* included in the distribution.
*
* $RCSfile: compiler.c,v $
- * $Revision: 1.12 $
- * $Date: 1999/11/12 17:32:37 $
+ * $Revision: 1.22 $
+ * $Date: 2000/03/13 11:37:16 $
* ------------------------------------------------------------------------*/
#include "prelude.h"
#include "storage.h"
-#include "backend.h"
#include "connect.h"
#include "errors.h"
+
#include "Rts.h" /* for rts_eval and related stuff */
#include "RtsAPI.h" /* for rts_eval and related stuff */
#include "SchedAPI.h" /* for RevertCAFs */
#include "Schedule.h"
-#include "link.h"
-
-Addr inputCode; /* Addr of compiled code for expr */
-static Name currentName; /* Top level name being processed */
-#if DEBUG_CODE
-Bool debugCode = FALSE; /* TRUE => print G-code to screen */
-#endif
-
-
/* --------------------------------------------------------------------------
* Local function prototypes:
* ------------------------------------------------------------------------*/
-static Cell local translate Args((Cell));
-static Void local transPair Args((Pair));
-static Void local transTriple Args((Triple));
-static Void local transAlt Args((Cell));
-static Void local transCase Args((Cell));
-static List local transBinds Args((List));
-static Cell local transRhs Args((Cell));
-static Cell local mkConsList Args((List));
-static Cell local expandLetrec Args((Cell));
-static Cell local transComp Args((Cell,List,Cell));
-static Cell local transDo Args((Cell,Cell,List));
-static Cell local transConFlds Args((Cell,List));
-static Cell local transUpdFlds Args((Cell,List,List));
-
-static Cell local refutePat Args((Cell));
-static Cell local refutePatAp Args((Cell));
-static Cell local matchPat Args((Cell));
-static List local remPat Args((Cell,Cell,List));
-static List local remPat1 Args((Cell,Cell,List));
-
-static Cell local pmcTerm Args((Int,List,Cell));
-static Cell local pmcPair Args((Int,List,Pair));
-static Cell local pmcTriple Args((Int,List,Triple));
-static Cell local pmcVar Args((List,Text));
-static Void local pmcLetrec Args((Int,List,Pair));
-static Cell local pmcVarDef Args((Int,List,List));
-static Void local pmcFunDef Args((Int,List,Triple));
-static List local altsMatch Args((Int,Int,List,List));
-static Cell local match Args((Int,List));
-static Cell local joinMas Args((Int,List));
-static Bool local canFail Args((Cell));
-static List local addConTable Args((Cell,Cell,List));
-static Void local advance Args((Int,Int,Cell));
-static Bool local emptyMatch Args((Cell));
-static Cell local maDiscr Args((Cell));
-static Bool local isNumDiscr Args((Cell));
-static Bool local eqNumDiscr Args((Cell,Cell));
+static Cell local translate ( Cell );
+static Void local transPair ( Pair );
+static Void local transTriple ( Triple );
+static Void local transAlt ( Cell );
+static Void local transCase ( Cell );
+static List local transBinds ( List );
+static Cell local transRhs ( Cell );
+static Cell local mkConsList ( List );
+static Cell local expandLetrec ( Cell );
+static Cell local transComp ( Cell,List,Cell );
+static Cell local transDo ( Cell,Cell,List );
+static Cell local transConFlds ( Cell,List );
+static Cell local transUpdFlds ( Cell,List,List );
+
+static Cell local refutePat ( Cell );
+static Cell local refutePatAp ( Cell );
+static Cell local matchPat ( Cell );
+static List local remPat ( Cell,Cell,List );
+static List local remPat1 ( Cell,Cell,List );
+
+static Cell local pmcTerm ( Int,List,Cell );
+static Cell local pmcPair ( Int,List,Pair );
+static Cell local pmcTriple ( Int,List,Triple );
+static Cell local pmcVar ( List,Text );
+static Void local pmcLetrec ( Int,List,Pair );
+static Cell local pmcVarDef ( Int,List,List );
+static Void local pmcFunDef ( Int,List,Triple );
+static List local altsMatch ( Int,Int,List,List );
+static Cell local match ( Int,List );
+static Cell local joinMas ( Int,List );
+static Bool local canFail ( Cell );
+static List local addConTable ( Cell,Cell,List );
+static Void local advance ( Int,Int,Cell );
+static Bool local emptyMatch ( Cell );
+static Cell local maDiscr ( Cell );
+static Bool local isNumDiscr ( Cell );
+static Bool local eqNumDiscr ( Cell,Cell );
#if TREX
-static Bool local isExtDiscr Args((Cell));
-static Bool local eqExtDiscr Args((Cell,Cell));
+static Bool local isExtDiscr ( Cell );
+static Bool local eqExtDiscr ( Cell,Cell );
#endif
-static Void local compileGlobalFunction Args((Pair));
-static Void local compileGenFunction Args((Name));
-static Name local compileSelFunction Args((Pair));
-static List local addStgVar Args((List,Pair));
+static Void local compileGlobalFunction ( Pair );
+static Void local compileGenFunction ( Name );
+static Name local compileSelFunction ( Pair );
+static List local addStgVar ( List,Pair );
+static Name currentName; /* Top level name being processed */
/* --------------------------------------------------------------------------
* Translation: Convert input expressions into a less complex language
static Cell local translate(e) /* Translate expression: */
Cell e; {
+#if 0
+ printf ( "translate: " );print(e,100);printf("\n");
+#endif
switch (whatIs(e)) {
case LETREC : snd(snd(e)) = translate(snd(snd(e)));
return expandLetrec(e);
nv));
}
- default : fprintf(stderr, "stuff=%d\n",whatIs(e));internal("translate");
+ default : fprintf(stderr, "stuff=%d\n",whatIs(e));
+ internal("translate");
}
return e;
}
static Void local transAlt(e) /* Translate alt: */
Cell e; { /* ([Pat], Rhs) ==> ([Pat], Rhs') */
+#if 0
+ printf ( "transAlt: " );print(snd(e),100);printf("\n");
+#endif
snd(e) = transRhs(snd(e));
}
case STRCELL :
case CHARCELL :
-#if NPLUSK
case ADDPAT :
-#endif
case TUPLE :
case NAME : return pat;
Cell h = getHead(p);
if (h==nameFromInt || h==nameFromInteger || h==nameFromDouble)
return p;
-#if NPLUSK
else if (whatIs(h)==ADDPAT)
return ap(fun(p),refutePat(arg(p)));
-#endif
#if TREX
else if (isExt(h)) {
Cell pf = refutePat(extField(p));
if (h==nameFromInt ||
h==nameFromInteger || h==nameFromDouble)
return WILDCARD;
-#if NPLUSK
else if (whatIs(h)==ADDPAT)
return pat;
-#endif
#if TREX
else if (isExt(h)) {
Cell pf = matchPat(extField(pat));
return remPat(snd(pat),nv,lds);
}
-#if NPLUSK
case ADDPAT : return remPat1(arg(pat), /* n + k = expr */
ap(ap(ap(namePmSub,
arg(fun(pat))),
mkInt(snd(fun(fun(pat))))),
expr),
lds);
-#endif
case FINLIST : return remPat1(mkConsList(snd(pat)),expr,lds);
case AP : return pmcPair(co,sc,e);
-#if NPLUSK
case ADDPAT :
-#endif
#if TREX
case EXT :
#endif
Cell h = getHead(p);
switch (whatIs(h)) {
case CONFLDS : return fst(snd(p));
-#if NPLUSK
case ADDPAT : arg(fun(p)) = translate(arg(fun(p)));
return fun(p);
-#endif
#if TREX
case EXT : h = fun(fun(p));
arg(h) = translate(arg(h));
case CHARCELL : return 0;
#if TREX
case AP : switch (whatIs(fun(d))) {
-#if NPLUSK
case ADDPAT : return 1;
-#endif
case EXT : return 2;
default : return 0;
}
#else
-#if NPLUSK
case AP : return (whatIs(fun(d))==ADDPAT) ? 1 : 0;
-#else
- case AP : return 0; /* must be an Int or Float lit */
-#endif
#endif
}
internal("discrArity");
static Bool local eqNumDiscr(d1,d2) /* Determine whether two numeric */
Cell d1, d2; { /* descriptors have same value */
-#if NPLUSK
if (whatIs(fun(d1))==ADDPAT)
return whatIs(fun(d2))==ADDPAT && snd(fun(d1))==snd(fun(d2));
-#endif
if (isInt(arg(d1)))
return isInt(arg(d2)) && intOf(arg(d1))==intOf(arg(d2));
if (isFloat(arg(d1)))
signal(SIGINT, eval_ctrlbrk);
}
-Void evalExp() { /* compile and run input expression */
+Void evalExp ( void ) { /* compile and run input expression */
/* ToDo: this name (and other names generated during pattern match?)
* get inserted in the symbol table but never get removed.
*/
/* Run thread (and any other runnable threads) */
/* Re-initialise the scheduler - ToDo: do I need this? */
- initScheduler();
+ /* JRS, 991118: on SM's advice, don't call initScheduler every time.
+ This causes an assertion failure in GC.c(revert_dead_cafs)
+ unless doRevertCAFs below is permanently TRUE.
+ */
+ /* initScheduler(); */
#ifdef CRUDE_PROFILING
cp_init();
#endif
- /* ToDo: don't really initScheduler every time. fix */
{
HaskellObj result; /* ignored */
sighandler_t old_ctrlbrk;
SchedulerStatus status;
- Bool doRevertCAFs = FALSE;
+ Bool doRevertCAFs = TRUE; /* do not change -- comment above */
old_ctrlbrk = signal(SIGINT, eval_ctrlbrk);
ASSERT(old_ctrlbrk != SIG_ERR);
status = rts_eval_(closureOfVar(v),10000,&result);
fflush (stdout);
switch (status) {
case Deadlock:
- case AllBlocked: /* I don't understand the distinction - ADR */
- printf("{Deadlock}");
+ printf("{Deadlock or Blackhole}");
if (doRevertCAFs) RevertCAFs();
break;
case Interrupted:
default:
internal("evalExp: Unrecognised SchedulerStatus");
}
+ deleteAllThreads();
fflush(stdout);
fflush(stderr);
}
Target i = 0;
List binds = NIL;
- /* a nasty hack. But I don't know an easier way to make */
- /* these things appear. */
- if (lastModule() == modulePrelude) {
- implementCfun ( nameCons, NIL );
- implementCfun ( nameNil, NIL );
- implementCfun ( nameUnit, NIL );
- }
-
{
List vss;
List vs;
Name n; { /* generated function */
List defs = name(n).defn;
Int arity = length(fst(hd(defs)));
+#if 0
+ printf ( "compGenFn: " );print(defs,100);printf("\n");
+#endif
compiler(RESET);
currentName = n;
mapProc(transAlt,defs);
Void compiler(what)
Int what; {
switch (what) {
- case INSTALL :
+ case PREPREL :
case RESET : freeVars = NIL;
freeFuns = NIL;
freeBegin = mkOffset(0);
- //extraVars = NIL;
- //numExtraVars = 0;
- //localOffset = 0;
- //localArity = 0;
break;
case MARK : mark(freeVars);
mark(freeFuns);
- //mark(extraVars);
break;
+
+ case POSTPREL: break;
}
}
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