From 2280477a96e19ba5060de2d48dcc8fd7c8079d22 Mon Sep 17 00:00:00 2001 From: Enrico Tassi Date: Fri, 13 Nov 2015 11:31:34 +0100 Subject: Imported Upstream version 8.5~beta3+dfsg --- kernel/vconv.ml | 191 +++++++++++++++++++++----------------------------------- 1 file changed, 71 insertions(+), 120 deletions(-) (limited to 'kernel/vconv.ml') diff --git a/kernel/vconv.ml b/kernel/vconv.ml index 1c31cc04..4610dbcb 100644 --- a/kernel/vconv.ml +++ b/kernel/vconv.ml @@ -18,8 +18,8 @@ let compare_zipper z1 z2 = match z1, z2 with | Zapp args1, Zapp args2 -> Int.equal (nargs args1) (nargs args2) | Zfix(f1,args1), Zfix(f2,args2) -> Int.equal (nargs args1) (nargs args2) - | Zswitch _, Zswitch _ -> true - | _ , _ -> false + | Zswitch _, Zswitch _ | Zproj _, Zproj _ -> true + | Zapp _ , _ | Zfix _, _ | Zswitch _, _ | Zproj _, _ -> false let rec compare_stack stk1 stk2 = match stk1, stk2 with @@ -40,15 +40,20 @@ let conv_vect fconv vect1 vect2 cu = !rcu else raise NotConvertible -let infos = ref (create_clos_infos betaiotazeta Environ.empty_env) - let rec conv_val env pb k v1 v2 cu = if v1 == v2 then cu else conv_whd env pb k (whd_val v1) (whd_val 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 -> check_sort_cmp_universes env pb s1 s2 cu; cu + | 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 + ** special cases in the code. + **) + assert false | Vprod p1, Vprod p2 -> let cu = conv_val env CONV k (dom p1) (dom p2) cu in conv_fun env pb k (codom p1) (codom p2) cu @@ -76,50 +81,53 @@ and conv_whd env pb k whd1 whd2 cu = | Vatom_stk(a1,stk1), Vatom_stk(a2,stk2) -> conv_atom env pb k a1 stk1 a2 stk2 cu | Vfun _, _ | _, Vfun _ -> - conv_val env CONV (k+1) (eta_whd k whd1) (eta_whd k whd2) cu - | _, Vatom_stk(Aiddef(_,v),stk) -> - conv_whd env pb k whd1 (force_whd v stk) cu - | Vatom_stk(Aiddef(_,v),stk), _ -> - conv_whd env pb k (force_whd v stk) whd2 cu - | _, _ -> raise NotConvertible + conv_val env CONV (k+1) (apply_whd k whd1) (apply_whd k whd2) cu + + | Vsort _, _ | Vprod _, _ | Vfix _, _ | Vcofix _, _ | Vconstr_const _, _ + | Vconstr_block _, _ | Vatom_stk _, _ -> raise NotConvertible + and conv_atom env pb k a1 stk1 a2 stk2 cu = +(* Pp.(msg_debug (str "conv_atom(" ++ pr_atom a1 ++ str ", " ++ pr_atom a2 ++ str ")")) ; *) match a1, a2 with - | Aind ind1, Aind ind2 -> - if eq_puniverses eq_ind ind1 ind2 && compare_stack stk1 stk2 + | Aind ((mi,i) as ind1) , Aind ind2 -> + if eq_ind ind1 ind2 && compare_stack stk1 stk2 then - conv_stack env k stk1 stk2 cu + if Environ.polymorphic_ind ind1 env + then + let mib = Environ.lookup_mind mi env in + let ulen = Univ.UContext.size mib.Declarations.mind_universes in + match stk1 , stk2 with + | [], [] -> assert (Int.equal ulen 0); cu + | Zapp args1 :: stk1' , Zapp args2 :: stk2' -> + assert (ulen <= nargs args1); + assert (ulen <= nargs args2); + let u1 = Array.init ulen (fun i -> uni_lvl_val (arg args1 i)) in + let u2 = Array.init ulen (fun i -> uni_lvl_val (arg args2 i)) in + let u1 = Univ.Instance.of_array u1 in + let u2 = Univ.Instance.of_array u2 in + let cu = convert_instances ~flex:false u1 u2 cu in + conv_arguments env ~from:ulen k args1 args2 + (conv_stack env k stk1' stk2' cu) + | _, _ -> assert false (* Should not happen if problem is well typed *) + else + 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 conv_stack env k stk1 stk2 cu else raise NotConvertible - | Aiddef(ik1,v1), Aiddef(ik2,v2) -> - begin - try - if Vars.eq_id_key ik1 ik2 && compare_stack stk1 stk2 then - conv_stack env k stk1 stk2 cu - else raise NotConvertible - with NotConvertible -> - if oracle_order Univ.out_punivs (oracle_of_infos !infos) - false ik1 ik2 then - conv_whd env pb k (whd_stack v1 stk1) (Vatom_stk(a2,stk2)) cu - else conv_whd env pb k (Vatom_stk(a1,stk1)) (whd_stack v2 stk2) cu - end - | Aiddef(ik1,v1), _ -> - conv_whd env pb k (force_whd v1 stk1) (Vatom_stk(a2,stk2)) cu - | _, Aiddef(ik2,v2) -> - conv_whd env pb k (Vatom_stk(a1,stk1)) (force_whd v2 stk2) cu - | _, _ -> raise NotConvertible + | Atype _ , _ | _, Atype _ -> assert false + | Aind _, _ | Aid _, _ -> raise NotConvertible -and conv_stack env k stk1 stk2 cu = +and conv_stack env ?from:(from=0) k stk1 stk2 cu = match stk1, stk2 with | [], [] -> cu | Zapp args1 :: stk1, Zapp args2 :: stk2 -> - conv_stack env k stk1 stk2 (conv_arguments env k args1 args2 cu) + conv_stack env k stk1 stk2 (conv_arguments env ~from:from k args1 args2 cu) | Zfix(f1,args1) :: stk1, Zfix(f2,args2) :: stk2 -> conv_stack env k stk1 stk2 - (conv_arguments env k args1 args2 (conv_fix env k f1 f2 cu)) + (conv_arguments env ~from:from k args1 args2 (conv_fix env k f1 f2 cu)) | Zswitch sw1 :: stk1, Zswitch sw2 :: stk2 -> if check_switch sw1 sw2 then let vt1,vt2 = type_of_switch sw1, type_of_switch sw2 in @@ -131,7 +139,11 @@ and conv_stack env k stk1 stk2 cu = done; conv_stack env k stk1 stk2 !rcu else raise NotConvertible - | _, _ -> raise NotConvertible + | Zproj p1 :: stk1, Zproj p2 :: stk2 -> + if Constant.equal p1 p2 then conv_stack env k stk1 stk2 cu + else raise NotConvertible + | [], _ | Zapp _ :: _, _ | Zfix _ :: _, _ | Zswitch _ :: _, _ + | Zproj _ :: _, _ -> raise NotConvertible and conv_fun env pb k f1 f2 cu = if f1 == f2 then cu @@ -159,98 +171,37 @@ and conv_cofix env k cf1 cf2 cu = conv_vect (conv_val env CONV (k + Array.length tcf1)) bcf1 bcf2 cu else raise NotConvertible -and conv_arguments env k args1 args2 cu = +and conv_arguments env ?from:(from=0) k args1 args2 cu = if args1 == args2 then cu else let n = nargs args1 in if Int.equal n (nargs args2) then let rcu = ref cu in - for i = 0 to n - 1 do + for i = from to n - 1 do rcu := conv_val env CONV k (arg args1 i) (arg args2 i) !rcu done; !rcu else raise NotConvertible -let rec eq_puniverses f (x,l1) (y,l2) cu = - if f x y then conv_universes l1 l2 cu - else raise NotConvertible - -and conv_universes l1 l2 cu = - if Univ.Instance.equal l1 l2 then cu else raise NotConvertible - -let rec conv_eq env pb t1 t2 cu = - if t1 == t2 then cu - else - match kind_of_term t1, kind_of_term t2 with - | Rel n1, Rel n2 -> - if Int.equal n1 n2 then cu else raise NotConvertible - | Meta m1, Meta m2 -> - if Int.equal m1 m2 then cu else raise NotConvertible - | Var id1, Var id2 -> - if Id.equal id1 id2 then cu else raise NotConvertible - | Sort s1, Sort s2 -> check_sort_cmp_universes env pb s1 s2 cu; cu - | Cast (c1,_,_), _ -> conv_eq env pb c1 t2 cu - | _, Cast (c2,_,_) -> conv_eq env pb t1 c2 cu - | Prod (_,t1,c1), Prod (_,t2,c2) -> - conv_eq env pb c1 c2 (conv_eq env CONV t1 t2 cu) - | Lambda (_,t1,c1), Lambda (_,t2,c2) -> conv_eq env CONV c1 c2 cu - | LetIn (_,b1,t1,c1), LetIn (_,b2,t2,c2) -> - conv_eq env pb c1 c2 (conv_eq env CONV b1 b2 cu) - | App (c1,l1), App (c2,l2) -> - conv_eq_vect env l1 l2 (conv_eq env CONV c1 c2 cu) - | Evar (e1,l1), Evar (e2,l2) -> - if Evar.equal e1 e2 then conv_eq_vect env l1 l2 cu - else raise NotConvertible - | Const c1, Const c2 -> eq_puniverses eq_constant c1 c2 cu - | Proj (p1,c1), Proj (p2,c2) -> - if eq_constant (Projection.constant p1) (Projection.constant p2) then - conv_eq env pb c1 c2 cu - else raise NotConvertible - | Ind c1, Ind c2 -> - eq_puniverses eq_ind c1 c2 cu - | Construct c1, Construct c2 -> - eq_puniverses eq_constructor c1 c2 cu - | Case (_,p1,c1,bl1), Case (_,p2,c2,bl2) -> - let pcu = conv_eq env CONV p1 p2 cu in - let ccu = conv_eq env CONV c1 c2 pcu in - conv_eq_vect env bl1 bl2 ccu - | Fix ((ln1, i1),(_,tl1,bl1)), Fix ((ln2, i2),(_,tl2,bl2)) -> - if Int.equal i1 i2 && Array.equal Int.equal ln1 ln2 then conv_eq_vect env tl1 tl2 (conv_eq_vect env bl1 bl2 cu) - else raise NotConvertible - | CoFix(ln1,(_,tl1,bl1)), CoFix(ln2,(_,tl2,bl2)) -> - if Int.equal ln1 ln2 then conv_eq_vect env tl1 tl2 (conv_eq_vect env bl1 bl2 cu) - else raise NotConvertible - | _ -> raise NotConvertible - -and conv_eq_vect env vt1 vt2 cu = - let len = Array.length vt1 in - if Int.equal len (Array.length vt2) then - let rcu = ref cu in - for i = 0 to len-1 do - rcu := conv_eq env CONV vt1.(i) vt2.(i) !rcu - done; !rcu - else raise NotConvertible - -let vconv pb env t1 t2 = - infos := create_clos_infos betaiotazeta env; - let _cu = - try conv_eq env pb t1 t2 (universes env) - with NotConvertible -> - let v1 = val_of_constr env t1 in - let v2 = val_of_constr env t2 in - let cu = conv_val env pb (nb_rel env) v1 v2 (universes env) in - cu - in () - -let _ = Reduction.set_vm_conv vconv - -let use_vm = ref false - -let set_use_vm b = - use_vm := b; - if b then Reduction.set_default_conv (fun cv_pb ?(l2r=false) -> vconv cv_pb) - else Reduction.set_default_conv (fun cv_pb ?(l2r=false) -> Reduction.conv_cmp cv_pb) - -let use_vm _ = !use_vm - - +let vm_conv_gen cv_pb env univs t1 t2 = + try + let v1 = val_of_constr env t1 in + let v2 = val_of_constr env t2 in + fst (conv_val env cv_pb (nb_rel env) v1 v2 univs) + with Not_found | Invalid_argument _ -> + (Pp.msg_warning + (Pp.str "Bytecode compilation failed, falling back to default conversion"); + Reduction.generic_conv cv_pb ~l2r:false (fun _ -> None) + full_transparent_state env univs t1 t2) + +let vm_conv cv_pb env t1 t2 = + let univs = Environ.universes env in + let b = + if cv_pb = CUMUL then Constr.leq_constr_univs univs t1 t2 + else Constr.eq_constr_univs univs t1 t2 + in + if not b then + let univs = (univs, checked_universes) in + let _ = vm_conv_gen cv_pb env univs t1 t2 in () + +let _ = Reduction.set_vm_conv vm_conv -- cgit v1.2.3