ghc/rts/StgMiscClosures.hc

   1 /* -----------------------------------------------------------------------------
   2  * $Id: StgMiscClosures.hc,v 1.17 1999/03/15 16:30:29 simonm Exp $
   3  *
   4  * (c) The GHC Team, 1998-1999
   5  *
   6  * Entry code for various built-in closure types.
   7  *
   8  * ---------------------------------------------------------------------------*/
   9
  10 #include "Rts.h"
  11 #include "RtsUtils.h"
  12 #include "StgMiscClosures.h"
  13 #include "HeapStackCheck.h"   /* for stg_gen_yield */
  14 #include "Storage.h"
  15 #include "StoragePriv.h"
  16
  17 #ifdef HAVE_STDIO_H
  18 #include <stdio.h>
  19 #endif
  20
  21 /* -----------------------------------------------------------------------------
  22    Entry code for an indirection.
  23
  24    This code assumes R1 is in a register for now.
  25    -------------------------------------------------------------------------- */
  26
  27 INFO_TABLE(IND_info,IND_entry,1,0,IND,const,EF_,0,0);
  28 STGFUN(IND_entry)
  29 {
  30     FB_
  31     TICK_ENT_IND(Node); /* tick */
  32
  33     R1.p = (P_) ((StgInd*)R1.p)->indirectee;
  34     TICK_ENT_VIA_NODE();
  35     JMP_(*R1.p);
  36     FE_
  37 }
  38
  39 INFO_TABLE(IND_STATIC_info,IND_STATIC_entry,1,0,IND_STATIC,const,EF_,0,0);
  40 STGFUN(IND_STATIC_entry)
  41 {
  42     FB_
  43     TICK_ENT_IND(Node); /* tick */
  44
  45     R1.p = (P_) ((StgIndStatic*)R1.p)->indirectee;
  46     TICK_ENT_VIA_NODE();
  47     JMP_(*R1.p);
  48     FE_
  49 }
  50
  51 INFO_TABLE(IND_PERM_info,IND_PERM_entry,1,0,IND_PERM,const,EF_,0,0);
  52 STGFUN(IND_PERM_entry)
  53 {
  54     FB_
  55     /* Don't add INDs to granularity cost */
  56
  57     /* Dont: ENT_IND(Node); for ticky-ticky; this ind is here only to help profi
  58 ling */
  59
  60     /* Enter PAP cost centre -- lexical scoping only */
  61     ENTER_CCS_PAP_CL(R1.cl);
  62
  63     R1.p = (P_) ((StgInd*)R1.p)->indirectee;
  64
  65     /* Dont: TICK_ENT_VIA_NODE(); for ticky-ticky; as above */
  66
  67     JMP_(*R1.p);
  68     FE_
  69 }
  70
  71 INFO_TABLE(IND_OLDGEN_info,IND_OLDGEN_entry,1,1,IND_OLDGEN,const,EF_,0,0);
  72 STGFUN(IND_OLDGEN_entry)
  73 {
  74     FB_
  75     TICK_ENT_IND(Node); /* tick */
  76
  77     R1.p = (P_) ((StgInd*)R1.p)->indirectee;
  78     TICK_ENT_VIA_NODE();
  79     JMP_(*R1.p);
  80     FE_
  81 }
  82
  83 INFO_TABLE(IND_OLDGEN_PERM_info,IND_OLDGEN_PERM_entry,1,1,IND_OLDGEN_PERM,const,EF_,0,0);
  84 STGFUN(IND_OLDGEN_PERM_entry)
  85 {
  86     FB_
  87     TICK_ENT_IND(Node); /* tick */
  88
  89     R1.p = (P_) ((StgInd*)R1.p)->indirectee;
  90     TICK_ENT_VIA_NODE();
  91     JMP_(*R1.p);
  92     FE_
  93 }
  94
  95 /* -----------------------------------------------------------------------------
  96    Entry code for CAFs
  97
  98    This code assumes R1 is in a register for now.
  99    -------------------------------------------------------------------------- */
 100
 101 INFO_TABLE(CAF_UNENTERED_info,CAF_UNENTERED_entry,1,3,CAF_UNENTERED,const,EF_,0,0);
 102 STGFUN(CAF_UNENTERED_entry)
 103 {
 104     FB_
 105     /* ToDo: implement directly in GHC */
 106     Sp -= 1;
 107     Sp[0] = R1.w;
 108     JMP_(stg_yield_to_Hugs);
 109     FE_
 110 }
 111
 112 /* 0,4 is entirely bogus; _do not_ rely on this info */
 113 INFO_TABLE(CAF_ENTERED_info,CAF_ENTERED_entry,0,4,CAF_ENTERED,const,EF_,0,0);
 114 STGFUN(CAF_ENTERED_entry)
 115 {
 116     FB_
 117     R1.p = (P_) ((StgCAF*)R1.p)->value; /* just a fancy indirection */
 118     TICK_ENT_VIA_NODE();
 119     JMP_(GET_ENTRY(R1.cl));
 120     FE_
 121 }
 122
 123 /* -----------------------------------------------------------------------------
 124    Entry code for a black hole.
 125
 126    Entering a black hole normally causes a cyclic data dependency, but
 127    in the concurrent world, black holes are synchronization points,
 128    and they are turned into blocking queues when there are threads
 129    waiting for the evaluation of the closure to finish.
 130    -------------------------------------------------------------------------- */
 131
 132 /* Note: a black hole must be big enough to be overwritten with an
 133  * indirection/evacuee/catch.  Thus we claim it has 1 non-pointer word of
 134  * payload (in addition to the pointer word for the blocking queue), which
 135  * should be big enough for an old-generation indirection.
 136  */
 137
 138 INFO_TABLE(BLACKHOLE_info, BLACKHOLE_entry,0,2,BLACKHOLE,const,EF_,0,0);
 139 STGFUN(BLACKHOLE_entry)
 140 {
 141   FB_
 142     TICK_ENT_BH();
 143
 144     /* Change the BLACKHOLE into a BLACKHOLE_BQ */
 145     ((StgBlockingQueue *)R1.p)->header.info = &BLACKHOLE_BQ_info;
 146     /* Put ourselves on the blocking queue for this black hole */
 147     CurrentTSO->link = (StgTSO *)&END_TSO_QUEUE_closure;
 148     ((StgBlockingQueue *)R1.p)->blocking_queue = CurrentTSO;
 149     recordMutable((StgMutClosure *)R1.cl);
 150
 151     /* stg_gen_block is too heavyweight, use a specialised one */
 152     BLOCK_NP(1);
 153   FE_
 154 }
 155
 156 INFO_TABLE(BLACKHOLE_BQ_info, BLACKHOLE_BQ_entry,1,1,BLACKHOLE_BQ,const,EF_,0,0);
 157 STGFUN(BLACKHOLE_BQ_entry)
 158 {
 159   FB_
 160     TICK_ENT_BH();
 161
 162     /* Put ourselves on the blocking queue for this black hole */
 163     CurrentTSO->link = ((StgBlockingQueue *)R1.p)->blocking_queue;
 164     ((StgBlockingQueue *)R1.p)->blocking_queue = CurrentTSO;
 165
 166     /* stg_gen_block is too heavyweight, use a specialised one */
 167     BLOCK_NP(1);
 168   FE_
 169 }
 170
 171 /* identical to BLACKHOLEs except for the infotag */
 172 INFO_TABLE(CAF_BLACKHOLE_info, CAF_BLACKHOLE_entry,0,2,CAF_BLACKHOLE,const,EF_,0,0);
 173 STGFUN(CAF_BLACKHOLE_entry)
 174 {
 175   FB_
 176     TICK_ENT_BH();
 177
 178     /* Change the BLACKHOLE into a BLACKHOLE_BQ */
 179     ((StgBlockingQueue *)R1.p)->header.info = &BLACKHOLE_BQ_info;
 180     /* Put ourselves on the blocking queue for this black hole */
 181     CurrentTSO->link = (StgTSO *)&END_TSO_QUEUE_closure;
 182     ((StgBlockingQueue *)R1.p)->blocking_queue = CurrentTSO;
 183     recordMutable((StgMutClosure *)R1.cl);
 184
 185     /* stg_gen_block is too heavyweight, use a specialised one */
 186     BLOCK_NP(1);
 187   FE_
 188 }
 189
 190 /* -----------------------------------------------------------------------------
 191    The code for a BCO returns to the scheduler
 192    -------------------------------------------------------------------------- */
 193 INFO_TABLE(BCO_info,BCO_entry,0,0,BCO,const,EF_,0,0);
 194 EF_(BCO_entry) {
 195   FB_
 196     Sp -= 1;
 197     Sp[0] = R1.w;
 198     JMP_(stg_yield_to_Hugs);
 199   FE_
 200 }
 201
 202 /* -----------------------------------------------------------------------------
 203    Some static info tables for things that don't get entered, and
 204    therefore don't need entry code (i.e. boxed but unpointed objects)
 205    -------------------------------------------------------------------------- */
 206
 207 #define NON_ENTERABLE_ENTRY_CODE(type)                                  \
 208 STGFUN(type##_entry)                                                    \
 209 {                                                                       \
 210   FB_                                                                   \
 211     STGCALL1(fflush,stdout);                                            \
 212     STGCALL2(fprintf,stderr,#type " object entered!\n");                \
 213     STGCALL1(raiseError, errorHandler);                                 \
 214     stg_exit(EXIT_FAILURE); /* not executed */                          \
 215   FE_                                                                   \
 216 }
 217
 218 INFO_TABLE(TSO_info, TSO_entry, 0,0,TSO,const,EF_,0,0);
 219 NON_ENTERABLE_ENTRY_CODE(TSO);
 220
 221 /* -----------------------------------------------------------------------------
 222    Evacuees are left behind by the garbage collector.  Any attempt to enter
 223    one is a real bug.
 224    -------------------------------------------------------------------------- */
 225
 226 INFO_TABLE(EVACUATED_info,EVACUATED_entry,1,0,EVACUATED,const,EF_,0,0);
 227 NON_ENTERABLE_ENTRY_CODE(EVACUATED);
 228
 229 /* -----------------------------------------------------------------------------
 230    Weak pointers
 231
 232    Live weak pointers have a special closure type.  Dead ones are just
 233    nullary constructors (although they live on the heap - we overwrite
 234    live weak pointers with dead ones).
 235    -------------------------------------------------------------------------- */
 236
 237 INFO_TABLE(WEAK_info,WEAK_entry,0,4,WEAK,const,EF_,0,0);
 238 NON_ENTERABLE_ENTRY_CODE(WEAK);
 239
 240 INFO_TABLE_CONSTR(DEAD_WEAK_info,DEAD_WEAK_entry,0,1,0,CONSTR,const,EF_,0,0);
 241 NON_ENTERABLE_ENTRY_CODE(DEAD_WEAK);
 242
 243 /* -----------------------------------------------------------------------------
 244    NO_FINALIZER
 245
 246    This is a static nullary constructor (like []) that we use to mark an empty
 247    finalizer in a weak pointer object.
 248    -------------------------------------------------------------------------- */
 249
 250 INFO_TABLE_CONSTR(NO_FINALIZER_info,NO_FINALIZER_entry,0,0,0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 251 NON_ENTERABLE_ENTRY_CODE(NO_FINALIZER);
 252
 253 SET_STATIC_HDR(NO_FINALIZER_closure,NO_FINALIZER_info,0/*CC*/,,EI_)
 254 };
 255
 256 /* -----------------------------------------------------------------------------
 257    Foreign Objects are unlifted and therefore never entered.
 258    -------------------------------------------------------------------------- */
 259
 260 INFO_TABLE(FOREIGN_info,FOREIGN_entry,0,1,FOREIGN,const,EF_,0,0);
 261 NON_ENTERABLE_ENTRY_CODE(FOREIGN);
 262
 263 /* -----------------------------------------------------------------------------
 264    Stable Names are unlifted too.
 265    -------------------------------------------------------------------------- */
 266
 267 INFO_TABLE(STABLE_NAME_info,STABLE_NAME_entry,0,1,STABLE_NAME,const,EF_,0,0);
 268 NON_ENTERABLE_ENTRY_CODE(STABLE_NAME);
 269
 270 /* -----------------------------------------------------------------------------
 271    MVars
 272
 273    There are two kinds of these: full and empty.  We need an info table
 274    and entry code for each type.
 275    -------------------------------------------------------------------------- */
 276
 277 INFO_TABLE(FULL_MVAR_info,FULL_MVAR_entry,4,0,MVAR,const,EF_,0,0);
 278 NON_ENTERABLE_ENTRY_CODE(FULL_MVAR);
 279
 280 INFO_TABLE(EMPTY_MVAR_info,EMPTY_MVAR_entry,4,0,MVAR,const,EF_,0,0);
 281 NON_ENTERABLE_ENTRY_CODE(EMPTY_MVAR);
 282
 283 /* -----------------------------------------------------------------------------
 284    END_TSO_QUEUE
 285
 286    This is a static nullary constructor (like []) that we use to mark the
 287    end of a linked TSO queue.
 288    -------------------------------------------------------------------------- */
 289
 290 INFO_TABLE_CONSTR(END_TSO_QUEUE_info,END_TSO_QUEUE_entry,0,0,0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 291 NON_ENTERABLE_ENTRY_CODE(END_TSO_QUEUE);
 292
 293 SET_STATIC_HDR(END_TSO_QUEUE_closure,END_TSO_QUEUE_info,0/*CC*/,,EI_)
 294 };
 295
 296 /* -----------------------------------------------------------------------------
 297    Mutable lists
 298
 299    Mutable lists (used by the garbage collector) consist of a chain of
 300    StgMutClosures connected through their mut_link fields, ending in
 301    an END_MUT_LIST closure.
 302    -------------------------------------------------------------------------- */
 303
 304 INFO_TABLE_CONSTR(END_MUT_LIST_info,END_MUT_LIST_entry,0,0,0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 305 NON_ENTERABLE_ENTRY_CODE(END_MUT_LIST);
 306
 307 SET_STATIC_HDR(END_MUT_LIST_closure,END_MUT_LIST_info,0/*CC*/,,EI_)
 308 };
 309
 310 INFO_TABLE(MUT_CONS_info, MUT_CONS_entry, 1, 1, MUT_VAR, const, EF_, 0, 0);
 311 NON_ENTERABLE_ENTRY_CODE(MUT_CONS);
 312
 313 /* -----------------------------------------------------------------------------
 314    Arrays
 315
 316    These come in two basic flavours: arrays of data (StgArrWords) and arrays of
 317    pointers (StgArrPtrs).  They all have a similar layout:
 318
 319         ___________________________
 320         | Info | No. of | data....
 321         |  Ptr | Words  |
 322         ---------------------------
 323
 324    These are *unpointed* objects: i.e. they cannot be entered.
 325
 326    -------------------------------------------------------------------------- */
 327
 328 #define ArrayInfo(type)                                 \
 329 INFO_TABLE(type##_info, type##_entry, 0, 0, type, const, EF_,0,0);
 330
 331 ArrayInfo(ARR_WORDS);
 332 NON_ENTERABLE_ENTRY_CODE(ARR_WORDS);
 333 ArrayInfo(MUT_ARR_PTRS);
 334 NON_ENTERABLE_ENTRY_CODE(MUT_ARR_PTRS);
 335 ArrayInfo(MUT_ARR_PTRS_FROZEN);
 336 NON_ENTERABLE_ENTRY_CODE(MUT_ARR_PTRS_FROZEN);
 337
 338 #undef ArrayInfo
 339
 340 /* -----------------------------------------------------------------------------
 341    Mutable Variables
 342    -------------------------------------------------------------------------- */
 343
 344 INFO_TABLE(MUT_VAR_info, MUT_VAR_entry, 1, 1, MUT_VAR, const, EF_, 0, 0);
 345 NON_ENTERABLE_ENTRY_CODE(MUT_VAR);
 346
 347 /* -----------------------------------------------------------------------------
 348    Standard Error Entry.
 349
 350    This is used for filling in vector-table entries that can never happen,
 351    for instance.
 352    -------------------------------------------------------------------------- */
 353
 354 STGFUN(stg_error_entry)                                                 \
 355 {                                                                       \
 356   FB_                                                                   \
 357     STGCALL1(fflush,stdout);                                            \
 358     STGCALL2(fprintf,stderr,"fatal: stg_error_entry");                  \
 359     STGCALL1(raiseError, errorHandler);                                 \
 360     exit(EXIT_FAILURE); /* not executed */                              \
 361   FE_                                                                   \
 362 }
 363
 364 /* -----------------------------------------------------------------------------
 365    Dummy return closure
 366
 367    Entering this closure will just return to the address on the top of the
 368    stack.  Useful for getting a thread in a canonical form where we can
 369    just enter the top stack word to start the thread.  (see deleteThread)
 370  * -------------------------------------------------------------------------- */
 371
 372 INFO_TABLE(dummy_ret_info, dummy_ret_entry, 0, 0, CONSTR_NOCAF_STATIC, const, EF_, 0, 0);
 373 FN_(dummy_ret_entry)
 374 {
 375   W_ ret_addr;
 376   FB_
 377   ret_addr = Sp[0];
 378   Sp++;
 379   JMP_(ENTRY_CODE(ret_addr));
 380   FE_
 381 }
 382 SET_STATIC_HDR(dummy_ret_closure,dummy_ret_info,CCS_DONTZuCARE,,EI_)
 383 };
 384
 385 /* -----------------------------------------------------------------------------
 386    Standard Infotables (for use in interpreter)
 387    -------------------------------------------------------------------------- */
 388
 389 #ifdef INTERPRETER
 390
 391 STGFUN(Hugs_CONSTR_entry)
 392 {
 393     Sp -= 1;
 394     ((StgPtr*)Sp)[0] = R1.p;
 395     /* vectored: JMP_(RET_VEC(((StgPtr*)Sp)[1],constrTag(?))); */
 396     JMP_(ENTRY_CODE(((StgPtr*)Sp)[1]));
 397 }
 398
 399 #define RET_BCO_ENTRY_TEMPLATE(label)   \
 400    IFN_(label)                          \
 401    {                                    \
 402       FB_                               \
 403       Sp -= 1;                          \
 404       ((StgPtr*)Sp)[0] = R1.p;          \
 405       JMP_(stg_yield_to_Hugs);          \
 406       FE_                               \
 407    }
 408
 409 RET_BCO_ENTRY_TEMPLATE(ret_bco_entry  );
 410 RET_BCO_ENTRY_TEMPLATE(ret_bco_0_entry);
 411 RET_BCO_ENTRY_TEMPLATE(ret_bco_1_entry);
 412 RET_BCO_ENTRY_TEMPLATE(ret_bco_2_entry);
 413 RET_BCO_ENTRY_TEMPLATE(ret_bco_3_entry);
 414 RET_BCO_ENTRY_TEMPLATE(ret_bco_4_entry);
 415 RET_BCO_ENTRY_TEMPLATE(ret_bco_5_entry);
 416 RET_BCO_ENTRY_TEMPLATE(ret_bco_6_entry);
 417 RET_BCO_ENTRY_TEMPLATE(ret_bco_7_entry);
 418
 419 VEC_POLY_INFO_TABLE(ret_bco,0, NULL/*srt*/, 0/*srt_off*/, 0/*srt_len*/, RET_BCO);
 420
 421 #endif /* INTERPRETER */
 422
 423 #ifndef COMPILER
 424
 425 INFO_TABLE_CONSTR(Czh_con_info,Hugs_CONSTR_entry,0,sizeofW(StgChar),0,CONSTR,const,EF_,0,0);
 426 INFO_TABLE_CONSTR(Izh_con_info,Hugs_CONSTR_entry,0,sizeofW(StgInt),0,CONSTR,const,EF_,0,0);
 427 INFO_TABLE_CONSTR(I64zh_con_info,Hugs_CONSTR_entry,0,sizeofW(StgInt64),0,CONSTR,const,EF_,0,0);
 428 INFO_TABLE_CONSTR(Fzh_con_info,Hugs_CONSTR_entry,0,sizeofW(StgFloat),0,CONSTR,const,EF_,0,0);
 429 INFO_TABLE_CONSTR(Dzh_con_info,Hugs_CONSTR_entry,0,sizeofW(StgDouble),0,CONSTR,const,EF_,0,0);
 430 INFO_TABLE_CONSTR(Azh_con_info,Hugs_CONSTR_entry,0,sizeofW(StgAddr),0,CONSTR,const,EF_,0,0);
 431 INFO_TABLE_CONSTR(Wzh_con_info,Hugs_CONSTR_entry,0,sizeofW(StgWord),0,CONSTR,const,EF_,0,0);
 432 INFO_TABLE_CONSTR(StablePtr_con_info,Hugs_CONSTR_entry,0,sizeofW(StgStablePtr),0,CONSTR,const,EF_,0,0);
 433
 434 /* These might seem redundant but {I,C}zh_static_info are used in
 435  * {INT,CHAR}LIKE and the rest are used in RtsAPI.c
 436  */
 437 INFO_TABLE_CONSTR(Czh_static_info,Hugs_CONSTR_entry,0,sizeofW(StgChar),0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 438 INFO_TABLE_CONSTR(Izh_static_info,Hugs_CONSTR_entry,0,sizeofW(StgInt),0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 439 INFO_TABLE_CONSTR(I64zh_static_info,Hugs_CONSTR_entry,0,sizeofW(StgInt64),0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 440 INFO_TABLE_CONSTR(Fzh_static_info,Hugs_CONSTR_entry,0,sizeofW(StgFloat),0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 441 INFO_TABLE_CONSTR(Dzh_static_info,Hugs_CONSTR_entry,0,sizeofW(StgDouble),0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 442 INFO_TABLE_CONSTR(Azh_static_info,Hugs_CONSTR_entry,0,sizeofW(StgAddr),0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 443 INFO_TABLE_CONSTR(Wzh_static_info,Hugs_CONSTR_entry,0,sizeofW(StgWord),0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 444 INFO_TABLE_CONSTR(StablePtr_static_info,Hugs_CONSTR_entry,0,sizeofW(StgStablePtr),0,CONSTR_NOCAF_STATIC,const,EF_,0,0);
 445
 446 #endif /* !defined(COMPILER) */
 447
 448 /* -----------------------------------------------------------------------------
 449    CHARLIKE and INTLIKE closures.
 450
 451    These are static representations of Chars and small Ints, so that
 452    we can remove dynamic Chars and Ints during garbage collection and
 453    replace them with references to the static objects.
 454    -------------------------------------------------------------------------- */
 455
 456 #ifdef HAVE_WIN32_DLL_SUPPORT
 457 /*
 458  * When sticking the RTS in a DLL, we delay populating the
 459  * Charlike and Intlike tables until load-time, which is only
 460  * when we've got the real addresses to the C# and I# closures.
 461  *
 462  */
 463 static const StgInfoTable czh_static_info;
 464 static const StgInfoTable izh_static_info;
 465 #define Char_hash_static_info czh_static_info
 466 #define Int_hash_static_info izh_static_info
 467 #else
 468 #define Char_hash_static_info Czh_static_info
 469 #define Int_hash_static_info Izh_static_info
 470 #endif
 471
 472 #define CHARLIKE_HDR(n)                                         \
 473         {                                                       \
 474           STATIC_HDR(Char_hash_static_info, /* C# */            \
 475                          CCS_DONTZuCARE),                       \
 476           data : n                                              \
 477         }
 478
 479 #define INTLIKE_HDR(n)                                          \
 480         {                                                       \
 481           STATIC_HDR(Int_hash_static_info,  /* I# */            \
 482                          CCS_DONTZuCARE),                       \
 483           data : n                                              \
 484         }
 485
 486 /* put these in the *data* section, since the garbage collector relies
 487  * on the fact that static closures live in the data section.
 488  */
 489
 490 /* end the name with _closure, to convince the mangler this is a closure */
 491
 492 StgIntCharlikeClosure CHARLIKE_closure[] = {
 493     CHARLIKE_HDR(0),
 494     CHARLIKE_HDR(1),
 495     CHARLIKE_HDR(2),
 496     CHARLIKE_HDR(3),
 497     CHARLIKE_HDR(4),
 498     CHARLIKE_HDR(5),
 499     CHARLIKE_HDR(6),
 500     CHARLIKE_HDR(7),
 501     CHARLIKE_HDR(8),
 502     CHARLIKE_HDR(9),
 503     CHARLIKE_HDR(10),
 504     CHARLIKE_HDR(11),
 505     CHARLIKE_HDR(12),
 506     CHARLIKE_HDR(13),
 507     CHARLIKE_HDR(14),
 508     CHARLIKE_HDR(15),
 509     CHARLIKE_HDR(16),
 510     CHARLIKE_HDR(17),
 511     CHARLIKE_HDR(18),
 512     CHARLIKE_HDR(19),
 513     CHARLIKE_HDR(20),
 514     CHARLIKE_HDR(21),
 515     CHARLIKE_HDR(22),
 516     CHARLIKE_HDR(23),
 517     CHARLIKE_HDR(24),
 518     CHARLIKE_HDR(25),
 519     CHARLIKE_HDR(26),
 520     CHARLIKE_HDR(27),
 521     CHARLIKE_HDR(28),
 522     CHARLIKE_HDR(29),
 523     CHARLIKE_HDR(30),
 524     CHARLIKE_HDR(31),
 525     CHARLIKE_HDR(32),
 526     CHARLIKE_HDR(33),
 527     CHARLIKE_HDR(34),
 528     CHARLIKE_HDR(35),
 529     CHARLIKE_HDR(36),
 530     CHARLIKE_HDR(37),
 531     CHARLIKE_HDR(38),
 532     CHARLIKE_HDR(39),
 533     CHARLIKE_HDR(40),
 534     CHARLIKE_HDR(41),
 535     CHARLIKE_HDR(42),
 536     CHARLIKE_HDR(43),
 537     CHARLIKE_HDR(44),
 538     CHARLIKE_HDR(45),
 539     CHARLIKE_HDR(46),
 540     CHARLIKE_HDR(47),
 541     CHARLIKE_HDR(48),
 542     CHARLIKE_HDR(49),
 543     CHARLIKE_HDR(50),
 544     CHARLIKE_HDR(51),
 545     CHARLIKE_HDR(52),
 546     CHARLIKE_HDR(53),
 547     CHARLIKE_HDR(54),
 548     CHARLIKE_HDR(55),
 549     CHARLIKE_HDR(56),
 550     CHARLIKE_HDR(57),
 551     CHARLIKE_HDR(58),
 552     CHARLIKE_HDR(59),
 553     CHARLIKE_HDR(60),
 554     CHARLIKE_HDR(61),
 555     CHARLIKE_HDR(62),
 556     CHARLIKE_HDR(63),
 557     CHARLIKE_HDR(64),
 558     CHARLIKE_HDR(65),
 559     CHARLIKE_HDR(66),
 560     CHARLIKE_HDR(67),
 561     CHARLIKE_HDR(68),
 562     CHARLIKE_HDR(69),
 563     CHARLIKE_HDR(70),
 564     CHARLIKE_HDR(71),
 565     CHARLIKE_HDR(72),
 566     CHARLIKE_HDR(73),
 567     CHARLIKE_HDR(74),
 568     CHARLIKE_HDR(75),
 569     CHARLIKE_HDR(76),
 570     CHARLIKE_HDR(77),
 571     CHARLIKE_HDR(78),
 572     CHARLIKE_HDR(79),
 573     CHARLIKE_HDR(80),
 574     CHARLIKE_HDR(81),
 575     CHARLIKE_HDR(82),
 576     CHARLIKE_HDR(83),
 577     CHARLIKE_HDR(84),
 578     CHARLIKE_HDR(85),
 579     CHARLIKE_HDR(86),
 580     CHARLIKE_HDR(87),
 581     CHARLIKE_HDR(88),
 582     CHARLIKE_HDR(89),
 583     CHARLIKE_HDR(90),
 584     CHARLIKE_HDR(91),
 585     CHARLIKE_HDR(92),
 586     CHARLIKE_HDR(93),
 587     CHARLIKE_HDR(94),
 588     CHARLIKE_HDR(95),
 589     CHARLIKE_HDR(96),
 590     CHARLIKE_HDR(97),
 591     CHARLIKE_HDR(98),
 592     CHARLIKE_HDR(99),
 593     CHARLIKE_HDR(100),
 594     CHARLIKE_HDR(101),
 595     CHARLIKE_HDR(102),
 596     CHARLIKE_HDR(103),
 597     CHARLIKE_HDR(104),
 598     CHARLIKE_HDR(105),
 599     CHARLIKE_HDR(106),
 600     CHARLIKE_HDR(107),
 601     CHARLIKE_HDR(108),
 602     CHARLIKE_HDR(109),
 603     CHARLIKE_HDR(110),
 604     CHARLIKE_HDR(111),
 605     CHARLIKE_HDR(112),
 606     CHARLIKE_HDR(113),
 607     CHARLIKE_HDR(114),
 608     CHARLIKE_HDR(115),
 609     CHARLIKE_HDR(116),
 610     CHARLIKE_HDR(117),
 611     CHARLIKE_HDR(118),
 612     CHARLIKE_HDR(119),
 613     CHARLIKE_HDR(120),
 614     CHARLIKE_HDR(121),
 615     CHARLIKE_HDR(122),
 616     CHARLIKE_HDR(123),
 617     CHARLIKE_HDR(124),
 618     CHARLIKE_HDR(125),
 619     CHARLIKE_HDR(126),
 620     CHARLIKE_HDR(127),
 621     CHARLIKE_HDR(128),
 622     CHARLIKE_HDR(129),
 623     CHARLIKE_HDR(130),
 624     CHARLIKE_HDR(131),
 625     CHARLIKE_HDR(132),
 626     CHARLIKE_HDR(133),
 627     CHARLIKE_HDR(134),
 628     CHARLIKE_HDR(135),
 629     CHARLIKE_HDR(136),
 630     CHARLIKE_HDR(137),
 631     CHARLIKE_HDR(138),
 632     CHARLIKE_HDR(139),
 633     CHARLIKE_HDR(140),
 634     CHARLIKE_HDR(141),
 635     CHARLIKE_HDR(142),
 636     CHARLIKE_HDR(143),
 637     CHARLIKE_HDR(144),
 638     CHARLIKE_HDR(145),
 639     CHARLIKE_HDR(146),
 640     CHARLIKE_HDR(147),
 641     CHARLIKE_HDR(148),
 642     CHARLIKE_HDR(149),
 643     CHARLIKE_HDR(150),
 644     CHARLIKE_HDR(151),
 645     CHARLIKE_HDR(152),
 646     CHARLIKE_HDR(153),
 647     CHARLIKE_HDR(154),
 648     CHARLIKE_HDR(155),
 649     CHARLIKE_HDR(156),
 650     CHARLIKE_HDR(157),
 651     CHARLIKE_HDR(158),
 652     CHARLIKE_HDR(159),
 653     CHARLIKE_HDR(160),
 654     CHARLIKE_HDR(161),
 655     CHARLIKE_HDR(162),
 656     CHARLIKE_HDR(163),
 657     CHARLIKE_HDR(164),
 658     CHARLIKE_HDR(165),
 659     CHARLIKE_HDR(166),
 660     CHARLIKE_HDR(167),
 661     CHARLIKE_HDR(168),
 662     CHARLIKE_HDR(169),
 663     CHARLIKE_HDR(170),
 664     CHARLIKE_HDR(171),
 665     CHARLIKE_HDR(172),
 666     CHARLIKE_HDR(173),
 667     CHARLIKE_HDR(174),
 668     CHARLIKE_HDR(175),
 669     CHARLIKE_HDR(176),
 670     CHARLIKE_HDR(177),
 671     CHARLIKE_HDR(178),
 672     CHARLIKE_HDR(179),
 673     CHARLIKE_HDR(180),
 674     CHARLIKE_HDR(181),
 675     CHARLIKE_HDR(182),
 676     CHARLIKE_HDR(183),
 677     CHARLIKE_HDR(184),
 678     CHARLIKE_HDR(185),
 679     CHARLIKE_HDR(186),
 680     CHARLIKE_HDR(187),
 681     CHARLIKE_HDR(188),
 682     CHARLIKE_HDR(189),
 683     CHARLIKE_HDR(190),
 684     CHARLIKE_HDR(191),
 685     CHARLIKE_HDR(192),
 686     CHARLIKE_HDR(193),
 687     CHARLIKE_HDR(194),
 688     CHARLIKE_HDR(195),
 689     CHARLIKE_HDR(196),
 690     CHARLIKE_HDR(197),
 691     CHARLIKE_HDR(198),
 692     CHARLIKE_HDR(199),
 693     CHARLIKE_HDR(200),
 694     CHARLIKE_HDR(201),
 695     CHARLIKE_HDR(202),
 696     CHARLIKE_HDR(203),
 697     CHARLIKE_HDR(204),
 698     CHARLIKE_HDR(205),
 699     CHARLIKE_HDR(206),
 700     CHARLIKE_HDR(207),
 701     CHARLIKE_HDR(208),
 702     CHARLIKE_HDR(209),
 703     CHARLIKE_HDR(210),
 704     CHARLIKE_HDR(211),
 705     CHARLIKE_HDR(212),
 706     CHARLIKE_HDR(213),
 707     CHARLIKE_HDR(214),
 708     CHARLIKE_HDR(215),
 709     CHARLIKE_HDR(216),
 710     CHARLIKE_HDR(217),
 711     CHARLIKE_HDR(218),
 712     CHARLIKE_HDR(219),
 713     CHARLIKE_HDR(220),
 714     CHARLIKE_HDR(221),
 715     CHARLIKE_HDR(222),
 716     CHARLIKE_HDR(223),
 717     CHARLIKE_HDR(224),
 718     CHARLIKE_HDR(225),
 719     CHARLIKE_HDR(226),
 720     CHARLIKE_HDR(227),
 721     CHARLIKE_HDR(228),
 722     CHARLIKE_HDR(229),
 723     CHARLIKE_HDR(230),
 724     CHARLIKE_HDR(231),
 725     CHARLIKE_HDR(232),
 726     CHARLIKE_HDR(233),
 727     CHARLIKE_HDR(234),
 728     CHARLIKE_HDR(235),
 729     CHARLIKE_HDR(236),
 730     CHARLIKE_HDR(237),
 731     CHARLIKE_HDR(238),
 732     CHARLIKE_HDR(239),
 733     CHARLIKE_HDR(240),
 734     CHARLIKE_HDR(241),
 735     CHARLIKE_HDR(242),
 736     CHARLIKE_HDR(243),
 737     CHARLIKE_HDR(244),
 738     CHARLIKE_HDR(245),
 739     CHARLIKE_HDR(246),
 740     CHARLIKE_HDR(247),
 741     CHARLIKE_HDR(248),
 742     CHARLIKE_HDR(249),
 743     CHARLIKE_HDR(250),
 744     CHARLIKE_HDR(251),
 745     CHARLIKE_HDR(252),
 746     CHARLIKE_HDR(253),
 747     CHARLIKE_HDR(254),
 748     CHARLIKE_HDR(255)
 749 };
 750
 751 StgIntCharlikeClosure INTLIKE_closure[] = {
 752     INTLIKE_HDR(-16),   /* MIN_INTLIKE == -16 */
 753     INTLIKE_HDR(-15),
 754     INTLIKE_HDR(-14),
 755     INTLIKE_HDR(-13),
 756     INTLIKE_HDR(-12),
 757     INTLIKE_HDR(-11),
 758     INTLIKE_HDR(-10),
 759     INTLIKE_HDR(-9),
 760     INTLIKE_HDR(-8),
 761     INTLIKE_HDR(-7),
 762     INTLIKE_HDR(-6),
 763     INTLIKE_HDR(-5),
 764     INTLIKE_HDR(-4),
 765     INTLIKE_HDR(-3),
 766     INTLIKE_HDR(-2),
 767     INTLIKE_HDR(-1),
 768     INTLIKE_HDR(0),
 769     INTLIKE_HDR(1),
 770     INTLIKE_HDR(2),
 771     INTLIKE_HDR(3),
 772     INTLIKE_HDR(4),
 773     INTLIKE_HDR(5),
 774     INTLIKE_HDR(6),
 775     INTLIKE_HDR(7),
 776     INTLIKE_HDR(8),
 777     INTLIKE_HDR(9),
 778     INTLIKE_HDR(10),
 779     INTLIKE_HDR(11),
 780     INTLIKE_HDR(12),
 781     INTLIKE_HDR(13),
 782     INTLIKE_HDR(14),
 783     INTLIKE_HDR(15),
 784     INTLIKE_HDR(16)     /* MAX_INTLIKE == 16 */
 785 };