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