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Commit | Line | Data |
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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" | |
11 | # include "cgrammar.h" | |
12 | # include "cgrammar_tokens.h" | |
13 | ||
14 | # include "exprChecks.h" | |
15 | # include "aliasChecks.h" | |
16 | # include "exprNodeSList.h" | |
17 | ||
616915dd | 18 | # include "exprDataQuite.i" |
19 | ||
84c9ffbf | 20 | /*@access exprNode @*/ |
21 | ||
470b7798 | 22 | extern void forLoopHeuristics( exprNode e, exprNode forPred, exprNode forBody); |
23 | ||
616915dd | 24 | bool /*@alt void@*/ exprNode_generateConstraints (/*@temp@*/ exprNode e); |
25 | static bool exprNode_handleError( exprNode p_e); | |
26 | ||
27 | //static cstring exprNode_findConstraints ( exprNode p_e); | |
28 | static bool exprNode_isMultiStatement(exprNode p_e); | |
84c9ffbf | 29 | static void exprNode_multiStatement (exprNode p_e); |
30 | ||
616915dd | 31 | //static void exprNode_constraintPropagateUp (exprNode p_e); |
616915dd | 32 | |
bb25bea6 | 33 | static constraintList exprNode_traversTrueEnsuresConstraints (exprNode e); |
34 | static constraintList exprNode_traversFalseEnsuresConstraints (exprNode e); | |
616915dd | 35 | |
4ab867d6 | 36 | exprNode makeDataTypeConstraints (/*@returned@*/ exprNode e); |
37 | ||
616915dd | 38 | constraintList constraintList_makeFixedArrayConstraints (sRefSet s); |
616915dd | 39 | |
40 | //bool exprNode_testd() | |
41 | //{ | |
42 | /* if ( ( (exprNode_isError ) ) ) | |
43 | { | |
44 | } | |
45 | if ( ( (e_1 ) ) ) | |
46 | { | |
47 | } | |
48 | */ | |
49 | //} | |
50 | ||
bb25bea6 | 51 | static bool exprNode_isUnhandled (exprNode e) |
616915dd | 52 | { |
53 | llassert( exprNode_isDefined(e) ); | |
54 | switch (e->kind) | |
55 | { | |
56 | case XPR_INITBLOCK: | |
57 | case XPR_EMPTY: | |
58 | case XPR_LABEL: | |
59 | case XPR_CONST: | |
60 | case XPR_VAR: | |
61 | case XPR_BODY: | |
62 | case XPR_OFFSETOF: | |
63 | case XPR_ALIGNOFT: | |
64 | case XPR_ALIGNOF: | |
65 | case XPR_VAARG: | |
66 | case XPR_ITERCALL: | |
67 | case XPR_ITER: | |
68 | case XPR_CAST: | |
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 | ||
110 | bool /*@alt void@*/ exprNode_generateConstraints (/*@temp@*/ exprNode e) | |
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); | |
bb25bea6 | 152 | e->requiresConstraints = 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 | ||
bb25bea6 | 190 | static void exprNode_stmt (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 | ||
bb25bea6 | 283 | static void exprNode_stmtList (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); | |
318 | mergeResolve (e, stmt1, stmt2 ); | |
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 | ||
4ab867d6 | 326 | static exprNode doIf (/*@returned@*/ exprNode e, exprNode test, 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); | |
616915dd | 377 | e->requiresConstraints = reflectChanges (body->requiresConstraints, test->trueEnsuresConstraints); |
bb25bea6 | 378 | |
379 | e->requiresConstraints = 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 | ||
616915dd | 386 | #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 | ||
bb25bea6 | 413 | static exprNode doIfElse (/*@returned@*/ exprNode e, exprNode p, exprNode trueBranch, 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 | ||
423 | t = reflectChanges (trueBranch->requiresConstraints, p->trueEnsuresConstraints); | |
bb25bea6 | 424 | t = reflectChangesFreePre (t, p->ensuresConstraints); |
470b7798 | 425 | |
470b7798 | 426 | cons = reflectChanges (falseBranch->requiresConstraints, p->falseEnsuresConstraints); |
bb25bea6 | 427 | cons = 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 | |
4ab867d6 | 462 | static exprNode doWhile (/*@returned@*/ exprNode e, exprNode test, exprNode body) |
9280addf | 463 | { |
464 | DPRINTF ((message ("doWhile: %s ", exprNode_unparse(e) ) ) ); | |
465 | return doIf (e, test, body); | |
466 | } | |
467 | ||
616915dd | 468 | constraintList constraintList_makeFixedArrayConstraints (sRefSet s) |
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 | ||
bb25bea6 | 529 | static void doFor (exprNode e, exprNode forPred, 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 | ||
547 | forLoopHeuristics(e, forPred, forBody); | |
548 | ||
bb25bea6 | 549 | constraintList_free(e->requiresConstraints); |
616915dd | 550 | e->requiresConstraints = reflectChanges (forBody->requiresConstraints, test->ensuresConstraints); |
bb25bea6 | 551 | e->requiresConstraints = reflectChangesFreePre (e->requiresConstraints, test->trueEnsuresConstraints); |
552 | e->requiresConstraints = 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 | ||
84c9ffbf | 590 | void exprNode_multiStatement (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 | ||
bb25bea6 | 805 | static void exprNode_booleanTraverse (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 | ||
821 | /* arithmetic tests */ | |
822 | ||
823 | if (lltok_isEq_Op (tok) ) | |
824 | { | |
825 | cons = constraint_makeEnsureEqual (t1, t2, sequencePoint); | |
826 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); | |
827 | } | |
828 | ||
829 | ||
830 | if (lltok_isLt_Op (tok) ) | |
831 | { | |
832 | cons = constraint_makeEnsureLessThan (t1, t2, sequencePoint); | |
833 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); | |
834 | cons = constraint_makeEnsureGreaterThanEqual (t1, t2, sequencePoint); | |
835 | e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons); | |
836 | } | |
837 | ||
838 | ||
839 | if (lltok_isGe_Op (tok) ) | |
840 | { | |
841 | ||
842 | cons = constraint_makeEnsureGreaterThanEqual (t1, t2, sequencePoint); | |
843 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); | |
844 | ||
845 | cons = constraint_makeEnsureLessThan (t1, t2, sequencePoint); | |
846 | e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons); | |
847 | ||
848 | } | |
849 | ||
850 | ||
851 | if (lltok_isGt_Op (tok) ) | |
852 | { | |
853 | cons = constraint_makeEnsureGreaterThan (t1, t2, sequencePoint); | |
854 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); | |
855 | cons = constraint_makeEnsureLessThanEqual (t1, t2, sequencePoint); | |
856 | e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons); | |
857 | } | |
858 | ||
859 | if (lltok_isLe_Op (tok) ) | |
860 | { | |
861 | cons = constraint_makeEnsureLessThanEqual (t1, t2, sequencePoint); | |
862 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); | |
863 | ||
864 | cons = constraint_makeEnsureGreaterThan (t1, t2, sequencePoint); | |
865 | e->falseEnsuresConstraints = constraintList_add(e->falseEnsuresConstraints, cons); | |
866 | } | |
867 | ||
868 | ||
869 | ||
870 | /*Logical operations */ | |
871 | ||
872 | if (lltok_isAnd_Op (tok) ) | |
873 | ||
874 | { | |
875 | //true ensures | |
876 | tempList = constraintList_copy (t1->trueEnsuresConstraints); | |
877 | tempList = constraintList_addList (tempList, t2->trueEnsuresConstraints); | |
4ab867d6 | 878 | e->trueEnsuresConstraints = constraintList_addListFree(e->trueEnsuresConstraints, tempList); |
616915dd | 879 | |
880 | //false ensures: fens t1 or tens t1 and fens t2 | |
881 | tempList = constraintList_copy (t1->trueEnsuresConstraints); | |
882 | tempList = constraintList_addList (tempList, t2->falseEnsuresConstraints); | |
bb25bea6 | 883 | temp = tempList; |
616915dd | 884 | tempList = constraintList_logicalOr (tempList, t1->falseEnsuresConstraints); |
bb25bea6 | 885 | constraintList_free(temp); |
886 | ||
616915dd | 887 | e->falseEnsuresConstraints =constraintList_addList(e->falseEnsuresConstraints, tempList); |
888 | ||
889 | } | |
84c9ffbf | 890 | else if (lltok_isOr_Op (tok) ) |
891 | { | |
616915dd | 892 | //false ensures |
893 | tempList = constraintList_copy (t1->falseEnsuresConstraints); | |
894 | tempList = constraintList_addList (tempList, t2->falseEnsuresConstraints); | |
4ab867d6 | 895 | e->falseEnsuresConstraints = constraintList_addListFree(e->falseEnsuresConstraints, tempList); |
616915dd | 896 | |
897 | //true ensures: tens t1 or fens t1 and tens t2 | |
898 | tempList = constraintList_copy (t1->falseEnsuresConstraints); | |
899 | tempList = constraintList_addList (tempList, t2->trueEnsuresConstraints); | |
bb25bea6 | 900 | |
901 | temp = tempList; | |
616915dd | 902 | tempList = constraintList_logicalOr (tempList, t1->trueEnsuresConstraints); |
bb25bea6 | 903 | constraintList_free(temp); |
904 | ||
905 | ||
4ab867d6 | 906 | e->trueEnsuresConstraints =constraintList_addListFree(e->trueEnsuresConstraints, tempList); |
616915dd | 907 | |
908 | } | |
84c9ffbf | 909 | else |
910 | { | |
911 | DPRINTF((message("%s is not a boolean operation", lltok_unparse(tok) ) )); | |
912 | } | |
616915dd | 913 | |
914 | } | |
915 | ||
bb25bea6 | 916 | void exprNode_exprTraverse (exprNode e, bool definatelv, bool definaterv, /*@observer@*/ fileloc sequencePoint) |
616915dd | 917 | { |
9280addf | 918 | exprNode t1, t2, fcn; |
616915dd | 919 | lltok tok; |
920 | bool handledExprNode; | |
921 | exprData data; | |
922 | constraint cons; | |
923 | ||
bb25bea6 | 924 | constraintList temp; |
925 | ||
470b7798 | 926 | if (exprNode_isError(e) ) |
927 | { | |
84c9ffbf | 928 | return; // FALSE; |
470b7798 | 929 | } |
930 | ||
931 | DPRINTF((message ("exprNode_exprTraverset Analysising %s %s at", exprNode_unparse( e), | |
616915dd | 932 | fileloc_unparse(exprNode_getfileloc(e) ) ) ) ); |
470b7798 | 933 | |
bb25bea6 | 934 | /*e->requiresConstraints = constraintList_makeNew(); |
c3e695ff | 935 | e->ensuresConstraints = constraintList_makeNew(); |
936 | e->trueEnsuresConstraints = constraintList_makeNew();; | |
937 | e->falseEnsuresConstraints = constraintList_makeNew();; | |
bb25bea6 | 938 | */ |
470b7798 | 939 | if (exprNode_isUnhandled (e) ) |
616915dd | 940 | { |
84c9ffbf | 941 | return; // FALSE; |
616915dd | 942 | } |
943 | // e = makeDataTypeConstraints (e); | |
944 | ||
945 | handledExprNode = TRUE; | |
946 | ||
947 | data = e->edata; | |
948 | ||
949 | switch (e->kind) | |
950 | { | |
951 | ||
952 | ||
953 | case XPR_WHILEPRED: | |
954 | t1 = exprData_getSingle (data); | |
955 | exprNode_exprTraverse (t1, definatelv, definaterv, sequencePoint); | |
956 | e = exprNode_copyConstraints (e, t1); | |
957 | break; | |
958 | ||
959 | case XPR_FETCH: | |
960 | ||
961 | if (definatelv ) | |
962 | { | |
963 | t1 = (exprData_getPairA (data) ); | |
964 | t2 = (exprData_getPairB (data) ); | |
965 | cons = constraint_makeWriteSafeExprNode (t1, t2); | |
966 | } | |
967 | else | |
968 | { | |
969 | t1 = (exprData_getPairA (data) ); | |
970 | t2 = (exprData_getPairB (data) ); | |
971 | cons = constraint_makeReadSafeExprNode (t1, t2 ); | |
972 | } | |
973 | ||
974 | e->requiresConstraints = constraintList_add(e->requiresConstraints, cons); | |
975 | cons = constraint_makeEnsureMaxReadAtLeast (t1, t2, sequencePoint); | |
976 | e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
977 | ||
9280addf | 978 | cons = constraint_makeEnsureLteMaxRead (t2, t1); |
616915dd | 979 | e->trueEnsuresConstraints = constraintList_add(e->trueEnsuresConstraints, cons); |
980 | ||
981 | // cons = constraint_makeEnsureMinReadAtMost (t1, t2, sequencePoint); | |
982 | // e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
d46ce6a4 | 983 | |
616915dd | 984 | exprNode_exprTraverse (exprData_getPairA (data), FALSE, TRUE, sequencePoint); |
985 | exprNode_exprTraverse (exprData_getPairB (data), FALSE, TRUE, sequencePoint); | |
986 | ||
987 | /*@i325 Should check which is array/index. */ | |
988 | break; | |
989 | ||
990 | case XPR_PARENS: | |
991 | exprNode_exprTraverse (exprData_getUopNode (e->edata), definatelv, definaterv, sequencePoint); | |
992 | // e->constraints = constraintList_exprNodemerge (exprData_getUopNode (e->edata), exprNode_undefined); | |
993 | break; | |
994 | case XPR_INIT: | |
995 | /* //t1 = exprData_getInitId (data); */ | |
996 | t2 = exprData_getInitNode (data); | |
997 | //exprNode_exprTraverse (t1, TRUE, FALSE, sequencePoint ); | |
998 | ||
999 | exprNode_exprTraverse (t2, definatelv, TRUE, sequencePoint ); | |
1000 | ||
1001 | /* this test is nessecary because some expressions generate a null expression node. function pointer do that -- drl */ | |
1002 | if ( (!exprNode_isError (e)) && (!exprNode_isError(t2)) ) | |
1003 | { | |
1004 | cons = constraint_makeEnsureEqual (e, t2, sequencePoint); | |
1005 | e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
1006 | } | |
1007 | ||
1008 | break; | |
1009 | case XPR_ASSIGN: | |
1010 | t1 = exprData_getOpA (data); | |
1011 | t2 = exprData_getOpB (data); | |
1012 | exprNode_exprTraverse (t1, TRUE, definaterv, sequencePoint ); | |
84c9ffbf | 1013 | //lltok_unparse (exprData_getOpTok (data)); |
1014 | #warning check this for += -= etc | |
616915dd | 1015 | exprNode_exprTraverse (t2, definatelv, TRUE, sequencePoint ); |
1016 | ||
1017 | /* this test is nessecary because some expressions generate a null expression node. function pointer do that -- drl */ | |
1018 | if ( (!exprNode_isError (t1)) && (!exprNode_isError(t2)) ) | |
1019 | { | |
1020 | cons = constraint_makeEnsureEqual (t1, t2, sequencePoint); | |
1021 | e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
1022 | } | |
1023 | break; | |
1024 | case XPR_OP: | |
1025 | t1 = exprData_getOpA (data); | |
1026 | t2 = exprData_getOpB (data); | |
1027 | ||
1028 | exprNode_exprTraverse (t1, definatelv, definaterv, sequencePoint ); | |
1029 | tok = exprData_getOpTok (data); | |
1030 | exprNode_exprTraverse (t2, definatelv, definaterv, sequencePoint ); | |
1031 | ||
2934b455 | 1032 | #warning fix definatelv and definaterv |
1033 | ||
1034 | if (tok.tok == ADD_ASSIGN) | |
1035 | { | |
1036 | cons = constraint_makeAddAssign (t1, t2, sequencePoint ); | |
1037 | e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
1038 | } | |
1039 | ||
1040 | if (tok.tok == SUB_ASSIGN) | |
1041 | { | |
1042 | cons = constraint_makeSubtractAssign (t1, t2, sequencePoint ); | |
1043 | e->ensuresConstraints = constraintList_add(e->ensuresConstraints, cons); | |
1044 | } | |
1045 | ||
1046 | ||
1047 | ||
616915dd | 1048 | if (lltok_isBoolean_Op (tok) ) |
1049 | exprNode_booleanTraverse (e, definatelv, definaterv, sequencePoint); | |
1050 | ||
1051 | // e->constraints = constraintList_exprNodemerge (exprData_getOpA (data), exprData_getOpB (data)); | |
1052 | break; | |
1053 | case XPR_SIZEOFT: | |
84c9ffbf | 1054 | #warning make sure the case can be ignored.. |
616915dd | 1055 | |
1056 | break; | |
1057 | ||
1058 | case XPR_SIZEOF: | |
1059 | exprNode_exprTraverse (exprData_getSingle (data), definatelv, definaterv, sequencePoint ); | |
1060 | // e->constraints = constraintList_exprNodemerge (exprData_getSingle (e->edata), exprNode_undefined); | |
1061 | break; | |
1062 | ||
1063 | case XPR_CALL: | |
9280addf | 1064 | fcn = exprData_getFcn(data); |
1065 | ||
1066 | exprNode_exprTraverse (fcn, definatelv, definaterv, sequencePoint ); | |
9280addf | 1067 | DPRINTF ( (message ("Got call that %s ( %s) ", exprNode_unparse(fcn), exprNodeList_unparse (exprData_getArgs (data) ) ) ) ); |
616915dd | 1068 | |
4ab867d6 | 1069 | fcn->requiresConstraints = constraintList_addListFree (fcn->requiresConstraints, |
9280addf | 1070 | checkCall (fcn, exprData_getArgs (data) ) ); |
616915dd | 1071 | |
4ab867d6 | 1072 | fcn->ensuresConstraints = constraintList_addListFree (fcn->ensuresConstraints, |
9280addf | 1073 | getPostConditions(fcn, exprData_getArgs (data),e ) ); |
1074 | ||
1075 | t1 = exprNode_createNew (exprNode_getType (e) ); | |
1076 | ||
1077 | checkArgumentList (t1, exprData_getArgs(data), sequencePoint); | |
616915dd | 1078 | |
9280addf | 1079 | |
1080 | mergeResolve (e, t1, fcn); | |
1081 | ||
616915dd | 1082 | // e->constraints = constraintList_add (e->constraints, constraint_create (e,exprNode_undefined, GT, CALLSAFE ) ); |
1083 | break; | |
1084 | ||
1085 | case XPR_RETURN: | |
1086 | exprNode_exprTraverse (exprData_getSingle (data), definatelv, definaterv, sequencePoint ); | |
1087 | break; | |
1088 | ||
1089 | case XPR_NULLRETURN: | |
84c9ffbf | 1090 | |
616915dd | 1091 | break; |
1092 | ||
1093 | ||
1094 | case XPR_FACCESS: | |
1095 | exprNode_exprTraverse (exprData_getFieldNode (data), definatelv, definaterv, sequencePoint ); | |
616915dd | 1096 | break; |
1097 | ||
1098 | case XPR_ARROW: | |
1099 | exprNode_exprTraverse (exprData_getFieldNode (data), definatelv, definaterv, sequencePoint ); | |
616915dd | 1100 | break; |
1101 | ||
1102 | case XPR_STRINGLITERAL: | |
84c9ffbf | 1103 | |
616915dd | 1104 | break; |
1105 | ||
1106 | case XPR_NUMLIT: | |
84c9ffbf | 1107 | |
616915dd | 1108 | break; |
1109 | ||
1110 | case XPR_PREOP: | |
1111 | t1 = exprData_getUopNode(data); | |
1112 | tok = (exprData_getUopTok (data)); | |
1113 | //lltok_unparse (exprData_getUopTok (data)); | |
1114 | exprNode_exprTraverse (t1, definatelv, definaterv, sequencePoint ); | |
1115 | /*handle * pointer access */ | |
1116 | if (lltok_isInc_Op (tok) ) | |
1117 | { | |
1118 | DPRINTF(("doing ++(var)")); | |
1119 | t1 = exprData_getUopNode (data); | |
1120 | cons = constraint_makeMaxSetSideEffectPostIncrement (t1, sequencePoint ); | |
1121 | e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons); | |
1122 | } | |
1123 | else if (lltok_isDec_Op (tok) ) | |
1124 | { | |
1125 | DPRINTF(("doing --(var)")); | |
1126 | t1 = exprData_getUopNode (data); | |
1127 | cons = constraint_makeMaxSetSideEffectPostDecrement (t1, sequencePoint ); | |
1128 | e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons); | |
1129 | } | |
84c9ffbf | 1130 | else if (lltok_isMult( tok ) ) |
616915dd | 1131 | { |
1132 | if (definatelv) | |
1133 | { | |
1134 | cons = constraint_makeWriteSafeInt (t1, 0); | |
1135 | } | |
1136 | else | |
1137 | { | |
1138 | cons = constraint_makeReadSafeInt (t1, 0); | |
1139 | } | |
1140 | e->requiresConstraints = constraintList_add(e->requiresConstraints, cons); | |
1141 | } | |
84c9ffbf | 1142 | else if (lltok_isNot_Op (tok) ) |
1143 | /* ! expr */ | |
616915dd | 1144 | { |
bb25bea6 | 1145 | constraintList_free(e->trueEnsuresConstraints); |
1146 | ||
616915dd | 1147 | e->trueEnsuresConstraints = constraintList_copy (t1->falseEnsuresConstraints); |
bb25bea6 | 1148 | constraintList_free(e->falseEnsuresConstraints); |
616915dd | 1149 | e->falseEnsuresConstraints = constraintList_copy (t1->trueEnsuresConstraints); |
1150 | } | |
bb25bea6 | 1151 | |
84c9ffbf | 1152 | else if (lltok_isAmpersand_Op (tok) ) |
1153 | { | |
1154 | break; | |
1155 | } | |
bb25bea6 | 1156 | else if (lltok_isMinus_Op (tok) ) |
1157 | { | |
1158 | break; | |
1159 | } | |
4ab867d6 | 1160 | else if ( lltok_isExcl_Op (tok) ) |
1161 | { | |
1162 | break; | |
1163 | } | |
1164 | else if (lltok_isTilde_Op (tok) ) | |
1165 | { | |
1166 | break; | |
1167 | } | |
84c9ffbf | 1168 | else |
1169 | { | |
1170 | llcontbug((message("Unsupported preop in %s", exprNode_unparse(e) ) )); | |
1171 | BADEXIT; | |
1172 | } | |
616915dd | 1173 | break; |
1174 | ||
1175 | case XPR_POSTOP: | |
1176 | ||
1177 | exprNode_exprTraverse (exprData_getUopNode (data), TRUE, definaterv, sequencePoint ); | |
84c9ffbf | 1178 | |
616915dd | 1179 | if (lltok_isInc_Op (exprData_getUopTok (data) ) ) |
1180 | { | |
1181 | DPRINTF(("doing ++")); | |
1182 | t1 = exprData_getUopNode (data); | |
1183 | cons = constraint_makeMaxSetSideEffectPostIncrement (t1, sequencePoint ); | |
1184 | e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons); | |
1185 | } | |
1186 | if (lltok_isDec_Op (exprData_getUopTok (data) ) ) | |
1187 | { | |
1188 | DPRINTF(("doing --")); | |
1189 | t1 = exprData_getUopNode (data); | |
1190 | cons = constraint_makeMaxSetSideEffectPostDecrement (t1, sequencePoint ); | |
1191 | e->ensuresConstraints = constraintList_add (e->ensuresConstraints, cons); | |
1192 | } | |
1193 | break; | |
470b7798 | 1194 | case XPR_CAST: |
1195 | llassert(FALSE); | |
1196 | exprNode_exprTraverse (exprData_getCastNode (data), definatelv, definaterv, sequencePoint ); | |
1197 | break; | |
1198 | case XPR_COND: | |
1199 | { | |
1200 | exprNode pred, true, false; | |
1201 | llassert(FALSE); | |
1202 | pred = exprData_getTriplePred (data); | |
1203 | true = exprData_getTripleTrue (data); | |
1204 | false = exprData_getTripleFalse (data); | |
1205 | ||
1206 | exprNode_exprTraverse (pred, FALSE, TRUE, sequencePoint ); | |
bb25bea6 | 1207 | |
1208 | temp = pred->ensuresConstraints; | |
470b7798 | 1209 | pred->ensuresConstraints = exprNode_traversEnsuresConstraints(pred); |
bb25bea6 | 1210 | constraintList_free(temp); |
1211 | ||
1212 | temp = pred->requiresConstraints; | |
470b7798 | 1213 | pred->requiresConstraints = exprNode_traversRequiresConstraints(pred); |
bb25bea6 | 1214 | constraintList_free(temp); |
470b7798 | 1215 | |
bb25bea6 | 1216 | temp = pred->trueEnsuresConstraints; |
470b7798 | 1217 | pred->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(pred); |
bb25bea6 | 1218 | constraintList_free(temp); |
1219 | ||
1220 | temp = pred->falseEnsuresConstraints; | |
470b7798 | 1221 | pred->falseEnsuresConstraints = exprNode_traversFalseEnsuresConstraints(pred); |
bb25bea6 | 1222 | constraintList_free(temp); |
1223 | ||
470b7798 | 1224 | |
1225 | exprNode_exprTraverse (true, FALSE, TRUE, sequencePoint ); | |
bb25bea6 | 1226 | |
1227 | temp = true->ensuresConstraints; | |
470b7798 | 1228 | true->ensuresConstraints = exprNode_traversEnsuresConstraints(true); |
bb25bea6 | 1229 | constraintList_free(temp); |
1230 | ||
1231 | ||
1232 | temp = true->requiresConstraints; | |
470b7798 | 1233 | true->requiresConstraints = exprNode_traversRequiresConstraints(true); |
bb25bea6 | 1234 | constraintList_free(temp); |
1235 | ||
470b7798 | 1236 | |
bb25bea6 | 1237 | temp = true->trueEnsuresConstraints; |
470b7798 | 1238 | true->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(true); |
bb25bea6 | 1239 | constraintList_free(temp); |
1240 | ||
1241 | temp = true->falseEnsuresConstraints; | |
470b7798 | 1242 | true->falseEnsuresConstraints = exprNode_traversFalseEnsuresConstraints(true); |
bb25bea6 | 1243 | constraintList_free(temp); |
470b7798 | 1244 | |
bb25bea6 | 1245 | //dfdf |
470b7798 | 1246 | exprNode_exprTraverse (false, FALSE, TRUE, sequencePoint ); |
bb25bea6 | 1247 | |
1248 | temp = false->ensuresConstraints; | |
470b7798 | 1249 | false->ensuresConstraints = exprNode_traversEnsuresConstraints(false); |
bb25bea6 | 1250 | constraintList_free(temp); |
1251 | ||
1252 | ||
1253 | temp = false->requiresConstraints; | |
470b7798 | 1254 | false->requiresConstraints = exprNode_traversRequiresConstraints(false); |
bb25bea6 | 1255 | constraintList_free(temp); |
1256 | ||
470b7798 | 1257 | |
bb25bea6 | 1258 | temp = false->trueEnsuresConstraints; |
470b7798 | 1259 | false->trueEnsuresConstraints = exprNode_traversTrueEnsuresConstraints(false); |
bb25bea6 | 1260 | constraintList_free(temp); |
470b7798 | 1261 | |
bb25bea6 | 1262 | temp = false->falseEnsuresConstraints; |
1263 | false->falseEnsuresConstraints = exprNode_traversFalseEnsuresConstraints(false); | |
1264 | constraintList_free(temp); | |
470b7798 | 1265 | |
1266 | /* if pred is true e equals true otherwise pred equals false */ | |
1267 | ||
1268 | cons = constraint_makeEnsureEqual (e, true, sequencePoint); | |
1269 | true->ensuresConstraints = constraintList_add(true->ensuresConstraints, cons); | |
1270 | ||
1271 | cons = constraint_makeEnsureEqual (e, true, sequencePoint); | |
1272 | false->ensuresConstraints = constraintList_add(false->ensuresConstraints, cons); | |
1273 | ||
1274 | e = doIfElse (e, pred, true, false); | |
1275 | ||
1276 | } | |
1277 | break; | |
1278 | case XPR_COMMA: | |
1279 | llassert(FALSE); | |
1280 | t1 = exprData_getPairA (data); | |
1281 | t2 = exprData_getPairB (data); | |
1282 | /* we essiantially treat this like expr1; expr2 | |
1283 | of course sequencePoint isn't adjusted so this isn't completely accurate | |
1284 | problems../ */ | |
1285 | exprNode_exprTraverse (t1, FALSE, FALSE, sequencePoint ); | |
1286 | exprNode_exprTraverse (t2, definatelv, definaterv, sequencePoint ); | |
1287 | mergeResolve (e, t1, t2); | |
1288 | break; | |
1289 | ||
616915dd | 1290 | default: |
1291 | handledExprNode = FALSE; | |
1292 | } | |
1293 | ||
1294 | e->requiresConstraints = constraintList_preserveOrig ( e->requiresConstraints); | |
1295 | e->ensuresConstraints = constraintList_preserveOrig ( e->ensuresConstraints); | |
9280addf | 1296 | e->requiresConstraints = constraintList_addGeneratingExpr ( e->requiresConstraints, e); |
1297 | ||
1298 | e->ensuresConstraints = constraintList_addGeneratingExpr ( e->ensuresConstraints, e); | |
1299 | ||
d46ce6a4 | 1300 | DPRINTF((message ("ensures constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->ensuresConstraints) ) )); |
1301 | ||
1302 | DPRINTF((message ("Requires constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->ensuresConstraints) ) )); | |
616915dd | 1303 | |
bb25bea6 | 1304 | DPRINTF((message ("trueEnsures constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->trueEnsuresConstraints) ) )); |
1305 | ||
1306 | DPRINTF((message ("falseEnsures constraints for %s are %s", exprNode_unparse(e), constraintList_printDetailed(e->falseEnsuresConstraints) ) )); | |
1307 | ||
84c9ffbf | 1308 | return; // handledExprNode; |
616915dd | 1309 | } |
1310 | ||
1311 | ||
1312 | constraintList exprNode_traversTrueEnsuresConstraints (exprNode e) | |
1313 | { | |
470b7798 | 1314 | exprNode t1; |
616915dd | 1315 | |
1316 | bool handledExprNode; | |
1317 | // char * mes; | |
1318 | exprData data; | |
1319 | constraintList ret; | |
1320 | ||
1321 | if (exprNode_handleError (e)) | |
1322 | { | |
c3e695ff | 1323 | ret = constraintList_makeNew(); |
616915dd | 1324 | return ret; |
1325 | } | |
1326 | ret = constraintList_copy (e->trueEnsuresConstraints ); | |
1327 | ||
1328 | handledExprNode = TRUE; | |
1329 | ||
1330 | data = e->edata; | |
1331 | ||
1332 | switch (e->kind) | |
1333 | { | |
9280addf | 1334 | case XPR_WHILEPRED: |
1335 | t1 = exprData_getSingle (data); | |
4ab867d6 | 1336 | ret = constraintList_addListFree ( ret, exprNode_traversTrueEnsuresConstraints (t1) ); |
9280addf | 1337 | break; |
616915dd | 1338 | |
1339 | case XPR_FETCH: | |
1340 | ||
4ab867d6 | 1341 | ret = constraintList_addListFree (ret, |
616915dd | 1342 | exprNode_traversTrueEnsuresConstraints |
1343 | (exprData_getPairA (data) ) ); | |
1344 | ||
4ab867d6 | 1345 | ret = constraintList_addListFree (ret, |
616915dd | 1346 | exprNode_traversTrueEnsuresConstraints |
1347 | (exprData_getPairB (data) ) ); | |
1348 | break; | |
1349 | case XPR_PREOP: | |
1350 | ||
4ab867d6 | 1351 | ret = constraintList_addListFree (ret, |
616915dd | 1352 | exprNode_traversTrueEnsuresConstraints |
1353 | (exprData_getUopNode (data) ) ); | |
1354 | break; | |
1355 | ||
1356 | case XPR_PARENS: | |
4ab867d6 | 1357 | ret = constraintList_addListFree (ret, exprNode_traversTrueEnsuresConstraints |
616915dd | 1358 | (exprData_getUopNode (data) ) ); |
1359 | break; | |
1360 | case XPR_ASSIGN: | |
4ab867d6 | 1361 | ret = constraintList_addListFree (ret, |
616915dd | 1362 | exprNode_traversTrueEnsuresConstraints |
1363 | (exprData_getOpA (data) ) ); | |
1364 | ||
4ab867d6 | 1365 | ret = constraintList_addListFree (ret, |
616915dd | 1366 | exprNode_traversTrueEnsuresConstraints |
1367 | (exprData_getOpB (data) ) ); | |
1368 | break; | |
1369 | case XPR_OP: | |
4ab867d6 | 1370 | ret = constraintList_addListFree (ret, |
616915dd | 1371 | exprNode_traversTrueEnsuresConstraints |
1372 | (exprData_getOpA (data) ) ); | |
1373 | ||
4ab867d6 | 1374 | ret = constraintList_addListFree (ret, |
616915dd | 1375 | exprNode_traversTrueEnsuresConstraints |
1376 | (exprData_getOpB (data) ) ); | |
1377 | break; | |
1378 | case XPR_SIZEOFT: | |
1379 | ||
1380 | // ctype_unparse (qtype_getType (exprData_getType (data) ) ); | |
1381 | ||
1382 | break; | |
1383 | ||
1384 | case XPR_SIZEOF: | |
1385 | ||
4ab867d6 | 1386 | ret = constraintList_addListFree (ret, |
1387 | exprNode_traversTrueEnsuresConstraints | |
1388 | (exprData_getSingle (data) ) ); | |
616915dd | 1389 | break; |
1390 | ||
1391 | case XPR_CALL: | |
4ab867d6 | 1392 | ret = constraintList_addListFree (ret, |
616915dd | 1393 | exprNode_traversTrueEnsuresConstraints |
1394 | (exprData_getFcn (data) ) ); | |
1395 | /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) ); | |
1396 | break; | |
1397 | ||
1398 | case XPR_RETURN: | |
4ab867d6 | 1399 | ret = constraintList_addListFree (ret, |
616915dd | 1400 | exprNode_traversTrueEnsuresConstraints |
1401 | (exprData_getSingle (data) ) ); | |
1402 | break; | |
1403 | ||
1404 | case XPR_NULLRETURN: | |
1405 | // cstring_makeLiteral ("return");; | |
1406 | break; | |
1407 | ||
1408 | case XPR_FACCESS: | |
4ab867d6 | 1409 | ret = constraintList_addListFree (ret, |
616915dd | 1410 | exprNode_traversTrueEnsuresConstraints |
1411 | (exprData_getFieldNode (data) ) ); | |
1412 | //exprData_getFieldName (data) ; | |
1413 | break; | |
1414 | ||
1415 | case XPR_ARROW: | |
4ab867d6 | 1416 | ret = constraintList_addListFree (ret, |
616915dd | 1417 | exprNode_traversTrueEnsuresConstraints |
1418 | (exprData_getFieldNode (data) ) ); | |
1419 | // exprData_getFieldName (data); | |
1420 | break; | |
1421 | ||
1422 | case XPR_STRINGLITERAL: | |
1423 | // cstring_copy (exprData_getLiteral (data)); | |
1424 | break; | |
1425 | ||
1426 | case XPR_NUMLIT: | |
1427 | // cstring_copy (exprData_getLiteral (data)); | |
1428 | break; | |
1429 | case XPR_POSTOP: | |
1430 | ||
4ab867d6 | 1431 | ret = constraintList_addListFree (ret, |
616915dd | 1432 | exprNode_traversTrueEnsuresConstraints |
1433 | (exprData_getUopNode (data) ) ); | |
1434 | break; | |
470b7798 | 1435 | |
1436 | case XPR_CAST: | |
1437 | ||
4ab867d6 | 1438 | ret = constraintList_addListFree (ret, |
470b7798 | 1439 | exprNode_traversTrueEnsuresConstraints |
1440 | (exprData_getCastNode (data) ) ); | |
470b7798 | 1441 | break; |
84c9ffbf | 1442 | |
616915dd | 1443 | default: |
1444 | break; | |
1445 | } | |
1446 | ||
1447 | return ret; | |
1448 | } | |
1449 | ||
9280addf | 1450 | constraintList exprNode_traversFalseEnsuresConstraints (exprNode e) |
1451 | { | |
470b7798 | 1452 | exprNode t1; |
9280addf | 1453 | |
1454 | bool handledExprNode; | |
1455 | // char * mes; | |
1456 | exprData data; | |
1457 | constraintList ret; | |
1458 | ||
1459 | if (exprNode_handleError (e)) | |
1460 | { | |
c3e695ff | 1461 | ret = constraintList_makeNew(); |
9280addf | 1462 | return ret; |
1463 | } | |
1464 | ret = constraintList_copy (e->falseEnsuresConstraints ); | |
1465 | ||
1466 | handledExprNode = TRUE; | |
1467 | ||
1468 | data = e->edata; | |
1469 | ||
1470 | switch (e->kind) | |
1471 | { | |
1472 | case XPR_WHILEPRED: | |
1473 | t1 = exprData_getSingle (data); | |
4ab867d6 | 1474 | ret = constraintList_addListFree ( ret,exprNode_traversFalseEnsuresConstraints (t1) ); |
9280addf | 1475 | break; |
1476 | ||
1477 | case XPR_FETCH: | |
1478 | ||
4ab867d6 | 1479 | ret = constraintList_addListFree (ret, |
9280addf | 1480 | exprNode_traversFalseEnsuresConstraints |
1481 | (exprData_getPairA (data) ) ); | |
1482 | ||
4ab867d6 | 1483 | ret = constraintList_addListFree (ret, |
9280addf | 1484 | exprNode_traversFalseEnsuresConstraints |
1485 | (exprData_getPairB (data) ) ); | |
1486 | break; | |
1487 | case XPR_PREOP: | |
1488 | ||
4ab867d6 | 1489 | ret = constraintList_addListFree (ret, |
9280addf | 1490 | exprNode_traversFalseEnsuresConstraints |
1491 | (exprData_getUopNode (data) ) ); | |
1492 | break; | |
1493 | ||
1494 | case XPR_PARENS: | |
4ab867d6 | 1495 | ret = constraintList_addListFree (ret, exprNode_traversFalseEnsuresConstraints |
9280addf | 1496 | (exprData_getUopNode (data) ) ); |
1497 | break; | |
1498 | case XPR_ASSIGN: | |
4ab867d6 | 1499 | ret = constraintList_addListFree (ret, |
9280addf | 1500 | exprNode_traversFalseEnsuresConstraints |
1501 | (exprData_getOpA (data) ) ); | |
1502 | ||
4ab867d6 | 1503 | ret = constraintList_addListFree (ret, |
9280addf | 1504 | exprNode_traversFalseEnsuresConstraints |
1505 | (exprData_getOpB (data) ) ); | |
1506 | break; | |
1507 | case XPR_OP: | |
4ab867d6 | 1508 | ret = constraintList_addListFree (ret, |
9280addf | 1509 | exprNode_traversFalseEnsuresConstraints |
1510 | (exprData_getOpA (data) ) ); | |
1511 | ||
4ab867d6 | 1512 | ret = constraintList_addListFree (ret, |
9280addf | 1513 | exprNode_traversFalseEnsuresConstraints |
1514 | (exprData_getOpB (data) ) ); | |
1515 | break; | |
1516 | case XPR_SIZEOFT: | |
1517 | ||
1518 | // ctype_unparse (qtype_getType (exprData_getType (data) ) ); | |
1519 | ||
1520 | break; | |
1521 | ||
1522 | case XPR_SIZEOF: | |
1523 | ||
4ab867d6 | 1524 | ret = constraintList_addListFree (ret, |
9280addf | 1525 | exprNode_traversFalseEnsuresConstraints |
1526 | (exprData_getSingle (data) ) ); | |
1527 | break; | |
1528 | ||
1529 | case XPR_CALL: | |
4ab867d6 | 1530 | ret = constraintList_addListFree (ret, |
9280addf | 1531 | exprNode_traversFalseEnsuresConstraints |
1532 | (exprData_getFcn (data) ) ); | |
1533 | /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) ); | |
1534 | break; | |
1535 | ||
1536 | case XPR_RETURN: | |
4ab867d6 | 1537 | ret = constraintList_addListFree (ret, |
9280addf | 1538 | exprNode_traversFalseEnsuresConstraints |
1539 | (exprData_getSingle (data) ) ); | |
1540 | break; | |
1541 | ||
1542 | case XPR_NULLRETURN: | |
1543 | // cstring_makeLiteral ("return");; | |
1544 | break; | |
1545 | ||
1546 | case XPR_FACCESS: | |
4ab867d6 | 1547 | ret = constraintList_addListFree (ret, |
9280addf | 1548 | exprNode_traversFalseEnsuresConstraints |
1549 | (exprData_getFieldNode (data) ) ); | |
1550 | //exprData_getFieldName (data) ; | |
1551 | break; | |
1552 | ||
1553 | case XPR_ARROW: | |
4ab867d6 | 1554 | ret = constraintList_addListFree (ret, |
9280addf | 1555 | exprNode_traversFalseEnsuresConstraints |
1556 | (exprData_getFieldNode (data) ) ); | |
1557 | // exprData_getFieldName (data); | |
1558 | break; | |
1559 | ||
1560 | case XPR_STRINGLITERAL: | |
1561 | // cstring_copy (exprData_getLiteral (data)); | |
1562 | break; | |
1563 | ||
1564 | case XPR_NUMLIT: | |
1565 | // cstring_copy (exprData_getLiteral (data)); | |
1566 | break; | |
1567 | case XPR_POSTOP: | |
1568 | ||
4ab867d6 | 1569 | ret = constraintList_addListFree (ret, |
9280addf | 1570 | exprNode_traversFalseEnsuresConstraints |
1571 | (exprData_getUopNode (data) ) ); | |
1572 | break; | |
470b7798 | 1573 | |
1574 | case XPR_CAST: | |
1575 | ||
4ab867d6 | 1576 | ret = constraintList_addListFree (ret, |
470b7798 | 1577 | exprNode_traversFalseEnsuresConstraints |
1578 | (exprData_getCastNode (data) ) ); | |
1579 | break; | |
1580 | ||
9280addf | 1581 | default: |
1582 | break; | |
1583 | } | |
1584 | ||
1585 | return ret; | |
1586 | } | |
1587 | ||
616915dd | 1588 | |
1589 | /* walk down the tree and get all requires Constraints in each subexpression*/ | |
d46ce6a4 | 1590 | /*@only@*/ constraintList exprNode_traversRequiresConstraints (exprNode e) |
616915dd | 1591 | { |
470b7798 | 1592 | exprNode t1; |
616915dd | 1593 | |
1594 | bool handledExprNode; | |
1595 | // char * mes; | |
1596 | exprData data; | |
1597 | constraintList ret; | |
1598 | ||
1599 | if (exprNode_handleError (e)) | |
1600 | { | |
c3e695ff | 1601 | ret = constraintList_makeNew(); |
616915dd | 1602 | return ret; |
1603 | } | |
1604 | ret = constraintList_copy (e->requiresConstraints ); | |
1605 | ||
1606 | handledExprNode = TRUE; | |
1607 | ||
1608 | data = e->edata; | |
1609 | ||
1610 | switch (e->kind) | |
1611 | { | |
9280addf | 1612 | case XPR_WHILEPRED: |
1613 | t1 = exprData_getSingle (data); | |
4ab867d6 | 1614 | ret = constraintList_addListFree ( ret, exprNode_traversRequiresConstraints (t1) ); |
9280addf | 1615 | break; |
616915dd | 1616 | |
1617 | case XPR_FETCH: | |
1618 | ||
4ab867d6 | 1619 | ret = constraintList_addListFree (ret, |
616915dd | 1620 | exprNode_traversRequiresConstraints |
1621 | (exprData_getPairA (data) ) ); | |
1622 | ||
4ab867d6 | 1623 | ret = constraintList_addListFree (ret, |
616915dd | 1624 | exprNode_traversRequiresConstraints |
1625 | (exprData_getPairB (data) ) ); | |
1626 | break; | |
1627 | case XPR_PREOP: | |
1628 | ||
4ab867d6 | 1629 | ret = constraintList_addListFree (ret, |
616915dd | 1630 | exprNode_traversRequiresConstraints |
1631 | (exprData_getUopNode (data) ) ); | |
1632 | break; | |
1633 | ||
1634 | case XPR_PARENS: | |
4ab867d6 | 1635 | ret = constraintList_addListFree (ret, exprNode_traversRequiresConstraints |
616915dd | 1636 | (exprData_getUopNode (data) ) ); |
1637 | break; | |
1638 | case XPR_ASSIGN: | |
4ab867d6 | 1639 | ret = constraintList_addListFree (ret, |
616915dd | 1640 | exprNode_traversRequiresConstraints |
1641 | (exprData_getOpA (data) ) ); | |
1642 | ||
4ab867d6 | 1643 | ret = constraintList_addListFree (ret, |
616915dd | 1644 | exprNode_traversRequiresConstraints |
1645 | (exprData_getOpB (data) ) ); | |
1646 | break; | |
1647 | case XPR_OP: | |
4ab867d6 | 1648 | ret = constraintList_addListFree (ret, |
616915dd | 1649 | exprNode_traversRequiresConstraints |
1650 | (exprData_getOpA (data) ) ); | |
1651 | ||
4ab867d6 | 1652 | ret = constraintList_addListFree (ret, |
616915dd | 1653 | exprNode_traversRequiresConstraints |
1654 | (exprData_getOpB (data) ) ); | |
1655 | break; | |
1656 | case XPR_SIZEOFT: | |
1657 | ||
1658 | // ctype_unparse (qtype_getType (exprData_getType (data) ) ); | |
1659 | ||
1660 | break; | |
1661 | ||
1662 | case XPR_SIZEOF: | |
1663 | ||
4ab867d6 | 1664 | ret = constraintList_addListFree (ret, |
616915dd | 1665 | exprNode_traversRequiresConstraints |
1666 | (exprData_getSingle (data) ) ); | |
1667 | break; | |
1668 | ||
1669 | case XPR_CALL: | |
4ab867d6 | 1670 | ret = constraintList_addListFree (ret, |
616915dd | 1671 | exprNode_traversRequiresConstraints |
1672 | (exprData_getFcn (data) ) ); | |
1673 | /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) ); | |
1674 | break; | |
1675 | ||
1676 | case XPR_RETURN: | |
4ab867d6 | 1677 | ret = constraintList_addListFree (ret, |
616915dd | 1678 | exprNode_traversRequiresConstraints |
1679 | (exprData_getSingle (data) ) ); | |
1680 | break; | |
1681 | ||
1682 | case XPR_NULLRETURN: | |
1683 | // cstring_makeLiteral ("return");; | |
1684 | break; | |
1685 | ||
1686 | case XPR_FACCESS: | |
4ab867d6 | 1687 | ret = constraintList_addListFree (ret, |
616915dd | 1688 | exprNode_traversRequiresConstraints |
1689 | (exprData_getFieldNode (data) ) ); | |
1690 | //exprData_getFieldName (data) ; | |
1691 | break; | |
1692 | ||
1693 | case XPR_ARROW: | |
4ab867d6 | 1694 | ret = constraintList_addListFree (ret, |
616915dd | 1695 | exprNode_traversRequiresConstraints |
1696 | (exprData_getFieldNode (data) ) ); | |
1697 | // exprData_getFieldName (data); | |
1698 | break; | |
1699 | ||
1700 | case XPR_STRINGLITERAL: | |
1701 | // cstring_copy (exprData_getLiteral (data)); | |
1702 | break; | |
1703 | ||
1704 | case XPR_NUMLIT: | |
1705 | // cstring_copy (exprData_getLiteral (data)); | |
1706 | break; | |
1707 | case XPR_POSTOP: | |
1708 | ||
4ab867d6 | 1709 | ret = constraintList_addListFree (ret, |
616915dd | 1710 | exprNode_traversRequiresConstraints |
1711 | (exprData_getUopNode (data) ) ); | |
1712 | break; | |
470b7798 | 1713 | |
1714 | case XPR_CAST: | |
1715 | ||
4ab867d6 | 1716 | ret = constraintList_addListFree (ret, |
470b7798 | 1717 | exprNode_traversRequiresConstraints |
1718 | (exprData_getCastNode (data) ) ); | |
1719 | break; | |
1720 | ||
616915dd | 1721 | default: |
1722 | break; | |
1723 | } | |
1724 | ||
1725 | return ret; | |
1726 | } | |
1727 | ||
1728 | ||
1729 | /* walk down the tree and get all Ensures Constraints in each subexpression*/ | |
d46ce6a4 | 1730 | /*@only@*/ constraintList exprNode_traversEnsuresConstraints (exprNode e) |
616915dd | 1731 | { |
470b7798 | 1732 | exprNode t1; |
616915dd | 1733 | |
1734 | bool handledExprNode; | |
1735 | // char * mes; | |
1736 | exprData data; | |
1737 | // constraintExpr tmp; | |
1738 | // constraint cons; | |
1739 | constraintList ret; | |
1740 | ||
1741 | ||
1742 | if (exprNode_handleError (e)) | |
1743 | { | |
c3e695ff | 1744 | ret = constraintList_makeNew(); |
616915dd | 1745 | return ret; |
1746 | } | |
1747 | ||
1748 | ret = constraintList_copy (e->ensuresConstraints ); | |
1749 | handledExprNode = TRUE; | |
1750 | ||
1751 | data = e->edata; | |
1752 | ||
1753 | DPRINTF( (message ( | |
1754 | "exprnode_traversEnsuresConstraints call for %s with constraintList of %s", | |
1755 | exprNode_unparse (e), | |
1756 | constraintList_print(e->ensuresConstraints) | |
1757 | ) | |
1758 | )); | |
1759 | ||
1760 | ||
1761 | switch (e->kind) | |
1762 | { | |
9280addf | 1763 | case XPR_WHILEPRED: |
1764 | t1 = exprData_getSingle (data); | |
4ab867d6 | 1765 | ret = constraintList_addListFree ( ret,exprNode_traversEnsuresConstraints (t1) ); |
9280addf | 1766 | break; |
616915dd | 1767 | |
1768 | case XPR_FETCH: | |
1769 | ||
4ab867d6 | 1770 | ret = constraintList_addListFree (ret, |
616915dd | 1771 | exprNode_traversEnsuresConstraints |
1772 | (exprData_getPairA (data) ) ); | |
1773 | ||
4ab867d6 | 1774 | ret = constraintList_addListFree (ret, |
616915dd | 1775 | exprNode_traversEnsuresConstraints |
1776 | (exprData_getPairB (data) ) ); | |
1777 | break; | |
1778 | case XPR_PREOP: | |
1779 | ||
4ab867d6 | 1780 | ret = constraintList_addListFree (ret, |
616915dd | 1781 | exprNode_traversEnsuresConstraints |
1782 | (exprData_getUopNode (data) ) ); | |
1783 | break; | |
1784 | ||
1785 | case XPR_PARENS: | |
4ab867d6 | 1786 | ret = constraintList_addListFree (ret, exprNode_traversEnsuresConstraints |
616915dd | 1787 | (exprData_getUopNode (data) ) ); |
1788 | break; | |
1789 | case XPR_ASSIGN: | |
4ab867d6 | 1790 | ret = constraintList_addListFree (ret, |
616915dd | 1791 | exprNode_traversEnsuresConstraints |
1792 | (exprData_getOpA (data) ) ); | |
1793 | ||
4ab867d6 | 1794 | ret = constraintList_addListFree (ret, |
616915dd | 1795 | exprNode_traversEnsuresConstraints |
1796 | (exprData_getOpB (data) ) ); | |
1797 | break; | |
1798 | case XPR_OP: | |
4ab867d6 | 1799 | ret = constraintList_addListFree (ret, |
616915dd | 1800 | exprNode_traversEnsuresConstraints |
1801 | (exprData_getOpA (data) ) ); | |
1802 | ||
4ab867d6 | 1803 | ret = constraintList_addListFree (ret, |
616915dd | 1804 | exprNode_traversEnsuresConstraints |
1805 | (exprData_getOpB (data) ) ); | |
1806 | break; | |
1807 | case XPR_SIZEOFT: | |
1808 | ||
1809 | // ctype_unparse (qtype_getType (exprData_getType (data) ) ); | |
1810 | ||
1811 | break; | |
1812 | ||
1813 | case XPR_SIZEOF: | |
1814 | ||
4ab867d6 | 1815 | ret = constraintList_addListFree (ret, |
616915dd | 1816 | exprNode_traversEnsuresConstraints |
1817 | (exprData_getSingle (data) ) ); | |
1818 | break; | |
1819 | ||
1820 | case XPR_CALL: | |
4ab867d6 | 1821 | ret = constraintList_addListFree (ret, |
616915dd | 1822 | exprNode_traversEnsuresConstraints |
1823 | (exprData_getFcn (data) ) ); | |
1824 | /*@i11*/ // exprNodeList_unparse (exprData_getArgs (data) ); | |
1825 | break; | |
1826 | ||
1827 | case XPR_RETURN: | |
4ab867d6 | 1828 | ret = constraintList_addListFree (ret, |
616915dd | 1829 | exprNode_traversEnsuresConstraints |
1830 | (exprData_getSingle (data) ) ); | |
1831 | break; | |
1832 | ||
1833 | case XPR_NULLRETURN: | |
1834 | // cstring_makeLiteral ("return");; | |
1835 | break; | |
1836 | ||
1837 | case XPR_FACCESS: | |
4ab867d6 | 1838 | ret = constraintList_addListFree (ret, |
616915dd | 1839 | exprNode_traversEnsuresConstraints |
1840 | (exprData_getFieldNode (data) ) ); | |
1841 | //exprData_getFieldName (data) ; | |
1842 | break; | |
1843 | ||
1844 | case XPR_ARROW: | |
4ab867d6 | 1845 | ret = constraintList_addListFree (ret, |
616915dd | 1846 | exprNode_traversEnsuresConstraints |
1847 | (exprData_getFieldNode (data) ) ); | |
1848 | // exprData_getFieldName (data); | |
1849 | break; | |
1850 | ||
1851 | case XPR_STRINGLITERAL: | |
1852 | // cstring_copy (exprData_getLiteral (data)); | |
1853 | break; | |
1854 | ||
1855 | case XPR_NUMLIT: | |
1856 | // cstring_copy (exprData_getLiteral (data)); | |
1857 | break; | |
1858 | case XPR_POSTOP: | |
1859 | ||
4ab867d6 | 1860 | ret = constraintList_addListFree (ret, |
616915dd | 1861 | exprNode_traversEnsuresConstraints |
1862 | (exprData_getUopNode (data) ) ); | |
1863 | break; | |
470b7798 | 1864 | case XPR_CAST: |
1865 | ||
4ab867d6 | 1866 | ret = constraintList_addListFree (ret, |
470b7798 | 1867 | exprNode_traversEnsuresConstraints |
1868 | (exprData_getCastNode (data) ) ); | |
1869 | break; | |
1870 | ||
616915dd | 1871 | default: |
1872 | break; | |
1873 | } | |
1874 | DPRINTF( (message ( | |
1875 | "exprnode_traversEnsuresConstraints call for %s with constraintList of is returning %s", | |
1876 | exprNode_unparse (e), | |
1877 | // constraintList_print(e->ensuresConstraints), | |
1878 | constraintList_print(ret) | |
1879 | ) | |
1880 | )); | |
1881 | ||
1882 | ||
1883 | return ret; | |
1884 | } | |
1885 |