]>
Commit | Line | Data |
---|---|---|
616915dd | 1 | |
2 | /* | |
3 | ** constraintGeneration.c | |
4 | */ | |
5 | ||
6 | //#define DEBUGPRINT 1 | |
7 | ||
8 | # include <ctype.h> /* for isdigit */ | |
9 | # include "lclintMacros.nf" | |
10 | # include "basic.h" | |
920a3797 | 11 | |
616915dd | 12 | # include "cgrammar_tokens.h" |
13 | ||
14 | # include "exprChecks.h" | |
616915dd | 15 | # include "exprNodeSList.h" |
16 | ||
920a3797 | 17 | //# include "exprDataQuite.i" |
616915dd | 18 | |
84c9ffbf | 19 | /*@access exprNode @*/ |
20 | ||
470b7798 | 21 | |
28bf4b0b | 22 | static bool exprNode_handleError(/*@dependent@*/ exprNode p_e); |
616915dd | 23 | |
24 | //static cstring exprNode_findConstraints ( exprNode p_e); | |
28bf4b0b | 25 | static bool exprNode_isMultiStatement(/*@dependent@*/ exprNode p_e); |
26 | static void exprNode_multiStatement (/*@dependent@*/ exprNode p_e); | |
84c9ffbf | 27 | |
616915dd | 28 | //static void exprNode_constraintPropagateUp (exprNode p_e); |
616915dd | 29 | |
28bf4b0b | 30 | static constraintList exprNode_traversTrueEnsuresConstraints (/*@dependent@*/ exprNode p_e); |
31 | static constraintList exprNode_traversFalseEnsuresConstraints (/*@dependent@*/ exprNode p_e); | |
616915dd | 32 | |
28bf4b0b | 33 | static exprNode makeDataTypeConstraints (/*@returned@*/ exprNode p_e); |
34 | ||
35 | static void checkArgumentList (/*@out@*/ exprNode p_temp, exprNodeList p_arglist, fileloc p_sequencePoint) /*@modifies p_temp @*/; | |
36 | ||
37 | static constraintList checkCall (/*@dependent@*/ exprNode p_fcn, exprNodeList p_arglist); | |
4ab867d6 | 38 | |
920a3797 | 39 | //constraintList constraintList_makeFixedArrayConstraints (sRefSet s); |
616915dd | 40 | |
41 | //bool exprNode_testd() | |
42 | //{ | |
43 | /* if ( ( (exprNode_isError ) ) ) | |
44 | { | |
45 | } | |
46 | if ( ( (e_1 ) ) ) | |
47 | { | |
48 | } | |
49 | */ | |
50 | //} | |
51 | ||
28bf4b0b | 52 | static bool exprNode_isUnhandled (/*@dependent@*/ /*@obsever@*/ exprNode e) |
616915dd | 53 | { |
54 | llassert( exprNode_isDefined(e) ); | |
55 | switch (e->kind) | |
56 | { | |
57 | case XPR_INITBLOCK: | |
58 | case XPR_EMPTY: | |
59 | case XPR_LABEL: | |
60 | case XPR_CONST: | |
61 | case XPR_VAR: | |
62 | case XPR_BODY: | |
63 | case XPR_OFFSETOF: | |
64 | case XPR_ALIGNOFT: | |
65 | case XPR_ALIGNOF: | |
66 | case XPR_VAARG: | |
67 | case XPR_ITERCALL: | |
68 | case XPR_ITER: | |
616915dd | 69 | case XPR_GOTO: |
70 | case XPR_CONTINUE: | |
71 | case XPR_BREAK: | |
72 | case XPR_COMMA: | |
73 | case XPR_COND: | |
74 | case XPR_TOK: | |
75 | case XPR_FTDEFAULT: | |
76 | case XPR_DEFAULT: | |
77 | case XPR_SWITCH: | |
78 | case XPR_FTCASE: | |
79 | case XPR_CASE: | |
80 | // case XPR_INIT: | |
81 | case XPR_NODE: | |
82 | DPRINTF((message ("Warning current constraint generation does not handle expression %s", exprNode_unparse(e)) ) ); | |
83 | return TRUE; | |
84 | /*@notreached@*/ | |
85 | break; | |
86 | default: | |
87 | return FALSE; | |
88 | ||
89 | } | |
90 | /*not reached*/ | |
91 | return FALSE; | |
92 | } | |
93 | ||
94 | bool exprNode_handleError( exprNode e) | |
95 | { | |
96 | if (exprNode_isError (e) || exprNode_isUnhandled(e) ) | |
97 | { | |
98 | static /*@only@*/ cstring error = cstring_undefined; | |
99 | ||
100 | if (!cstring_isDefined (error)) | |
101 | { | |
102 | error = cstring_makeLiteral ("<error>"); | |
103 | } | |
104 | ||
105 | /*@-unqualifiedtrans*/ return TRUE; /*@=unqualifiedtrans*/ | |
106 | } | |
107 | return FALSE; | |
108 | } | |
109 | ||
28bf4b0b | 110 | bool /*@alt void@*/ exprNode_generateConstraints (/*@dependent@*/ exprNode e) |
616915dd | 111 | { |
112 | if (exprNode_isError (e) ) | |
113 | return FALSE; | |
bb25bea6 | 114 | /* |
c3e695ff | 115 | e->requiresConstraints = constraintList_makeNew(); |
116 | e->ensuresConstraints = constraintList_makeNew(); | |
117 | e->trueEnsuresConstraints = constraintList_makeNew(); | |
118 | e->falseEnsuresConstraints = constraintList_makeNew(); | |
bb25bea6 | 119 | */ |
9280addf | 120 | |
616915dd | 121 | if (exprNode_isUnhandled (e) ) |
122 | { | |
123 | DPRINTF( (message("Warning ignoring %s", exprNode_unparse (e) ) ) ); | |
9280addf | 124 | return FALSE; |
616915dd | 125 | } |
126 | ||
127 | ||
128 | // e = makeDataTypeConstraints (e); | |
129 | ||
130 | DPRINTF((message ("exprNode_generateConstraints Analysising %s at %s", exprNode_unparse( e), | |
131 | fileloc_unparse(exprNode_getfileloc(e) ) ) ) ); | |
132 | ||
133 | if (exprNode_isMultiStatement ( e) ) | |
134 | { | |
135 | exprNode_multiStatement(e); | |
136 | } | |
137 | else | |
138 | { | |
9280addf | 139 | fileloc loc; |
140 | ||
141 | loc = exprNode_getNextSequencePoint(e); | |
142 | exprNode_exprTraverse(e, FALSE, FALSE, loc); | |
143 | ||
bb25bea6 | 144 | fileloc_free(loc); |
616915dd | 145 | return FALSE; |
146 | } | |
147 | ||
148 | { | |
149 | constraintList c; | |
150 | ||
151 | c = constraintList_makeFixedArrayConstraints (e->uses); | |
28bf4b0b | 152 | e->requiresConstraints = constraintList_reflectChangesFreePre (e->requiresConstraints, c); |
616915dd | 153 | |
154 | // e->ensuresConstraints = constraintList_mergeEnsures(c, e->ensuresConstraints); | |
155 | ||
bb25bea6 | 156 | constraintList_free(c); |
616915dd | 157 | } |
158 | ||
bb25bea6 | 159 | DPRINTF ( (message ("e->requiresConstraints %s", constraintList_printDetailed (e->requiresConstraints) ) ) ); |
616915dd | 160 | return FALSE; |
161 | } | |
162 | ||
163 | ||
164 | /* handles multiple statements */ | |
165 | ||
166 | bool exprNode_isMultiStatement(exprNode e) | |
167 | { | |
168 | if (exprNode_handleError (e) != NULL) | |
169 | return FALSE; | |
170 | ||
171 | switch (e->kind) | |
172 | { | |
173 | case XPR_FOR: | |
174 | case XPR_FORPRED: | |
175 | case XPR_IF: | |
176 | case XPR_IFELSE: | |
177 | case XPR_WHILE: | |
178 | case XPR_WHILEPRED: | |
179 | case XPR_DOWHILE: | |
180 | case XPR_BLOCK: | |
181 | case XPR_STMT: | |
182 | case XPR_STMTLIST: | |
183 | return TRUE; | |
184 | default: | |
185 | return FALSE; | |
186 | } | |
187 | ||
188 | } | |
189 | ||
28bf4b0b | 190 | static void exprNode_stmt ( /*@dependent@*/ exprNode e) |
616915dd | 191 | { |
192 | exprNode snode; | |
193 | fileloc loc; | |
d46ce6a4 | 194 | cstring s; |
9280addf | 195 | |
616915dd | 196 | if (exprNode_isError(e) ) |
197 | { | |
84c9ffbf | 198 | return; // FALSE; |
616915dd | 199 | } |
bb25bea6 | 200 | /*e->requiresConstraints = constraintList_makeNew(); |
201 | e->ensuresConstraints = constraintList_makeNew(); */ | |
616915dd | 202 | // e = makeDataTypeConstraints(e); |
203 | ||
204 | ||
205 | DPRINTF(( "STMT:") ); | |
9280addf | 206 | s = exprNode_unparse(e); |
207 | // DPRINTF ( ( message("STMT: %s ") ) ); | |
208 | ||
616915dd | 209 | if (e->kind == XPR_INIT) |
210 | { | |
bb25bea6 | 211 | constraintList tempList; |
616915dd | 212 | DPRINTF (("Init") ); |
213 | DPRINTF ( (message ("%s ", exprNode_unparse (e)) ) ); | |
214 | loc = exprNode_getNextSequencePoint(e); /* reduces to an expression */ | |
84c9ffbf | 215 | exprNode_exprTraverse (e, FALSE, FALSE, loc); |
bb25bea6 | 216 | fileloc_free(loc); |
217 | ||
218 | tempList = e->requiresConstraints; | |
616915dd | 219 | e->requiresConstraints = exprNode_traversRequiresConstraints(e); |
bb25bea6 | 220 | constraintList_free(tempList); |
221 | ||
222 | tempList = e->ensuresConstraints; | |
616915dd | 223 | e->ensuresConstraints = exprNode_traversEnsuresConstraints(e); |
bb25bea6 | 224 | constraintList_free(tempList); |
84c9ffbf | 225 | return; // notError; |
616915dd | 226 | } |
227 | ||
228 | if (e->kind != XPR_STMT) | |
229 | { | |
230 | ||
231 | DPRINTF (("Not Stmt") ); | |
232 | DPRINTF ( (message ("%s ", exprNode_unparse (e)) ) ); | |
233 | if (exprNode_isMultiStatement (e) ) | |
234 | { | |
235 | return exprNode_multiStatement (e ); | |
236 | } | |
84c9ffbf | 237 | DPRINTF( (message ("Ignoring non-statement %s", exprNode_unparse(e) ) ) ); |
238 | return; //TRUE; | |
616915dd | 239 | // llassert(FALSE); |
240 | } | |
241 | ||
242 | DPRINTF (("Stmt") ); | |
243 | DPRINTF ( (message ("%s ", exprNode_unparse (e)) ) ); | |
244 | ||
245 | snode = exprData_getUopNode (e->edata); | |
246 | ||
247 | /* could be stmt involving multiple statements: | |
248 | i.e. if, while for ect. | |
249 | */ | |
250 | ||
251 | if (exprNode_isMultiStatement (snode)) | |
252 | { | |
84c9ffbf | 253 | exprNode_multiStatement (snode); |
254 | (void) exprNode_copyConstraints (e, snode); | |
255 | return; | |
616915dd | 256 | } |
257 | ||
258 | loc = exprNode_getNextSequencePoint(e); /* reduces to an expression */ | |
84c9ffbf | 259 | //notError = |
260 | exprNode_exprTraverse (snode, FALSE, FALSE, loc); | |
bb25bea6 | 261 | |
262 | fileloc_free(loc); | |
263 | ||
264 | constraintList_free (e->requiresConstraints); | |
616915dd | 265 | e->requiresConstraints = exprNode_traversRequiresConstraints(snode); |
266 | // printf ("For: %s \n", exprNode_unparse (e) ); | |
267 | // printf ("%s\n", constraintList_print(e->requiresConstraints) ); | |
bb25bea6 | 268 | |
269 | constraintList_free (e->ensuresConstraints); | |
616915dd | 270 | e->ensuresConstraints = exprNode_traversEnsuresConstraints(snode); |
271 | // printf ("Ensures that:\n %s\n", constraintList_print(e->ensuresConstraints) ); | |
272 | // llassert(notError); | |
bb25bea6 | 273 | |
274 | DPRINTF ( (message ("smtlist constraints are: pre: %s \n and \t post %s\n", | |
275 | constraintList_print(e->requiresConstraints), | |
276 | constraintList_print(e->ensuresConstraints) ) ) ); | |
277 | ||
84c9ffbf | 278 | return; // notError; |
616915dd | 279 | |
280 | } | |
281 | ||
282 | ||
28bf4b0b | 283 | static void exprNode_stmtList (/*@dependent@*/ exprNode e) |
616915dd | 284 | { |
285 | exprNode stmt1, stmt2; | |
286 | if (exprNode_isError (e) ) | |
287 | { | |
84c9ffbf | 288 | return; // FALSE; |
616915dd | 289 | } |
290 | ||
bb25bea6 | 291 | /* |
292 | e->requiresConstraints = constraintList_makeNew(); | |
293 | e->ensuresConstraints = constraintList_makeNew(); | |
294 | */ | |
616915dd | 295 | // e = makeDataTypeConstraints(e); |
296 | ||
297 | /*Handle case of stmtList with only one statement: | |
298 | The parse tree stores this as stmt instead of stmtList*/ | |
299 | if (e->kind != XPR_STMTLIST) | |
300 | { | |
84c9ffbf | 301 | exprNode_stmt(e); |
302 | return; | |
616915dd | 303 | } |
304 | llassert (e->kind == XPR_STMTLIST); | |
305 | DPRINTF(( "STMTLIST:") ); | |
306 | DPRINTF ((cstring_toCharsSafe (exprNode_unparse(e)) ) ); | |
307 | stmt1 = exprData_getPairA (e->edata); | |
308 | stmt2 = exprData_getPairB (e->edata); | |
309 | ||
310 | ||
311 | DPRINTF((" stmtlist ") ); | |
312 | DPRINTF ((message("XW%s | %s", exprNode_unparse(stmt1), exprNode_unparse(stmt2) ) ) ); | |
313 | ||
314 | exprNode_stmt (stmt1); | |
315 | DPRINTF(("\nstmt after stmtList call " )); | |
316 | ||
317 | exprNode_stmt (stmt2); | |
28bf4b0b | 318 | exprNode_mergeResolve (e, stmt1, stmt2 ); |
616915dd | 319 | |
320 | DPRINTF ( (message ("smtlist constraints are: pre: %s \n and \t post %s\n", | |
321 | constraintList_print(e->requiresConstraints), | |
322 | constraintList_print(e->ensuresConstraints) ) ) ); | |
84c9ffbf | 323 | return; // TRUE; |
a8e557d3 | 324 | } |
325 | ||
28bf4b0b | 326 | static exprNode doIf (/*@returned@*/ exprNode e, /*@dependent@*/ exprNode test, /*@dependent@*/ exprNode body) |
616915dd | 327 | { |
bb25bea6 | 328 | constraintList temp; |
329 | ||
616915dd | 330 | DPRINTF ((message ("doIf: %s ", exprNode_unparse(e) ) ) ); |
470b7798 | 331 | |
a8e557d3 | 332 | llassert(exprNode_isDefined(test) ); |
84c9ffbf | 333 | llassert (exprNode_isDefined (e) ); |
334 | llassert (exprNode_isDefined (body) ); | |
bb25bea6 | 335 | |
616915dd | 336 | |
bb25bea6 | 337 | DPRINTF((message ("ensures constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->ensuresConstraints) ) )); |
338 | ||
339 | DPRINTF((message ("Requires constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->ensuresConstraints) ) )); | |
340 | ||
341 | DPRINTF((message ("trueEnsures constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->trueEnsuresConstraints) ) )); | |
342 | ||
343 | DPRINTF((message ("falseEnsures constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->falseEnsuresConstraints) ) )); | |
344 | ||
345 | ||
346 | ||
347 | DPRINTF((message ("ensures constraints for %s are %s", exprNode_unparse(test), constraintList_printDetailed(test->ensuresConstraints) ) )); | |
348 | ||
349 | DPRINTF((message ("Requires constraints for %s are %s", exprNode_unparse(test), constraintList_printDetailed(test->ensuresConstraints) ) )); | |
350 | ||
351 | DPRINTF((message ("trueEnsures constraints for %s are %s", exprNode_unparse(test), constraintList_printDetailed(test->trueEnsuresConstraints) ) )); | |
352 | ||
353 | DPRINTF((message ("falseEnsures constraints for %s are %s", exprNode_unparse(test), constraintList_printDetailed(test->falseEnsuresConstraints) ) )); | |
354 | ||
355 | ||
356 | ||
357 | temp = test->trueEnsuresConstraints; | |
358 | test->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(test); | |
359 | constraintList_free(temp); | |
360 | ||
361 | temp = test->ensuresConstraints; | |
616915dd | 362 | test->ensuresConstraints = exprNode_traversEnsuresConstraints (test); |
bb25bea6 | 363 | constraintList_free(temp); |
364 | ||
365 | temp = test->requiresConstraints; | |
470b7798 | 366 | test->requiresConstraints = exprNode_traversRequiresConstraints (test); |
bb25bea6 | 367 | constraintList_free(temp); |
616915dd | 368 | |
bb25bea6 | 369 | |
370 | test->trueEnsuresConstraints = constraintList_substituteFreeTarget(test->trueEnsuresConstraints, test->ensuresConstraints); | |
c3e695ff | 371 | |
372 | DPRINTF ((message ("doIf: test ensures %s ", constraintList_print(test->ensuresConstraints) ) ) ); | |
373 | ||
374 | DPRINTF ((message ("doIf: test true ensures %s ", constraintList_print(test->trueEnsuresConstraints) ) ) ); | |
bb25bea6 | 375 | |
376 | constraintList_free(e->requiresConstraints); | |
28bf4b0b | 377 | e->requiresConstraints = constraintList_reflectChanges(body->requiresConstraints, test->trueEnsuresConstraints); |
bb25bea6 | 378 | |
28bf4b0b | 379 | e->requiresConstraints = constraintList_reflectChangesFreePre (e->requiresConstraints, |
616915dd | 380 | test->ensuresConstraints); |
bb25bea6 | 381 | temp = e->requiresConstraints; |
470b7798 | 382 | e->requiresConstraints = constraintList_mergeRequires (e->requiresConstraints, test->requiresConstraints); |
bb25bea6 | 383 | constraintList_free(temp); |
384 | ||
385 | ||
28bf4b0b | 386 | //drl possible problem : warning bad |
bb25bea6 | 387 | constraintList_free(e->ensuresConstraints); |
616915dd | 388 | e->ensuresConstraints = constraintList_copy (test->ensuresConstraints); |
90bc41f7 | 389 | |
390 | if (exprNode_mayEscape (body) ) | |
391 | { | |
392 | DPRINTF (( message("doIf: the if statement body %s returns or exits", exprNode_unparse(body) ) )); | |
bb25bea6 | 393 | e->ensuresConstraints = constraintList_mergeEnsuresFreeFirst (e->ensuresConstraints, |
470b7798 | 394 | test->falseEnsuresConstraints); |
90bc41f7 | 395 | } |
396 | ||
9280addf | 397 | DPRINTF ((message ("doIf: if requiers %s ", constraintList_print(e->requiresConstraints) ) ) ); |
398 | ||
616915dd | 399 | return e; |
400 | } | |
401 | ||
470b7798 | 402 | /*drl added 3/4/2001 |
403 | Also used for condition i.e. ?: operation | |
404 | ||
405 | Precondition | |
406 | This function assumes that p, trueBranch, falseBranch have have all been traversed | |
407 | for constraints i.e. we assume that exprNode_traversEnsuresConstraints, | |
408 | exprNode_traversRequiresConstraints, exprNode_traversTrueEnsuresConstraints, | |
409 | exprNode_traversFalseEnsuresConstraints have all been run | |
410 | */ | |
411 | ||
412 | ||
28bf4b0b | 413 | static exprNode doIfElse (/*@returned@*/ exprNode e, /*@dependent@*/ exprNode p, /*@dependent@*/ exprNode trueBranch, /*@dependent@*/ exprNode falseBranch) |
470b7798 | 414 | { |
415 | ||
bb25bea6 | 416 | constraintList c1, cons, t, t2, f, f2; |
417 | ||
418 | DPRINTF ((message ("doIfElse: %s ", exprNode_unparse(e) ) ) ); | |
470b7798 | 419 | |
420 | // do requires clauses | |
421 | c1 = constraintList_copy (p->ensuresConstraints); | |
422 | ||
28bf4b0b | 423 | t = constraintList_reflectChanges(trueBranch->requiresConstraints, p->trueEnsuresConstraints); |
424 | t = constraintList_reflectChangesFreePre (t, p->ensuresConstraints); | |
470b7798 | 425 | |
28bf4b0b | 426 | cons = constraintList_reflectChanges(falseBranch->requiresConstraints, p->falseEnsuresConstraints); |
427 | cons = constraintList_reflectChangesFreePre (cons, c1); | |
470b7798 | 428 | |
bb25bea6 | 429 | constraintList_free(e->requiresConstraints); |
430 | e->requiresConstraints = constraintList_mergeRequiresFreeFirst (t, cons); | |
431 | e->requiresConstraints = constraintList_mergeRequiresFreeFirst (e->requiresConstraints, p->requiresConstraints); | |
470b7798 | 432 | |
433 | // do ensures clauses | |
434 | // find the the ensures lists for each subbranch | |
435 | t = constraintList_mergeEnsures (p->trueEnsuresConstraints, trueBranch->ensuresConstraints); | |
bb25bea6 | 436 | t2 = t; |
470b7798 | 437 | t = constraintList_mergeEnsures (p->ensuresConstraints, t); |
bb25bea6 | 438 | constraintList_free(t2); |
439 | ||
470b7798 | 440 | f = constraintList_mergeEnsures (p->falseEnsuresConstraints, falseBranch->ensuresConstraints); |
bb25bea6 | 441 | f2 = f; |
470b7798 | 442 | f = constraintList_mergeEnsures (p->ensuresConstraints, f); |
bb25bea6 | 443 | constraintList_free(f2); |
470b7798 | 444 | |
445 | // find ensures for whole if/else statement | |
446 | ||
bb25bea6 | 447 | constraintList_free(e->ensuresConstraints); |
448 | ||
470b7798 | 449 | e->ensuresConstraints = constraintList_logicalOr (t, f); |
450 | ||
bb25bea6 | 451 | constraintList_free(t); |
452 | constraintList_free(f); | |
453 | constraintList_free(cons); | |
454 | constraintList_free(c1); | |
455 | ||
456 | DPRINTF ((message ("doIfElse: if requires %q ", constraintList_print(e->requiresConstraints) ) ) ); | |
457 | DPRINTF ((message ("doIfElse: if ensures %q ", constraintList_print(e->ensuresConstraints) ) ) ); | |
458 | ||
470b7798 | 459 | return e; |
460 | } | |
9280addf | 461 | |
28bf4b0b | 462 | static exprNode doWhile (/*@returned@*/ exprNode e, /*@dependent@*/ exprNode test, /*@dependent@*/ exprNode body) |
9280addf | 463 | { |
464 | DPRINTF ((message ("doWhile: %s ", exprNode_unparse(e) ) ) ); | |
465 | return doIf (e, test, body); | |
466 | } | |
467 | ||
920a3797 | 468 | /*@only@*/ constraintList constraintList_makeFixedArrayConstraints (/*@observer@*/ sRefSet s) |
616915dd | 469 | { |
470 | constraintList ret; | |
470b7798 | 471 | constraint con; |
c3e695ff | 472 | ret = constraintList_makeNew(); |
616915dd | 473 | |
474 | sRefSet_elements (s, el) | |
475 | { | |
476 | // llassert (el); | |
477 | if (sRef_isFixedArray(el) ) | |
478 | { | |
84c9ffbf | 479 | long int size; |
470b7798 | 480 | DPRINTF( (message("%s is a fixed array", |
481 | sRef_unparse(el)) ) ); | |
482 | //if (el->kind == SK_DERIVED) | |
483 | // break; //hack until I find the real problem | |
84c9ffbf | 484 | size = sRef_getArraySize(el); |
616915dd | 485 | DPRINTF( (message("%s is a fixed array with size %d", |
84c9ffbf | 486 | sRef_unparse(el), (int)size) ) ); |
487 | con = constraint_makeSRefSetBufferSize (el, (size - 1)); | |
488 | //con = constraint_makeSRefWriteSafeInt (el, (size - 1)); | |
616915dd | 489 | ret = constraintList_add(ret, con); |
490 | } | |
491 | else | |
492 | { | |
493 | DPRINTF( (message("%s is not a fixed array", | |
494 | sRef_unparse(el)) ) ); | |
470b7798 | 495 | |
496 | ||
497 | if (sRef_isExternallyVisible (el) ) | |
498 | { | |
499 | /*DPRINTF( (message("%s is externally visible", | |
500 | sRef_unparse(el) ) )); | |
501 | con = constraint_makeSRefWriteSafeInt(el, 0); | |
502 | ret = constraintList_add(ret, con); | |
503 | ||
504 | con = constraint_makeSRefReadSafeInt(el, 0); | |
505 | ||
506 | ret = constraintList_add(ret, con);*/ | |
507 | } | |
616915dd | 508 | } |
509 | } | |
510 | end_sRefSet_elements | |
511 | ||
470b7798 | 512 | DPRINTF(( message("constraintList_makeFixedArrayConstraints returning %s", |
513 | constraintList_print(ret) ) )); | |
616915dd | 514 | return ret; |
515 | } | |
516 | ||
4ab867d6 | 517 | exprNode makeDataTypeConstraints (/*@returned@*/ exprNode e) |
616915dd | 518 | { |
519 | constraintList c; | |
520 | DPRINTF(("makeDataTypeConstraints")); | |
521 | ||
522 | c = constraintList_makeFixedArrayConstraints (e->uses); | |
523 | ||
4ab867d6 | 524 | e->ensuresConstraints = constraintList_addListFree (e->ensuresConstraints, c); |
616915dd | 525 | |
526 | return e; | |
527 | } | |
528 | ||
28bf4b0b | 529 | static void doFor (/*@dependent@*/ exprNode e, /*@dependent@*/ exprNode forPred, /*@dependent@*/ exprNode forBody) |
616915dd | 530 | { |
531 | exprNode init, test, inc; | |
532 | //merge the constraints: modle as if statement | |
533 | /* init | |
534 | if (test) | |
535 | for body | |
536 | inc */ | |
537 | init = exprData_getTripleInit (forPred->edata); | |
538 | test = exprData_getTripleTest (forPred->edata); | |
539 | inc = exprData_getTripleInc (forPred->edata); | |
540 | ||
541 | if ( ( (exprNode_isError (test) /*|| (exprNode_isError(init) )*/ ) || (exprNode_isError (inc) ) ) ) | |
542 | { | |
543 | DPRINTF ((message ("strange for statement:%s, ignoring it", exprNode_unparse(e) ) ) ); | |
544 | return; | |
545 | } | |
546 | ||
28bf4b0b | 547 | exprNode_forLoopHeuristics(e, forPred, forBody); |
616915dd | 548 | |
bb25bea6 | 549 | constraintList_free(e->requiresConstraints); |
28bf4b0b | 550 | e->requiresConstraints = constraintList_reflectChanges(forBody->requiresConstraints, test->ensuresConstraints); |
551 | e->requiresConstraints = constraintList_reflectChangesFreePre (e->requiresConstraints, test->trueEnsuresConstraints); | |
552 | e->requiresConstraints = constraintList_reflectChangesFreePre (e->requiresConstraints, forPred->ensuresConstraints); | |
616915dd | 553 | |
554 | if (!forBody->canBreak) | |
555 | { | |
4ab867d6 | 556 | e->ensuresConstraints = constraintList_addListFree(e->ensuresConstraints, constraintList_copy(forPred->ensuresConstraints) ); |
557 | e->ensuresConstraints = constraintList_addListFree(e->ensuresConstraints,constraintList_copy( test->falseEnsuresConstraints)); | |
bb25bea6 | 558 | // forPred->ensuresConstraints = constraintList_undefined; |
559 | // test->falseEnsuresConstraints = constraintList_undefined; | |
616915dd | 560 | } |
561 | else | |
562 | { | |
563 | DPRINTF(("Can break") ); | |
564 | } | |
565 | ||
566 | } | |
567 | ||
bb25bea6 | 568 | static exprNode doSwitch (/*@returned@*/ exprNode e) |
470b7798 | 569 | { |
570 | exprNode body; | |
571 | exprData data; | |
572 | ||
573 | data = e->edata; | |
574 | llassert(FALSE); | |
90bc41f7 | 575 | //DPRINTF (( message ("doSwitch for: switch (%s) %s", |
470b7798 | 576 | // exprNode_unparse (exprData_getPairA (data)), |
577 | // exprNode_unparse (exprData_getPairB (data))) )); | |
578 | ||
579 | body = exprData_getPairB (data); | |
580 | ||
581 | // exprNode_generateConstraints(body); | |
582 | ||
583 | // e->requiresConstraints = constraintList_copy ( body->requiresConstraints ); | |
584 | //e->ensuresConstraints = constraintList_copy ( body->ensuresConstraints ); | |
585 | ||
586 | return e; | |
587 | } | |
9280addf | 588 | |
589 | ||
28bf4b0b | 590 | void exprNode_multiStatement (/*@dependent@*/ exprNode e) |
616915dd | 591 | { |
592 | ||
593 | bool ret; | |
594 | exprData data; | |
595 | exprNode e1, e2; | |
596 | exprNode p, trueBranch, falseBranch; | |
597 | exprNode forPred, forBody; | |
470b7798 | 598 | exprNode test; |
bb25bea6 | 599 | |
600 | constraintList temp; | |
601 | ||
470b7798 | 602 | // constraintList t, f; |
bb25bea6 | 603 | /*e->requiresConstraints = constraintList_makeNew(); |
c3e695ff | 604 | e->ensuresConstraints = constraintList_makeNew(); |
605 | e->trueEnsuresConstraints = constraintList_makeNew(); | |
606 | e->falseEnsuresConstraints = constraintList_makeNew(); | |
bb25bea6 | 607 | */ |
616915dd | 608 | // e = makeDataTypeConstraints(e); |
609 | ||
610 | DPRINTF((message ("exprNode_multistatement Analysising %s %s at", exprNode_unparse( e), | |
611 | fileloc_unparse(exprNode_getfileloc(e) ) ) ) ); | |
612 | ||
613 | if (exprNode_handleError (e)) | |
614 | { | |
84c9ffbf | 615 | return; // FALSE; |
616915dd | 616 | } |
617 | ||
618 | data = e->edata; | |
619 | ||
620 | ret = TRUE; | |
621 | ||
622 | switch (e->kind) | |
623 | { | |
624 | ||
625 | case XPR_FOR: | |
626 | // ret = message ("%s %s", | |
627 | forPred = exprData_getPairA (data); | |
628 | forBody = exprData_getPairB (data); | |
629 | ||
630 | //first generate the constraints | |
631 | exprNode_generateConstraints (forPred); | |
632 | exprNode_generateConstraints (forBody); | |
633 | ||
634 | ||
635 | doFor (e, forPred, forBody); | |
636 | ||
637 | break; | |
638 | ||
639 | case XPR_FORPRED: | |
640 | // ret = message ("for (%s; %s; %s)", | |
641 | exprNode_generateConstraints (exprData_getTripleInit (data) ); | |
642 | test = exprData_getTripleTest (data); | |
643 | exprNode_exprTraverse (test,FALSE, FALSE, exprNode_loc(e)); | |
9280addf | 644 | exprNode_generateConstraints (exprData_getTripleInc (data) ); |
645 | ||
616915dd | 646 | if (!exprNode_isError(test) ) |
bb25bea6 | 647 | { |
648 | constraintList temp2; | |
649 | temp2 = test->trueEnsuresConstraints; | |
650 | test->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(test); | |
651 | constraintList_free(temp2); | |
652 | } | |
653 | ||
616915dd | 654 | exprNode_generateConstraints (exprData_getTripleInc (data)); |
655 | break; | |
9280addf | 656 | |
657 | case XPR_WHILE: | |
658 | e1 = exprData_getPairA (data); | |
659 | e2 = exprData_getPairB (data); | |
660 | ||
661 | exprNode_exprTraverse (e1, | |
662 | FALSE, FALSE, exprNode_loc(e1)); | |
663 | ||
664 | exprNode_generateConstraints (e2); | |
665 | ||
666 | e = doWhile (e, e1, e2); | |
667 | ||
668 | break; | |
669 | ||
616915dd | 670 | case XPR_IF: |
671 | DPRINTF(( "IF:") ); | |
672 | DPRINTF ((exprNode_unparse(e) ) ); | |
673 | // ret = message ("if (%s) %s", | |
674 | e1 = exprData_getPairA (data); | |
675 | e2 = exprData_getPairB (data); | |
676 | ||
677 | exprNode_exprTraverse (e1, | |
678 | FALSE, FALSE, exprNode_loc(e1)); | |
679 | ||
680 | exprNode_generateConstraints (e2); | |
616915dd | 681 | e = doIf (e, e1, e2); |
682 | ||
683 | ||
684 | // e->constraints = constraintList_exprNodemerge (exprData_getPairA (data),exprData_getPairB(data)); | |
685 | break; | |
9280addf | 686 | |
687 | ||
616915dd | 688 | case XPR_IFELSE: |
689 | DPRINTF(("Starting IFELSE")); | |
690 | // ret = message ("if (%s) %s else %s", | |
691 | p = exprData_getTriplePred (data); | |
692 | trueBranch = exprData_getTripleTrue (data); | |
693 | falseBranch = exprData_getTripleFalse (data); | |
694 | ||
695 | exprNode_exprTraverse (p, | |
696 | FALSE, FALSE, exprNode_loc(p)); | |
697 | exprNode_generateConstraints (trueBranch); | |
698 | exprNode_generateConstraints (falseBranch); | |
699 | ||
bb25bea6 | 700 | temp = p->ensuresConstraints; |
9280addf | 701 | p->ensuresConstraints = exprNode_traversEnsuresConstraints (p); |
bb25bea6 | 702 | constraintList_free(temp); |
703 | ||
704 | temp = p->requiresConstraints; | |
470b7798 | 705 | p->requiresConstraints = exprNode_traversRequiresConstraints (p); |
bb25bea6 | 706 | constraintList_free(temp); |
707 | ||
708 | temp = p->trueEnsuresConstraints; | |
9280addf | 709 | p->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(p); |
bb25bea6 | 710 | constraintList_free(temp); |
711 | ||
712 | temp = p->falseEnsuresConstraints; | |
470b7798 | 713 | p->falseEnsuresConstraints = exprNode_traversFalseEnsuresConstraints(p); |
bb25bea6 | 714 | constraintList_free(temp); |
616915dd | 715 | |
470b7798 | 716 | e = doIfElse (e, p, trueBranch, falseBranch); |
616915dd | 717 | DPRINTF( ("Done IFELSE") ); |
718 | break; | |
9280addf | 719 | |
616915dd | 720 | case XPR_DOWHILE: |
470b7798 | 721 | |
722 | e2 = (exprData_getPairB (data)); | |
723 | e1 = (exprData_getPairA (data)); | |
724 | ||
725 | DPRINTF((message ("do { %s } while (%s)", exprNode_unparse(e2), exprNode_unparse(e1) ) )); | |
726 | exprNode_generateConstraints (e2); | |
727 | exprNode_generateConstraints (e1); | |
728 | e = exprNode_copyConstraints (e, e2); | |
729 | DPRINTF ((message ("e = %s ", constraintList_print(e->requiresConstraints) ) )); | |
730 | ||
616915dd | 731 | break; |
732 | ||
733 | case XPR_BLOCK: | |
734 | // ret = message ("{ %s }", | |
735 | exprNode_generateConstraints (exprData_getSingle (data)); | |
bb25bea6 | 736 | |
737 | constraintList_free(e->requiresConstraints); | |
616915dd | 738 | e->requiresConstraints = constraintList_copy ( (exprData_getSingle (data))->requiresConstraints ); |
bb25bea6 | 739 | |
740 | constraintList_free(e->ensuresConstraints); | |
616915dd | 741 | e->ensuresConstraints = constraintList_copy ( (exprData_getSingle (data))->ensuresConstraints ); |
742 | // e->constraints = (exprData_getSingle (data))->constraints; | |
743 | break; | |
744 | ||
470b7798 | 745 | case XPR_SWITCH: |
746 | e = doSwitch (e); | |
747 | break; | |
616915dd | 748 | case XPR_STMT: |
749 | case XPR_STMTLIST: | |
84c9ffbf | 750 | exprNode_stmtList (e); |
751 | return ; | |
616915dd | 752 | /*@notreached@*/ |
753 | break; | |
754 | default: | |
755 | ret=FALSE; | |
756 | } | |
84c9ffbf | 757 | return; // ret; |
616915dd | 758 | } |
759 | ||
bb25bea6 | 760 | static bool lltok_isBoolean_Op (lltok tok) |
616915dd | 761 | { |
762 | /*this should really be a switch statement but | |
763 | I don't want to violate the abstraction | |
764 | maybe this should go in lltok.c */ | |
765 | ||
766 | if (lltok_isEq_Op (tok) ) | |
767 | { | |
768 | return TRUE; | |
769 | } | |
770 | if (lltok_isAnd_Op (tok) ) | |
771 | ||
772 | { | |
773 | ||
774 | return TRUE; | |
775 | } | |
776 | if (lltok_isOr_Op (tok) ) | |
777 | { | |
778 | return TRUE; | |
779 | } | |
780 | ||
781 | if (lltok_isGt_Op (tok) ) | |
782 | { | |
783 | return TRUE; | |
784 | } | |
785 | if (lltok_isLt_Op (tok) ) | |
786 | { | |
787 | return TRUE; | |
788 | } | |
789 | ||
790 | if (lltok_isLe_Op (tok) ) | |
791 | { | |
792 | return TRUE; | |
793 | } | |
794 | ||
795 | if (lltok_isGe_Op (tok) ) | |
796 | { | |
797 | return TRUE; | |
798 | } | |
799 | ||
800 | return FALSE; | |
801 | ||
802 | } | |
803 | ||
804 | ||
28bf4b0b | 805 | static void exprNode_booleanTraverse (/*@dependent@*/ exprNode e, /*@unused@*/ bool definatelv, /*@unused@*/ bool definaterv, fileloc sequencePoint) |
616915dd | 806 | { |
807 | constraint cons; | |
808 | exprNode t1, t2; | |
809 | exprData data; | |
810 | lltok tok; | |
bb25bea6 | 811 | constraintList tempList, temp; |
616915dd | 812 | data = e->edata; |
813 | ||
814 | tok = exprData_getOpTok (data); | |
815 | ||
816 | ||
817 | t1 = exprData_getOpA (data); | |
818 | t2 = exprData_getOpB (data); | |
819 | ||
820 | ||
920a3797 | 821 | tempList = constraintList_undefined; |
822 | ||
616915dd | 823 | /* arithmetic tests */ |
824 | ||
825 | if (lltok_isEq_Op (tok) ) | |
826 | { | |
827 | cons = constraint_makeEnsureEqual (t1, t2, sequencePoint); | |
828 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); | |
829 | } | |
830 | ||
831 | ||
832 | if (lltok_isLt_Op (tok) ) | |
833 | { | |
834 | cons = constraint_makeEnsureLessThan (t1, t2, sequencePoint); | |
835 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); | |
836 | cons = constraint_makeEnsureGreaterThanEqual (t1, t2, sequencePoint); | |
837 | e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons); | |
838 | } | |
839 | ||
840 | ||
841 | if (lltok_isGe_Op (tok) ) | |
842 | { | |
843 | ||
844 | cons = constraint_makeEnsureGreaterThanEqual (t1, t2, sequencePoint); | |
845 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); | |
846 | ||
847 | cons = constraint_makeEnsureLessThan (t1, t2, sequencePoint); | |
848 | e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons); | |
849 | ||
850 | } | |
851 | ||
852 | ||
853 | if (lltok_isGt_Op (tok) ) | |
854 | { | |
855 | cons = constraint_makeEnsureGreaterThan (t1, t2, sequencePoint); | |
856 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); | |
857 | cons = constraint_makeEnsureLessThanEqual (t1, t2, sequencePoint); | |
858 | e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons); | |
859 | } | |
860 | ||
861 | if (lltok_isLe_Op (tok) ) | |
862 | { | |
863 | cons = constraint_makeEnsureLessThanEqual (t1, t2, sequencePoint); | |
864 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); | |
865 | ||
866 | cons = constraint_makeEnsureGreaterThan (t1, t2, sequencePoint); | |
867 | e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons); | |
868 | } | |
869 | ||
870 | ||
871 | ||
872 | /*Logical operations */ | |
873 | ||
920a3797 | 874 | |
616915dd | 875 | if (lltok_isAnd_Op (tok) ) |
876 | ||
877 | { | |
878 | //true ensures | |
879 | tempList = constraintList_copy (t1->trueEnsuresConstraints); | |
880 | tempList = constraintList_addList (tempList, t2->trueEnsuresConstraints); | |
4ab867d6 | 881 | e->trueEnsuresConstraints = constraintList_addListFree(e->trueEnsuresConstraints, tempList); |
616915dd | 882 | |
883 | //false ensures: fens t1 or tens t1 and fens t2 | |
884 | tempList = constraintList_copy (t1->trueEnsuresConstraints); | |
885 | tempList = constraintList_addList (tempList, t2->falseEnsuresConstraints); | |
bb25bea6 | 886 | temp = tempList; |
616915dd | 887 | tempList = constraintList_logicalOr (tempList, t1->falseEnsuresConstraints); |
bb25bea6 | 888 | constraintList_free(temp); |
889 | ||
616915dd | 890 | e->falseEnsuresConstraints =constraintList_addList(e->falseEnsuresConstraints, tempList); |
891 | ||
892 | } | |
84c9ffbf | 893 | else if (lltok_isOr_Op (tok) ) |
894 | { | |
616915dd | 895 | //false ensures |
896 | tempList = constraintList_copy (t1->falseEnsuresConstraints); | |
897 | tempList = constraintList_addList (tempList, t2->falseEnsuresConstraints); | |
4ab867d6 | 898 | e->falseEnsuresConstraints = constraintList_addListFree(e->falseEnsuresConstraints, tempList); |
616915dd | 899 | |
900 | //true ensures: tens t1 or fens t1 and tens t2 | |
901 | tempList = constraintList_copy (t1->falseEnsuresConstraints); | |
902 | tempList = constraintList_addList (tempList, t2->trueEnsuresConstraints); | |
bb25bea6 | 903 | |
904 | temp = tempList; | |
616915dd | 905 | tempList = constraintList_logicalOr (tempList, t1->trueEnsuresConstraints); |
bb25bea6 | 906 | constraintList_free(temp); |
907 | ||
908 | ||
4ab867d6 | 909 | e->trueEnsuresConstraints =constraintList_addListFree(e->trueEnsuresConstraints, tempList); |
920a3797 | 910 | tempList = constraintList_undefined; |
911 | ||
616915dd | 912 | |
913 | } | |
84c9ffbf | 914 | else |
915 | { | |
916 | DPRINTF((message("%s is not a boolean operation", lltok_unparse(tok) ) )); | |
917 | } | |
616915dd | 918 | |
919 | } | |
920 | ||
28bf4b0b | 921 | void exprNode_exprTraverse (exprNode e, bool definatelv, bool definaterv, /*@observer@*/ /*@temp@*/ fileloc sequencePoint) |
616915dd | 922 | { |
9280addf | 923 | exprNode t1, t2, fcn; |
616915dd | 924 | lltok tok; |
925 | bool handledExprNode; | |
926 | exprData data; | |
927 | constraint cons; | |
928 | ||
bb25bea6 | 929 | constraintList temp; |
930 | ||
470b7798 | 931 | if (exprNode_isError(e) ) |
932 | { | |
84c9ffbf | 933 | return; // FALSE; |
470b7798 | 934 | } |
935 | ||
936 | DPRINTF((message ("exprNode_exprTraverset Analysising %s %s at", exprNode_unparse( e), | |
616915dd | 937 | fileloc_unparse(exprNode_getfileloc(e) ) ) ) ); |
470b7798 | 938 | |
bb25bea6 | 939 | /*e->requiresConstraints = constraintList_makeNew(); |
c3e695ff | 940 | e->ensuresConstraints = constraintList_makeNew(); |
941 | e->trueEnsuresConstraints = constraintList_makeNew();; | |
942 | e->falseEnsuresConstraints = constraintList_makeNew();; | |
bb25bea6 | 943 | */ |
470b7798 | 944 | if (exprNode_isUnhandled (e) ) |
616915dd | 945 | { |
84c9ffbf | 946 | return; // FALSE; |
616915dd | 947 | } |
948 | // e = makeDataTypeConstraints (e); | |
949 | ||
950 | handledExprNode = TRUE; | |
951 | ||
952 | data = e->edata; | |
953 | ||
954 | switch (e->kind) | |
955 | { | |
616915dd | 956 | case XPR_WHILEPRED: |
957 | t1 = exprData_getSingle (data); | |
958 | exprNode_exprTraverse (t1, definatelv, definaterv, sequencePoint); | |
959 | e = exprNode_copyConstraints (e, t1); | |
960 | break; | |
961 | ||
962 | case XPR_FETCH: | |
963 | ||
964 | if (definatelv ) | |
965 | { | |
966 | t1 = (exprData_getPairA (data) ); | |
967 | t2 = (exprData_getPairB (data) ); | |
968 | cons = constraint_makeWriteSafeExprNode (t1, t2); | |
969 | } | |
970 | else | |
971 | { | |
972 | t1 = (exprData_getPairA (data) ); | |
973 | t2 = (exprData_getPairB (data) ); | |
974 | cons = constraint_makeReadSafeExprNode (t1, t2 ); | |
975 | } | |
976 | ||
977 | e->requiresConstraints = constraintList_add(e->requiresConstraints, cons); | |
978 | cons = constraint_makeEnsureMaxReadAtLeast (t1, t2, sequencePoint); | |
979 | e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
980 | ||
9280addf | 981 | cons = constraint_makeEnsureLteMaxRead (t2, t1); |
616915dd | 982 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); |
983 | ||
984 | // cons = constraint_makeEnsureMinReadAtMost (t1, t2, sequencePoint); | |
985 | // e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
d46ce6a4 | 986 | |
616915dd | 987 | exprNode_exprTraverse (exprData_getPairA (data), FALSE, TRUE, sequencePoint); |
988 | exprNode_exprTraverse (exprData_getPairB (data), FALSE, TRUE, sequencePoint); | |
989 | ||
990 | /*@i325 Should check which is array/index. */ | |
991 | break; | |
992 | ||
993 | case XPR_PARENS: | |
994 | exprNode_exprTraverse (exprData_getUopNode (e->edata), definatelv, definaterv, sequencePoint); | |
995 | // e->constraints = constraintList_exprNodemerge (exprData_getUopNode (e->edata), exprNode_undefined); | |
996 | break; | |
997 | case XPR_INIT: | |
920a3797 | 998 | { |
999 | /* | |
1000 | idDecl t; | |
1001 | ||
1002 | uentry ue; | |
1003 | exprNode lhs; | |
1004 | ||
1005 | t = exprData_getInitId (data); | |
1006 | ue = usymtab_lookup (idDecl_observeId (t)); | |
1007 | lhs = exprNode_createId (ue); | |
1008 | */ | |
1009 | t2 = exprData_getInitNode (data); | |
1010 | ||
1011 | /* DPRINTF(( (message("initialization: %s = %s", | |
1012 | exprNode_unparse(lhs), | |
1013 | exprNode_unparse(t2) | |
1014 | ) | |
1015 | ) )); */ | |
1016 | ||
1017 | //exprNode_exprTraverse (t1, TRUE, FALSE, sequencePoint ); | |
1018 | ||
1019 | exprNode_exprTraverse (t2, definatelv, TRUE, sequencePoint ); | |
1020 | ||
1021 | /* this test is nessecary because some expressions generate a null expression node. function pointer do that -- drl */ | |
616915dd | 1022 | if ( (!exprNode_isError (e)) && (!exprNode_isError(t2)) ) |
920a3797 | 1023 | { |
1024 | cons = constraint_makeEnsureEqual (e, t2, sequencePoint); | |
1025 | e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
1026 | } | |
1027 | } | |
616915dd | 1028 | |
1029 | break; | |
1030 | case XPR_ASSIGN: | |
1031 | t1 = exprData_getOpA (data); | |
1032 | t2 = exprData_getOpB (data); | |
1033 | exprNode_exprTraverse (t1, TRUE, definaterv, sequencePoint ); | |
84c9ffbf | 1034 | //lltok_unparse (exprData_getOpTok (data)); |
920a3797 | 1035 | |
616915dd | 1036 | exprNode_exprTraverse (t2, definatelv, TRUE, sequencePoint ); |
1037 | ||
1038 | /* this test is nessecary because some expressions generate a null expression node. function pointer do that -- drl */ | |
1039 | if ( (!exprNode_isError (t1)) && (!exprNode_isError(t2)) ) | |
1040 | { | |
1041 | cons = constraint_makeEnsureEqual (t1, t2, sequencePoint); | |
1042 | e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
1043 | } | |
1044 | break; | |
1045 | case XPR_OP: | |
1046 | t1 = exprData_getOpA (data); | |
1047 | t2 = exprData_getOpB (data); | |
616915dd | 1048 | tok = exprData_getOpTok (data); |
2934b455 | 1049 | |
920a3797 | 1050 | |
2934b455 | 1051 | if (tok.tok == ADD_ASSIGN) |
1052 | { | |
920a3797 | 1053 | exprNode_exprTraverse (t1, TRUE, definaterv, sequencePoint ); |
1054 | exprNode_exprTraverse (t2, definatelv, TRUE, sequencePoint ); | |
1055 | ||
2934b455 | 1056 | cons = constraint_makeAddAssign (t1, t2, sequencePoint ); |
1057 | e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
1058 | } | |
920a3797 | 1059 | else if (tok.tok == SUB_ASSIGN) |
2934b455 | 1060 | { |
920a3797 | 1061 | exprNode_exprTraverse (t1, TRUE, definaterv, sequencePoint ); |
1062 | exprNode_exprTraverse (t2, definatelv, TRUE, sequencePoint ); | |
1063 | ||
2934b455 | 1064 | cons = constraint_makeSubtractAssign (t1, t2, sequencePoint ); |
1065 | e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
1066 | } | |
920a3797 | 1067 | else |
1068 | { | |
1069 | exprNode_exprTraverse (t1, definatelv, definaterv, sequencePoint ); | |
1070 | exprNode_exprTraverse (t2, definatelv, definaterv, sequencePoint ); | |
1071 | } | |
2934b455 | 1072 | |
616915dd | 1073 | if (lltok_isBoolean_Op (tok) ) |
1074 | exprNode_booleanTraverse (e, definatelv, definaterv, sequencePoint); | |
1075 | ||
1076 | // e->constraints = constraintList_exprNodemerge (exprData_getOpA (data), exprData_getOpB (data)); | |
1077 | break; | |
1078 | case XPR_SIZEOFT: | |
28bf4b0b | 1079 | //drl possible problem : warning make sure the case can be ignored.. |
616915dd | 1080 | |
1081 | break; | |
1082 | ||
1083 | case XPR_SIZEOF: | |
1084 | exprNode_exprTraverse (exprData_getSingle (data), definatelv, definaterv, sequencePoint ); | |
1085 | // e->constraints = constraintList_exprNodemerge (exprData_getSingle (e->edata), exprNode_undefined); | |
1086 | break; | |
1087 | ||
1088 | case XPR_CALL: | |
9280addf | 1089 | fcn = exprData_getFcn(data); |
1090 | ||
1091 | exprNode_exprTraverse (fcn, definatelv, definaterv, sequencePoint ); | |
9280addf | 1092 | DPRINTF ( (message ("Got call that %s ( %s) ", exprNode_unparse(fcn), exprNodeList_unparse (exprData_getArgs (data) ) ) ) ); |
616915dd | 1093 | |
4ab867d6 | 1094 | fcn->requiresConstraints = constraintList_addListFree (fcn->requiresConstraints, |
9280addf | 1095 | checkCall (fcn, exprData_getArgs (data) ) ); |
616915dd | 1096 | |
4ab867d6 | 1097 | fcn->ensuresConstraints = constraintList_addListFree (fcn->ensuresConstraints, |
28bf4b0b | 1098 | exprNode_getPostConditions(fcn, exprData_getArgs (data),e ) ); |
9280addf | 1099 | |
1100 | t1 = exprNode_createNew (exprNode_getType (e) ); | |
1101 | ||
1102 | checkArgumentList (t1, exprData_getArgs(data), sequencePoint); | |
616915dd | 1103 | |
9280addf | 1104 | |
28bf4b0b | 1105 | exprNode_mergeResolve (e, t1, fcn); |
920a3797 | 1106 | |
1107 | exprNode_free(t1); | |
9280addf | 1108 | |
616915dd | 1109 | // e->constraints = constraintList_add (e->constraints, constraint_create (e,exprNode_undefined, GT, CALLSAFE ) ); |
920a3797 | 1110 | |
616915dd | 1111 | break; |
1112 | ||
1113 | case XPR_RETURN: | |
1114 | exprNode_exprTraverse (exprData_getSingle (data), definatelv, definaterv, sequencePoint ); | |
1115 | break; | |
1116 | ||
1117 | case XPR_NULLRETURN: | |
84c9ffbf | 1118 | |
616915dd | 1119 | break; |
1120 | ||
1121 | ||
1122 | case XPR_FACCESS: | |
1123 | exprNode_exprTraverse (exprData_getFieldNode (data), definatelv, definaterv, sequencePoint ); | |
616915dd | 1124 | break; |
1125 | ||
1126 | case XPR_ARROW: | |
1127 | exprNode_exprTraverse (exprData_getFieldNode (data), definatelv, definaterv, sequencePoint ); | |
616915dd | 1128 | break; |
1129 | ||
1130 | case XPR_STRINGLITERAL: | |
84c9ffbf | 1131 | |
616915dd | 1132 | break; |
1133 | ||
1134 | case XPR_NUMLIT: | |
84c9ffbf | 1135 | |
616915dd | 1136 | break; |
1137 | ||
1138 | case XPR_PREOP: | |
1139 | t1 = exprData_getUopNode(data); | |
1140 | tok = (exprData_getUopTok (data)); | |
1141 | //lltok_unparse (exprData_getUopTok (data)); | |
1142 | exprNode_exprTraverse (t1, definatelv, definaterv, sequencePoint ); | |
1143 | /*handle * pointer access */ | |
1144 | if (lltok_isInc_Op (tok) ) | |
1145 | { | |
1146 | DPRINTF(("doing ++(var)")); | |
1147 | t1 = exprData_getUopNode (data); | |
1148 | cons = constraint_makeMaxSetSideEffectPostIncrement (t1, sequencePoint ); | |
1149 | e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons); | |
1150 | } | |
1151 | else if (lltok_isDec_Op (tok) ) | |
1152 | { | |
1153 | DPRINTF(("doing --(var)")); | |
1154 | t1 = exprData_getUopNode (data); | |
1155 | cons = constraint_makeMaxSetSideEffectPostDecrement (t1, sequencePoint ); | |
1156 | e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons); | |
1157 | } | |
84c9ffbf | 1158 | else if (lltok_isMult( tok ) ) |
616915dd | 1159 | { |
1160 | if (definatelv) | |
1161 | { | |
1162 | cons = constraint_makeWriteSafeInt (t1, 0); | |
1163 | } | |
1164 | else | |
1165 | { | |
1166 | cons = constraint_makeReadSafeInt (t1, 0); | |
1167 | } | |
1168 | e->requiresConstraints = constraintList_add(e->requiresConstraints, cons); | |
1169 | } | |
84c9ffbf | 1170 | else if (lltok_isNot_Op (tok) ) |
1171 | /* ! expr */ | |
616915dd | 1172 | { |
bb25bea6 | 1173 | constraintList_free(e->trueEnsuresConstraints); |
1174 | ||
616915dd | 1175 | e->trueEnsuresConstraints = constraintList_copy (t1->falseEnsuresConstraints); |
bb25bea6 | 1176 | constraintList_free(e->falseEnsuresConstraints); |
616915dd | 1177 | e->falseEnsuresConstraints = constraintList_copy (t1->trueEnsuresConstraints); |
1178 | } | |
bb25bea6 | 1179 | |
84c9ffbf | 1180 | else if (lltok_isAmpersand_Op (tok) ) |
1181 | { | |
1182 | break; | |
1183 | } | |
bb25bea6 | 1184 | else if (lltok_isMinus_Op (tok) ) |
1185 | { | |
1186 | break; | |
1187 | } | |
4ab867d6 | 1188 | else if ( lltok_isExcl_Op (tok) ) |
1189 | { | |
1190 | break; | |
1191 | } | |
1192 | else if (lltok_isTilde_Op (tok) ) | |
1193 | { | |
1194 | break; | |
1195 | } | |
84c9ffbf | 1196 | else |
1197 | { | |
1198 | llcontbug((message("Unsupported preop in %s", exprNode_unparse(e) ) )); | |
1199 | BADEXIT; | |
1200 | } | |
616915dd | 1201 | break; |
1202 | ||
1203 | case XPR_POSTOP: | |
1204 | ||
1205 | exprNode_exprTraverse (exprData_getUopNode (data), TRUE, definaterv, sequencePoint ); | |
84c9ffbf | 1206 | |
616915dd | 1207 | if (lltok_isInc_Op (exprData_getUopTok (data) ) ) |
1208 | { | |
1209 | DPRINTF(("doing ++")); | |
1210 | t1 = exprData_getUopNode (data); | |
1211 | cons = constraint_makeMaxSetSideEffectPostIncrement (t1, sequencePoint ); | |
1212 | e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons); | |
1213 | } | |
1214 | if (lltok_isDec_Op (exprData_getUopTok (data) ) ) | |
1215 | { | |
1216 | DPRINTF(("doing --")); | |
1217 | t1 = exprData_getUopNode (data); | |
1218 | cons = constraint_makeMaxSetSideEffectPostDecrement (t1, sequencePoint ); | |
1219 | e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons); | |
1220 | } | |
1221 | break; | |
470b7798 | 1222 | case XPR_CAST: |
920a3797 | 1223 | { |
1224 | t2 = exprData_getCastNode (data); | |
1225 | DPRINTF (( message ("Examining cast (%q)%s", | |
1226 | qtype_unparse (exprData_getCastType (data)), | |
1227 | exprNode_unparse (t2) ) | |
1228 | )); | |
1229 | exprNode_exprTraverse (t2, definatelv, definaterv, sequencePoint ); | |
1230 | } | |
470b7798 | 1231 | break; |
920a3797 | 1232 | |
470b7798 | 1233 | case XPR_COND: |
1234 | { | |
28bf4b0b | 1235 | exprNode pred, trueBranch, falseBranch; |
470b7798 | 1236 | llassert(FALSE); |
1237 | pred = exprData_getTriplePred (data); | |
28bf4b0b | 1238 | trueBranch = exprData_getTripleTrue (data); |
1239 | falseBranch = exprData_getTripleFalse (data); | |
470b7798 | 1240 | |
1241 | exprNode_exprTraverse (pred, FALSE, TRUE, sequencePoint ); | |
bb25bea6 | 1242 | |
1243 | temp = pred->ensuresConstraints; | |
470b7798 | 1244 | pred->ensuresConstraints = exprNode_traversEnsuresConstraints(pred); |
bb25bea6 | 1245 | constraintList_free(temp); |
1246 | ||
1247 | temp = pred->requiresConstraints; | |
470b7798 | 1248 | pred->requiresConstraints = exprNode_traversRequiresConstraints(pred); |
bb25bea6 | 1249 | constraintList_free(temp); |
470b7798 | 1250 | |
bb25bea6 | 1251 | temp = pred->trueEnsuresConstraints; |
470b7798 | 1252 | pred->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(pred); |
bb25bea6 | 1253 | constraintList_free(temp); |
1254 | ||
1255 | temp = pred->falseEnsuresConstraints; | |
470b7798 | 1256 | pred->falseEnsuresConstraints = exprNode_traversFalseEnsuresConstraints(pred); |
bb25bea6 | 1257 | constraintList_free(temp); |
1258 | ||
470b7798 | 1259 | |
28bf4b0b | 1260 | exprNode_exprTraverse (trueBranch, FALSE, TRUE, sequencePoint ); |
bb25bea6 | 1261 | |
28bf4b0b | 1262 | temp = trueBranch->ensuresConstraints; |
1263 | trueBranch->ensuresConstraints = exprNode_traversEnsuresConstraints(trueBranch); | |
bb25bea6 | 1264 | constraintList_free(temp); |
1265 | ||
1266 | ||
28bf4b0b | 1267 | temp = trueBranch->requiresConstraints; |
1268 | trueBranch->requiresConstraints = exprNode_traversRequiresConstraints(trueBranch); | |
bb25bea6 | 1269 | constraintList_free(temp); |
1270 | ||
470b7798 | 1271 | |
28bf4b0b | 1272 | temp = trueBranch->trueEnsuresConstraints; |
1273 | trueBranch->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(trueBranch); | |
bb25bea6 | 1274 | constraintList_free(temp); |
1275 | ||
28bf4b0b | 1276 | temp = trueBranch->falseEnsuresConstraints; |
1277 | trueBranch->falseEnsuresConstraints = exprNode_traversFalseEnsuresConstraints(trueBranch); | |
bb25bea6 | 1278 | constraintList_free(temp); |
470b7798 | 1279 | |
bb25bea6 | 1280 | //dfdf |
28bf4b0b | 1281 | exprNode_exprTraverse (falseBranch, FALSE, TRUE, sequencePoint ); |
bb25bea6 | 1282 | |
28bf4b0b | 1283 | temp = falseBranch->ensuresConstraints; |
1284 | falseBranch->ensuresConstraints = exprNode_traversEnsuresConstraints(falseBranch); | |
bb25bea6 | 1285 | constraintList_free(temp); |
1286 | ||
1287 | ||
28bf4b0b | 1288 | temp = falseBranch->requiresConstraints; |
1289 | falseBranch->requiresConstraints = exprNode_traversRequiresConstraints(falseBranch); | |
bb25bea6 | 1290 | constraintList_free(temp); |
1291 | ||
470b7798 | 1292 | |
28bf4b0b | 1293 | temp = falseBranch->trueEnsuresConstraints; |
1294 | falseBranch->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(falseBranch); | |
bb25bea6 | 1295 | constraintList_free(temp); |
470b7798 | 1296 | |
28bf4b0b | 1297 | temp = falseBranch->falseEnsuresConstraints; |
1298 | falseBranch->falseEnsuresConstraints = exprNode_traversFalseEnsuresConstraints(falseBranch); | |
bb25bea6 | 1299 | constraintList_free(temp); |
470b7798 | 1300 | |
1301 | /* if pred is true e equals true otherwise pred equals false */ | |
1302 | ||
28bf4b0b | 1303 | cons = constraint_makeEnsureEqual (e, trueBranch, sequencePoint); |
1304 | trueBranch->ensuresConstraints = constraintList_add(trueBranch->ensuresConstraints, cons); | |
470b7798 | 1305 | |
28bf4b0b | 1306 | cons = constraint_makeEnsureEqual (e, trueBranch, sequencePoint); |
1307 | falseBranch->ensuresConstraints = constraintList_add(falseBranch->ensuresConstraints, cons); | |
470b7798 | 1308 | |
28bf4b0b | 1309 | e = doIfElse (e, pred, trueBranch, falseBranch); |
470b7798 | 1310 | |
1311 | } | |
1312 | break; | |
1313 | case XPR_COMMA: | |
1314 | llassert(FALSE); | |
1315 | t1 = exprData_getPairA (data); | |
1316 | t2 = exprData_getPairB (data); | |
1317 | /* we essiantially treat this like expr1; expr2 | |
1318 | of course sequencePoint isn't adjusted so this isn't completely accurate | |
1319 | problems../ */ | |
1320 | exprNode_exprTraverse (t1, FALSE, FALSE, sequencePoint ); | |
1321 | exprNode_exprTraverse (t2, definatelv, definaterv, sequencePoint ); | |
28bf4b0b | 1322 | exprNode_mergeResolve (e, t1, t2); |
470b7798 | 1323 | break; |
920a3797 | 1324 | |
616915dd | 1325 | default: |
1326 | handledExprNode = FALSE; | |
1327 | } | |
1328 | ||
1329 | e->requiresConstraints = constraintList_preserveOrig ( e->requiresConstraints); | |
1330 | e->ensuresConstraints = constraintList_preserveOrig ( e->ensuresConstraints); | |
9280addf | 1331 | e->requiresConstraints = constraintList_addGeneratingExpr ( e->requiresConstraints, e); |
1332 | ||
1333 | e->ensuresConstraints = constraintList_addGeneratingExpr ( e->ensuresConstraints, e); | |
1334 | ||
d46ce6a4 | 1335 | DPRINTF((message ("ensures constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->ensuresConstraints) ) )); |
1336 | ||
1337 | DPRINTF((message ("Requires constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->ensuresConstraints) ) )); | |
616915dd | 1338 | |
bb25bea6 | 1339 | DPRINTF((message ("trueEnsures constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->trueEnsuresConstraints) ) )); |
1340 | ||
1341 | DPRINTF((message ("falseEnsures constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->falseEnsuresConstraints) ) )); | |
1342 | ||
84c9ffbf | 1343 | return; // handledExprNode; |
616915dd | 1344 | } |
1345 | ||
1346 | ||
1347 | constraintList exprNode_traversTrueEnsuresConstraints (exprNode e) | |
1348 | { | |
470b7798 | 1349 | exprNode t1; |
616915dd | 1350 | |
1351 | bool handledExprNode; | |
1352 | // char * mes; | |
1353 | exprData data; | |
1354 | constraintList ret; | |
1355 | ||
1356 | if (exprNode_handleError (e)) | |
1357 | { | |
c3e695ff | 1358 | ret = constraintList_makeNew(); |
616915dd | 1359 | return ret; |
1360 | } | |
1361 | ret = constraintList_copy (e->trueEnsuresConstraints ); | |
1362 | ||
1363 | handledExprNode = TRUE; | |
1364 | ||
1365 | data = e->edata; | |
1366 | ||
1367 | switch (e->kind) | |
1368 | { | |
9280addf | 1369 | case XPR_WHILEPRED: |
1370 | t1 = exprData_getSingle (data); | |
4ab867d6 | 1371 | ret = constraintList_addListFree ( ret, exprNode_traversTrueEnsuresConstraints (t1) ); |
9280addf | 1372 | break; |
616915dd | 1373 | |
1374 | case XPR_FETCH: | |
1375 | ||
4ab867d6 | 1376 | ret = constraintList_addListFree (ret, |
616915dd | 1377 | exprNode_traversTrueEnsuresConstraints |
1378 | (exprData_getPairA (data) ) ); | |
1379 | ||
4ab867d6 | 1380 | ret = constraintList_addListFree (ret, |
616915dd | 1381 | exprNode_traversTrueEnsuresConstraints |
1382 | (exprData_getPairB (data) ) ); | |
1383 | break; | |
1384 | case XPR_PREOP: | |
1385 | ||
4ab867d6 | 1386 | ret = constraintList_addListFree (ret, |
616915dd | 1387 | exprNode_traversTrueEnsuresConstraints |
1388 | (exprData_getUopNode (data) ) ); | |
1389 | break; | |
1390 | ||
1391 | case XPR_PARENS: | |
4ab867d6 | 1392 | ret = constraintList_addListFree (ret, exprNode_traversTrueEnsuresConstraints |
616915dd | 1393 | (exprData_getUopNode (data) ) ); |
1394 | break; | |
1395 | case XPR_ASSIGN: | |
4ab867d6 | 1396 | ret = constraintList_addListFree (ret, |
616915dd | 1397 | exprNode_traversTrueEnsuresConstraints |
1398 | (exprData_getOpA (data) ) ); | |
1399 | ||
4ab867d6 | 1400 | ret = constraintList_addListFree (ret, |
616915dd | 1401 | exprNode_traversTrueEnsuresConstraints |
1402 | (exprData_getOpB (data) ) ); | |
1403 | break; | |
1404 | case XPR_OP: | |
4ab867d6 | 1405 | ret = constraintList_addListFree (ret, |
616915dd | 1406 | exprNode_traversTrueEnsuresConstraints |
1407 | (exprData_getOpA (data) ) ); | |
1408 | ||
4ab867d6 | 1409 | ret = constraintList_addListFree (ret, |
616915dd | 1410 | exprNode_traversTrueEnsuresConstraints |
1411 | (exprData_getOpB (data) ) ); | |
1412 | break; | |
1413 | case XPR_SIZEOFT: | |
1414 | ||
1415 | // ctype_unparse (qtype_getType (exprData_getType (data) ) ); | |
1416 | ||
1417 | break; | |
1418 | ||
1419 | case XPR_SIZEOF: | |
1420 | ||
4ab867d6 | 1421 | ret = constraintList_addListFree (ret, |
1422 | exprNode_traversTrueEnsuresConstraints | |
1423 | (exprData_getSingle (data) ) ); | |
616915dd | 1424 | break; |
1425 | ||
1426 | case XPR_CALL: | |
4ab867d6 | 1427 | ret = constraintList_addListFree (ret, |
616915dd | 1428 | exprNode_traversTrueEnsuresConstraints |
1429 | (exprData_getFcn (data) ) ); | |
1430 | /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) ); | |
1431 | break; | |
1432 | ||
1433 | case XPR_RETURN: | |
4ab867d6 | 1434 | ret = constraintList_addListFree (ret, |
616915dd | 1435 | exprNode_traversTrueEnsuresConstraints |
1436 | (exprData_getSingle (data) ) ); | |
1437 | break; | |
1438 | ||
1439 | case XPR_NULLRETURN: | |
1440 | // cstring_makeLiteral ("return");; | |
1441 | break; | |
1442 | ||
1443 | case XPR_FACCESS: | |
4ab867d6 | 1444 | ret = constraintList_addListFree (ret, |
616915dd | 1445 | exprNode_traversTrueEnsuresConstraints |
1446 | (exprData_getFieldNode (data) ) ); | |
1447 | //exprData_getFieldName (data) ; | |
1448 | break; | |
1449 | ||
1450 | case XPR_ARROW: | |
4ab867d6 | 1451 | ret = constraintList_addListFree (ret, |
616915dd | 1452 | exprNode_traversTrueEnsuresConstraints |
1453 | (exprData_getFieldNode (data) ) ); | |
1454 | // exprData_getFieldName (data); | |
1455 | break; | |
1456 | ||
1457 | case XPR_STRINGLITERAL: | |
1458 | // cstring_copy (exprData_getLiteral (data)); | |
1459 | break; | |
1460 | ||
1461 | case XPR_NUMLIT: | |
1462 | // cstring_copy (exprData_getLiteral (data)); | |
1463 | break; | |
1464 | case XPR_POSTOP: | |
1465 | ||
4ab867d6 | 1466 | ret = constraintList_addListFree (ret, |
616915dd | 1467 | exprNode_traversTrueEnsuresConstraints |
1468 | (exprData_getUopNode (data) ) ); | |
1469 | break; | |
470b7798 | 1470 | |
1471 | case XPR_CAST: | |
1472 | ||
4ab867d6 | 1473 | ret = constraintList_addListFree (ret, |
470b7798 | 1474 | exprNode_traversTrueEnsuresConstraints |
1475 | (exprData_getCastNode (data) ) ); | |
470b7798 | 1476 | break; |
84c9ffbf | 1477 | |
616915dd | 1478 | default: |
1479 | break; | |
1480 | } | |
1481 | ||
1482 | return ret; | |
1483 | } | |
1484 | ||
9280addf | 1485 | constraintList exprNode_traversFalseEnsuresConstraints (exprNode e) |
1486 | { | |
470b7798 | 1487 | exprNode t1; |
9280addf | 1488 | |
1489 | bool handledExprNode; | |
1490 | // char * mes; | |
1491 | exprData data; | |
1492 | constraintList ret; | |
1493 | ||
1494 | if (exprNode_handleError (e)) | |
1495 | { | |
c3e695ff | 1496 | ret = constraintList_makeNew(); |
9280addf | 1497 | return ret; |
1498 | } | |
1499 | ret = constraintList_copy (e->falseEnsuresConstraints ); | |
1500 | ||
1501 | handledExprNode = TRUE; | |
1502 | ||
1503 | data = e->edata; | |
1504 | ||
1505 | switch (e->kind) | |
1506 | { | |
1507 | case XPR_WHILEPRED: | |
1508 | t1 = exprData_getSingle (data); | |
4ab867d6 | 1509 | ret = constraintList_addListFree ( ret,exprNode_traversFalseEnsuresConstraints (t1) ); |
9280addf | 1510 | break; |
1511 | ||
1512 | case XPR_FETCH: | |
1513 | ||
4ab867d6 | 1514 | ret = constraintList_addListFree (ret, |
9280addf | 1515 | exprNode_traversFalseEnsuresConstraints |
1516 | (exprData_getPairA (data) ) ); | |
1517 | ||
4ab867d6 | 1518 | ret = constraintList_addListFree (ret, |
9280addf | 1519 | exprNode_traversFalseEnsuresConstraints |
1520 | (exprData_getPairB (data) ) ); | |
1521 | break; | |
1522 | case XPR_PREOP: | |
1523 | ||
4ab867d6 | 1524 | ret = constraintList_addListFree (ret, |
9280addf | 1525 | exprNode_traversFalseEnsuresConstraints |
1526 | (exprData_getUopNode (data) ) ); | |
1527 | break; | |
1528 | ||
1529 | case XPR_PARENS: | |
4ab867d6 | 1530 | ret = constraintList_addListFree (ret, exprNode_traversFalseEnsuresConstraints |
9280addf | 1531 | (exprData_getUopNode (data) ) ); |
1532 | break; | |
1533 | case XPR_ASSIGN: | |
4ab867d6 | 1534 | ret = constraintList_addListFree (ret, |
9280addf | 1535 | exprNode_traversFalseEnsuresConstraints |
1536 | (exprData_getOpA (data) ) ); | |
1537 | ||
4ab867d6 | 1538 | ret = constraintList_addListFree (ret, |
9280addf | 1539 | exprNode_traversFalseEnsuresConstraints |
1540 | (exprData_getOpB (data) ) ); | |
1541 | break; | |
1542 | case XPR_OP: | |
4ab867d6 | 1543 | ret = constraintList_addListFree (ret, |
9280addf | 1544 | exprNode_traversFalseEnsuresConstraints |
1545 | (exprData_getOpA (data) ) ); | |
1546 | ||
4ab867d6 | 1547 | ret = constraintList_addListFree (ret, |
9280addf | 1548 | exprNode_traversFalseEnsuresConstraints |
1549 | (exprData_getOpB (data) ) ); | |
1550 | break; | |
1551 | case XPR_SIZEOFT: | |
1552 | ||
1553 | // ctype_unparse (qtype_getType (exprData_getType (data) ) ); | |
1554 | ||
1555 | break; | |
1556 | ||
1557 | case XPR_SIZEOF: | |
1558 | ||
4ab867d6 | 1559 | ret = constraintList_addListFree (ret, |
9280addf | 1560 | exprNode_traversFalseEnsuresConstraints |
1561 | (exprData_getSingle (data) ) ); | |
1562 | break; | |
1563 | ||
1564 | case XPR_CALL: | |
4ab867d6 | 1565 | ret = constraintList_addListFree (ret, |
9280addf | 1566 | exprNode_traversFalseEnsuresConstraints |
1567 | (exprData_getFcn (data) ) ); | |
1568 | /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) ); | |
1569 | break; | |
1570 | ||
1571 | case XPR_RETURN: | |
4ab867d6 | 1572 | ret = constraintList_addListFree (ret, |
9280addf | 1573 | exprNode_traversFalseEnsuresConstraints |
1574 | (exprData_getSingle (data) ) ); | |
1575 | break; | |
1576 | ||
1577 | case XPR_NULLRETURN: | |
1578 | // cstring_makeLiteral ("return");; | |
1579 | break; | |
1580 | ||
1581 | case XPR_FACCESS: | |
4ab867d6 | 1582 | ret = constraintList_addListFree (ret, |
9280addf | 1583 | exprNode_traversFalseEnsuresConstraints |
1584 | (exprData_getFieldNode (data) ) ); | |
1585 | //exprData_getFieldName (data) ; | |
1586 | break; | |
1587 | ||
1588 | case XPR_ARROW: | |
4ab867d6 | 1589 | ret = constraintList_addListFree (ret, |
9280addf | 1590 | exprNode_traversFalseEnsuresConstraints |
1591 | (exprData_getFieldNode (data) ) ); | |
1592 | // exprData_getFieldName (data); | |
1593 | break; | |
1594 | ||
1595 | case XPR_STRINGLITERAL: | |
1596 | // cstring_copy (exprData_getLiteral (data)); | |
1597 | break; | |
1598 | ||
1599 | case XPR_NUMLIT: | |
1600 | // cstring_copy (exprData_getLiteral (data)); | |
1601 | break; | |
1602 | case XPR_POSTOP: | |
1603 | ||
4ab867d6 | 1604 | ret = constraintList_addListFree (ret, |
9280addf | 1605 | exprNode_traversFalseEnsuresConstraints |
1606 | (exprData_getUopNode (data) ) ); | |
1607 | break; | |
470b7798 | 1608 | |
1609 | case XPR_CAST: | |
1610 | ||
4ab867d6 | 1611 | ret = constraintList_addListFree (ret, |
470b7798 | 1612 | exprNode_traversFalseEnsuresConstraints |
1613 | (exprData_getCastNode (data) ) ); | |
1614 | break; | |
1615 | ||
9280addf | 1616 | default: |
1617 | break; | |
1618 | } | |
1619 | ||
1620 | return ret; | |
1621 | } | |
1622 | ||
616915dd | 1623 | |
1624 | /* walk down the tree and get all requires Constraints in each subexpression*/ | |
d46ce6a4 | 1625 | /*@only@*/ constraintList exprNode_traversRequiresConstraints (exprNode e) |
616915dd | 1626 | { |
470b7798 | 1627 | exprNode t1; |
616915dd | 1628 | |
1629 | bool handledExprNode; | |
1630 | // char * mes; | |
1631 | exprData data; | |
1632 | constraintList ret; | |
1633 | ||
1634 | if (exprNode_handleError (e)) | |
1635 | { | |
c3e695ff | 1636 | ret = constraintList_makeNew(); |
616915dd | 1637 | return ret; |
1638 | } | |
1639 | ret = constraintList_copy (e->requiresConstraints ); | |
1640 | ||
1641 | handledExprNode = TRUE; | |
1642 | ||
1643 | data = e->edata; | |
1644 | ||
1645 | switch (e->kind) | |
1646 | { | |
9280addf | 1647 | case XPR_WHILEPRED: |
1648 | t1 = exprData_getSingle (data); | |
4ab867d6 | 1649 | ret = constraintList_addListFree ( ret, exprNode_traversRequiresConstraints (t1) ); |
9280addf | 1650 | break; |
616915dd | 1651 | |
1652 | case XPR_FETCH: | |
1653 | ||
4ab867d6 | 1654 | ret = constraintList_addListFree (ret, |
616915dd | 1655 | exprNode_traversRequiresConstraints |
1656 | (exprData_getPairA (data) ) ); | |
1657 | ||
4ab867d6 | 1658 | ret = constraintList_addListFree (ret, |
616915dd | 1659 | exprNode_traversRequiresConstraints |
1660 | (exprData_getPairB (data) ) ); | |
1661 | break; | |
1662 | case XPR_PREOP: | |
1663 | ||
4ab867d6 | 1664 | ret = constraintList_addListFree (ret, |
616915dd | 1665 | exprNode_traversRequiresConstraints |
1666 | (exprData_getUopNode (data) ) ); | |
1667 | break; | |
1668 | ||
1669 | case XPR_PARENS: | |
4ab867d6 | 1670 | ret = constraintList_addListFree (ret, exprNode_traversRequiresConstraints |
616915dd | 1671 | (exprData_getUopNode (data) ) ); |
1672 | break; | |
1673 | case XPR_ASSIGN: | |
4ab867d6 | 1674 | ret = constraintList_addListFree (ret, |
616915dd | 1675 | exprNode_traversRequiresConstraints |
1676 | (exprData_getOpA (data) ) ); | |
1677 | ||
4ab867d6 | 1678 | ret = constraintList_addListFree (ret, |
616915dd | 1679 | exprNode_traversRequiresConstraints |
1680 | (exprData_getOpB (data) ) ); | |
1681 | break; | |
1682 | case XPR_OP: | |
4ab867d6 | 1683 | ret = constraintList_addListFree (ret, |
616915dd | 1684 | exprNode_traversRequiresConstraints |
1685 | (exprData_getOpA (data) ) ); | |
1686 | ||
4ab867d6 | 1687 | ret = constraintList_addListFree (ret, |
616915dd | 1688 | exprNode_traversRequiresConstraints |
1689 | (exprData_getOpB (data) ) ); | |
1690 | break; | |
1691 | case XPR_SIZEOFT: | |
1692 | ||
1693 | // ctype_unparse (qtype_getType (exprData_getType (data) ) ); | |
1694 | ||
1695 | break; | |
1696 | ||
1697 | case XPR_SIZEOF: | |
1698 | ||
4ab867d6 | 1699 | ret = constraintList_addListFree (ret, |
616915dd | 1700 | exprNode_traversRequiresConstraints |
1701 | (exprData_getSingle (data) ) ); | |
1702 | break; | |
1703 | ||
1704 | case XPR_CALL: | |
4ab867d6 | 1705 | ret = constraintList_addListFree (ret, |
616915dd | 1706 | exprNode_traversRequiresConstraints |
1707 | (exprData_getFcn (data) ) ); | |
1708 | /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) ); | |
1709 | break; | |
1710 | ||
1711 | case XPR_RETURN: | |
4ab867d6 | 1712 | ret = constraintList_addListFree (ret, |
616915dd | 1713 | exprNode_traversRequiresConstraints |
1714 | (exprData_getSingle (data) ) ); | |
1715 | break; | |
1716 | ||
1717 | case XPR_NULLRETURN: | |
1718 | // cstring_makeLiteral ("return");; | |
1719 | break; | |
1720 | ||
1721 | case XPR_FACCESS: | |
4ab867d6 | 1722 | ret = constraintList_addListFree (ret, |
616915dd | 1723 | exprNode_traversRequiresConstraints |
1724 | (exprData_getFieldNode (data) ) ); | |
1725 | //exprData_getFieldName (data) ; | |
1726 | break; | |
1727 | ||
1728 | case XPR_ARROW: | |
4ab867d6 | 1729 | ret = constraintList_addListFree (ret, |
616915dd | 1730 | exprNode_traversRequiresConstraints |
1731 | (exprData_getFieldNode (data) ) ); | |
1732 | // exprData_getFieldName (data); | |
1733 | break; | |
1734 | ||
1735 | case XPR_STRINGLITERAL: | |
1736 | // cstring_copy (exprData_getLiteral (data)); | |
1737 | break; | |
1738 | ||
1739 | case XPR_NUMLIT: | |
1740 | // cstring_copy (exprData_getLiteral (data)); | |
1741 | break; | |
1742 | case XPR_POSTOP: | |
1743 | ||
4ab867d6 | 1744 | ret = constraintList_addListFree (ret, |
616915dd | 1745 | exprNode_traversRequiresConstraints |
1746 | (exprData_getUopNode (data) ) ); | |
1747 | break; | |
470b7798 | 1748 | |
1749 | case XPR_CAST: | |
1750 | ||
4ab867d6 | 1751 | ret = constraintList_addListFree (ret, |
470b7798 | 1752 | exprNode_traversRequiresConstraints |
1753 | (exprData_getCastNode (data) ) ); | |
1754 | break; | |
1755 | ||
616915dd | 1756 | default: |
1757 | break; | |
1758 | } | |
1759 | ||
1760 | return ret; | |
1761 | } | |
1762 | ||
1763 | ||
1764 | /* walk down the tree and get all Ensures Constraints in each subexpression*/ | |
d46ce6a4 | 1765 | /*@only@*/ constraintList exprNode_traversEnsuresConstraints (exprNode e) |
616915dd | 1766 | { |
470b7798 | 1767 | exprNode t1; |
616915dd | 1768 | |
1769 | bool handledExprNode; | |
1770 | // char * mes; | |
1771 | exprData data; | |
1772 | // constraintExpr tmp; | |
1773 | // constraint cons; | |
1774 | constraintList ret; | |
1775 | ||
1776 | ||
1777 | if (exprNode_handleError (e)) | |
1778 | { | |
c3e695ff | 1779 | ret = constraintList_makeNew(); |
616915dd | 1780 | return ret; |
1781 | } | |
1782 | ||
1783 | ret = constraintList_copy (e->ensuresConstraints ); | |
1784 | handledExprNode = TRUE; | |
1785 | ||
1786 | data = e->edata; | |
1787 | ||
1788 | DPRINTF( (message ( | |
1789 | "exprnode_traversEnsuresConstraints call for %s with constraintList of %s", | |
1790 | exprNode_unparse (e), | |
1791 | constraintList_print(e->ensuresConstraints) | |
1792 | ) | |
1793 | )); | |
1794 | ||
1795 | ||
1796 | switch (e->kind) | |
1797 | { | |
9280addf | 1798 | case XPR_WHILEPRED: |
1799 | t1 = exprData_getSingle (data); | |
4ab867d6 | 1800 | ret = constraintList_addListFree ( ret,exprNode_traversEnsuresConstraints (t1) ); |
9280addf | 1801 | break; |
616915dd | 1802 | |
1803 | case XPR_FETCH: | |
1804 | ||
4ab867d6 | 1805 | ret = constraintList_addListFree (ret, |
616915dd | 1806 | exprNode_traversEnsuresConstraints |
1807 | (exprData_getPairA (data) ) ); | |
1808 | ||
4ab867d6 | 1809 | ret = constraintList_addListFree (ret, |
616915dd | 1810 | exprNode_traversEnsuresConstraints |
1811 | (exprData_getPairB (data) ) ); | |
1812 | break; | |
1813 | case XPR_PREOP: | |
1814 | ||
4ab867d6 | 1815 | ret = constraintList_addListFree (ret, |
616915dd | 1816 | exprNode_traversEnsuresConstraints |
1817 | (exprData_getUopNode (data) ) ); | |
1818 | break; | |
1819 | ||
1820 | case XPR_PARENS: | |
4ab867d6 | 1821 | ret = constraintList_addListFree (ret, exprNode_traversEnsuresConstraints |
616915dd | 1822 | (exprData_getUopNode (data) ) ); |
1823 | break; | |
1824 | case XPR_ASSIGN: | |
4ab867d6 | 1825 | ret = constraintList_addListFree (ret, |
616915dd | 1826 | exprNode_traversEnsuresConstraints |
1827 | (exprData_getOpA (data) ) ); | |
1828 | ||
4ab867d6 | 1829 | ret = constraintList_addListFree (ret, |
616915dd | 1830 | exprNode_traversEnsuresConstraints |
1831 | (exprData_getOpB (data) ) ); | |
1832 | break; | |
1833 | case XPR_OP: | |
4ab867d6 | 1834 | ret = constraintList_addListFree (ret, |
616915dd | 1835 | exprNode_traversEnsuresConstraints |
1836 | (exprData_getOpA (data) ) ); | |
1837 | ||
4ab867d6 | 1838 | ret = constraintList_addListFree (ret, |
616915dd | 1839 | exprNode_traversEnsuresConstraints |
1840 | (exprData_getOpB (data) ) ); | |
1841 | break; | |
1842 | case XPR_SIZEOFT: | |
1843 | ||
1844 | // ctype_unparse (qtype_getType (exprData_getType (data) ) ); | |
1845 | ||
1846 | break; | |
1847 | ||
1848 | case XPR_SIZEOF: | |
1849 | ||
4ab867d6 | 1850 | ret = constraintList_addListFree (ret, |
616915dd | 1851 | exprNode_traversEnsuresConstraints |
1852 | (exprData_getSingle (data) ) ); | |
1853 | break; | |
1854 | ||
1855 | case XPR_CALL: | |
4ab867d6 | 1856 | ret = constraintList_addListFree (ret, |
616915dd | 1857 | exprNode_traversEnsuresConstraints |
1858 | (exprData_getFcn (data) ) ); | |
1859 | /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) ); | |
1860 | break; | |
1861 | ||
1862 | case XPR_RETURN: | |
4ab867d6 | 1863 | ret = constraintList_addListFree (ret, |
616915dd | 1864 | exprNode_traversEnsuresConstraints |
1865 | (exprData_getSingle (data) ) ); | |
1866 | break; | |
1867 | ||
1868 | case XPR_NULLRETURN: | |
1869 | // cstring_makeLiteral ("return");; | |
1870 | break; | |
1871 | ||
1872 | case XPR_FACCESS: | |
4ab867d6 | 1873 | ret = constraintList_addListFree (ret, |
616915dd | 1874 | exprNode_traversEnsuresConstraints |
1875 | (exprData_getFieldNode (data) ) ); | |
1876 | //exprData_getFieldName (data) ; | |
1877 | break; | |
1878 | ||
1879 | case XPR_ARROW: | |
4ab867d6 | 1880 | ret = constraintList_addListFree (ret, |
616915dd | 1881 | exprNode_traversEnsuresConstraints |
1882 | (exprData_getFieldNode (data) ) ); | |
1883 | // exprData_getFieldName (data); | |
1884 | break; | |
1885 | ||
1886 | case XPR_STRINGLITERAL: | |
1887 | // cstring_copy (exprData_getLiteral (data)); | |
1888 | break; | |
1889 | ||
1890 | case XPR_NUMLIT: | |
1891 | // cstring_copy (exprData_getLiteral (data)); | |
1892 | break; | |
1893 | case XPR_POSTOP: | |
1894 | ||
4ab867d6 | 1895 | ret = constraintList_addListFree (ret, |
616915dd | 1896 | exprNode_traversEnsuresConstraints |
1897 | (exprData_getUopNode (data) ) ); | |
1898 | break; | |
470b7798 | 1899 | case XPR_CAST: |
1900 | ||
4ab867d6 | 1901 | ret = constraintList_addListFree (ret, |
470b7798 | 1902 | exprNode_traversEnsuresConstraints |
1903 | (exprData_getCastNode (data) ) ); | |
1904 | break; | |
1905 | ||
616915dd | 1906 | default: |
1907 | break; | |
1908 | } | |
1909 | DPRINTF( (message ( | |
1910 | "exprnode_traversEnsuresConstraints call for %s with constraintList of is returning %s", | |
1911 | exprNode_unparse (e), | |
1912 | // constraintList_print(e->ensuresConstraints), | |
1913 | constraintList_print(ret) | |
1914 | ) | |
1915 | )); | |
1916 | ||
1917 | ||
1918 | return ret; | |
1919 | } | |
1920 | ||
28bf4b0b | 1921 | /*drl moved out of constraintResolve.c 07-02-001 */ |
1922 | void checkArgumentList (/*@out@*/ exprNode temp, exprNodeList arglist, fileloc sequencePoint) | |
1923 | { | |
1924 | temp->requiresConstraints = constraintList_makeNew(); | |
1925 | temp->ensuresConstraints = constraintList_makeNew(); | |
1926 | temp->trueEnsuresConstraints = constraintList_makeNew(); | |
1927 | temp->falseEnsuresConstraints = constraintList_makeNew(); | |
1928 | ||
1929 | exprNodeList_elements (arglist, el) | |
1930 | { | |
1931 | constraintList temp2; | |
1932 | exprNode_exprTraverse (el, FALSE, FALSE, sequencePoint); | |
1933 | temp2 = el->requiresConstraints; | |
1934 | el->requiresConstraints = exprNode_traversRequiresConstraints(el); | |
1935 | constraintList_free(temp2); | |
1936 | ||
1937 | temp2 = el->ensuresConstraints; | |
1938 | el->ensuresConstraints = exprNode_traversEnsuresConstraints(el); | |
1939 | constraintList_free(temp2); | |
1940 | ||
1941 | temp->requiresConstraints = constraintList_addList(temp->requiresConstraints, | |
1942 | el->requiresConstraints); | |
1943 | ||
1944 | temp->ensuresConstraints = constraintList_addList(temp->ensuresConstraints, | |
1945 | el->ensuresConstraints); | |
1946 | } | |
1947 | end_exprNodeList_elements; | |
1948 | ||
1949 | } | |
1950 | ||
1951 | /*drl moved out of constraintResolve.c 07-03-001 */ | |
1952 | constraintList exprNode_getPostConditions (exprNode fcn, exprNodeList arglist, exprNode fcnCall) | |
1953 | { | |
1954 | constraintList postconditions; | |
1955 | uentry temp; | |
1956 | DPRINTF( (message ("Got call that %s ( %s) ", exprNode_unparse(fcn), exprNodeList_unparse (arglist ) ) ) ); | |
1957 | ||
1958 | temp = exprNode_getUentry (fcn); | |
1959 | ||
1960 | postconditions = uentry_getFcnPostconditions (temp); | |
1961 | ||
1962 | if (constraintList_isDefined(postconditions) ) | |
1963 | { | |
1964 | postconditions = constraintList_doSRefFixConstraintParam (postconditions, arglist); | |
1965 | postconditions = constraintList_doFixResult (postconditions, fcnCall); | |
1966 | } | |
1967 | else | |
1968 | { | |
1969 | postconditions = constraintList_makeNew(); | |
1970 | } | |
1971 | ||
1972 | return postconditions; | |
1973 | } | |
1974 | ||
1975 | ||
1976 | /*drl moved out of constraintResolve.c 07-02-001 */ | |
1977 | constraintList checkCall (/*@dependent@*/ exprNode fcn, exprNodeList arglist) | |
1978 | { | |
1979 | constraintList preconditions; | |
1980 | uentry temp; | |
1981 | DPRINTF( (message ("Got call that %s ( %s) ", exprNode_unparse(fcn), exprNodeList_unparse (arglist ) ) ) ); | |
1982 | ||
1983 | temp = exprNode_getUentry (fcn); | |
1984 | ||
1985 | preconditions = uentry_getFcnPreconditions (temp); | |
1986 | ||
1987 | if (constraintList_isDefined(preconditions) ) | |
1988 | { | |
1989 | preconditions = constraintList_togglePost (preconditions); | |
1990 | preconditions = constraintList_preserveCallInfo(preconditions, fcn); | |
1991 | preconditions = constraintList_doSRefFixConstraintParam (preconditions, arglist); | |
1992 | } | |
1993 | else | |
1994 | { | |
1995 | if (constraintList_isUndefined(preconditions) ) | |
1996 | preconditions = constraintList_makeNew(); | |
1997 | } | |
1998 | DPRINTF (( message("Done checkCall\n") )); | |
1999 | DPRINTF (( message("Returning list %q ", constraintList_printDetailed(preconditions) ) )); | |
2000 | return preconditions; | |
2001 | } |