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 if (!constraintExpr_isBinaryExpr (expr) )
94 e2 = constraintExprData_binaryExprGetExpr2(expr->data);
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) )
132 expr1 = constraintExprData_binaryExprGetExpr1(expr->data);
133 expr2 = constraintExprData_binaryExprGetExpr2(expr->data);
134 op = constraintExprData_binaryExprGetOp(expr->data);
136 llassert( constraintExpr_isBinaryExpr(expr2) );
138 temp = constraintExprData_binaryExprGetExpr2 (expr2->data);
139 temp = constraintExpr_copy (temp);
141 tempOp = constraintExprData_binaryExprGetOp (expr2->data);
145 else if (op == MINUS)
149 else if (tempOp == MINUS)
157 constraintExpr_free(expr2);
161 expr->data = constraintExprData_binaryExprSetExpr2(expr->data, temp);
162 expr->data = constraintExprData_binaryExprSetOp(expr->data, op);
168 /*@only@*/ constraintExpr constraintExpr_propagateConstants (/*@only@*/ constraintExpr expr,
169 /*@out@*/ bool * propagate,
170 /*@out@*/ int *literal)
172 constraintExpr expr1;
173 constraintExpr expr2;
174 bool propagate1, propagate2;
175 int literal1, literal2;
176 constraintExprBinaryOpKind op;
187 llassert (expr != NULL);
189 // we simplify unaryExpr else where
190 if (expr->kind != binaryexpr)
193 op = constraintExprData_binaryExprGetOp (expr->data);
195 DPRINTF( (message("constraintExpr_propagateConstants: binaryexpr: %s", constraintExpr_unparse(expr) ) ) );
197 expr = removeZero(expr);
199 expr1 = constraintExprData_binaryExprGetExpr1(expr->data);
200 expr2 = constraintExprData_binaryExprGetExpr2(expr->data);
202 expr1 = constraintExpr_copy(expr1);
203 expr2 = constraintExpr_copy(expr2);
205 expr1 = constraintExpr_propagateConstants (expr1, &propagate1, &literal1);
206 expr2 = constraintExpr_propagateConstants (expr2, &propagate2, &literal2);
208 *propagate = propagate1 || propagate2;
211 *literal = literal1 + literal2;
212 else if (op == MINUS)
213 *literal = literal1 - literal2;
217 if ( constraintExpr_isLit (expr1) && constraintExpr_isLit (expr2) )
220 t1 = constraintExpr_getValue (expr1);
221 t2 = constraintExpr_getValue (expr2);
222 llassert(*propagate == FALSE);
225 constraintExpr_free (expr);
226 constraintExpr_free (expr1);
227 constraintExpr_free (expr2);
230 return (constraintExpr_makeIntLiteral ( (t1+t2) ));
231 else if (op == MINUS)
232 return (constraintExpr_makeIntLiteral ( (t1-t2) ));
238 if (constraintExpr_isLit (expr1) )
242 *literal += constraintExpr_getValue (expr1);
246 constraintExpr_free(expr1);
247 constraintExpr_free(expr);
250 else if (op == MINUS)
254 /* this is an ugly kludge to deal with not
255 having a unary minus operation...*/
257 temp = constraintExpr_makeIntLiteral (0);
258 temp = constraintExpr_makeSubtractExpr (temp, expr2);
260 constraintExpr_free(expr1);
261 constraintExpr_free(expr);
267 if (constraintExpr_isLit (expr2) )
272 *literal += constraintExpr_getValue (expr2);
273 else if (op == MINUS)
274 *literal -= constraintExpr_getValue (expr2);
279 constraintExpr_free(expr2);
280 constraintExpr_free(expr);
284 DPRINTF( (message("constraintExpr_propagateConstants returning: %s", constraintExpr_unparse(expr) ) ) );
286 expr->data = constraintExprData_binaryExprSetExpr1 (expr->data, expr1);
287 expr->data = constraintExprData_binaryExprSetExpr2 (expr->data, expr2);
289 expr = removeZero(expr);
293 /*@only@*/ static constraintExpr constraintExpr_combineConstants (/*@only@*/ constraintExpr expr ) /*@modifies expr@*/
298 DPRINTF ( (message ("Before combine %s", constraintExpr_unparse(expr) ) ) );
299 expr = constraintExpr_propagateConstants (expr, &propagate, &literal);
308 ret = constraintExpr_makeBinaryOpConstraintExprIntLiteral (expr, literal);
312 DPRINTF ( (message ("After combine %s", constraintExpr_unparse(expr) ) ) );
317 static constraintExpr constraintExpr_alloc (void) /*@post:isnull result->data@*/
320 ret = dmalloc (sizeof (*ret) );
326 /*@only@*/ static constraintExprData copyExprData (/*@observer@*/ constraintExprData data, constraintExprKind kind)
328 constraintExprData ret;
329 llassert(constraintExprData_isDefined(data));
334 ret = constraintExprData_copyBinaryExpr(data);
337 ret = constraintExprData_copyUnaryExpr(data);
340 ret = constraintExprData_copyTerm(data);
348 constraintExpr constraintExpr_copy (constraintExpr expr)
351 ret = constraintExpr_alloc();
352 ret->kind = expr->kind;
354 ret->data = copyExprData (expr->data, expr->kind);
359 /*@only@*/ static constraintExpr oldconstraintExpr_makeTermExprNode ( /*@dependent@*/ exprNode e)
363 ret = constraintExpr_alloc();
365 ret->data = dmalloc (sizeof *(ret->data) );
366 t = constraintTerm_makeExprNode (e);
367 ret->data = constraintExprData_termSetTerm (ret->data, t);
371 constraintExpr constraintExpr_makeExprNode (exprNode e)
374 constraintExpr ret, ce1, ce2;
380 llassert (e != NULL);
387 t = exprData_getSingle (data);
388 s = exprNode_getSref (t);
389 if (sRef_isFixedArray(s) )
393 size = (int) sRef_getArraySize(s);
394 ret = constraintExpr_makeIntLiteral (size);
398 DPRINTF ((message ("could not determine the size of %s", exprNode_unparse (e) ) ) );
399 ret = oldconstraintExpr_makeTermExprNode (e);
404 DPRINTF ((message ("Examining operation %s", exprNode_unparse (e) ) ) );
405 t1 = exprData_getOpA (data);
406 t2 = exprData_getOpB (data);
407 tok = exprData_getOpTok (data);
409 if (lltok_isPlus_Op (tok) || lltok_isMinus_Op (tok) )
411 ce1 = constraintExpr_makeExprNode (t1);
412 ce2 = constraintExpr_makeExprNode (t2);
413 ret = constraintExpr_parseMakeBinaryOp (ce1, tok, ce2);
417 ret = oldconstraintExpr_makeTermExprNode (e);
421 t = exprData_getUopNode (data);
422 ret = constraintExpr_makeExprNode (t);
426 t = exprData_getUopNode (data);
427 tok = exprData_getUopTok (data);
428 if (lltok_isInc_Op (tok) )
431 temp = constraintExpr_makeExprNode(t);
432 ret = constraintExpr_makeIncConstraintExpr(temp);
434 else if (lltok_isDec_Op (tok) )
437 temp = constraintExpr_makeExprNode(t);
438 ret = constraintExpr_makeDecConstraintExpr(temp);
441 ret = oldconstraintExpr_makeTermExprNode (e);
445 t = exprData_getUopNode (data);
446 ret = constraintExpr_makeExprNode (t);
449 t = exprData_getCastNode (data);
450 ret = constraintExpr_makeExprNode (t);
453 t = exprData_getPairA(data);
454 ret = constraintExpr_makeExprNode(t);
455 /*@i3434*/ /*I'm not sure if this is right. I'm adding a break to quite LCLint*/
458 ret = oldconstraintExpr_makeTermExprNode (e);
465 /*@only@*/ constraintExpr constraintExpr_makeTermExprNode (/*@exposed@*/ exprNode e)
467 return oldconstraintExpr_makeTermExprNode(e); //constraintExpr_makeExprNode (e);
470 static constraintExpr constraintExpr_makeTerm (/*@only@*/ constraintTerm t)
474 ret = constraintExpr_alloc();
476 ret->data = dmalloc (sizeof *(ret->data) );
477 ret->data = constraintExprData_termSetTerm (ret->data, t);
482 constraintExpr constraintExpr_makeTermsRef (/*@temp@*/ sRef s)
486 ret = constraintExpr_alloc();
488 ret->data = dmalloc (sizeof *(ret->data) );
489 t = constraintTerm_makesRef (s);
490 ret->data = constraintExprData_termSetTerm (ret->data, t);
494 /*@special@*/ static constraintExpr makeUnaryOpGeneric (void) /*@allocates result->data@*/ /*@defines result->kind@*/
497 ret = constraintExpr_alloc();
498 ret->kind = unaryExpr;
499 ret->data = dmalloc ( sizeof *(ret->data) );
503 /*@only@*/ static constraintExpr constraintExpr_makeUnaryOpConstraintExpr (/*@only@*/ constraintExpr cexpr)
506 ret = makeUnaryOpGeneric();
510 ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr);
511 ret->data = constraintExprData_unaryExprSetOp (ret->data, UNARYOP_UNDEFINED);
520 /*@only@*/ static constraintExpr constraintExpr_makeUnaryOp (/*@only@*/ constraintExpr cexpr, constraintExprUnaryOpKind Op )
523 ret = makeUnaryOpGeneric();
525 ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr);
526 ret->data = constraintExprData_unaryExprSetOp (ret->data, Op);
532 static constraintExpr constraintExpr_makeMaxSetConstraintExpr (/*@only@*/ constraintExpr c)
535 ret = constraintExpr_makeUnaryOp (c, MAXSET);
540 static constraintExpr constraintExpr_makeUnaryOpExprNode (/*@exposed@*/ exprNode expr)
544 sub = constraintExpr_makeExprNode (expr);
545 ret = constraintExpr_makeUnaryOpConstraintExpr(sub);
553 static constraintExpr constraintExpr_makeSRefUnaryOp (/*@temp@*/ /*@observer@*/ sRef s, constraintExprUnaryOpKind op)
558 t = constraintExpr_makeTermsRef (s);
559 ret = constraintExpr_makeUnaryOpConstraintExpr (t);
560 ret->data = constraintExprData_unaryExprSetOp (ret->data, op);
566 constraintExpr constraintExpr_makeSRefMaxRead( sRef s)
568 return (constraintExpr_makeSRefUnaryOp (s, MAXREAD) );
572 constraintExpr constraintExpr_makeSRefMaxset ( sRef s)
574 return (constraintExpr_makeSRefUnaryOp (s, MAXSET) );
578 constraintExpr constraintExpr_parseMakeUnaryOp (lltok op, constraintExpr cexpr)
581 ret = constraintExpr_makeUnaryOpConstraintExpr ( cexpr);
586 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXSET);
589 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD);
592 llfatalbug(message("Unhandled Operation in Constraint") );
598 constraintExpr constraintExpr_makeMaxSetExpr (/*@exposed@*/ exprNode expr)
601 ret = constraintExpr_makeExprNode (expr);
603 ret = constraintExpr_makeMaxSetConstraintExpr (ret);
605 llassert (ret != NULL);
610 constraintExpr constraintExpr_makeMaxReadExpr (exprNode expr)
613 ret = constraintExpr_makeUnaryOpExprNode(expr);
614 ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD);
619 /*@unused@*/ static constraintExpr constraintExpr_makeMinSetExpr (/*@exposed@*/ exprNode expr)
622 ret = constraintExpr_makeUnaryOpExprNode(expr);
623 ret->data = constraintExprData_unaryExprSetOp (ret->data, MINSET);
628 /*@unused@*/ static constraintExpr constraintExpr_makeMinReadExpr (/*@exposed@*/ exprNode expr)
631 ret = constraintExpr_makeUnaryOpExprNode(expr);
632 ret->data = constraintExprData_unaryExprSetOp (ret->data, MINREAD);
638 constraintExpr constraintExpr_makeValueExpr (/*@exposed@*/ exprNode expr)
641 ret = constraintExpr_makeExprNode (expr);
646 constraintExpr constraintExpr_makeIntLiteral (int i)
650 ret = constraintExpr_alloc();
652 ret->data = dmalloc (sizeof *(ret->data) );
653 t = constraintTerm_makeIntLiteral (i);
654 ret->data = constraintExprData_termSetTerm (ret->data, t);
659 constraintExpr constraintExpr_makeValueInt (int i)
661 return constraintExpr_makeIntLiteral (i);
666 /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void)
667 /*@allocates result->data @*/ /*@sets result->kind @*/
670 ret = constraintExpr_alloc();
671 ret->kind = binaryexpr;
672 ret->data = dmalloc ( sizeof *(ret->data) );
673 // ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED);
678 static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExpr (/*@only@*/constraintExpr expr1, /*@only@*/ constraintExpr expr2)
683 ret = constraintExpr_makeBinaryOp();
684 ret->data = constraintExprData_binaryExprSetExpr1 (ret->data, expr1);
685 ret->data = constraintExprData_binaryExprSetExpr2 (ret->data, expr2);
686 ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED);
691 constraintExpr constraintExpr_parseMakeBinaryOp (/*@only@*/ constraintExpr expr1, lltok op,/*@only@*/ constraintExpr expr2)
694 ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2);
696 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
697 else if (op.tok == TMINUS)
698 ret->data = constraintExprData_binaryExprSetOp(ret->data, MINUS);
707 /*@unused@*/ static constraintExpr constraintExpr_makeBinaryOpExprNode (/*@exposed@*/ exprNode expr1, /*@exposed@*/ exprNode expr2)
710 constraintExpr sub1, sub2;
711 sub1 = constraintExpr_makeTermExprNode (expr1);
712 sub2 = constraintExpr_makeTermExprNode (expr2);
713 ret = constraintExpr_makeBinaryOpConstraintExpr(sub1, sub2);
718 constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/ constraintExpr expr, int literal)
721 constraintExpr constExpr;
723 constExpr = constraintExpr_makeIntLiteral (literal);
724 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, constExpr);
725 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
730 constraintExpr constraintExpr_makeDecConstraintExpr (/*@only@*/constraintExpr expr)
735 inc = constraintExpr_makeIntLiteral (1);
736 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc);
737 ret->data = constraintExprData_binaryExprSetOp(ret->data, MINUS);
742 /*@only@*/ constraintExpr constraintExpr_makeSubtractExpr (/*@only@*/ constraintExpr expr, /*@only@*/ constraintExpr addent)
746 DPRINTF ( (message ("Making subtract expression") ) );
748 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent);
749 ret->data = constraintExprData_binaryExprSetOp (ret->data, MINUS);
754 constraintExpr constraintExpr_makeAddExpr (/*@only@*/
755 constraintExpr expr, /*@only@*/
756 constraintExpr addent)
760 DPRINTF ( (message ("Doing addTerm simplification") ) );
762 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent);
763 ret->data = constraintExprData_binaryExprSetOp (ret->data, PLUS);
769 constraintExpr constraintExpr_makeIncConstraintExpr (/*@only@*/ constraintExpr expr)
774 inc = constraintExpr_makeIntLiteral (1);
775 ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc);
776 ret->data = constraintExprData_binaryExprSetOp(ret->data, PLUS);
781 static cstring constraintExprUnaryOpKind_print (constraintExprUnaryOpKind op)
786 return message("MAXSET");
788 return message("MINSET");
790 return message("MAXREAD");
792 return message("MINREAD");
795 return message ("<(Unary OP OTHER>");
801 static cstring constraintExprBinaryOpKind_print (constraintExprBinaryOpKind op)
813 return message ("<binary OP Unknown>");
817 bool constraintExpr_similar (constraintExpr expr1, constraintExpr expr2)
819 constraintExprKind kind;
821 llassert (expr1 != NULL);
822 llassert (expr2 != NULL);
823 if (expr1->kind != expr2->kind)
831 return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data),
832 constraintExprData_termGetTerm(expr2->data) );
833 /*@notreached@*/ break;
836 if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) )
839 return (constraintExpr_similar (
840 constraintExprData_unaryExprGetExpr (expr1->data),
841 constraintExprData_unaryExprGetExpr (expr2->data)
845 if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) )
848 if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr1 (expr1->data),
849 constraintExprData_binaryExprGetExpr1 (expr2->data)) )
852 if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr2 (expr1->data),
853 constraintExprData_binaryExprGetExpr2 (expr2->data)) )
868 bool constraintExpr_same (constraintExpr expr1, constraintExpr expr2)
870 constraintExprKind kind;
872 llassert (expr1 != NULL);
873 llassert (expr2 != NULL);
874 if (expr1->kind != expr2->kind)
882 return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data),
883 constraintExprData_termGetTerm(expr2->data) );
884 /*@notreached@*/ break;
887 if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) )
890 return (constraintExpr_same (
891 constraintExprData_unaryExprGetExpr (expr1->data),
892 constraintExprData_unaryExprGetExpr (expr2->data)
897 if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) )
900 if (! constraintExpr_same (constraintExprData_binaryExprGetExpr1 (expr1->data),
901 constraintExprData_binaryExprGetExpr1 (expr2->data)) )
904 if (! constraintExpr_same (constraintExprData_binaryExprGetExpr2 (expr1->data),
905 constraintExprData_binaryExprGetExpr2 (expr2->data)) )
909 /*@notreached@*/ break;
920 bool constraintExpr_search (/*@observer@*/ constraintExpr c, /*@observer@*/ constraintExpr old)
923 constraintExprKind kind;
926 if ( constraintExpr_similar (c, old) )
928 DPRINTF((message ("Found %q",
929 constraintExpr_unparse(old)
941 temp = constraintExprData_unaryExprGetExpr (c->data);
942 ret = ret || constraintExpr_search (temp, old);
946 temp = constraintExprData_binaryExprGetExpr1 (c->data);
947 ret = ret || constraintExpr_search(temp, old);
949 temp = constraintExprData_binaryExprGetExpr2 (c->data);
950 ret = ret || constraintExpr_search(temp, old);
960 /*@only@*/ constraintExpr constraintExpr_searchandreplace (/*@only@*/ /*@unique@*/ constraintExpr c, /*@temp@*/ constraintExpr old, /*@temp@*/ constraintExpr newExpr )
962 constraintExprKind kind;
965 if ( constraintExpr_similar (c, old) )
968 DPRINTF((message ("Replacing %s with %s",
969 constraintExpr_unparse(old), constraintExpr_unparse(newExpr)
971 constraintExpr_free(c);
972 return constraintExpr_copy (newExpr);
982 temp = constraintExprData_unaryExprGetExpr (c->data);
983 temp = constraintExpr_copy(temp);
984 temp = constraintExpr_searchandreplace (temp, old, newExpr);
985 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
989 temp = constraintExprData_binaryExprGetExpr1 (c->data);
990 temp = constraintExpr_copy(temp);
991 temp = constraintExpr_searchandreplace (temp, old, newExpr);
992 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
994 temp = constraintExprData_binaryExprGetExpr2 (c->data);
995 temp = constraintExpr_copy(temp);
996 temp = constraintExpr_searchandreplace (temp, old, newExpr);
997 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1006 static constraintExpr constraintExpr_simplifyChildren (/*@returned@*/ constraintExpr c)
1008 constraintExprKind kind;
1009 constraintExpr temp;
1018 temp = constraintExprData_unaryExprGetExpr (c->data);
1019 temp = constraintExpr_copy(temp);
1020 temp = constraintExpr_simplify (temp);
1021 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1024 DPRINTF((message("constraintExpr_simplfiyChildren: simplify binary expression: %s",constraintExpr_unparse(c) ) ) );
1025 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1026 temp = constraintExpr_copy(temp);
1027 temp = constraintExpr_simplify (temp);
1029 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1031 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1032 temp = constraintExpr_copy(temp);
1033 temp = constraintExpr_simplify (temp);
1035 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1045 constraintExpr constraintExpr_setFileloc (/*@returned@*/ constraintExpr c, fileloc loc) /*@modifies c @*/
1048 constraintExpr temp;
1050 llassert(c != NULL);
1055 t = constraintExprData_termGetTerm (c->data);
1056 t = constraintTerm_copy(t);
1057 t = constraintTerm_setFileloc (t, loc);
1058 c->data = constraintExprData_termSetTerm (c->data, t);
1062 temp = constraintExprData_binaryExprGetExpr1 (c->data);
1063 temp = constraintExpr_copy(temp);
1064 temp = constraintExpr_setFileloc (temp, loc);
1065 c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp);
1067 temp = constraintExprData_binaryExprGetExpr2 (c->data);
1068 temp = constraintExpr_copy(temp);
1069 temp = constraintExpr_setFileloc (temp, loc);
1070 c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp);
1073 temp = constraintExprData_unaryExprGetExpr (c->data);
1074 temp = constraintExpr_copy(temp);
1075 temp = constraintExpr_setFileloc (temp, loc);
1076 c->data = constraintExprData_unaryExprSetExpr (c->data, temp);
1082 static /*@only@*/ constraintExpr constraintExpr_simplifybinaryExpr (/*@only@*/constraintExpr c)
1084 constraintExpr e1, e2;
1085 constraintExprBinaryOpKind op;
1087 e1 = constraintExprData_binaryExprGetExpr1 (c->data);
1088 e2 = constraintExprData_binaryExprGetExpr2 (c->data);
1090 if (constraintExpr_canGetValue (e1) && constraintExpr_canGetValue(e2) )
1094 i = constraintExpr_getValue(e1) + constraintExpr_getValue (e2);
1095 constraintExpr_free(c);
1096 c = constraintExpr_makeIntLiteral (i);
1100 op = constraintExprData_binaryExprGetOp (c->data);
1102 if (constraintExpr_similar(e1, e2) )
1104 constraintExpr_free(c);
1105 c = constraintExpr_makeIntLiteral (0);
1113 this thing takes the lexpr and expr of a constraint and modifies lexpr
1114 and returns a (possiblly new) value for expr
1116 /* 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 */
1118 /* the approach is a little Kludgy but seems to work. I should probably use something cleaner at some point ... */
1121 /*@only@*/ constraintExpr constraintExpr_solveBinaryExpr (constraintExpr lexpr, /*@only@*/ constraintExpr expr)
1123 constraintExpr expr1, expr2;
1124 constraintExprBinaryOpKind op;
1126 if (lexpr->kind != binaryexpr)
1129 expr2 = constraintExprData_binaryExprGetExpr2 (lexpr->data);
1130 expr1 = constraintExprData_binaryExprGetExpr1 (lexpr->data);
1132 op = constraintExprData_binaryExprGetOp (lexpr->data);
1134 expr1 = constraintExpr_copy(expr1);
1135 expr2 = constraintExpr_copy(expr2);
1137 //drl possible problem : warning make sure this works
1139 lexpr->kind = expr1->kind;
1142 lexpr->data = copyExprData (expr1->data, expr1->kind);
1143 constraintExpr_free(expr1);
1146 expr = constraintExpr_makeSubtractExpr (expr, expr2);
1147 else if (op == MINUS)
1148 expr = constraintExpr_makeAddExpr (expr, expr2);
1156 #warning this needs to be checked
1157 expr = constraintExpr_solveBinaryExpr (expr1, expr);
1159 expr = constraintExpr_solveBinaryExpr (expr2, expr);
1164 static /*@only@*/ constraintExpr constraintExpr_simplifyunaryExpr (/*@only@*/ constraintExpr c)
1168 llassert (c->kind == unaryExpr);
1170 DPRINTF ( (message ("Doing constraintExpr_simplifyunaryExpr:%s", constraintExpr_unparse (c) ) ) );
1172 if ( (constraintExprData_unaryExprGetOp (c->data) != MAXSET) &&
1173 (constraintExprData_unaryExprGetOp (c->data) != MAXREAD) )
1177 // pattern mxr ( var + const) = mxr(var) - const
1179 exp = constraintExprData_unaryExprGetExpr (c->data);
1181 if (exp->kind == term)
1183 constraintTerm cterm;
1185 cterm = constraintExprData_termGetTerm (exp->data);
1187 if (constraintTerm_isStringLiteral(cterm) )
1190 val = constraintTerm_getStringLiteral (cterm);
1191 if (constraintExprData_unaryExprGetOp (c->data) == MAXSET)
1193 constraintExpr temp;
1195 temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) );
1197 constraintExpr_free(c);
1200 if (constraintExprData_unaryExprGetOp (c->data) == MAXREAD)
1202 constraintExpr temp;
1204 temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) );
1206 constraintExpr_free(c);
1214 if (exp->kind != binaryexpr)
1217 if (constraintExprData_binaryExprGetOp (exp->data) == PLUS )
1220 // if (constraintExpr_canGetValue (constraintExprData_binaryExprGetExpr2 (exp->data) ) )
1223 constraintExpr temp, temp2;
1225 DPRINTF ( (message ("Doing fancy simplification") ) );
1227 temp = constraintExprData_binaryExprGetExpr2 (exp->data);
1229 temp2 = constraintExprData_binaryExprGetExpr1 (exp->data);
1231 temp2 = constraintExpr_copy(temp2);
1232 c->data = constraintExprData_unaryExprSetExpr (c->data, temp2);
1235 temp = constraintExpr_copy (temp);
1237 c = constraintExpr_makeSubtractExpr (c, temp);
1239 DPRINTF ( (message ("Done fancy simplification:%s", constraintExpr_unparse (c) ) ) );
1243 DPRINTF ( (message ("Done simplification:%s", constraintExpr_unparse (c) ) ) );
1248 /*@only@*/ constraintExpr constraintExpr_simplify (/*@only@*/ constraintExpr c)
1250 constraintExprKind kind;
1254 DPRINTF ( (message ("Doing constraintExpr_simplify:%s", constraintExpr_unparse (c) ) ) );
1259 /*I think this is an LCLint bug */
1261 ret = constraintExpr_copy(c);
1263 constraintExpr_free(c);
1265 ret = constraintExpr_simplifyChildren (ret);
1267 ret = constraintExpr_combineConstants (ret);
1269 ret = constraintExpr_simplifyChildren (ret);
1277 t = constraintExprData_termGetTerm (ret->data);
1278 t = constraintTerm_copy(t);
1279 t = constraintTerm_simplify (t);
1280 ret->data = constraintExprData_termSetTerm (ret->data, t);
1283 ret = constraintExpr_simplifyunaryExpr (ret);
1286 ret = constraintExpr_simplifybinaryExpr (ret);
1292 DPRINTF ( (message ("constraintExpr_simplify returning :%s", constraintExpr_unparse (ret) ) ) );
1298 cstring constraintExpr_unparse (/*@temp@*/ /*@observer@*/ constraintExpr ex) /*@*/
1301 constraintExprKind kind;
1303 llassert (ex != NULL);
1310 st = message ("(%q) ", constraintTerm_print (constraintExprData_termGetTerm(ex->data) ) );
1313 st = message ("%q (%q)",
1314 constraintExprUnaryOpKind_print (constraintExprData_unaryExprGetOp (ex->data)
1316 constraintExpr_unparse (constraintExprData_unaryExprGetExpr (ex->data) )
1320 st = message ("(%q) %q (%q)",
1321 constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ),
1322 constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data)
1324 constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) )
1329 st = message ("error");
1333 DPRINTF((message ("constraintExpr_unparse: '%s'",st) ) );
1337 constraintExpr constraintExpr_doSRefFixBaseParam (/*@returned@*/ constraintExpr expr, exprNodeList arglist)
1339 constraintTerm Term;
1340 constraintExprKind kind;
1341 constraintExpr expr1, expr2;
1342 constraintExprData data;
1343 llassert (expr != NULL);
1352 Term = constraintExprData_termGetTerm(data);
1353 Term = constraintTerm_copy(Term);
1355 Term = constraintTerm_doSRefFixBaseParam (Term, arglist);
1356 data = constraintExprData_termSetTerm(data, Term);
1359 expr1 = constraintExprData_unaryExprGetExpr (data);
1360 expr1 = constraintExpr_copy(expr1);
1362 expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist);
1363 data = constraintExprData_unaryExprSetExpr (data, expr1);
1366 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1367 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1369 expr1 = constraintExpr_copy(expr1);
1370 expr2 = constraintExpr_copy(expr2);
1372 expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist);
1373 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1374 expr2 = constraintExpr_doSRefFixBaseParam (expr2, arglist);
1375 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1385 /*@only@*/ constraintExpr constraintExpr_doSRefFixConstraintParam (/*@only@*/ constraintExpr expr, exprNodeList arglist) /*@modifies expr@*/
1387 constraintExprKind kind;
1388 constraintExpr expr1, expr2;
1389 constraintExprData data;
1390 llassert (expr != NULL);
1399 expr = doSRefFixConstraintParamTerm (expr, arglist);
1402 expr1 = constraintExprData_unaryExprGetExpr (data);
1403 expr1 = constraintExpr_copy(expr1);
1404 expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist);
1405 data = constraintExprData_unaryExprSetExpr (data, expr1);
1408 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1409 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1411 expr1 = constraintExpr_copy(expr1);
1412 expr2 = constraintExpr_copy(expr2);
1414 expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist);
1415 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1416 expr2 = constraintExpr_doSRefFixConstraintParam (expr2, arglist);
1417 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1427 /*@only@*/ constraintExpr constraintExpr_doFixResult (/*@only@*/ constraintExpr expr, /*@observer@*/ exprNode fcnCall)
1429 constraintExprKind kind;
1430 constraintExpr expr1, expr2;
1431 constraintExprData data;
1432 llassert (expr != NULL);
1441 expr = doFixResultTerm (expr, fcnCall);
1444 expr1 = constraintExprData_unaryExprGetExpr (data);
1445 expr1 = constraintExpr_copy(expr1);
1447 expr1 = constraintExpr_doFixResult (expr1, fcnCall);
1448 data = constraintExprData_unaryExprSetExpr (data, expr1);
1451 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1452 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1454 expr1 = constraintExpr_copy(expr1);
1455 expr2 = constraintExpr_copy(expr2);
1457 expr1 = constraintExpr_doFixResult (expr1, fcnCall);
1458 data = constraintExprData_binaryExprSetExpr1 (data, expr1);
1459 expr2 = constraintExpr_doFixResult (expr2, fcnCall);
1460 data = constraintExprData_binaryExprSetExpr2 (data, expr2);
1470 cstring constraintExpr_print (constraintExpr expr) /*@*/
1472 return constraintExpr_unparse(expr);
1475 bool constraintExpr_hasMaxSet (constraintExpr expr) /*@*/
1479 t = constraintExpr_unparse(expr);
1481 if (cstring_containsLit(t, "MAXSET") != NULL )
1495 /*returns 1 0 -1 like strcmp
1500 int constraintExpr_compare (constraintExpr expr1, constraintExpr expr2)
1504 if (constraintExpr_similar (expr1, expr2) )
1508 value1 = constraintExpr_getValue(expr1);
1509 value2 = constraintExpr_getValue(expr2);
1511 if (value1 > value2)
1514 if (value1 == value2)
1521 int constraintExpr_getValue (constraintExpr expr)
1523 llassert (expr->kind == term);
1524 return (constraintTerm_getValue (constraintExprData_termGetTerm (expr->data) ) );
1527 bool constraintExpr_canGetValue (constraintExpr expr)
1532 return constraintTerm_canGetValue (constraintExprData_termGetTerm (expr->data) );
1541 fileloc constraintExpr_getFileloc (constraintExpr expr)
1545 constraintExprKind kind;
1552 t = constraintExprData_termGetTerm (expr->data);
1553 return (constraintTerm_getFileloc (t) );
1557 e = constraintExprData_unaryExprGetExpr (expr->data);
1558 return (constraintExpr_getFileloc (e) );
1562 e = constraintExprData_binaryExprGetExpr1 (expr->data);
1563 return (constraintExpr_getFileloc (e) );
1568 return (fileloc_undefined);
1571 /*drl moved from constriantTerm.c 5/20/001*/
1572 static /*@only@*/ constraintExpr
1573 doFixResultTerm (/*@only@*/ constraintExpr e, /*@exposed@*/ exprNode fcnCall)
1577 /*maybe this should move to cosntraintExpr.c -drl7x 5/18/01*/
1578 /*@i22*/ constraintExprData data = e->data;
1580 /*@i22*/constraintExprKind kind = e->kind;
1584 llassert(kind == term);
1586 t = constraintExprData_termGetTerm (data);
1587 llassert (constraintTerm_isDefined(t) );
1590 switch (constraintTerm_getKind(t) )
1598 s = constraintTerm_getSRef(t);
1599 if (sRef_isResult (s))
1601 ret = constraintExpr_makeExprNode(fcnCall);
1602 constraintExpr_free(e);
1618 /*drl moved from constriantTerm.c 5/20/001*/
1619 /*@only@*/ static constraintExpr
1620 doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr e, /*@observer@*/ /*@temp@*/ exprNodeList arglist)
1624 constraintExprData data = e->data;
1626 constraintExprKind kind = e->kind;
1630 llassert(kind == term);
1632 t = constraintExprData_termGetTerm (data);
1633 llassert (constraintTerm_isDefined(t) );
1636 /*@i1*/ switch (t->kind)
1639 DPRINTF((message ("%q @ %q ", constraintTerm_print(t),
1640 fileloc_unparse (constraintTerm_getFileloc(t) ) ) ));
1643 DPRINTF((message (" %q ", constraintTerm_print (t)) ));
1647 DPRINTF (( message("Doing sRef_fixConstraintParam for %q ",
1648 constraintTerm_print (t) ) ));
1649 ret = sRef_fixConstraintParam (constraintTerm_getSRef(t), arglist);
1651 constraintExpr_free(e);
1653 DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ",
1654 constraintExpr_print (ret) ) ));
1664 /* bool constraintExpr_includesTerm (constraintExpr expr, constraintTerm term) */
1666 /* if (constraintTerm_hasTerm (expr->term, term) ) */
1669 /* if ( (expr->expr) != NULL) */
1671 /* return ( constraintExpr_includesTerm (expr->expr, term) ); */
1677 /*drl added 6/11/01 */
1678 bool constraintExpr_isBinaryExpr (/*@observer@*/ constraintExpr c)
1680 if (c->kind == binaryexpr)
1687 static void binaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f)
1689 constraintExpr expr1;
1690 constraintExprBinaryOpKind binaryOp;
1691 constraintExpr expr2;
1694 binaryOp = constraintExprData_binaryExprGetOp (data);
1696 fprintf(f, "%d\n", (int) binaryOp);
1698 expr1 = constraintExprData_binaryExprGetExpr1 (data);
1699 expr2 = constraintExprData_binaryExprGetExpr2 (data);
1703 constraintExpr_dump(expr1, f);
1706 constraintExpr_dump(expr2, f);
1710 static constraintExpr binaryExpr_undump (FILE *f)
1712 constraintExpr expr1;
1713 constraintExprBinaryOpKind binaryOp;
1714 constraintExpr expr2;
1723 str = mstring_create (MAX_DUMP_LINE_LENGTH);
1725 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1728 binaryOp = (constraintExprBinaryOpKind) reader_getInt(&str);
1730 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1732 reader_checkChar (&str, 'e');
1733 reader_checkChar (&str, '1');
1735 expr1 = constraintExpr_undump (f);
1737 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1739 reader_checkChar (&str, 'e');
1740 reader_checkChar (&str, '2');
1742 expr2 = constraintExpr_undump (f);
1744 ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2);
1745 ret->data = constraintExprData_binaryExprSetOp(ret->data, binaryOp);
1753 static void unaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f)
1756 constraintExpr expr;
1757 constraintExprUnaryOpKind unaryOp;
1759 unaryOp = constraintExprData_unaryExprGetOp (data);
1761 fprintf(f, "%d\n", (int) unaryOp);
1763 expr = constraintExprData_unaryExprGetExpr (data);
1765 constraintExpr_dump(expr, f);
1768 static constraintExpr unaryExpr_undump ( FILE *f)
1771 constraintExpr expr;
1772 constraintExprUnaryOpKind unaryOp;
1778 str = mstring_create (MAX_DUMP_LINE_LENGTH);
1780 str = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1782 unaryOp = (constraintExprUnaryOpKind) reader_getInt(&str);
1784 expr = constraintExpr_undump (f);
1786 ret = constraintExpr_makeUnaryOp (expr, unaryOp);
1793 void constraintExpr_dump (/*@observer@*/ constraintExpr expr, FILE *f)
1795 constraintExprKind kind;
1801 fprintf(f,"%d\n", (int) kind);
1806 t = constraintExprData_termGetTerm (expr->data);
1807 constraintTerm_dump (t, f);
1810 unaryExpr_dump (expr->data, f);
1813 binaryExpr_dump (expr->data, f);
1818 /*@only@*/ constraintExpr constraintExpr_undump (FILE *f)
1820 constraintExprKind kind;
1827 s = mstring_create (MAX_DUMP_LINE_LENGTH);
1831 s = fgets(os, MAX_DUMP_LINE_LENGTH, f);
1833 kind = (constraintExprKind) reader_getInt(&s);
1840 t = constraintTerm_undump (f);
1841 ret = constraintExpr_makeTerm(t);
1844 ret = unaryExpr_undump (f);
1847 ret = binaryExpr_undump (f);