3 ** constraintGeneration.c
8 # include <ctype.h> /* for isdigit */
9 # include "lclintMacros.nf"
11 # include "cgrammar.h"
12 # include "cgrammar_tokens.h"
14 # include "exprChecks.h"
15 # include "aliasChecks.h"
16 # include "exprNodeSList.h"
18 # include "exprData.i"
19 # include "exprDataQuite.i"
21 bool /*@alt void@*/ exprNode_generateConstraints (/*@temp@*/ exprNode e);
22 static bool exprNode_handleError( exprNode p_e);
24 //static cstring exprNode_findConstraints ( exprNode p_e);
25 static bool exprNode_isMultiStatement(exprNode p_e);
26 static bool exprNode_multiStatement (exprNode p_e);
27 bool exprNode_exprTraverse (exprNode e, bool definatelv, bool definaterv, fileloc sequencePoint);
28 //static void exprNode_constraintPropagateUp (exprNode p_e);
29 constraintList exprNode_traversRequiresConstraints (exprNode e);
30 constraintList exprNode_traversEnsuresConstraints (exprNode e);
32 constraintList exprNode_traversTrueEnsuresConstraints (exprNode e);
33 constraintList exprNode_traversFalseEnsuresConstraints (exprNode e);
35 extern constraintList reflectChanges (constraintList pre2, constraintList post1);
37 void mergeResolve (exprNode parent, exprNode child1, exprNode child2);
38 exprNode makeDataTypeConstraints (exprNode e);
39 constraintList constraintList_makeFixedArrayConstraints (sRefSet s);
40 constraintList checkCall (exprNode fcn, exprNodeList arglist);
42 void checkArgumentList (exprNode temp, exprNodeList arglist, fileloc sequencePoint);
44 //bool exprNode_testd()
46 /* if ( ( (exprNode_isError ) ) )
55 bool exprNode_isUnhandled (exprNode e)
57 llassert( exprNode_isDefined(e) );
86 DPRINTF((message ("Warning current constraint generation does not handle expression %s", exprNode_unparse(e)) ) );
98 bool exprNode_handleError( exprNode e)
100 if (exprNode_isError (e) || exprNode_isUnhandled(e) )
102 static /*@only@*/ cstring error = cstring_undefined;
104 if (!cstring_isDefined (error))
106 error = cstring_makeLiteral ("<error>");
109 /*@-unqualifiedtrans*/ return TRUE; /*@=unqualifiedtrans*/
114 bool /*@alt void@*/ exprNode_generateConstraints (/*@temp@*/ exprNode e)
116 if (exprNode_isError (e) )
119 e->requiresConstraints = constraintList_new();
120 e->ensuresConstraints = constraintList_new();
121 e->trueEnsuresConstraints = constraintList_new();
122 e->falseEnsuresConstraints = constraintList_new();
124 if (exprNode_isUnhandled (e) )
126 DPRINTF( (message("Warning ignoring %s", exprNode_unparse (e) ) ) );
131 // e = makeDataTypeConstraints (e);
133 DPRINTF((message ("exprNode_generateConstraints Analysising %s at %s", exprNode_unparse( e),
134 fileloc_unparse(exprNode_getfileloc(e) ) ) ) );
136 if (exprNode_isMultiStatement ( e) )
138 exprNode_multiStatement(e);
144 loc = exprNode_getNextSequencePoint(e);
145 exprNode_exprTraverse(e, FALSE, FALSE, loc);
154 c = constraintList_makeFixedArrayConstraints (e->uses);
155 e->requiresConstraints = reflectChanges (e->requiresConstraints, c);
157 // e->ensuresConstraints = constraintList_mergeEnsures(c, e->ensuresConstraints);
161 /* printf ("%s", (message ("%s", constraintList_printDetailed (e->requiresConstraints) ) ) );
162 printf ("%s", (message ("%s", constraintList_printDetailed (e->ensuresConstraints) ) ) ); */
167 /* handles multiple statements */
169 bool exprNode_isMultiStatement(exprNode e)
171 if (exprNode_handleError (e) != NULL)
193 bool exprNode_stmt (exprNode e)
200 if (exprNode_isError(e) )
204 e->requiresConstraints = constraintList_new();
205 e->ensuresConstraints = constraintList_new();
206 // e = makeDataTypeConstraints(e);
209 DPRINTF(( "STMT:") );
210 s = exprNode_unparse(e);
211 // DPRINTF ( ( message("STMT: %s ") ) );
213 if (e->kind == XPR_INIT)
216 DPRINTF ( (message ("%s ", exprNode_unparse (e)) ) );
217 loc = exprNode_getNextSequencePoint(e); /* reduces to an expression */
218 notError = exprNode_exprTraverse (e, FALSE, FALSE, loc);
219 e->requiresConstraints = exprNode_traversRequiresConstraints(e);
220 e->ensuresConstraints = exprNode_traversEnsuresConstraints(e);
224 if (e->kind != XPR_STMT)
227 DPRINTF (("Not Stmt") );
228 DPRINTF ( (message ("%s ", exprNode_unparse (e)) ) );
229 if (exprNode_isMultiStatement (e) )
231 return exprNode_multiStatement (e );
233 BPRINTF( (message ("Ignoring non-statement %s", exprNode_unparse(e) ) ) );
239 DPRINTF ( (message ("%s ", exprNode_unparse (e)) ) );
241 snode = exprData_getUopNode (e->edata);
243 /* could be stmt involving multiple statements:
244 i.e. if, while for ect.
247 if (exprNode_isMultiStatement (snode))
250 return exprNode_multiStatement (snode);
253 loc = exprNode_getNextSequencePoint(e); /* reduces to an expression */
254 notError = exprNode_exprTraverse (snode, FALSE, FALSE, loc);
255 e->requiresConstraints = exprNode_traversRequiresConstraints(snode);
256 // printf ("For: %s \n", exprNode_unparse (e) );
257 // printf ("%s\n", constraintList_print(e->requiresConstraints) );
258 e->ensuresConstraints = exprNode_traversEnsuresConstraints(snode);
259 // printf ("Ensures that:\n %s\n", constraintList_print(e->ensuresConstraints) );
260 // llassert(notError);
266 bool exprNode_stmtList (exprNode e)
268 exprNode stmt1, stmt2;
269 if (exprNode_isError (e) )
274 e->requiresConstraints = constraintList_new();
275 e->ensuresConstraints = constraintList_new();
276 // e = makeDataTypeConstraints(e);
278 /*Handle case of stmtList with only one statement:
279 The parse tree stores this as stmt instead of stmtList*/
280 if (e->kind != XPR_STMTLIST)
282 return exprNode_stmt(e);
284 llassert (e->kind == XPR_STMTLIST);
285 DPRINTF(( "STMTLIST:") );
286 DPRINTF ((cstring_toCharsSafe (exprNode_unparse(e)) ) );
287 stmt1 = exprData_getPairA (e->edata);
288 stmt2 = exprData_getPairB (e->edata);
291 DPRINTF((" stmtlist ") );
292 DPRINTF ((message("XW%s | %s", exprNode_unparse(stmt1), exprNode_unparse(stmt2) ) ) );
294 exprNode_stmt (stmt1);
295 DPRINTF(("\nstmt after stmtList call " ));
297 exprNode_stmt (stmt2);
298 mergeResolve (e, stmt1, stmt2 );
300 DPRINTF ( (message ("smtlist constraints are: pre: %s \n and \t post %s\n",
301 constraintList_print(e->requiresConstraints),
302 constraintList_print(e->ensuresConstraints) ) ) );
307 exprNode doIf (exprNode e, exprNode test, exprNode body)
309 DPRINTF ((message ("doIf: %s ", exprNode_unparse(e) ) ) );
311 test->ensuresConstraints = exprNode_traversEnsuresConstraints (test);
312 test->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(test);
314 e->requiresConstraints = reflectChanges (body->requiresConstraints, test->trueEnsuresConstraints);
315 e->requiresConstraints = reflectChanges (e->requiresConstraints,
316 test->ensuresConstraints);
317 e->requiresConstraints = constraintList_addList(e->requiresConstraints, test->requiresConstraints);
319 e->ensuresConstraints = constraintList_copy (test->ensuresConstraints);
321 DPRINTF ((message ("doIf: if requiers %s ", constraintList_print(e->requiresConstraints) ) ) );
327 exprNode doWhile (exprNode e, exprNode test, exprNode body)
329 DPRINTF ((message ("doWhile: %s ", exprNode_unparse(e) ) ) );
330 return doIf (e, test, body);
333 constraintList constraintList_makeFixedArrayConstraints (sRefSet s)
336 ret = constraintList_new();
338 sRefSet_elements (s, el)
341 if (sRef_isFixedArray(el) )
345 s = sRef_getArraySize(el);
346 DPRINTF( (message("%s is a fixed array with size %d",
347 sRef_unparse(el), s) ) );
348 con = constraint_makeSRefSetBufferSize (el, (s - 1));
349 //con = constraint_makeSRefWriteSafeInt (el, (s - 1));
350 ret = constraintList_add(ret, con);
354 DPRINTF( (message("%s is not a fixed array",
355 sRef_unparse(el)) ) );
363 exprNode makeDataTypeConstraints (exprNode e)
366 DPRINTF(("makeDataTypeConstraints"));
368 c = constraintList_makeFixedArrayConstraints (e->uses);
370 e->ensuresConstraints = constraintList_addList (e->ensuresConstraints, c);
375 void doFor (exprNode e, exprNode forPred, exprNode forBody)
377 exprNode init, test, inc;
378 //merge the constraints: modle as if statement
383 init = exprData_getTripleInit (forPred->edata);
384 test = exprData_getTripleTest (forPred->edata);
385 inc = exprData_getTripleInc (forPred->edata);
387 if ( ( (exprNode_isError (test) /*|| (exprNode_isError(init) )*/ ) || (exprNode_isError (inc) ) ) )
389 DPRINTF ((message ("strange for statement:%s, ignoring it", exprNode_unparse(e) ) ) );
393 forLoopHeuristics(e, forPred, forBody);
395 e->requiresConstraints = reflectChanges (forBody->requiresConstraints, test->ensuresConstraints);
396 e->requiresConstraints = reflectChanges (e->requiresConstraints, test->trueEnsuresConstraints);
397 e->requiresConstraints = reflectChanges (e->requiresConstraints, forPred->ensuresConstraints);
399 if (!forBody->canBreak)
401 e->ensuresConstraints = constraintList_addList(e->ensuresConstraints, forPred->ensuresConstraints);
402 e->ensuresConstraints = constraintList_addList(e->ensuresConstraints, test->falseEnsuresConstraints);
406 DPRINTF(("Can break") );
413 bool exprNode_multiStatement (exprNode e)
419 exprNode p, trueBranch, falseBranch;
420 exprNode forPred, forBody;
421 exprNode init, test, inc;
424 e->requiresConstraints = constraintList_new();
425 e->ensuresConstraints = constraintList_new();
426 e->trueEnsuresConstraints = constraintList_new();
427 e->falseEnsuresConstraints = constraintList_new();
429 // e = makeDataTypeConstraints(e);
431 DPRINTF((message ("exprNode_multistatement Analysising %s %s at", exprNode_unparse( e),
432 fileloc_unparse(exprNode_getfileloc(e) ) ) ) );
434 if (exprNode_handleError (e))
447 // ret = message ("%s %s",
448 forPred = exprData_getPairA (data);
449 forBody = exprData_getPairB (data);
451 //first generate the constraints
452 exprNode_generateConstraints (forPred);
453 exprNode_generateConstraints (forBody);
456 doFor (e, forPred, forBody);
461 // ret = message ("for (%s; %s; %s)",
462 exprNode_generateConstraints (exprData_getTripleInit (data) );
463 test = exprData_getTripleTest (data);
464 exprNode_exprTraverse (test,FALSE, FALSE, exprNode_loc(e));
465 exprNode_generateConstraints (exprData_getTripleInc (data) );
467 if (!exprNode_isError(test) )
468 test->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(test);
470 exprNode_generateConstraints (exprData_getTripleInc (data));
474 e1 = exprData_getPairA (data);
475 e2 = exprData_getPairB (data);
477 exprNode_exprTraverse (e1,
478 FALSE, FALSE, exprNode_loc(e1));
480 exprNode_generateConstraints (e2);
482 e = doWhile (e, e1, e2);
488 DPRINTF ((exprNode_unparse(e) ) );
489 // ret = message ("if (%s) %s",
490 e1 = exprData_getPairA (data);
491 e2 = exprData_getPairB (data);
493 exprNode_exprTraverse (e1,
494 FALSE, FALSE, exprNode_loc(e1));
496 exprNode_generateConstraints (e2);
498 e = doIf (e, e1, e2);
501 // e->constraints = constraintList_exprNodemerge (exprData_getPairA (data),exprData_getPairB(data));
506 DPRINTF(("Starting IFELSE"));
507 // ret = message ("if (%s) %s else %s",
508 p = exprData_getTriplePred (data);
509 trueBranch = exprData_getTripleTrue (data);
510 falseBranch = exprData_getTripleFalse (data);
512 exprNode_exprTraverse (p,
513 FALSE, FALSE, exprNode_loc(p));
514 exprNode_generateConstraints (trueBranch);
515 exprNode_generateConstraints (falseBranch);
517 p->ensuresConstraints = exprNode_traversEnsuresConstraints (p);
518 p->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(p);
519 // p->falseEnsuresConstraints = exprNode_traversFalseEnsuresConstraints(p);
521 // do requires clauses
524 constraintList c1, c2;
525 c1 = constraintList_copy (p->ensuresConstraints);
527 cons = reflectChanges (trueBranch->requiresConstraints, p->trueEnsuresConstraints);
528 cons = reflectChanges (cons,
529 p->ensuresConstraints);
530 e->requiresConstraints = constraintList_copy (cons);
532 cons = reflectChanges (falseBranch->requiresConstraints, p->falseEnsuresConstraints);
533 cons = reflectChanges (cons,
535 e->requiresConstraints = constraintList_addList (e->requiresConstraints,
537 e->requiresConstraints = constraintList_addList (e->requiresConstraints,
538 p->requiresConstraints);
542 // do ensures clauses
543 // find the the ensures lists for each subbranch
544 t = constraintList_mergeEnsures (p->trueEnsuresConstraints, trueBranch->ensuresConstraints);
545 t = constraintList_mergeEnsures (p->ensuresConstraints, t);
547 f = constraintList_mergeEnsures (p->falseEnsuresConstraints, falseBranch->ensuresConstraints);
548 f = constraintList_mergeEnsures (p->ensuresConstraints, f);
550 // find ensures for whole if/else statement
552 e->ensuresConstraints = constraintList_logicalOr (t, f);
553 DPRINTF( ("Done IFELSE") );
557 // ret = message ("do { %s } while (%s)",
558 exprNode_generateConstraints (exprData_getPairB (data));
559 exprNode_generateConstraints (exprData_getPairA (data));
563 // ret = message ("{ %s }",
564 exprNode_generateConstraints (exprData_getSingle (data));
565 e->requiresConstraints = constraintList_copy ( (exprData_getSingle (data))->requiresConstraints );
566 e->ensuresConstraints = constraintList_copy ( (exprData_getSingle (data))->ensuresConstraints );
567 // e->constraints = (exprData_getSingle (data))->constraints;
572 return exprNode_stmtList (e);
581 bool lltok_isBoolean_Op (lltok tok)
583 /*this should really be a switch statement but
584 I don't want to violate the abstraction
585 maybe this should go in lltok.c */
587 if (lltok_isEq_Op (tok) )
591 if (lltok_isAnd_Op (tok) )
597 if (lltok_isOr_Op (tok) )
602 if (lltok_isGt_Op (tok) )
606 if (lltok_isLt_Op (tok) )
611 if (lltok_isLe_Op (tok) )
616 if (lltok_isGe_Op (tok) )
626 void exprNode_booleanTraverse (exprNode e, bool definatelv, bool definaterv, fileloc sequencePoint)
632 constraintList tempList;
635 tok = exprData_getOpTok (data);
638 t1 = exprData_getOpA (data);
639 t2 = exprData_getOpB (data);
642 /* arithmetic tests */
644 if (lltok_isEq_Op (tok) )
646 cons = constraint_makeEnsureEqual (t1, t2, sequencePoint);
647 e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons);
651 if (lltok_isLt_Op (tok) )
653 cons = constraint_makeEnsureLessThan (t1, t2, sequencePoint);
654 e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons);
655 cons = constraint_makeEnsureGreaterThanEqual (t1, t2, sequencePoint);
656 e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons);
660 if (lltok_isGe_Op (tok) )
663 cons = constraint_makeEnsureGreaterThanEqual (t1, t2, sequencePoint);
664 e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons);
666 cons = constraint_makeEnsureLessThan (t1, t2, sequencePoint);
667 e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons);
672 if (lltok_isGt_Op (tok) )
674 cons = constraint_makeEnsureGreaterThan (t1, t2, sequencePoint);
675 e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons);
676 cons = constraint_makeEnsureLessThanEqual (t1, t2, sequencePoint);
677 e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons);
680 if (lltok_isLe_Op (tok) )
682 cons = constraint_makeEnsureLessThanEqual (t1, t2, sequencePoint);
683 e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons);
685 cons = constraint_makeEnsureGreaterThan (t1, t2, sequencePoint);
686 e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons);
691 /*Logical operations */
693 if (lltok_isAnd_Op (tok) )
697 tempList = constraintList_copy (t1->trueEnsuresConstraints);
698 tempList = constraintList_addList (tempList, t2->trueEnsuresConstraints);
699 e->trueEnsuresConstraints = constraintList_addList(e->trueEnsuresConstraints, tempList);
701 //false ensures: fens t1 or tens t1 and fens t2
702 tempList = constraintList_copy (t1->trueEnsuresConstraints);
703 tempList = constraintList_addList (tempList, t2->falseEnsuresConstraints);
704 tempList = constraintList_logicalOr (tempList, t1->falseEnsuresConstraints);
705 e->falseEnsuresConstraints =constraintList_addList(e->falseEnsuresConstraints, tempList);
709 if (lltok_isOr_Op (tok) )
712 tempList = constraintList_copy (t1->falseEnsuresConstraints);
713 tempList = constraintList_addList (tempList, t2->falseEnsuresConstraints);
714 e->falseEnsuresConstraints = constraintList_addList(e->falseEnsuresConstraints, tempList);
716 //true ensures: tens t1 or fens t1 and tens t2
717 tempList = constraintList_copy (t1->falseEnsuresConstraints);
718 tempList = constraintList_addList (tempList, t2->trueEnsuresConstraints);
719 tempList = constraintList_logicalOr (tempList, t1->trueEnsuresConstraints);
720 e->trueEnsuresConstraints =constraintList_addList(e->trueEnsuresConstraints, tempList);
726 bool exprNode_exprTraverse (exprNode e, bool definatelv, bool definaterv, fileloc sequencePoint)
728 exprNode t1, t2, fcn;
730 bool handledExprNode;
734 if (exprNode_isError(e) )
739 DPRINTF((message ("exprNode_exprTraverset Analysising %s %s at", exprNode_unparse( e),
740 fileloc_unparse(exprNode_getfileloc(e) ) ) ) );
742 e->requiresConstraints = constraintList_new();
743 e->ensuresConstraints = constraintList_new();
744 e->trueEnsuresConstraints = constraintList_new();;
745 e->falseEnsuresConstraints = constraintList_new();;
747 if (exprNode_isUnhandled (e) )
751 // e = makeDataTypeConstraints (e);
753 handledExprNode = TRUE;
762 t1 = exprData_getSingle (data);
763 exprNode_exprTraverse (t1, definatelv, definaterv, sequencePoint);
764 e = exprNode_copyConstraints (e, t1);
771 t1 = (exprData_getPairA (data) );
772 t2 = (exprData_getPairB (data) );
773 cons = constraint_makeWriteSafeExprNode (t1, t2);
777 t1 = (exprData_getPairA (data) );
778 t2 = (exprData_getPairB (data) );
779 cons = constraint_makeReadSafeExprNode (t1, t2 );
782 e->requiresConstraints = constraintList_add(e->requiresConstraints, cons);
783 cons = constraint_makeEnsureMaxReadAtLeast (t1, t2, sequencePoint);
784 e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons);
786 cons = constraint_makeEnsureLteMaxRead (t2, t1);
787 e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons);
789 // cons = constraint_makeEnsureMinReadAtMost (t1, t2, sequencePoint);
790 // e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons);
792 exprNode_exprTraverse (exprData_getPairA (data), FALSE, TRUE, sequencePoint);
793 exprNode_exprTraverse (exprData_getPairB (data), FALSE, TRUE, sequencePoint);
795 /*@i325 Should check which is array/index. */
799 exprNode_exprTraverse (exprData_getUopNode (e->edata), definatelv, definaterv, sequencePoint);
800 // e->constraints = constraintList_exprNodemerge (exprData_getUopNode (e->edata), exprNode_undefined);
803 /* //t1 = exprData_getInitId (data); */
804 t2 = exprData_getInitNode (data);
805 //exprNode_exprTraverse (t1, TRUE, FALSE, sequencePoint );
807 exprNode_exprTraverse (t2, definatelv, TRUE, sequencePoint );
809 /* this test is nessecary because some expressions generate a null expression node. function pointer do that -- drl */
810 if ( (!exprNode_isError (e)) && (!exprNode_isError(t2)) )
812 cons = constraint_makeEnsureEqual (e, t2, sequencePoint);
813 e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons);
818 t1 = exprData_getOpA (data);
819 t2 = exprData_getOpB (data);
820 exprNode_exprTraverse (t1, TRUE, definaterv, sequencePoint );
821 lltok_unparse (exprData_getOpTok (data));
822 exprNode_exprTraverse (t2, definatelv, TRUE, sequencePoint );
824 /* this test is nessecary because some expressions generate a null expression node. function pointer do that -- drl */
825 if ( (!exprNode_isError (t1)) && (!exprNode_isError(t2)) )
827 cons = constraint_makeEnsureEqual (t1, t2, sequencePoint);
828 e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons);
832 t1 = exprData_getOpA (data);
833 t2 = exprData_getOpB (data);
835 exprNode_exprTraverse (t1, definatelv, definaterv, sequencePoint );
836 tok = exprData_getOpTok (data);
837 exprNode_exprTraverse (t2, definatelv, definaterv, sequencePoint );
839 if (lltok_isBoolean_Op (tok) )
840 exprNode_booleanTraverse (e, definatelv, definaterv, sequencePoint);
842 // e->constraints = constraintList_exprNodemerge (exprData_getOpA (data), exprData_getOpB (data));
845 ctype_unparse (qtype_getType (exprData_getType (data) ) );
850 exprNode_exprTraverse (exprData_getSingle (data), definatelv, definaterv, sequencePoint );
851 // e->constraints = constraintList_exprNodemerge (exprData_getSingle (e->edata), exprNode_undefined);
855 fcn = exprData_getFcn(data);
857 exprNode_exprTraverse (fcn, definatelv, definaterv, sequencePoint );
858 exprNodeList_unparse (exprData_getArgs (data) );
859 DPRINTF ( (message ("Got call that %s ( %s) ", exprNode_unparse(fcn), exprNodeList_unparse (exprData_getArgs (data) ) ) ) );
861 fcn->requiresConstraints = constraintList_addList (fcn->requiresConstraints,
862 checkCall (fcn, exprData_getArgs (data) ) );
864 fcn->ensuresConstraints = constraintList_addList (fcn->ensuresConstraints,
865 getPostConditions(fcn, exprData_getArgs (data),e ) );
867 t1 = exprNode_createNew (exprNode_getType (e) );
869 checkArgumentList (t1, exprData_getArgs(data), sequencePoint);
872 mergeResolve (e, t1, fcn);
874 // e->constraints = constraintList_add (e->constraints, constraint_create (e,exprNode_undefined, GT, CALLSAFE ) );
878 exprNode_exprTraverse (exprData_getSingle (data), definatelv, definaterv, sequencePoint );
882 cstring_makeLiteral ("return");;
887 exprNode_exprTraverse (exprData_getFieldNode (data), definatelv, definaterv, sequencePoint );
888 exprData_getFieldName (data) ;
892 exprNode_exprTraverse (exprData_getFieldNode (data), definatelv, definaterv, sequencePoint );
893 exprData_getFieldName (data);
896 case XPR_STRINGLITERAL:
897 cstring_copy (exprData_getLiteral (data));
901 cstring_copy (exprData_getLiteral (data));
905 t1 = exprData_getUopNode(data);
906 tok = (exprData_getUopTok (data));
907 //lltok_unparse (exprData_getUopTok (data));
908 exprNode_exprTraverse (t1, definatelv, definaterv, sequencePoint );
909 /*handle * pointer access */
910 if (lltok_isInc_Op (tok) )
912 DPRINTF(("doing ++(var)"));
913 t1 = exprData_getUopNode (data);
914 cons = constraint_makeMaxSetSideEffectPostIncrement (t1, sequencePoint );
915 e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons);
917 else if (lltok_isDec_Op (tok) )
919 DPRINTF(("doing --(var)"));
920 t1 = exprData_getUopNode (data);
921 cons = constraint_makeMaxSetSideEffectPostDecrement (t1, sequencePoint );
922 e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons);
925 if (lltok_isMult( exprData_getUopTok (data) ) )
929 cons = constraint_makeWriteSafeInt (t1, 0);
933 cons = constraint_makeReadSafeInt (t1, 0);
935 e->requiresConstraints = constraintList_add(e->requiresConstraints, cons);
939 if (lltok_isNot_Op (exprData_getUopTok (data) ) )
941 e->trueEnsuresConstraints = constraintList_copy (t1->falseEnsuresConstraints);
942 e->falseEnsuresConstraints = constraintList_copy (t1->trueEnsuresConstraints);
948 exprNode_exprTraverse (exprData_getUopNode (data), TRUE, definaterv, sequencePoint );
949 lltok_unparse (exprData_getUopTok (data));
950 if (lltok_isInc_Op (exprData_getUopTok (data) ) )
952 DPRINTF(("doing ++"));
953 t1 = exprData_getUopNode (data);
954 cons = constraint_makeMaxSetSideEffectPostIncrement (t1, sequencePoint );
955 e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons);
957 if (lltok_isDec_Op (exprData_getUopTok (data) ) )
959 DPRINTF(("doing --"));
960 t1 = exprData_getUopNode (data);
961 cons = constraint_makeMaxSetSideEffectPostDecrement (t1, sequencePoint );
962 e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons);
966 handledExprNode = FALSE;
969 e->requiresConstraints = constraintList_preserveOrig ( e->requiresConstraints);
970 e->ensuresConstraints = constraintList_preserveOrig ( e->ensuresConstraints);
971 e->requiresConstraints = constraintList_addGeneratingExpr ( e->requiresConstraints, e);
973 e->ensuresConstraints = constraintList_addGeneratingExpr ( e->ensuresConstraints, e);
975 DPRINTF((message ("ensures constraint for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->ensuresConstraints) ) ));
977 return handledExprNode;
981 constraintList exprNode_traversTrueEnsuresConstraints (exprNode e)
985 bool handledExprNode;
990 if (exprNode_handleError (e))
992 ret = constraintList_new();
995 ret = constraintList_copy (e->trueEnsuresConstraints );
997 handledExprNode = TRUE;
1004 t1 = exprData_getSingle (data);
1005 ret = constraintList_addList ( ret,exprNode_traversTrueEnsuresConstraints (t1) );
1010 ret = constraintList_addList (ret,
1011 exprNode_traversTrueEnsuresConstraints
1012 (exprData_getPairA (data) ) );
1014 ret = constraintList_addList (ret,
1015 exprNode_traversTrueEnsuresConstraints
1016 (exprData_getPairB (data) ) );
1020 ret = constraintList_addList (ret,
1021 exprNode_traversTrueEnsuresConstraints
1022 (exprData_getUopNode (data) ) );
1026 ret = constraintList_addList (ret, exprNode_traversTrueEnsuresConstraints
1027 (exprData_getUopNode (data) ) );
1030 ret = constraintList_addList (ret,
1031 exprNode_traversTrueEnsuresConstraints
1032 (exprData_getOpA (data) ) );
1034 ret = constraintList_addList (ret,
1035 exprNode_traversTrueEnsuresConstraints
1036 (exprData_getOpB (data) ) );
1039 ret = constraintList_addList (ret,
1040 exprNode_traversTrueEnsuresConstraints
1041 (exprData_getOpA (data) ) );
1043 ret = constraintList_addList (ret,
1044 exprNode_traversTrueEnsuresConstraints
1045 (exprData_getOpB (data) ) );
1049 // ctype_unparse (qtype_getType (exprData_getType (data) ) );
1055 ret = constraintList_addList (ret,
1056 exprNode_traversTrueEnsuresConstraints
1057 (exprData_getSingle (data) ) );
1061 ret = constraintList_addList (ret,
1062 exprNode_traversTrueEnsuresConstraints
1063 (exprData_getFcn (data) ) );
1064 /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) );
1068 ret = constraintList_addList (ret,
1069 exprNode_traversTrueEnsuresConstraints
1070 (exprData_getSingle (data) ) );
1073 case XPR_NULLRETURN:
1074 // cstring_makeLiteral ("return");;
1078 ret = constraintList_addList (ret,
1079 exprNode_traversTrueEnsuresConstraints
1080 (exprData_getFieldNode (data) ) );
1081 //exprData_getFieldName (data) ;
1085 ret = constraintList_addList (ret,
1086 exprNode_traversTrueEnsuresConstraints
1087 (exprData_getFieldNode (data) ) );
1088 // exprData_getFieldName (data);
1091 case XPR_STRINGLITERAL:
1092 // cstring_copy (exprData_getLiteral (data));
1096 // cstring_copy (exprData_getLiteral (data));
1100 ret = constraintList_addList (ret,
1101 exprNode_traversTrueEnsuresConstraints
1102 (exprData_getUopNode (data) ) );
1111 constraintList exprNode_traversFalseEnsuresConstraints (exprNode e)
1115 bool handledExprNode;
1120 if (exprNode_handleError (e))
1122 ret = constraintList_new();
1125 ret = constraintList_copy (e->falseEnsuresConstraints );
1127 handledExprNode = TRUE;
1134 t1 = exprData_getSingle (data);
1135 ret = constraintList_addList ( ret,exprNode_traversFalseEnsuresConstraints (t1) );
1140 ret = constraintList_addList (ret,
1141 exprNode_traversFalseEnsuresConstraints
1142 (exprData_getPairA (data) ) );
1144 ret = constraintList_addList (ret,
1145 exprNode_traversFalseEnsuresConstraints
1146 (exprData_getPairB (data) ) );
1150 ret = constraintList_addList (ret,
1151 exprNode_traversFalseEnsuresConstraints
1152 (exprData_getUopNode (data) ) );
1156 ret = constraintList_addList (ret, exprNode_traversFalseEnsuresConstraints
1157 (exprData_getUopNode (data) ) );
1160 ret = constraintList_addList (ret,
1161 exprNode_traversFalseEnsuresConstraints
1162 (exprData_getOpA (data) ) );
1164 ret = constraintList_addList (ret,
1165 exprNode_traversFalseEnsuresConstraints
1166 (exprData_getOpB (data) ) );
1169 ret = constraintList_addList (ret,
1170 exprNode_traversFalseEnsuresConstraints
1171 (exprData_getOpA (data) ) );
1173 ret = constraintList_addList (ret,
1174 exprNode_traversFalseEnsuresConstraints
1175 (exprData_getOpB (data) ) );
1179 // ctype_unparse (qtype_getType (exprData_getType (data) ) );
1185 ret = constraintList_addList (ret,
1186 exprNode_traversFalseEnsuresConstraints
1187 (exprData_getSingle (data) ) );
1191 ret = constraintList_addList (ret,
1192 exprNode_traversFalseEnsuresConstraints
1193 (exprData_getFcn (data) ) );
1194 /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) );
1198 ret = constraintList_addList (ret,
1199 exprNode_traversFalseEnsuresConstraints
1200 (exprData_getSingle (data) ) );
1203 case XPR_NULLRETURN:
1204 // cstring_makeLiteral ("return");;
1208 ret = constraintList_addList (ret,
1209 exprNode_traversFalseEnsuresConstraints
1210 (exprData_getFieldNode (data) ) );
1211 //exprData_getFieldName (data) ;
1215 ret = constraintList_addList (ret,
1216 exprNode_traversFalseEnsuresConstraints
1217 (exprData_getFieldNode (data) ) );
1218 // exprData_getFieldName (data);
1221 case XPR_STRINGLITERAL:
1222 // cstring_copy (exprData_getLiteral (data));
1226 // cstring_copy (exprData_getLiteral (data));
1230 ret = constraintList_addList (ret,
1231 exprNode_traversFalseEnsuresConstraints
1232 (exprData_getUopNode (data) ) );
1242 /* walk down the tree and get all requires Constraints in each subexpression*/
1243 constraintList exprNode_traversRequiresConstraints (exprNode e)
1247 bool handledExprNode;
1252 if (exprNode_handleError (e))
1254 ret = constraintList_new();
1257 ret = constraintList_copy (e->requiresConstraints );
1259 handledExprNode = TRUE;
1266 t1 = exprData_getSingle (data);
1267 ret = constraintList_addList ( ret,exprNode_traversRequiresConstraints (t1) );
1272 ret = constraintList_addList (ret,
1273 exprNode_traversRequiresConstraints
1274 (exprData_getPairA (data) ) );
1276 ret = constraintList_addList (ret,
1277 exprNode_traversRequiresConstraints
1278 (exprData_getPairB (data) ) );
1282 ret = constraintList_addList (ret,
1283 exprNode_traversRequiresConstraints
1284 (exprData_getUopNode (data) ) );
1288 ret = constraintList_addList (ret, exprNode_traversRequiresConstraints
1289 (exprData_getUopNode (data) ) );
1292 ret = constraintList_addList (ret,
1293 exprNode_traversRequiresConstraints
1294 (exprData_getOpA (data) ) );
1296 ret = constraintList_addList (ret,
1297 exprNode_traversRequiresConstraints
1298 (exprData_getOpB (data) ) );
1301 ret = constraintList_addList (ret,
1302 exprNode_traversRequiresConstraints
1303 (exprData_getOpA (data) ) );
1305 ret = constraintList_addList (ret,
1306 exprNode_traversRequiresConstraints
1307 (exprData_getOpB (data) ) );
1311 // ctype_unparse (qtype_getType (exprData_getType (data) ) );
1317 ret = constraintList_addList (ret,
1318 exprNode_traversRequiresConstraints
1319 (exprData_getSingle (data) ) );
1323 ret = constraintList_addList (ret,
1324 exprNode_traversRequiresConstraints
1325 (exprData_getFcn (data) ) );
1326 /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) );
1330 ret = constraintList_addList (ret,
1331 exprNode_traversRequiresConstraints
1332 (exprData_getSingle (data) ) );
1335 case XPR_NULLRETURN:
1336 // cstring_makeLiteral ("return");;
1340 ret = constraintList_addList (ret,
1341 exprNode_traversRequiresConstraints
1342 (exprData_getFieldNode (data) ) );
1343 //exprData_getFieldName (data) ;
1347 ret = constraintList_addList (ret,
1348 exprNode_traversRequiresConstraints
1349 (exprData_getFieldNode (data) ) );
1350 // exprData_getFieldName (data);
1353 case XPR_STRINGLITERAL:
1354 // cstring_copy (exprData_getLiteral (data));
1358 // cstring_copy (exprData_getLiteral (data));
1362 ret = constraintList_addList (ret,
1363 exprNode_traversRequiresConstraints
1364 (exprData_getUopNode (data) ) );
1374 /* walk down the tree and get all Ensures Constraints in each subexpression*/
1375 constraintList exprNode_traversEnsuresConstraints (exprNode e)
1379 bool handledExprNode;
1382 // constraintExpr tmp;
1387 if (exprNode_handleError (e))
1389 ret = constraintList_new();
1393 ret = constraintList_copy (e->ensuresConstraints );
1394 handledExprNode = TRUE;
1399 "exprnode_traversEnsuresConstraints call for %s with constraintList of %s",
1400 exprNode_unparse (e),
1401 constraintList_print(e->ensuresConstraints)
1409 t1 = exprData_getSingle (data);
1410 ret = constraintList_addList ( ret,exprNode_traversEnsuresConstraints (t1) );
1415 ret = constraintList_addList (ret,
1416 exprNode_traversEnsuresConstraints
1417 (exprData_getPairA (data) ) );
1419 ret = constraintList_addList (ret,
1420 exprNode_traversEnsuresConstraints
1421 (exprData_getPairB (data) ) );
1425 ret = constraintList_addList (ret,
1426 exprNode_traversEnsuresConstraints
1427 (exprData_getUopNode (data) ) );
1431 ret = constraintList_addList (ret, exprNode_traversEnsuresConstraints
1432 (exprData_getUopNode (data) ) );
1435 ret = constraintList_addList (ret,
1436 exprNode_traversEnsuresConstraints
1437 (exprData_getOpA (data) ) );
1439 ret = constraintList_addList (ret,
1440 exprNode_traversEnsuresConstraints
1441 (exprData_getOpB (data) ) );
1444 ret = constraintList_addList (ret,
1445 exprNode_traversEnsuresConstraints
1446 (exprData_getOpA (data) ) );
1448 ret = constraintList_addList (ret,
1449 exprNode_traversEnsuresConstraints
1450 (exprData_getOpB (data) ) );
1454 // ctype_unparse (qtype_getType (exprData_getType (data) ) );
1460 ret = constraintList_addList (ret,
1461 exprNode_traversEnsuresConstraints
1462 (exprData_getSingle (data) ) );
1466 ret = constraintList_addList (ret,
1467 exprNode_traversEnsuresConstraints
1468 (exprData_getFcn (data) ) );
1469 /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) );
1473 ret = constraintList_addList (ret,
1474 exprNode_traversEnsuresConstraints
1475 (exprData_getSingle (data) ) );
1478 case XPR_NULLRETURN:
1479 // cstring_makeLiteral ("return");;
1483 ret = constraintList_addList (ret,
1484 exprNode_traversEnsuresConstraints
1485 (exprData_getFieldNode (data) ) );
1486 //exprData_getFieldName (data) ;
1490 ret = constraintList_addList (ret,
1491 exprNode_traversEnsuresConstraints
1492 (exprData_getFieldNode (data) ) );
1493 // exprData_getFieldName (data);
1496 case XPR_STRINGLITERAL:
1497 // cstring_copy (exprData_getLiteral (data));
1501 // cstring_copy (exprData_getLiteral (data));
1505 ret = constraintList_addList (ret,
1506 exprNode_traversEnsuresConstraints
1507 (exprData_getUopNode (data) ) );
1513 "exprnode_traversEnsuresConstraints call for %s with constraintList of is returning %s",
1514 exprNode_unparse (e),
1515 // constraintList_print(e->ensuresConstraints),
1516 constraintList_print(ret)