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Basic handling of recursive functions in Iflow
author Adam Chlipala <adamc@hcoop.net>
date Sat, 01 May 2010 09:51:46 -0400
parents 338be96f8533
children 56bd4a4f6e66
rev   line source
adamc@1185 1 (* Copyright (c) 2008-2009, Adam Chlipala
adamc@443 2 * All rights reserved.
adamc@443 3 *
adamc@443 4 * Redistribution and use in source and binary forms, with or without
adamc@443 5 * modification, are permitted provided that the following conditions are met:
adamc@443 6 *
adamc@443 7 * - Redistributions of source code must retain the above copyright notice,
adamc@443 8 * this list of conditions and the following disclaimer.
adamc@443 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@443 10 * this list of conditions and the following disclaimer in the documentation
adamc@443 11 * and/or other materials provided with the distribution.
adamc@443 12 * - The names of contributors may not be used to endorse or promote products
adamc@443 13 * derived from this software without specific prior written permission.
adamc@443 14 *
adamc@443 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@443 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@443 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@443 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@443 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@443 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@443 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@443 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@443 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@443 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@443 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@443 26 *)
adamc@443 27
adamc@443 28 structure ESpecialize :> ESPECIALIZE = struct
adamc@443 29
adamc@443 30 open Core
adamc@443 31
adamc@443 32 structure E = CoreEnv
adamc@443 33 structure U = CoreUtil
adamc@443 34
adamc@479 35 type skey = exp
adamc@453 36
adamc@453 37 structure K = struct
adamc@479 38 type ord_key = exp list
adamc@479 39 val compare = Order.joinL U.Exp.compare
adamc@443 40 end
adamc@443 41
adamc@453 42 structure KM = BinaryMapFn(K)
adamc@443 43 structure IM = IntBinaryMap
adamc@482 44 structure IS = IntBinarySet
adamc@443 45
adamc@626 46 val freeVars = U.Exp.foldB {kind = fn (_, _, xs) => xs,
adamc@488 47 con = fn (_, _, xs) => xs,
adamc@488 48 exp = fn (bound, e, xs) =>
adamc@488 49 case e of
adamc@488 50 ERel x =>
adamc@488 51 if x >= bound then
adamc@488 52 IS.add (xs, x - bound)
adamc@488 53 else
adamc@488 54 xs
adamc@488 55 | _ => xs,
adamc@488 56 bind = fn (bound, b) =>
adamc@488 57 case b of
adamc@488 58 U.Exp.RelE _ => bound + 1
adamc@488 59 | _ => bound}
adamc@488 60 0 IS.empty
adamc@479 61
adamc@1120 62 fun isPolyT (t, _) =
adamc@1120 63 case t of
adamc@1120 64 TFun (_, ran) => isPolyT ran
adamc@1120 65 | TCFun _ => true
adamc@1120 66 | TKFun _ => true
adamc@1120 67 | _ => false
adamc@1120 68
adamc@1120 69 fun isPoly (d, _) =
adamc@1120 70 case d of
adamc@1120 71 DVal (_, _, t, _, _) => isPolyT t
adamc@1120 72 | DValRec vis => List.exists (isPolyT o #3) vis
adamc@1120 73 | _ => false
adamc@522 74
adamc@488 75 fun positionOf (v : int, ls) =
adamc@488 76 let
adamc@488 77 fun pof (pos, ls) =
adamc@488 78 case ls of
adamc@488 79 [] => raise Fail "Defunc.positionOf"
adamc@488 80 | v' :: ls' =>
adamc@488 81 if v = v' then
adamc@488 82 pos
adamc@488 83 else
adamc@488 84 pof (pos + 1, ls')
adamc@488 85 in
adamc@488 86 pof (0, ls)
adamc@488 87 end
adamc@488 88
adamc@1079 89 fun squish fvs =
adamc@626 90 U.Exp.mapB {kind = fn _ => fn k => k,
adamc@488 91 con = fn _ => fn c => c,
adamc@488 92 exp = fn bound => fn e =>
adamc@479 93 case e of
adamc@488 94 ERel x =>
adamc@488 95 if x >= bound then
adamc@1079 96 ERel (positionOf (x - bound, fvs) + bound)
adamc@488 97 else
adamc@488 98 e
adamc@488 99 | _ => e,
adamc@488 100 bind = fn (bound, b) =>
adamc@488 101 case b of
adamc@488 102 U.Exp.RelE _ => bound + 1
adamc@488 103 | _ => bound}
adamc@488 104 0
adamc@453 105
adamc@443 106 type func = {
adamc@443 107 name : string,
adamc@453 108 args : int KM.map,
adamc@443 109 body : exp,
adamc@443 110 typ : con,
adamc@443 111 tag : string
adamc@443 112 }
adamc@443 113
adamc@443 114 type state = {
adamc@443 115 maxName : int,
adamc@443 116 funcs : func IM.map,
adamc@1079 117 decls : (string * int * con * exp * string) list,
adamc@1080 118 specialized : IS.set
adamc@443 119 }
adamc@443 120
adamc@488 121 fun default (_, x, st) = (x, st)
adamc@443 122
adamc@800 123 structure SS = BinarySetFn(struct
adamc@800 124 type ord_key = string
adamc@800 125 val compare = String.compare
adamc@800 126 end)
adamc@800 127
adamc@800 128 val mayNotSpec = ref SS.empty
adamc@800 129
adamc@1080 130 fun specialize' (funcs, specialized) file =
adamc@443 131 let
adamc@488 132 fun bind (env, b) =
adamc@488 133 case b of
adamc@521 134 U.Decl.RelE xt => xt :: env
adamc@521 135 | _ => env
adamc@488 136
adamc@1080 137 fun exp (env, e as (_, loc), st : state) =
adamc@482 138 let
adamc@721 139 (*val () = Print.prefaces "exp" [("e", CorePrint.p_exp CoreEnv.empty
adamc@721 140 (e, ErrorMsg.dummySpan))]*)
adamc@721 141
adamc@1080 142 fun getApp (e, _) =
adamc@482 143 case e of
adamc@488 144 ENamed f => SOME (f, [])
adamc@482 145 | EApp (e1, e2) =>
adamc@1080 146 (case getApp e1 of
adamc@482 147 NONE => NONE
adamc@488 148 | SOME (f, xs) => SOME (f, xs @ [e2]))
adamc@482 149 | _ => NONE
adamc@1080 150
adamc@1080 151 val getApp = fn e => case getApp e of
adamc@1080 152 v as SOME (_, _ :: _) => v
adamc@1080 153 | _ => NONE
adamc@1080 154
adamc@1080 155 fun default () =
adamc@1080 156 case #1 e of
adamc@1080 157 EPrim _ => (e, st)
adamc@1080 158 | ERel _ => (e, st)
adamc@1080 159 | ENamed _ => (e, st)
adamc@1080 160 | ECon (_, _, _, NONE) => (e, st)
adamc@1080 161 | ECon (dk, pc, cs, SOME e) =>
adamc@1080 162 let
adamc@1080 163 val (e, st) = exp (env, e, st)
adamc@1080 164 in
adamc@1080 165 ((ECon (dk, pc, cs, SOME e), loc), st)
adamc@1080 166 end
adamc@1080 167 | EFfi _ => (e, st)
adamc@1080 168 | EFfiApp (m, x, es) =>
adamc@1080 169 let
adamc@1080 170 val (es, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st es
adamc@1080 171 in
adamc@1080 172 ((EFfiApp (m, x, es), loc), st)
adamc@1080 173 end
adamc@1080 174 | EApp (e1, e2) =>
adamc@1080 175 let
adamc@1080 176 val (e1, st) = exp (env, e1, st)
adamc@1080 177 val (e2, st) = exp (env, e2, st)
adamc@1080 178 in
adamc@1080 179 ((EApp (e1, e2), loc), st)
adamc@1080 180 end
adamc@1080 181 | EAbs (x, d, r, e) =>
adamc@1080 182 let
adamc@1080 183 val (e, st) = exp ((x, d) :: env, e, st)
adamc@1080 184 in
adamc@1080 185 ((EAbs (x, d, r, e), loc), st)
adamc@1080 186 end
adamc@1080 187 | ECApp (e, c) =>
adamc@1080 188 let
adamc@1080 189 val (e, st) = exp (env, e, st)
adamc@1080 190 in
adamc@1080 191 ((ECApp (e, c), loc), st)
adamc@1080 192 end
adamc@1185 193 | ECAbs _ => (e, st)
adamc@1120 194 | EKAbs _ => (e, st)
adamc@1080 195 | EKApp (e, k) =>
adamc@1080 196 let
adamc@1080 197 val (e, st) = exp (env, e, st)
adamc@1080 198 in
adamc@1080 199 ((EKApp (e, k), loc), st)
adamc@1080 200 end
adamc@1080 201 | ERecord fs =>
adamc@1080 202 let
adamc@1080 203 val (fs, st) = ListUtil.foldlMap (fn ((c1, e, c2), st) =>
adamc@1080 204 let
adamc@1080 205 val (e, st) = exp (env, e, st)
adamc@1080 206 in
adamc@1080 207 ((c1, e, c2), st)
adamc@1080 208 end) st fs
adamc@1080 209 in
adamc@1080 210 ((ERecord fs, loc), st)
adamc@1080 211 end
adamc@1080 212 | EField (e, c, cs) =>
adamc@1080 213 let
adamc@1080 214 val (e, st) = exp (env, e, st)
adamc@1080 215 in
adamc@1080 216 ((EField (e, c, cs), loc), st)
adamc@1080 217 end
adamc@1080 218 | EConcat (e1, c1, e2, c2) =>
adamc@1080 219 let
adamc@1080 220 val (e1, st) = exp (env, e1, st)
adamc@1080 221 val (e2, st) = exp (env, e2, st)
adamc@1080 222 in
adamc@1080 223 ((EConcat (e1, c1, e2, c2), loc), st)
adamc@1080 224 end
adamc@1080 225 | ECut (e, c, cs) =>
adamc@1080 226 let
adamc@1080 227 val (e, st) = exp (env, e, st)
adamc@1080 228 in
adamc@1080 229 ((ECut (e, c, cs), loc), st)
adamc@1080 230 end
adamc@1080 231 | ECutMulti (e, c, cs) =>
adamc@1080 232 let
adamc@1080 233 val (e, st) = exp (env, e, st)
adamc@1080 234 in
adamc@1080 235 ((ECutMulti (e, c, cs), loc), st)
adamc@1080 236 end
adamc@1080 237
adamc@1080 238 | ECase (e, pes, cs) =>
adamc@1080 239 let
adamc@1080 240 val (e, st) = exp (env, e, st)
adamc@1080 241 val (pes, st) = ListUtil.foldlMap (fn ((p, e), st) =>
adamc@1080 242 let
adamc@1080 243 val (e, st) = exp (E.patBindsL p @ env, e, st)
adamc@1080 244 in
adamc@1080 245 ((p, e), st)
adamc@1080 246 end) st pes
adamc@1080 247 in
adamc@1080 248 ((ECase (e, pes, cs), loc), st)
adamc@1080 249 end
adamc@1080 250
adamc@1080 251 | EWrite e =>
adamc@1080 252 let
adamc@1080 253 val (e, st) = exp (env, e, st)
adamc@1080 254 in
adamc@1080 255 ((EWrite e, loc), st)
adamc@1080 256 end
adamc@1080 257 | EClosure (n, es) =>
adamc@1080 258 let
adamc@1080 259 val (es, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st es
adamc@1080 260 in
adamc@1080 261 ((EClosure (n, es), loc), st)
adamc@1080 262 end
adamc@1080 263 | ELet (x, t, e1, e2) =>
adamc@1080 264 let
adamc@1080 265 val (e1, st) = exp (env, e1, st)
adamc@1080 266 val (e2, st) = exp ((x, t) :: env, e2, st)
adamc@1080 267 in
adamc@1080 268 ((ELet (x, t, e1, e2), loc), st)
adamc@1080 269 end
adamc@1080 270 | EServerCall (n, es, t) =>
adamc@1080 271 let
adamc@1080 272 val (es, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st es
adamc@1080 273 in
adamc@1080 274 ((EServerCall (n, es, t), loc), st)
adamc@1080 275 end
adamc@482 276 in
adamc@482 277 case getApp e of
adamc@1080 278 NONE => default ()
adamc@488 279 | SOME (f, xs) =>
adamc@485 280 case IM.find (#funcs st, f) of
adamc@1080 281 NONE => default ()
adamc@485 282 | SOME {name, args, body, typ, tag} =>
adamc@488 283 let
adamc@1080 284 val (xs, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st xs
adamc@1080 285
adamc@721 286 (*val () = Print.prefaces "Consider" [("e", CorePrint.p_exp CoreEnv.empty
adamc@721 287 (e, ErrorMsg.dummySpan))]*)
adamc@721 288
adamc@1185 289 val functionInside = U.Con.exists {kind = fn _ => false,
adamc@1185 290 con = fn TFun _ => true
adamc@1185 291 | CFfi ("Basis", "transaction") => true
adamc@1185 292 | CFfi ("Basis", "eq") => true
adamc@1185 293 | CFfi ("Basis", "num") => true
adamc@1185 294 | CFfi ("Basis", "ord") => true
adamc@1185 295 | CFfi ("Basis", "show") => true
adamc@1185 296 | CFfi ("Basis", "read") => true
adamc@1185 297 | CFfi ("Basis", "sql_injectable_prim") => true
adamc@1185 298 | CFfi ("Basis", "sql_injectable") => true
adamc@1185 299 | _ => false}
adamc@488 300 val loc = ErrorMsg.dummySpan
adamc@488 301
adamc@1080 302 fun findSplit av (xs, typ, fxs, fvs, fin) =
adamc@488 303 case (#1 typ, xs) of
adamc@488 304 (TFun (dom, ran), e :: xs') =>
adamc@1078 305 let
adamc@1079 306 val av = case #1 e of
adamc@1079 307 ERel _ => av
adamc@1079 308 | _ => false
adamc@1078 309 in
adamc@1079 310 if functionInside dom orelse (av andalso case #1 e of
adamc@1079 311 ERel _ => true
adamc@1079 312 | _ => false) then
adamc@1079 313 findSplit av (xs',
adamc@1079 314 ran,
adamc@1079 315 e :: fxs,
adamc@1080 316 IS.union (fvs, freeVars e),
adamc@1080 317 fin orelse functionInside dom)
adamc@1078 318 else
adamc@1080 319 (rev fxs, xs, fvs, fin)
adamc@1078 320 end
adamc@1080 321 | _ => (rev fxs, xs, fvs, fin)
adamc@488 322
adamc@1080 323 val (fxs, xs, fvs, fin) = findSplit true (xs, typ, [], IS.empty, false)
adamc@1079 324
adamc@1079 325 val fxs' = map (squish (IS.listItems fvs)) fxs
adamc@488 326 in
adamc@800 327 (*Print.preface ("fxs'", Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs');*)
adamc@1080 328 if not fin
adamc@1080 329 orelse List.all (fn (ERel _, _) => true
adamc@1080 330 | _ => false) fxs'
adamc@1079 331 orelse (IS.numItems fvs >= length fxs
adamc@1079 332 andalso IS.exists (fn n => functionInside (#2 (List.nth (env, n)))) fvs) then
adamc@1083 333 ((*Print.prefaces "No" [("name", Print.PD.string name),
adamc@1120 334 ("f", Print.PD.string (Int.toString f)),
adamc@1083 335 ("fxs'",
adamc@1083 336 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*)
adamc@1083 337 default ())
adamc@488 338 else
adamc@1079 339 case (KM.find (args, fxs'),
adamc@1083 340 SS.member (!mayNotSpec, name) (*orelse IS.member (#specialized st, f)*)) of
adamc@800 341 (SOME f', _) =>
adamc@485 342 let
adamc@488 343 val e = (ENamed f', loc)
adamc@488 344 val e = IS.foldr (fn (arg, e) => (EApp (e, (ERel arg, loc)), loc))
adamc@488 345 e fvs
adamc@1079 346 val e = foldl (fn (arg, e) => (EApp (e, arg), loc))
adamc@488 347 e xs
adamc@488 348 in
adamc@488 349 (*Print.prefaces "Brand new (reuse)"
adamc@721 350 [("e'", CorePrint.p_exp CoreEnv.empty e)];*)
adamc@1080 351 (e, st)
adamc@488 352 end
adamc@1083 353 | (_, true) => ((*Print.prefaces ("No!(" ^ name ^ ")")
adamc@818 354 [("fxs'",
adamc@818 355 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*)
adamc@1080 356 default ())
adamc@800 357 | (NONE, false) =>
adamc@488 358 let
adamc@800 359 (*val () = Print.prefaces "New one"
adamc@800 360 [("f", Print.PD.string (Int.toString f)),
adamc@800 361 ("mns", Print.p_list Print.PD.string
adamc@800 362 (SS.listItems (!mayNotSpec)))]*)
adamc@800 363
adamc@818 364 (*val () = Print.prefaces ("Yes(" ^ name ^ ")")
adamc@818 365 [("fxs'",
adamc@818 366 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')]*)
adamc@818 367
adamc@1079 368 fun subBody (body, typ, fxs') =
adamc@1079 369 case (#1 body, #1 typ, fxs') of
adamc@488 370 (_, _, []) => SOME (body, typ)
adamc@1079 371 | (EAbs (_, _, _, body'), TFun (_, typ'), x :: fxs'') =>
adamc@488 372 let
adamc@1079 373 val body'' = E.subExpInExp (0, x) body'
adamc@488 374 in
adamc@488 375 subBody (body'',
adamc@488 376 typ',
adamc@1079 377 fxs'')
adamc@488 378 end
adamc@488 379 | _ => NONE
adamc@488 380 in
adamc@1079 381 case subBody (body, typ, fxs') of
adamc@1080 382 NONE => default ()
adamc@488 383 | SOME (body', typ') =>
adamc@488 384 let
adamc@488 385 val f' = #maxName st
adamc@488 386 val args = KM.insert (args, fxs', f')
adamc@488 387 val funcs = IM.insert (#funcs st, f, {name = name,
adamc@488 388 args = args,
adamc@488 389 body = body,
adamc@488 390 typ = typ,
adamc@488 391 tag = tag})
adamc@1079 392
adamc@488 393 val st = {
adamc@488 394 maxName = f' + 1,
adamc@488 395 funcs = funcs,
adamc@1079 396 decls = #decls st,
adamc@1080 397 specialized = IS.add (#specialized st, f')
adamc@488 398 }
adamc@487 399
adamc@488 400 (*val () = Print.prefaces "specExp"
adamc@488 401 [("f", CorePrint.p_exp env (ENamed f, loc)),
adamc@488 402 ("f'", CorePrint.p_exp env (ENamed f', loc)),
adamc@488 403 ("xs", Print.p_list (CorePrint.p_exp env) xs),
adamc@488 404 ("fxs'", Print.p_list
adamc@488 405 (CorePrint.p_exp E.empty) fxs'),
adamc@488 406 ("e", CorePrint.p_exp env (e, loc))]*)
adamc@488 407 val (body', typ') = IS.foldl (fn (n, (body', typ')) =>
adamc@488 408 let
adamc@521 409 val (x, xt) = List.nth (env, n)
adamc@488 410 in
adamc@488 411 ((EAbs (x, xt, typ', body'),
adamc@488 412 loc),
adamc@488 413 (TFun (xt, typ'), loc))
adamc@488 414 end)
adamc@488 415 (body', typ') fvs
adamc@800 416 val mns = !mayNotSpec
adamc@1080 417 (*val () = mayNotSpec := SS.add (mns, name)*)
adamc@1080 418 (*val () = Print.preface ("PRE", CorePrint.p_exp CoreEnv.empty body')*)
adamc@1080 419 val (body', st) = exp (env, body', st)
adamc@800 420 val () = mayNotSpec := mns
adamc@482 421
adamc@488 422 val e' = (ENamed f', loc)
adamc@488 423 val e' = IS.foldr (fn (arg, e) => (EApp (e, (ERel arg, loc)), loc))
adamc@488 424 e' fvs
adamc@1079 425 val e' = foldl (fn (arg, e) => (EApp (e, arg), loc))
adamc@488 426 e' xs
adamc@1120 427 (*val () = print ("NEW: " ^ name ^ "__" ^ Int.toString f' ^ "\n");*)
adamc@488 428 (*val () = Print.prefaces "Brand new"
adamc@721 429 [("e'", CorePrint.p_exp CoreEnv.empty e'),
adamc@1080 430 ("e", CorePrint.p_exp CoreEnv.empty e),
adamc@721 431 ("body'", CorePrint.p_exp CoreEnv.empty body')]*)
adamc@488 432 in
adamc@1080 433 (e',
adamc@488 434 {maxName = #maxName st,
adamc@488 435 funcs = #funcs st,
adamc@1079 436 decls = (name, f', typ', body', tag) :: #decls st,
adamc@1079 437 specialized = #specialized st})
adamc@488 438 end
adamc@485 439 end
adamc@488 440 end
adamc@485 441 end
adamc@482 442
adamc@521 443 fun doDecl (d, (st : state, changed)) =
adamc@488 444 let
adamc@521 445 (*val befor = Time.now ()*)
adamc@482 446
adamc@453 447 val funcs = #funcs st
adamc@453 448 val funcs =
adamc@453 449 case #1 d of
adamc@453 450 DValRec vis =>
adamc@453 451 foldl (fn ((x, n, c, e, tag), funcs) =>
adamc@453 452 IM.insert (funcs, n, {name = x,
adamc@453 453 args = KM.empty,
adamc@453 454 body = e,
adamc@453 455 typ = c,
adamc@453 456 tag = tag}))
adamc@453 457 funcs vis
adamc@453 458 | _ => funcs
adamc@453 459
adamc@453 460 val st = {maxName = #maxName st,
adamc@453 461 funcs = funcs,
adamc@1079 462 decls = [],
adamc@1079 463 specialized = #specialized st}
adamc@453 464
adamc@482 465 (*val () = Print.prefaces "decl" [("d", CorePrint.p_decl CoreEnv.empty d)]*)
adamc@521 466
adamc@1080 467 val () = mayNotSpec := SS.empty
adamc@1080 468
adamc@522 469 val (d', st) =
adamc@522 470 if isPoly d then
adamc@522 471 (d, st)
adamc@522 472 else
adamc@1080 473 case #1 d of
adamc@1080 474 DVal (x, n, t, e, s) =>
adamc@1080 475 let
adamc@1080 476 val (e, st) = exp ([], e, st)
adamc@1080 477 in
adamc@1080 478 ((DVal (x, n, t, e, s), #2 d), st)
adamc@1080 479 end
adamc@1080 480 | DValRec vis =>
adamc@1080 481 let
adamc@1120 482 (*val () = Print.preface ("Visiting", Print.p_list (fn vi =>
adamc@1120 483 Print.PD.string (#1 vi ^ "__"
adamc@1120 484 ^ Int.toString
adamc@1120 485 (#2 vi)))
adamc@1120 486 vis)*)
adamc@1120 487
adamc@1080 488 val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e, s), st) =>
adamc@1080 489 let
adamc@1120 490 val () = mayNotSpec := SS.empty
adamc@1080 491 val (e, st) = exp ([], e, st)
adamc@1080 492 in
adamc@1080 493 ((x, n, t, e, s), st)
adamc@1080 494 end) st vis
adamc@1080 495 in
adamc@1080 496 ((DValRec vis, #2 d), st)
adamc@1080 497 end
adamc@1080 498 | DTable (s, n, t, s1, e1, t1, e2, t2) =>
adamc@1080 499 let
adamc@1080 500 val (e1, st) = exp ([], e1, st)
adamc@1080 501 val (e2, st) = exp ([], e2, st)
adamc@1080 502 in
adamc@1080 503 ((DTable (s, n, t, s1, e1, t2, e2, t2), #2 d), st)
adamc@1080 504 end
adamc@1080 505 | DView (x, n, s, e, t) =>
adamc@1080 506 let
adamc@1080 507 val (e, st) = exp ([], e, st)
adamc@1080 508 in
adamc@1080 509 ((DView (x, n, s, e, t), #2 d), st)
adamc@1080 510 end
adamc@1080 511 | DTask (e1, e2) =>
adamc@1080 512 let
adamc@1080 513 val (e1, st) = exp ([], e1, st)
adamc@1080 514 val (e2, st) = exp ([], e2, st)
adamc@1080 515 in
adamc@1080 516 ((DTask (e1, e2), #2 d), st)
adamc@1080 517 end
adamc@1080 518 | _ => (d, st)
adamc@1080 519
adamc@1080 520 val () = mayNotSpec := SS.empty
adamc@521 521
adamc@482 522 (*val () = print "/decl\n"*)
adamc@443 523
adamc@443 524 val funcs = #funcs st
adamc@443 525 val funcs =
adamc@443 526 case #1 d of
adamc@443 527 DVal (x, n, c, e as (EAbs _, _), tag) =>
adamc@443 528 IM.insert (funcs, n, {name = x,
adamc@453 529 args = KM.empty,
adamc@443 530 body = e,
adamc@443 531 typ = c,
adamc@443 532 tag = tag})
adamc@469 533 | DVal (_, n, _, (ENamed n', _), _) =>
adamc@469 534 (case IM.find (funcs, n') of
adamc@469 535 NONE => funcs
adamc@469 536 | SOME v => IM.insert (funcs, n, v))
adamc@443 537 | _ => funcs
adamc@443 538
adamc@453 539 val (changed, ds) =
adamc@443 540 case #decls st of
adamc@453 541 [] => (changed, [d'])
adamc@453 542 | vis =>
adamc@453 543 (true, case d' of
adamc@453 544 (DValRec vis', _) => [(DValRec (vis @ vis'), ErrorMsg.dummySpan)]
adamc@453 545 | _ => [(DValRec vis, ErrorMsg.dummySpan), d'])
adamc@443 546 in
adamc@802 547 (*Print.prefaces "doDecl" [("d", CorePrint.p_decl E.empty d),
adamc@802 548 ("d'", CorePrint.p_decl E.empty d')];*)
adamc@521 549 (ds, ({maxName = #maxName st,
adamc@453 550 funcs = funcs,
adamc@1079 551 decls = [],
adamc@1079 552 specialized = #specialized st}, changed))
adamc@443 553 end
adamc@443 554
adamc@1120 555 (*val () = Print.preface ("RESET", CorePrint.p_file CoreEnv.empty file)*)
adamc@1079 556 val (ds, (st, changed)) = ListUtil.foldlMapConcat doDecl
adamc@521 557 ({maxName = U.File.maxName file + 1,
adamc@1080 558 funcs = funcs,
adamc@1079 559 decls = [],
adamc@1079 560 specialized = specialized},
adamc@488 561 false)
adamc@488 562 file
adamc@443 563 in
adamc@1120 564 (*print ("Changed = " ^ Bool.toString changed ^ "\n");*)
adamc@1080 565 (changed, ds, #funcs st, #specialized st)
adamc@443 566 end
adamc@443 567
adamc@1080 568 fun specializeL (funcs, specialized) file =
adamc@453 569 let
adamc@721 570 val file = ReduceLocal.reduce file
adamc@520 571 (*val file = ReduceLocal.reduce file*)
adamc@1080 572 val (changed, file, funcs, specialized) = specialize' (funcs, specialized) file
adamc@520 573 (*val file = ReduceLocal.reduce file
adamc@520 574 val file = CoreUntangle.untangle file
adamc@488 575 val file = Shake.shake file*)
adamc@453 576 in
adamc@488 577 (*print "Round over\n";*)
adamc@453 578 if changed then
adamc@520 579 let
adamc@721 580 (*val file = ReduceLocal.reduce file*)
adamc@802 581 (*val () = Print.prefaces "Pre-untangle" [("file", CorePrint.p_file CoreEnv.empty file)]*)
adamc@520 582 val file = CoreUntangle.untangle file
adamc@802 583 (*val () = Print.prefaces "Post-untangle" [("file", CorePrint.p_file CoreEnv.empty file)]*)
adamc@520 584 val file = Shake.shake file
adamc@520 585 in
adamc@520 586 (*print "Again!\n";*)
adamc@1080 587 (*Print.prefaces "Again" [("file", CorePrint.p_file CoreEnv.empty file)];*)
adamc@1080 588 specializeL (funcs, specialized) file
adamc@520 589 end
adamc@453 590 else
adamc@453 591 file
adamc@453 592 end
adamc@453 593
adamc@1080 594 val specialize = specializeL (IM.empty, IS.empty)
adamc@1079 595
adamc@443 596 end