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);
654 /*@unused@*/ static constraintExpr constraintExpr_makeMinSetExpr (/*@exposed@*/ exprNode expr)
657 ret = constraintExpr_makeUnaryOpExprNode(expr);
658 ret->data = constraintExprData_unaryExprSetOp (ret->data, MINSET);
663 /*@unused@*/ static constraintExpr constraintExpr_makeMinReadExpr (/*@exposed@*/ exprNode expr)
666 ret = constraintExpr_makeUnaryOpExprNode(expr);
667 ret->data = constraintExprData_unaryExprSetOp (ret->data, MINREAD);
673 constraintExpr constraintExpr_makeValueExpr (/*@exposed@*/ exprNode expr)
676 ret = constraintExpr_makeExprNode (expr);
681 constraintExpr constraintExpr_makeIntLiteral (long i)
685 ret = constraintExpr_alloc();
687 ret->data = dmalloc (sizeof *(ret->data) );
688 t = constraintTerm_makeIntLiteral (i);
689 ret->data = constraintExprData_termSetTerm (ret->data, t);
694 constraintExpr constraintExpr_makeValueInt (int i)
696 return constraintExpr_makeIntLiteral (i);
701 /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void)
702 /*@allocates result->data @*/ /*@sets result->kind @*/
705 ret = constraintExpr_alloc();
706 ret->kind = binaryexpr;
707 ret->data = dmalloc ( sizeof *(ret->data) );
709 ret->data->binaryOp.expr1 = constraintExpr_undefined;
710 ret->data->binaryOp.expr2 = constraintExpr_undefined;
712 // ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED);
717 static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExpr (/*@only@*/constraintExpr expr1, /*@only@*/ constraintExpr expr2)
722 ret = constraintExpr_makeBinaryOp();
723 ret->data = constraintExprData_binaryExprSetExpr1 (ret->data, expr1);
724 ret->data = constraintExprData_binaryExprSetExpr2 (ret->data, expr2);
725 ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED);
730 constraintExpr constraintExpr_parseMakeBinaryOp (/*@only@*/ constraintExpr expr1, lltok op,/*@only@*/ constraintExpr expr2)
733 ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2);
735 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
736 else if (op.tok == TMINUS)
737 ret->data = constraintExprData_binaryExprSetOp(ret->data, MINUS);
746 /*@unused@*/ static constraintExpr constraintExpr_makeBinaryOpExprNode (/*@exposed@*/ exprNode expr1, /*@exposed@*/ exprNode expr2)
749 constraintExpr sub1, sub2;
750 sub1 = constraintExpr_makeTermExprNode (expr1);
751 sub2 = constraintExpr_makeTermExprNode (expr2);
752 ret = constraintExpr_makeBinaryOpConstraintExpr(sub1, sub2);
757 constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/ constraintExpr expr, int literal)
760 constraintExpr constExpr;
762 constExpr = constraintExpr_makeIntLiteral (literal);
763 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, constExpr);
764 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
769 constraintExpr constraintExpr_makeDecConstraintExpr (/*@only@*/constraintExpr expr)
774 inc = constraintExpr_makeIntLiteral (1);
775 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc);
776 ret->data = constraintExprData_binaryExprSetOp(ret->data, MINUS);
781 /*@only@*/ constraintExpr constraintExpr_makeSubtractExpr (/*@only@*/ constraintExpr expr, /*@only@*/ constraintExpr addent)
785 DPRINTF ( (message ("Making subtract expression") ) );
787 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent);
788 ret->data = constraintExprData_binaryExprSetOp (ret->data, MINUS);
793 constraintExpr constraintExpr_makeAddExpr (/*@only@*/
794 constraintExpr expr, /*@only@*/
795 constraintExpr addent)
799 DPRINTF ( (message ("Doing addTerm simplification") ) );
801 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent);
802 ret->data = constraintExprData_binaryExprSetOp (ret->data, PLUS);
808 constraintExpr constraintExpr_makeIncConstraintExpr (/*@only@*/ constraintExpr expr)
813 inc = constraintExpr_makeIntLiteral (1);
814 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc);
815 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
820 static cstring constraintExprUnaryOpKind_print (constraintExprUnaryOpKind op)
825 return message("maxSet");
827 return message("minSet");
829 return message("maxRead");
831 return message("minRead");
834 return message ("<(Unary OP OTHER>");
840 static cstring constraintExprBinaryOpKind_print (constraintExprBinaryOpKind op)
852 return message ("<binary OP Unknown>");
856 bool constraintExpr_similar (constraintExpr expr1, constraintExpr expr2)
858 constraintExprKind kind;
860 llassert (expr1 != NULL);
861 llassert (expr2 != NULL);
862 if (expr1->kind != expr2->kind)
870 return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data),
871 constraintExprData_termGetTerm(expr2->data) );
872 /*@notreached@*/ break;
875 if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) )
878 return (constraintExpr_similar (
879 constraintExprData_unaryExprGetExpr (expr1->data),
880 constraintExprData_unaryExprGetExpr (expr2->data)
884 if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) )
887 if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr1 (expr1->data),
888 constraintExprData_binaryExprGetExpr1 (expr2->data)) )
891 if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr2 (expr1->data),
892 constraintExprData_binaryExprGetExpr2 (expr2->data)) )
907 bool constraintExpr_same (constraintExpr expr1, constraintExpr expr2)
909 constraintExprKind kind;
911 llassert (expr1 != NULL);
912 llassert (expr2 != NULL);
913 if (expr1->kind != expr2->kind)
921 return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data),
922 constraintExprData_termGetTerm(expr2->data) );
923 /*@notreached@*/ break;
926 if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) )
929 return (constraintExpr_same (
930 constraintExprData_unaryExprGetExpr (expr1->data),
931 constraintExprData_unaryExprGetExpr (expr2->data)
936 if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) )
939 if (! constraintExpr_same (constraintExprData_binaryExprGetExpr1 (expr1->data),
940 constraintExprData_binaryExprGetExpr1 (expr2->data)) )
943 if (! constraintExpr_same (constraintExprData_binaryExprGetExpr2 (expr1->data),
944 constraintExprData_binaryExprGetExpr2 (expr2->data)) )
948 /*@notreached@*/ break;
959 bool constraintExpr_search (/*@observer@*/ constraintExpr c, /*@observer@*/ constraintExpr old)
962 constraintExprKind kind;
965 if ( constraintExpr_similar (c, old) )
967 DPRINTF((message ("Found %q",
968 constraintExpr_unparse(old)
980 temp = constraintExprData_unaryExprGetExpr (c->data);
981 ret = ret || constraintExpr_search (temp, old);
985 temp = constraintExprData_binaryExprGetExpr1 (c->data);
986 ret = ret || constraintExpr_search(temp, old);
988 temp = constraintExprData_binaryExprGetExpr2 (c->data);
989 ret = ret || constraintExpr_search(temp, old);
999 /*@only@*/ constraintExpr constraintExpr_searchandreplace (/*@only@*/ /*@unique@*/ constraintExpr c, /*@temp@*/ constraintExpr old, /*@temp@*/ constraintExpr newExpr )
1001 constraintExprKind kind;
1002 constraintExpr temp;
1004 if ( constraintExpr_similar (c, old) )
1007 DPRINTF((message ("Replacing %s with %s",
1008 constraintExpr_unparse(old), constraintExpr_unparse(newExpr)
1010 constraintExpr_free(c);
1011 return constraintExpr_copy (newExpr);
1021 temp = constraintExprData_unaryExprGetExpr (c->data);
1022 temp = constraintExpr_copy(temp);
1023 temp = constraintExpr_searchandreplace (temp, old, newExpr);
1024 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1028 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1029 temp = constraintExpr_copy(temp);
1030 temp = constraintExpr_searchandreplace (temp, old, newExpr);
1031 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1033 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1034 temp = constraintExpr_copy(temp);
1035 temp = constraintExpr_searchandreplace (temp, old, newExpr);
1036 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1045 static constraintExpr constraintExpr_simplifyChildren (/*@returned@*/ constraintExpr c)
1047 constraintExprKind kind;
1048 constraintExpr temp;
1057 temp = constraintExprData_unaryExprGetExpr (c->data);
1058 temp = constraintExpr_copy(temp);
1059 temp = constraintExpr_simplify (temp);
1060 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1063 DPRINTF((message("constraintExpr_simplfiyChildren: simplify binary expression: %s",constraintExpr_unparse(c) ) ) );
1064 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1065 temp = constraintExpr_copy(temp);
1066 temp = constraintExpr_simplify (temp);
1068 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1070 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1071 temp = constraintExpr_copy(temp);
1072 temp = constraintExpr_simplify (temp);
1074 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1084 constraintExpr constraintExpr_setFileloc (/*@returned@*/ constraintExpr c, fileloc loc) /*@modifies c @*/
1087 constraintExpr temp;
1089 llassert(c != NULL);
1094 t = constraintExprData_termGetTerm (c->data);
1095 t = constraintTerm_copy(t);
1096 t = constraintTerm_setFileloc (t, loc);
1097 c->data = constraintExprData_termSetTerm (c->data, t);
1101 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1102 temp = constraintExpr_copy(temp);
1103 temp = constraintExpr_setFileloc (temp, loc);
1104 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1106 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1107 temp = constraintExpr_copy(temp);
1108 temp = constraintExpr_setFileloc (temp, loc);
1109 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1112 temp = constraintExprData_unaryExprGetExpr (c->data);
1113 temp = constraintExpr_copy(temp);
1114 temp = constraintExpr_setFileloc (temp, loc);
1115 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1121 static /*@only@*/ constraintExpr constraintExpr_simplifybinaryExpr (/*@only@*/constraintExpr c)
1123 constraintExpr e1, e2;
1124 constraintExprBinaryOpKind op;
1126 e1 = constraintExprData_binaryExprGetExpr1 (c->data);
1127 e2 = constraintExprData_binaryExprGetExpr2 (c->data);
1129 if (constraintExpr_canGetValue (e1) && constraintExpr_canGetValue(e2) )
1133 i = constraintExpr_getValue(e1) + constraintExpr_getValue (e2);
1134 constraintExpr_free(c);
1135 c = constraintExpr_makeIntLiteral (i);
1139 op = constraintExprData_binaryExprGetOp (c->data);
1141 if (constraintExpr_similar(e1, e2) )
1143 constraintExpr_free(c);
1144 c = constraintExpr_makeIntLiteral (0);
1152 this thing takes the lexpr and expr of a constraint and modifies lexpr
1153 and returns a (possiblly new) value for expr
1155 /* 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 */
1157 /* the approach is a little Kludgy but seems to work. I should probably use something cleaner at some point ... */
1160 /*@only@*/ constraintExpr constraintExpr_solveBinaryExpr (constraintExpr lexpr, /*@only@*/ constraintExpr expr)
1162 constraintExpr expr1, expr2;
1163 constraintExprBinaryOpKind op;
1165 if (lexpr->kind != binaryexpr)
1168 expr2 = constraintExprData_binaryExprGetExpr2 (lexpr->data);
1169 expr1 = constraintExprData_binaryExprGetExpr1 (lexpr->data);
1171 op = constraintExprData_binaryExprGetOp (lexpr->data);
1173 expr1 = constraintExpr_copy(expr1);
1174 expr2 = constraintExpr_copy(expr2);
1176 //drl possible problem : warning make sure this works
1178 lexpr->kind = expr1->kind;
1181 lexpr->data = copyExprData (expr1->data, expr1->kind);
1182 constraintExpr_free(expr1);
1185 expr = constraintExpr_makeSubtractExpr (expr, expr2);
1186 else if (op == MINUS)
1187 expr = constraintExpr_makeAddExpr (expr, expr2);
1195 #warning this needs to be checked
1196 expr = constraintExpr_solveBinaryExpr (expr1, expr);
1198 expr = constraintExpr_solveBinaryExpr (expr2, expr);
1203 static /*@only@*/ constraintExpr constraintExpr_simplifyunaryExpr (/*@only@*/ constraintExpr c)
1207 llassert (c->kind == unaryExpr);
1209 DPRINTF ((message ("Doing constraintExpr_simplifyunaryExpr:%s", constraintExpr_unparse (c) ) ) );
1211 if ( (constraintExprData_unaryExprGetOp (c->data) != MAXSET) &&
1212 (constraintExprData_unaryExprGetOp (c->data) != MAXREAD) )
1216 // pattern mxr ( var + const) = mxr(var) - const
1218 exp = constraintExprData_unaryExprGetExpr (c->data);
1219 exp = constraintExpr_copy(exp);
1221 if (exp->kind == term)
1223 constraintTerm cterm;
1225 cterm = constraintExprData_termGetTerm (exp->data);
1227 if (constraintTerm_isStringLiteral(cterm) )
1230 val = constraintTerm_getStringLiteral (cterm);
1231 if (constraintExprData_unaryExprGetOp (c->data) == MAXSET)
1233 constraintExpr temp;
1235 temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) );
1237 constraintExpr_free(c);
1238 constraintExpr_free(exp);
1243 if (constraintExprData_unaryExprGetOp (c->data) == MAXREAD)
1245 constraintExpr temp;
1247 temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) );
1249 constraintExpr_free(c);
1250 constraintExpr_free(exp);
1257 // slight Kludge to hanlde var [] = { , , };
1258 // type syntax I don't think this is sounds but it should be good
1259 // enough. The C stanrad is very confusing about initialization
1262 if (constraintTerm_isInitBlock(cterm) )
1264 constraintExpr temp;
1267 len = constraintTerm_getInitBlockLength(cterm);
1269 temp = constraintExpr_makeIntLiteral (len );
1271 constraintExpr_free(c);
1272 DPRINTF(( message("Changed too %q", constraintExpr_print(temp)
1274 constraintExpr_free(exp);
1278 constraintExpr_free(exp);
1282 if (exp->kind != binaryexpr)
1284 constraintExpr_free(exp);
1288 if (constraintExprData_binaryExprGetOp (exp->data) == PLUS )
1291 // if (constraintExpr_canGetValue (constraintExprData_binaryExprGetExpr2 (exp->data) ) )
1294 constraintExpr temp, temp2;
1296 DPRINTF ( (message ("Doing fancy simplification") ) );
1298 temp = constraintExprData_binaryExprGetExpr2 (exp->data);
1300 temp2 = constraintExprData_binaryExprGetExpr1 (exp->data);
1302 temp2 = constraintExpr_copy(temp2);
1303 c->data = constraintExprData_unaryExprSetExpr (c->data, temp2);
1306 temp = constraintExpr_copy (temp);
1308 c = constraintExpr_makeSubtractExpr (c, temp);
1310 DPRINTF ( (message ("Done fancy simplification:%s", constraintExpr_unparse (c) ) ) );
1314 DPRINTF ( (message ("constraintExpr_simplifyUnaryExpr: Done simplification:%s", constraintExpr_unparse (c) ) ) );
1316 constraintExpr_free(exp);
1321 /*@only@*/ constraintExpr constraintExpr_simplify (/*@only@*/ constraintExpr c)
1323 constraintExprKind kind;
1327 DPRINTF ( (message ("Doing constraintExpr_simplify:%s", constraintExpr_unparse (c) ) ) );
1332 /*I think this is an LCLint bug */
1334 ret = constraintExpr_copy(c);
1336 constraintExpr_free(c);
1338 ret = constraintExpr_simplifyChildren (ret);
1340 ret = constraintExpr_combineConstants (ret);
1342 ret = constraintExpr_simplifyChildren (ret);
1350 t = constraintExprData_termGetTerm (ret->data);
1351 t = constraintTerm_copy(t);
1352 t = constraintTerm_simplify (t);
1353 ret->data = constraintExprData_termSetTerm (ret->data, t);
1356 ret = constraintExpr_simplifyunaryExpr (ret);
1359 ret = constraintExpr_simplifybinaryExpr (ret);
1365 DPRINTF ( (message ("constraintExpr_simplify returning :%s", constraintExpr_unparse (ret) ) ) );
1371 cstring constraintExpr_unparse (/*@temp@*/ /*@observer@*/ constraintExpr ex) /*@*/
1374 constraintExprKind kind;
1376 llassert (ex != NULL);
1384 if (context_getFlag (FLG_PARENCONSTRAINT) )
1386 st = message ("(%q) ", constraintTerm_print (constraintExprData_termGetTerm (ex->data)));
1390 st = message ("%q", constraintTerm_print (constraintExprData_termGetTerm (ex->data)));
1394 st = message ("%q(%q)",
1395 constraintExprUnaryOpKind_print (constraintExprData_unaryExprGetOp (ex->data) ),
1396 constraintExpr_unparse (constraintExprData_unaryExprGetExpr (ex->data) )
1400 if (context_getFlag (FLG_PARENCONSTRAINT) )
1402 st = message ("(%q) %q (%q)",
1403 constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ),
1404 constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data)
1406 constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) )
1411 st = message ("%q %q %q",
1412 constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ),
1413 constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data)
1415 constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) )
1422 st = message ("error");
1426 DPRINTF((message ("constraintExpr_unparse: '%s'",st) ) );
1430 constraintExpr constraintExpr_doSRefFixBaseParam (/*@returned@*/ constraintExpr expr, exprNodeList arglist)
1432 constraintTerm Term;
1433 constraintExprKind kind;
1434 constraintExpr expr1, expr2;
1435 constraintExprData data;
1436 llassert (expr != NULL);
1445 Term = constraintExprData_termGetTerm(data);
1446 Term = constraintTerm_copy(Term);
1448 Term = constraintTerm_doSRefFixBaseParam (Term, arglist);
1449 data = constraintExprData_termSetTerm(data, Term);
1452 expr1 = constraintExprData_unaryExprGetExpr (data);
1453 expr1 = constraintExpr_copy(expr1);
1455 expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist);
1456 data = constraintExprData_unaryExprSetExpr (data, expr1);
1459 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1460 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1462 expr1 = constraintExpr_copy(expr1);
1463 expr2 = constraintExpr_copy(expr2);
1465 expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist);
1466 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1467 expr2 = constraintExpr_doSRefFixBaseParam (expr2, arglist);
1468 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1478 /*@only@*/ constraintExpr constraintExpr_doSRefFixConstraintParam (/*@only@*/ constraintExpr expr, exprNodeList arglist) /*@modifies expr@*/
1480 constraintExprKind kind;
1481 constraintExpr expr1, expr2;
1482 constraintExprData data;
1483 llassert (expr != NULL);
1492 expr = doSRefFixConstraintParamTerm (expr, arglist);
1495 expr1 = constraintExprData_unaryExprGetExpr (data);
1496 expr1 = constraintExpr_copy(expr1);
1497 expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist);
1498 data = constraintExprData_unaryExprSetExpr (data, expr1);
1501 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1502 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1504 expr1 = constraintExpr_copy(expr1);
1505 expr2 = constraintExpr_copy(expr2);
1507 expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist);
1508 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1509 expr2 = constraintExpr_doSRefFixConstraintParam (expr2, arglist);
1510 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1520 /*@only@*/ constraintExpr constraintExpr_doFixResult (/*@only@*/ constraintExpr expr, /*@observer@*/ exprNode fcnCall)
1522 constraintExprKind kind;
1523 constraintExpr expr1, expr2;
1524 constraintExprData data;
1525 llassert (expr != NULL);
1534 expr = doFixResultTerm (expr, fcnCall);
1537 expr1 = constraintExprData_unaryExprGetExpr (data);
1538 expr1 = constraintExpr_copy(expr1);
1540 expr1 = constraintExpr_doFixResult (expr1, fcnCall);
1541 data = constraintExprData_unaryExprSetExpr (data, expr1);
1544 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1545 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1547 expr1 = constraintExpr_copy(expr1);
1548 expr2 = constraintExpr_copy(expr2);
1550 expr1 = constraintExpr_doFixResult (expr1, fcnCall);
1551 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1552 expr2 = constraintExpr_doFixResult (expr2, fcnCall);
1553 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1563 cstring constraintExpr_print (constraintExpr expr) /*@*/
1565 return constraintExpr_unparse (expr);
1568 bool constraintExpr_hasMaxSet (constraintExpr expr) /*@*/
1572 t = constraintExpr_unparse(expr);
1574 if (cstring_containsLit(t, "maxSet") != NULL )
1588 /*returns 1 0 -1 like strcmp
1594 int constraintExpr_compare (constraintExpr expr1, constraintExpr expr2)
1596 long value1, value2;
1598 if (constraintExpr_similar (expr1, expr2) )
1603 value1 = constraintExpr_getValue(expr1);
1604 value2 = constraintExpr_getValue(expr2);
1606 if (value1 > value2)
1609 if (value1 == value2)
1616 long constraintExpr_getValue (constraintExpr expr)
1618 llassert (expr->kind == term);
1619 return (constraintTerm_getValue (constraintExprData_termGetTerm (expr->data)));
1622 bool constraintExpr_canGetValue (constraintExpr expr)
1627 return constraintTerm_canGetValue (constraintExprData_termGetTerm (expr->data) );
1636 fileloc constraintExpr_getFileloc (constraintExpr expr)
1640 constraintExprKind kind;
1647 t = constraintExprData_termGetTerm (expr->data);
1648 return (constraintTerm_getFileloc (t) );
1652 e = constraintExprData_unaryExprGetExpr (expr->data);
1653 return (constraintExpr_getFileloc (e) );
1657 e = constraintExprData_binaryExprGetExpr1 (expr->data);
1658 return (constraintExpr_getFileloc (e) );
1663 return (fileloc_undefined);
1666 /*drl moved from constriantTerm.c 5/20/001*/
1667 static /*@only@*/ constraintExpr
1668 doFixResultTerm (/*@only@*/ constraintExpr e, /*@exposed@*/ exprNode fcnCall)
1672 /*maybe this should move to cosntraintExpr.c -drl7x 5/18/01*/
1675 constraintExprData data = e->data;
1676 constraintExprKind kind = e->kind;
1680 llassert(kind == term);
1682 t = constraintExprData_termGetTerm (data);
1683 llassert (constraintTerm_isDefined(t) );
1686 switch (constraintTerm_getKind(t) )
1694 s = constraintTerm_getSRef(t);
1695 if (sRef_isResult (s))
1697 ret = constraintExpr_makeExprNode(fcnCall);
1698 constraintExpr_free(e);
1714 /*drl moved from constriantTerm.c 5/20/001*/
1715 /*@only@*/ static constraintExpr
1716 doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr e, /*@observer@*/ /*@temp@*/ exprNodeList arglist)
1720 constraintExprData data = e->data;
1722 constraintExprKind kind = e->kind;
1726 llassert(kind == term);
1728 t = constraintExprData_termGetTerm (data);
1729 llassert (constraintTerm_isDefined(t) );
1733 DPRINTF (("Fixing: %s", constraintExpr_print (e)));
1735 switch (constraintTerm_getKind(t))
1738 DPRINTF((message ("%q @ %q ", constraintTerm_print(t),
1739 fileloc_unparse (constraintTerm_getFileloc(t) ) ) ));
1742 DPRINTF((message (" %q ", constraintTerm_print (t)) ));
1746 /* evans 2001-07-24: constants should use the original term */
1747 if (!constraintTerm_canGetValue (t))
1749 DPRINTF ((message("Doing sRef_fixConstraintParam for %q ",
1750 constraintTerm_print (t) ) ));
1751 ret = sRef_fixConstraintParam (constraintTerm_getSRef(t), arglist);
1753 constraintExpr_free (e);
1755 DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ",
1756 constraintExpr_print (ret) ) ));
1758 } /*@=branchstate@*/
1770 /* bool constraintExpr_includesTerm (constraintExpr expr, constraintTerm term) */
1772 /* if (constraintTerm_hasTerm (expr->term, term) ) */
1775 /* if ( (expr->expr) != NULL) */
1777 /* return ( constraintExpr_includesTerm (expr->expr, term) ); */
1783 /*drl added 6/11/01 */
1784 bool constraintExpr_isBinaryExpr (/*@observer@*/ constraintExpr c)
1786 if (c->kind == binaryexpr)
1793 /*drl added 8/08/001 */
1794 bool constraintExpr_isTerm (/*@observer@*/ constraintExpr c) /*@*/
1796 if (c->kind == term)
1803 /*@observer@*/ /*@temp@*/ constraintTerm constraintExpr_getTerm ( /*@temp@*/ /*@observer@*/ constraintExpr c) /*@*/
1805 constraintTerm term;
1807 llassert(constraintExpr_isTerm(c) );
1809 term = constraintExprData_termGetTerm(c->data);
1814 static void binaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f)
1816 constraintExpr expr1;
1817 constraintExprBinaryOpKind binaryOp;
1818 constraintExpr expr2;
1821 binaryOp = constraintExprData_binaryExprGetOp (data);
1823 fprintf(f, "%d\n", (int) binaryOp);
1825 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1826 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1830 constraintExpr_dump(expr1, f);
1833 constraintExpr_dump(expr2, f);
1837 static constraintExpr binaryExpr_undump (FILE *f)
1839 constraintExpr expr1;
1840 constraintExprBinaryOpKind binaryOp;
1841 constraintExpr expr2;
1850 str = mstring_create (MAX_DUMP_LINE_LENGTH);
1852 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1855 binaryOp = (constraintExprBinaryOpKind) reader_getInt(&str);
1857 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1859 reader_checkChar (&str, 'e');
1860 reader_checkChar (&str, '1');
1862 expr1 = constraintExpr_undump (f);
1864 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1866 reader_checkChar (&str, 'e');
1867 reader_checkChar (&str, '2');
1869 expr2 = constraintExpr_undump (f);
1871 ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2);
1872 ret->data = constraintExprData_binaryExprSetOp(ret->data, binaryOp);
1880 static void unaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f)
1883 constraintExpr expr;
1884 constraintExprUnaryOpKind unaryOp;
1886 unaryOp = constraintExprData_unaryExprGetOp (data);
1888 fprintf(f, "%d\n", (int) unaryOp);
1890 expr = constraintExprData_unaryExprGetExpr (data);
1892 constraintExpr_dump(expr, f);
1895 static constraintExpr unaryExpr_undump ( FILE *f)
1898 constraintExpr expr;
1899 constraintExprUnaryOpKind unaryOp;
1905 str = mstring_create (MAX_DUMP_LINE_LENGTH);
1907 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1909 unaryOp = (constraintExprUnaryOpKind) reader_getInt(&str);
1911 expr = constraintExpr_undump (f);
1913 ret = constraintExpr_makeUnaryOp (expr, unaryOp);
1920 void constraintExpr_dump (/*@observer@*/ constraintExpr expr, FILE *f)
1922 constraintExprKind kind;
1928 fprintf(f,"%d\n", (int) kind);
1933 t = constraintExprData_termGetTerm (expr->data);
1934 constraintTerm_dump (t, f);
1937 unaryExpr_dump (expr->data, f);
1940 binaryExpr_dump (expr->data, f);
1945 /*@only@*/ constraintExpr constraintExpr_undump (FILE *f)
1947 constraintExprKind kind;
1954 s = mstring_create (MAX_DUMP_LINE_LENGTH);
1958 s = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1960 kind = (constraintExprKind) reader_getInt(&s);
1967 t = constraintTerm_undump (f);
1968 ret = constraintExpr_makeTerm(t);
1971 ret = unaryExpr_undump (f);
1974 ret = binaryExpr_undump (f);
1982 int constraintExpr_getDepth (constraintExpr ex)
1986 constraintExprKind kind;
1988 llassert (ex != NULL);
1998 ret = constraintExpr_getDepth (constraintExprData_unaryExprGetExpr (ex->data) );
2004 ret = constraintExpr_getDepth (constraintExprData_binaryExprGetExpr1 (ex->data) );
2008 ret += constraintExpr_getDepth (constraintExprData_binaryExprGetExpr2 (ex->data) );