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annotate src/especialize.sml @ 1667:833402503855

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Tweak Especialize heuristic to prevent non-termination
author Adam Chlipala <adam@chlipala.net>
date Mon, 09 Jan 2012 09:51:39 -0500
parents 0577be31a435
children 4cacced4a6da
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
adam@1289 124 val functionInside = U.Con.exists {kind = fn _ => false,
adam@1289 125 con = fn TFun _ => true
adam@1289 126 | CFfi ("Basis", "transaction") => true
adam@1289 127 | CFfi ("Basis", "eq") => true
adam@1289 128 | CFfi ("Basis", "num") => true
adam@1289 129 | CFfi ("Basis", "ord") => true
adam@1289 130 | CFfi ("Basis", "show") => true
adam@1289 131 | CFfi ("Basis", "read") => true
adam@1289 132 | CFfi ("Basis", "sql_injectable_prim") => true
adam@1289 133 | CFfi ("Basis", "sql_injectable") => true
adam@1289 134 | _ => false}
adam@1289 135
adamc@1080 136 fun specialize' (funcs, specialized) file =
adamc@443 137 let
adamc@488 138 fun bind (env, b) =
adamc@488 139 case b of
adamc@521 140 U.Decl.RelE xt => xt :: env
adamc@521 141 | _ => env
adamc@488 142
adamc@1080 143 fun exp (env, e as (_, loc), st : state) =
adamc@482 144 let
adamc@721 145 (*val () = Print.prefaces "exp" [("e", CorePrint.p_exp CoreEnv.empty
adamc@721 146 (e, ErrorMsg.dummySpan))]*)
adamc@721 147
adamc@1080 148 fun getApp (e, _) =
adamc@482 149 case e of
adamc@488 150 ENamed f => SOME (f, [])
adamc@482 151 | EApp (e1, e2) =>
adamc@1080 152 (case getApp e1 of
adamc@482 153 NONE => NONE
adamc@488 154 | SOME (f, xs) => SOME (f, xs @ [e2]))
adamc@482 155 | _ => NONE
adamc@1080 156
adamc@1080 157 val getApp = fn e => case getApp e of
adamc@1080 158 v as SOME (_, _ :: _) => v
adamc@1080 159 | _ => NONE
adamc@1080 160
adamc@1080 161 fun default () =
adamc@1080 162 case #1 e of
adamc@1080 163 EPrim _ => (e, st)
adamc@1080 164 | ERel _ => (e, st)
adamc@1080 165 | ENamed _ => (e, st)
adamc@1080 166 | ECon (_, _, _, NONE) => (e, st)
adamc@1080 167 | ECon (dk, pc, cs, SOME e) =>
adamc@1080 168 let
adamc@1080 169 val (e, st) = exp (env, e, st)
adamc@1080 170 in
adamc@1080 171 ((ECon (dk, pc, cs, SOME e), loc), st)
adamc@1080 172 end
adamc@1080 173 | EFfi _ => (e, st)
adamc@1080 174 | EFfiApp (m, x, es) =>
adamc@1080 175 let
adam@1663 176 val (es, st) = ListUtil.foldlMap (fn ((e, t), st) =>
adam@1663 177 let
adam@1663 178 val (e, st) = exp (env, e, st)
adam@1663 179 in
adam@1663 180 ((e, t), st)
adam@1663 181 end) st es
adamc@1080 182 in
adamc@1080 183 ((EFfiApp (m, x, es), loc), st)
adamc@1080 184 end
adamc@1080 185 | EApp (e1, e2) =>
adamc@1080 186 let
adamc@1080 187 val (e1, st) = exp (env, e1, st)
adamc@1080 188 val (e2, st) = exp (env, e2, st)
adamc@1080 189 in
adamc@1080 190 ((EApp (e1, e2), loc), st)
adamc@1080 191 end
adamc@1080 192 | EAbs (x, d, r, e) =>
adamc@1080 193 let
adamc@1080 194 val (e, st) = exp ((x, d) :: env, e, st)
adamc@1080 195 in
adamc@1080 196 ((EAbs (x, d, r, e), loc), st)
adamc@1080 197 end
adamc@1080 198 | ECApp (e, c) =>
adamc@1080 199 let
adamc@1080 200 val (e, st) = exp (env, e, st)
adamc@1080 201 in
adamc@1080 202 ((ECApp (e, c), loc), st)
adamc@1080 203 end
adamc@1185 204 | ECAbs _ => (e, st)
adamc@1120 205 | EKAbs _ => (e, st)
adamc@1080 206 | EKApp (e, k) =>
adamc@1080 207 let
adamc@1080 208 val (e, st) = exp (env, e, st)
adamc@1080 209 in
adamc@1080 210 ((EKApp (e, k), loc), st)
adamc@1080 211 end
adamc@1080 212 | ERecord fs =>
adamc@1080 213 let
adamc@1080 214 val (fs, st) = ListUtil.foldlMap (fn ((c1, e, c2), st) =>
adamc@1080 215 let
adamc@1080 216 val (e, st) = exp (env, e, st)
adamc@1080 217 in
adamc@1080 218 ((c1, e, c2), st)
adamc@1080 219 end) st fs
adamc@1080 220 in
adamc@1080 221 ((ERecord fs, loc), st)
adamc@1080 222 end
adamc@1080 223 | EField (e, c, cs) =>
adamc@1080 224 let
adamc@1080 225 val (e, st) = exp (env, e, st)
adamc@1080 226 in
adamc@1080 227 ((EField (e, c, cs), loc), st)
adamc@1080 228 end
adamc@1080 229 | EConcat (e1, c1, e2, c2) =>
adamc@1080 230 let
adamc@1080 231 val (e1, st) = exp (env, e1, st)
adamc@1080 232 val (e2, st) = exp (env, e2, st)
adamc@1080 233 in
adamc@1080 234 ((EConcat (e1, c1, e2, c2), loc), st)
adamc@1080 235 end
adamc@1080 236 | ECut (e, c, cs) =>
adamc@1080 237 let
adamc@1080 238 val (e, st) = exp (env, e, st)
adamc@1080 239 in
adamc@1080 240 ((ECut (e, c, cs), loc), st)
adamc@1080 241 end
adamc@1080 242 | ECutMulti (e, c, cs) =>
adamc@1080 243 let
adamc@1080 244 val (e, st) = exp (env, e, st)
adamc@1080 245 in
adamc@1080 246 ((ECutMulti (e, c, cs), loc), st)
adamc@1080 247 end
adamc@1080 248
adamc@1080 249 | ECase (e, pes, cs) =>
adamc@1080 250 let
adamc@1080 251 val (e, st) = exp (env, e, st)
adamc@1080 252 val (pes, st) = ListUtil.foldlMap (fn ((p, e), st) =>
adamc@1080 253 let
adamc@1080 254 val (e, st) = exp (E.patBindsL p @ env, e, st)
adamc@1080 255 in
adamc@1080 256 ((p, e), st)
adamc@1080 257 end) st pes
adamc@1080 258 in
adamc@1080 259 ((ECase (e, pes, cs), loc), st)
adamc@1080 260 end
adamc@1080 261
adamc@1080 262 | EWrite e =>
adamc@1080 263 let
adamc@1080 264 val (e, st) = exp (env, e, st)
adamc@1080 265 in
adamc@1080 266 ((EWrite e, loc), st)
adamc@1080 267 end
adamc@1080 268 | EClosure (n, es) =>
adamc@1080 269 let
adamc@1080 270 val (es, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st es
adamc@1080 271 in
adamc@1080 272 ((EClosure (n, es), loc), st)
adamc@1080 273 end
adamc@1080 274 | ELet (x, t, e1, e2) =>
adamc@1080 275 let
adamc@1080 276 val (e1, st) = exp (env, e1, st)
adamc@1080 277 val (e2, st) = exp ((x, t) :: env, e2, st)
adamc@1080 278 in
adamc@1080 279 ((ELet (x, t, e1, e2), loc), st)
adamc@1080 280 end
adamc@1080 281 | EServerCall (n, es, t) =>
adamc@1080 282 let
adamc@1080 283 val (es, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st es
adamc@1080 284 in
adamc@1080 285 ((EServerCall (n, es, t), loc), st)
adamc@1080 286 end
adamc@482 287 in
adamc@482 288 case getApp e of
adamc@1080 289 NONE => default ()
adamc@488 290 | SOME (f, xs) =>
adamc@485 291 case IM.find (#funcs st, f) of
adamc@1272 292 NONE => ((*print ("No find: " ^ Int.toString f ^ "\n");*) default ())
adamc@485 293 | SOME {name, args, body, typ, tag} =>
adamc@488 294 let
adamc@1080 295 val (xs, st) = ListUtil.foldlMap (fn (e, st) => exp (env, e, st)) st xs
adamc@1080 296
adamc@721 297 (*val () = Print.prefaces "Consider" [("e", CorePrint.p_exp CoreEnv.empty
adamc@721 298 (e, ErrorMsg.dummySpan))]*)
adamc@721 299
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
adam@1382 325 fun valueish (all as (e, _)) =
adam@1355 326 case e of
adam@1355 327 EPrim _ => true
adam@1355 328 | ERel _ => true
adam@1355 329 | ENamed _ => true
adam@1355 330 | ECon (_, _, _, NONE) => true
adam@1355 331 | ECon (_, _, _, SOME e) => valueish e
adam@1355 332 | EFfi (_, _) => true
adam@1355 333 | EAbs _ => true
adam@1355 334 | ECAbs _ => true
adam@1355 335 | EKAbs _ => true
adam@1355 336 | ECApp (e, _) => valueish e
adam@1355 337 | EKApp (e, _) => valueish e
adam@1383 338 | EApp (e1, e2) => valueish e1 andalso valueish e2
adam@1355 339 | ERecord xes => List.all (valueish o #2) xes
adam@1383 340 | EField (e, _, _) => valueish e
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
adam@1362 345
adam@1362 346 val p_bool = Print.PD.string o Bool.toString
adam@1667 347
adam@1667 348 fun bumpCount n =
adam@1667 349 if IS.member (#specialized st, f) then
adam@1667 350 n
adam@1667 351 else
adam@1667 352 5 + 2 *n
adamc@488 353 in
adam@1355 354 (*Print.prefaces "Func" [("name", Print.PD.string name),
adam@1355 355 ("e", CorePrint.p_exp CoreEnv.empty e),
adam@1355 356 ("fxs'", Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*)
adamc@1080 357 if not fin
adamc@1080 358 orelse List.all (fn (ERel _, _) => true
adamc@1080 359 | _ => false) fxs'
adam@1355 360 orelse List.exists (not o valueish) fxs'
adam@1667 361 orelse IS.numItems fvs >= bumpCount (length fxs) then
adamc@1083 362 ((*Print.prefaces "No" [("name", Print.PD.string name),
adamc@1120 363 ("f", Print.PD.string (Int.toString f)),
adamc@1083 364 ("fxs'",
adam@1362 365 Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs'),
adam@1362 366 ("b1", p_bool (not fin)),
adam@1362 367 ("b2", p_bool (List.all (fn (ERel _, _) => true
adam@1362 368 | _ => false) fxs')),
adam@1382 369 ("b3", p_bool (List.exists (not o valueish) fxs')),
adam@1382 370 ("b4", p_bool (IS.numItems fvs >= length fxs
adam@1362 371 andalso IS.exists (fn n => functionInside (#2 (List.nth (env, n)))) fvs))];*)
adamc@1083 372 default ())
adamc@488 373 else
adam@1667 374 case KM.find (args, (vts, fxs')) of
adam@1667 375 SOME f' =>
adamc@485 376 let
adamc@488 377 val e = (ENamed f', loc)
adamc@488 378 val e = IS.foldr (fn (arg, e) => (EApp (e, (ERel arg, loc)), loc))
adamc@488 379 e fvs
adamc@1079 380 val e = foldl (fn (arg, e) => (EApp (e, arg), loc))
adamc@488 381 e xs
adamc@488 382 in
adamc@488 383 (*Print.prefaces "Brand new (reuse)"
adamc@721 384 [("e'", CorePrint.p_exp CoreEnv.empty e)];*)
adamc@1080 385 (e, st)
adamc@488 386 end
adam@1667 387 | NONE =>
adamc@488 388 let
adamc@800 389 (*val () = Print.prefaces "New one"
adam@1667 390 [("name", Print.PD.string name),
adam@1667 391 ("f", Print.PD.string (Int.toString f)),
adam@1667 392 ("|fvs|", Print.PD.string (Int.toString (IS.numItems fvs))),
adam@1667 393 ("|fxs|", Print.PD.string (Int.toString (length fxs))),
adam@1667 394 ("spec", Print.PD.string (Bool.toString (IS.member (#specialized st, f))))]*)
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@1272 448 (*val () = print ("NEW: " ^ name ^ "__" ^ Int.toString f' ^ "\n");*)
adamc@1272 449 val body' = ReduceLocal.reduceExp body'
adamc@1080 450 (*val () = Print.preface ("PRE", CorePrint.p_exp CoreEnv.empty body')*)
adamc@1080 451 val (body', st) = exp (env, body', st)
adamc@482 452
adamc@488 453 val e' = (ENamed f', loc)
adamc@488 454 val e' = IS.foldr (fn (arg, e) => (EApp (e, (ERel arg, loc)), loc))
adamc@488 455 e' fvs
adamc@1079 456 val e' = foldl (fn (arg, e) => (EApp (e, arg), loc))
adamc@488 457 e' xs
adam@1362 458
adamc@488 459 (*val () = Print.prefaces "Brand new"
adamc@721 460 [("e'", CorePrint.p_exp CoreEnv.empty e'),
adamc@1080 461 ("e", CorePrint.p_exp CoreEnv.empty e),
adamc@721 462 ("body'", CorePrint.p_exp CoreEnv.empty body')]*)
adamc@488 463 in
adamc@1080 464 (e',
adamc@488 465 {maxName = #maxName st,
adamc@488 466 funcs = #funcs st,
adamc@1079 467 decls = (name, f', typ', body', tag) :: #decls st,
adamc@1079 468 specialized = #specialized st})
adamc@488 469 end
adamc@485 470 end
adamc@488 471 end
adamc@485 472 end
adamc@482 473
adamc@521 474 fun doDecl (d, (st : state, changed)) =
adamc@488 475 let
adamc@521 476 (*val befor = Time.now ()*)
adamc@482 477
adamc@453 478 val funcs = #funcs st
adamc@453 479 val funcs =
adamc@453 480 case #1 d of
adamc@453 481 DValRec vis =>
adamc@453 482 foldl (fn ((x, n, c, e, tag), funcs) =>
adamc@453 483 IM.insert (funcs, n, {name = x,
adamc@453 484 args = KM.empty,
adamc@453 485 body = e,
adamc@453 486 typ = c,
adamc@453 487 tag = tag}))
adamc@453 488 funcs vis
adamc@453 489 | _ => funcs
adamc@453 490
adamc@453 491 val st = {maxName = #maxName st,
adamc@453 492 funcs = funcs,
adamc@1079 493 decls = [],
adamc@1079 494 specialized = #specialized st}
adamc@453 495
adamc@482 496 (*val () = Print.prefaces "decl" [("d", CorePrint.p_decl CoreEnv.empty d)]*)
adamc@521 497
adamc@522 498 val (d', st) =
adamc@522 499 if isPoly d then
adamc@522 500 (d, st)
adamc@522 501 else
adamc@1080 502 case #1 d of
adamc@1080 503 DVal (x, n, t, e, s) =>
adamc@1080 504 let
adam@1362 505 (*val () = Print.preface ("Visiting", Print.box [Print.PD.string (x ^ "__" ^ Int.toString n),
adam@1362 506 Print.space,
adam@1362 507 Print.PD.string ":",
adam@1362 508 Print.space,
adam@1362 509 CorePrint.p_con CoreEnv.empty t])*)
adam@1362 510
adamc@1080 511 val (e, st) = exp ([], e, st)
adamc@1080 512 in
adamc@1080 513 ((DVal (x, n, t, e, s), #2 d), st)
adamc@1080 514 end
adamc@1080 515 | DValRec vis =>
adamc@1080 516 let
adamc@1120 517 (*val () = Print.preface ("Visiting", Print.p_list (fn vi =>
adam@1362 518 Print.box [Print.PD.string (#1 vi ^ "__"
adam@1362 519 ^ Int.toString
adam@1362 520 (#2 vi)),
adam@1362 521 Print.space,
adam@1362 522 Print.PD.string ":",
adam@1362 523 Print.space,
adam@1362 524 CorePrint.p_con CoreEnv.empty (#3 vi)])
adamc@1120 525 vis)*)
adamc@1120 526
adamc@1080 527 val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e, s), st) =>
adamc@1080 528 let
adamc@1080 529 val (e, st) = exp ([], e, st)
adamc@1080 530 in
adamc@1080 531 ((x, n, t, e, s), st)
adamc@1080 532 end) st vis
adamc@1080 533 in
adamc@1080 534 ((DValRec vis, #2 d), st)
adamc@1080 535 end
adamc@1080 536 | DTable (s, n, t, s1, e1, t1, e2, t2) =>
adamc@1080 537 let
adamc@1080 538 val (e1, st) = exp ([], e1, st)
adamc@1080 539 val (e2, st) = exp ([], e2, st)
adamc@1080 540 in
adamc@1080 541 ((DTable (s, n, t, s1, e1, t2, e2, t2), #2 d), st)
adamc@1080 542 end
adamc@1080 543 | DView (x, n, s, e, t) =>
adamc@1080 544 let
adamc@1080 545 val (e, st) = exp ([], e, st)
adamc@1080 546 in
adamc@1080 547 ((DView (x, n, s, e, t), #2 d), st)
adamc@1080 548 end
adamc@1080 549 | DTask (e1, e2) =>
adamc@1080 550 let
adamc@1080 551 val (e1, st) = exp ([], e1, st)
adamc@1080 552 val (e2, st) = exp ([], e2, st)
adamc@1080 553 in
adamc@1080 554 ((DTask (e1, e2), #2 d), st)
adamc@1080 555 end
adamc@1080 556 | _ => (d, st)
adamc@1080 557
adamc@482 558 (*val () = print "/decl\n"*)
adamc@443 559
adamc@443 560 val funcs = #funcs st
adamc@443 561 val funcs =
adamc@443 562 case #1 d of
adamc@443 563 DVal (x, n, c, e as (EAbs _, _), tag) =>
adamc@443 564 IM.insert (funcs, n, {name = x,
adamc@453 565 args = KM.empty,
adamc@443 566 body = e,
adamc@443 567 typ = c,
adamc@443 568 tag = tag})
adamc@469 569 | DVal (_, n, _, (ENamed n', _), _) =>
adamc@469 570 (case IM.find (funcs, n') of
adamc@469 571 NONE => funcs
adamc@469 572 | SOME v => IM.insert (funcs, n, v))
adamc@443 573 | _ => funcs
adamc@443 574
adamc@453 575 val (changed, ds) =
adamc@443 576 case #decls st of
adamc@453 577 [] => (changed, [d'])
adamc@453 578 | vis =>
adamc@453 579 (true, case d' of
adamc@453 580 (DValRec vis', _) => [(DValRec (vis @ vis'), ErrorMsg.dummySpan)]
adamc@453 581 | _ => [(DValRec vis, ErrorMsg.dummySpan), d'])
adamc@443 582 in
adamc@802 583 (*Print.prefaces "doDecl" [("d", CorePrint.p_decl E.empty d),
adamc@802 584 ("d'", CorePrint.p_decl E.empty d')];*)
adamc@521 585 (ds, ({maxName = #maxName st,
adamc@453 586 funcs = funcs,
adamc@1079 587 decls = [],
adamc@1079 588 specialized = #specialized st}, changed))
adamc@443 589 end
adamc@443 590
adamc@1120 591 (*val () = Print.preface ("RESET", CorePrint.p_file CoreEnv.empty file)*)
adamc@1079 592 val (ds, (st, changed)) = ListUtil.foldlMapConcat doDecl
adamc@521 593 ({maxName = U.File.maxName file + 1,
adamc@1080 594 funcs = funcs,
adamc@1079 595 decls = [],
adamc@1079 596 specialized = specialized},
adamc@488 597 false)
adamc@488 598 file
adamc@443 599 in
adamc@1120 600 (*print ("Changed = " ^ Bool.toString changed ^ "\n");*)
adamc@1080 601 (changed, ds, #funcs st, #specialized st)
adamc@443 602 end
adamc@443 603
adamc@1080 604 fun specializeL (funcs, specialized) file =
adamc@453 605 let
adamc@721 606 val file = ReduceLocal.reduce file
adamc@520 607 (*val file = ReduceLocal.reduce file*)
adamc@1080 608 val (changed, file, funcs, specialized) = specialize' (funcs, specialized) file
adamc@520 609 (*val file = ReduceLocal.reduce file
adamc@520 610 val file = CoreUntangle.untangle file
adamc@488 611 val file = Shake.shake file*)
adamc@453 612 in
adamc@488 613 (*print "Round over\n";*)
adamc@453 614 if changed then
adamc@520 615 let
adamc@721 616 (*val file = ReduceLocal.reduce file*)
adamc@802 617 (*val () = Print.prefaces "Pre-untangle" [("file", CorePrint.p_file CoreEnv.empty file)]*)
adamc@520 618 val file = CoreUntangle.untangle file
adamc@802 619 (*val () = Print.prefaces "Post-untangle" [("file", CorePrint.p_file CoreEnv.empty file)]*)
adamc@520 620 val file = Shake.shake file
adamc@520 621 in
adamc@520 622 (*print "Again!\n";*)
adamc@1080 623 (*Print.prefaces "Again" [("file", CorePrint.p_file CoreEnv.empty file)];*)
adamc@1080 624 specializeL (funcs, specialized) file
adamc@520 625 end
adamc@453 626 else
adamc@453 627 file
adamc@453 628 end
adamc@453 629
adamc@1080 630 val specialize = specializeL (IM.empty, IS.empty)
adamc@1079 631
adamc@443 632 end