7 # include "lclintMacros.nf"
10 # include "cgrammar_tokens.h"
12 # include "exprChecks.h"
13 # include "exprNodeSList.h"
15 //# include "constraintExpr.h"
22 /*@access exprNode constraintExpr@*/
25 static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/constraintExpr p_expr, int p_literal);
28 /*@only@*/ static constraintExpr
29 doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr p_e, /*@temp@*/ /*@observer@*/ exprNodeList p_arglist) /*@modifies p_e@*/;
31 static /*@only@*/ constraintExpr
32 doFixResultTerm (/*@only@*/ constraintExpr p_e, /*@exposed@*/ exprNode p_fcnCall)
36 /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void) ; /// @allocates result->data @ @sets result->kind @;
38 //constraintExpr constraintExpr_makeMaxSetConstraintExpr (constraintExpr c);
40 void constraintExpr_free (/*@only@*/ constraintExpr expr)
42 if (constraintExpr_isDefined(expr) )
47 constraintExprData_freeUnaryExpr(expr->data);
50 constraintExprData_freeBinaryExpr(expr->data);
53 constraintExprData_freeTerm(expr->data);
64 llcontbug(message("attempted to free null pointer in constraintExpr_free"));
68 bool constraintExpr_isLit (constraintExpr expr)
70 llassert (expr != NULL);
72 if (expr->kind == term)
74 constraintTerm term = constraintExprData_termGetTerm (expr->data);
75 if (constraintTerm_isIntLiteral (term) )
84 static bool isZeroBinaryOp (constraintExpr expr)
88 llassert (expr != NULL); /* evans 2001-07-18 */
90 if (!constraintExpr_isBinaryExpr (expr) )
96 e2 = constraintExprData_binaryExprGetExpr2(expr->data);
98 llassert (e2 != NULL); /* evans 2001-07-18 */
100 if (constraintExpr_isBinaryExpr (e2) )
103 constraintExprBinaryOpKind op;
105 op = constraintExprData_binaryExprGetOp (e2->data);
107 e1 = constraintExprData_binaryExprGetExpr1(e2->data);
109 if (constraintExpr_isLit(e1) )
111 if (constraintExpr_getValue(e1) == 0 )
120 /* change expr + (o - expr) to (expr -expr) */
122 /*@only@*/ static constraintExpr removeZero (/*@only@*/ /*@returned@*/ constraintExpr expr)
124 constraintExpr expr1, expr2;
128 constraintExprBinaryOpKind op;
130 constraintExprBinaryOpKind tempOp;
132 if (!isZeroBinaryOp(expr) )
135 llassert (expr != NULL); /* evans 2001-07-18 */
137 expr1 = constraintExprData_binaryExprGetExpr1(expr->data);
138 expr2 = constraintExprData_binaryExprGetExpr2(expr->data);
139 op = constraintExprData_binaryExprGetOp(expr->data);
141 llassert( constraintExpr_isBinaryExpr(expr2) );
143 temp = constraintExprData_binaryExprGetExpr2 (expr2->data);
144 temp = constraintExpr_copy (temp);
146 tempOp = constraintExprData_binaryExprGetOp (expr2->data);
150 else if (op == MINUS)
154 else if (tempOp == MINUS)
162 /*@i834@*/ constraintExpr_free(expr2);
164 expr->data = constraintExprData_binaryExprSetExpr2(expr->data, temp);
165 expr->data = constraintExprData_binaryExprSetOp(expr->data, op);
171 /*@only@*/ constraintExpr constraintExpr_propagateConstants (/*@only@*/ constraintExpr expr,
172 /*@out@*/ bool * propagate,
173 /*@out@*/ int *literal)
175 constraintExpr expr1;
176 constraintExpr expr2;
177 bool propagate1, propagate2;
178 int literal1, literal2;
179 constraintExprBinaryOpKind op;
190 llassert (expr != NULL);
192 // we simplify unaryExpr else where
193 if (expr->kind != binaryexpr)
196 op = constraintExprData_binaryExprGetOp (expr->data);
198 DPRINTF( (message("constraintExpr_propagateConstants: binaryexpr: %s", constraintExpr_unparse(expr) ) ) );
200 expr = removeZero(expr);
202 expr1 = constraintExprData_binaryExprGetExpr1(expr->data);
203 expr2 = constraintExprData_binaryExprGetExpr2(expr->data);
205 expr1 = constraintExpr_copy(expr1);
206 expr2 = constraintExpr_copy(expr2);
208 expr1 = constraintExpr_propagateConstants (expr1, &propagate1, &literal1);
209 expr2 = constraintExpr_propagateConstants (expr2, &propagate2, &literal2);
211 *propagate = propagate1 || propagate2;
214 *literal = literal1 + literal2;
215 else if (op == MINUS)
216 *literal = literal1 - literal2;
220 if ( constraintExpr_isLit (expr1) && constraintExpr_isLit (expr2) )
223 t1 = constraintExpr_getValue (expr1);
224 t2 = constraintExpr_getValue (expr2);
225 llassert(*propagate == FALSE);
228 constraintExpr_free (expr);
229 constraintExpr_free (expr1);
230 constraintExpr_free (expr2);
233 return (constraintExpr_makeIntLiteral ( (t1+t2) ));
234 else if (op == MINUS)
235 return (constraintExpr_makeIntLiteral ( (t1-t2) ));
241 if (constraintExpr_isLit (expr1) )
245 *literal += constraintExpr_getValue (expr1);
249 constraintExpr_free(expr1);
250 constraintExpr_free(expr);
253 else if (op == MINUS)
257 /* this is an ugly kludge to deal with not
258 having a unary minus operation...*/
260 temp = constraintExpr_makeIntLiteral (0);
261 temp = constraintExpr_makeSubtractExpr (temp, expr2);
263 constraintExpr_free(expr1);
264 constraintExpr_free(expr);
270 BADBRANCH; /* evans 2001-07-18 */
274 if (constraintExpr_isLit (expr2) )
279 *literal += constraintExpr_getValue (expr2);
280 else if (op == MINUS)
281 *literal -= constraintExpr_getValue (expr2);
286 constraintExpr_free(expr2);
287 constraintExpr_free(expr);
291 DPRINTF( (message("constraintExpr_propagateConstants returning: %s", constraintExpr_unparse(expr) ) ) );
293 expr->data = constraintExprData_binaryExprSetExpr1 (expr->data, expr1);
294 expr->data = constraintExprData_binaryExprSetExpr2 (expr->data, expr2);
296 expr = removeZero(expr);
300 /*@only@*/ static constraintExpr constraintExpr_combineConstants (/*@only@*/ constraintExpr expr ) /*@modifies expr@*/
305 DPRINTF ( (message ("Before combine %s", constraintExpr_unparse(expr) ) ) );
306 expr = constraintExpr_propagateConstants (expr, &propagate, &literal);
315 ret = constraintExpr_makeBinaryOpConstraintExprIntLiteral (expr, literal);
319 DPRINTF ( (message ("After combine %s", constraintExpr_unparse(expr) ) ) );
324 static constraintExpr constraintExpr_alloc (void) /*@post:isnull result->data@*/
327 ret = dmalloc (sizeof (*ret) );
333 /*@only@*/ static constraintExprData copyExprData (/*@observer@*/ constraintExprData data, constraintExprKind kind)
335 constraintExprData ret;
336 llassert(constraintExprData_isDefined(data));
341 ret = constraintExprData_copyBinaryExpr(data);
344 ret = constraintExprData_copyUnaryExpr(data);
347 ret = constraintExprData_copyTerm(data);
355 constraintExpr constraintExpr_copy (constraintExpr expr)
358 ret = constraintExpr_alloc();
359 ret->kind = expr->kind;
361 ret->data = copyExprData (expr->data, expr->kind);
366 /*@only@*/ static constraintExpr oldconstraintExpr_makeTermExprNode ( /*@dependent@*/ exprNode e)
370 ret = constraintExpr_alloc();
372 ret->data = dmalloc (sizeof *(ret->data) );
373 t = constraintTerm_makeExprNode (e);
374 ret->data = constraintExprData_termSetTerm (ret->data, t);
378 constraintExpr constraintExpr_makeExprNode (exprNode e)
381 constraintExpr ret, ce1, ce2;
387 llassert (e != NULL);
394 t = exprData_getSingle (data);
395 s = exprNode_getSref (t);
396 if (sRef_isFixedArray(s) )
400 size = (int) sRef_getArraySize(s);
401 ret = constraintExpr_makeIntLiteral (size);
405 DPRINTF ((message ("could not determine the size of %s", exprNode_unparse (e) ) ) );
406 ret = oldconstraintExpr_makeTermExprNode (e);
411 DPRINTF ((message ("Examining operation %s", exprNode_unparse (e) ) ) );
412 t1 = exprData_getOpA (data);
413 t2 = exprData_getOpB (data);
414 tok = exprData_getOpTok (data);
416 if (lltok_isPlus_Op (tok) || lltok_isMinus_Op (tok) )
418 ce1 = constraintExpr_makeExprNode (t1);
419 ce2 = constraintExpr_makeExprNode (t2);
420 ret = constraintExpr_parseMakeBinaryOp (ce1, tok, ce2);
424 ret = oldconstraintExpr_makeTermExprNode (e);
428 t = exprData_getUopNode (data);
429 ret = constraintExpr_makeExprNode (t);
433 t = exprData_getUopNode (data);
434 tok = exprData_getUopTok (data);
435 if (lltok_isInc_Op (tok) )
438 temp = constraintExpr_makeExprNode(t);
439 ret = constraintExpr_makeIncConstraintExpr(temp);
441 else if (lltok_isDec_Op (tok) )
444 temp = constraintExpr_makeExprNode(t);
445 ret = constraintExpr_makeDecConstraintExpr(temp);
448 ret = oldconstraintExpr_makeTermExprNode (e);
452 t = exprData_getUopNode (data);
453 ret = constraintExpr_makeExprNode (t);
456 t = exprData_getCastNode (data);
457 ret = constraintExpr_makeExprNode (t);
460 t = exprData_getPairA(data);
461 ret = constraintExpr_makeExprNode(t);
462 /*@i3434*/ /*I'm not sure if this is right. I'm adding a break to quite LCLint*/
465 ret = oldconstraintExpr_makeTermExprNode (e);
471 /*@only@*/ constraintExpr constraintExpr_makeTermExprNode (/*@exposed@*/ exprNode e)
473 return oldconstraintExpr_makeTermExprNode(e); //constraintExpr_makeExprNode (e);
476 static constraintExpr constraintExpr_makeTerm (/*@only@*/ constraintTerm t)
480 ret = constraintExpr_alloc();
482 ret->data = dmalloc (sizeof *(ret->data) );
483 ret->data = constraintExprData_termSetTerm (ret->data, t);
488 constraintExpr constraintExpr_makeTermsRef (/*@temp@*/ sRef s)
492 ret = constraintExpr_alloc();
494 ret->data = dmalloc (sizeof *(ret->data) );
495 t = constraintTerm_makesRef (s);
496 ret->data = constraintExprData_termSetTerm (ret->data, t);
500 /*@special@*/ static constraintExpr makeUnaryOpGeneric (void) /*@allocates result->data@*/ /*@defines result->kind@*/
503 ret = constraintExpr_alloc();
504 ret->kind = unaryExpr;
505 ret->data = dmalloc ( sizeof *(ret->data) );
509 /*@only@*/ static constraintExpr constraintExpr_makeUnaryOpConstraintExpr (/*@only@*/ constraintExpr cexpr)
512 ret = makeUnaryOpGeneric();
516 ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr);
517 ret->data = constraintExprData_unaryExprSetOp (ret->data, UNARYOP_UNDEFINED);
526 /*@only@*/ static constraintExpr constraintExpr_makeUnaryOp (/*@only@*/ constraintExpr cexpr, constraintExprUnaryOpKind Op )
529 ret = makeUnaryOpGeneric();
531 ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr);
532 ret->data = constraintExprData_unaryExprSetOp (ret->data, Op);
538 static constraintExpr constraintExpr_makeMaxSetConstraintExpr (/*@only@*/ constraintExpr c)
541 ret = constraintExpr_makeUnaryOp (c, MAXSET);
546 static constraintExpr constraintExpr_makeUnaryOpExprNode (/*@exposed@*/ exprNode expr)
550 sub = constraintExpr_makeExprNode (expr);
551 ret = constraintExpr_makeUnaryOpConstraintExpr(sub);
559 static constraintExpr constraintExpr_makeSRefUnaryOp (/*@temp@*/ /*@observer@*/ sRef s, constraintExprUnaryOpKind op)
564 t = constraintExpr_makeTermsRef (s);
565 ret = constraintExpr_makeUnaryOpConstraintExpr (t);
566 ret->data = constraintExprData_unaryExprSetOp (ret->data, op);
572 constraintExpr constraintExpr_makeSRefMaxRead( sRef s)
574 return (constraintExpr_makeSRefUnaryOp (s, MAXREAD) );
578 constraintExpr constraintExpr_makeSRefMaxset ( sRef s)
580 return (constraintExpr_makeSRefUnaryOp (s, MAXSET) );
584 constraintExpr constraintExpr_parseMakeUnaryOp (lltok op, constraintExpr cexpr)
587 ret = constraintExpr_makeUnaryOpConstraintExpr ( cexpr);
592 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXSET);
595 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD);
598 llfatalbug(message("Unhandled Operation in Constraint") );
604 constraintExpr constraintExpr_makeMaxSetExpr (/*@exposed@*/ exprNode expr)
607 ret = constraintExpr_makeExprNode (expr);
609 ret = constraintExpr_makeMaxSetConstraintExpr (ret);
611 llassert (ret != NULL);
616 constraintExpr constraintExpr_makeMaxReadExpr (exprNode expr)
619 ret = constraintExpr_makeUnaryOpExprNode(expr);
620 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD);
625 /*@unused@*/ static constraintExpr constraintExpr_makeMinSetExpr (/*@exposed@*/ exprNode expr)
628 ret = constraintExpr_makeUnaryOpExprNode(expr);
629 ret->data = constraintExprData_unaryExprSetOp (ret->data, MINSET);
634 /*@unused@*/ static constraintExpr constraintExpr_makeMinReadExpr (/*@exposed@*/ exprNode expr)
637 ret = constraintExpr_makeUnaryOpExprNode(expr);
638 ret->data = constraintExprData_unaryExprSetOp (ret->data, MINREAD);
644 constraintExpr constraintExpr_makeValueExpr (/*@exposed@*/ exprNode expr)
647 ret = constraintExpr_makeExprNode (expr);
652 constraintExpr constraintExpr_makeIntLiteral (long i)
656 ret = constraintExpr_alloc();
658 ret->data = dmalloc (sizeof *(ret->data) );
659 t = constraintTerm_makeIntLiteral (i);
660 ret->data = constraintExprData_termSetTerm (ret->data, t);
665 constraintExpr constraintExpr_makeValueInt (int i)
667 return constraintExpr_makeIntLiteral (i);
672 /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void)
673 /*@allocates result->data @*/ /*@sets result->kind @*/
676 ret = constraintExpr_alloc();
677 ret->kind = binaryexpr;
678 ret->data = dmalloc ( sizeof *(ret->data) );
679 // ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED);
684 static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExpr (/*@only@*/constraintExpr expr1, /*@only@*/ constraintExpr expr2)
689 ret = constraintExpr_makeBinaryOp();
690 ret->data = constraintExprData_binaryExprSetExpr1 (ret->data, expr1);
691 ret->data = constraintExprData_binaryExprSetExpr2 (ret->data, expr2);
692 ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED);
697 constraintExpr constraintExpr_parseMakeBinaryOp (/*@only@*/ constraintExpr expr1, lltok op,/*@only@*/ constraintExpr expr2)
700 ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2);
702 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
703 else if (op.tok == TMINUS)
704 ret->data = constraintExprData_binaryExprSetOp(ret->data, MINUS);
713 /*@unused@*/ static constraintExpr constraintExpr_makeBinaryOpExprNode (/*@exposed@*/ exprNode expr1, /*@exposed@*/ exprNode expr2)
716 constraintExpr sub1, sub2;
717 sub1 = constraintExpr_makeTermExprNode (expr1);
718 sub2 = constraintExpr_makeTermExprNode (expr2);
719 ret = constraintExpr_makeBinaryOpConstraintExpr(sub1, sub2);
724 constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/ constraintExpr expr, int literal)
727 constraintExpr constExpr;
729 constExpr = constraintExpr_makeIntLiteral (literal);
730 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, constExpr);
731 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
736 constraintExpr constraintExpr_makeDecConstraintExpr (/*@only@*/constraintExpr expr)
741 inc = constraintExpr_makeIntLiteral (1);
742 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc);
743 ret->data = constraintExprData_binaryExprSetOp(ret->data, MINUS);
748 /*@only@*/ constraintExpr constraintExpr_makeSubtractExpr (/*@only@*/ constraintExpr expr, /*@only@*/ constraintExpr addent)
752 DPRINTF ( (message ("Making subtract expression") ) );
754 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent);
755 ret->data = constraintExprData_binaryExprSetOp (ret->data, MINUS);
760 constraintExpr constraintExpr_makeAddExpr (/*@only@*/
761 constraintExpr expr, /*@only@*/
762 constraintExpr addent)
766 DPRINTF ( (message ("Doing addTerm simplification") ) );
768 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent);
769 ret->data = constraintExprData_binaryExprSetOp (ret->data, PLUS);
775 constraintExpr constraintExpr_makeIncConstraintExpr (/*@only@*/ constraintExpr expr)
780 inc = constraintExpr_makeIntLiteral (1);
781 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc);
782 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
787 static cstring constraintExprUnaryOpKind_print (constraintExprUnaryOpKind op)
792 return message("maxSet");
794 return message("minSet");
796 return message("maxRead");
798 return message("minRead");
801 return message ("<(Unary OP OTHER>");
807 static cstring constraintExprBinaryOpKind_print (constraintExprBinaryOpKind op)
819 return message ("<binary OP Unknown>");
823 bool constraintExpr_similar (constraintExpr expr1, constraintExpr expr2)
825 constraintExprKind kind;
827 llassert (expr1 != NULL);
828 llassert (expr2 != NULL);
829 if (expr1->kind != expr2->kind)
837 return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data),
838 constraintExprData_termGetTerm(expr2->data) );
839 /*@notreached@*/ break;
842 if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) )
845 return (constraintExpr_similar (
846 constraintExprData_unaryExprGetExpr (expr1->data),
847 constraintExprData_unaryExprGetExpr (expr2->data)
851 if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) )
854 if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr1 (expr1->data),
855 constraintExprData_binaryExprGetExpr1 (expr2->data)) )
858 if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr2 (expr1->data),
859 constraintExprData_binaryExprGetExpr2 (expr2->data)) )
874 bool constraintExpr_same (constraintExpr expr1, constraintExpr expr2)
876 constraintExprKind kind;
878 llassert (expr1 != NULL);
879 llassert (expr2 != NULL);
880 if (expr1->kind != expr2->kind)
888 return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data),
889 constraintExprData_termGetTerm(expr2->data) );
890 /*@notreached@*/ break;
893 if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) )
896 return (constraintExpr_same (
897 constraintExprData_unaryExprGetExpr (expr1->data),
898 constraintExprData_unaryExprGetExpr (expr2->data)
903 if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) )
906 if (! constraintExpr_same (constraintExprData_binaryExprGetExpr1 (expr1->data),
907 constraintExprData_binaryExprGetExpr1 (expr2->data)) )
910 if (! constraintExpr_same (constraintExprData_binaryExprGetExpr2 (expr1->data),
911 constraintExprData_binaryExprGetExpr2 (expr2->data)) )
915 /*@notreached@*/ break;
926 bool constraintExpr_search (/*@observer@*/ constraintExpr c, /*@observer@*/ constraintExpr old)
929 constraintExprKind kind;
932 if ( constraintExpr_similar (c, old) )
934 DPRINTF((message ("Found %q",
935 constraintExpr_unparse(old)
947 temp = constraintExprData_unaryExprGetExpr (c->data);
948 ret = ret || constraintExpr_search (temp, old);
952 temp = constraintExprData_binaryExprGetExpr1 (c->data);
953 ret = ret || constraintExpr_search(temp, old);
955 temp = constraintExprData_binaryExprGetExpr2 (c->data);
956 ret = ret || constraintExpr_search(temp, old);
966 /*@only@*/ constraintExpr constraintExpr_searchandreplace (/*@only@*/ /*@unique@*/ constraintExpr c, /*@temp@*/ constraintExpr old, /*@temp@*/ constraintExpr newExpr )
968 constraintExprKind kind;
971 if ( constraintExpr_similar (c, old) )
974 DPRINTF((message ("Replacing %s with %s",
975 constraintExpr_unparse(old), constraintExpr_unparse(newExpr)
977 constraintExpr_free(c);
978 return constraintExpr_copy (newExpr);
988 temp = constraintExprData_unaryExprGetExpr (c->data);
989 temp = constraintExpr_copy(temp);
990 temp = constraintExpr_searchandreplace (temp, old, newExpr);
991 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
995 temp = constraintExprData_binaryExprGetExpr1 (c->data);
996 temp = constraintExpr_copy(temp);
997 temp = constraintExpr_searchandreplace (temp, old, newExpr);
998 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1000 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1001 temp = constraintExpr_copy(temp);
1002 temp = constraintExpr_searchandreplace (temp, old, newExpr);
1003 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1012 static constraintExpr constraintExpr_simplifyChildren (/*@returned@*/ constraintExpr c)
1014 constraintExprKind kind;
1015 constraintExpr temp;
1024 temp = constraintExprData_unaryExprGetExpr (c->data);
1025 temp = constraintExpr_copy(temp);
1026 temp = constraintExpr_simplify (temp);
1027 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1030 DPRINTF((message("constraintExpr_simplfiyChildren: simplify binary expression: %s",constraintExpr_unparse(c) ) ) );
1031 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1032 temp = constraintExpr_copy(temp);
1033 temp = constraintExpr_simplify (temp);
1035 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1037 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1038 temp = constraintExpr_copy(temp);
1039 temp = constraintExpr_simplify (temp);
1041 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1051 constraintExpr constraintExpr_setFileloc (/*@returned@*/ constraintExpr c, fileloc loc) /*@modifies c @*/
1054 constraintExpr temp;
1056 llassert(c != NULL);
1061 t = constraintExprData_termGetTerm (c->data);
1062 t = constraintTerm_copy(t);
1063 t = constraintTerm_setFileloc (t, loc);
1064 c->data = constraintExprData_termSetTerm (c->data, t);
1068 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1069 temp = constraintExpr_copy(temp);
1070 temp = constraintExpr_setFileloc (temp, loc);
1071 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1073 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1074 temp = constraintExpr_copy(temp);
1075 temp = constraintExpr_setFileloc (temp, loc);
1076 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1079 temp = constraintExprData_unaryExprGetExpr (c->data);
1080 temp = constraintExpr_copy(temp);
1081 temp = constraintExpr_setFileloc (temp, loc);
1082 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1088 static /*@only@*/ constraintExpr constraintExpr_simplifybinaryExpr (/*@only@*/constraintExpr c)
1090 constraintExpr e1, e2;
1091 constraintExprBinaryOpKind op;
1093 e1 = constraintExprData_binaryExprGetExpr1 (c->data);
1094 e2 = constraintExprData_binaryExprGetExpr2 (c->data);
1096 if (constraintExpr_canGetValue (e1) && constraintExpr_canGetValue(e2) )
1100 i = constraintExpr_getValue(e1) + constraintExpr_getValue (e2);
1101 constraintExpr_free(c);
1102 c = constraintExpr_makeIntLiteral (i);
1106 op = constraintExprData_binaryExprGetOp (c->data);
1108 if (constraintExpr_similar(e1, e2) )
1110 constraintExpr_free(c);
1111 c = constraintExpr_makeIntLiteral (0);
1119 this thing takes the lexpr and expr of a constraint and modifies lexpr
1120 and returns a (possiblly new) value for expr
1122 /* if lexpr is a binary express say x + y, we set lexpr to x and return a value for expr such as expr_old - y */
1124 /* the approach is a little Kludgy but seems to work. I should probably use something cleaner at some point ... */
1127 /*@only@*/ constraintExpr constraintExpr_solveBinaryExpr (constraintExpr lexpr, /*@only@*/ constraintExpr expr)
1129 constraintExpr expr1, expr2;
1130 constraintExprBinaryOpKind op;
1132 if (lexpr->kind != binaryexpr)
1135 expr2 = constraintExprData_binaryExprGetExpr2 (lexpr->data);
1136 expr1 = constraintExprData_binaryExprGetExpr1 (lexpr->data);
1138 op = constraintExprData_binaryExprGetOp (lexpr->data);
1140 expr1 = constraintExpr_copy(expr1);
1141 expr2 = constraintExpr_copy(expr2);
1143 //drl possible problem : warning make sure this works
1145 lexpr->kind = expr1->kind;
1148 lexpr->data = copyExprData (expr1->data, expr1->kind);
1149 constraintExpr_free(expr1);
1152 expr = constraintExpr_makeSubtractExpr (expr, expr2);
1153 else if (op == MINUS)
1154 expr = constraintExpr_makeAddExpr (expr, expr2);
1162 #warning this needs to be checked
1163 expr = constraintExpr_solveBinaryExpr (expr1, expr);
1165 expr = constraintExpr_solveBinaryExpr (expr2, expr);
1170 static /*@only@*/ constraintExpr constraintExpr_simplifyunaryExpr (/*@only@*/ constraintExpr c)
1174 llassert (c->kind == unaryExpr);
1176 DPRINTF ((message ("Doing constraintExpr_simplifyunaryExpr:%s", constraintExpr_unparse (c) ) ) );
1178 if ( (constraintExprData_unaryExprGetOp (c->data) != MAXSET) &&
1179 (constraintExprData_unaryExprGetOp (c->data) != MAXREAD) )
1183 // pattern mxr ( var + const) = mxr(var) - const
1185 exp = constraintExprData_unaryExprGetExpr (c->data);
1187 if (exp->kind == term)
1189 constraintTerm cterm;
1191 cterm = constraintExprData_termGetTerm (exp->data);
1193 if (constraintTerm_isStringLiteral(cterm) )
1196 val = constraintTerm_getStringLiteral (cterm);
1197 if (constraintExprData_unaryExprGetOp (c->data) == MAXSET)
1199 constraintExpr temp;
1201 temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) );
1203 constraintExpr_free(c);
1206 if (constraintExprData_unaryExprGetOp (c->data) == MAXREAD)
1208 constraintExpr temp;
1210 temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) );
1212 constraintExpr_free(c);
1218 // slight Kludge to hanlde var [] = { , , };
1219 // type syntax I don't think this is sounds but it should be good
1220 // enough. The C stanrad is very confusing about initialization
1223 if (constraintTerm_isInitBlock(cterm) )
1225 constraintExpr temp;
1228 len = constraintTerm_getInitBlockLength(cterm);
1230 temp = constraintExpr_makeIntLiteral (len );
1232 constraintExpr_free(c);
1233 DPRINTF(( message("Changed too %q", constraintExpr_print(temp)
1241 if (exp->kind != binaryexpr)
1244 if (constraintExprData_binaryExprGetOp (exp->data) == PLUS )
1247 // if (constraintExpr_canGetValue (constraintExprData_binaryExprGetExpr2 (exp->data) ) )
1250 constraintExpr temp, temp2;
1252 DPRINTF ( (message ("Doing fancy simplification") ) );
1254 temp = constraintExprData_binaryExprGetExpr2 (exp->data);
1256 temp2 = constraintExprData_binaryExprGetExpr1 (exp->data);
1258 temp2 = constraintExpr_copy(temp2);
1259 c->data = constraintExprData_unaryExprSetExpr (c->data, temp2);
1262 temp = constraintExpr_copy (temp);
1264 c = constraintExpr_makeSubtractExpr (c, temp);
1266 DPRINTF ( (message ("Done fancy simplification:%s", constraintExpr_unparse (c) ) ) );
1270 DPRINTF ( (message ("Done simplification:%s", constraintExpr_unparse (c) ) ) );
1275 /*@only@*/ constraintExpr constraintExpr_simplify (/*@only@*/ constraintExpr c)
1277 constraintExprKind kind;
1281 DPRINTF ( (message ("Doing constraintExpr_simplify:%s", constraintExpr_unparse (c) ) ) );
1286 /*I think this is an LCLint bug */
1288 ret = constraintExpr_copy(c);
1290 constraintExpr_free(c);
1292 ret = constraintExpr_simplifyChildren (ret);
1294 ret = constraintExpr_combineConstants (ret);
1296 ret = constraintExpr_simplifyChildren (ret);
1304 t = constraintExprData_termGetTerm (ret->data);
1305 t = constraintTerm_copy(t);
1306 t = constraintTerm_simplify (t);
1307 ret->data = constraintExprData_termSetTerm (ret->data, t);
1310 ret = constraintExpr_simplifyunaryExpr (ret);
1313 ret = constraintExpr_simplifybinaryExpr (ret);
1319 DPRINTF ( (message ("constraintExpr_simplify returning :%s", constraintExpr_unparse (ret) ) ) );
1325 cstring constraintExpr_unparse (/*@temp@*/ /*@observer@*/ constraintExpr ex) /*@*/
1328 constraintExprKind kind;
1330 llassert (ex != NULL);
1337 st = message ("(%q) ", constraintTerm_print (constraintExprData_termGetTerm (ex->data)));
1340 st = message ("%q (%q)",
1341 constraintExprUnaryOpKind_print (constraintExprData_unaryExprGetOp (ex->data)
1343 constraintExpr_unparse (constraintExprData_unaryExprGetExpr (ex->data) )
1347 st = message ("(%q) %q (%q)",
1348 constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ),
1349 constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data)
1351 constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) )
1356 st = message ("error");
1360 DPRINTF((message ("constraintExpr_unparse: '%s'",st) ) );
1364 constraintExpr constraintExpr_doSRefFixBaseParam (/*@returned@*/ constraintExpr expr, exprNodeList arglist)
1366 constraintTerm Term;
1367 constraintExprKind kind;
1368 constraintExpr expr1, expr2;
1369 constraintExprData data;
1370 llassert (expr != NULL);
1379 Term = constraintExprData_termGetTerm(data);
1380 Term = constraintTerm_copy(Term);
1382 Term = constraintTerm_doSRefFixBaseParam (Term, arglist);
1383 data = constraintExprData_termSetTerm(data, Term);
1386 expr1 = constraintExprData_unaryExprGetExpr (data);
1387 expr1 = constraintExpr_copy(expr1);
1389 expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist);
1390 data = constraintExprData_unaryExprSetExpr (data, expr1);
1393 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1394 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1396 expr1 = constraintExpr_copy(expr1);
1397 expr2 = constraintExpr_copy(expr2);
1399 expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist);
1400 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1401 expr2 = constraintExpr_doSRefFixBaseParam (expr2, arglist);
1402 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1412 /*@only@*/ constraintExpr constraintExpr_doSRefFixConstraintParam (/*@only@*/ constraintExpr expr, exprNodeList arglist) /*@modifies expr@*/
1414 constraintExprKind kind;
1415 constraintExpr expr1, expr2;
1416 constraintExprData data;
1417 llassert (expr != NULL);
1426 expr = doSRefFixConstraintParamTerm (expr, arglist);
1429 expr1 = constraintExprData_unaryExprGetExpr (data);
1430 expr1 = constraintExpr_copy(expr1);
1431 expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist);
1432 data = constraintExprData_unaryExprSetExpr (data, expr1);
1435 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1436 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1438 expr1 = constraintExpr_copy(expr1);
1439 expr2 = constraintExpr_copy(expr2);
1441 expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist);
1442 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1443 expr2 = constraintExpr_doSRefFixConstraintParam (expr2, arglist);
1444 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1454 /*@only@*/ constraintExpr constraintExpr_doFixResult (/*@only@*/ constraintExpr expr, /*@observer@*/ exprNode fcnCall)
1456 constraintExprKind kind;
1457 constraintExpr expr1, expr2;
1458 constraintExprData data;
1459 llassert (expr != NULL);
1468 expr = doFixResultTerm (expr, fcnCall);
1471 expr1 = constraintExprData_unaryExprGetExpr (data);
1472 expr1 = constraintExpr_copy(expr1);
1474 expr1 = constraintExpr_doFixResult (expr1, fcnCall);
1475 data = constraintExprData_unaryExprSetExpr (data, expr1);
1478 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1479 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1481 expr1 = constraintExpr_copy(expr1);
1482 expr2 = constraintExpr_copy(expr2);
1484 expr1 = constraintExpr_doFixResult (expr1, fcnCall);
1485 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1486 expr2 = constraintExpr_doFixResult (expr2, fcnCall);
1487 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1497 cstring constraintExpr_print (constraintExpr expr) /*@*/
1499 return constraintExpr_unparse (expr);
1502 bool constraintExpr_hasMaxSet (constraintExpr expr) /*@*/
1506 t = constraintExpr_unparse(expr);
1508 if (cstring_containsLit(t, "maxSet") != NULL )
1522 /*returns 1 0 -1 like strcmp
1528 int constraintExpr_compare (constraintExpr expr1, constraintExpr expr2)
1530 long value1, value2;
1532 if (constraintExpr_similar (expr1, expr2) )
1537 value1 = constraintExpr_getValue(expr1);
1538 value2 = constraintExpr_getValue(expr2);
1540 if (value1 > value2)
1543 if (value1 == value2)
1550 long constraintExpr_getValue (constraintExpr expr)
1552 llassert (expr->kind == term);
1553 return (constraintTerm_getValue (constraintExprData_termGetTerm (expr->data)));
1556 bool constraintExpr_canGetValue (constraintExpr expr)
1561 return constraintTerm_canGetValue (constraintExprData_termGetTerm (expr->data) );
1570 fileloc constraintExpr_getFileloc (constraintExpr expr)
1574 constraintExprKind kind;
1581 t = constraintExprData_termGetTerm (expr->data);
1582 return (constraintTerm_getFileloc (t) );
1586 e = constraintExprData_unaryExprGetExpr (expr->data);
1587 return (constraintExpr_getFileloc (e) );
1591 e = constraintExprData_binaryExprGetExpr1 (expr->data);
1592 return (constraintExpr_getFileloc (e) );
1597 return (fileloc_undefined);
1600 /*drl moved from constriantTerm.c 5/20/001*/
1601 static /*@only@*/ constraintExpr
1602 doFixResultTerm (/*@only@*/ constraintExpr e, /*@exposed@*/ exprNode fcnCall)
1606 /*maybe this should move to cosntraintExpr.c -drl7x 5/18/01*/
1607 /*@i22*/ constraintExprData data = e->data;
1609 /*@i22*/constraintExprKind kind = e->kind;
1613 llassert(kind == term);
1615 t = constraintExprData_termGetTerm (data);
1616 llassert (constraintTerm_isDefined(t) );
1619 switch (constraintTerm_getKind(t) )
1627 s = constraintTerm_getSRef(t);
1628 if (sRef_isResult (s))
1630 ret = constraintExpr_makeExprNode(fcnCall);
1631 constraintExpr_free(e);
1647 /*drl moved from constriantTerm.c 5/20/001*/
1648 /*@only@*/ static constraintExpr
1649 doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr e, /*@observer@*/ /*@temp@*/ exprNodeList arglist)
1653 constraintExprData data = e->data;
1655 constraintExprKind kind = e->kind;
1659 llassert(kind == term);
1661 t = constraintExprData_termGetTerm (data);
1662 llassert (constraintTerm_isDefined(t) );
1666 DPRINTF (("Fixing: %s", constraintExpr_print (e)));
1668 switch (constraintTerm_getKind(t))
1671 DPRINTF((message ("%q @ %q ", constraintTerm_print(t),
1672 fileloc_unparse (constraintTerm_getFileloc(t) ) ) ));
1675 DPRINTF((message (" %q ", constraintTerm_print (t)) ));
1679 /* evans 2001-07-24: constants should use the original term */
1680 if (!constraintTerm_canGetValue (t))
1682 DPRINTF ((message("Doing sRef_fixConstraintParam for %q ",
1683 constraintTerm_print (t) ) ));
1684 ret = sRef_fixConstraintParam (constraintTerm_getSRef(t), arglist);
1686 constraintExpr_free (e);
1688 DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ",
1689 constraintExpr_print (ret) ) ));
1691 } /*@=branchstate@*/
1703 /* bool constraintExpr_includesTerm (constraintExpr expr, constraintTerm term) */
1705 /* if (constraintTerm_hasTerm (expr->term, term) ) */
1708 /* if ( (expr->expr) != NULL) */
1710 /* return ( constraintExpr_includesTerm (expr->expr, term) ); */
1716 /*drl added 6/11/01 */
1717 bool constraintExpr_isBinaryExpr (/*@observer@*/ constraintExpr c)
1719 if (c->kind == binaryexpr)
1726 static void binaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f)
1728 constraintExpr expr1;
1729 constraintExprBinaryOpKind binaryOp;
1730 constraintExpr expr2;
1733 binaryOp = constraintExprData_binaryExprGetOp (data);
1735 fprintf(f, "%d\n", (int) binaryOp);
1737 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1738 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1742 constraintExpr_dump(expr1, f);
1745 constraintExpr_dump(expr2, f);
1749 static constraintExpr binaryExpr_undump (FILE *f)
1751 constraintExpr expr1;
1752 constraintExprBinaryOpKind binaryOp;
1753 constraintExpr expr2;
1762 str = mstring_create (MAX_DUMP_LINE_LENGTH);
1764 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1767 binaryOp = (constraintExprBinaryOpKind) reader_getInt(&str);
1769 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1771 reader_checkChar (&str, 'e');
1772 reader_checkChar (&str, '1');
1774 expr1 = constraintExpr_undump (f);
1776 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1778 reader_checkChar (&str, 'e');
1779 reader_checkChar (&str, '2');
1781 expr2 = constraintExpr_undump (f);
1783 ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2);
1784 ret->data = constraintExprData_binaryExprSetOp(ret->data, binaryOp);
1792 static void unaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f)
1795 constraintExpr expr;
1796 constraintExprUnaryOpKind unaryOp;
1798 unaryOp = constraintExprData_unaryExprGetOp (data);
1800 fprintf(f, "%d\n", (int) unaryOp);
1802 expr = constraintExprData_unaryExprGetExpr (data);
1804 constraintExpr_dump(expr, f);
1807 static constraintExpr unaryExpr_undump ( FILE *f)
1810 constraintExpr expr;
1811 constraintExprUnaryOpKind unaryOp;
1817 str = mstring_create (MAX_DUMP_LINE_LENGTH);
1819 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1821 unaryOp = (constraintExprUnaryOpKind) reader_getInt(&str);
1823 expr = constraintExpr_undump (f);
1825 ret = constraintExpr_makeUnaryOp (expr, unaryOp);
1832 void constraintExpr_dump (/*@observer@*/ constraintExpr expr, FILE *f)
1834 constraintExprKind kind;
1840 fprintf(f,"%d\n", (int) kind);
1845 t = constraintExprData_termGetTerm (expr->data);
1846 constraintTerm_dump (t, f);
1849 unaryExpr_dump (expr->data, f);
1852 binaryExpr_dump (expr->data, f);
1857 /*@only@*/ constraintExpr constraintExpr_undump (FILE *f)
1859 constraintExprKind kind;
1866 s = mstring_create (MAX_DUMP_LINE_LENGTH);
1870 s = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1872 kind = (constraintExprKind) reader_getInt(&s);
1879 t = constraintTerm_undump (f);
1880 ret = constraintExpr_makeTerm(t);
1883 ret = unaryExpr_undump (f);
1886 ret = binaryExpr_undump (f);