5 /* #define DEBUGPRINT 1 */
7 # include "lclintMacros.nf"
10 # include "cgrammar_tokens.h"
12 # include "exprChecks.h"
13 # include "exprNodeSList.h"
19 /*@access exprNode constraintExpr@*/
22 static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/constraintExpr p_expr, int p_literal);
25 /*@only@*/ static constraintExpr
26 doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr p_e, /*@temp@*/ /*@observer@*/ exprNodeList p_arglist) /*@modifies p_e@*/;
28 static /*@only@*/ constraintExpr
29 doFixResultTerm (/*@only@*/ constraintExpr p_e, /*@exposed@*/ exprNode p_fcnCall)
33 /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void)
34 /* @allocates result->data @ @sets result->kind @ */ ;
36 void constraintExpr_free (/*@only@*/ constraintExpr expr)
38 if (constraintExpr_isDefined(expr) )
43 constraintExprData_freeUnaryExpr(expr->data);
46 constraintExprData_freeBinaryExpr(expr->data);
49 constraintExprData_freeTerm(expr->data);
60 llcontbug(message("attempted to free null pointer in constraintExpr_free"));
64 bool constraintExpr_isLit (constraintExpr expr)
66 llassert (expr != NULL);
68 if (expr->kind == term)
70 constraintTerm term = constraintExprData_termGetTerm (expr->data);
71 if (constraintTerm_isIntLiteral (term) )
80 static bool isZeroBinaryOp (constraintExpr expr)
84 llassert (expr != NULL); /* evans 2001-07-18 */
86 if (!constraintExpr_isBinaryExpr (expr) )
92 e2 = constraintExprData_binaryExprGetExpr2(expr->data);
94 llassert (e2 != NULL); /* evans 2001-07-18 */
96 if (constraintExpr_isBinaryExpr (e2) )
99 constraintExprBinaryOpKind op;
101 op = constraintExprData_binaryExprGetOp (e2->data);
103 e1 = constraintExprData_binaryExprGetExpr1(e2->data);
105 if (constraintExpr_isLit(e1) )
107 if (constraintExpr_getValue(e1) == 0 )
116 /* change expr + (o - expr) to (expr -expr) */
118 /*@only@*/ static constraintExpr removeZero (/*@only@*/ /*@returned@*/ constraintExpr expr)
120 constraintExpr expr1, expr2;
124 constraintExprBinaryOpKind op;
126 constraintExprBinaryOpKind tempOp;
128 if (!isZeroBinaryOp(expr) )
131 llassert (expr != NULL); /* evans 2001-07-18 */
133 expr1 = constraintExprData_binaryExprGetExpr1(expr->data);
134 expr2 = constraintExprData_binaryExprGetExpr2(expr->data);
135 op = constraintExprData_binaryExprGetOp(expr->data);
137 llassert( constraintExpr_isBinaryExpr(expr2) );
139 temp = constraintExprData_binaryExprGetExpr2 (expr2->data);
140 temp = constraintExpr_copy (temp);
142 tempOp = constraintExprData_binaryExprGetOp (expr2->data);
144 if (op == BINARYOP_PLUS)
146 else if (op == BINARYOP_MINUS)
148 if (tempOp == BINARYOP_PLUS)
150 else if (tempOp == BINARYOP_MINUS)
158 expr->data = constraintExprData_binaryExprSetExpr2(expr->data, temp);
159 expr->data = constraintExprData_binaryExprSetOp(expr->data, op);
165 /*@only@*/ constraintExpr constraintExpr_propagateConstants (/*@only@*/ constraintExpr expr,
166 /*@out@*/ bool * propagate,
167 /*@out@*/ int *literal)
169 constraintExpr expr1;
170 constraintExpr expr2;
171 bool propagate1, propagate2;
172 int literal1, literal2;
173 constraintExprBinaryOpKind op;
185 llassert (expr != NULL);
187 /* we simplify unaryExpr elsewhere */
188 if (expr->kind != binaryexpr)
191 op = constraintExprData_binaryExprGetOp (expr->data);
193 DPRINTF( (message("constraintExpr_propagateConstants: binaryexpr: %s", constraintExpr_unparse(expr) ) ) );
195 expr = removeZero(expr);
197 expr1 = constraintExprData_binaryExprGetExpr1(expr->data);
198 expr2 = constraintExprData_binaryExprGetExpr2(expr->data);
200 expr1 = constraintExpr_copy(expr1);
201 expr2 = constraintExpr_copy(expr2);
203 expr1 = constraintExpr_propagateConstants (expr1, &propagate1, &literal1);
204 expr2 = constraintExpr_propagateConstants (expr2, &propagate2, &literal2);
206 expr1 = removeZero(expr1);
207 expr2 = removeZero(expr2);
210 *propagate = propagate1 || propagate2;
212 if (op == BINARYOP_PLUS)
213 *literal = literal1 + literal2;
214 else if (op == BINARYOP_MINUS)
215 *literal = literal1 - literal2;
219 if ( constraintExpr_isLit (expr1) && constraintExpr_isLit (expr2) )
222 t1 = constraintExpr_getValue (expr1);
223 t2 = constraintExpr_getValue (expr2);
224 llassert(*propagate == FALSE);
227 constraintExpr_free (expr);
228 constraintExpr_free (expr1);
229 constraintExpr_free (expr2);
231 if (op == BINARYOP_PLUS )
232 return (constraintExpr_makeIntLiteral ( (t1+t2) ));
233 else if (op == BINARYOP_MINUS)
234 return (constraintExpr_makeIntLiteral ( (t1-t2) ));
240 if (constraintExpr_isLit (expr1) )
244 *literal += constraintExpr_getValue (expr1);
246 if (op == BINARYOP_PLUS)
248 constraintExpr_free(expr1);
249 constraintExpr_free(expr);
252 else if (op == BINARYOP_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) )
278 if ( op == BINARYOP_PLUS )
279 *literal += constraintExpr_getValue (expr2);
280 else if (op == BINARYOP_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);
425 We handle expressions containing sizeof with the rule
426 (sizeof type ) * Expr = Expr
428 This is the total wronge way to do this but...
429 it may be better than nothing
431 else if (lltok_isMult(tok) )
433 if ((t1->kind == XPR_SIZEOF) || (t1->kind == XPR_SIZEOFT) )
435 ret = constraintExpr_makeExprNode(t2);
437 else if ((t2->kind == XPR_SIZEOF) || (t2->kind == XPR_SIZEOFT) )
439 ret = constraintExpr_makeExprNode(t1);
443 ret = oldconstraintExpr_makeTermExprNode (e);
447 ret = oldconstraintExpr_makeTermExprNode (e);
451 t = exprData_getUopNode (data);
452 ret = constraintExpr_makeExprNode (t);
456 t = exprData_getUopNode (data);
457 tok = exprData_getUopTok (data);
458 if (lltok_isInc_Op (tok) )
461 temp = constraintExpr_makeExprNode(t);
462 ret = constraintExpr_makeIncConstraintExpr(temp);
464 else if (lltok_isDec_Op (tok) )
467 temp = constraintExpr_makeExprNode(t);
468 ret = constraintExpr_makeDecConstraintExpr(temp);
471 ret = oldconstraintExpr_makeTermExprNode (e);
475 t = exprData_getUopNode (data);
476 ret = constraintExpr_makeExprNode (t);
479 t = exprData_getCastNode (data);
480 ret = constraintExpr_makeExprNode (t);
483 t = exprData_getPairA(data);
484 ret = constraintExpr_makeExprNode(t);
485 /*@i3434*/ /*I'm not sure if this is right. I'm adding a break to quite LCLint*/
488 ret = oldconstraintExpr_makeTermExprNode (e);
494 /*@only@*/ constraintExpr constraintExpr_makeTermExprNode (/*@exposed@*/ exprNode e)
496 return oldconstraintExpr_makeTermExprNode(e);
499 static constraintExpr constraintExpr_makeTerm (/*@only@*/ constraintTerm t)
503 ret = constraintExpr_alloc();
505 ret->data = dmalloc (sizeof *(ret->data) );
506 ret->data->term = NULL;
507 ret->data = constraintExprData_termSetTerm (ret->data, t);
512 constraintExpr constraintExpr_makeTermsRef (/*@temp@*/ sRef s)
516 ret = constraintExpr_alloc();
518 ret->data = dmalloc (sizeof *(ret->data) );
519 t = constraintTerm_makesRef (s);
520 ret->data = constraintExprData_termSetTerm (ret->data, t);
524 /*@special@*/ static constraintExpr makeUnaryOpGeneric (void) /*@allocates result->data@*/ /*@defines result->kind@*/
527 ret = constraintExpr_alloc();
528 ret->kind = unaryExpr;
529 ret->data = dmalloc ( sizeof *(ret->data) );
530 ret->data->unaryOp.expr = constraintExpr_undefined;
534 /*@only@*/ static constraintExpr constraintExpr_makeUnaryOpConstraintExpr (/*@only@*/ constraintExpr cexpr)
537 ret = makeUnaryOpGeneric();
541 ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr);
542 ret->data = constraintExprData_unaryExprSetOp (ret->data, UNARYOP_UNDEFINED);
551 /*@only@*/ static constraintExpr constraintExpr_makeUnaryOp (/*@only@*/ constraintExpr cexpr, constraintExprUnaryOpKind Op )
554 ret = makeUnaryOpGeneric();
556 ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr);
557 ret->data = constraintExprData_unaryExprSetOp (ret->data, Op);
563 static constraintExpr constraintExpr_makeMaxSetConstraintExpr (/*@only@*/ constraintExpr c)
566 ret = constraintExpr_makeUnaryOp (c, MAXSET);
571 static constraintExpr constraintExpr_makeUnaryOpExprNode (/*@exposed@*/ exprNode expr)
575 sub = constraintExpr_makeExprNode (expr);
576 ret = constraintExpr_makeUnaryOpConstraintExpr(sub);
584 static constraintExpr constraintExpr_makeSRefUnaryOp (/*@temp@*/ /*@observer@*/ sRef s, constraintExprUnaryOpKind op)
589 t = constraintExpr_makeTermsRef (s);
590 ret = constraintExpr_makeUnaryOpConstraintExpr (t);
591 ret->data = constraintExprData_unaryExprSetOp (ret->data, op);
597 constraintExpr constraintExpr_makeSRefMaxRead( sRef s)
599 return (constraintExpr_makeSRefUnaryOp (s, MAXREAD) );
603 constraintExpr constraintExpr_makeSRefMaxset ( sRef s)
605 return (constraintExpr_makeSRefUnaryOp (s, MAXSET) );
609 constraintExpr constraintExpr_parseMakeUnaryOp (lltok op, constraintExpr cexpr)
612 ret = constraintExpr_makeUnaryOpConstraintExpr ( cexpr);
617 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXSET);
620 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD);
623 llfatalbug(message("Unhandled Operation in Constraint") );
629 constraintExpr constraintExpr_makeMaxSetExpr (/*@exposed@*/ exprNode expr)
632 ret = constraintExpr_makeExprNode (expr);
634 ret = constraintExpr_makeMaxSetConstraintExpr (ret);
636 llassert (ret != NULL);
641 constraintExpr constraintExpr_makeMaxReadExpr (exprNode expr)
644 ret = constraintExpr_makeUnaryOpExprNode(expr);
645 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD);
651 /*@unused@*/ static constraintExpr constraintExpr_makeMinSetExpr (/*@exposed@*/ exprNode expr)
654 ret = constraintExpr_makeUnaryOpExprNode(expr);
655 ret->data = constraintExprData_unaryExprSetOp (ret->data, MINSET);
660 /*@unused@*/ static constraintExpr constraintExpr_makeMinReadExpr (/*@exposed@*/ exprNode expr)
663 ret = constraintExpr_makeUnaryOpExprNode(expr);
664 ret->data = constraintExprData_unaryExprSetOp (ret->data, MINREAD);
670 constraintExpr constraintExpr_makeValueExpr (/*@exposed@*/ exprNode expr)
673 ret = constraintExpr_makeExprNode (expr);
678 constraintExpr constraintExpr_makeIntLiteral (long i)
682 ret = constraintExpr_alloc();
684 ret->data = dmalloc (sizeof *(ret->data) );
685 t = constraintTerm_makeIntLiteral (i);
686 ret->data = constraintExprData_termSetTerm (ret->data, t);
691 constraintExpr constraintExpr_makeValueInt (int i)
693 return constraintExpr_makeIntLiteral (i);
698 /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void)
699 /*@allocates result->data @*/ /*@sets result->kind @*/
702 ret = constraintExpr_alloc();
703 ret->kind = binaryexpr;
704 ret->data = dmalloc ( sizeof *(ret->data) );
706 ret->data->binaryOp.expr1 = constraintExpr_undefined;
707 ret->data->binaryOp.expr2 = constraintExpr_undefined;
713 static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExpr (/*@only@*/constraintExpr expr1, /*@only@*/ constraintExpr expr2)
718 ret = constraintExpr_makeBinaryOp();
719 ret->data = constraintExprData_binaryExprSetExpr1 (ret->data, expr1);
720 ret->data = constraintExprData_binaryExprSetExpr2 (ret->data, expr2);
721 ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED);
726 constraintExpr constraintExpr_parseMakeBinaryOp (/*@only@*/ constraintExpr expr1, lltok op,/*@only@*/ constraintExpr expr2)
729 ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2);
731 ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS);
732 else if (op.tok == TMINUS)
733 ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS);
743 /*@unused@*/ static constraintExpr constraintExpr_makeBinaryOpExprNode (/*@exposed@*/ exprNode expr1, /*@exposed@*/ exprNode expr2)
746 constraintExpr sub1, sub2;
747 sub1 = constraintExpr_makeTermExprNode (expr1);
748 sub2 = constraintExpr_makeTermExprNode (expr2);
749 ret = constraintExpr_makeBinaryOpConstraintExpr(sub1, sub2);
755 constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/ constraintExpr expr, int literal)
758 constraintExpr constExpr;
760 constExpr = constraintExpr_makeIntLiteral (literal);
761 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, constExpr);
762 ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS);
767 constraintExpr constraintExpr_makeDecConstraintExpr (/*@only@*/constraintExpr expr)
772 inc = constraintExpr_makeIntLiteral (1);
773 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc);
774 ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS);
779 /*@only@*/ constraintExpr constraintExpr_makeSubtractExpr (/*@only@*/ constraintExpr expr, /*@only@*/ constraintExpr addent)
783 DPRINTF ( (message ("Making subtract expression") ) );
785 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent);
786 ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_MINUS);
791 constraintExpr constraintExpr_makeAddExpr (/*@only@*/
792 constraintExpr expr, /*@only@*/
793 constraintExpr addent)
797 DPRINTF ( (message ("Doing addTerm simplification") ) );
799 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent);
800 ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_PLUS);
806 constraintExpr constraintExpr_makeIncConstraintExpr (/*@only@*/ constraintExpr expr)
811 inc = constraintExpr_makeIntLiteral (1);
812 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc);
813 ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS);
818 static cstring constraintExprUnaryOpKind_print (constraintExprUnaryOpKind op)
823 return message("maxSet");
825 return message("minSet");
827 return message("maxRead");
829 return message("minRead");
832 return message ("<(Unary OP OTHER>");
838 static cstring constraintExprBinaryOpKind_print (constraintExprBinaryOpKind op)
850 return message ("<binary OP Unknown>");
854 bool constraintExpr_similar (constraintExpr expr1, constraintExpr expr2)
856 constraintExprKind kind;
858 llassert (expr1 != NULL);
859 llassert (expr2 != NULL);
860 if (expr1->kind != expr2->kind)
868 return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data),
869 constraintExprData_termGetTerm(expr2->data) );
870 /*@notreached@*/ break;
873 if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) )
876 return (constraintExpr_similar (
877 constraintExprData_unaryExprGetExpr (expr1->data),
878 constraintExprData_unaryExprGetExpr (expr2->data)
882 if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) )
885 if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr1 (expr1->data),
886 constraintExprData_binaryExprGetExpr1 (expr2->data)) )
889 if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr2 (expr1->data),
890 constraintExprData_binaryExprGetExpr2 (expr2->data)) )
905 bool constraintExpr_same (constraintExpr expr1, constraintExpr expr2)
907 constraintExprKind kind;
909 llassert (expr1 != NULL);
910 llassert (expr2 != NULL);
911 if (expr1->kind != expr2->kind)
919 return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data),
920 constraintExprData_termGetTerm(expr2->data) );
921 /*@notreached@*/ break;
924 if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) )
927 return (constraintExpr_same (
928 constraintExprData_unaryExprGetExpr (expr1->data),
929 constraintExprData_unaryExprGetExpr (expr2->data)
934 if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) )
937 if (! constraintExpr_same (constraintExprData_binaryExprGetExpr1 (expr1->data),
938 constraintExprData_binaryExprGetExpr1 (expr2->data)) )
941 if (! constraintExpr_same (constraintExprData_binaryExprGetExpr2 (expr1->data),
942 constraintExprData_binaryExprGetExpr2 (expr2->data)) )
946 /*@notreached@*/ break;
957 bool constraintExpr_search (/*@observer@*/ constraintExpr c, /*@observer@*/ constraintExpr old)
960 constraintExprKind kind;
963 if ( constraintExpr_similar (c, old) )
965 DPRINTF((message ("Found %q",
966 constraintExpr_unparse(old)
978 temp = constraintExprData_unaryExprGetExpr (c->data);
979 ret = ret || constraintExpr_search (temp, old);
983 temp = constraintExprData_binaryExprGetExpr1 (c->data);
984 ret = ret || constraintExpr_search(temp, old);
986 temp = constraintExprData_binaryExprGetExpr2 (c->data);
987 ret = ret || constraintExpr_search(temp, old);
997 /*@only@*/ constraintExpr constraintExpr_searchandreplace (/*@only@*/ /*@unique@*/ constraintExpr c, /*@temp@*/ constraintExpr old, /*@temp@*/ constraintExpr newExpr )
999 constraintExprKind kind;
1000 constraintExpr temp;
1002 if ( constraintExpr_similar (c, old) )
1005 DPRINTF((message ("Replacing %s with %s",
1006 constraintExpr_unparse(old), constraintExpr_unparse(newExpr)
1008 constraintExpr_free(c);
1009 return constraintExpr_copy (newExpr);
1019 temp = constraintExprData_unaryExprGetExpr (c->data);
1020 temp = constraintExpr_copy(temp);
1021 temp = constraintExpr_searchandreplace (temp, old, newExpr);
1022 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1026 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1027 temp = constraintExpr_copy(temp);
1028 temp = constraintExpr_searchandreplace (temp, old, newExpr);
1029 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1031 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1032 temp = constraintExpr_copy(temp);
1033 temp = constraintExpr_searchandreplace (temp, old, newExpr);
1034 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1043 static constraintExpr constraintExpr_simplifyChildren (/*@returned@*/ constraintExpr c)
1045 constraintExprKind kind;
1046 constraintExpr temp;
1055 temp = constraintExprData_unaryExprGetExpr (c->data);
1056 temp = constraintExpr_copy(temp);
1057 temp = constraintExpr_simplify (temp);
1058 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1061 DPRINTF((message("constraintExpr_simplfiyChildren: simplify binary expression: %s",constraintExpr_unparse(c) ) ) );
1062 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1063 temp = constraintExpr_copy(temp);
1064 temp = constraintExpr_simplify (temp);
1066 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1068 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1069 temp = constraintExpr_copy(temp);
1070 temp = constraintExpr_simplify (temp);
1072 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1082 constraintExpr constraintExpr_setFileloc (/*@returned@*/ constraintExpr c, fileloc loc) /*@modifies c @*/
1085 constraintExpr temp;
1087 llassert(c != NULL);
1092 t = constraintExprData_termGetTerm (c->data);
1093 t = constraintTerm_copy(t);
1094 t = constraintTerm_setFileloc (t, loc);
1095 c->data = constraintExprData_termSetTerm (c->data, t);
1099 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1100 temp = constraintExpr_copy(temp);
1101 temp = constraintExpr_setFileloc (temp, loc);
1102 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1104 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1105 temp = constraintExpr_copy(temp);
1106 temp = constraintExpr_setFileloc (temp, loc);
1107 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1110 temp = constraintExprData_unaryExprGetExpr (c->data);
1111 temp = constraintExpr_copy(temp);
1112 temp = constraintExpr_setFileloc (temp, loc);
1113 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1119 static /*@only@*/ constraintExpr constraintExpr_simplifybinaryExpr (/*@only@*/constraintExpr c)
1121 constraintExpr e1, e2;
1122 constraintExprBinaryOpKind op;
1124 e1 = constraintExprData_binaryExprGetExpr1 (c->data);
1125 e2 = constraintExprData_binaryExprGetExpr2 (c->data);
1127 if (constraintExpr_canGetValue (e1) && constraintExpr_canGetValue(e2) )
1131 i = constraintExpr_getValue(e1) + constraintExpr_getValue (e2);
1132 constraintExpr_free(c);
1133 c = constraintExpr_makeIntLiteral (i);
1137 op = constraintExprData_binaryExprGetOp (c->data);
1138 if (op == BINARYOP_MINUS)
1139 if (constraintExpr_similar(e1, e2) )
1141 constraintExpr_free(c);
1142 c = constraintExpr_makeIntLiteral (0);
1150 this thing takes the lexpr and expr of a constraint and modifies lexpr
1151 and returns a (possiblly new) value for expr
1153 /* 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 */
1155 /* the approach is a little Kludgy but seems to work. I should probably use something cleaner at some point ... */
1158 /*@only@*/ constraintExpr constraintExpr_solveBinaryExpr (constraintExpr lexpr, /*@only@*/ constraintExpr expr)
1160 constraintExpr expr1, expr2;
1161 constraintExprBinaryOpKind op;
1163 if (lexpr->kind != binaryexpr)
1166 expr2 = constraintExprData_binaryExprGetExpr2 (lexpr->data);
1167 expr1 = constraintExprData_binaryExprGetExpr1 (lexpr->data);
1169 op = constraintExprData_binaryExprGetOp (lexpr->data);
1171 expr1 = constraintExpr_copy(expr1);
1172 expr2 = constraintExpr_copy(expr2);
1174 /* drl possible problem : warning make sure this works */
1176 lexpr->kind = expr1->kind;
1177 sfree (lexpr->data);
1179 lexpr->data = copyExprData (expr1->data, expr1->kind);
1180 constraintExpr_free(expr1);
1182 if (op == BINARYOP_PLUS)
1183 expr = constraintExpr_makeSubtractExpr (expr, expr2);
1184 else if (op == BINARYOP_MINUS)
1185 expr = constraintExpr_makeAddExpr (expr, expr2);
1193 #warning this needs to be checked
1194 expr = constraintExpr_solveBinaryExpr (expr1, expr);
1196 expr = constraintExpr_solveBinaryExpr (expr2, expr);
1201 static /*@only@*/ constraintExpr constraintExpr_simplifyunaryExpr (/*@only@*/ constraintExpr c)
1205 llassert (c->kind == unaryExpr);
1207 DPRINTF ((message ("Doing constraintExpr_simplifyunaryExpr:%s", constraintExpr_unparse (c) ) ) );
1209 if ( (constraintExprData_unaryExprGetOp (c->data) != MAXSET) &&
1210 (constraintExprData_unaryExprGetOp (c->data) != MAXREAD) )
1215 exp = constraintExprData_unaryExprGetExpr (c->data);
1216 exp = constraintExpr_copy(exp);
1218 if (exp->kind == term)
1220 constraintTerm cterm;
1222 cterm = constraintExprData_termGetTerm (exp->data);
1224 if (constraintTerm_isStringLiteral(cterm) )
1227 val = constraintTerm_getStringLiteral (cterm);
1228 if (constraintExprData_unaryExprGetOp (c->data) == MAXSET)
1230 constraintExpr temp;
1232 temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) );
1234 constraintExpr_free(c);
1235 constraintExpr_free(exp);
1240 if (constraintExprData_unaryExprGetOp (c->data) == MAXREAD)
1242 constraintExpr temp;
1244 temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) );
1246 constraintExpr_free(c);
1247 constraintExpr_free(exp);
1254 /* slight Kludge to hanlde var [] = { , , };
1255 ** type syntax I don't think this is sounds but it should be good
1256 ** enough. The C stanrad is very confusing about initialization
1260 if (constraintTerm_isInitBlock(cterm) )
1262 constraintExpr temp;
1265 len = constraintTerm_getInitBlockLength(cterm);
1267 temp = constraintExpr_makeIntLiteral (len );
1269 constraintExpr_free(c);
1270 DPRINTF(( message("Changed too %q", constraintExpr_print(temp)
1272 constraintExpr_free(exp);
1276 constraintExpr_free(exp);
1280 if (exp->kind != binaryexpr)
1282 constraintExpr_free(exp);
1286 if (constraintExprData_binaryExprGetOp (exp->data) == BINARYOP_PLUS )
1289 /* if (constraintExpr_canGetValue (constraintExprData_binaryExprGetExpr2 (exp->data) ) ) */
1292 constraintExpr temp, temp2;
1294 DPRINTF ( (message ("Doing fancy simplification") ) );
1296 temp = constraintExprData_binaryExprGetExpr2 (exp->data);
1298 temp2 = constraintExprData_binaryExprGetExpr1 (exp->data);
1300 temp2 = constraintExpr_copy(temp2);
1301 c->data = constraintExprData_unaryExprSetExpr (c->data, temp2);
1304 temp = constraintExpr_copy (temp);
1306 c = constraintExpr_makeSubtractExpr (c, temp);
1308 DPRINTF ( (message ("Done fancy simplification:%s", constraintExpr_unparse (c) ) ) );
1312 DPRINTF ( (message ("constraintExpr_simplifyUnaryExpr: Done simplification:%s", constraintExpr_unparse (c) ) ) );
1314 constraintExpr_free(exp);
1319 /*@only@*/ constraintExpr constraintExpr_simplify (/*@only@*/ constraintExpr c)
1321 constraintExprKind kind;
1325 DPRINTF ( (message ("Doing constraintExpr_simplify:%s", constraintExpr_unparse (c) ) ) );
1330 /*I think this is an LCLint bug */
1332 ret = constraintExpr_copy(c);
1334 constraintExpr_free(c);
1336 ret = constraintExpr_simplifyChildren (ret);
1338 ret = constraintExpr_combineConstants (ret);
1340 ret = constraintExpr_simplifyChildren (ret);
1348 t = constraintExprData_termGetTerm (ret->data);
1349 t = constraintTerm_copy(t);
1350 t = constraintTerm_simplify (t);
1351 ret->data = constraintExprData_termSetTerm (ret->data, t);
1354 ret = constraintExpr_simplifyunaryExpr (ret);
1357 ret = constraintExpr_simplifybinaryExpr (ret);
1363 DPRINTF ( (message ("constraintExpr_simplify returning :%s", constraintExpr_unparse (ret) ) ) );
1369 cstring constraintExpr_unparse (/*@temp@*/ /*@observer@*/ constraintExpr ex) /*@*/
1372 constraintExprKind kind;
1374 llassert (ex != NULL);
1382 if (context_getFlag (FLG_PARENCONSTRAINT) )
1384 st = message ("(%q) ", constraintTerm_print (constraintExprData_termGetTerm (ex->data)));
1388 st = message ("%q", constraintTerm_print (constraintExprData_termGetTerm (ex->data)));
1392 st = message ("%q(%q)",
1393 constraintExprUnaryOpKind_print (constraintExprData_unaryExprGetOp (ex->data) ),
1394 constraintExpr_unparse (constraintExprData_unaryExprGetExpr (ex->data) )
1398 if (context_getFlag (FLG_PARENCONSTRAINT) )
1400 st = message ("(%q) %q (%q)",
1401 constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ),
1402 constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data)
1404 constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) )
1409 st = message ("%q %q %q",
1410 constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ),
1411 constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data)
1413 constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) )
1420 st = message ("error");
1424 DPRINTF((message ("constraintExpr_unparse: '%s'",st) ) );
1428 constraintExpr constraintExpr_doSRefFixBaseParam (/*@returned@*/ constraintExpr expr, exprNodeList arglist)
1430 constraintTerm Term;
1431 constraintExprKind kind;
1432 constraintExpr expr1, expr2;
1433 constraintExprData data;
1434 llassert (expr != NULL);
1443 Term = constraintExprData_termGetTerm(data);
1444 Term = constraintTerm_copy(Term);
1446 Term = constraintTerm_doSRefFixBaseParam (Term, arglist);
1447 data = constraintExprData_termSetTerm(data, Term);
1450 expr1 = constraintExprData_unaryExprGetExpr (data);
1451 expr1 = constraintExpr_copy(expr1);
1453 expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist);
1454 data = constraintExprData_unaryExprSetExpr (data, expr1);
1457 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1458 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1460 expr1 = constraintExpr_copy(expr1);
1461 expr2 = constraintExpr_copy(expr2);
1463 expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist);
1464 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1465 expr2 = constraintExpr_doSRefFixBaseParam (expr2, arglist);
1466 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1476 /*@only@*/ constraintExpr constraintExpr_doSRefFixConstraintParam (/*@only@*/ constraintExpr expr, exprNodeList arglist) /*@modifies expr@*/
1478 constraintExprKind kind;
1479 constraintExpr expr1, expr2;
1480 constraintExprData data;
1481 llassert (expr != NULL);
1490 expr = doSRefFixConstraintParamTerm (expr, arglist);
1493 expr1 = constraintExprData_unaryExprGetExpr (data);
1494 expr1 = constraintExpr_copy(expr1);
1495 expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist);
1496 data = constraintExprData_unaryExprSetExpr (data, expr1);
1499 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1500 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1502 expr1 = constraintExpr_copy(expr1);
1503 expr2 = constraintExpr_copy(expr2);
1505 expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist);
1506 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1507 expr2 = constraintExpr_doSRefFixConstraintParam (expr2, arglist);
1508 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1518 /*@only@*/ constraintExpr constraintExpr_doFixResult (/*@only@*/ constraintExpr expr, /*@observer@*/ exprNode fcnCall)
1520 constraintExprKind kind;
1521 constraintExpr expr1, expr2;
1522 constraintExprData data;
1523 llassert (expr != NULL);
1532 expr = doFixResultTerm (expr, fcnCall);
1535 expr1 = constraintExprData_unaryExprGetExpr (data);
1536 expr1 = constraintExpr_copy(expr1);
1538 expr1 = constraintExpr_doFixResult (expr1, fcnCall);
1539 data = constraintExprData_unaryExprSetExpr (data, expr1);
1542 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1543 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1545 expr1 = constraintExpr_copy(expr1);
1546 expr2 = constraintExpr_copy(expr2);
1548 expr1 = constraintExpr_doFixResult (expr1, fcnCall);
1549 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1550 expr2 = constraintExpr_doFixResult (expr2, fcnCall);
1551 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1561 cstring constraintExpr_print (constraintExpr expr) /*@*/
1563 return constraintExpr_unparse (expr);
1566 bool constraintExpr_hasMaxSet (constraintExpr expr) /*@*/
1570 t = constraintExpr_unparse(expr);
1572 if (cstring_containsLit(t, "maxSet") != NULL )
1586 /*returns 1 0 -1 like strcmp
1592 int constraintExpr_compare (constraintExpr expr1, constraintExpr expr2)
1594 long value1, value2;
1596 if (constraintExpr_similar (expr1, expr2) )
1601 value1 = constraintExpr_getValue(expr1);
1602 value2 = constraintExpr_getValue(expr2);
1604 if (value1 > value2)
1607 if (value1 == value2)
1614 long constraintExpr_getValue (constraintExpr expr)
1616 llassert (expr->kind == term);
1617 return (constraintTerm_getValue (constraintExprData_termGetTerm (expr->data)));
1620 bool constraintExpr_canGetValue (constraintExpr expr)
1625 return constraintTerm_canGetValue (constraintExprData_termGetTerm (expr->data) );
1634 fileloc constraintExpr_getFileloc (constraintExpr expr)
1638 constraintExprKind kind;
1645 t = constraintExprData_termGetTerm (expr->data);
1646 return (constraintTerm_getFileloc (t) );
1650 e = constraintExprData_unaryExprGetExpr (expr->data);
1651 return (constraintExpr_getFileloc (e) );
1655 e = constraintExprData_binaryExprGetExpr1 (expr->data);
1656 return (constraintExpr_getFileloc (e) );
1661 return (fileloc_undefined);
1664 /*drl moved from constriantTerm.c 5/20/001*/
1665 static /*@only@*/ constraintExpr
1666 doFixResultTerm (/*@only@*/ constraintExpr e, /*@exposed@*/ exprNode fcnCall)
1670 /*maybe this should move to cosntraintExpr.c -drl7x 5/18/01*/
1673 constraintExprData data = e->data;
1674 constraintExprKind kind = e->kind;
1678 llassert(kind == term);
1680 t = constraintExprData_termGetTerm (data);
1681 llassert (constraintTerm_isDefined(t) );
1684 switch (constraintTerm_getKind(t) )
1692 s = constraintTerm_getSRef(t);
1693 if (sRef_isResult (s))
1695 ret = constraintExpr_makeExprNode(fcnCall);
1696 constraintExpr_free(e);
1712 /*drl moved from constriantTerm.c 5/20/001*/
1713 /*@only@*/ static constraintExpr
1714 doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr e, /*@observer@*/ /*@temp@*/ exprNodeList arglist)
1718 constraintExprData data = e->data;
1720 constraintExprKind kind = e->kind;
1724 llassert(kind == term);
1726 t = constraintExprData_termGetTerm (data);
1727 llassert (constraintTerm_isDefined(t) );
1731 DPRINTF (("Fixing: %s", constraintExpr_print (e)));
1733 switch (constraintTerm_getKind(t))
1736 DPRINTF((message ("%q @ %q ", constraintTerm_print(t),
1737 fileloc_unparse (constraintTerm_getFileloc(t) ) ) ));
1740 DPRINTF((message (" %q ", constraintTerm_print (t)) ));
1744 /* evans 2001-07-24: constants should use the original term */
1745 if (!constraintTerm_canGetValue (t))
1747 DPRINTF ((message("Doing sRef_fixConstraintParam for %q ",
1748 constraintTerm_print (t) ) ));
1749 ret = sRef_fixConstraintParam (constraintTerm_getSRef(t), arglist);
1751 constraintExpr_free (e);
1753 DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ",
1754 constraintExpr_print (ret) ) ));
1756 } /*@=branchstate@*/
1768 /* bool constraintExpr_includesTerm (constraintExpr expr, constraintTerm term) */
1770 /* if (constraintTerm_hasTerm (expr->term, term) ) */
1773 /* if ( (expr->expr) != NULL) */
1775 /* return ( constraintExpr_includesTerm (expr->expr, term) ); */
1781 /*drl added 6/11/01 */
1782 bool constraintExpr_isBinaryExpr (/*@observer@*/ constraintExpr c)
1784 if (c->kind == binaryexpr)
1791 /*drl added 8/08/001 */
1792 bool constraintExpr_isTerm (/*@observer@*/ constraintExpr c) /*@*/
1794 if (c->kind == term)
1801 /*@observer@*/ /*@temp@*/ constraintTerm constraintExpr_getTerm ( /*@temp@*/ /*@observer@*/ constraintExpr c) /*@*/
1803 constraintTerm term;
1805 llassert(constraintExpr_isTerm(c) );
1807 term = constraintExprData_termGetTerm(c->data);
1812 static void binaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f)
1814 constraintExpr expr1;
1815 constraintExprBinaryOpKind binaryOp;
1816 constraintExpr expr2;
1819 binaryOp = constraintExprData_binaryExprGetOp (data);
1821 fprintf(f, "%d\n", (int) binaryOp);
1823 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1824 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1828 constraintExpr_dump(expr1, f);
1831 constraintExpr_dump(expr2, f);
1835 static constraintExpr binaryExpr_undump (FILE *f)
1837 constraintExpr expr1;
1838 constraintExprBinaryOpKind binaryOp;
1839 constraintExpr expr2;
1848 str = mstring_create (MAX_DUMP_LINE_LENGTH);
1850 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1853 binaryOp = (constraintExprBinaryOpKind) reader_getInt(&str);
1855 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1857 reader_checkChar (&str, 'e');
1858 reader_checkChar (&str, '1');
1860 expr1 = constraintExpr_undump (f);
1862 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1864 reader_checkChar (&str, 'e');
1865 reader_checkChar (&str, '2');
1867 expr2 = constraintExpr_undump (f);
1869 ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2);
1870 ret->data = constraintExprData_binaryExprSetOp(ret->data, binaryOp);
1878 static void unaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f)
1881 constraintExpr expr;
1882 constraintExprUnaryOpKind unaryOp;
1884 unaryOp = constraintExprData_unaryExprGetOp (data);
1886 fprintf(f, "%d\n", (int) unaryOp);
1888 expr = constraintExprData_unaryExprGetExpr (data);
1890 constraintExpr_dump(expr, f);
1893 static constraintExpr unaryExpr_undump ( FILE *f)
1896 constraintExpr expr;
1897 constraintExprUnaryOpKind unaryOp;
1903 str = mstring_create (MAX_DUMP_LINE_LENGTH);
1905 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1907 unaryOp = (constraintExprUnaryOpKind) reader_getInt(&str);
1909 expr = constraintExpr_undump (f);
1911 ret = constraintExpr_makeUnaryOp (expr, unaryOp);
1918 void constraintExpr_dump (/*@observer@*/ constraintExpr expr, FILE *f)
1920 constraintExprKind kind;
1926 fprintf(f,"%d\n", (int) kind);
1931 t = constraintExprData_termGetTerm (expr->data);
1932 constraintTerm_dump (t, f);
1935 unaryExpr_dump (expr->data, f);
1938 binaryExpr_dump (expr->data, f);
1943 /*@only@*/ constraintExpr constraintExpr_undump (FILE *f)
1945 constraintExprKind kind;
1952 s = mstring_create (MAX_DUMP_LINE_LENGTH);
1956 s = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1958 kind = (constraintExprKind) reader_getInt(&s);
1965 t = constraintTerm_undump (f);
1966 ret = constraintExpr_makeTerm(t);
1969 ret = unaryExpr_undump (f);
1972 ret = binaryExpr_undump (f);
1980 int constraintExpr_getDepth (constraintExpr ex)
1984 constraintExprKind kind;
1986 llassert (ex != NULL);
1996 ret = constraintExpr_getDepth (constraintExprData_unaryExprGetExpr (ex->data) );
2002 ret = constraintExpr_getDepth (constraintExprData_binaryExprGetExpr1 (ex->data) );
2006 ret += constraintExpr_getDepth (constraintExprData_binaryExprGetExpr2 (ex->data) );