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annotate src/especialize.sml @ 1355:ccf1d445b794

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Hopeful fix to stop Especialize infinite looping
author Adam Chlipala <adam@chlipala.net>
date Tue, 21 Dec 2010 13:57:12 -0500
parents 6c2e565adca6
children fd34210bc3e5
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
adam@1314 38 type ord_key = con list * exp list
adam@1314 39 fun compare ((cs1, es1), (cs2, es2)) = Order.join (Order.joinL U.Con.compare (cs1, cs2),
adam@1314 40 fn () => Order.joinL U.Exp.compare (es1, es2))
adamc@443 41 end
adamc@443 42
adamc@453 43 structure KM = BinaryMapFn(K)
adamc@443 44 structure IM = IntBinaryMap
adamc@482 45 structure IS = IntBinarySet
adamc@443 46
adamc@626 47 val freeVars = U.Exp.foldB {kind = fn (_, _, xs) => xs,
adamc@488 48 con = fn (_, _, xs) => xs,
adamc@488 49 exp = fn (bound, e, xs) =>
adamc@488 50 case e of
adamc@488 51 ERel x =>
adamc@488 52 if x >= bound then
adamc@488 53 IS.add (xs, x - bound)
adamc@488 54 else
adamc@488 55 xs
adamc@488 56 | _ => xs,
adamc@488 57 bind = fn (bound, b) =>
adamc@488 58 case b of
adamc@488 59 U.Exp.RelE _ => bound + 1
adamc@488 60 | _ => bound}
adamc@488 61 0 IS.empty
adamc@479 62
adamc@1120 63 fun isPolyT (t, _) =
adamc@1120 64 case t of
adamc@1120 65 TFun (_, ran) => isPolyT ran
adamc@1120 66 | TCFun _ => true
adamc@1120 67 | TKFun _ => true
adamc@1120 68 | _ => false
adamc@1120 69
adamc@1120 70 fun isPoly (d, _) =
adamc@1120 71 case d of
adamc@1120 72 DVal (_, _, t, _, _) => isPolyT t
adamc@1120 73 | DValRec vis => List.exists (isPolyT o #3) vis
adamc@1120 74 | _ => false
adamc@522 75
adamc@488 76 fun positionOf (v : int, ls) =
adamc@488 77 let
adamc@488 78 fun pof (pos, ls) =
adamc@488 79 case ls of
adamc@488 80 [] => raise Fail "Defunc.positionOf"
adamc@488 81 | v' :: ls' =>
adamc@488 82 if v = v' then
adamc@488 83 pos
adamc@488 84 else
adamc@488 85 pof (pos + 1, ls')
adamc@488 86 in
adamc@488 87 pof (0, ls)
adamc@488 88 end
adamc@488 89
adamc@1079 90 fun squish fvs =
adamc@626 91 U.Exp.mapB {kind = fn _ => fn k => k,
adamc@488 92 con = fn _ => fn c => c,
adamc@488 93 exp = fn bound => fn e =>
adamc@479 94 case e of
adamc@488 95 ERel x =>
adamc@488 96 if x >= bound then
adamc@1079 97 ERel (positionOf (x - bound, fvs) + bound)
adamc@488 98 else
adamc@488 99 e
adamc@488 100 | _ => e,
adamc@488 101 bind = fn (bound, b) =>
adamc@488 102 case b of
adamc@488 103 U.Exp.RelE _ => bound + 1
adamc@488 104 | _ => bound}
adamc@488 105 0
adamc@453 106
adamc@443 107 type func = {
adamc@443 108 name : string,
adamc@453 109 args : int KM.map,
adamc@443 110 body : exp,
adamc@443 111 typ : con,
adamc@443 112 tag : string
adamc@443 113 }
adamc@443 114
adamc@443 115 type state = {
adamc@443 116 maxName : int,
adamc@443 117 funcs : func IM.map,
adamc@1079 118 decls : (string * int * con * exp * string) list,
adamc@1080 119 specialized : IS.set
adamc@443 120 }
adamc@443 121
adamc@488 122 fun default (_, x, st) = (x, st)
adamc@443 123
adamc@800 124 structure SS = BinarySetFn(struct
adamc@800 125 type ord_key = string
adamc@800 126 val compare = String.compare
adamc@800 127 end)
adamc@800 128
adamc@800 129 val mayNotSpec = ref SS.empty
adamc@800 130
adam@1289 131 val functionInside = U.Con.exists {kind = fn _ => false,
adam@1289 132 con = fn TFun _ => true
adam@1289 133 | CFfi ("Basis", "transaction") => true
adam@1289 134 | CFfi ("Basis", "eq") => true
adam@1289 135 | CFfi ("Basis", "num") => true
adam@1289 136 | CFfi ("Basis", "ord") => true
adam@1289 137 | CFfi ("Basis", "show") => true
adam@1289 138 | CFfi ("Basis", "read") => true
adam@1289 139 | CFfi ("Basis", "sql_injectable_prim") => true
adam@1289 140 | CFfi ("Basis", "sql_injectable") => true
adam@1289 141 | _ => false}
adam@1289 142
adamc@1080 143 fun specialize' (funcs, specialized) file =
adamc@443 144 let
adamc@488 145 fun bind (env, b) =
adamc@488 146 case b of
adamc@521 147 U.Decl.RelE xt => xt :: env
adamc@521 148 | _ => env
adamc@488 149
adamc@1080 150 fun exp (env, e as (_, loc), st : state) =
adamc@482 151 let
adamc@721 152 (*val () = Print.prefaces "exp" [("e", CorePrint.p_exp CoreEnv.empty
adamc@721 153 (e, ErrorMsg.dummySpan))]*)
adamc@721 154
adamc@1080 155 fun getApp (e, _) =
adamc@482 156 case e of
adamc@488 157 ENamed f => SOME (f, [])
adamc@482 158 | EApp (e1, e2) =>
adamc@1080 159 (case getApp e1 of
adamc@482 160 NONE => NONE
adamc@488 161 | SOME (f, xs) => SOME (f, xs @ [e2]))
adamc@482 162 | _ => NONE
adamc@1080 163
adamc@1080 164 val getApp = fn e => case getApp e of
adamc@1080 165 v as SOME (_, _ :: _) => v
adamc@1080 166 | _ => NONE
adamc@1080 167
adamc@1080 168 fun default () =
adamc@1080 169 case #1 e of
adamc@1080 170 EPrim _ => (e, st)
adamc@1080 171 | ERel _ => (e, st)
adamc@1080 172 | ENamed _ => (e, st)
adamc@1080 173 | ECon (_, _, _, NONE) => (e, st)
adamc@1080 174 | ECon (dk, pc, cs, SOME e) =>
adamc@1080 175 let
adamc@1080 176 val (e, st) = exp (env, e, st)
adamc@1080 177 in
adamc@1080 178 ((ECon (dk, pc, cs, SOME e), loc), st)
adamc@1080 179 end
adamc@1080 180 | EFfi _ => (e, st)
adamc@1080 181 | EFfiApp (m, x, es) =>
adamc@1080 182 let
adamc@1080 183 val (es, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st es
adamc@1080 184 in
adamc@1080 185 ((EFfiApp (m, x, es), loc), st)
adamc@1080 186 end
adamc@1080 187 | EApp (e1, e2) =>
adamc@1080 188 let
adamc@1080 189 val (e1, st) = exp (env, e1, st)
adamc@1080 190 val (e2, st) = exp (env, e2, st)
adamc@1080 191 in
adamc@1080 192 ((EApp (e1, e2), loc), st)
adamc@1080 193 end
adamc@1080 194 | EAbs (x, d, r, e) =>
adamc@1080 195 let
adamc@1080 196 val (e, st) = exp ((x, d) :: env, e, st)
adamc@1080 197 in
adamc@1080 198 ((EAbs (x, d, r, e), loc), st)
adamc@1080 199 end
adamc@1080 200 | ECApp (e, c) =>
adamc@1080 201 let
adamc@1080 202 val (e, st) = exp (env, e, st)
adamc@1080 203 in
adamc@1080 204 ((ECApp (e, c), loc), st)
adamc@1080 205 end
adamc@1185 206 | ECAbs _ => (e, st)
adamc@1120 207 | EKAbs _ => (e, st)
adamc@1080 208 | EKApp (e, k) =>
adamc@1080 209 let
adamc@1080 210 val (e, st) = exp (env, e, st)
adamc@1080 211 in
adamc@1080 212 ((EKApp (e, k), loc), st)
adamc@1080 213 end
adamc@1080 214 | ERecord fs =>
adamc@1080 215 let
adamc@1080 216 val (fs, st) = ListUtil.foldlMap (fn ((c1, e, c2), st) =>
adamc@1080 217 let
adamc@1080 218 val (e, st) = exp (env, e, st)
adamc@1080 219 in
adamc@1080 220 ((c1, e, c2), st)
adamc@1080 221 end) st fs
adamc@1080 222 in
adamc@1080 223 ((ERecord fs, loc), st)
adamc@1080 224 end
adamc@1080 225 | EField (e, c, cs) =>
adamc@1080 226 let
adamc@1080 227 val (e, st) = exp (env, e, st)
adamc@1080 228 in
adamc@1080 229 ((EField (e, c, cs), loc), st)
adamc@1080 230 end
adamc@1080 231 | EConcat (e1, c1, e2, c2) =>
adamc@1080 232 let
adamc@1080 233 val (e1, st) = exp (env, e1, st)
adamc@1080 234 val (e2, st) = exp (env, e2, st)
adamc@1080 235 in
adamc@1080 236 ((EConcat (e1, c1, e2, c2), loc), st)
adamc@1080 237 end
adamc@1080 238 | ECut (e, c, cs) =>
adamc@1080 239 let
adamc@1080 240 val (e, st) = exp (env, e, st)
adamc@1080 241 in
adamc@1080 242 ((ECut (e, c, cs), loc), st)
adamc@1080 243 end
adamc@1080 244 | ECutMulti (e, c, cs) =>
adamc@1080 245 let
adamc@1080 246 val (e, st) = exp (env, e, st)
adamc@1080 247 in
adamc@1080 248 ((ECutMulti (e, c, cs), loc), st)
adamc@1080 249 end
adamc@1080 250
adamc@1080 251 | ECase (e, pes, cs) =>
adamc@1080 252 let
adamc@1080 253 val (e, st) = exp (env, e, st)
adamc@1080 254 val (pes, st) = ListUtil.foldlMap (fn ((p, e), st) =>
adamc@1080 255 let
adamc@1080 256 val (e, st) = exp (E.patBindsL p @ env, e, st)
adamc@1080 257 in
adamc@1080 258 ((p, e), st)
adamc@1080 259 end) st pes
adamc@1080 260 in
adamc@1080 261 ((ECase (e, pes, cs), loc), st)
adamc@1080 262 end
adamc@1080 263
adamc@1080 264 | EWrite e =>
adamc@1080 265 let
adamc@1080 266 val (e, st) = exp (env, e, st)
adamc@1080 267 in
adamc@1080 268 ((EWrite e, loc), st)
adamc@1080 269 end
adamc@1080 270 | EClosure (n, es) =>
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 ((EClosure (n, es), loc), st)
adamc@1080 275 end
adamc@1080 276 | ELet (x, t, e1, e2) =>
adamc@1080 277 let
adamc@1080 278 val (e1, st) = exp (env, e1, st)
adamc@1080 279 val (e2, st) = exp ((x, t) :: env, e2, st)
adamc@1080 280 in
adamc@1080 281 ((ELet (x, t, e1, e2), loc), st)
adamc@1080 282 end
adamc@1080 283 | EServerCall (n, es, t) =>
adamc@1080 284 let
adamc@1080 285 val (es, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st es
adamc@1080 286 in
adamc@1080 287 ((EServerCall (n, es, t), loc), st)
adamc@1080 288 end
adamc@482 289 in
adamc@482 290 case getApp e of
adamc@1080 291 NONE => default ()
adamc@488 292 | SOME (f, xs) =>
adamc@485 293 case IM.find (#funcs st, f) of
adamc@1272 294 NONE => ((*print ("No find: " ^ Int.toString f ^ "\n");*) default ())
adamc@485 295 | SOME {name, args, body, typ, tag} =>
adamc@488 296 let
adamc@1080 297 val (xs, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st xs
adamc@1080 298
adamc@721 299 (*val () = Print.prefaces "Consider" [("e", CorePrint.p_exp CoreEnv.empty
adamc@721 300 (e, ErrorMsg.dummySpan))]*)
adamc@721 301
adamc@488 302 val loc = ErrorMsg.dummySpan
adamc@488 303
adamc@1080 304 fun findSplit av (xs, typ, fxs, fvs, fin) =
adamc@488 305 case (#1 typ, xs) of
adamc@488 306 (TFun (dom, ran), e :: xs') =>
adamc@1078 307 let
adamc@1079 308 val av = case #1 e of
adamc@1079 309 ERel _ => av
adamc@1079 310 | _ => false
adamc@1078 311 in
adamc@1079 312 if functionInside dom orelse (av andalso case #1 e of
adamc@1079 313 ERel _ => true
adamc@1079 314 | _ => false) then
adamc@1079 315 findSplit av (xs',
adamc@1079 316 ran,
adamc@1079 317 e :: fxs,
adamc@1080 318 IS.union (fvs, freeVars e),
adamc@1080 319 fin orelse functionInside dom)
adamc@1078 320 else
adamc@1080 321 (rev fxs, xs, fvs, fin)
adamc@1078 322 end
adamc@1080 323 | _ => (rev fxs, xs, fvs, fin)
adamc@488 324
adamc@1080 325 val (fxs, xs, fvs, fin) = findSplit true (xs, typ, [], IS.empty, false)
adamc@1079 326
adam@1355 327 fun valueish (e, _) =
adam@1355 328 case e of
adam@1355 329 EPrim _ => true
adam@1355 330 | ERel _ => true
adam@1355 331 | ENamed _ => true
adam@1355 332 | ECon (_, _, _, NONE) => true
adam@1355 333 | ECon (_, _, _, SOME e) => valueish e
adam@1355 334 | EFfi (_, _) => true
adam@1355 335 | EAbs _ => true
adam@1355 336 | ECAbs _ => true
adam@1355 337 | EKAbs _ => true
adam@1355 338 | ECApp (e, _) => valueish e
adam@1355 339 | EKApp (e, _) => valueish e
adam@1355 340 | ERecord xes => List.all (valueish o #2) xes
adam@1355 341 | _ => false
adam@1355 342
adam@1314 343 val vts = map (fn n => #2 (List.nth (env, n))) (IS.listItems fvs)
adamc@1079 344 val fxs' = map (squish (IS.listItems fvs)) fxs
adamc@488 345 in
adam@1355 346 (*Print.prefaces "Func" [("name", Print.PD.string name),
adam@1355 347 ("e", CorePrint.p_exp CoreEnv.empty e),
adam@1355 348 ("fxs'", Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*)
adamc@1080 349 if not fin
adamc@1080 350 orelse List.all (fn (ERel _, _) => true
adamc@1080 351 | _ => false) fxs'
adam@1355 352 orelse List.exists (not o valueish) fxs'
adamc@1079 353 orelse (IS.numItems fvs >= length fxs
adamc@1079 354 andalso IS.exists (fn n => functionInside (#2 (List.nth (env, n)))) fvs) then
adamc@1083 355 ((*Print.prefaces "No" [("name", Print.PD.string name),
adamc@1120 356 ("f", Print.PD.string (Int.toString f)),
adamc@1083 357 ("fxs'",
adamc@1083 358 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*)
adamc@1083 359 default ())
adamc@488 360 else
adam@1314 361 case (KM.find (args, (vts, fxs')),
adamc@1083 362 SS.member (!mayNotSpec, name) (*orelse IS.member (#specialized st, f)*)) of
adamc@800 363 (SOME f', _) =>
adamc@485 364 let
adamc@488 365 val e = (ENamed f', loc)
adamc@488 366 val e = IS.foldr (fn (arg, e) => (EApp (e, (ERel arg, loc)), loc))
adamc@488 367 e fvs
adamc@1079 368 val e = foldl (fn (arg, e) => (EApp (e, arg), loc))
adamc@488 369 e xs
adamc@488 370 in
adamc@488 371 (*Print.prefaces "Brand new (reuse)"
adamc@721 372 [("e'", CorePrint.p_exp CoreEnv.empty e)];*)
adamc@1080 373 (e, st)
adamc@488 374 end
adamc@1083 375 | (_, true) => ((*Print.prefaces ("No!(" ^ name ^ ")")
adamc@818 376 [("fxs'",
adamc@818 377 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*)
adamc@1080 378 default ())
adamc@800 379 | (NONE, false) =>
adamc@488 380 let
adamc@800 381 (*val () = Print.prefaces "New one"
adamc@800 382 [("f", Print.PD.string (Int.toString f)),
adamc@800 383 ("mns", Print.p_list Print.PD.string
adamc@800 384 (SS.listItems (!mayNotSpec)))]*)
adamc@800 385
adamc@818 386 (*val () = Print.prefaces ("Yes(" ^ name ^ ")")
adamc@818 387 [("fxs'",
adamc@818 388 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')]*)
adamc@818 389
adamc@1079 390 fun subBody (body, typ, fxs') =
adamc@1079 391 case (#1 body, #1 typ, fxs') of
adamc@488 392 (_, _, []) => SOME (body, typ)
adamc@1079 393 | (EAbs (_, _, _, body'), TFun (_, typ'), x :: fxs'') =>
adamc@488 394 let
adamc@1079 395 val body'' = E.subExpInExp (0, x) body'
adamc@488 396 in
adamc@488 397 subBody (body'',
adamc@488 398 typ',
adamc@1079 399 fxs'')
adamc@488 400 end
adamc@488 401 | _ => NONE
adamc@488 402 in
adamc@1079 403 case subBody (body, typ, fxs') of
adamc@1080 404 NONE => default ()
adamc@488 405 | SOME (body', typ') =>
adamc@488 406 let
adamc@488 407 val f' = #maxName st
adam@1314 408 val args = KM.insert (args, (vts, fxs'), f')
adamc@488 409 val funcs = IM.insert (#funcs st, f, {name = name,
adamc@488 410 args = args,
adamc@488 411 body = body,
adamc@488 412 typ = typ,
adamc@488 413 tag = tag})
adamc@1079 414
adamc@488 415 val st = {
adamc@488 416 maxName = f' + 1,
adamc@488 417 funcs = funcs,
adamc@1079 418 decls = #decls st,
adamc@1080 419 specialized = IS.add (#specialized st, f')
adamc@488 420 }
adamc@487 421
adamc@488 422 (*val () = Print.prefaces "specExp"
adamc@488 423 [("f", CorePrint.p_exp env (ENamed f, loc)),
adamc@488 424 ("f'", CorePrint.p_exp env (ENamed f', loc)),
adamc@488 425 ("xs", Print.p_list (CorePrint.p_exp env) xs),
adamc@488 426 ("fxs'", Print.p_list
adamc@488 427 (CorePrint.p_exp E.empty) fxs'),
adamc@488 428 ("e", CorePrint.p_exp env (e, loc))]*)
adamc@488 429 val (body', typ') = IS.foldl (fn (n, (body', typ')) =>
adamc@488 430 let
adamc@521 431 val (x, xt) = List.nth (env, n)
adamc@488 432 in
adamc@488 433 ((EAbs (x, xt, typ', body'),
adamc@488 434 loc),
adamc@488 435 (TFun (xt, typ'), loc))
adamc@488 436 end)
adamc@488 437 (body', typ') fvs
adamc@800 438 val mns = !mayNotSpec
adamc@1080 439 (*val () = mayNotSpec := SS.add (mns, name)*)
adamc@1272 440 (*val () = print ("NEW: " ^ name ^ "__" ^ Int.toString f' ^ "\n");*)
adamc@1272 441 val body' = ReduceLocal.reduceExp body'
adamc@1080 442 (*val () = Print.preface ("PRE", CorePrint.p_exp CoreEnv.empty body')*)
adamc@1080 443 val (body', st) = exp (env, body', st)
adamc@800 444 val () = mayNotSpec := mns
adamc@482 445
adamc@488 446 val e' = (ENamed f', loc)
adamc@488 447 val e' = IS.foldr (fn (arg, e) => (EApp (e, (ERel arg, loc)), loc))
adamc@488 448 e' fvs
adamc@1079 449 val e' = foldl (fn (arg, e) => (EApp (e, arg), loc))
adamc@488 450 e' xs
adamc@488 451 (*val () = Print.prefaces "Brand new"
adamc@721 452 [("e'", CorePrint.p_exp CoreEnv.empty e'),
adamc@1080 453 ("e", CorePrint.p_exp CoreEnv.empty e),
adamc@721 454 ("body'", CorePrint.p_exp CoreEnv.empty body')]*)
adamc@488 455 in
adamc@1080 456 (e',
adamc@488 457 {maxName = #maxName st,
adamc@488 458 funcs = #funcs st,
adamc@1079 459 decls = (name, f', typ', body', tag) :: #decls st,
adamc@1079 460 specialized = #specialized st})
adamc@488 461 end
adamc@485 462 end
adamc@488 463 end
adamc@485 464 end
adamc@482 465
adamc@521 466 fun doDecl (d, (st : state, changed)) =
adamc@488 467 let
adamc@521 468 (*val befor = Time.now ()*)
adamc@482 469
adamc@453 470 val funcs = #funcs st
adamc@453 471 val funcs =
adamc@453 472 case #1 d of
adamc@453 473 DValRec vis =>
adamc@453 474 foldl (fn ((x, n, c, e, tag), funcs) =>
adamc@453 475 IM.insert (funcs, n, {name = x,
adamc@453 476 args = KM.empty,
adamc@453 477 body = e,
adamc@453 478 typ = c,
adamc@453 479 tag = tag}))
adamc@453 480 funcs vis
adamc@453 481 | _ => funcs
adamc@453 482
adamc@453 483 val st = {maxName = #maxName st,
adamc@453 484 funcs = funcs,
adamc@1079 485 decls = [],
adamc@1079 486 specialized = #specialized st}
adamc@453 487
adamc@482 488 (*val () = Print.prefaces "decl" [("d", CorePrint.p_decl CoreEnv.empty d)]*)
adamc@521 489
adamc@1080 490 val () = mayNotSpec := SS.empty
adamc@1080 491
adamc@522 492 val (d', st) =
adamc@522 493 if isPoly d then
adamc@522 494 (d, st)
adamc@522 495 else
adamc@1080 496 case #1 d of
adamc@1080 497 DVal (x, n, t, e, s) =>
adamc@1080 498 let
adamc@1080 499 val (e, st) = exp ([], e, st)
adamc@1080 500 in
adamc@1080 501 ((DVal (x, n, t, e, s), #2 d), st)
adamc@1080 502 end
adamc@1080 503 | DValRec vis =>
adamc@1080 504 let
adamc@1120 505 (*val () = Print.preface ("Visiting", Print.p_list (fn vi =>
adamc@1120 506 Print.PD.string (#1 vi ^ "__"
adamc@1120 507 ^ Int.toString
adamc@1120 508 (#2 vi)))
adamc@1120 509 vis)*)
adamc@1120 510
adamc@1080 511 val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e, s), st) =>
adamc@1080 512 let
adamc@1120 513 val () = mayNotSpec := SS.empty
adamc@1080 514 val (e, st) = exp ([], e, st)
adamc@1080 515 in
adamc@1080 516 ((x, n, t, e, s), st)
adamc@1080 517 end) st vis
adamc@1080 518 in
adamc@1080 519 ((DValRec vis, #2 d), st)
adamc@1080 520 end
adamc@1080 521 | DTable (s, n, t, s1, e1, t1, e2, t2) =>
adamc@1080 522 let
adamc@1080 523 val (e1, st) = exp ([], e1, st)
adamc@1080 524 val (e2, st) = exp ([], e2, st)
adamc@1080 525 in
adamc@1080 526 ((DTable (s, n, t, s1, e1, t2, e2, t2), #2 d), st)
adamc@1080 527 end
adamc@1080 528 | DView (x, n, s, e, t) =>
adamc@1080 529 let
adamc@1080 530 val (e, st) = exp ([], e, st)
adamc@1080 531 in
adamc@1080 532 ((DView (x, n, s, e, t), #2 d), st)
adamc@1080 533 end
adamc@1080 534 | DTask (e1, e2) =>
adamc@1080 535 let
adamc@1080 536 val (e1, st) = exp ([], e1, st)
adamc@1080 537 val (e2, st) = exp ([], e2, st)
adamc@1080 538 in
adamc@1080 539 ((DTask (e1, e2), #2 d), st)
adamc@1080 540 end
adamc@1080 541 | _ => (d, st)
adamc@1080 542
adamc@1080 543 val () = mayNotSpec := SS.empty
adamc@521 544
adamc@482 545 (*val () = print "/decl\n"*)
adamc@443 546
adamc@443 547 val funcs = #funcs st
adamc@443 548 val funcs =
adamc@443 549 case #1 d of
adamc@443 550 DVal (x, n, c, e as (EAbs _, _), tag) =>
adamc@443 551 IM.insert (funcs, n, {name = x,
adamc@453 552 args = KM.empty,
adamc@443 553 body = e,
adamc@443 554 typ = c,
adamc@443 555 tag = tag})
adamc@469 556 | DVal (_, n, _, (ENamed n', _), _) =>
adamc@469 557 (case IM.find (funcs, n') of
adamc@469 558 NONE => funcs
adamc@469 559 | SOME v => IM.insert (funcs, n, v))
adamc@443 560 | _ => funcs
adamc@443 561
adamc@453 562 val (changed, ds) =
adamc@443 563 case #decls st of
adamc@453 564 [] => (changed, [d'])
adamc@453 565 | vis =>
adamc@453 566 (true, case d' of
adamc@453 567 (DValRec vis', _) => [(DValRec (vis @ vis'), ErrorMsg.dummySpan)]
adamc@453 568 | _ => [(DValRec vis, ErrorMsg.dummySpan), d'])
adamc@443 569 in
adamc@802 570 (*Print.prefaces "doDecl" [("d", CorePrint.p_decl E.empty d),
adamc@802 571 ("d'", CorePrint.p_decl E.empty d')];*)
adamc@521 572 (ds, ({maxName = #maxName st,
adamc@453 573 funcs = funcs,
adamc@1079 574 decls = [],
adamc@1079 575 specialized = #specialized st}, changed))
adamc@443 576 end
adamc@443 577
adamc@1120 578 (*val () = Print.preface ("RESET", CorePrint.p_file CoreEnv.empty file)*)
adamc@1079 579 val (ds, (st, changed)) = ListUtil.foldlMapConcat doDecl
adamc@521 580 ({maxName = U.File.maxName file + 1,
adamc@1080 581 funcs = funcs,
adamc@1079 582 decls = [],
adamc@1079 583 specialized = specialized},
adamc@488 584 false)
adamc@488 585 file
adamc@443 586 in
adamc@1120 587 (*print ("Changed = " ^ Bool.toString changed ^ "\n");*)
adamc@1080 588 (changed, ds, #funcs st, #specialized st)
adamc@443 589 end
adamc@443 590
adamc@1080 591 fun specializeL (funcs, specialized) file =
adamc@453 592 let
adamc@721 593 val file = ReduceLocal.reduce file
adamc@520 594 (*val file = ReduceLocal.reduce file*)
adamc@1080 595 val (changed, file, funcs, specialized) = specialize' (funcs, specialized) file
adamc@520 596 (*val file = ReduceLocal.reduce file
adamc@520 597 val file = CoreUntangle.untangle file
adamc@488 598 val file = Shake.shake file*)
adamc@453 599 in
adamc@488 600 (*print "Round over\n";*)
adamc@453 601 if changed then
adamc@520 602 let
adamc@721 603 (*val file = ReduceLocal.reduce file*)
adamc@802 604 (*val () = Print.prefaces "Pre-untangle" [("file", CorePrint.p_file CoreEnv.empty file)]*)
adamc@520 605 val file = CoreUntangle.untangle file
adamc@802 606 (*val () = Print.prefaces "Post-untangle" [("file", CorePrint.p_file CoreEnv.empty file)]*)
adamc@520 607 val file = Shake.shake file
adamc@520 608 in
adamc@520 609 (*print "Again!\n";*)
adamc@1080 610 (*Print.prefaces "Again" [("file", CorePrint.p_file CoreEnv.empty file)];*)
adamc@1080 611 specializeL (funcs, specialized) file
adamc@520 612 end
adamc@453 613 else
adamc@453 614 file
adamc@453 615 end
adamc@453 616
adamc@1080 617 val specialize = specializeL (IM.empty, IS.empty)
adamc@1079 618
adamc@443 619 end