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 expr->data = constraintExprData_binaryExprSetExpr2(expr->data, temp);
163 expr->data = constraintExprData_binaryExprSetOp(expr->data, op);
169 /*@only@*/ constraintExpr constraintExpr_propagateConstants (/*@only@*/ constraintExpr expr,
170 /*@out@*/ bool * propagate,
171 /*@out@*/ int *literal)
173 constraintExpr expr1;
174 constraintExpr expr2;
175 bool propagate1, propagate2;
176 int literal1, literal2;
177 constraintExprBinaryOpKind op;
189 llassert (expr != NULL);
191 // we simplify unaryExpr else where
192 if (expr->kind != binaryexpr)
195 op = constraintExprData_binaryExprGetOp (expr->data);
197 DPRINTF( (message("constraintExpr_propagateConstants: binaryexpr: %s", constraintExpr_unparse(expr) ) ) );
199 expr = removeZero(expr);
201 expr1 = constraintExprData_binaryExprGetExpr1(expr->data);
202 expr2 = constraintExprData_binaryExprGetExpr2(expr->data);
204 expr1 = constraintExpr_copy(expr1);
205 expr2 = constraintExpr_copy(expr2);
207 expr1 = constraintExpr_propagateConstants (expr1, &propagate1, &literal1);
208 expr2 = constraintExpr_propagateConstants (expr2, &propagate2, &literal2);
210 expr1 = removeZero(expr1);
211 expr2 = removeZero(expr2);
214 *propagate = propagate1 || propagate2;
217 *literal = literal1 + literal2;
218 else if (op == MINUS)
219 *literal = literal1 - literal2;
223 if ( constraintExpr_isLit (expr1) && constraintExpr_isLit (expr2) )
226 t1 = constraintExpr_getValue (expr1);
227 t2 = constraintExpr_getValue (expr2);
228 llassert(*propagate == FALSE);
231 constraintExpr_free (expr);
232 constraintExpr_free (expr1);
233 constraintExpr_free (expr2);
236 return (constraintExpr_makeIntLiteral ( (t1+t2) ));
237 else if (op == MINUS)
238 return (constraintExpr_makeIntLiteral ( (t1-t2) ));
244 if (constraintExpr_isLit (expr1) )
248 *literal += constraintExpr_getValue (expr1);
252 constraintExpr_free(expr1);
253 constraintExpr_free(expr);
256 else if (op == MINUS)
261 /* this is an ugly kludge to deal with not
262 having a unary minus operation...*/
264 temp = constraintExpr_makeIntLiteral (0);
265 temp = constraintExpr_makeSubtractExpr (temp, expr2);
267 constraintExpr_free(expr1);
268 constraintExpr_free(expr);
274 BADBRANCH; /* evans 2001-07-18 */
278 if (constraintExpr_isLit (expr2) )
283 *literal += constraintExpr_getValue (expr2);
284 else if (op == MINUS)
285 *literal -= constraintExpr_getValue (expr2);
290 constraintExpr_free(expr2);
291 constraintExpr_free(expr);
295 DPRINTF( (message("constraintExpr_propagateConstants returning: %s", constraintExpr_unparse(expr) ) ) );
297 expr->data = constraintExprData_binaryExprSetExpr1 (expr->data, expr1);
298 expr->data = constraintExprData_binaryExprSetExpr2 (expr->data, expr2);
300 expr = removeZero(expr);
304 /*@only@*/ static constraintExpr constraintExpr_combineConstants (/*@only@*/ constraintExpr expr ) /*@modifies expr@*/
309 DPRINTF ( (message ("Before combine %s", constraintExpr_unparse(expr) ) ) );
310 expr = constraintExpr_propagateConstants (expr, &propagate, &literal);
319 ret = constraintExpr_makeBinaryOpConstraintExprIntLiteral (expr, literal);
323 DPRINTF ( (message ("After combine %s", constraintExpr_unparse(expr) ) ) );
328 static constraintExpr constraintExpr_alloc (void) /*@post:isnull result->data@*/
331 ret = dmalloc (sizeof (*ret) );
337 /*@only@*/ static constraintExprData copyExprData (/*@observer@*/ constraintExprData data, constraintExprKind kind)
339 constraintExprData ret;
340 llassert(constraintExprData_isDefined(data));
345 ret = constraintExprData_copyBinaryExpr(data);
348 ret = constraintExprData_copyUnaryExpr(data);
351 ret = constraintExprData_copyTerm(data);
359 constraintExpr constraintExpr_copy (constraintExpr expr)
362 ret = constraintExpr_alloc();
363 ret->kind = expr->kind;
365 ret->data = copyExprData (expr->data, expr->kind);
370 /*@only@*/ static constraintExpr oldconstraintExpr_makeTermExprNode ( /*@dependent@*/ exprNode e)
374 ret = constraintExpr_alloc();
376 ret->data = dmalloc (sizeof *(ret->data) );
377 t = constraintTerm_makeExprNode (e);
378 ret->data = constraintExprData_termSetTerm (ret->data, t);
382 constraintExpr constraintExpr_makeExprNode (exprNode e)
385 constraintExpr ret, ce1, ce2;
391 llassert (e != NULL);
398 t = exprData_getSingle (data);
399 s = exprNode_getSref (t);
400 if (sRef_isFixedArray(s) )
404 size = (int) sRef_getArraySize(s);
405 ret = constraintExpr_makeIntLiteral (size);
409 DPRINTF ((message ("could not determine the size of %s", exprNode_unparse (e) ) ) );
410 ret = oldconstraintExpr_makeTermExprNode (e);
415 DPRINTF ((message ("Examining operation %s", exprNode_unparse (e) ) ) );
416 t1 = exprData_getOpA (data);
417 t2 = exprData_getOpB (data);
418 tok = exprData_getOpTok (data);
420 if (lltok_isPlus_Op (tok) || lltok_isMinus_Op (tok) )
422 ce1 = constraintExpr_makeExprNode (t1);
423 ce2 = constraintExpr_makeExprNode (t2);
424 ret = constraintExpr_parseMakeBinaryOp (ce1, tok, ce2);
429 We handle expressions containing sizeof with the rule
430 (sizeof type ) * Expr = Expr
432 This is the total wronge way to do this but...
433 it may be better than nothing
435 else if (lltok_isMult(tok) )
437 if ((t1->kind == XPR_SIZEOF) || (t1->kind == XPR_SIZEOFT) )
439 ret = constraintExpr_makeExprNode(t2);
441 else if ((t2->kind == XPR_SIZEOF) || (t2->kind == XPR_SIZEOFT) )
443 ret = constraintExpr_makeExprNode(t1);
447 ret = oldconstraintExpr_makeTermExprNode (e);
451 ret = oldconstraintExpr_makeTermExprNode (e);
455 t = exprData_getUopNode (data);
456 ret = constraintExpr_makeExprNode (t);
460 t = exprData_getUopNode (data);
461 tok = exprData_getUopTok (data);
462 if (lltok_isInc_Op (tok) )
465 temp = constraintExpr_makeExprNode(t);
466 ret = constraintExpr_makeIncConstraintExpr(temp);
468 else if (lltok_isDec_Op (tok) )
471 temp = constraintExpr_makeExprNode(t);
472 ret = constraintExpr_makeDecConstraintExpr(temp);
475 ret = oldconstraintExpr_makeTermExprNode (e);
479 t = exprData_getUopNode (data);
480 ret = constraintExpr_makeExprNode (t);
483 t = exprData_getCastNode (data);
484 ret = constraintExpr_makeExprNode (t);
487 t = exprData_getPairA(data);
488 ret = constraintExpr_makeExprNode(t);
489 /*@i3434*/ /*I'm not sure if this is right. I'm adding a break to quite LCLint*/
492 ret = oldconstraintExpr_makeTermExprNode (e);
498 /*@only@*/ constraintExpr constraintExpr_makeTermExprNode (/*@exposed@*/ exprNode e)
500 return oldconstraintExpr_makeTermExprNode(e); //constraintExpr_makeExprNode (e);
503 static constraintExpr constraintExpr_makeTerm (/*@only@*/ constraintTerm t)
507 ret = constraintExpr_alloc();
509 ret->data = dmalloc (sizeof *(ret->data) );
510 ret->data->term = NULL;
511 ret->data = constraintExprData_termSetTerm (ret->data, t);
516 constraintExpr constraintExpr_makeTermsRef (/*@temp@*/ sRef s)
520 ret = constraintExpr_alloc();
522 ret->data = dmalloc (sizeof *(ret->data) );
523 t = constraintTerm_makesRef (s);
524 ret->data = constraintExprData_termSetTerm (ret->data, t);
528 /*@special@*/ static constraintExpr makeUnaryOpGeneric (void) /*@allocates result->data@*/ /*@defines result->kind@*/
531 ret = constraintExpr_alloc();
532 ret->kind = unaryExpr;
533 ret->data = dmalloc ( sizeof *(ret->data) );
534 ret->data->unaryOp.expr = constraintExpr_undefined;
538 /*@only@*/ static constraintExpr constraintExpr_makeUnaryOpConstraintExpr (/*@only@*/ constraintExpr cexpr)
541 ret = makeUnaryOpGeneric();
545 ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr);
546 ret->data = constraintExprData_unaryExprSetOp (ret->data, UNARYOP_UNDEFINED);
555 /*@only@*/ static constraintExpr constraintExpr_makeUnaryOp (/*@only@*/ constraintExpr cexpr, constraintExprUnaryOpKind Op )
558 ret = makeUnaryOpGeneric();
560 ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr);
561 ret->data = constraintExprData_unaryExprSetOp (ret->data, Op);
567 static constraintExpr constraintExpr_makeMaxSetConstraintExpr (/*@only@*/ constraintExpr c)
570 ret = constraintExpr_makeUnaryOp (c, MAXSET);
575 static constraintExpr constraintExpr_makeUnaryOpExprNode (/*@exposed@*/ exprNode expr)
579 sub = constraintExpr_makeExprNode (expr);
580 ret = constraintExpr_makeUnaryOpConstraintExpr(sub);
588 static constraintExpr constraintExpr_makeSRefUnaryOp (/*@temp@*/ /*@observer@*/ sRef s, constraintExprUnaryOpKind op)
593 t = constraintExpr_makeTermsRef (s);
594 ret = constraintExpr_makeUnaryOpConstraintExpr (t);
595 ret->data = constraintExprData_unaryExprSetOp (ret->data, op);
601 constraintExpr constraintExpr_makeSRefMaxRead( sRef s)
603 return (constraintExpr_makeSRefUnaryOp (s, MAXREAD) );
607 constraintExpr constraintExpr_makeSRefMaxset ( sRef s)
609 return (constraintExpr_makeSRefUnaryOp (s, MAXSET) );
613 constraintExpr constraintExpr_parseMakeUnaryOp (lltok op, constraintExpr cexpr)
616 ret = constraintExpr_makeUnaryOpConstraintExpr ( cexpr);
621 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXSET);
624 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD);
627 llfatalbug(message("Unhandled Operation in Constraint") );
633 constraintExpr constraintExpr_makeMaxSetExpr (/*@exposed@*/ exprNode expr)
636 ret = constraintExpr_makeExprNode (expr);
638 ret = constraintExpr_makeMaxSetConstraintExpr (ret);
640 llassert (ret != NULL);
645 constraintExpr constraintExpr_makeMaxReadExpr (exprNode expr)
648 ret = constraintExpr_makeUnaryOpExprNode(expr);
649 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD);
655 /*@unused@*/ static constraintExpr constraintExpr_makeMinSetExpr (/*@exposed@*/ exprNode expr)
658 ret = constraintExpr_makeUnaryOpExprNode(expr);
659 ret->data = constraintExprData_unaryExprSetOp (ret->data, MINSET);
664 /*@unused@*/ static constraintExpr constraintExpr_makeMinReadExpr (/*@exposed@*/ exprNode expr)
667 ret = constraintExpr_makeUnaryOpExprNode(expr);
668 ret->data = constraintExprData_unaryExprSetOp (ret->data, MINREAD);
674 constraintExpr constraintExpr_makeValueExpr (/*@exposed@*/ exprNode expr)
677 ret = constraintExpr_makeExprNode (expr);
682 constraintExpr constraintExpr_makeIntLiteral (long i)
686 ret = constraintExpr_alloc();
688 ret->data = dmalloc (sizeof *(ret->data) );
689 t = constraintTerm_makeIntLiteral (i);
690 ret->data = constraintExprData_termSetTerm (ret->data, t);
695 constraintExpr constraintExpr_makeValueInt (int i)
697 return constraintExpr_makeIntLiteral (i);
702 /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void)
703 /*@allocates result->data @*/ /*@sets result->kind @*/
706 ret = constraintExpr_alloc();
707 ret->kind = binaryexpr;
708 ret->data = dmalloc ( sizeof *(ret->data) );
710 ret->data->binaryOp.expr1 = constraintExpr_undefined;
711 ret->data->binaryOp.expr2 = constraintExpr_undefined;
713 // ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED);
718 static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExpr (/*@only@*/constraintExpr expr1, /*@only@*/ constraintExpr expr2)
723 ret = constraintExpr_makeBinaryOp();
724 ret->data = constraintExprData_binaryExprSetExpr1 (ret->data, expr1);
725 ret->data = constraintExprData_binaryExprSetExpr2 (ret->data, expr2);
726 ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED);
731 constraintExpr constraintExpr_parseMakeBinaryOp (/*@only@*/ constraintExpr expr1, lltok op,/*@only@*/ constraintExpr expr2)
734 ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2);
736 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
737 else if (op.tok == TMINUS)
738 ret->data = constraintExprData_binaryExprSetOp(ret->data, MINUS);
748 /*@unused@*/ static constraintExpr constraintExpr_makeBinaryOpExprNode (/*@exposed@*/ exprNode expr1, /*@exposed@*/ exprNode expr2)
751 constraintExpr sub1, sub2;
752 sub1 = constraintExpr_makeTermExprNode (expr1);
753 sub2 = constraintExpr_makeTermExprNode (expr2);
754 ret = constraintExpr_makeBinaryOpConstraintExpr(sub1, sub2);
760 constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/ constraintExpr expr, int literal)
763 constraintExpr constExpr;
765 constExpr = constraintExpr_makeIntLiteral (literal);
766 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, constExpr);
767 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
772 constraintExpr constraintExpr_makeDecConstraintExpr (/*@only@*/constraintExpr expr)
777 inc = constraintExpr_makeIntLiteral (1);
778 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc);
779 ret->data = constraintExprData_binaryExprSetOp(ret->data, MINUS);
784 /*@only@*/ constraintExpr constraintExpr_makeSubtractExpr (/*@only@*/ constraintExpr expr, /*@only@*/ constraintExpr addent)
788 DPRINTF ( (message ("Making subtract expression") ) );
790 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent);
791 ret->data = constraintExprData_binaryExprSetOp (ret->data, MINUS);
796 constraintExpr constraintExpr_makeAddExpr (/*@only@*/
797 constraintExpr expr, /*@only@*/
798 constraintExpr addent)
802 DPRINTF ( (message ("Doing addTerm simplification") ) );
804 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent);
805 ret->data = constraintExprData_binaryExprSetOp (ret->data, PLUS);
811 constraintExpr constraintExpr_makeIncConstraintExpr (/*@only@*/ constraintExpr expr)
816 inc = constraintExpr_makeIntLiteral (1);
817 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc);
818 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
823 static cstring constraintExprUnaryOpKind_print (constraintExprUnaryOpKind op)
828 return message("maxSet");
830 return message("minSet");
832 return message("maxRead");
834 return message("minRead");
837 return message ("<(Unary OP OTHER>");
843 static cstring constraintExprBinaryOpKind_print (constraintExprBinaryOpKind op)
855 return message ("<binary OP Unknown>");
859 bool constraintExpr_similar (constraintExpr expr1, constraintExpr expr2)
861 constraintExprKind kind;
863 llassert (expr1 != NULL);
864 llassert (expr2 != NULL);
865 if (expr1->kind != expr2->kind)
873 return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data),
874 constraintExprData_termGetTerm(expr2->data) );
875 /*@notreached@*/ break;
878 if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) )
881 return (constraintExpr_similar (
882 constraintExprData_unaryExprGetExpr (expr1->data),
883 constraintExprData_unaryExprGetExpr (expr2->data)
887 if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) )
890 if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr1 (expr1->data),
891 constraintExprData_binaryExprGetExpr1 (expr2->data)) )
894 if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr2 (expr1->data),
895 constraintExprData_binaryExprGetExpr2 (expr2->data)) )
910 bool constraintExpr_same (constraintExpr expr1, constraintExpr expr2)
912 constraintExprKind kind;
914 llassert (expr1 != NULL);
915 llassert (expr2 != NULL);
916 if (expr1->kind != expr2->kind)
924 return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data),
925 constraintExprData_termGetTerm(expr2->data) );
926 /*@notreached@*/ break;
929 if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) )
932 return (constraintExpr_same (
933 constraintExprData_unaryExprGetExpr (expr1->data),
934 constraintExprData_unaryExprGetExpr (expr2->data)
939 if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) )
942 if (! constraintExpr_same (constraintExprData_binaryExprGetExpr1 (expr1->data),
943 constraintExprData_binaryExprGetExpr1 (expr2->data)) )
946 if (! constraintExpr_same (constraintExprData_binaryExprGetExpr2 (expr1->data),
947 constraintExprData_binaryExprGetExpr2 (expr2->data)) )
951 /*@notreached@*/ break;
962 bool constraintExpr_search (/*@observer@*/ constraintExpr c, /*@observer@*/ constraintExpr old)
965 constraintExprKind kind;
968 if ( constraintExpr_similar (c, old) )
970 DPRINTF((message ("Found %q",
971 constraintExpr_unparse(old)
983 temp = constraintExprData_unaryExprGetExpr (c->data);
984 ret = ret || constraintExpr_search (temp, old);
988 temp = constraintExprData_binaryExprGetExpr1 (c->data);
989 ret = ret || constraintExpr_search(temp, old);
991 temp = constraintExprData_binaryExprGetExpr2 (c->data);
992 ret = ret || constraintExpr_search(temp, old);
1002 /*@only@*/ constraintExpr constraintExpr_searchandreplace (/*@only@*/ /*@unique@*/ constraintExpr c, /*@temp@*/ constraintExpr old, /*@temp@*/ constraintExpr newExpr )
1004 constraintExprKind kind;
1005 constraintExpr temp;
1007 if ( constraintExpr_similar (c, old) )
1010 DPRINTF((message ("Replacing %s with %s",
1011 constraintExpr_unparse(old), constraintExpr_unparse(newExpr)
1013 constraintExpr_free(c);
1014 return constraintExpr_copy (newExpr);
1024 temp = constraintExprData_unaryExprGetExpr (c->data);
1025 temp = constraintExpr_copy(temp);
1026 temp = constraintExpr_searchandreplace (temp, old, newExpr);
1027 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1031 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1032 temp = constraintExpr_copy(temp);
1033 temp = constraintExpr_searchandreplace (temp, old, newExpr);
1034 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1036 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1037 temp = constraintExpr_copy(temp);
1038 temp = constraintExpr_searchandreplace (temp, old, newExpr);
1039 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1048 static constraintExpr constraintExpr_simplifyChildren (/*@returned@*/ constraintExpr c)
1050 constraintExprKind kind;
1051 constraintExpr temp;
1060 temp = constraintExprData_unaryExprGetExpr (c->data);
1061 temp = constraintExpr_copy(temp);
1062 temp = constraintExpr_simplify (temp);
1063 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1066 DPRINTF((message("constraintExpr_simplfiyChildren: simplify binary expression: %s",constraintExpr_unparse(c) ) ) );
1067 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1068 temp = constraintExpr_copy(temp);
1069 temp = constraintExpr_simplify (temp);
1071 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1073 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1074 temp = constraintExpr_copy(temp);
1075 temp = constraintExpr_simplify (temp);
1077 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1087 constraintExpr constraintExpr_setFileloc (/*@returned@*/ constraintExpr c, fileloc loc) /*@modifies c @*/
1090 constraintExpr temp;
1092 llassert(c != NULL);
1097 t = constraintExprData_termGetTerm (c->data);
1098 t = constraintTerm_copy(t);
1099 t = constraintTerm_setFileloc (t, loc);
1100 c->data = constraintExprData_termSetTerm (c->data, t);
1104 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1105 temp = constraintExpr_copy(temp);
1106 temp = constraintExpr_setFileloc (temp, loc);
1107 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1109 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1110 temp = constraintExpr_copy(temp);
1111 temp = constraintExpr_setFileloc (temp, loc);
1112 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1115 temp = constraintExprData_unaryExprGetExpr (c->data);
1116 temp = constraintExpr_copy(temp);
1117 temp = constraintExpr_setFileloc (temp, loc);
1118 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1124 static /*@only@*/ constraintExpr constraintExpr_simplifybinaryExpr (/*@only@*/constraintExpr c)
1126 constraintExpr e1, e2;
1127 constraintExprBinaryOpKind op;
1129 e1 = constraintExprData_binaryExprGetExpr1 (c->data);
1130 e2 = constraintExprData_binaryExprGetExpr2 (c->data);
1132 if (constraintExpr_canGetValue (e1) && constraintExpr_canGetValue(e2) )
1136 i = constraintExpr_getValue(e1) + constraintExpr_getValue (e2);
1137 constraintExpr_free(c);
1138 c = constraintExpr_makeIntLiteral (i);
1142 op = constraintExprData_binaryExprGetOp (c->data);
1144 if (constraintExpr_similar(e1, e2) )
1146 constraintExpr_free(c);
1147 c = constraintExpr_makeIntLiteral (0);
1155 this thing takes the lexpr and expr of a constraint and modifies lexpr
1156 and returns a (possiblly new) value for expr
1158 /* 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 */
1160 /* the approach is a little Kludgy but seems to work. I should probably use something cleaner at some point ... */
1163 /*@only@*/ constraintExpr constraintExpr_solveBinaryExpr (constraintExpr lexpr, /*@only@*/ constraintExpr expr)
1165 constraintExpr expr1, expr2;
1166 constraintExprBinaryOpKind op;
1168 if (lexpr->kind != binaryexpr)
1171 expr2 = constraintExprData_binaryExprGetExpr2 (lexpr->data);
1172 expr1 = constraintExprData_binaryExprGetExpr1 (lexpr->data);
1174 op = constraintExprData_binaryExprGetOp (lexpr->data);
1176 expr1 = constraintExpr_copy(expr1);
1177 expr2 = constraintExpr_copy(expr2);
1179 //drl possible problem : warning make sure this works
1181 lexpr->kind = expr1->kind;
1184 lexpr->data = copyExprData (expr1->data, expr1->kind);
1185 constraintExpr_free(expr1);
1188 expr = constraintExpr_makeSubtractExpr (expr, expr2);
1189 else if (op == MINUS)
1190 expr = constraintExpr_makeAddExpr (expr, expr2);
1198 #warning this needs to be checked
1199 expr = constraintExpr_solveBinaryExpr (expr1, expr);
1201 expr = constraintExpr_solveBinaryExpr (expr2, expr);
1206 static /*@only@*/ constraintExpr constraintExpr_simplifyunaryExpr (/*@only@*/ constraintExpr c)
1210 llassert (c->kind == unaryExpr);
1212 DPRINTF ((message ("Doing constraintExpr_simplifyunaryExpr:%s", constraintExpr_unparse (c) ) ) );
1214 if ( (constraintExprData_unaryExprGetOp (c->data) != MAXSET) &&
1215 (constraintExprData_unaryExprGetOp (c->data) != MAXREAD) )
1219 // pattern mxr ( var + const) = mxr(var) - const
1221 exp = constraintExprData_unaryExprGetExpr (c->data);
1222 exp = constraintExpr_copy(exp);
1224 if (exp->kind == term)
1226 constraintTerm cterm;
1228 cterm = constraintExprData_termGetTerm (exp->data);
1230 if (constraintTerm_isStringLiteral(cterm) )
1233 val = constraintTerm_getStringLiteral (cterm);
1234 if (constraintExprData_unaryExprGetOp (c->data) == MAXSET)
1236 constraintExpr temp;
1238 temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) );
1240 constraintExpr_free(c);
1241 constraintExpr_free(exp);
1246 if (constraintExprData_unaryExprGetOp (c->data) == MAXREAD)
1248 constraintExpr temp;
1250 temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) );
1252 constraintExpr_free(c);
1253 constraintExpr_free(exp);
1260 // slight Kludge to hanlde var [] = { , , };
1261 // type syntax I don't think this is sounds but it should be good
1262 // enough. The C stanrad is very confusing about initialization
1265 if (constraintTerm_isInitBlock(cterm) )
1267 constraintExpr temp;
1270 len = constraintTerm_getInitBlockLength(cterm);
1272 temp = constraintExpr_makeIntLiteral (len );
1274 constraintExpr_free(c);
1275 DPRINTF(( message("Changed too %q", constraintExpr_print(temp)
1277 constraintExpr_free(exp);
1281 constraintExpr_free(exp);
1285 if (exp->kind != binaryexpr)
1287 constraintExpr_free(exp);
1291 if (constraintExprData_binaryExprGetOp (exp->data) == PLUS )
1294 // if (constraintExpr_canGetValue (constraintExprData_binaryExprGetExpr2 (exp->data) ) )
1297 constraintExpr temp, temp2;
1299 DPRINTF ( (message ("Doing fancy simplification") ) );
1301 temp = constraintExprData_binaryExprGetExpr2 (exp->data);
1303 temp2 = constraintExprData_binaryExprGetExpr1 (exp->data);
1305 temp2 = constraintExpr_copy(temp2);
1306 c->data = constraintExprData_unaryExprSetExpr (c->data, temp2);
1309 temp = constraintExpr_copy (temp);
1311 c = constraintExpr_makeSubtractExpr (c, temp);
1313 DPRINTF ( (message ("Done fancy simplification:%s", constraintExpr_unparse (c) ) ) );
1317 DPRINTF ( (message ("constraintExpr_simplifyUnaryExpr: Done simplification:%s", constraintExpr_unparse (c) ) ) );
1319 constraintExpr_free(exp);
1324 /*@only@*/ constraintExpr constraintExpr_simplify (/*@only@*/ constraintExpr c)
1326 constraintExprKind kind;
1330 DPRINTF ( (message ("Doing constraintExpr_simplify:%s", constraintExpr_unparse (c) ) ) );
1335 /*I think this is an LCLint bug */
1337 ret = constraintExpr_copy(c);
1339 constraintExpr_free(c);
1341 ret = constraintExpr_simplifyChildren (ret);
1343 ret = constraintExpr_combineConstants (ret);
1345 ret = constraintExpr_simplifyChildren (ret);
1353 t = constraintExprData_termGetTerm (ret->data);
1354 t = constraintTerm_copy(t);
1355 t = constraintTerm_simplify (t);
1356 ret->data = constraintExprData_termSetTerm (ret->data, t);
1359 ret = constraintExpr_simplifyunaryExpr (ret);
1362 ret = constraintExpr_simplifybinaryExpr (ret);
1368 DPRINTF ( (message ("constraintExpr_simplify returning :%s", constraintExpr_unparse (ret) ) ) );
1374 cstring constraintExpr_unparse (/*@temp@*/ /*@observer@*/ constraintExpr ex) /*@*/
1377 constraintExprKind kind;
1379 llassert (ex != NULL);
1387 if (context_getFlag (FLG_PARENCONSTRAINT) )
1389 st = message ("(%q) ", constraintTerm_print (constraintExprData_termGetTerm (ex->data)));
1393 st = message ("%q", constraintTerm_print (constraintExprData_termGetTerm (ex->data)));
1397 st = message ("%q(%q)",
1398 constraintExprUnaryOpKind_print (constraintExprData_unaryExprGetOp (ex->data) ),
1399 constraintExpr_unparse (constraintExprData_unaryExprGetExpr (ex->data) )
1403 if (context_getFlag (FLG_PARENCONSTRAINT) )
1405 st = message ("(%q) %q (%q)",
1406 constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ),
1407 constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data)
1409 constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) )
1414 st = message ("%q %q %q",
1415 constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ),
1416 constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data)
1418 constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) )
1425 st = message ("error");
1429 DPRINTF((message ("constraintExpr_unparse: '%s'",st) ) );
1433 constraintExpr constraintExpr_doSRefFixBaseParam (/*@returned@*/ constraintExpr expr, exprNodeList arglist)
1435 constraintTerm Term;
1436 constraintExprKind kind;
1437 constraintExpr expr1, expr2;
1438 constraintExprData data;
1439 llassert (expr != NULL);
1448 Term = constraintExprData_termGetTerm(data);
1449 Term = constraintTerm_copy(Term);
1451 Term = constraintTerm_doSRefFixBaseParam (Term, arglist);
1452 data = constraintExprData_termSetTerm(data, Term);
1455 expr1 = constraintExprData_unaryExprGetExpr (data);
1456 expr1 = constraintExpr_copy(expr1);
1458 expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist);
1459 data = constraintExprData_unaryExprSetExpr (data, expr1);
1462 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1463 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1465 expr1 = constraintExpr_copy(expr1);
1466 expr2 = constraintExpr_copy(expr2);
1468 expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist);
1469 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1470 expr2 = constraintExpr_doSRefFixBaseParam (expr2, arglist);
1471 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1481 /*@only@*/ constraintExpr constraintExpr_doSRefFixConstraintParam (/*@only@*/ constraintExpr expr, exprNodeList arglist) /*@modifies expr@*/
1483 constraintExprKind kind;
1484 constraintExpr expr1, expr2;
1485 constraintExprData data;
1486 llassert (expr != NULL);
1495 expr = doSRefFixConstraintParamTerm (expr, arglist);
1498 expr1 = constraintExprData_unaryExprGetExpr (data);
1499 expr1 = constraintExpr_copy(expr1);
1500 expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist);
1501 data = constraintExprData_unaryExprSetExpr (data, expr1);
1504 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1505 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1507 expr1 = constraintExpr_copy(expr1);
1508 expr2 = constraintExpr_copy(expr2);
1510 expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist);
1511 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1512 expr2 = constraintExpr_doSRefFixConstraintParam (expr2, arglist);
1513 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1523 /*@only@*/ constraintExpr constraintExpr_doFixResult (/*@only@*/ constraintExpr expr, /*@observer@*/ exprNode fcnCall)
1525 constraintExprKind kind;
1526 constraintExpr expr1, expr2;
1527 constraintExprData data;
1528 llassert (expr != NULL);
1537 expr = doFixResultTerm (expr, fcnCall);
1540 expr1 = constraintExprData_unaryExprGetExpr (data);
1541 expr1 = constraintExpr_copy(expr1);
1543 expr1 = constraintExpr_doFixResult (expr1, fcnCall);
1544 data = constraintExprData_unaryExprSetExpr (data, expr1);
1547 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1548 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1550 expr1 = constraintExpr_copy(expr1);
1551 expr2 = constraintExpr_copy(expr2);
1553 expr1 = constraintExpr_doFixResult (expr1, fcnCall);
1554 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1555 expr2 = constraintExpr_doFixResult (expr2, fcnCall);
1556 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1566 cstring constraintExpr_print (constraintExpr expr) /*@*/
1568 return constraintExpr_unparse (expr);
1571 bool constraintExpr_hasMaxSet (constraintExpr expr) /*@*/
1575 t = constraintExpr_unparse(expr);
1577 if (cstring_containsLit(t, "maxSet") != NULL )
1591 /*returns 1 0 -1 like strcmp
1597 int constraintExpr_compare (constraintExpr expr1, constraintExpr expr2)
1599 long value1, value2;
1601 if (constraintExpr_similar (expr1, expr2) )
1606 value1 = constraintExpr_getValue(expr1);
1607 value2 = constraintExpr_getValue(expr2);
1609 if (value1 > value2)
1612 if (value1 == value2)
1619 long constraintExpr_getValue (constraintExpr expr)
1621 llassert (expr->kind == term);
1622 return (constraintTerm_getValue (constraintExprData_termGetTerm (expr->data)));
1625 bool constraintExpr_canGetValue (constraintExpr expr)
1630 return constraintTerm_canGetValue (constraintExprData_termGetTerm (expr->data) );
1639 fileloc constraintExpr_getFileloc (constraintExpr expr)
1643 constraintExprKind kind;
1650 t = constraintExprData_termGetTerm (expr->data);
1651 return (constraintTerm_getFileloc (t) );
1655 e = constraintExprData_unaryExprGetExpr (expr->data);
1656 return (constraintExpr_getFileloc (e) );
1660 e = constraintExprData_binaryExprGetExpr1 (expr->data);
1661 return (constraintExpr_getFileloc (e) );
1666 return (fileloc_undefined);
1669 /*drl moved from constriantTerm.c 5/20/001*/
1670 static /*@only@*/ constraintExpr
1671 doFixResultTerm (/*@only@*/ constraintExpr e, /*@exposed@*/ exprNode fcnCall)
1675 /*maybe this should move to cosntraintExpr.c -drl7x 5/18/01*/
1678 constraintExprData data = e->data;
1679 constraintExprKind kind = e->kind;
1683 llassert(kind == term);
1685 t = constraintExprData_termGetTerm (data);
1686 llassert (constraintTerm_isDefined(t) );
1689 switch (constraintTerm_getKind(t) )
1697 s = constraintTerm_getSRef(t);
1698 if (sRef_isResult (s))
1700 ret = constraintExpr_makeExprNode(fcnCall);
1701 constraintExpr_free(e);
1717 /*drl moved from constriantTerm.c 5/20/001*/
1718 /*@only@*/ static constraintExpr
1719 doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr e, /*@observer@*/ /*@temp@*/ exprNodeList arglist)
1723 constraintExprData data = e->data;
1725 constraintExprKind kind = e->kind;
1729 llassert(kind == term);
1731 t = constraintExprData_termGetTerm (data);
1732 llassert (constraintTerm_isDefined(t) );
1736 DPRINTF (("Fixing: %s", constraintExpr_print (e)));
1738 switch (constraintTerm_getKind(t))
1741 DPRINTF((message ("%q @ %q ", constraintTerm_print(t),
1742 fileloc_unparse (constraintTerm_getFileloc(t) ) ) ));
1745 DPRINTF((message (" %q ", constraintTerm_print (t)) ));
1749 /* evans 2001-07-24: constants should use the original term */
1750 if (!constraintTerm_canGetValue (t))
1752 DPRINTF ((message("Doing sRef_fixConstraintParam for %q ",
1753 constraintTerm_print (t) ) ));
1754 ret = sRef_fixConstraintParam (constraintTerm_getSRef(t), arglist);
1756 constraintExpr_free (e);
1758 DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ",
1759 constraintExpr_print (ret) ) ));
1761 } /*@=branchstate@*/
1773 /* bool constraintExpr_includesTerm (constraintExpr expr, constraintTerm term) */
1775 /* if (constraintTerm_hasTerm (expr->term, term) ) */
1778 /* if ( (expr->expr) != NULL) */
1780 /* return ( constraintExpr_includesTerm (expr->expr, term) ); */
1786 /*drl added 6/11/01 */
1787 bool constraintExpr_isBinaryExpr (/*@observer@*/ constraintExpr c)
1789 if (c->kind == binaryexpr)
1796 /*drl added 8/08/001 */
1797 bool constraintExpr_isTerm (/*@observer@*/ constraintExpr c) /*@*/
1799 if (c->kind == term)
1806 /*@observer@*/ /*@temp@*/ constraintTerm constraintExpr_getTerm ( /*@temp@*/ /*@observer@*/ constraintExpr c) /*@*/
1808 constraintTerm term;
1810 llassert(constraintExpr_isTerm(c) );
1812 term = constraintExprData_termGetTerm(c->data);
1817 static void binaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f)
1819 constraintExpr expr1;
1820 constraintExprBinaryOpKind binaryOp;
1821 constraintExpr expr2;
1824 binaryOp = constraintExprData_binaryExprGetOp (data);
1826 fprintf(f, "%d\n", (int) binaryOp);
1828 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1829 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1833 constraintExpr_dump(expr1, f);
1836 constraintExpr_dump(expr2, f);
1840 static constraintExpr binaryExpr_undump (FILE *f)
1842 constraintExpr expr1;
1843 constraintExprBinaryOpKind binaryOp;
1844 constraintExpr expr2;
1853 str = mstring_create (MAX_DUMP_LINE_LENGTH);
1855 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1858 binaryOp = (constraintExprBinaryOpKind) reader_getInt(&str);
1860 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1862 reader_checkChar (&str, 'e');
1863 reader_checkChar (&str, '1');
1865 expr1 = constraintExpr_undump (f);
1867 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1869 reader_checkChar (&str, 'e');
1870 reader_checkChar (&str, '2');
1872 expr2 = constraintExpr_undump (f);
1874 ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2);
1875 ret->data = constraintExprData_binaryExprSetOp(ret->data, binaryOp);
1883 static void unaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f)
1886 constraintExpr expr;
1887 constraintExprUnaryOpKind unaryOp;
1889 unaryOp = constraintExprData_unaryExprGetOp (data);
1891 fprintf(f, "%d\n", (int) unaryOp);
1893 expr = constraintExprData_unaryExprGetExpr (data);
1895 constraintExpr_dump(expr, f);
1898 static constraintExpr unaryExpr_undump ( FILE *f)
1901 constraintExpr expr;
1902 constraintExprUnaryOpKind unaryOp;
1908 str = mstring_create (MAX_DUMP_LINE_LENGTH);
1910 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1912 unaryOp = (constraintExprUnaryOpKind) reader_getInt(&str);
1914 expr = constraintExpr_undump (f);
1916 ret = constraintExpr_makeUnaryOp (expr, unaryOp);
1923 void constraintExpr_dump (/*@observer@*/ constraintExpr expr, FILE *f)
1925 constraintExprKind kind;
1931 fprintf(f,"%d\n", (int) kind);
1936 t = constraintExprData_termGetTerm (expr->data);
1937 constraintTerm_dump (t, f);
1940 unaryExpr_dump (expr->data, f);
1943 binaryExpr_dump (expr->data, f);
1948 /*@only@*/ constraintExpr constraintExpr_undump (FILE *f)
1950 constraintExprKind kind;
1957 s = mstring_create (MAX_DUMP_LINE_LENGTH);
1961 s = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1963 kind = (constraintExprKind) reader_getInt(&s);
1970 t = constraintTerm_undump (f);
1971 ret = constraintExpr_makeTerm(t);
1974 ret = unaryExpr_undump (f);
1977 ret = binaryExpr_undump (f);
1985 int constraintExpr_getDepth (constraintExpr ex)
1989 constraintExprKind kind;
1991 llassert (ex != NULL);
2001 ret = constraintExpr_getDepth (constraintExprData_unaryExprGetExpr (ex->data) );
2007 ret = constraintExpr_getDepth (constraintExprData_binaryExprGetExpr1 (ex->data) );
2011 ret += constraintExpr_getDepth (constraintExprData_binaryExprGetExpr2 (ex->data) );