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Reduce: Inline let-bound variables whose types involve functions
author Adam Chlipala <adam@chlipala.net>
date Sun, 22 Aug 2010 13:43:46 -0400
parents 56bd4a4f6e66
children 6c2e565adca6
rev   line source
adamc@1272 1 (* Copyright (c) 2008-2010, 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
adam@1289 130 val functionInside = U.Con.exists {kind = fn _ => false,
adam@1289 131 con = fn TFun _ => true
adam@1289 132 | CFfi ("Basis", "transaction") => true
adam@1289 133 | CFfi ("Basis", "eq") => true
adam@1289 134 | CFfi ("Basis", "num") => true
adam@1289 135 | CFfi ("Basis", "ord") => true
adam@1289 136 | CFfi ("Basis", "show") => true
adam@1289 137 | CFfi ("Basis", "read") => true
adam@1289 138 | CFfi ("Basis", "sql_injectable_prim") => true
adam@1289 139 | CFfi ("Basis", "sql_injectable") => true
adam@1289 140 | _ => false}
adam@1289 141
adamc@1080 142 fun specialize' (funcs, specialized) file =
adamc@443 143 let
adamc@488 144 fun bind (env, b) =
adamc@488 145 case b of
adamc@521 146 U.Decl.RelE xt => xt :: env
adamc@521 147 | _ => env
adamc@488 148
adamc@1080 149 fun exp (env, e as (_, loc), st : state) =
adamc@482 150 let
adamc@721 151 (*val () = Print.prefaces "exp" [("e", CorePrint.p_exp CoreEnv.empty
adamc@721 152 (e, ErrorMsg.dummySpan))]*)
adamc@721 153
adamc@1080 154 fun getApp (e, _) =
adamc@482 155 case e of
adamc@488 156 ENamed f => SOME (f, [])
adamc@482 157 | EApp (e1, e2) =>
adamc@1080 158 (case getApp e1 of
adamc@482 159 NONE => NONE
adamc@488 160 | SOME (f, xs) => SOME (f, xs @ [e2]))
adamc@482 161 | _ => NONE
adamc@1080 162
adamc@1080 163 val getApp = fn e => case getApp e of
adamc@1080 164 v as SOME (_, _ :: _) => v
adamc@1080 165 | _ => NONE
adamc@1080 166
adamc@1080 167 fun default () =
adamc@1080 168 case #1 e of
adamc@1080 169 EPrim _ => (e, st)
adamc@1080 170 | ERel _ => (e, st)
adamc@1080 171 | ENamed _ => (e, st)
adamc@1080 172 | ECon (_, _, _, NONE) => (e, st)
adamc@1080 173 | ECon (dk, pc, cs, SOME e) =>
adamc@1080 174 let
adamc@1080 175 val (e, st) = exp (env, e, st)
adamc@1080 176 in
adamc@1080 177 ((ECon (dk, pc, cs, SOME e), loc), st)
adamc@1080 178 end
adamc@1080 179 | EFfi _ => (e, st)
adamc@1080 180 | EFfiApp (m, x, es) =>
adamc@1080 181 let
adamc@1080 182 val (es, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st es
adamc@1080 183 in
adamc@1080 184 ((EFfiApp (m, x, es), loc), st)
adamc@1080 185 end
adamc@1080 186 | EApp (e1, e2) =>
adamc@1080 187 let
adamc@1080 188 val (e1, st) = exp (env, e1, st)
adamc@1080 189 val (e2, st) = exp (env, e2, st)
adamc@1080 190 in
adamc@1080 191 ((EApp (e1, e2), loc), st)
adamc@1080 192 end
adamc@1080 193 | EAbs (x, d, r, e) =>
adamc@1080 194 let
adamc@1080 195 val (e, st) = exp ((x, d) :: env, e, st)
adamc@1080 196 in
adamc@1080 197 ((EAbs (x, d, r, e), loc), st)
adamc@1080 198 end
adamc@1080 199 | ECApp (e, c) =>
adamc@1080 200 let
adamc@1080 201 val (e, st) = exp (env, e, st)
adamc@1080 202 in
adamc@1080 203 ((ECApp (e, c), loc), st)
adamc@1080 204 end
adamc@1185 205 | ECAbs _ => (e, st)
adamc@1120 206 | EKAbs _ => (e, st)
adamc@1080 207 | EKApp (e, k) =>
adamc@1080 208 let
adamc@1080 209 val (e, st) = exp (env, e, st)
adamc@1080 210 in
adamc@1080 211 ((EKApp (e, k), loc), st)
adamc@1080 212 end
adamc@1080 213 | ERecord fs =>
adamc@1080 214 let
adamc@1080 215 val (fs, st) = ListUtil.foldlMap (fn ((c1, e, c2), st) =>
adamc@1080 216 let
adamc@1080 217 val (e, st) = exp (env, e, st)
adamc@1080 218 in
adamc@1080 219 ((c1, e, c2), st)
adamc@1080 220 end) st fs
adamc@1080 221 in
adamc@1080 222 ((ERecord fs, loc), st)
adamc@1080 223 end
adamc@1080 224 | EField (e, c, cs) =>
adamc@1080 225 let
adamc@1080 226 val (e, st) = exp (env, e, st)
adamc@1080 227 in
adamc@1080 228 ((EField (e, c, cs), loc), st)
adamc@1080 229 end
adamc@1080 230 | EConcat (e1, c1, e2, c2) =>
adamc@1080 231 let
adamc@1080 232 val (e1, st) = exp (env, e1, st)
adamc@1080 233 val (e2, st) = exp (env, e2, st)
adamc@1080 234 in
adamc@1080 235 ((EConcat (e1, c1, e2, c2), loc), st)
adamc@1080 236 end
adamc@1080 237 | ECut (e, c, cs) =>
adamc@1080 238 let
adamc@1080 239 val (e, st) = exp (env, e, st)
adamc@1080 240 in
adamc@1080 241 ((ECut (e, c, cs), loc), st)
adamc@1080 242 end
adamc@1080 243 | ECutMulti (e, c, cs) =>
adamc@1080 244 let
adamc@1080 245 val (e, st) = exp (env, e, st)
adamc@1080 246 in
adamc@1080 247 ((ECutMulti (e, c, cs), loc), st)
adamc@1080 248 end
adamc@1080 249
adamc@1080 250 | ECase (e, pes, cs) =>
adamc@1080 251 let
adamc@1080 252 val (e, st) = exp (env, e, st)
adamc@1080 253 val (pes, st) = ListUtil.foldlMap (fn ((p, e), st) =>
adamc@1080 254 let
adamc@1080 255 val (e, st) = exp (E.patBindsL p @ env, e, st)
adamc@1080 256 in
adamc@1080 257 ((p, e), st)
adamc@1080 258 end) st pes
adamc@1080 259 in
adamc@1080 260 ((ECase (e, pes, cs), loc), st)
adamc@1080 261 end
adamc@1080 262
adamc@1080 263 | EWrite e =>
adamc@1080 264 let
adamc@1080 265 val (e, st) = exp (env, e, st)
adamc@1080 266 in
adamc@1080 267 ((EWrite e, loc), st)
adamc@1080 268 end
adamc@1080 269 | EClosure (n, es) =>
adamc@1080 270 let
adamc@1080 271 val (es, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st es
adamc@1080 272 in
adamc@1080 273 ((EClosure (n, es), loc), st)
adamc@1080 274 end
adamc@1080 275 | ELet (x, t, e1, e2) =>
adamc@1080 276 let
adamc@1080 277 val (e1, st) = exp (env, e1, st)
adamc@1080 278 val (e2, st) = exp ((x, t) :: env, e2, st)
adamc@1080 279 in
adamc@1080 280 ((ELet (x, t, e1, e2), loc), st)
adamc@1080 281 end
adamc@1080 282 | EServerCall (n, es, t) =>
adamc@1080 283 let
adamc@1080 284 val (es, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st es
adamc@1080 285 in
adamc@1080 286 ((EServerCall (n, es, t), loc), st)
adamc@1080 287 end
adamc@482 288 in
adamc@482 289 case getApp e of
adamc@1080 290 NONE => default ()
adamc@488 291 | SOME (f, xs) =>
adamc@485 292 case IM.find (#funcs st, f) of
adamc@1272 293 NONE => ((*print ("No find: " ^ Int.toString f ^ "\n");*) default ())
adamc@485 294 | SOME {name, args, body, typ, tag} =>
adamc@488 295 let
adamc@1080 296 val (xs, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st xs
adamc@1080 297
adamc@721 298 (*val () = Print.prefaces "Consider" [("e", CorePrint.p_exp CoreEnv.empty
adamc@721 299 (e, ErrorMsg.dummySpan))]*)
adamc@721 300
adamc@488 301 val loc = ErrorMsg.dummySpan
adamc@488 302
adamc@1080 303 fun findSplit av (xs, typ, fxs, fvs, fin) =
adamc@488 304 case (#1 typ, xs) of
adamc@488 305 (TFun (dom, ran), e :: xs') =>
adamc@1078 306 let
adamc@1079 307 val av = case #1 e of
adamc@1079 308 ERel _ => av
adamc@1079 309 | _ => false
adamc@1078 310 in
adamc@1079 311 if functionInside dom orelse (av andalso case #1 e of
adamc@1079 312 ERel _ => true
adamc@1079 313 | _ => false) then
adamc@1079 314 findSplit av (xs',
adamc@1079 315 ran,
adamc@1079 316 e :: fxs,
adamc@1080 317 IS.union (fvs, freeVars e),
adamc@1080 318 fin orelse functionInside dom)
adamc@1078 319 else
adamc@1080 320 (rev fxs, xs, fvs, fin)
adamc@1078 321 end
adamc@1080 322 | _ => (rev fxs, xs, fvs, fin)
adamc@488 323
adamc@1080 324 val (fxs, xs, fvs, fin) = findSplit true (xs, typ, [], IS.empty, false)
adamc@1079 325
adamc@1079 326 val fxs' = map (squish (IS.listItems fvs)) fxs
adamc@488 327 in
adamc@800 328 (*Print.preface ("fxs'", Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs');*)
adamc@1080 329 if not fin
adamc@1080 330 orelse List.all (fn (ERel _, _) => true
adamc@1080 331 | _ => false) fxs'
adamc@1079 332 orelse (IS.numItems fvs >= length fxs
adamc@1079 333 andalso IS.exists (fn n => functionInside (#2 (List.nth (env, n)))) fvs) then
adamc@1083 334 ((*Print.prefaces "No" [("name", Print.PD.string name),
adamc@1120 335 ("f", Print.PD.string (Int.toString f)),
adamc@1083 336 ("fxs'",
adamc@1083 337 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*)
adamc@1083 338 default ())
adamc@488 339 else
adamc@1079 340 case (KM.find (args, fxs'),
adamc@1083 341 SS.member (!mayNotSpec, name) (*orelse IS.member (#specialized st, f)*)) of
adamc@800 342 (SOME f', _) =>
adamc@485 343 let
adamc@488 344 val e = (ENamed f', loc)
adamc@488 345 val e = IS.foldr (fn (arg, e) => (EApp (e, (ERel arg, loc)), loc))
adamc@488 346 e fvs
adamc@1079 347 val e = foldl (fn (arg, e) => (EApp (e, arg), loc))
adamc@488 348 e xs
adamc@488 349 in
adamc@488 350 (*Print.prefaces "Brand new (reuse)"
adamc@721 351 [("e'", CorePrint.p_exp CoreEnv.empty e)];*)
adamc@1080 352 (e, st)
adamc@488 353 end
adamc@1083 354 | (_, true) => ((*Print.prefaces ("No!(" ^ name ^ ")")
adamc@818 355 [("fxs'",
adamc@818 356 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*)
adamc@1080 357 default ())
adamc@800 358 | (NONE, false) =>
adamc@488 359 let
adamc@800 360 (*val () = Print.prefaces "New one"
adamc@800 361 [("f", Print.PD.string (Int.toString f)),
adamc@800 362 ("mns", Print.p_list Print.PD.string
adamc@800 363 (SS.listItems (!mayNotSpec)))]*)
adamc@800 364
adamc@818 365 (*val () = Print.prefaces ("Yes(" ^ name ^ ")")
adamc@818 366 [("fxs'",
adamc@818 367 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')]*)
adamc@818 368
adamc@1079 369 fun subBody (body, typ, fxs') =
adamc@1079 370 case (#1 body, #1 typ, fxs') of
adamc@488 371 (_, _, []) => SOME (body, typ)
adamc@1079 372 | (EAbs (_, _, _, body'), TFun (_, typ'), x :: fxs'') =>
adamc@488 373 let
adamc@1079 374 val body'' = E.subExpInExp (0, x) body'
adamc@488 375 in
adamc@488 376 subBody (body'',
adamc@488 377 typ',
adamc@1079 378 fxs'')
adamc@488 379 end
adamc@488 380 | _ => NONE
adamc@488 381 in
adamc@1079 382 case subBody (body, typ, fxs') of
adamc@1080 383 NONE => default ()
adamc@488 384 | SOME (body', typ') =>
adamc@488 385 let
adamc@488 386 val f' = #maxName st
adamc@488 387 val args = KM.insert (args, fxs', f')
adamc@488 388 val funcs = IM.insert (#funcs st, f, {name = name,
adamc@488 389 args = args,
adamc@488 390 body = body,
adamc@488 391 typ = typ,
adamc@488 392 tag = tag})
adamc@1079 393
adamc@488 394 val st = {
adamc@488 395 maxName = f' + 1,
adamc@488 396 funcs = funcs,
adamc@1079 397 decls = #decls st,
adamc@1080 398 specialized = IS.add (#specialized st, f')
adamc@488 399 }
adamc@487 400
adamc@488 401 (*val () = Print.prefaces "specExp"
adamc@488 402 [("f", CorePrint.p_exp env (ENamed f, loc)),
adamc@488 403 ("f'", CorePrint.p_exp env (ENamed f', loc)),
adamc@488 404 ("xs", Print.p_list (CorePrint.p_exp env) xs),
adamc@488 405 ("fxs'", Print.p_list
adamc@488 406 (CorePrint.p_exp E.empty) fxs'),
adamc@488 407 ("e", CorePrint.p_exp env (e, loc))]*)
adamc@488 408 val (body', typ') = IS.foldl (fn (n, (body', typ')) =>
adamc@488 409 let
adamc@521 410 val (x, xt) = List.nth (env, n)
adamc@488 411 in
adamc@488 412 ((EAbs (x, xt, typ', body'),
adamc@488 413 loc),
adamc@488 414 (TFun (xt, typ'), loc))
adamc@488 415 end)
adamc@488 416 (body', typ') fvs
adamc@800 417 val mns = !mayNotSpec
adamc@1080 418 (*val () = mayNotSpec := SS.add (mns, name)*)
adamc@1272 419 (*val () = print ("NEW: " ^ name ^ "__" ^ Int.toString f' ^ "\n");*)
adamc@1272 420 val body' = ReduceLocal.reduceExp body'
adamc@1080 421 (*val () = Print.preface ("PRE", CorePrint.p_exp CoreEnv.empty body')*)
adamc@1080 422 val (body', st) = exp (env, body', st)
adamc@800 423 val () = mayNotSpec := mns
adamc@482 424
adamc@488 425 val e' = (ENamed f', loc)
adamc@488 426 val e' = IS.foldr (fn (arg, e) => (EApp (e, (ERel arg, loc)), loc))
adamc@488 427 e' fvs
adamc@1079 428 val e' = foldl (fn (arg, e) => (EApp (e, arg), loc))
adamc@488 429 e' xs
adamc@488 430 (*val () = Print.prefaces "Brand new"
adamc@721 431 [("e'", CorePrint.p_exp CoreEnv.empty e'),
adamc@1080 432 ("e", CorePrint.p_exp CoreEnv.empty e),
adamc@721 433 ("body'", CorePrint.p_exp CoreEnv.empty body')]*)
adamc@488 434 in
adamc@1080 435 (e',
adamc@488 436 {maxName = #maxName st,
adamc@488 437 funcs = #funcs st,
adamc@1079 438 decls = (name, f', typ', body', tag) :: #decls st,
adamc@1079 439 specialized = #specialized st})
adamc@488 440 end
adamc@485 441 end
adamc@488 442 end
adamc@485 443 end
adamc@482 444
adamc@521 445 fun doDecl (d, (st : state, changed)) =
adamc@488 446 let
adamc@521 447 (*val befor = Time.now ()*)
adamc@482 448
adamc@453 449 val funcs = #funcs st
adamc@453 450 val funcs =
adamc@453 451 case #1 d of
adamc@453 452 DValRec vis =>
adamc@453 453 foldl (fn ((x, n, c, e, tag), funcs) =>
adamc@453 454 IM.insert (funcs, n, {name = x,
adamc@453 455 args = KM.empty,
adamc@453 456 body = e,
adamc@453 457 typ = c,
adamc@453 458 tag = tag}))
adamc@453 459 funcs vis
adamc@453 460 | _ => funcs
adamc@453 461
adamc@453 462 val st = {maxName = #maxName st,
adamc@453 463 funcs = funcs,
adamc@1079 464 decls = [],
adamc@1079 465 specialized = #specialized st}
adamc@453 466
adamc@482 467 (*val () = Print.prefaces "decl" [("d", CorePrint.p_decl CoreEnv.empty d)]*)
adamc@521 468
adamc@1080 469 val () = mayNotSpec := SS.empty
adamc@1080 470
adamc@522 471 val (d', st) =
adamc@522 472 if isPoly d then
adamc@522 473 (d, st)
adamc@522 474 else
adamc@1080 475 case #1 d of
adamc@1080 476 DVal (x, n, t, e, s) =>
adamc@1080 477 let
adamc@1080 478 val (e, st) = exp ([], e, st)
adamc@1080 479 in
adamc@1080 480 ((DVal (x, n, t, e, s), #2 d), st)
adamc@1080 481 end
adamc@1080 482 | DValRec vis =>
adamc@1080 483 let
adamc@1120 484 (*val () = Print.preface ("Visiting", Print.p_list (fn vi =>
adamc@1120 485 Print.PD.string (#1 vi ^ "__"
adamc@1120 486 ^ Int.toString
adamc@1120 487 (#2 vi)))
adamc@1120 488 vis)*)
adamc@1120 489
adamc@1080 490 val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e, s), st) =>
adamc@1080 491 let
adamc@1120 492 val () = mayNotSpec := SS.empty
adamc@1080 493 val (e, st) = exp ([], e, st)
adamc@1080 494 in
adamc@1080 495 ((x, n, t, e, s), st)
adamc@1080 496 end) st vis
adamc@1080 497 in
adamc@1080 498 ((DValRec vis, #2 d), st)
adamc@1080 499 end
adamc@1080 500 | DTable (s, n, t, s1, e1, t1, e2, t2) =>
adamc@1080 501 let
adamc@1080 502 val (e1, st) = exp ([], e1, st)
adamc@1080 503 val (e2, st) = exp ([], e2, st)
adamc@1080 504 in
adamc@1080 505 ((DTable (s, n, t, s1, e1, t2, e2, t2), #2 d), st)
adamc@1080 506 end
adamc@1080 507 | DView (x, n, s, e, t) =>
adamc@1080 508 let
adamc@1080 509 val (e, st) = exp ([], e, st)
adamc@1080 510 in
adamc@1080 511 ((DView (x, n, s, e, t), #2 d), st)
adamc@1080 512 end
adamc@1080 513 | DTask (e1, e2) =>
adamc@1080 514 let
adamc@1080 515 val (e1, st) = exp ([], e1, st)
adamc@1080 516 val (e2, st) = exp ([], e2, st)
adamc@1080 517 in
adamc@1080 518 ((DTask (e1, e2), #2 d), st)
adamc@1080 519 end
adamc@1080 520 | _ => (d, st)
adamc@1080 521
adamc@1080 522 val () = mayNotSpec := SS.empty
adamc@521 523
adamc@482 524 (*val () = print "/decl\n"*)
adamc@443 525
adamc@443 526 val funcs = #funcs st
adamc@443 527 val funcs =
adamc@443 528 case #1 d of
adamc@443 529 DVal (x, n, c, e as (EAbs _, _), tag) =>
adamc@443 530 IM.insert (funcs, n, {name = x,
adamc@453 531 args = KM.empty,
adamc@443 532 body = e,
adamc@443 533 typ = c,
adamc@443 534 tag = tag})
adamc@469 535 | DVal (_, n, _, (ENamed n', _), _) =>
adamc@469 536 (case IM.find (funcs, n') of
adamc@469 537 NONE => funcs
adamc@469 538 | SOME v => IM.insert (funcs, n, v))
adamc@443 539 | _ => funcs
adamc@443 540
adamc@453 541 val (changed, ds) =
adamc@443 542 case #decls st of
adamc@453 543 [] => (changed, [d'])
adamc@453 544 | vis =>
adamc@453 545 (true, case d' of
adamc@453 546 (DValRec vis', _) => [(DValRec (vis @ vis'), ErrorMsg.dummySpan)]
adamc@453 547 | _ => [(DValRec vis, ErrorMsg.dummySpan), d'])
adamc@443 548 in
adamc@802 549 (*Print.prefaces "doDecl" [("d", CorePrint.p_decl E.empty d),
adamc@802 550 ("d'", CorePrint.p_decl E.empty d')];*)
adamc@521 551 (ds, ({maxName = #maxName st,
adamc@453 552 funcs = funcs,
adamc@1079 553 decls = [],
adamc@1079 554 specialized = #specialized st}, changed))
adamc@443 555 end
adamc@443 556
adamc@1120 557 (*val () = Print.preface ("RESET", CorePrint.p_file CoreEnv.empty file)*)
adamc@1079 558 val (ds, (st, changed)) = ListUtil.foldlMapConcat doDecl
adamc@521 559 ({maxName = U.File.maxName file + 1,
adamc@1080 560 funcs = funcs,
adamc@1079 561 decls = [],
adamc@1079 562 specialized = specialized},
adamc@488 563 false)
adamc@488 564 file
adamc@443 565 in
adamc@1120 566 (*print ("Changed = " ^ Bool.toString changed ^ "\n");*)
adamc@1080 567 (changed, ds, #funcs st, #specialized st)
adamc@443 568 end
adamc@443 569
adamc@1080 570 fun specializeL (funcs, specialized) file =
adamc@453 571 let
adamc@721 572 val file = ReduceLocal.reduce file
adamc@520 573 (*val file = ReduceLocal.reduce file*)
adamc@1080 574 val (changed, file, funcs, specialized) = specialize' (funcs, specialized) file
adamc@520 575 (*val file = ReduceLocal.reduce file
adamc@520 576 val file = CoreUntangle.untangle file
adamc@488 577 val file = Shake.shake file*)
adamc@453 578 in
adamc@488 579 (*print "Round over\n";*)
adamc@453 580 if changed then
adamc@520 581 let
adamc@721 582 (*val file = ReduceLocal.reduce file*)
adamc@802 583 (*val () = Print.prefaces "Pre-untangle" [("file", CorePrint.p_file CoreEnv.empty file)]*)
adamc@520 584 val file = CoreUntangle.untangle file
adamc@802 585 (*val () = Print.prefaces "Post-untangle" [("file", CorePrint.p_file CoreEnv.empty file)]*)
adamc@520 586 val file = Shake.shake file
adamc@520 587 in
adamc@520 588 (*print "Again!\n";*)
adamc@1080 589 (*Print.prefaces "Again" [("file", CorePrint.p_file CoreEnv.empty file)];*)
adamc@1080 590 specializeL (funcs, specialized) file
adamc@520 591 end
adamc@453 592 else
adamc@453 593 file
adamc@453 594 end
adamc@453 595
adamc@1080 596 val specialize = specializeL (IM.empty, IS.empty)
adamc@1079 597
adamc@443 598 end