1 /*-------------------------------------------------------------------------
2 SDCCsymt.c - Code file for Symbols table related structures and MACRO's.
3 Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published by the
7 Free Software Foundation; either version 2, or (at your option) any
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 In other words, you are welcome to use, share and improve this program.
20 You are forbidden to forbid anyone else to use, share and improve
21 what you give them. Help stamp out software-hoarding!
22 -------------------------------------------------------------------------*/
26 #define ENABLE_MICHAELH_REGPARM_HACK 0
28 bucket *SymbolTab [256] ; /* the symbol table */
29 bucket *StructTab [256] ; /* the structure table */
30 bucket *TypedefTab[256] ; /* the typedef table */
31 bucket *LabelTab [256] ; /* the Label table */
32 bucket *enumTab [256] ; /* enumerated table */
34 extern struct set *publics;
36 /*------------------------------------------------------------------*/
37 /* initSymt () - initialises symbol table related stuff */
38 /*------------------------------------------------------------------*/
43 for ( i = 0 ; i < 256 ; i++ )
44 SymbolTab[i] = StructTab[i] = (void *) NULL ;
48 /*-----------------------------------------------------------------*/
49 /* newBucket - allocates & returns a new bucket */
50 /*-----------------------------------------------------------------*/
55 ALLOC(bp,sizeof(bucket));
60 /*-----------------------------------------------------------------*/
61 /* hashKey - computes the hashkey given a symbol name */
62 /*-----------------------------------------------------------------*/
65 unsigned long key = 0;
72 /*-----------------------------------------------------------------*/
73 /* addSym - adds a symbol to the hash Table */
74 /*-----------------------------------------------------------------*/
75 void addSym ( bucket **stab ,
81 int i ; /* index into the hash Table */
82 bucket *bp ; /* temp bucket * */
84 /* the symbols are always added at the head of the list */
86 /* get a free entry */
87 ALLOC(bp,sizeof(bucket));
89 bp->sym = sym ; /* update the symbol pointer */
90 bp->level = level; /* update the nest level */
92 strcpy(bp->name,sname); /* copy the name into place */
94 /* if this is the first entry */
95 if (stab[i] == NULL) {
96 bp->prev = bp->next = (void *) NULL ; /* point to nothing */
99 /* not first entry then add @ head of list */
108 /*-----------------------------------------------------------------*/
109 /* deleteSym - deletes a symbol from the hash Table entry */
110 /*-----------------------------------------------------------------*/
111 void deleteSym ( bucket **stab, void *sym, char *sname)
119 /* find the symbol */
121 if (bp->sym == sym) /* found it then break out */
122 break ; /* of the loop */
126 if (!bp) /* did not find it */
128 /* if this is the first one in the chain */
131 if ( stab[i] ) /* if chain ! empty */
132 stab[i]->prev = (void *) NULL ;
134 /* middle || end of chain */
136 if ( bp->next ) /* if not end of chain */
137 bp->next->prev = bp->prev ;
139 bp->prev->next = bp->next ;
144 /*-----------------------------------------------------------------*/
145 /* findSym - finds a symbol in a table */
146 /*-----------------------------------------------------------------*/
147 void *findSym ( bucket **stab, void *sym, char *sname)
151 bp = stab[hashKey(sname)] ;
154 if ( bp->sym == sym || strcmp (bp->name,sname) == 0 )
159 return ( bp ? bp->sym : (void *) NULL ) ;
162 /*-----------------------------------------------------------------*/
163 /* findSymWithLevel - finds a symbol with a name & level */
164 /*-----------------------------------------------------------------*/
165 void *findSymWithLevel ( bucket **stab, symbol *sym)
169 bp = stab[hashKey(sym->name)];
172 ** do the search from the head of the list since the
173 ** elements are added at the head it is ensured that
174 ** we will find the deeper definitions before we find
175 ** the global ones. we need to check for symbols with
176 ** level <= to the level given, if levels match then block
177 ** numbers need to match as well
181 if ( strcmp(bp->name,sym->name) == 0 && bp->level <= sym->level) {
182 /* if this is parameter then nothing else need to be checked */
183 if (((symbol *)(bp->sym))->_isparm)
185 /* if levels match then block numbers hsould also match */
186 if (bp->level && bp->level == sym->level && bp->block == sym->block )
188 /* if levels don't match then we are okay */
189 if (bp->level && bp->level != sym->level)
191 /* if this is a global variable then we are ok too */
199 return (void *) NULL ;
202 /*-----------------------------------------------------------------*/
203 /* findSymWithBlock - finds a symbol with name in with a block */
204 /*-----------------------------------------------------------------*/
205 void *findSymWithBlock ( bucket **stab, symbol *sym, int block)
209 bp = stab[hashKey(sym->name)] ;
212 if ( strcmp (bp->name,sym->name) == 0 &&
218 return ( bp ? bp->sym : (void *) NULL ) ;
221 /*------------------------------------------------------------------*/
222 /* newSymbol () - returns a new pointer to a symbol */
223 /*------------------------------------------------------------------*/
224 symbol *newSymbol (char *name, int scope )
228 ALLOC(sym,sizeof(symbol));
230 strcpy(sym->name,name); /* copy the name */
231 sym->level = scope ; /* set the level */
232 sym->block = currBlockno ;
233 sym->lineDef = yylineno ; /* set the line number */
237 /*------------------------------------------------------------------*/
238 /* newLink - creates a new link (declarator,specifier) */
239 /*------------------------------------------------------------------*/
244 ALLOC(p,sizeof(link));
249 /*------------------------------------------------------------------*/
250 /* newStruct - creats a new structdef from the free list */
251 /*------------------------------------------------------------------*/
252 structdef *newStruct ( char *tag )
256 ALLOC(s,sizeof(structdef));
258 strcpy(s->tag,tag) ; /* copy the tag */
262 /*------------------------------------------------------------------*/
263 /* pointerTypes - do the computation for the pointer types */
264 /*------------------------------------------------------------------*/
265 void pointerTypes (link *ptr, link *type)
270 /* find the first pointer type */
271 while (ptr && !IS_PTR(ptr))
274 /* could not find it */
275 if (!ptr || IS_SPEC(ptr) ||
276 DCL_TYPE(ptr) != UPOINTER)
279 /* change the pointer type depending on the
280 storage class of the type */
282 DCL_PTR_CONST(ptr) = SPEC_CONST(type);
283 DCL_PTR_VOLATILE(ptr) = SPEC_VOLATILE(type);
284 switch (SPEC_SCLS(type)) {
286 DCL_TYPE(ptr) = FPOINTER;
289 DCL_TYPE(ptr) = IPOINTER ;
292 DCL_TYPE(ptr) = PPOINTER ;
295 DCL_TYPE(ptr) = POINTER ;
298 DCL_PTR_CONST(ptr) = port->mem.code_ro;
299 DCL_TYPE(ptr) = CPOINTER ;
302 DCL_TYPE(ptr) = EEPPOINTER;
305 DCL_TYPE(ptr) = GPOINTER;
308 /* the storage class of type ends here */
311 SPEC_VOLATILE(type) = 0;
314 /* now change all the remaining unknown pointers
315 to generic pointers */
317 if (!IS_SPEC(ptr) && DCL_TYPE(ptr) == UPOINTER)
318 DCL_TYPE(ptr) = GPOINTER;
322 /* same for the type although it is highly unlikely that
323 type will have a pointer */
325 if (!IS_SPEC(type) && DCL_TYPE(type) == UPOINTER)
326 DCL_TYPE(type) = GPOINTER;
332 /*------------------------------------------------------------------*/
333 /* addDecl - adds a declarator @ the end of a chain */
334 /*------------------------------------------------------------------*/
335 void addDecl ( symbol *sym, int type , link *p )
341 /* if we are passed a link then set head & tail */
348 head = tail = newLink() ;
349 DCL_TYPE(head) = type ;
352 /* if this is the first entry */
358 if ( IS_SPEC(sym->etype) && IS_SPEC(head) && head == tail ) {
359 sym->etype = mergeSpec(sym->etype,head);
362 if ( IS_SPEC(sym->etype) && !IS_SPEC(head) && head == tail ) {
364 while (t->next != sym->etype) t = t->next ;
366 tail->next = sym->etype;
368 sym->etype->next = head;
374 /* if the type is a unknown pointer and has
375 a tspec then take the storage class const & volatile
376 attribute from the tspec & make it those of this
380 DCL_TYPE(p) == UPOINTER &&
382 if (!IS_SPEC(sym->etype)) {
383 sym->etype = sym->etype->next = newLink();
384 sym->etype->class = SPECIFIER;
386 SPEC_SCLS(sym->etype) = SPEC_SCLS(DCL_TSPEC(p));
387 SPEC_CONST(sym->etype) = SPEC_CONST(DCL_TSPEC(p));
388 SPEC_VOLATILE(sym->etype) = SPEC_VOLATILE(DCL_TSPEC(p));
394 /*------------------------------------------------------------------*/
395 /* mergeSpec - merges two specifiers and returns the new one */
396 /*------------------------------------------------------------------*/
397 link *mergeSpec ( link *dest, link *src )
399 /* if noun different then src overrides */
400 if ( SPEC_NOUN(dest) != SPEC_NOUN(src) && !SPEC_NOUN(dest))
401 SPEC_NOUN(dest) = SPEC_NOUN(src) ;
403 if (! SPEC_SCLS(dest)) /* if destination has no storage class */
404 SPEC_SCLS(dest) = SPEC_SCLS(src) ;
406 /* copy all the specifications */
407 SPEC_LONG(dest) |= SPEC_LONG(src);
408 SPEC_SHORT(dest) |= SPEC_SHORT(src);
409 SPEC_USIGN(dest) |= SPEC_USIGN(src);
410 SPEC_STAT(dest) |= SPEC_STAT(src);
411 SPEC_EXTR(dest) |= SPEC_EXTR(src);
412 SPEC_ABSA(dest) |= SPEC_ABSA(src);
413 SPEC_RENT(dest) |= SPEC_RENT(src);
414 SPEC_INTN(dest) |= SPEC_INTN(src);
415 SPEC_BANK(dest) |= SPEC_BANK(src);
416 SPEC_VOLATILE(dest) |= SPEC_VOLATILE(src);
417 SPEC_CRTCL(dest) |= SPEC_CRTCL(src);
418 SPEC_ADDR(dest) |= SPEC_ADDR(src);
419 SPEC_OCLS(dest) = SPEC_OCLS(src);
420 SPEC_BLEN(dest) |= SPEC_BLEN(src);
421 SPEC_BSTR(dest) |= SPEC_BSTR(src);
422 SPEC_TYPEDEF(dest) |= SPEC_TYPEDEF(src);
424 if ( IS_STRUCT(dest) && SPEC_STRUCT(dest) == NULL )
425 SPEC_STRUCT(dest) = SPEC_STRUCT(src);
430 /*------------------------------------------------------------------*/
431 /* cloneSpec - copies the entire spec and returns a new spec */
432 /*------------------------------------------------------------------*/
433 link *cloneSpec ( link *src )
437 /* go thru chain till we find the specifier */
438 while ( src && src->class != SPECIFIER )
442 memcpy (spec,src,sizeof(link));
446 /*------------------------------------------------------------------*/
447 /* genSymName - generates and returns a name used for anonymous vars*/
448 /*------------------------------------------------------------------*/
449 char *genSymName ( int level )
451 static int gCount = 0 ;
452 static char gname[SDCC_NAME_MAX+1] ;
454 sprintf (gname,"__%04d%04d",level,gCount++);
458 /*------------------------------------------------------------------*/
459 /* getSpec - returns the specifier part from a declaration chain */
460 /*------------------------------------------------------------------*/
461 link *getSpec ( link *p )
466 while ( p && ! (IS_SPEC(p)))
472 /*------------------------------------------------------------------*/
473 /* newCharLink() - creates an int type */
474 /*------------------------------------------------------------------*/
480 p->class = SPECIFIER ;
481 SPEC_NOUN(p) = V_CHAR ;
486 /*------------------------------------------------------------------*/
487 /* newFloatLink - a new Float type */
488 /*------------------------------------------------------------------*/
494 p->class = SPECIFIER ;
495 SPEC_NOUN(p) = V_FLOAT ;
500 /*------------------------------------------------------------------*/
501 /* newLongLink() - new long type */
502 /*------------------------------------------------------------------*/
508 p->class = SPECIFIER ;
509 SPEC_NOUN(p) = V_INT ;
515 /*------------------------------------------------------------------*/
516 /* newIntLink() - creates an int type */
517 /*------------------------------------------------------------------*/
523 p->class = SPECIFIER ;
524 SPEC_NOUN(p) = V_INT ;
529 /*------------------------------------------------------------------*/
530 /* getSize - returns size of a type chain in bits */
531 /*------------------------------------------------------------------*/
532 unsigned int getSize ( link *p )
534 /* if nothing return 0 */
537 if ( IS_SPEC(p) ) { /* if this is the specifier then */
538 switch (SPEC_NOUN(p)) { /* depending on the specifier type */
540 return (IS_LONG(p) ? LONGSIZE : ( IS_SHORT(p) ? SHORTSIZE: INTSIZE)) ;
548 return SPEC_STRUCT(p)->size ;
554 return ((SPEC_BLEN(p) / 8) + (SPEC_BLEN(p) % 8 ? 1 : 0)) ;
560 /* this is a specifier */
561 switch (DCL_TYPE(p)) {
565 return DCL_ELEM(p) * getSize (p->next) ;
582 /*------------------------------------------------------------------*/
583 /* bitsForType - returns # of bits required to store this type */
584 /*------------------------------------------------------------------*/
585 unsigned int bitsForType ( link *p )
587 /* if nothing return 0 */
591 if ( IS_SPEC(p) ) { /* if this is the specifier then */
593 switch (SPEC_NOUN(p)) { /* depending on the specifier type */
595 return (IS_LONG(p) ? LONGSIZE*8 : ( IS_SHORT(p) ? SHORTSIZE*8: INTSIZE*8)) ;
603 return SPEC_STRUCT(p)->size*8 ;
615 /* this is a specifier */
616 switch (DCL_TYPE(p)) {
620 return DCL_ELEM(p) * getSize (p->next) *8 ;
624 return ( PTRSIZE * 8) ;
628 return ( FPTRSIZE * 8);
630 return ( GPTRSIZE * 8);
637 /*------------------------------------------------------------------*/
638 /* copySymbolChain - copies a symbol chain */
639 /*------------------------------------------------------------------*/
640 symbol *copySymbolChain (symbol *src)
647 dest = copySymbol(src);
648 dest->next = copySymbolChain(src->next);
652 /*------------------------------------------------------------------*/
653 /* copySymbol - makes a copy of a symbol */
654 /*------------------------------------------------------------------*/
655 symbol *copySymbol (symbol *src)
662 dest = newSymbol( src->name, src->level );
663 memcpy(dest,src,sizeof(symbol));
664 dest->level = src->level ;
665 dest->block = src->block ;
666 dest->ival = copyIlist(src->ival);
667 dest->type = copyLinkChain(src->type);
668 dest->etype= getSpec(dest->type);
670 dest->args = copyValueChain (src->args);
671 dest->key = src->key;
672 dest->calleeSave = src->calleeSave;
673 dest->allocreq = src->allocreq;
677 /*------------------------------------------------------------------*/
678 /* reverseSyms - reverses the links for a symbol chain */
679 /*------------------------------------------------------------------*/
680 symbol *reverseSyms ( symbol *sym)
682 symbol *prev , *curr, *next ;
697 sym->next = (void *) NULL ;
701 /*------------------------------------------------------------------*/
702 /* reverseLink - reverses the links for a type chain */
703 /*------------------------------------------------------------------*/
704 link *reverseLink ( link *type)
706 link *prev , *curr, *next ;
721 type->next = (void *) NULL ;
725 /*------------------------------------------------------------------*/
726 /* addSymChain - adds a symbol chain to the symboltable */
727 /*------------------------------------------------------------------*/
728 void addSymChain ( symbol *symHead )
730 symbol *sym = symHead ;
731 symbol *csym = NULL ;
733 for (;sym != NULL ; sym = sym->next ) {
735 /* if already exists in the symbol table then check if
736 the previous was an extern definition if yes then
737 then check if the type match, if the types match then
738 delete the current entry and add the new entry */
739 if ((csym = findSymWithLevel (SymbolTab,sym)) &&
740 csym->level == sym->level) {
742 /* previous definition extern ? */
743 if ( IS_EXTERN(csym->etype) ) {
744 /* do types match ? */
745 if (checkType ( csym->type,sym->type) != 1)
747 werror (E_DUPLICATE,csym->name);
749 /* delete current entry */
750 deleteSym (SymbolTab, csym, csym->name );
752 addSym (SymbolTab, sym, sym->name, sym->level,sym->block);
753 } else /* not extern */
754 werror(E_DUPLICATE,sym->name) ;
758 /* check if previously defined */
759 if (csym && csym->level == sym->level ) {
760 /* if the previous one was declared as extern */
761 /* then check the type with the current one */
762 if ( IS_EXTERN(csym->etype) ) {
763 if ( checkType (csym->type, sym->type ) <= 0 )
764 werror (W_EXTERN_MISMATCH,csym->name);
768 addSym (SymbolTab,sym,sym->name,sym->level,sym->block) ;
773 /*------------------------------------------------------------------*/
774 /* funcInChain - DCL Type 'FUNCTION' found in type chain */
775 /*------------------------------------------------------------------*/
776 int funcInChain (link *lnk)
786 /*------------------------------------------------------------------*/
787 /* structElemType - returns the type info of a sturct member */
788 /*------------------------------------------------------------------*/
789 link *structElemType (link *stype, value *id ,value **argsp)
791 symbol *fields = (SPEC_STRUCT(stype) ? SPEC_STRUCT(stype)->fields : NULL);
793 if ( ! fields || ! id)
796 /* look for the id */
798 if (strcmp(fields->rname,id->name) == 0) {
800 *argsp = fields->args;
802 return copyLinkChain (fields->type) ;
804 fields = fields->next ;
806 werror(E_NOT_MEMBER,id->name);
811 /*------------------------------------------------------------------*/
812 /* getStructElement - returns element of a tructure definition */
813 /*------------------------------------------------------------------*/
814 symbol *getStructElement ( structdef *sdef, symbol *sym)
818 for ( field = sdef->fields ; field ; field = field->next )
819 if ( strcmp(field->name,sym->name) == 0)
822 werror(E_NOT_MEMBER,sym->name);
824 return sdef->fields ;
827 /*------------------------------------------------------------------*/
828 /* compStructSize - computes the size of a structure */
829 /*------------------------------------------------------------------*/
830 int compStructSize (int su, structdef *sdef )
832 int sum = 0 , usum =0;
836 /* for the identifiers */
837 loop = sdef->fields ;
840 /* create the internal name for this variable */
841 sprintf (loop->rname,"_%s",loop->name);
842 loop->offset = ( su == UNION ? sum = 0 : sum ) ;
843 SPEC_VOLATILE(loop->etype) |= (su == UNION ? 1 : 0);
845 /* if this is a bit field */
848 /* change it to a unsigned bit */
849 SPEC_NOUN(loop->etype) = V_BIT ;
850 SPEC_USIGN(loop->etype) = 1 ;
851 /* check if this fit into the remaining */
852 /* bits of this byte else align it to the */
853 /* next byte boundary */
854 if ((SPEC_BLEN(loop->etype)=loop->bitVar) <= (8 - bitOffset)) {
855 SPEC_BSTR(loop->etype) = bitOffset ;
856 sum += (loop->bitVar / 8) ;
857 bitOffset += (loop->bitVar % 8);
859 else /* does not fit */
862 loop->offset++; /* go to the next byte */
864 SPEC_BSTR(loop->etype) = bitOffset ;
865 sum += (loop->bitVar / 8) ;
866 bitOffset += (loop->bitVar % 8);
868 /* if this is the last field then pad */
869 if (!loop->next && bitOffset) {
876 sum += getSize (loop->type) ;
879 /* if function then do the arguments for it */
880 if (funcInChain(loop->type)) {
881 processFuncArgs (loop, 1);
886 /* if this is not a bitfield but the */
887 /* previous one was and did not take */
888 /* the whole byte then pad the rest */
889 if ((loop && !loop->bitVar) && bitOffset) {
894 /* if union then size = sizeof larget field */
896 usum = max(usum,sum);
900 return (su == UNION ? usum : sum);
903 /*------------------------------------------------------------------*/
904 /* checkSClass - check the storage class specification */
905 /*------------------------------------------------------------------*/
906 static void checkSClass ( symbol *sym )
908 /* type is literal can happen foe enums change
910 if (SPEC_SCLS(sym->etype) == S_LITERAL && !SPEC_ENUM(sym->etype))
911 SPEC_SCLS(sym->etype) = S_AUTO;
913 /* if sfr or sbit then must also be */
914 /* volatile the initial value will be xlated */
915 /* to an absolute address */
916 if (SPEC_SCLS(sym->etype) == S_SBIT ||
917 SPEC_SCLS(sym->etype) == S_SFR ) {
918 SPEC_VOLATILE(sym->etype) = 1;
919 /* if initial value given */
921 SPEC_ABSA(sym->etype) = 1;
922 SPEC_ADDR(sym->etype) =
923 (int) list2int(sym->ival);
928 /* if absolute address given then it mark it as
930 if (IS_ABSOLUTE(sym->etype))
931 SPEC_VOLATILE(sym->etype) = 1;
933 /* global variables declared const put into code */
934 if (sym->level == 0 &&
935 SPEC_SCLS(sym->etype) == S_CONSTANT) {
936 SPEC_SCLS(sym->etype) = S_CODE ;
937 SPEC_CONST(sym->etype) = 1;
940 /* global variable in code space is a constant */
941 if (sym->level == 0 &&
942 SPEC_SCLS(sym->etype) == S_CODE &&
944 SPEC_CONST(sym->etype) = 1;
947 /* if bit variable then no storage class can be */
948 /* specified since bit is already a storage */
949 if ( IS_BITVAR(sym->etype) &&
950 ( SPEC_SCLS(sym->etype) != S_FIXED &&
951 SPEC_SCLS(sym->etype) != S_SBIT &&
952 SPEC_SCLS(sym->etype) != S_BIT )
954 werror (E_BITVAR_STORAGE,sym->name);
955 SPEC_SCLS(sym->etype) = S_FIXED ;
958 /* extern variables cannot be initialized */
959 if (IS_EXTERN(sym->etype) && sym->ival) {
960 werror(E_EXTERN_INIT,sym->name);
964 /* if this is an automatic symbol then */
965 /* storage class will be ignored and */
966 /* symbol will be allocated on stack/ */
967 /* data depending on flag */
969 (options.stackAuto || reentrant ) &&
970 ( SPEC_SCLS(sym->etype) != S_AUTO &&
971 SPEC_SCLS(sym->etype) != S_FIXED &&
972 SPEC_SCLS(sym->etype) != S_REGISTER &&
973 SPEC_SCLS(sym->etype) != S_STACK &&
974 SPEC_SCLS(sym->etype) != S_XSTACK &&
975 SPEC_SCLS(sym->etype) != S_CONSTANT )) {
977 werror(E_AUTO_ASSUMED,sym->name) ;
978 SPEC_SCLS(sym->etype) = S_AUTO ;
981 /* automatic symbols cannot be given */
982 /* an absolute address ignore it */
984 SPEC_ABSA(sym->etype) &&
985 (options.stackAuto || reentrant) ) {
986 werror(E_AUTO_ABSA,sym->name);
987 SPEC_ABSA(sym->etype) = 0 ;
990 /* arrays & pointers cannot be defined for bits */
991 /* SBITS or SFRs or BIT */
992 if ((IS_ARRAY(sym->type) || IS_PTR(sym->type)) &&
993 ( SPEC_NOUN(sym->etype) == V_BIT ||
994 SPEC_NOUN(sym->etype) == V_SBIT ||
995 SPEC_SCLS(sym->etype) == S_SFR ))
996 werror(E_BIT_ARRAY,sym->name);
998 /* if this is a bit|sbit then set length & start */
999 if (SPEC_NOUN(sym->etype) == V_BIT ||
1000 SPEC_NOUN(sym->etype) == V_SBIT ) {
1001 SPEC_BLEN(sym->etype) = 1 ;
1002 SPEC_BSTR(sym->etype) = 0 ;
1005 /* variables declared in CODE space must have */
1006 /* initializers if not an extern */
1007 if (SPEC_SCLS(sym->etype) == S_CODE &&
1008 sym->ival == NULL &&
1010 port->mem.code_ro &&
1011 !IS_EXTERN(sym->etype))
1012 werror(E_CODE_NO_INIT,sym->name);
1014 /* if parameter or local variable then change */
1015 /* the storage class to reflect where the var will go */
1016 if ( sym->level && SPEC_SCLS(sym->etype) == S_FIXED) {
1017 if ( options.stackAuto || (currFunc && IS_RENT(currFunc->etype)))
1018 SPEC_SCLS(sym->etype) = (options.useXstack ?
1019 S_XSTACK : S_STACK ) ;
1021 SPEC_SCLS(sym->etype) = (options.useXstack ?
1026 /*------------------------------------------------------------------*/
1027 /* changePointer - change pointer to functions */
1028 /*------------------------------------------------------------------*/
1029 void changePointer (symbol *sym)
1033 /* go thru the chain of declarations */
1034 /* if we find a pointer to a function */
1035 /* unconditionally change it to a ptr */
1037 for ( p = sym->type ; p ; p = p->next) {
1038 if ( !IS_SPEC(p) && DCL_TYPE(p) == UPOINTER)
1039 DCL_TYPE(p) = GPOINTER ;
1040 if ( IS_PTR(p) && IS_FUNC(p->next))
1041 DCL_TYPE(p) = CPOINTER ;
1045 /*------------------------------------------------------------------*/
1046 /* checkDecl - does semantic validation of a declaration */
1047 /*------------------------------------------------------------------*/
1048 int checkDecl ( symbol *sym )
1051 checkSClass (sym); /* check the storage class */
1052 changePointer(sym); /* change pointers if required */
1054 /* if this is an array without any dimension
1055 then update the dimension from the initial value */
1056 if (IS_ARRAY(sym->type) && !DCL_ELEM(sym->type))
1057 DCL_ELEM(sym->type) = getNelements (sym->type,sym->ival);
1062 /*------------------------------------------------------------------*/
1063 /* copyLinkChain - makes a copy of the link chain & rets ptr 2 head */
1064 /*------------------------------------------------------------------*/
1065 link *copyLinkChain ( link *p)
1067 link *head, *curr , *loop;
1070 head = loop = ( curr ? newLink() : (void *) NULL) ;
1072 memcpy(loop,curr,sizeof(link)) ; /* copy it */
1073 loop->next = (curr->next ? newLink() : (void *) NULL) ;
1082 /*------------------------------------------------------------------*/
1083 /* cleanUpBlock - cleansup the symbol table specified for all the */
1084 /* symbols in the given block */
1085 /*------------------------------------------------------------------*/
1086 void cleanUpBlock ( bucket **table, int block)
1091 /* go thru the entire table */
1092 for ( i = 0 ; i < 256; i++ ) {
1093 for ( chain = table[i]; chain ; chain = chain->next ) {
1094 if (chain->block >= block) {
1095 deleteSym (table,chain->sym,chain->name);
1101 /*------------------------------------------------------------------*/
1102 /* cleanUpLevel - cleansup the symbol table specified for all the */
1103 /* symbols in the given level */
1104 /*------------------------------------------------------------------*/
1105 void cleanUpLevel (bucket **table, int level )
1110 /* go thru the entire table */
1111 for ( i = 0 ; i < 256; i++ ) {
1112 for ( chain = table[i]; chain ; chain = chain->next ) {
1113 if (chain->level >= level) {
1114 deleteSym (table,chain->sym,chain->name);
1120 /*------------------------------------------------------------------*/
1121 /* computeType - computes the resultant type from two types */
1122 /*------------------------------------------------------------------*/
1123 link *computeType ( link *type1, link *type2)
1127 link *etype1 = getSpec(type1);
1128 link *etype2 = getSpec(type2);
1130 /* if one of them is a float then result is a float */
1131 /* here we assume that the types passed are okay */
1132 /* and can be cast to one another */
1133 /* which ever is greater in size */
1134 if (IS_FLOAT(etype1) || IS_FLOAT(etype2))
1135 rType = newFloatLink();
1137 /* if only one of them is a bit variable
1138 then the other one prevails */
1139 if (IS_BITVAR(etype1) && !IS_BITVAR(etype2))
1140 rType = copyLinkChain(type2);
1142 if (IS_BITVAR(etype2) && !IS_BITVAR(etype1))
1143 rType = copyLinkChain(type1);
1145 /* if one of them is a pointer then that
1148 rType = copyLinkChain(type1);
1151 rType = copyLinkChain(type2);
1153 if (getSize (type1) > getSize(type2) )
1154 rType = copyLinkChain(type1);
1156 rType = copyLinkChain(type2);
1158 reType = getSpec(rType);
1160 /* if either of them unsigned then make this unsigned */
1161 if ((SPEC_USIGN(etype1) || SPEC_USIGN(etype2)) && !IS_FLOAT(reType))
1162 SPEC_USIGN(reType) = 1;
1164 /* if result is a literal then make not so */
1165 if (IS_LITERAL(reType))
1166 SPEC_SCLS(reType) = S_REGISTER ;
1171 /*------------------------------------------------------------------*/
1172 /* checkType - will do type check return 1 if match */
1173 /*------------------------------------------------------------------*/
1174 int checkType ( link *dest, link *src )
1185 /* if dest is a declarator then */
1186 if (IS_DECL(dest)) {
1188 if (DCL_TYPE(src) == DCL_TYPE(dest))
1189 return checkType(dest->next,src->next);
1191 if (IS_PTR(src) && IS_PTR(dest))
1194 if (IS_PTR(dest) && IS_ARRAY(src))
1197 if (IS_PTR(dest) && IS_FUNC(dest->next) && IS_FUNC(src))
1198 return -1 * checkType (dest->next,src) ;
1203 if (IS_PTR(dest) && IS_INTEGRAL(src))
1209 /* if one of them is a void then ok */
1210 if (SPEC_NOUN(dest) == V_VOID &&
1211 SPEC_NOUN(src) != V_VOID )
1214 if (SPEC_NOUN(dest) != V_VOID &&
1215 SPEC_NOUN(src) == V_VOID )
1218 /* char === to short */
1219 if (SPEC_NOUN(dest) == V_CHAR &&
1220 SPEC_NOUN(src) == V_INT &&
1222 return (SPEC_USIGN(src) == SPEC_USIGN(dest) ? 1 : -2);
1224 if (SPEC_NOUN(src) == V_CHAR &&
1225 SPEC_NOUN(dest) == V_INT &&
1227 return (SPEC_USIGN(src) == SPEC_USIGN(dest) ? 1 : -2);
1229 /* if they are both bitfields then if the lengths
1230 and starts don't match */
1231 if (IS_BITFIELD(dest) && IS_BITFIELD(src) &&
1232 (SPEC_BLEN(dest) != SPEC_BLEN(src) ||
1233 SPEC_BSTR(dest) != SPEC_BSTR(src)))
1236 /* it is a specifier */
1237 if (SPEC_NOUN(dest) != SPEC_NOUN(src)) {
1238 if (SPEC_USIGN(dest) == SPEC_USIGN(src) &&
1239 IS_INTEGRAL(dest) && IS_INTEGRAL(src) &&
1240 getSize(dest) == getSize(src))
1243 if (IS_ARITHMETIC(dest) && IS_ARITHMETIC(src))
1249 if (IS_STRUCT(dest)) {
1250 if (SPEC_STRUCT(dest) != SPEC_STRUCT(src))
1255 if (SPEC_LONG(dest) != SPEC_LONG(src))
1258 if (SPEC_SHORT(dest) != SPEC_SHORT(src))
1261 if (SPEC_USIGN(dest) != SPEC_USIGN(src))
1267 /*------------------------------------------------------------------*/
1268 /* inCalleeSaveList - return 1 if found in calle save list */
1269 /*------------------------------------------------------------------*/
1270 bool inCalleeSaveList ( char *s)
1274 for (i = 0 ; options.calleeSaves[i] ; i++ )
1275 if (strcmp(options.calleeSaves[i],s) == 0)
1281 /*------------------------------------------------------------------*/
1282 /* checkFunction - does all kinds of check on a function */
1283 /*------------------------------------------------------------------*/
1284 int checkFunction (symbol *sym)
1287 value *exargs, *acargs ;
1290 /* if not type then some kind of error */
1294 /* if the function has no type then make it return int */
1295 if ( !sym->type->next )
1296 sym->type->next = sym->etype = newIntLink();
1298 /* function cannot return aggregate */
1299 if (IS_AGGREGATE(sym->type->next)) {
1300 werror(E_FUNC_AGGR,sym->name);
1304 /* function cannot return bit */
1305 if (IS_BITVAR(sym->type->next)) {
1306 werror(E_FUNC_BIT,sym->name);
1310 /* check if this function is defined as calleeSaves
1311 then mark it as such */
1312 sym->calleeSave = inCalleeSaveList(sym->name);
1314 /* if interrupt service routine */
1315 /* then it cannot have arguments */
1316 if ( sym->args && IS_ISR(sym->etype) && !IS_VOID(sym->args->type)) {
1317 werror(E_INT_ARGS,sym->name);
1321 if (!(csym = findSym (SymbolTab, sym, sym->name )))
1322 return 1 ; /* not defined nothing more to check */
1324 /* check if body already present */
1325 if ( csym && csym->fbody ) {
1326 werror(E_FUNC_BODY,sym->name);
1330 /* check the return value type */
1331 if (checkType (csym->type,sym->type) <= 0) {
1332 werror(E_PREV_DEF_CONFLICT,csym->name,"type") ;
1333 werror (E_CONTINUE,"previous defintion type ");
1334 printTypeChain(csym->type,stderr);fprintf(stderr,"\n");
1335 werror (E_CONTINUE,"current definition type ");
1336 printTypeChain(sym->type,stderr);fprintf(stderr,"\n");
1340 if ( SPEC_INTRTN(csym->etype) != SPEC_INTRTN(sym->etype)) {
1341 werror (E_PREV_DEF_CONFLICT,csym->name,"interrupt");
1345 if (SPEC_BANK(csym->etype) != SPEC_BANK(sym->etype)) {
1346 werror (E_PREV_DEF_CONFLICT,csym->name,"using");
1350 /* compare expected agrs with actual args */
1351 exargs = csym->args ;
1352 acargs = sym->args ;
1354 /* for all the expected args do */
1357 exargs = exargs->next, acargs = acargs->next, argCnt++ ) {
1358 if ( checkType(exargs->type,acargs->type) <= 0) {
1359 werror(E_ARG_TYPE,argCnt);
1364 /* if one them ended we have a problem */
1365 if ((exargs && !acargs && !IS_VOID(exargs->type)) ||
1366 (!exargs && acargs && !IS_VOID(acargs->type)))
1367 werror(E_ARG_COUNT);
1369 /* replace with this defition */
1370 sym->cdef = csym->cdef;
1371 deleteSym (SymbolTab,csym,csym->name);
1372 addSym (SymbolTab,sym,sym->name,sym->level,sym->block);
1373 if (IS_EXTERN(csym->etype) && !
1374 IS_EXTERN(sym->etype))
1375 addSet(&publics,sym);
1379 /*-----------------------------------------------------------------*/
1380 /* processFuncArgs - does some processing with function args */
1381 /*-----------------------------------------------------------------*/
1382 void processFuncArgs (symbol *func, int ignoreName)
1388 /* if this function has variable argument list */
1389 /* then make the function a reentrant one */
1391 SPEC_RENT(func->etype) = 1;
1393 /* check if this function is defined as calleeSaves
1394 then mark it as such */
1395 func->calleeSave = inCalleeSaveList(func->name);
1397 val = func->args; /* loop thru all the arguments */
1399 /* if it is void then remove parameters */
1400 if (val && IS_VOID(val->type)) {
1405 /* reset regparm for the port */
1406 (*port->reset_regparms)();
1407 /* if any of the arguments is an aggregate */
1408 /* change it to pointer to the same type */
1410 /* mark it as a register parameter if
1411 the function does not have VA_ARG
1412 and as port dictates
1413 not inhibited by command line option or #pragma */
1414 if (!func->hasVargs &&
1415 !options.noregparms &&
1416 (*port->reg_parm)(val->type)) {
1418 SPEC_REGPARM(val->etype) = 1;
1421 #if ENABLE_MICHAELH_REGPARM_HACK
1422 /* HACK: pull out later */
1425 !strcmp(func->name, "memcpy") ||
1426 !strcmp(func->name, "strcpy") ||
1427 !strcmp(func->name, "strcmp") ||
1430 port->reg_parm(val->type)) {
1431 SPEC_REGPARM(val->etype) = 1;
1435 if ( IS_AGGREGATE(val->type)) {
1436 /* if this is a structure */
1437 /* then we need to add a new link */
1438 if (IS_STRUCT(val->type)) {
1439 /* first lets add DECLARATOR type */
1440 link *p = val->type ;
1442 werror(W_STRUCT_AS_ARG,val->name);
1443 val->type = newLink();
1444 val->type->next = p ;
1447 /* change to a pointer depending on the */
1448 /* storage class specified */
1449 switch (SPEC_SCLS(val->etype)) {
1451 DCL_TYPE(val->type) = IPOINTER;
1454 DCL_TYPE(val->type) = PPOINTER;
1460 DCL_TYPE(val->type) = POINTER ;
1463 DCL_TYPE(val->type) = CPOINTER;
1466 DCL_TYPE(val->type) = FPOINTER;
1469 DCL_TYPE(val->type) = EEPPOINTER;
1472 DCL_TYPE(val->type) = GPOINTER;
1475 /* is there is a symbol associated then */
1476 /* change the type of the symbol as well*/
1478 val->sym->type = copyLinkChain(val->type);
1479 val->sym->etype = getSpec(val->sym->type);
1487 /* if this function is reentrant or */
1488 /* automatics r 2b stacked then nothing */
1489 if (IS_RENT(func->etype) || options.stackAuto )
1496 /* if a symbolname is not given */
1497 /* synthesize a variable name */
1500 sprintf(val->name,"_%s_PARM_%d",func->name,pNum++);
1501 val->sym = newSymbol(val->name,1);
1502 SPEC_OCLS(val->etype) = (options.model ? xdata : data);
1503 val->sym->type = copyLinkChain (val->type);
1504 val->sym->etype = getSpec (val->sym->type);
1505 val->sym->_isparm = 1;
1506 strcpy (val->sym->rname,val->name);
1507 SPEC_STAT(val->etype) = SPEC_STAT(val->sym->etype) =
1508 SPEC_STAT(func->etype);
1509 addSymChain(val->sym);
1512 else /* symbol name given create synth name */ {
1514 sprintf(val->name,"_%s_PARM_%d",func->name,pNum++);
1515 strcpy (val->sym->rname,val->name);
1516 val->sym->_isparm = 1;
1517 SPEC_OCLS(val->etype) = SPEC_OCLS(val->sym->etype) =
1518 (options.model ? xdata : data);
1519 SPEC_STAT(val->etype) = SPEC_STAT(val->sym->etype) =
1520 SPEC_STAT(func->etype);
1526 /*-----------------------------------------------------------------*/
1527 /* isSymbolEqual - compares two symbols return 1 if they match */
1528 /*-----------------------------------------------------------------*/
1529 int isSymbolEqual (symbol *dest, symbol *src)
1531 /* if pointers match then equal */
1535 /* if one of them is null then don't match */
1539 /* if both of them have rname match on rname */
1540 if (dest->rname[0] && src->rname[0])
1541 return (!strcmp(dest->rname,src->rname));
1543 /* otherwise match on name */
1544 return (!strcmp(dest->name,src->name));
1547 /*-----------------------------------------------------------------*/
1548 /* printTypeChain - prints the type chain in human readable form */
1549 /*-----------------------------------------------------------------*/
1550 void printTypeChain (link *type, FILE *of)
1560 if (IS_DECL(type)) {
1561 switch (DCL_TYPE(type)) {
1563 fprintf (of,"function ");
1566 fprintf (of,"_generic * ");
1567 if (DCL_PTR_CONST(type))
1568 fprintf(of,"const ");
1571 fprintf (of,"_code * ");
1572 if (DCL_PTR_CONST(type))
1573 fprintf(of,"const ");
1576 fprintf (of,"_far * ");
1577 if (DCL_PTR_CONST(type))
1578 fprintf(of,"const ");
1581 fprintf (of,"_eeprom * ");
1582 if (DCL_PTR_CONST(type))
1583 fprintf(of,"const ");
1587 fprintf (of,"_near * ");
1588 if (DCL_PTR_CONST(type))
1589 fprintf(of,"const ");
1592 fprintf (of,"_idata *");
1593 if (DCL_PTR_CONST(type))
1594 fprintf(of,"const ");
1597 fprintf (of,"_pdata *");
1598 if (DCL_PTR_CONST(type))
1599 fprintf(of,"const ");
1602 fprintf (of," _unkown *");
1603 if (DCL_PTR_CONST(type))
1604 fprintf(of,"const ");
1608 fprintf (of,"array of ");
1612 if (SPEC_VOLATILE(type))
1613 fprintf (of,"volatile ");
1614 if (SPEC_USIGN(type))
1615 fprintf (of,"unsigned ");
1617 switch (SPEC_NOUN(type)) {
1620 fprintf (of,"long ");
1623 fprintf (of,"short ");
1625 fprintf (of,"int ");
1629 fprintf(of,"char ");
1633 fprintf(of,"void ");
1637 fprintf(of,"float ");
1641 fprintf(of,"struct %s",SPEC_STRUCT(type)->tag);
1645 fprintf(of,"sbit ");
1649 fprintf(of,"bit {%d,%d}",SPEC_BSTR(type),SPEC_BLEN(type));
1662 /*-----------------------------------------------------------------*/
1663 /* cdbTypeInfo - print the type information for debugger */
1664 /*-----------------------------------------------------------------*/
1665 void cdbTypeInfo (link *type,FILE *of)
1667 fprintf(of,"{%d}",getSize(type));
1669 if (IS_DECL(type)) {
1670 switch (DCL_TYPE(type)) {
1696 fprintf (of,"DA%d,",DCL_ELEM(type));
1702 switch (SPEC_NOUN(type)) {
1726 fprintf(of,"ST%s",SPEC_STRUCT(type)->tag);
1734 fprintf(of,"SB%d$%d",SPEC_BSTR(type),SPEC_BLEN(type));
1741 if (SPEC_USIGN(type))
1749 /*-----------------------------------------------------------------*/
1750 /* cdbSymbol - prints a symbol & its type information for debugger */
1751 /*-----------------------------------------------------------------*/
1752 void cdbSymbol ( symbol *sym, FILE *of, int isStructSym, int isFunc)
1764 fprintf(of,"S:"); /* symbol record */
1765 /* if this is not a structure symbol then
1766 we need to figure out the scope information */
1770 if (IS_STATIC(sym->etype))
1771 fprintf(of,"F%s$",moduleName); /* scope is file */
1773 fprintf(of,"G$"); /* scope is global */
1776 /* symbol is local */
1777 fprintf(of,"L%s$",(sym->localof ? sym->localof->name : "-null-"));
1779 fprintf(of,"S$"); /* scope is structure */
1781 /* print the name, & mangled name */
1782 fprintf(of,"%s$%d$%d(",sym->name,
1783 sym->level,sym->block);
1785 cdbTypeInfo(sym->type,of);
1788 /* print the address space */
1789 map = SPEC_OCLS(sym->etype);
1790 fprintf(of,"%c,%d,%d",
1791 (map ? map->dbName : 'Z') ,sym->onStack,SPEC_STAK(sym->etype));
1793 /* if assigned to registers then output register names */
1794 /* if this is a function then print
1795 if is it an interrupt routine & interrupt number
1796 and the register bank it is using */
1798 fprintf(of,",%d,%d,%d",SPEC_INTRTN(sym->etype),
1799 SPEC_INTN(sym->etype),SPEC_BANK(sym->etype));
1800 /* alternate location to find this symbol @ : eg registers
1807 /*-----------------------------------------------------------------*/
1808 /* cdbStruct - print a structure for debugger */
1809 /*-----------------------------------------------------------------*/
1810 void cdbStruct ( structdef *sdef,int block,FILE *of,
1811 int inStruct, char *tag)
1816 /* if block # then must have function scope */
1817 fprintf(of,"F%s$",moduleName);
1818 fprintf(of,"%s[",(tag ? tag : sdef->tag));
1819 for (sym=sdef->fields ; sym ; sym = sym->next) {
1820 fprintf(of,"({%d}",sym->offset);
1821 cdbSymbol(sym,of,TRUE,FALSE);
1829 /*------------------------------------------------------------------*/
1830 /* cdbStructBlock - calls struct printing for a blcks */
1831 /*------------------------------------------------------------------*/
1832 void cdbStructBlock (int block , FILE *of)
1835 bucket **table = StructTab;
1838 /* go thru the entire table */
1839 for ( i = 0 ; i < 256; i++ ) {
1840 for ( chain = table[i]; chain ; chain = chain->next ) {
1841 if (chain->block >= block) {
1842 cdbStruct((structdef *)chain->sym, chain->block ,of,0,NULL);
1848 /*-----------------------------------------------------------------*/
1849 /* powof2 - returns power of two for the number if number is pow 2 */
1850 /*-----------------------------------------------------------------*/
1851 int powof2 (unsigned long num)
1857 if (num & 1) n1s++ ;
1862 if (n1s > 1 || nshifts == 0) return 0;
1863 return nshifts - 1 ;
1877 /* Dims: mul/div/mod, BYTE/WORD/DWORD, SIGNED/UNSIGNED */
1878 symbol *__muldiv[3][3][2];
1879 /* Dims: BYTE/WORD/DWORD SIGNED/UNSIGNED */
1880 link *__multypes[3][2];
1881 /* Dims: to/from float, BYTE/WORD/DWORD, SIGNED/USIGNED */
1882 symbol *__conv[2][3][2];
1886 static void _makeRegParam(symbol *sym)
1890 val = sym->args; /* loop thru all the arguments */
1892 /* reset regparm for the port */
1893 (*port->reset_regparms)();
1895 SPEC_REGPARM(val->etype) = 1;
1896 sym->argStack -= getSize(val->type);
1901 /*-----------------------------------------------------------------*/
1902 /* initCSupport - create functions for C support routines */
1903 /*-----------------------------------------------------------------*/
1904 void initCSupport ()
1906 const char *smuldivmod[] = {
1909 const char *sbwd[] = {
1910 "char", "int", "long"
1912 const char *ssu[] = {
1916 int bwd, su, muldivmod, tofrom;
1918 floatType= newFloatLink();
1920 for (bwd = 0; bwd < 3; bwd++) {
1935 __multypes[bwd][0] = l;
1936 __multypes[bwd][1] = copyLinkChain(l);
1937 SPEC_USIGN(__multypes[bwd][1]) = 1;
1940 __fsadd = funcOfType ("__fsadd", floatType, floatType, 2, options.float_rent);
1941 __fssub = funcOfType ("__fssub", floatType, floatType, 2, options.float_rent);
1942 __fsmul = funcOfType ("__fsmul", floatType, floatType, 2, options.float_rent);
1943 __fsdiv = funcOfType ("__fsdiv", floatType, floatType, 2, options.float_rent);
1944 __fseq = funcOfType ("__fseq", CHARTYPE, floatType, 2, options.float_rent);
1945 __fsneq = funcOfType ("__fsneq", CHARTYPE, floatType, 2, options.float_rent);
1946 __fslt = funcOfType ("__fslt", CHARTYPE, floatType, 2, options.float_rent);
1947 __fslteq= funcOfType ("__fslteq", CHARTYPE, floatType, 2, options.float_rent);
1948 __fsgt = funcOfType ("__fsgt", CHARTYPE, floatType, 2, options.float_rent);
1949 __fsgteq= funcOfType ("__fsgteq", CHARTYPE, floatType, 2, options.float_rent);
1951 for (tofrom = 0; tofrom < 2; tofrom++) {
1952 for (bwd = 0; bwd < 3; bwd++) {
1953 for (su = 0; su < 2; su++) {
1955 sprintf(buffer, "__fs2%s%s", ssu[su], sbwd[bwd]);
1956 __conv[tofrom][bwd][su] = funcOfType(buffer, __multypes[bwd][su], floatType, 1, options.float_rent);
1959 sprintf(buffer, "__%s%s2fs", ssu[su], sbwd[bwd]);
1960 __conv[tofrom][bwd][su] = funcOfType(buffer, floatType, __multypes[bwd][su], 1, options.float_rent);
1966 for (muldivmod = 0; muldivmod < 3; muldivmod++) {
1967 for (bwd = 0; bwd < 3; bwd++) {
1968 for (su = 0; su < 2; su++) {
1969 sprintf(buffer, "_%s%s%s",
1970 smuldivmod[muldivmod],
1973 __muldiv[muldivmod][bwd][su] = funcOfType(buffer, __multypes[bwd][su], __multypes[bwd][su], 2, options.intlong_rent);
1974 #if ENABLE_MICHAELH_REGPARM_HACK
1976 _makeRegParam(__muldiv[muldivmod][bwd][su]);