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annotate src/especialize.sml @ 1554:396e8d881205

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Better detection of type class witnesses in local bindings
author Adam Chlipala <adam@chlipala.net>
date Sat, 03 Sep 2011 08:57:13 -0400
parents 0af6bd2dd149
children 0577be31a435
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@1382 327 fun valueish (all as (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@1383 340 | EApp (e1, e2) => valueish e1 andalso valueish e2
adam@1355 341 | ERecord xes => List.all (valueish o #2) xes
adam@1383 342 | EField (e, _, _) => valueish e
adam@1355 343 | _ => false
adam@1355 344
adam@1314 345 val vts = map (fn n => #2 (List.nth (env, n))) (IS.listItems fvs)
adamc@1079 346 val fxs' = map (squish (IS.listItems fvs)) fxs
adam@1362 347
adam@1362 348 val p_bool = Print.PD.string o Bool.toString
adamc@488 349 in
adam@1355 350 (*Print.prefaces "Func" [("name", Print.PD.string name),
adam@1355 351 ("e", CorePrint.p_exp CoreEnv.empty e),
adam@1355 352 ("fxs'", Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*)
adamc@1080 353 if not fin
adamc@1080 354 orelse List.all (fn (ERel _, _) => true
adamc@1080 355 | _ => false) fxs'
adam@1355 356 orelse List.exists (not o valueish) fxs'
adamc@1079 357 orelse (IS.numItems fvs >= length fxs
adamc@1079 358 andalso IS.exists (fn n => functionInside (#2 (List.nth (env, n)))) fvs) then
adamc@1083 359 ((*Print.prefaces "No" [("name", Print.PD.string name),
adamc@1120 360 ("f", Print.PD.string (Int.toString f)),
adamc@1083 361 ("fxs'",
adam@1362 362 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs'),
adam@1362 363 ("b1", p_bool (not fin)),
adam@1362 364 ("b2", p_bool (List.all (fn (ERel _, _) => true
adam@1362 365 | _ => false) fxs')),
adam@1382 366 ("b3", p_bool (List.exists (not o valueish) fxs')),
adam@1382 367 ("b4", p_bool (IS.numItems fvs >= length fxs
adam@1362 368 andalso IS.exists (fn n => functionInside (#2 (List.nth (env, n)))) fvs))];*)
adamc@1083 369 default ())
adamc@488 370 else
adam@1314 371 case (KM.find (args, (vts, fxs')),
adamc@1083 372 SS.member (!mayNotSpec, name) (*orelse IS.member (#specialized st, f)*)) of
adamc@800 373 (SOME f', _) =>
adamc@485 374 let
adamc@488 375 val e = (ENamed f', loc)
adamc@488 376 val e = IS.foldr (fn (arg, e) => (EApp (e, (ERel arg, loc)), loc))
adamc@488 377 e fvs
adamc@1079 378 val e = foldl (fn (arg, e) => (EApp (e, arg), loc))
adamc@488 379 e xs
adamc@488 380 in
adamc@488 381 (*Print.prefaces "Brand new (reuse)"
adamc@721 382 [("e'", CorePrint.p_exp CoreEnv.empty e)];*)
adamc@1080 383 (e, st)
adamc@488 384 end
adamc@1083 385 | (_, true) => ((*Print.prefaces ("No!(" ^ name ^ ")")
adamc@818 386 [("fxs'",
adamc@818 387 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*)
adamc@1080 388 default ())
adamc@800 389 | (NONE, false) =>
adamc@488 390 let
adamc@800 391 (*val () = Print.prefaces "New one"
adamc@800 392 [("f", Print.PD.string (Int.toString f)),
adamc@800 393 ("mns", Print.p_list Print.PD.string
adamc@800 394 (SS.listItems (!mayNotSpec)))]*)
adamc@800 395
adamc@818 396 (*val () = Print.prefaces ("Yes(" ^ name ^ ")")
adamc@818 397 [("fxs'",
adamc@818 398 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')]*)
adamc@818 399
adamc@1079 400 fun subBody (body, typ, fxs') =
adamc@1079 401 case (#1 body, #1 typ, fxs') of
adamc@488 402 (_, _, []) => SOME (body, typ)
adamc@1079 403 | (EAbs (_, _, _, body'), TFun (_, typ'), x :: fxs'') =>
adamc@488 404 let
adamc@1079 405 val body'' = E.subExpInExp (0, x) body'
adamc@488 406 in
adamc@488 407 subBody (body'',
adamc@488 408 typ',
adamc@1079 409 fxs'')
adamc@488 410 end
adamc@488 411 | _ => NONE
adamc@488 412 in
adamc@1079 413 case subBody (body, typ, fxs') of
adamc@1080 414 NONE => default ()
adamc@488 415 | SOME (body', typ') =>
adamc@488 416 let
adamc@488 417 val f' = #maxName st
adam@1314 418 val args = KM.insert (args, (vts, fxs'), f')
adamc@488 419 val funcs = IM.insert (#funcs st, f, {name = name,
adamc@488 420 args = args,
adamc@488 421 body = body,
adamc@488 422 typ = typ,
adamc@488 423 tag = tag})
adamc@1079 424
adamc@488 425 val st = {
adamc@488 426 maxName = f' + 1,
adamc@488 427 funcs = funcs,
adamc@1079 428 decls = #decls st,
adamc@1080 429 specialized = IS.add (#specialized st, f')
adamc@488 430 }
adamc@487 431
adamc@488 432 (*val () = Print.prefaces "specExp"
adamc@488 433 [("f", CorePrint.p_exp env (ENamed f, loc)),
adamc@488 434 ("f'", CorePrint.p_exp env (ENamed f', loc)),
adamc@488 435 ("xs", Print.p_list (CorePrint.p_exp env) xs),
adamc@488 436 ("fxs'", Print.p_list
adamc@488 437 (CorePrint.p_exp E.empty) fxs'),
adamc@488 438 ("e", CorePrint.p_exp env (e, loc))]*)
adamc@488 439 val (body', typ') = IS.foldl (fn (n, (body', typ')) =>
adamc@488 440 let
adamc@521 441 val (x, xt) = List.nth (env, n)
adamc@488 442 in
adamc@488 443 ((EAbs (x, xt, typ', body'),
adamc@488 444 loc),
adamc@488 445 (TFun (xt, typ'), loc))
adamc@488 446 end)
adamc@488 447 (body', typ') fvs
adamc@800 448 val mns = !mayNotSpec
adamc@1080 449 (*val () = mayNotSpec := SS.add (mns, name)*)
adamc@1272 450 (*val () = print ("NEW: " ^ name ^ "__" ^ Int.toString f' ^ "\n");*)
adamc@1272 451 val body' = ReduceLocal.reduceExp body'
adamc@1080 452 (*val () = Print.preface ("PRE", CorePrint.p_exp CoreEnv.empty body')*)
adamc@1080 453 val (body', st) = exp (env, body', st)
adamc@800 454 val () = mayNotSpec := mns
adamc@482 455
adamc@488 456 val e' = (ENamed f', loc)
adamc@488 457 val e' = IS.foldr (fn (arg, e) => (EApp (e, (ERel arg, loc)), loc))
adamc@488 458 e' fvs
adamc@1079 459 val e' = foldl (fn (arg, e) => (EApp (e, arg), loc))
adamc@488 460 e' xs
adam@1362 461
adamc@488 462 (*val () = Print.prefaces "Brand new"
adamc@721 463 [("e'", CorePrint.p_exp CoreEnv.empty e'),
adamc@1080 464 ("e", CorePrint.p_exp CoreEnv.empty e),
adamc@721 465 ("body'", CorePrint.p_exp CoreEnv.empty body')]*)
adamc@488 466 in
adamc@1080 467 (e',
adamc@488 468 {maxName = #maxName st,
adamc@488 469 funcs = #funcs st,
adamc@1079 470 decls = (name, f', typ', body', tag) :: #decls st,
adamc@1079 471 specialized = #specialized st})
adamc@488 472 end
adamc@485 473 end
adamc@488 474 end
adamc@485 475 end
adamc@482 476
adamc@521 477 fun doDecl (d, (st : state, changed)) =
adamc@488 478 let
adamc@521 479 (*val befor = Time.now ()*)
adamc@482 480
adamc@453 481 val funcs = #funcs st
adamc@453 482 val funcs =
adamc@453 483 case #1 d of
adamc@453 484 DValRec vis =>
adamc@453 485 foldl (fn ((x, n, c, e, tag), funcs) =>
adamc@453 486 IM.insert (funcs, n, {name = x,
adamc@453 487 args = KM.empty,
adamc@453 488 body = e,
adamc@453 489 typ = c,
adamc@453 490 tag = tag}))
adamc@453 491 funcs vis
adamc@453 492 | _ => funcs
adamc@453 493
adamc@453 494 val st = {maxName = #maxName st,
adamc@453 495 funcs = funcs,
adamc@1079 496 decls = [],
adamc@1079 497 specialized = #specialized st}
adamc@453 498
adamc@482 499 (*val () = Print.prefaces "decl" [("d", CorePrint.p_decl CoreEnv.empty d)]*)
adamc@521 500
adamc@1080 501 val () = mayNotSpec := SS.empty
adamc@1080 502
adamc@522 503 val (d', st) =
adamc@522 504 if isPoly d then
adamc@522 505 (d, st)
adamc@522 506 else
adamc@1080 507 case #1 d of
adamc@1080 508 DVal (x, n, t, e, s) =>
adamc@1080 509 let
adam@1362 510 (*val () = Print.preface ("Visiting", Print.box [Print.PD.string (x ^ "__" ^ Int.toString n),
adam@1362 511 Print.space,
adam@1362 512 Print.PD.string ":",
adam@1362 513 Print.space,
adam@1362 514 CorePrint.p_con CoreEnv.empty t])*)
adam@1362 515
adamc@1080 516 val (e, st) = exp ([], e, st)
adamc@1080 517 in
adamc@1080 518 ((DVal (x, n, t, e, s), #2 d), st)
adamc@1080 519 end
adamc@1080 520 | DValRec vis =>
adamc@1080 521 let
adamc@1120 522 (*val () = Print.preface ("Visiting", Print.p_list (fn vi =>
adam@1362 523 Print.box [Print.PD.string (#1 vi ^ "__"
adam@1362 524 ^ Int.toString
adam@1362 525 (#2 vi)),
adam@1362 526 Print.space,
adam@1362 527 Print.PD.string ":",
adam@1362 528 Print.space,
adam@1362 529 CorePrint.p_con CoreEnv.empty (#3 vi)])
adamc@1120 530 vis)*)
adamc@1120 531
adamc@1080 532 val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e, s), st) =>
adamc@1080 533 let
adamc@1120 534 val () = mayNotSpec := SS.empty
adamc@1080 535 val (e, st) = exp ([], e, st)
adamc@1080 536 in
adamc@1080 537 ((x, n, t, e, s), st)
adamc@1080 538 end) st vis
adamc@1080 539 in
adamc@1080 540 ((DValRec vis, #2 d), st)
adamc@1080 541 end
adamc@1080 542 | DTable (s, n, t, s1, e1, t1, e2, t2) =>
adamc@1080 543 let
adamc@1080 544 val (e1, st) = exp ([], e1, st)
adamc@1080 545 val (e2, st) = exp ([], e2, st)
adamc@1080 546 in
adamc@1080 547 ((DTable (s, n, t, s1, e1, t2, e2, t2), #2 d), st)
adamc@1080 548 end
adamc@1080 549 | DView (x, n, s, e, t) =>
adamc@1080 550 let
adamc@1080 551 val (e, st) = exp ([], e, st)
adamc@1080 552 in
adamc@1080 553 ((DView (x, n, s, e, t), #2 d), st)
adamc@1080 554 end
adamc@1080 555 | DTask (e1, e2) =>
adamc@1080 556 let
adamc@1080 557 val (e1, st) = exp ([], e1, st)
adamc@1080 558 val (e2, st) = exp ([], e2, st)
adamc@1080 559 in
adamc@1080 560 ((DTask (e1, e2), #2 d), st)
adamc@1080 561 end
adamc@1080 562 | _ => (d, st)
adamc@1080 563
adamc@1080 564 val () = mayNotSpec := SS.empty
adamc@521 565
adamc@482 566 (*val () = print "/decl\n"*)
adamc@443 567
adamc@443 568 val funcs = #funcs st
adamc@443 569 val funcs =
adamc@443 570 case #1 d of
adamc@443 571 DVal (x, n, c, e as (EAbs _, _), tag) =>
adamc@443 572 IM.insert (funcs, n, {name = x,
adamc@453 573 args = KM.empty,
adamc@443 574 body = e,
adamc@443 575 typ = c,
adamc@443 576 tag = tag})
adamc@469 577 | DVal (_, n, _, (ENamed n', _), _) =>
adamc@469 578 (case IM.find (funcs, n') of
adamc@469 579 NONE => funcs
adamc@469 580 | SOME v => IM.insert (funcs, n, v))
adamc@443 581 | _ => funcs
adamc@443 582
adamc@453 583 val (changed, ds) =
adamc@443 584 case #decls st of
adamc@453 585 [] => (changed, [d'])
adamc@453 586 | vis =>
adamc@453 587 (true, case d' of
adamc@453 588 (DValRec vis', _) => [(DValRec (vis @ vis'), ErrorMsg.dummySpan)]
adamc@453 589 | _ => [(DValRec vis, ErrorMsg.dummySpan), d'])
adamc@443 590 in
adamc@802 591 (*Print.prefaces "doDecl" [("d", CorePrint.p_decl E.empty d),
adamc@802 592 ("d'", CorePrint.p_decl E.empty d')];*)
adamc@521 593 (ds, ({maxName = #maxName st,
adamc@453 594 funcs = funcs,
adamc@1079 595 decls = [],
adamc@1079 596 specialized = #specialized st}, changed))
adamc@443 597 end
adamc@443 598
adamc@1120 599 (*val () = Print.preface ("RESET", CorePrint.p_file CoreEnv.empty file)*)
adamc@1079 600 val (ds, (st, changed)) = ListUtil.foldlMapConcat doDecl
adamc@521 601 ({maxName = U.File.maxName file + 1,
adamc@1080 602 funcs = funcs,
adamc@1079 603 decls = [],
adamc@1079 604 specialized = specialized},
adamc@488 605 false)
adamc@488 606 file
adamc@443 607 in
adamc@1120 608 (*print ("Changed = " ^ Bool.toString changed ^ "\n");*)
adamc@1080 609 (changed, ds, #funcs st, #specialized st)
adamc@443 610 end
adamc@443 611
adamc@1080 612 fun specializeL (funcs, specialized) file =
adamc@453 613 let
adamc@721 614 val file = ReduceLocal.reduce file
adamc@520 615 (*val file = ReduceLocal.reduce file*)
adamc@1080 616 val (changed, file, funcs, specialized) = specialize' (funcs, specialized) file
adamc@520 617 (*val file = ReduceLocal.reduce file
adamc@520 618 val file = CoreUntangle.untangle file
adamc@488 619 val file = Shake.shake file*)
adamc@453 620 in
adamc@488 621 (*print "Round over\n";*)
adamc@453 622 if changed then
adamc@520 623 let
adamc@721 624 (*val file = ReduceLocal.reduce file*)
adamc@802 625 (*val () = Print.prefaces "Pre-untangle" [("file", CorePrint.p_file CoreEnv.empty file)]*)
adamc@520 626 val file = CoreUntangle.untangle file
adamc@802 627 (*val () = Print.prefaces "Post-untangle" [("file", CorePrint.p_file CoreEnv.empty file)]*)
adamc@520 628 val file = Shake.shake file
adamc@520 629 in
adamc@520 630 (*print "Again!\n";*)
adamc@1080 631 (*Print.prefaces "Again" [("file", CorePrint.p_file CoreEnv.empty file)];*)
adamc@1080 632 specializeL (funcs, specialized) file
adamc@520 633 end
adamc@453 634 else
adamc@453 635 file
adamc@453 636 end
adamc@453 637
adamc@1080 638 val specialize = specializeL (IM.empty, IS.empty)
adamc@1079 639
adamc@443 640 end