +val val_of_proj : Constant.t -> values -> values +val val_of_atom : atom -> values + +external val_of_annot_switch : annot_switch -> values = "%identity" + +(** Destructors *) + +val whd_val : values -> whd +val uni_lvl_val : values -> Univ.Level.t + +(** Arguments *) + +val nargs : arguments -> int +val arg : arguments -> int -> values + +(** Product *) + +val dom : vprod -> values +val codom : vprod -> vfun + +(** Fun *) +external closure_arity : vfun -> int = "coq_closure_arity" + +(** Fix *) + +val current_fix : vfix -> int +val check_fix : vfix -> vfix -> bool +val rec_args : vfix -> int array +val first_fix : vfix -> vfix +val fix_types : vfix -> tcode array +val cofix_types : vcofix -> tcode array +external offset_closure_fix : vfix -> int -> vm_env = "coq_offset_closure" +val mk_fix_body : int -> int -> vfix -> vfun array + +(** CoFix *) + +val current_cofix : vcofix -> int +val check_cofix : vcofix -> vcofix -> bool +val mk_cofix_body : (vfun -> vstack -> values) -> int -> int -> vcofix -> values array + +(** Block *) + +val btag : vblock -> int +val bsize : vblock -> int +val bfield : vblock -> int -> values + +(** Switch *) + +val check_switch : vswitch -> vswitch -> bool +val branch_arg : int -> Cbytecodes.tag * int -> values |