INCLUDE "debug.ml"
INCLUDE "utils.ml"
-INCLUDE "trace.ml"
+INCLUDE "log.ml"
open Format
open Ata
type jump =
+ | NOP of unit
| FIRST_CHILD of StateSet.t
| NEXT_SIBLING of StateSet.t
| FIRST_ELEMENT of StateSet.t
| NEXT_ELEMENT of StateSet.t
| TAGGED_DESCENDANT of StateSet.t * Tag.t
| TAGGED_FOLLOWING of StateSet.t * Tag.t
- | SELECT_DESCENDANT of StateSet.t * Ptset.Int.t * Tree.unordered_set
- | SELECT_FOLLOWING of StateSet.t * Ptset.Int.t * Tree.unordered_set
+ | SELECT_DESCENDANT of StateSet.t * Ptset.Int.t * Tree.tag_list
+ | SELECT_FOLLOWING of StateSet.t * Ptset.Int.t * Tree.tag_list
| TAGGED_CHILD of StateSet.t * Tag.t
- | TAGGED_FOLLOWING_SIBLING of StateSet.t * Tag.t
- | SELECT_CHILD of StateSet.t * Ptset.Int.t * Tree.unordered_set
- | SELECT_FOLLOWING_SIBLING of StateSet.t * Ptset.Int.t * Tree.unordered_set
+ | TAGGED_SIBLING of StateSet.t * Tag.t
+ | SELECT_CHILD of StateSet.t * Ptset.Int.t * Tree.tag_list
+ | SELECT_SIBLING of StateSet.t * Ptset.Int.t * Tree.tag_list
| TAGGED_SUBTREE of StateSet.t * Tag.t
| ELEMENT_SUBTREE of StateSet.t
type dir = DIR_LEFT | DIR_RIGHT
-let _nop = None
-let _first_child s = Some (FIRST_CHILD s)
-let _next_sibling s = Some (NEXT_SIBLING s)
-let _first_element s = Some (FIRST_ELEMENT s)
-let _next_element s = Some (NEXT_ELEMENT s)
-let _tagged_descendant s t = Some (TAGGED_DESCENDANT(s,t))
-let _tagged_following s t = Some (TAGGED_FOLLOWING(s,t))
-let _select_descendant s t = Some (SELECT_DESCENDANT(s,t, Tree.unordered_set_of_set t))
-let _select_following s t = Some (SELECT_FOLLOWING(s,t, Tree.unordered_set_of_set t))
-let _tagged_child s t = Some (TAGGED_CHILD(s,t))
-let _tagged_following_sibling s t = Some (TAGGED_FOLLOWING_SIBLING(s,t))
-let _select_child s t = Some (SELECT_CHILD(s,t, Tree.unordered_set_of_set t))
-let _select_following_sibling s t = Some (SELECT_FOLLOWING_SIBLING(s,t, Tree.unordered_set_of_set t))
-let _tagged_subtree s t = Some (TAGGED_SUBTREE (s, t))
-let _element_subtree s = Some (ELEMENT_SUBTREE s)
+
+let _nop = NOP ()
+let _first_child s = FIRST_CHILD s
+let _next_sibling s = NEXT_SIBLING s
+let _first_element s = FIRST_ELEMENT s
+let _next_element s = NEXT_ELEMENT s
+let _tagged_descendant s t = TAGGED_DESCENDANT(s,t)
+let _tagged_following s t = TAGGED_FOLLOWING(s,t)
+let _select_descendant s t = SELECT_DESCENDANT(s,t, Tree.tag_list_of_set t)
+let _select_following s t = SELECT_FOLLOWING(s,t, Tree.tag_list_of_set t)
+let _tagged_child s t = TAGGED_CHILD(s,t)
+let _tagged_following_sibling s t = TAGGED_SIBLING(s,t)
+let _select_child s t = SELECT_CHILD(s,t, Tree.tag_list_of_set t)
+let _select_following_sibling s t = SELECT_SIBLING(s,t, Tree.tag_list_of_set t)
+let _tagged_subtree s t = TAGGED_SUBTREE (s, t)
+let _element_subtree s = ELEMENT_SUBTREE s
let jump_stat_table = Hashtbl.create 17
let jump_stat_init () = Hashtbl.clear jump_stat_table
let jump_stat j =
let i = try Hashtbl.find jump_stat_table j with Not_found -> 0 in
- Hashtbl.replace jump_stat_table j (i+1)
+ Hashtbl.replace jump_stat_table j (i+1)
let print_jump fmt j =
match j with
- | FIRST_CHILD _ -> fprintf fmt "first_child"
- | NEXT_SIBLING _ -> fprintf fmt "next_sibling"
- | FIRST_ELEMENT _ -> fprintf fmt "first_element"
- | NEXT_ELEMENT _ -> fprintf fmt "next_element"
+ | NOP _ -> fprintf fmt "nop"
+ | FIRST_CHILD _ -> fprintf fmt "first_child"
+ | NEXT_SIBLING _ -> fprintf fmt "next_sibling"
+ | FIRST_ELEMENT _ -> fprintf fmt "first_element"
+ | NEXT_ELEMENT _ -> fprintf fmt "next_element"
- | TAGGED_DESCENDANT (_, tag) -> fprintf fmt "tagged_descendant(%s)" (Tag.to_string tag)
+ | TAGGED_DESCENDANT (_, tag) -> fprintf fmt "tagged_descendant(%s)" (Tag.to_string tag)
- | TAGGED_FOLLOWING (_, tag) -> fprintf fmt "tagged_following(%s)" (Tag.to_string tag)
+ | TAGGED_FOLLOWING (_, tag) -> fprintf fmt "tagged_following(%s)" (Tag.to_string tag)
- | SELECT_DESCENDANT (_, tags, _) -> fprintf fmt "select_descendant(%a)"
- TagSet.print (TagSet.inj_positive tags)
+ | SELECT_DESCENDANT (_, tags, _) -> fprintf fmt "select_descendant(%a)"
+ TagSet.print (TagSet.inj_positive tags)
- | SELECT_FOLLOWING (_, tags, _) -> fprintf fmt "select_following(%a)"
- TagSet.print (TagSet.inj_positive tags)
+ | SELECT_FOLLOWING (_, tags, _) -> fprintf fmt "select_following(%a)"
+ TagSet.print (TagSet.inj_positive tags)
- | TAGGED_CHILD (_, tag) -> fprintf fmt "tagged_child(%s)" (Tag.to_string tag)
+ | TAGGED_CHILD (_, tag) -> fprintf fmt "tagged_child(%s)" (Tag.to_string tag)
- | TAGGED_FOLLOWING_SIBLING (_, tag) ->
- fprintf fmt "tagged_following_sibling(%s)" (Tag.to_string tag)
+ | TAGGED_SIBLING (_, tag) ->
+ fprintf fmt "tagged_following_sibling(%s)" (Tag.to_string tag)
- | SELECT_CHILD (_, tags, _) -> fprintf fmt "select_child(%a)"
- TagSet.print (TagSet.inj_positive tags)
+ | SELECT_CHILD (_, tags, _) -> fprintf fmt "select_child(%a)"
+ TagSet.print (TagSet.inj_positive tags)
- | SELECT_FOLLOWING_SIBLING (_, tags, _) -> fprintf fmt "select_following_sibling(%a)"
- TagSet.print (TagSet.inj_positive tags)
+ | SELECT_SIBLING (_, tags, _) -> fprintf fmt "select_following_sibling(%a)"
+ TagSet.print (TagSet.inj_positive tags)
- | TAGGED_SUBTREE (_, tag) -> fprintf fmt "tagged_subtree(%s)" (Tag.to_string tag)
- | ELEMENT_SUBTREE (_) -> fprintf fmt "element_subtree"
+ | TAGGED_SUBTREE (_, tag) -> fprintf fmt "tagged_subtree(%s)" (Tag.to_string tag)
+ | ELEMENT_SUBTREE (_) -> fprintf fmt "element_subtree"
let jump_stat_summary fmt =
fprintf fmt "Jump function summary:\n%!";
type opcode =
- | CACHE
- | RETURN
+ | RETURN of unit
| LEFT of Translist.t * jump
| RIGHT of Translist.t * jump
| BOTH of Translist.t * jump * jump
+ | CACHE of unit
type t = opcode Cache.Lvl2.t
-let dummy = CACHE
+let dummy = CACHE ()
+let return = RETURN ()
let print_opcode fmt o = match o with
- | CACHE -> fprintf fmt "CACHE"
- | RETURN -> fprintf fmt "RETURN"
+ | CACHE _ -> fprintf fmt "CACHE"
+ | RETURN _ -> fprintf fmt "RETURN"
| LEFT (tl, j) -> fprintf fmt "LEFT(\n[%a], %a)" Translist.print tl print_jump j
| RIGHT (tl, j) -> fprintf fmt "RIGHT(\n[%a], %a)" Translist.print tl print_jump j
| BOTH (tl, j1, j2) -> fprintf fmt "BOTH(\n[%a], %a, %a)" Translist.print tl print_jump j1 print_jump j2
-
-let show_stats a =
- let count = ref 0 in
- Cache.Lvl2.iteri (fun _ _ _ b -> if not b then incr count) a;
- eprintf "%!L2JIT: %i used entries\n%!" !count
-
-let create () =
- let v = Cache.Lvl2.create 4096 dummy in
- if !Options.verbose then
- at_exit (fun () -> show_stats v);
- v
+(*
+ let print_cache fmt d =
+ let c = Cache.Lvl2.to_array d in
+ Array.iteri begin fun tag a ->
+ let tagstr = Tag.to_string tag in
+ if a != Cache.Lvl2.dummy_line d && tagstr <> "<INVALID TAG>"
+ then begin
+ fprintf fmt "Entry %s: \n" tagstr;
+ Array.iter (fun o -> if o != dummy then begin
+ print_opcode fmt o;
+ fprintf fmt "\n%!" end) a;
+ fprintf fmt "---------------------------\n%!"
+ end
+ end c
+*)
+let create () = Cache.Lvl2.create 512 dummy
+(*
+ let stats fmt c =
+ let d = Cache.Lvl2.to_array c in
+ let len = Array.fold_left (fun acc a -> Array.length a + acc) 0 d in
+ let lvl1 = Array.fold_left (fun acc a -> if Array.length a == 0 then acc else acc+1) 0 d in
+ let lvl2 = Array.fold_left (fun acc a ->
+ Array.fold_left (fun acc2 a2 -> if a2 == dummy then acc2 else acc2+1)
+ acc a) 0 d
+ in
+ fprintf fmt "L2JIT Statistics:
+ \t%i entries
+ \t%i used L1 lines
+ \t%i used L2 lines
+ \ttable size: %ikb\n"
+ len lvl1 lvl2 (Ocaml.size_kb d);
+ fprintf fmt "%s" "L2JIT Content:\n";
+ print_cache fmt c
+*)
let find t tag set = Cache.Lvl2.find t (Uid.to_int set.StateSet.Node.id) tag
let add t tag set v = Cache.Lvl2.add t (Uid.to_int set.StateSet.Node.id) tag v
-let collect_trans tag ((a_t, a_s1, a_s2) as acc) (labels, tr) =
- if TagSet.mem tag labels
- then
- let _, _, _, f = Transition.node tr in
- let s1, s2 = Formula.st f in
- (Translist.cons tr a_t,
- StateSet.union s1 a_s1,
- StateSet.union s2 a_s2)
- else acc
let has_text l = Ptset.Int.mem Tag.pcdata l
let rec translate_jump tree tag (jkind:Ata.jump_kind) dir s =
let child, desc, sib, fol = Tree.tags tree tag in
- match jkind, dir with
- | NIL, _ -> None
- | NODE, DIR_LEFT -> Some (FIRST_CHILD s)
- | STAR, DIR_LEFT -> Some (FIRST_ELEMENT s)
- | NODE, DIR_RIGHT -> Some (NEXT_SIBLING s)
- | STAR, DIR_RIGHT -> Some (NEXT_ELEMENT s)
- | JUMP_ONE t, _ ->
- let l_one, l_many, tagged_one, select_one, any, any_notext =
- if dir = DIR_LEFT then
- child, desc, _tagged_child, _select_child,_first_child, _first_element
- else
- sib, fol, _tagged_following_sibling, _select_following_sibling,
- _next_sibling, _next_element
- in
- let labels = Ptset.Int.inter l_one t in
- let c = Ptset.Int.cardinal labels in
- if c == 0 then None
- else if Ptset.Int.for_all (fun lab -> not (Ptset.Int.mem lab l_many)) labels then
- translate_jump tree tag (JUMP_MANY(labels)) dir s
- else if c == 1 then tagged_one s (Ptset.Int.choose labels)
- else if c > 5 then if has_text labels then any s else any_notext s
- else select_one s labels
-
- | JUMP_MANY t, _ ->
- let l_many, tagged_many, select_many, any, any_notext =
- if dir == DIR_LEFT then
- desc, _tagged_descendant, _select_descendant,_first_child, _first_element
- else
- fol, _tagged_following, _select_following, _next_sibling, _next_element
- in
- let labels = Ptset.Int.inter l_many t in
- let c = Ptset.Int.cardinal labels in
- if c == 0 then _nop
- else if c == 1 then tagged_many s (Ptset.Int.choose labels)
- else if c > 5 then if has_text labels then any s else any_notext s
- else select_many s labels
-
- | CAPTURE_MANY (t), DIR_LEFT ->
- if Ptset.Int.is_singleton t then Some (TAGGED_SUBTREE(s, Ptset.Int.choose t))
- else if t == Tree.element_tags tree then Some (ELEMENT_SUBTREE s)
- else assert false
- | _ -> assert false
+ let not_elements =
+ Ptset.Int.add Tag.pcdata
+ (Ptset.Int.add Tag.attribute
+ (Ptset.Int.add Tag.attribute_data
+ (Tree.attribute_tags tree)))
+ in
+ match jkind, dir with
+ | NIL, _ -> _nop
+ | NODE, DIR_LEFT -> FIRST_CHILD s
+ | STAR, DIR_LEFT -> FIRST_ELEMENT s
+ | NODE, DIR_RIGHT -> NEXT_SIBLING s
+ | STAR, DIR_RIGHT -> NEXT_ELEMENT s
+ | JUMP_ONE t, _ ->
+ let l_one, l_many, tagged_one, select_one, any, any_notext =
+ if dir = DIR_LEFT then
+ child, desc, _tagged_child, _select_child,_first_child, _first_element
+ else
+ sib, fol, _tagged_following_sibling, _select_following_sibling,
+ _next_sibling, _next_element
+ in
+ let labels = Ptset.Int.inter l_one t in
+ let c = Ptset.Int.cardinal labels in
+ if c == 0 then _nop
+ else if Ptset.Int.for_all (fun lab -> not (Ptset.Int.mem lab l_many)) labels then
+ translate_jump tree tag (JUMP_MANY(labels)) dir s
+ else if c == 1 then tagged_one s (Ptset.Int.choose labels)
+ else if c > 5 then if has_text labels then any s else any_notext s
+ else select_one s labels
+
+ | JUMP_MANY t, _ ->
+ let l_many, tagged_many, select_many, any, any_notext =
+ if dir == DIR_LEFT then
+ desc, _tagged_descendant, _select_descendant,_first_child, _first_element
+ else
+ fol, _tagged_following, _select_following, _next_sibling, _next_element
+ in
+ let labels = Ptset.Int.inter l_many t in
+ let c = Ptset.Int.cardinal labels in
+ if c == 0 then _nop
+ else
+ let not_t = Ptset.Int.diff l_many labels in
+ let () =
+ LOG(__ "level2-jit" 3 "Would jump for tag %s to labels %a, not relevant tags: %a"
+ (Tag.to_string tag)
+ TagSet.print (TagSet.inj_positive labels)
+ TagSet.print (TagSet.inj_positive not_t))
+ in
+ if Ptset.Int.subset not_t not_elements then
+ if has_text labels then any s else any_notext s
+ else if c == 1 then tagged_many s (Ptset.Int.choose labels)
+ else
+ if c >= 5 then
+ if has_text labels then any s else any_notext s
+ else select_many s labels
+
+ | CAPTURE_MANY (t), DIR_LEFT ->
+ if Ptset.Int.is_singleton t then TAGGED_SUBTREE(s, Ptset.Int.choose t)
+ else if t == Tree.element_tags tree then ELEMENT_SUBTREE s
+ else assert false
+ | _ -> assert false
+
+let count = ref 0
+let () = at_exit (fun () -> Logger.verbose Format.err_formatter "Compute jump called %i times\n" !count)
+module Memo = Hashtbl.Make(struct
+ type t = Tag.t * StateSet.t * dir
+ let equal (a,b,c) (d,e,f) = a == d && b == e && c == f
+ let hash (a, b, c) = HASHINT3(a, Uid.to_int b.StateSet.Node.id, (Obj.magic c))
+end)
+
+let memo = Memo.create 1024
+let init () = Memo.clear memo
let compute_jump auto tree tag states dir =
- if !Options.no_jump then
- if dir == DIR_LEFT then Some (FIRST_CHILD states)
- else Some (NEXT_SIBLING states)
+ if !Config.no_jump then
+ if dir == DIR_LEFT then FIRST_CHILD states
+ else NEXT_SIBLING states
else
- let jkind = Ata.top_down_approx auto states tree in
- translate_jump tree tag jkind dir states
-
-let mk_left tr_list j =
- match j with
- Some x -> LEFT(tr_list, x)
- | _ -> RETURN
-
-let mk_right tr_list j =
- match j with
- Some x -> RIGHT(tr_list, x)
- | _ -> RETURN
-
-let mk_both tr_list j1 j2 =
- match j1, j2 with
- | Some x1, Some x2 -> BOTH(tr_list, x1, x2)
- | None, Some x -> RIGHT(tr_list,x)
- | Some x, None -> LEFT(tr_list, x)
- | None, None -> RETURN
+ try
+ Memo.find memo (tag, states, dir)
+ with
+ Not_found -> begin
+ incr count;
+ let jkind = Ata.top_down_approx auto states tree in
+ let jump = translate_jump tree tag jkind dir states in
+ LOG(__ "level2-jit" 2
+ "Computed jumps for %s %a %s, from %a : %a%!"
+ (Tag.to_string tag)
+ StateSet.print states
+ (if dir == DIR_LEFT then "left" else "right")
+ Ata.print_kind jkind
+ print_jump jump
+ );
+ Memo.add memo (tag, states, dir) jump; jump
+ end
let compile cache2 auto tree tag states =
let tr_list, states1, states2 =
- StateSet.fold
- (fun q acc ->
- List.fold_left (collect_trans tag)
- acc
- (Hashtbl.find auto.trans q))
- states
- (Translist.nil, StateSet.empty, StateSet.empty)
+ Ata.get_trans (*~attributes:(TagSet.inj_positive (Tree.attribute_tags tree))*) auto states tag
in
let op =
let empty_s1 = StateSet.is_empty states1 in
let empty_s2 = StateSet.is_empty states2 in
- if empty_s1 && empty_s2 then RETURN
- else if empty_s1 then
- mk_right tr_list
- (compute_jump auto tree tag states2 DIR_RIGHT)
- else if empty_s2 then
- mk_left tr_list
- (compute_jump auto tree tag states1 DIR_LEFT)
- else
- let j1 = compute_jump auto tree tag states1 DIR_LEFT in
- let j2 = compute_jump auto tree tag states2 DIR_RIGHT in
- mk_both tr_list j1 j2
+ if empty_s1 && empty_s2 then return
+ else if empty_s1 then
+ RIGHT (tr_list,
+ compute_jump auto tree tag states2 DIR_RIGHT)
+ else if empty_s2 then
+ LEFT (tr_list,
+ compute_jump auto tree tag states1 DIR_LEFT)
+ else
+ let j1 = compute_jump auto tree tag states1 DIR_LEFT in
+ let j2 = compute_jump auto tree tag states2 DIR_RIGHT in
+ BOTH (tr_list, j1, j2);
+ in
+ let op = match op with
+ (*BOTH(_, NOP _, NOP _) | LEFT(_, NOP _) | RIGHT(_, NOP _) -> RETURN() *)
+ | BOTH(tr, ((NOP _) as l) , NOP _) -> LEFT (tr, l)
+ | BOTH(tr, l, NOP _) -> LEFT (tr, l)
+ | BOTH(tr, NOP _, r) -> RIGHT (tr, r)
+ | _ -> op
in
- add cache2 tag states op;
- op
+ if not !Config.no_cache then add cache2 tag states op;
+ op
let get_transitions = function
- | CACHE | RETURN -> failwith "get_transitions"
+ | CACHE _ | RETURN _ -> failwith "get_transitions"
| LEFT (tr, _)
| RIGHT (tr, _)
| BOTH (tr, _, _) -> tr
projects / SXSI / xpathcomp.git / blobdiff