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 bucket *SymbolTab [256] ; /* the symbol table */
27 bucket *StructTab [256] ; /* the structure table */
28 bucket *TypedefTab[256] ; /* the typedef table */
29 bucket *LabelTab [256] ; /* the Label table */
30 bucket *enumTab [256] ; /* enumerated table */
32 /*------------------------------------------------------------------*/
33 /* initSymt () - initialises symbol table related stuff */
34 /*------------------------------------------------------------------*/
39 for ( i = 0 ; i < 256 ; i++ )
40 SymbolTab[i] = StructTab[i] = (void *) NULL ;
44 /*-----------------------------------------------------------------*/
45 /* newBucket - allocates & returns a new bucket */
46 /*-----------------------------------------------------------------*/
51 ALLOC(bp,sizeof(bucket));
56 /*-----------------------------------------------------------------*/
57 /* hashKey - computes the hashkey given a symbol name */
58 /*-----------------------------------------------------------------*/
59 int hashKey (const char *s)
61 unsigned long key = 0;
68 /*-----------------------------------------------------------------*/
69 /* addSym - adds a symbol to the hash Table */
70 /*-----------------------------------------------------------------*/
71 void addSym ( bucket **stab ,
77 int i ; /* index into the hash Table */
78 bucket *bp ; /* temp bucket * */
80 /* the symbols are always added at the head of the list */
82 /* get a free entry */
83 ALLOC(bp,sizeof(bucket));
85 bp->sym = sym ; /* update the symbol pointer */
86 bp->level = level; /* update the nest level */
88 strcpy(bp->name,sname); /* copy the name into place */
90 /* if this is the first entry */
91 if (stab[i] == NULL) {
92 bp->prev = bp->next = (void *) NULL ; /* point to nothing */
95 /* not first entry then add @ head of list */
104 /*-----------------------------------------------------------------*/
105 /* deleteSym - deletes a symbol from the hash Table entry */
106 /*-----------------------------------------------------------------*/
107 void deleteSym ( bucket **stab, void *sym, char *sname)
115 /* find the symbol */
117 if (bp->sym == sym) /* found it then break out */
118 break ; /* of the loop */
122 if (!bp) /* did not find it */
124 /* if this is the first one in the chain */
127 if ( stab[i] ) /* if chain ! empty */
128 stab[i]->prev = (void *) NULL ;
130 /* middle || end of chain */
132 if ( bp->next ) /* if not end of chain */
133 bp->next->prev = bp->prev ;
135 bp->prev->next = bp->next ;
140 /*-----------------------------------------------------------------*/
141 /* findSym - finds a symbol in a table */
142 /*-----------------------------------------------------------------*/
143 void *findSym ( bucket **stab, void *sym, const char *sname)
147 bp = stab[hashKey(sname)] ;
150 if ( bp->sym == sym || strcmp (bp->name,sname) == 0 )
155 return ( bp ? bp->sym : (void *) NULL ) ;
158 /*-----------------------------------------------------------------*/
159 /* findSymWithLevel - finds a symbol with a name & level */
160 /*-----------------------------------------------------------------*/
161 void *findSymWithLevel ( bucket **stab, symbol *sym)
165 bp = stab[hashKey(sym->name)];
168 ** do the search from the head of the list since the
169 ** elements are added at the head it is ensured that
170 ** we will find the deeper definitions before we find
171 ** the global ones. we need to check for symbols with
172 ** level <= to the level given, if levels match then block
173 ** numbers need to match as well
177 if ( strcmp(bp->name,sym->name) == 0 && bp->level <= sym->level) {
178 /* if this is parameter then nothing else need to be checked */
179 if (((symbol *)(bp->sym))->_isparm)
181 /* if levels match then block numbers hsould also match */
182 if (bp->level && bp->level == sym->level && bp->block == sym->block )
184 /* if levels don't match then we are okay */
185 if (bp->level && bp->level != sym->level)
187 /* if this is a global variable then we are ok too */
195 return (void *) NULL ;
198 /*-----------------------------------------------------------------*/
199 /* findSymWithBlock - finds a symbol with name in with a block */
200 /*-----------------------------------------------------------------*/
201 void *findSymWithBlock ( bucket **stab, symbol *sym, int block)
205 bp = stab[hashKey(sym->name)] ;
208 if ( strcmp (bp->name,sym->name) == 0 &&
214 return ( bp ? bp->sym : (void *) NULL ) ;
217 /*------------------------------------------------------------------*/
218 /* newSymbol () - returns a new pointer to a symbol */
219 /*------------------------------------------------------------------*/
220 symbol *newSymbol (char *name, int scope )
224 ALLOC(sym,sizeof(symbol));
226 strcpy(sym->name,name); /* copy the name */
227 sym->level = scope ; /* set the level */
228 sym->block = currBlockno ;
229 sym->lineDef = yylineno ; /* set the line number */
233 /*------------------------------------------------------------------*/
234 /* newLink - creates a new link (declarator,specifier) */
235 /*------------------------------------------------------------------*/
240 ALLOC(p,sizeof(link));
245 /*------------------------------------------------------------------*/
246 /* newStruct - creats a new structdef from the free list */
247 /*------------------------------------------------------------------*/
248 structdef *newStruct ( char *tag )
252 ALLOC(s,sizeof(structdef));
254 strcpy(s->tag,tag) ; /* copy the tag */
258 /*------------------------------------------------------------------*/
259 /* pointerTypes - do the computation for the pointer types */
260 /*------------------------------------------------------------------*/
261 void pointerTypes (link *ptr, link *type)
266 /* find the first pointer type */
267 while (ptr && !IS_PTR(ptr))
270 /* could not find it */
271 if (!ptr || IS_SPEC(ptr) ||
272 DCL_TYPE(ptr) != UPOINTER)
275 /* change the pointer type depending on the
276 storage class of the type */
278 DCL_PTR_CONST(ptr) = SPEC_CONST(type);
279 DCL_PTR_VOLATILE(ptr) = SPEC_VOLATILE(type);
280 switch (SPEC_SCLS(type)) {
282 DCL_TYPE(ptr) = FPOINTER;
285 DCL_TYPE(ptr) = IPOINTER ;
288 DCL_TYPE(ptr) = PPOINTER ;
291 DCL_TYPE(ptr) = POINTER ;
294 DCL_PTR_CONST(ptr) = port->mem.code_ro;
295 DCL_TYPE(ptr) = CPOINTER ;
298 DCL_TYPE(ptr) = EEPPOINTER;
301 DCL_TYPE(ptr) = GPOINTER;
304 /* the storage class of type ends here */
307 SPEC_VOLATILE(type) = 0;
310 /* now change all the remaining unknown pointers
311 to generic pointers */
313 if (!IS_SPEC(ptr) && DCL_TYPE(ptr) == UPOINTER)
314 DCL_TYPE(ptr) = GPOINTER;
318 /* same for the type although it is highly unlikely that
319 type will have a pointer */
321 if (!IS_SPEC(type) && DCL_TYPE(type) == UPOINTER)
322 DCL_TYPE(type) = GPOINTER;
328 /*------------------------------------------------------------------*/
329 /* addDecl - adds a declarator @ the end of a chain */
330 /*------------------------------------------------------------------*/
331 void addDecl ( symbol *sym, int type , link *p )
337 /* if we are passed a link then set head & tail */
344 head = tail = newLink() ;
345 DCL_TYPE(head) = type ;
348 /* if this is the first entry */
354 if ( IS_SPEC(sym->etype) && IS_SPEC(head) && head == tail ) {
355 sym->etype = mergeSpec(sym->etype,head);
358 if ( IS_SPEC(sym->etype) && !IS_SPEC(head) && head == tail ) {
360 while (t->next != sym->etype) t = t->next ;
362 tail->next = sym->etype;
364 sym->etype->next = head;
370 /* if the type is a unknown pointer and has
371 a tspec then take the storage class const & volatile
372 attribute from the tspec & make it those of this
376 DCL_TYPE(p) == UPOINTER &&
378 if (!IS_SPEC(sym->etype)) {
379 sym->etype = sym->etype->next = newLink();
380 sym->etype->class = SPECIFIER;
382 SPEC_SCLS(sym->etype) = SPEC_SCLS(DCL_TSPEC(p));
383 SPEC_CONST(sym->etype) = SPEC_CONST(DCL_TSPEC(p));
384 SPEC_VOLATILE(sym->etype) = SPEC_VOLATILE(DCL_TSPEC(p));
390 /*------------------------------------------------------------------*/
391 /* mergeSpec - merges two specifiers and returns the new one */
392 /*------------------------------------------------------------------*/
393 link *mergeSpec ( link *dest, link *src )
395 /* if noun different then src overrides */
396 if ( SPEC_NOUN(dest) != SPEC_NOUN(src) && !SPEC_NOUN(dest))
397 SPEC_NOUN(dest) = SPEC_NOUN(src) ;
399 if (! SPEC_SCLS(dest)) /* if destination has no storage class */
400 SPEC_SCLS(dest) = SPEC_SCLS(src) ;
402 /* copy all the specifications */
403 SPEC_LONG(dest) |= SPEC_LONG(src);
404 SPEC_SHORT(dest) |= SPEC_SHORT(src);
405 SPEC_USIGN(dest) |= SPEC_USIGN(src);
406 SPEC_STAT(dest) |= SPEC_STAT(src);
407 SPEC_EXTR(dest) |= SPEC_EXTR(src);
408 SPEC_ABSA(dest) |= SPEC_ABSA(src);
409 SPEC_RENT(dest) |= SPEC_RENT(src);
410 SPEC_INTN(dest) |= SPEC_INTN(src);
411 SPEC_BANK(dest) |= SPEC_BANK(src);
412 SPEC_VOLATILE(dest) |= SPEC_VOLATILE(src);
413 SPEC_CRTCL(dest) |= SPEC_CRTCL(src);
414 SPEC_ADDR(dest) |= SPEC_ADDR(src);
415 SPEC_OCLS(dest) = SPEC_OCLS(src);
416 SPEC_BLEN(dest) |= SPEC_BLEN(src);
417 SPEC_BSTR(dest) |= SPEC_BSTR(src);
418 SPEC_TYPEDEF(dest) |= SPEC_TYPEDEF(src);
419 SPEC_NONBANKED(dest) |= SPEC_NONBANKED(src);
421 if ( IS_STRUCT(dest) && SPEC_STRUCT(dest) == NULL )
422 SPEC_STRUCT(dest) = SPEC_STRUCT(src);
427 /*------------------------------------------------------------------*/
428 /* cloneSpec - copies the entire spec and returns a new spec */
429 /*------------------------------------------------------------------*/
430 link *cloneSpec ( link *src )
434 /* go thru chain till we find the specifier */
435 while ( src && src->class != SPECIFIER )
439 memcpy (spec,src,sizeof(link));
443 /*------------------------------------------------------------------*/
444 /* genSymName - generates and returns a name used for anonymous vars*/
445 /*------------------------------------------------------------------*/
446 char *genSymName ( int level )
448 static int gCount = 0 ;
449 static char gname[SDCC_NAME_MAX+1] ;
451 sprintf (gname,"__%04d%04d",level,gCount++);
455 /*------------------------------------------------------------------*/
456 /* getSpec - returns the specifier part from a declaration chain */
457 /*------------------------------------------------------------------*/
458 link *getSpec ( link *p )
463 while ( p && ! (IS_SPEC(p)))
469 /*------------------------------------------------------------------*/
470 /* newCharLink() - creates an int type */
471 /*------------------------------------------------------------------*/
477 p->class = SPECIFIER ;
478 SPEC_NOUN(p) = V_CHAR ;
483 /*------------------------------------------------------------------*/
484 /* newFloatLink - a new Float type */
485 /*------------------------------------------------------------------*/
491 p->class = SPECIFIER ;
492 SPEC_NOUN(p) = V_FLOAT ;
497 /*------------------------------------------------------------------*/
498 /* newLongLink() - new long type */
499 /*------------------------------------------------------------------*/
505 p->class = SPECIFIER ;
506 SPEC_NOUN(p) = V_INT ;
512 /*------------------------------------------------------------------*/
513 /* newIntLink() - creates an int type */
514 /*------------------------------------------------------------------*/
520 p->class = SPECIFIER ;
521 SPEC_NOUN(p) = V_INT ;
526 /*------------------------------------------------------------------*/
527 /* getSize - returns size of a type chain in bits */
528 /*------------------------------------------------------------------*/
529 unsigned int getSize ( link *p )
531 /* if nothing return 0 */
534 if ( IS_SPEC(p) ) { /* if this is the specifier then */
535 switch (SPEC_NOUN(p)) { /* depending on the specifier type */
537 return (IS_LONG(p) ? LONGSIZE : ( IS_SHORT(p) ? SHORTSIZE: INTSIZE)) ;
545 return SPEC_STRUCT(p)->size ;
551 return ((SPEC_BLEN(p) / 8) + (SPEC_BLEN(p) % 8 ? 1 : 0)) ;
557 /* this is a specifier */
558 switch (DCL_TYPE(p)) {
562 return DCL_ELEM(p) * getSize (p->next) ;
579 /*------------------------------------------------------------------*/
580 /* bitsForType - returns # of bits required to store this type */
581 /*------------------------------------------------------------------*/
582 unsigned int bitsForType ( link *p )
584 /* if nothing return 0 */
588 if ( IS_SPEC(p) ) { /* if this is the specifier then */
590 switch (SPEC_NOUN(p)) { /* depending on the specifier type */
592 return (IS_LONG(p) ? LONGSIZE*8 : ( IS_SHORT(p) ? SHORTSIZE*8: INTSIZE*8)) ;
600 return SPEC_STRUCT(p)->size*8 ;
612 /* this is a specifier */
613 switch (DCL_TYPE(p)) {
617 return DCL_ELEM(p) * getSize (p->next) *8 ;
621 return ( PTRSIZE * 8) ;
625 return ( FPTRSIZE * 8);
627 return ( GPTRSIZE * 8);
634 /*------------------------------------------------------------------*/
635 /* copySymbolChain - copies a symbol chain */
636 /*------------------------------------------------------------------*/
637 symbol *copySymbolChain (symbol *src)
644 dest = copySymbol(src);
645 dest->next = copySymbolChain(src->next);
649 /*------------------------------------------------------------------*/
650 /* copySymbol - makes a copy of a symbol */
651 /*------------------------------------------------------------------*/
652 symbol *copySymbol (symbol *src)
659 dest = newSymbol( src->name, src->level );
660 memcpy(dest,src,sizeof(symbol));
661 dest->level = src->level ;
662 dest->block = src->block ;
663 dest->ival = copyIlist(src->ival);
664 dest->type = copyLinkChain(src->type);
665 dest->etype= getSpec(dest->type);
667 dest->args = copyValueChain (src->args);
668 dest->key = src->key;
669 dest->calleeSave = src->calleeSave;
670 dest->allocreq = src->allocreq;
674 /*------------------------------------------------------------------*/
675 /* reverseSyms - reverses the links for a symbol chain */
676 /*------------------------------------------------------------------*/
677 symbol *reverseSyms ( symbol *sym)
679 symbol *prev , *curr, *next ;
694 sym->next = (void *) NULL ;
698 /*------------------------------------------------------------------*/
699 /* reverseLink - reverses the links for a type chain */
700 /*------------------------------------------------------------------*/
701 link *reverseLink ( link *type)
703 link *prev , *curr, *next ;
718 type->next = (void *) NULL ;
722 /*------------------------------------------------------------------*/
723 /* addSymChain - adds a symbol chain to the symboltable */
724 /*------------------------------------------------------------------*/
725 void addSymChain ( symbol *symHead )
727 symbol *sym = symHead ;
728 symbol *csym = NULL ;
730 for (;sym != NULL ; sym = sym->next ) {
732 /* if already exists in the symbol table then check if
733 the previous was an extern definition if yes then
734 then check if the type match, if the types match then
735 delete the current entry and add the new entry */
736 if ((csym = findSymWithLevel (SymbolTab,sym)) &&
737 csym->level == sym->level) {
739 /* previous definition extern ? */
740 if ( IS_EXTERN(csym->etype) ) {
741 /* do types match ? */
742 if (checkType ( csym->type,sym->type) != 1)
744 werror (E_DUPLICATE,csym->name);
746 /* delete current entry */
747 deleteSym (SymbolTab, csym, csym->name );
749 addSym (SymbolTab, sym, sym->name, sym->level,sym->block);
750 } else /* not extern */
751 werror(E_DUPLICATE,sym->name) ;
755 /* check if previously defined */
756 if (csym && csym->level == sym->level ) {
757 /* if the previous one was declared as extern */
758 /* then check the type with the current one */
759 if ( IS_EXTERN(csym->etype) ) {
760 if ( checkType (csym->type, sym->type ) <= 0 )
761 werror (W_EXTERN_MISMATCH,csym->name);
765 addSym (SymbolTab,sym,sym->name,sym->level,sym->block) ;
770 /*------------------------------------------------------------------*/
771 /* funcInChain - DCL Type 'FUNCTION' found in type chain */
772 /*------------------------------------------------------------------*/
773 int funcInChain (link *lnk)
783 /*------------------------------------------------------------------*/
784 /* structElemType - returns the type info of a sturct member */
785 /*------------------------------------------------------------------*/
786 link *structElemType (link *stype, value *id ,value **argsp)
788 symbol *fields = (SPEC_STRUCT(stype) ? SPEC_STRUCT(stype)->fields : NULL);
790 if ( ! fields || ! id)
793 /* look for the id */
795 if (strcmp(fields->rname,id->name) == 0) {
797 *argsp = fields->args;
799 return copyLinkChain (fields->type) ;
801 fields = fields->next ;
803 werror(E_NOT_MEMBER,id->name);
808 /*------------------------------------------------------------------*/
809 /* getStructElement - returns element of a tructure definition */
810 /*------------------------------------------------------------------*/
811 symbol *getStructElement ( structdef *sdef, symbol *sym)
815 for ( field = sdef->fields ; field ; field = field->next )
816 if ( strcmp(field->name,sym->name) == 0)
819 werror(E_NOT_MEMBER,sym->name);
821 return sdef->fields ;
824 /*------------------------------------------------------------------*/
825 /* compStructSize - computes the size of a structure */
826 /*------------------------------------------------------------------*/
827 int compStructSize (int su, structdef *sdef )
829 int sum = 0 , usum =0;
833 /* for the identifiers */
834 loop = sdef->fields ;
837 /* create the internal name for this variable */
838 sprintf (loop->rname,"_%s",loop->name);
839 loop->offset = ( su == UNION ? sum = 0 : sum ) ;
840 SPEC_VOLATILE(loop->etype) |= (su == UNION ? 1 : 0);
842 /* if this is a bit field */
845 /* change it to a unsigned bit */
846 SPEC_NOUN(loop->etype) = V_BIT ;
847 SPEC_USIGN(loop->etype) = 1 ;
848 /* check if this fit into the remaining */
849 /* bits of this byte else align it to the */
850 /* next byte boundary */
851 if ((SPEC_BLEN(loop->etype)=loop->bitVar) <= (8 - bitOffset)) {
852 SPEC_BSTR(loop->etype) = bitOffset ;
853 sum += (loop->bitVar / 8) ;
854 bitOffset += (loop->bitVar % 8);
856 else /* does not fit */
859 loop->offset++; /* go to the next byte */
861 SPEC_BSTR(loop->etype) = bitOffset ;
862 sum += (loop->bitVar / 8) ;
863 bitOffset += (loop->bitVar % 8);
865 /* if this is the last field then pad */
866 if (!loop->next && bitOffset) {
873 sum += getSize (loop->type) ;
876 /* if function then do the arguments for it */
877 if (funcInChain(loop->type)) {
878 processFuncArgs (loop, 1);
883 /* if this is not a bitfield but the */
884 /* previous one was and did not take */
885 /* the whole byte then pad the rest */
886 if ((loop && !loop->bitVar) && bitOffset) {
891 /* if union then size = sizeof larget field */
893 usum = max(usum,sum);
897 return (su == UNION ? usum : sum);
900 /*------------------------------------------------------------------*/
901 /* checkSClass - check the storage class specification */
902 /*------------------------------------------------------------------*/
903 static void checkSClass ( symbol *sym )
905 /* type is literal can happen foe enums change
907 if (SPEC_SCLS(sym->etype) == S_LITERAL && !SPEC_ENUM(sym->etype))
908 SPEC_SCLS(sym->etype) = S_AUTO;
910 /* if sfr or sbit then must also be */
911 /* volatile the initial value will be xlated */
912 /* to an absolute address */
913 if (SPEC_SCLS(sym->etype) == S_SBIT ||
914 SPEC_SCLS(sym->etype) == S_SFR ) {
915 SPEC_VOLATILE(sym->etype) = 1;
916 /* if initial value given */
918 SPEC_ABSA(sym->etype) = 1;
919 SPEC_ADDR(sym->etype) =
920 (int) list2int(sym->ival);
925 /* if absolute address given then it mark it as
927 if (IS_ABSOLUTE(sym->etype))
928 SPEC_VOLATILE(sym->etype) = 1;
930 /* global variables declared const put into code */
931 if (sym->level == 0 &&
932 SPEC_SCLS(sym->etype) == S_CONSTANT) {
933 SPEC_SCLS(sym->etype) = S_CODE ;
934 SPEC_CONST(sym->etype) = 1;
937 /* global variable in code space is a constant */
938 if (sym->level == 0 &&
939 SPEC_SCLS(sym->etype) == S_CODE &&
941 SPEC_CONST(sym->etype) = 1;
944 /* if bit variable then no storage class can be */
945 /* specified since bit is already a storage */
946 if ( IS_BITVAR(sym->etype) &&
947 ( SPEC_SCLS(sym->etype) != S_FIXED &&
948 SPEC_SCLS(sym->etype) != S_SBIT &&
949 SPEC_SCLS(sym->etype) != S_BIT )
951 werror (E_BITVAR_STORAGE,sym->name);
952 SPEC_SCLS(sym->etype) = S_FIXED ;
955 /* extern variables cannot be initialized */
956 if (IS_EXTERN(sym->etype) && sym->ival) {
957 werror(E_EXTERN_INIT,sym->name);
961 /* if this is an automatic symbol then */
962 /* storage class will be ignored and */
963 /* symbol will be allocated on stack/ */
964 /* data depending on flag */
966 (options.stackAuto || reentrant ) &&
967 ( SPEC_SCLS(sym->etype) != S_AUTO &&
968 SPEC_SCLS(sym->etype) != S_FIXED &&
969 SPEC_SCLS(sym->etype) != S_REGISTER &&
970 SPEC_SCLS(sym->etype) != S_STACK &&
971 SPEC_SCLS(sym->etype) != S_XSTACK &&
972 SPEC_SCLS(sym->etype) != S_CONSTANT )) {
974 werror(E_AUTO_ASSUMED,sym->name) ;
975 SPEC_SCLS(sym->etype) = S_AUTO ;
978 /* automatic symbols cannot be given */
979 /* an absolute address ignore it */
981 SPEC_ABSA(sym->etype) &&
982 (options.stackAuto || reentrant) ) {
983 werror(E_AUTO_ABSA,sym->name);
984 SPEC_ABSA(sym->etype) = 0 ;
987 /* arrays & pointers cannot be defined for bits */
988 /* SBITS or SFRs or BIT */
989 if ((IS_ARRAY(sym->type) || IS_PTR(sym->type)) &&
990 ( SPEC_NOUN(sym->etype) == V_BIT ||
991 SPEC_NOUN(sym->etype) == V_SBIT ||
992 SPEC_SCLS(sym->etype) == S_SFR ))
993 werror(E_BIT_ARRAY,sym->name);
995 /* if this is a bit|sbit then set length & start */
996 if (SPEC_NOUN(sym->etype) == V_BIT ||
997 SPEC_NOUN(sym->etype) == V_SBIT ) {
998 SPEC_BLEN(sym->etype) = 1 ;
999 SPEC_BSTR(sym->etype) = 0 ;
1002 /* variables declared in CODE space must have */
1003 /* initializers if not an extern */
1004 if (SPEC_SCLS(sym->etype) == S_CODE &&
1005 sym->ival == NULL &&
1007 port->mem.code_ro &&
1008 !IS_EXTERN(sym->etype))
1009 werror(E_CODE_NO_INIT,sym->name);
1011 /* if parameter or local variable then change */
1012 /* the storage class to reflect where the var will go */
1013 if ( sym->level && SPEC_SCLS(sym->etype) == S_FIXED) {
1014 if ( options.stackAuto || (currFunc && IS_RENT(currFunc->etype)))
1016 SPEC_SCLS(sym->etype) = (options.useXstack ?
1017 S_XSTACK : S_STACK ) ;
1021 /* hack-o-matic! I see no reason why the useXstack option should ever
1022 * control this allcoation, but the code was originally that way, and
1023 * changing it for non-390 ports breaks the compiler badly.
1025 bool useXdata = IS_DS390_PORT ? options.model : options.useXstack;
1026 SPEC_SCLS(sym->etype) = (useXdata ?
1027 S_XDATA : S_FIXED ) ;
1032 /*------------------------------------------------------------------*/
1033 /* changePointer - change pointer to functions */
1034 /*------------------------------------------------------------------*/
1035 void changePointer (symbol *sym)
1039 /* go thru the chain of declarations */
1040 /* if we find a pointer to a function */
1041 /* unconditionally change it to a ptr */
1043 for ( p = sym->type ; p ; p = p->next) {
1044 if ( !IS_SPEC(p) && DCL_TYPE(p) == UPOINTER)
1045 DCL_TYPE(p) = GPOINTER ;
1046 if ( IS_PTR(p) && IS_FUNC(p->next))
1047 DCL_TYPE(p) = CPOINTER ;
1051 /*------------------------------------------------------------------*/
1052 /* checkDecl - does semantic validation of a declaration */
1053 /*------------------------------------------------------------------*/
1054 int checkDecl ( symbol *sym )
1057 checkSClass (sym); /* check the storage class */
1058 changePointer(sym); /* change pointers if required */
1060 /* if this is an array without any dimension
1061 then update the dimension from the initial value */
1062 if (IS_ARRAY(sym->type) && !DCL_ELEM(sym->type))
1063 DCL_ELEM(sym->type) = getNelements (sym->type,sym->ival);
1068 /*------------------------------------------------------------------*/
1069 /* copyLinkChain - makes a copy of the link chain & rets ptr 2 head */
1070 /*------------------------------------------------------------------*/
1071 link *copyLinkChain ( link *p)
1073 link *head, *curr , *loop;
1076 head = loop = ( curr ? newLink() : (void *) NULL) ;
1078 memcpy(loop,curr,sizeof(link)) ; /* copy it */
1079 loop->next = (curr->next ? newLink() : (void *) NULL) ;
1088 /*------------------------------------------------------------------*/
1089 /* cleanUpBlock - cleansup the symbol table specified for all the */
1090 /* symbols in the given block */
1091 /*------------------------------------------------------------------*/
1092 void cleanUpBlock ( bucket **table, int block)
1097 /* go thru the entire table */
1098 for ( i = 0 ; i < 256; i++ ) {
1099 for ( chain = table[i]; chain ; chain = chain->next ) {
1100 if (chain->block >= block) {
1101 deleteSym (table,chain->sym,chain->name);
1107 /*------------------------------------------------------------------*/
1108 /* cleanUpLevel - cleansup the symbol table specified for all the */
1109 /* symbols in the given level */
1110 /*------------------------------------------------------------------*/
1111 void cleanUpLevel (bucket **table, int level )
1116 /* go thru the entire table */
1117 for ( i = 0 ; i < 256; i++ ) {
1118 for ( chain = table[i]; chain ; chain = chain->next ) {
1119 if (chain->level >= level) {
1120 deleteSym (table,chain->sym,chain->name);
1126 /*------------------------------------------------------------------*/
1127 /* computeType - computes the resultant type from two types */
1128 /*------------------------------------------------------------------*/
1129 link *computeType ( link *type1, link *type2)
1133 link *etype1 = getSpec(type1);
1134 link *etype2 = getSpec(type2);
1136 /* if one of them is a float then result is a float */
1137 /* here we assume that the types passed are okay */
1138 /* and can be cast to one another */
1139 /* which ever is greater in size */
1140 if (IS_FLOAT(etype1) || IS_FLOAT(etype2))
1141 rType = newFloatLink();
1143 /* if only one of them is a bit variable
1144 then the other one prevails */
1145 if (IS_BITVAR(etype1) && !IS_BITVAR(etype2))
1146 rType = copyLinkChain(type2);
1148 if (IS_BITVAR(etype2) && !IS_BITVAR(etype1))
1149 rType = copyLinkChain(type1);
1151 /* if one of them is a pointer then that
1154 rType = copyLinkChain(type1);
1157 rType = copyLinkChain(type2);
1159 if (getSize (type1) > getSize(type2) )
1160 rType = copyLinkChain(type1);
1162 rType = copyLinkChain(type2);
1164 reType = getSpec(rType);
1166 /* if either of them unsigned then make this unsigned */
1167 if ((SPEC_USIGN(etype1) || SPEC_USIGN(etype2)) && !IS_FLOAT(reType))
1168 SPEC_USIGN(reType) = 1;
1170 /* if result is a literal then make not so */
1171 if (IS_LITERAL(reType))
1172 SPEC_SCLS(reType) = S_REGISTER ;
1177 /*------------------------------------------------------------------*/
1178 /* checkType - will do type check return 1 if match */
1179 /*------------------------------------------------------------------*/
1180 int checkType ( link *dest, link *src )
1191 /* if dest is a declarator then */
1192 if (IS_DECL(dest)) {
1194 if (DCL_TYPE(src) == DCL_TYPE(dest))
1195 return checkType(dest->next,src->next);
1197 if (IS_PTR(src) && IS_PTR(dest))
1200 if (IS_PTR(dest) && IS_ARRAY(src))
1203 if (IS_PTR(dest) && IS_FUNC(dest->next) && IS_FUNC(src))
1204 return -1 * checkType (dest->next,src) ;
1209 if (IS_PTR(dest) && IS_INTEGRAL(src))
1215 /* if one is a specifier and the other is not */
1216 if ((IS_SPEC(src) && !IS_SPEC(dest)) ||
1217 (IS_SPEC(dest) && !IS_SPEC(src))) return 0;
1219 /* if one of them is a void then ok */
1220 if (SPEC_NOUN(dest) == V_VOID &&
1221 SPEC_NOUN(src) != V_VOID )
1224 if (SPEC_NOUN(dest) != V_VOID &&
1225 SPEC_NOUN(src) == V_VOID )
1228 /* char === to short */
1229 if (SPEC_NOUN(dest) == V_CHAR &&
1230 SPEC_NOUN(src) == V_INT &&
1232 return (SPEC_USIGN(src) == SPEC_USIGN(dest) ? 1 : -2);
1234 if (SPEC_NOUN(src) == V_CHAR &&
1235 SPEC_NOUN(dest) == V_INT &&
1237 return (SPEC_USIGN(src) == SPEC_USIGN(dest) ? 1 : -2);
1239 /* if they are both bitfields then if the lengths
1240 and starts don't match */
1241 if (IS_BITFIELD(dest) && IS_BITFIELD(src) &&
1242 (SPEC_BLEN(dest) != SPEC_BLEN(src) ||
1243 SPEC_BSTR(dest) != SPEC_BSTR(src)))
1246 /* it is a specifier */
1247 if (SPEC_NOUN(dest) != SPEC_NOUN(src)) {
1248 if (SPEC_USIGN(dest) == SPEC_USIGN(src) &&
1249 IS_INTEGRAL(dest) && IS_INTEGRAL(src) &&
1250 getSize(dest) == getSize(src))
1253 if (IS_ARITHMETIC(dest) && IS_ARITHMETIC(src))
1259 if (IS_STRUCT(dest)) {
1260 if (SPEC_STRUCT(dest) != SPEC_STRUCT(src))
1265 if (SPEC_LONG(dest) != SPEC_LONG(src))
1268 if (SPEC_SHORT(dest) != SPEC_SHORT(src))
1271 if (SPEC_USIGN(dest) != SPEC_USIGN(src))
1277 /*------------------------------------------------------------------*/
1278 /* inCalleeSaveList - return 1 if found in calle save list */
1279 /*------------------------------------------------------------------*/
1280 bool inCalleeSaveList ( char *s)
1284 for (i = 0 ; options.calleeSaves[i] ; i++ )
1285 if (strcmp(options.calleeSaves[i],s) == 0)
1291 /*------------------------------------------------------------------*/
1292 /* checkFunction - does all kinds of check on a function */
1293 /*------------------------------------------------------------------*/
1294 int checkFunction (symbol *sym)
1297 value *exargs, *acargs ;
1300 /* if not type then some kind of error */
1304 /* if the function has no type then make it return int */
1305 if ( !sym->type->next )
1306 sym->type->next = sym->etype = newIntLink();
1308 /* function cannot return aggregate */
1309 if (IS_AGGREGATE(sym->type->next)) {
1310 werror(E_FUNC_AGGR,sym->name);
1314 /* function cannot return bit */
1315 if (IS_BITVAR(sym->type->next)) {
1316 werror(E_FUNC_BIT,sym->name);
1320 /* check if this function is defined as calleeSaves
1321 then mark it as such */
1322 sym->calleeSave = inCalleeSaveList(sym->name);
1324 /* if interrupt service routine */
1325 /* then it cannot have arguments */
1326 if ( sym->args && IS_ISR(sym->etype) && !IS_VOID(sym->args->type)) {
1327 werror(E_INT_ARGS,sym->name);
1331 if (!(csym = findSym (SymbolTab, sym, sym->name )))
1332 return 1 ; /* not defined nothing more to check */
1334 /* check if body already present */
1335 if ( csym && csym->fbody ) {
1336 werror(E_FUNC_BODY,sym->name);
1340 /* check the return value type */
1341 if (checkType (csym->type,sym->type) <= 0) {
1342 werror(E_PREV_DEF_CONFLICT,csym->name,"type") ;
1343 werror (E_CONTINUE,"previous defintion type ");
1344 printTypeChain(csym->type,stderr);fprintf(stderr,"\n");
1345 werror (E_CONTINUE,"current definition type ");
1346 printTypeChain(sym->type,stderr);fprintf(stderr,"\n");
1350 if ( SPEC_INTRTN(csym->etype) != SPEC_INTRTN(sym->etype)) {
1351 werror (E_PREV_DEF_CONFLICT,csym->name,"interrupt");
1355 if (SPEC_BANK(csym->etype) != SPEC_BANK(sym->etype)) {
1356 werror (E_PREV_DEF_CONFLICT,csym->name,"using");
1360 /* compare expected agrs with actual args */
1361 exargs = csym->args ;
1362 acargs = sym->args ;
1364 /* for all the expected args do */
1367 exargs = exargs->next, acargs = acargs->next, argCnt++ ) {
1368 if ( checkType(exargs->type,acargs->type) <= 0) {
1369 werror(E_ARG_TYPE,argCnt);
1374 /* if one them ended we have a problem */
1375 if ((exargs && !acargs && !IS_VOID(exargs->type)) ||
1376 (!exargs && acargs && !IS_VOID(acargs->type)))
1377 werror(E_ARG_COUNT);
1379 /* replace with this defition */
1380 sym->cdef = csym->cdef;
1381 deleteSym (SymbolTab,csym,csym->name);
1382 addSym (SymbolTab,sym,sym->name,sym->level,sym->block);
1383 if (IS_EXTERN(csym->etype) && !
1384 IS_EXTERN(sym->etype)) {
1385 addSet(&publics,sym);
1390 /*-----------------------------------------------------------------*/
1391 /* processFuncArgs - does some processing with function args */
1392 /*-----------------------------------------------------------------*/
1393 void processFuncArgs (symbol *func, int ignoreName)
1399 /* if this function has variable argument list */
1400 /* then make the function a reentrant one */
1402 SPEC_RENT(func->etype) = 1;
1404 /* check if this function is defined as calleeSaves
1405 then mark it as such */
1406 func->calleeSave = inCalleeSaveList(func->name);
1408 val = func->args; /* loop thru all the arguments */
1410 /* if it is void then remove parameters */
1411 if (val && IS_VOID(val->type)) {
1416 /* reset regparm for the port */
1417 (*port->reset_regparms)();
1418 /* if any of the arguments is an aggregate */
1419 /* change it to pointer to the same type */
1421 /* mark it as a register parameter if
1422 the function does not have VA_ARG
1423 and as port dictates
1424 not inhibited by command line option or #pragma */
1425 if (!func->hasVargs &&
1426 !options.noregparms &&
1427 !IS_RENT(func->etype) &&
1428 (*port->reg_parm)(val->type)) {
1429 SPEC_REGPARM(val->etype) = 1;
1432 if ( IS_AGGREGATE(val->type)) {
1433 /* if this is a structure */
1434 /* then we need to add a new link */
1435 if (IS_STRUCT(val->type)) {
1436 /* first lets add DECLARATOR type */
1437 link *p = val->type ;
1439 werror(W_STRUCT_AS_ARG,val->name);
1440 val->type = newLink();
1441 val->type->next = p ;
1444 /* change to a pointer depending on the */
1445 /* storage class specified */
1446 switch (SPEC_SCLS(val->etype)) {
1448 DCL_TYPE(val->type) = IPOINTER;
1451 DCL_TYPE(val->type) = PPOINTER;
1457 DCL_TYPE(val->type) = POINTER ;
1460 DCL_TYPE(val->type) = CPOINTER;
1463 DCL_TYPE(val->type) = FPOINTER;
1466 DCL_TYPE(val->type) = EEPPOINTER;
1469 DCL_TYPE(val->type) = GPOINTER;
1472 /* is there is a symbol associated then */
1473 /* change the type of the symbol as well*/
1475 val->sym->type = copyLinkChain(val->type);
1476 val->sym->etype = getSpec(val->sym->type);
1484 /* if this function is reentrant or */
1485 /* automatics r 2b stacked then nothing */
1486 if (IS_RENT(func->etype) || options.stackAuto )
1493 /* if a symbolname is not given */
1494 /* synthesize a variable name */
1497 sprintf(val->name,"_%s_PARM_%d",func->name,pNum++);
1498 val->sym = newSymbol(val->name,1);
1499 SPEC_OCLS(val->etype) = port->mem.default_local_map;
1500 val->sym->type = copyLinkChain (val->type);
1501 val->sym->etype = getSpec (val->sym->type);
1502 val->sym->_isparm = 1;
1503 strcpy (val->sym->rname,val->name);
1504 SPEC_STAT(val->etype) = SPEC_STAT(val->sym->etype) =
1505 SPEC_STAT(func->etype);
1506 addSymChain(val->sym);
1509 else /* symbol name given create synth name */ {
1511 sprintf(val->name,"_%s_PARM_%d",func->name,pNum++);
1512 strcpy (val->sym->rname,val->name);
1513 val->sym->_isparm = 1;
1514 SPEC_OCLS(val->etype) = SPEC_OCLS(val->sym->etype) =
1515 (options.model != MODEL_SMALL ? xdata : data);
1516 SPEC_STAT(val->etype) = SPEC_STAT(val->sym->etype) =
1517 SPEC_STAT(func->etype);
1523 /*-----------------------------------------------------------------*/
1524 /* isSymbolEqual - compares two symbols return 1 if they match */
1525 /*-----------------------------------------------------------------*/
1526 int isSymbolEqual (symbol *dest, symbol *src)
1528 /* if pointers match then equal */
1532 /* if one of them is null then don't match */
1536 /* if both of them have rname match on rname */
1537 if (dest->rname[0] && src->rname[0])
1538 return (!strcmp(dest->rname,src->rname));
1540 /* otherwise match on name */
1541 return (!strcmp(dest->name,src->name));
1544 /*-----------------------------------------------------------------*/
1545 /* printTypeChain - prints the type chain in human readable form */
1546 /*-----------------------------------------------------------------*/
1547 void printTypeChain (link *type, FILE *of)
1557 if (IS_DECL(type)) {
1558 switch (DCL_TYPE(type)) {
1560 fprintf (of,"function ");
1563 fprintf (of,"_generic * ");
1564 if (DCL_PTR_CONST(type))
1565 fprintf(of,"const ");
1568 fprintf (of,"_code * ");
1569 if (DCL_PTR_CONST(type))
1570 fprintf(of,"const ");
1573 fprintf (of,"_far * ");
1574 if (DCL_PTR_CONST(type))
1575 fprintf(of,"const ");
1578 fprintf (of,"_eeprom * ");
1579 if (DCL_PTR_CONST(type))
1580 fprintf(of,"const ");
1584 fprintf (of,"_near * ");
1585 if (DCL_PTR_CONST(type))
1586 fprintf(of,"const ");
1589 fprintf (of,"_idata *");
1590 if (DCL_PTR_CONST(type))
1591 fprintf(of,"const ");
1594 fprintf (of,"_pdata *");
1595 if (DCL_PTR_CONST(type))
1596 fprintf(of,"const ");
1599 fprintf (of," _unkown *");
1600 if (DCL_PTR_CONST(type))
1601 fprintf(of,"const ");
1605 fprintf (of,"array of ");
1609 if (SPEC_VOLATILE(type))
1610 fprintf (of,"volatile ");
1611 if (SPEC_USIGN(type))
1612 fprintf (of,"unsigned ");
1614 switch (SPEC_NOUN(type)) {
1617 fprintf (of,"long ");
1620 fprintf (of,"short ");
1622 fprintf (of,"int ");
1626 fprintf(of,"char ");
1630 fprintf(of,"void ");
1634 fprintf(of,"float ");
1638 fprintf(of,"struct %s",SPEC_STRUCT(type)->tag);
1642 fprintf(of,"sbit ");
1646 fprintf(of,"bit {%d,%d}",SPEC_BSTR(type),SPEC_BLEN(type));
1659 /*-----------------------------------------------------------------*/
1660 /* cdbTypeInfo - print the type information for debugger */
1661 /*-----------------------------------------------------------------*/
1662 void cdbTypeInfo (link *type,FILE *of)
1664 fprintf(of,"{%d}",getSize(type));
1666 if (IS_DECL(type)) {
1667 switch (DCL_TYPE(type)) {
1693 fprintf (of,"DA%d,",DCL_ELEM(type));
1699 switch (SPEC_NOUN(type)) {
1723 fprintf(of,"ST%s",SPEC_STRUCT(type)->tag);
1731 fprintf(of,"SB%d$%d",SPEC_BSTR(type),SPEC_BLEN(type));
1738 if (SPEC_USIGN(type))
1746 /*-----------------------------------------------------------------*/
1747 /* cdbSymbol - prints a symbol & its type information for debugger */
1748 /*-----------------------------------------------------------------*/
1749 void cdbSymbol ( symbol *sym, FILE *of, int isStructSym, int isFunc)
1761 fprintf(of,"S:"); /* symbol record */
1762 /* if this is not a structure symbol then
1763 we need to figure out the scope information */
1767 if (IS_STATIC(sym->etype))
1768 fprintf(of,"F%s$",moduleName); /* scope is file */
1770 fprintf(of,"G$"); /* scope is global */
1773 /* symbol is local */
1774 fprintf(of,"L%s$",(sym->localof ? sym->localof->name : "-null-"));
1776 fprintf(of,"S$"); /* scope is structure */
1778 /* print the name, & mangled name */
1779 fprintf(of,"%s$%d$%d(",sym->name,
1780 sym->level,sym->block);
1782 cdbTypeInfo(sym->type,of);
1785 /* print the address space */
1786 map = SPEC_OCLS(sym->etype);
1787 fprintf(of,"%c,%d,%d",
1788 (map ? map->dbName : 'Z') ,sym->onStack,SPEC_STAK(sym->etype));
1790 /* if assigned to registers then output register names */
1791 /* if this is a function then print
1792 if is it an interrupt routine & interrupt number
1793 and the register bank it is using */
1795 fprintf(of,",%d,%d,%d",SPEC_INTRTN(sym->etype),
1796 SPEC_INTN(sym->etype),SPEC_BANK(sym->etype));
1797 /* alternate location to find this symbol @ : eg registers
1804 /*-----------------------------------------------------------------*/
1805 /* cdbStruct - print a structure for debugger */
1806 /*-----------------------------------------------------------------*/
1807 void cdbStruct ( structdef *sdef,int block,FILE *of,
1808 int inStruct, char *tag)
1813 /* if block # then must have function scope */
1814 fprintf(of,"F%s$",moduleName);
1815 fprintf(of,"%s[",(tag ? tag : sdef->tag));
1816 for (sym=sdef->fields ; sym ; sym = sym->next) {
1817 fprintf(of,"({%d}",sym->offset);
1818 cdbSymbol(sym,of,TRUE,FALSE);
1826 /*------------------------------------------------------------------*/
1827 /* cdbStructBlock - calls struct printing for a blcks */
1828 /*------------------------------------------------------------------*/
1829 void cdbStructBlock (int block , FILE *of)
1832 bucket **table = StructTab;
1836 /* go thru the entire table */
1837 for ( i = 0 ; i < 256; i++ ) {
1838 for ( chain = table[i]; chain ; chain = chain->next ) {
1839 if (chain->block >= block) {
1840 cdbStruct((structdef *)chain->sym, chain->block ,of,0,NULL);
1846 /*-----------------------------------------------------------------*/
1847 /* powof2 - returns power of two for the number if number is pow 2 */
1848 /*-----------------------------------------------------------------*/
1849 int powof2 (unsigned long num)
1855 if (num & 1) n1s++ ;
1860 if (n1s > 1 || nshifts == 0) return 0;
1861 return nshifts - 1 ;
1875 /* Dims: mul/div/mod, BYTE/WORD/DWORD, SIGNED/UNSIGNED */
1876 symbol *__muldiv[3][3][2];
1877 /* Dims: BYTE/WORD/DWORD SIGNED/UNSIGNED */
1878 link *__multypes[3][2];
1879 /* Dims: to/from float, BYTE/WORD/DWORD, SIGNED/USIGNED */
1880 symbol *__conv[2][3][2];
1884 static void _makeRegParam(symbol *sym)
1888 val = sym->args; /* loop thru all the arguments */
1890 /* reset regparm for the port */
1891 (*port->reset_regparms)();
1893 SPEC_REGPARM(val->etype) = 1;
1894 sym->argStack -= getSize(val->type);
1899 /*-----------------------------------------------------------------*/
1900 /* initCSupport - create functions for C support routines */
1901 /*-----------------------------------------------------------------*/
1902 void initCSupport ()
1904 const char *smuldivmod[] = {
1907 const char *sbwd[] = {
1908 "char", "int", "long"
1910 const char *ssu[] = {
1914 int bwd, su, muldivmod, tofrom;
1916 floatType= newFloatLink();
1918 for (bwd = 0; bwd < 3; bwd++) {
1933 __multypes[bwd][0] = l;
1934 __multypes[bwd][1] = copyLinkChain(l);
1935 SPEC_USIGN(__multypes[bwd][1]) = 1;
1938 __fsadd = funcOfType ("__fsadd", floatType, floatType, 2, options.float_rent);
1939 __fssub = funcOfType ("__fssub", floatType, floatType, 2, options.float_rent);
1940 __fsmul = funcOfType ("__fsmul", floatType, floatType, 2, options.float_rent);
1941 __fsdiv = funcOfType ("__fsdiv", floatType, floatType, 2, options.float_rent);
1942 __fseq = funcOfType ("__fseq", CHARTYPE, floatType, 2, options.float_rent);
1943 __fsneq = funcOfType ("__fsneq", CHARTYPE, floatType, 2, options.float_rent);
1944 __fslt = funcOfType ("__fslt", CHARTYPE, floatType, 2, options.float_rent);
1945 __fslteq= funcOfType ("__fslteq", CHARTYPE, floatType, 2, options.float_rent);
1946 __fsgt = funcOfType ("__fsgt", CHARTYPE, floatType, 2, options.float_rent);
1947 __fsgteq= funcOfType ("__fsgteq", CHARTYPE, floatType, 2, options.float_rent);
1949 for (tofrom = 0; tofrom < 2; tofrom++) {
1950 for (bwd = 0; bwd < 3; bwd++) {
1951 for (su = 0; su < 2; su++) {
1953 sprintf(buffer, "__fs2%s%s", ssu[su], sbwd[bwd]);
1954 __conv[tofrom][bwd][su] = funcOfType(buffer, __multypes[bwd][su], floatType, 1, options.float_rent);
1957 sprintf(buffer, "__%s%s2fs", ssu[su], sbwd[bwd]);
1958 __conv[tofrom][bwd][su] = funcOfType(buffer, floatType, __multypes[bwd][su], 1, options.float_rent);
1964 for (muldivmod = 0; muldivmod < 3; muldivmod++) {
1965 for (bwd = 0; bwd < 3; bwd++) {
1966 for (su = 0; su < 2; su++) {
1967 sprintf(buffer, "_%s%s%s",
1968 smuldivmod[muldivmod],
1971 __muldiv[muldivmod][bwd][su] = funcOfType(buffer, __multypes[bwd][su], __multypes[bwd][su], 2, options.intlong_rent);
1972 SPEC_NONBANKED(__muldiv[muldivmod][bwd][su]->etype) = 1;
1973 if (bwd < port->muldiv.force_reg_param_below)
1974 _makeRegParam(__muldiv[muldivmod][bwd][su]);