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65f973be | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
77d37419 | 3 | ** Copyright (C) 1994-2002 University of Virginia, |
65f973be | 4 | ** Massachusetts Institute of Technology |
5 | ** | |
6 | ** This program is free software; you can redistribute it and/or modify it | |
7 | ** under the terms of the GNU General Public License as published by the | |
8 | ** Free Software Foundation; either version 2 of the License, or (at your | |
9 | ** option) any later version. | |
10 | ** | |
11 | ** This program is distributed in the hope that it will be useful, but | |
12 | ** WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | ** General Public License for more details. | |
15 | ** | |
16 | ** The GNU General Public License is available from http://www.gnu.org/ or | |
17 | ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | ** MA 02111-1307, USA. | |
19 | ** | |
155af98d | 20 | ** For information on splint: info@splint.org |
21 | ** To report a bug: splint-bug@splint.org | |
11db3170 | 22 | ** For more information: http://www.splint.org |
65f973be | 23 | */ |
24 | ||
3aaedf88 | 25 | /* |
26 | ** constraintExpr.c | |
27 | */ | |
28 | ||
b7b694d6 | 29 | /* #define DEBUGPRINT 1 */ |
3aaedf88 | 30 | |
1b8ae690 | 31 | # include "splintMacros.nf" |
3aaedf88 | 32 | # include "basic.h" |
33 | # include "cgrammar.h" | |
34 | # include "cgrammar_tokens.h" | |
35 | ||
36 | # include "exprChecks.h" | |
3aaedf88 | 37 | # include "exprNodeSList.h" |
38 | ||
3aaedf88 | 39 | /*@-czechfcns@*/ |
40 | ||
393e573f | 41 | /*@access exprNode@*/ /* !!! NO! Don't do this recklessly! */ |
42 | /*@-nullderef@*/ /* !!! DRL needs to fix this code! */ | |
43 | /*@-nullstate@*/ /* !!! DRL needs to fix this code! */ | |
44 | /*@-temptrans@*/ /* !!! DRL needs to fix this code! */ | |
3aaedf88 | 45 | |
46 | ||
86d93ed3 | 47 | static ctype constraintExpr_getOrigType (constraintExpr p_e); |
48 | static bool constraintExpr_hasTypeChange(constraintExpr p_e) /*@*/; | |
920a3797 | 49 | |
28bf4b0b | 50 | static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/constraintExpr p_expr, int p_literal); |
bb25bea6 | 51 | |
920a3797 | 52 | |
86d93ed3 | 53 | /*@only@*/ static constraintExpr |
54 | doSRefFixInvarConstraintTerm (/*@only@*/ constraintExpr p_e, | |
55 | sRef p_s, ctype p_ct); | |
56 | ||
d46ce6a4 | 57 | /*@only@*/ static constraintExpr |
28bf4b0b | 58 | doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr p_e, /*@temp@*/ /*@observer@*/ exprNodeList p_arglist) /*@modifies p_e@*/; |
c3e695ff | 59 | |
4ab867d6 | 60 | static /*@only@*/ constraintExpr |
28bf4b0b | 61 | doFixResultTerm (/*@only@*/ constraintExpr p_e, /*@exposed@*/ exprNode p_fcnCall) |
62 | /*@modifies p_e@*/; | |
86d93ed3 | 63 | |
64 | static bool constraintExpr_canGetCType (constraintExpr p_e) /*@*/; | |
65 | ||
66 | static ctype constraintExpr_getCType (constraintExpr p_e); | |
67 | ||
68 | static /*@only@*/ constraintExpr constraintExpr_adjustMaxSetForCast(/*@only@*/ constraintExpr p_e, ctype p_ct); | |
69 | ||
b7b694d6 | 70 | /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void) |
71 | /* @allocates result->data @ @sets result->kind @ */ ; | |
3aaedf88 | 72 | |
d46ce6a4 | 73 | void constraintExpr_free (/*@only@*/ constraintExpr expr) |
74 | { | |
75 | if (constraintExpr_isDefined(expr) ) | |
76 | { | |
77 | switch (expr->kind) | |
78 | { | |
79 | case unaryExpr: | |
80 | constraintExprData_freeUnaryExpr(expr->data); | |
81 | break; | |
82 | case binaryexpr: | |
83 | constraintExprData_freeBinaryExpr(expr->data); | |
84 | break; | |
85 | case term: | |
86 | constraintExprData_freeTerm(expr->data); | |
87 | break; | |
88 | default: | |
89 | BADEXIT; | |
90 | } | |
bb25bea6 | 91 | |
92 | expr->data = NULL; | |
d46ce6a4 | 93 | free (expr); |
94 | } | |
95 | else | |
96 | { | |
97 | llcontbug(message("attempted to free null pointer in constraintExpr_free")); | |
98 | } | |
99 | } | |
100 | ||
3aaedf88 | 101 | bool constraintExpr_isLit (constraintExpr expr) |
102 | { | |
dc92450f | 103 | llassert (expr != NULL); |
3aaedf88 | 104 | |
105 | if (expr->kind == term) | |
106 | { | |
107 | constraintTerm term = constraintExprData_termGetTerm (expr->data); | |
108 | if (constraintTerm_isIntLiteral (term) ) | |
109 | { | |
110 | return TRUE; | |
111 | } | |
112 | ||
113 | } | |
114 | return FALSE; | |
115 | } | |
116 | ||
7c9c4a67 | 117 | static bool isZeroBinaryOp (constraintExpr expr) |
118 | { | |
119 | constraintExpr e2; | |
120 | ||
7272a1c1 | 121 | llassert (expr != NULL); /* evans 2001-07-18 */ |
122 | ||
7c9c4a67 | 123 | if (!constraintExpr_isBinaryExpr (expr) ) |
124 | { | |
125 | return FALSE; | |
126 | } | |
127 | ||
128 | ||
129 | e2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
130 | ||
7272a1c1 | 131 | llassert (e2 != NULL); /* evans 2001-07-18 */ |
132 | ||
7c9c4a67 | 133 | if (constraintExpr_isBinaryExpr (e2) ) |
134 | { | |
135 | constraintExpr e1; | |
136 | constraintExprBinaryOpKind op; | |
137 | ||
138 | op = constraintExprData_binaryExprGetOp (e2->data); | |
139 | ||
140 | e1 = constraintExprData_binaryExprGetExpr1(e2->data); | |
141 | ||
142 | if (constraintExpr_isLit(e1) ) | |
143 | { | |
144 | if (constraintExpr_getValue(e1) == 0 ) | |
145 | { | |
146 | return TRUE; | |
147 | } | |
148 | } | |
149 | } | |
150 | return FALSE; | |
151 | } | |
152 | ||
153 | /* change expr + (o - expr) to (expr -expr) */ | |
154 | ||
155 | /*@only@*/ static constraintExpr removeZero (/*@only@*/ /*@returned@*/ constraintExpr expr) | |
156 | { | |
157 | constraintExpr expr1, expr2; | |
158 | ||
159 | constraintExpr temp; | |
160 | ||
161 | constraintExprBinaryOpKind op; | |
162 | ||
163 | constraintExprBinaryOpKind tempOp; | |
164 | ||
165 | if (!isZeroBinaryOp(expr) ) | |
166 | return expr; | |
167 | ||
7272a1c1 | 168 | llassert (expr != NULL); /* evans 2001-07-18 */ |
7c9c4a67 | 169 | |
170 | expr1 = constraintExprData_binaryExprGetExpr1(expr->data); | |
171 | expr2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
172 | op = constraintExprData_binaryExprGetOp(expr->data); | |
173 | ||
7272a1c1 | 174 | llassert( constraintExpr_isBinaryExpr(expr2) ); |
175 | ||
7c9c4a67 | 176 | temp = constraintExprData_binaryExprGetExpr2 (expr2->data); |
177 | temp = constraintExpr_copy (temp); | |
178 | ||
179 | tempOp = constraintExprData_binaryExprGetOp (expr2->data); | |
180 | ||
0c91982e | 181 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 182 | op = tempOp; |
acfb6ad9 | 183 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 184 | { |
0c91982e | 185 | if (tempOp == BINARYOP_PLUS) |
acfb6ad9 | 186 | op = BINARYOP_MINUS; |
187 | else if (tempOp == BINARYOP_MINUS) | |
0c91982e | 188 | op = BINARYOP_PLUS; |
7c9c4a67 | 189 | else |
190 | BADEXIT; | |
191 | } | |
192 | else | |
193 | BADEXIT; | |
194 | ||
7c9c4a67 | 195 | expr->data = constraintExprData_binaryExprSetExpr2(expr->data, temp); |
196 | expr->data = constraintExprData_binaryExprSetOp(expr->data, op); | |
197 | ||
198 | return expr; | |
199 | } | |
200 | ||
3aaedf88 | 201 | |
d46ce6a4 | 202 | /*@only@*/ constraintExpr constraintExpr_propagateConstants (/*@only@*/ constraintExpr expr, |
3aaedf88 | 203 | /*@out@*/ bool * propagate, |
204 | /*@out@*/ int *literal) | |
205 | { | |
206 | constraintExpr expr1; | |
207 | constraintExpr expr2; | |
208 | bool propagate1, propagate2; | |
209 | int literal1, literal2; | |
d46ce6a4 | 210 | constraintExprBinaryOpKind op; |
3aaedf88 | 211 | |
212 | propagate1 = FALSE; | |
213 | propagate2 = FALSE; | |
214 | ||
215 | literal1 = 0; | |
216 | literal2 = 0; | |
217 | ||
218 | *propagate = FALSE; | |
219 | *literal = 0; | |
220 | ||
a779b61e | 221 | |
dc92450f | 222 | llassert (expr != NULL); |
3aaedf88 | 223 | |
b7b694d6 | 224 | /* we simplify unaryExpr elsewhere */ |
d46ce6a4 | 225 | if (expr->kind != binaryexpr) |
3aaedf88 | 226 | return expr; |
227 | ||
d46ce6a4 | 228 | op = constraintExprData_binaryExprGetOp (expr->data); |
3aaedf88 | 229 | |
bb7c2085 | 230 | DPRINTF((message("constraintExpr_propagateConstants: binaryexpr: %s", constraintExpr_unparse(expr) ) ) ); |
7c9c4a67 | 231 | |
232 | expr = removeZero(expr); | |
3aaedf88 | 233 | |
234 | expr1 = constraintExprData_binaryExprGetExpr1(expr->data); | |
235 | expr2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
236 | ||
d46ce6a4 | 237 | expr1 = constraintExpr_copy(expr1); |
238 | expr2 = constraintExpr_copy(expr2); | |
239 | ||
3aaedf88 | 240 | expr1 = constraintExpr_propagateConstants (expr1, &propagate1, &literal1); |
241 | expr2 = constraintExpr_propagateConstants (expr2, &propagate2, &literal2); | |
242 | ||
a779b61e | 243 | expr1 = removeZero(expr1); |
244 | expr2 = removeZero(expr2); | |
245 | ||
246 | ||
3aaedf88 | 247 | *propagate = propagate1 || propagate2; |
7c9c4a67 | 248 | |
0c91982e | 249 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 250 | *literal = literal1 + literal2; |
acfb6ad9 | 251 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 252 | *literal = literal1 - literal2; |
253 | else | |
254 | BADEXIT; | |
255 | ||
3aaedf88 | 256 | if ( constraintExpr_isLit (expr1) && constraintExpr_isLit (expr2) ) |
257 | { | |
b9904f57 | 258 | long t1, t2; |
3aaedf88 | 259 | t1 = constraintExpr_getValue (expr1); |
260 | t2 = constraintExpr_getValue (expr2); | |
7c9c4a67 | 261 | llassert(*propagate == FALSE); |
3aaedf88 | 262 | *propagate = FALSE; |
a8e557d3 | 263 | |
d46ce6a4 | 264 | constraintExpr_free (expr); |
265 | constraintExpr_free (expr1); | |
266 | constraintExpr_free (expr2); | |
267 | ||
0c91982e | 268 | if (op == BINARYOP_PLUS ) |
bb7c2085 | 269 | return (constraintExpr_makeIntLiteral ((t1+t2) )); |
acfb6ad9 | 270 | else if (op == BINARYOP_MINUS) |
bb7c2085 | 271 | return (constraintExpr_makeIntLiteral ((t1-t2) )); |
3aaedf88 | 272 | else |
d46ce6a4 | 273 | BADEXIT; |
3aaedf88 | 274 | } |
d46ce6a4 | 275 | |
276 | ||
3aaedf88 | 277 | if (constraintExpr_isLit (expr1) ) |
278 | { | |
3aaedf88 | 279 | *propagate = TRUE; |
d46ce6a4 | 280 | |
7c9c4a67 | 281 | *literal += constraintExpr_getValue (expr1); |
d46ce6a4 | 282 | |
0c91982e | 283 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 284 | { |
285 | constraintExpr_free(expr1); | |
286 | constraintExpr_free(expr); | |
287 | return expr2; | |
288 | } | |
acfb6ad9 | 289 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 290 | { |
a779b61e | 291 | |
7c9c4a67 | 292 | constraintExpr temp; |
293 | ||
294 | /* this is an ugly kludge to deal with not | |
295 | having a unary minus operation...*/ | |
a779b61e | 296 | |
7c9c4a67 | 297 | temp = constraintExpr_makeIntLiteral (0); |
298 | temp = constraintExpr_makeSubtractExpr (temp, expr2); | |
299 | ||
300 | constraintExpr_free(expr1); | |
301 | constraintExpr_free(expr); | |
302 | ||
303 | return temp; | |
304 | } | |
7272a1c1 | 305 | else |
306 | { | |
307 | BADBRANCH; /* evans 2001-07-18 */ | |
308 | } | |
3aaedf88 | 309 | } |
310 | ||
3aaedf88 | 311 | if (constraintExpr_isLit (expr2) ) |
312 | { | |
313 | *propagate = TRUE; | |
a8e557d3 | 314 | |
0c91982e | 315 | if ( op == BINARYOP_PLUS ) |
3aaedf88 | 316 | *literal += constraintExpr_getValue (expr2); |
acfb6ad9 | 317 | else if (op == BINARYOP_MINUS) |
3aaedf88 | 318 | *literal -= constraintExpr_getValue (expr2); |
7c9c4a67 | 319 | else |
320 | BADEXIT; | |
321 | ||
d46ce6a4 | 322 | |
323 | constraintExpr_free(expr2); | |
324 | constraintExpr_free(expr); | |
3aaedf88 | 325 | return expr1; |
326 | } | |
3aaedf88 | 327 | |
bb7c2085 | 328 | DPRINTF((message("constraintExpr_propagateConstants returning: %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 329 | |
d46ce6a4 | 330 | expr->data = constraintExprData_binaryExprSetExpr1 (expr->data, expr1); |
331 | expr->data = constraintExprData_binaryExprSetExpr2 (expr->data, expr2); | |
332 | ||
7c9c4a67 | 333 | expr = removeZero(expr); |
3aaedf88 | 334 | return expr; |
335 | } | |
336 | ||
bb25bea6 | 337 | /*@only@*/ static constraintExpr constraintExpr_combineConstants (/*@only@*/ constraintExpr expr ) /*@modifies expr@*/ |
3aaedf88 | 338 | { |
339 | bool propagate; | |
340 | int literal; | |
341 | ||
bb7c2085 | 342 | DPRINTF ((message ("Before combine %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 343 | expr = constraintExpr_propagateConstants (expr, &propagate, &literal); |
344 | ||
345 | ||
346 | if (propagate) | |
347 | { | |
348 | constraintExpr ret; | |
349 | ||
350 | if (literal != 0) | |
351 | { | |
352 | ret = constraintExpr_makeBinaryOpConstraintExprIntLiteral (expr, literal); | |
353 | expr = ret; | |
354 | } | |
355 | } | |
bb7c2085 | 356 | DPRINTF ((message ("After combine %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 357 | return expr; |
358 | } | |
c3e695ff | 359 | |
dc92450f | 360 | /*@special@*/ |
abd7f895 | 361 | static /*@notnull@*/ constraintExpr constraintExpr_alloc (void) /*@post:isnull result->data@*/ |
3aaedf88 | 362 | { |
363 | constraintExpr ret; | |
364 | ret = dmalloc (sizeof (*ret) ); | |
365 | ret->kind = term; | |
366 | ret->data = NULL; | |
86d93ed3 | 367 | ret->ct = FALSE; |
368 | ret->origType = ctype_undefined; | |
3aaedf88 | 369 | return ret; |
370 | } | |
371 | ||
4ab867d6 | 372 | /*@only@*/ static constraintExprData copyExprData (/*@observer@*/ constraintExprData data, constraintExprKind kind) |
c3e695ff | 373 | { |
374 | constraintExprData ret; | |
375 | llassert(constraintExprData_isDefined(data)); | |
376 | ||
377 | switch (kind) | |
378 | { | |
379 | case binaryexpr: | |
380 | ret = constraintExprData_copyBinaryExpr(data); | |
381 | break; | |
382 | case unaryExpr: | |
383 | ret = constraintExprData_copyUnaryExpr(data); | |
384 | break; | |
385 | case term: | |
386 | ret = constraintExprData_copyTerm(data); | |
387 | break; | |
388 | default: | |
389 | BADEXIT; | |
390 | } | |
391 | return ret; | |
392 | } | |
3aaedf88 | 393 | |
394 | constraintExpr constraintExpr_copy (constraintExpr expr) | |
395 | { | |
396 | constraintExpr ret; | |
abd7f895 | 397 | ret = constraintExpr_alloc (); |
3aaedf88 | 398 | ret->kind = expr->kind; |
c3e695ff | 399 | |
400 | ret->data = copyExprData (expr->data, expr->kind); | |
86d93ed3 | 401 | ret->ct = expr->ct; |
402 | ret->origType = expr->origType; | |
3aaedf88 | 403 | return ret; |
404 | } | |
405 | ||
406 | ||
28bf4b0b | 407 | /*@only@*/ static constraintExpr oldconstraintExpr_makeTermExprNode ( /*@dependent@*/ exprNode e) |
3aaedf88 | 408 | { |
409 | constraintExpr ret; | |
410 | constraintTerm t; | |
411 | ret = constraintExpr_alloc(); | |
412 | ret->kind = term; | |
413 | ret->data = dmalloc (sizeof *(ret->data) ); | |
414 | t = constraintTerm_makeExprNode (e); | |
415 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 416 | ret->ct = FALSE; |
417 | ret->origType = ctype_undefined; | |
418 | ||
3aaedf88 | 419 | return ret; |
420 | } | |
421 | ||
28bf4b0b | 422 | constraintExpr constraintExpr_makeExprNode (exprNode e) |
3aaedf88 | 423 | { |
424 | sRef s; | |
425 | constraintExpr ret, ce1, ce2; | |
426 | exprData data; | |
427 | exprNode t, t1, t2; | |
428 | lltok tok; | |
429 | ||
dc92450f | 430 | llassert (e != NULL); |
3aaedf88 | 431 | |
432 | data = e->edata; | |
433 | ||
434 | switch (e->kind) | |
435 | { | |
436 | case XPR_SIZEOF: | |
437 | t = exprData_getSingle (data); | |
f96fe483 | 438 | while (exprNode_isInParens (t) ) |
439 | { | |
440 | t = exprData_getUopNode (t->edata); | |
441 | } | |
3aaedf88 | 442 | s = exprNode_getSref (t); |
443 | if (sRef_isFixedArray(s) ) | |
444 | { | |
445 | int size; | |
446 | ||
dc92450f | 447 | size = (int) sRef_getArraySize(s); |
3aaedf88 | 448 | ret = constraintExpr_makeIntLiteral (size); |
449 | } | |
f96fe483 | 450 | else if ( exprNode_isStringLiteral (t) ) |
451 | { | |
452 | cstring str; | |
453 | int size; | |
454 | ||
455 | str = multiVal_forceString(exprNode_getValue(t) ); | |
456 | size = cstring_length (str) + 1; | |
457 | ret = constraintExpr_makeIntLiteral (size); | |
458 | } | |
3aaedf88 | 459 | else |
460 | { | |
c3e695ff | 461 | DPRINTF ((message ("could not determine the size of %s", exprNode_unparse (e) ) ) ); |
3aaedf88 | 462 | ret = oldconstraintExpr_makeTermExprNode (e); |
463 | } | |
464 | break; | |
465 | ||
466 | case XPR_OP: | |
c3e695ff | 467 | DPRINTF ((message ("Examining operation %s", exprNode_unparse (e) ) ) ); |
3aaedf88 | 468 | t1 = exprData_getOpA (data); |
469 | t2 = exprData_getOpB (data); | |
470 | tok = exprData_getOpTok (data); | |
471 | ||
472 | if (lltok_isPlus_Op (tok) || lltok_isMinus_Op (tok) ) | |
473 | { | |
474 | ce1 = constraintExpr_makeExprNode (t1); | |
475 | ce2 = constraintExpr_makeExprNode (t2); | |
476 | ret = constraintExpr_parseMakeBinaryOp (ce1, tok, ce2); | |
477 | } | |
86d93ed3 | 478 | |
479 | ||
480 | /*@i333*/ | |
481 | /* uncomment this block to activate the cheesy heuristic | |
482 | for handling sizeof expressions | |
483 | ||
484 | / * | |
7edb30e6 | 485 | drl 8-11-001 |
486 | ||
487 | We handle expressions containing sizeof with the rule | |
488 | (sizeof type ) * Expr = Expr | |
489 | ||
490 | This is the total wronge way to do this but... | |
491 | it may be better than nothing | |
86d93ed3 | 492 | * / |
493 | ||
494 | ||
495 | ||
7edb30e6 | 496 | else if (lltok_isMult(tok) ) |
3aaedf88 | 497 | { |
7edb30e6 | 498 | if ((t1->kind == XPR_SIZEOF) || (t1->kind == XPR_SIZEOFT) ) |
499 | { | |
500 | ret = constraintExpr_makeExprNode(t2); | |
501 | } | |
502 | else if ((t2->kind == XPR_SIZEOF) || (t2->kind == XPR_SIZEOFT) ) | |
503 | { | |
504 | ret = constraintExpr_makeExprNode(t1); | |
86d93ed3 | 505 | } |
7edb30e6 | 506 | else |
507 | { | |
508 | ret = oldconstraintExpr_makeTermExprNode (e); | |
509 | } | |
3aaedf88 | 510 | } |
86d93ed3 | 511 | */ |
7edb30e6 | 512 | else |
513 | ret = oldconstraintExpr_makeTermExprNode (e); | |
514 | ||
3aaedf88 | 515 | break; |
516 | case XPR_PARENS: | |
517 | t = exprData_getUopNode (data); | |
518 | ret = constraintExpr_makeExprNode (t); | |
519 | break; | |
520 | ||
521 | case XPR_PREOP: | |
522 | t = exprData_getUopNode (data); | |
523 | tok = exprData_getUopTok (data); | |
524 | if (lltok_isInc_Op (tok) ) | |
525 | { | |
526 | constraintExpr temp; | |
527 | temp = constraintExpr_makeExprNode(t); | |
528 | ret = constraintExpr_makeIncConstraintExpr(temp); | |
529 | } | |
530 | else if (lltok_isDec_Op (tok) ) | |
531 | { | |
532 | constraintExpr temp; | |
533 | temp = constraintExpr_makeExprNode(t); | |
534 | ret = constraintExpr_makeDecConstraintExpr(temp); | |
535 | } | |
536 | else | |
537 | ret = oldconstraintExpr_makeTermExprNode (e); | |
538 | break; | |
539 | ||
540 | case XPR_POSTOP: | |
541 | t = exprData_getUopNode (data); | |
542 | ret = constraintExpr_makeExprNode (t); | |
543 | break; | |
470b7798 | 544 | case XPR_CAST: |
545 | t = exprData_getCastNode (data); | |
546 | ret = constraintExpr_makeExprNode (t); | |
547 | break; | |
548 | case XPR_COMMA: | |
549 | t = exprData_getPairA(data); | |
c3e695ff | 550 | ret = constraintExpr_makeExprNode(t); |
11db3170 | 551 | /*@i3434*/ /* drl: I'm not sure if this is right. I'm adding a break to quiet Splint */ |
c3e695ff | 552 | break; |
3aaedf88 | 553 | default: |
554 | ret = oldconstraintExpr_makeTermExprNode (e); | |
555 | ||
556 | } | |
557 | return ret; | |
558 | } | |
559 | ||
b7b694d6 | 560 | /*@only@*/ constraintExpr constraintExpr_makeTermExprNode (/*@exposed@*/ exprNode e) |
3aaedf88 | 561 | { |
b7b694d6 | 562 | return oldconstraintExpr_makeTermExprNode(e); |
3aaedf88 | 563 | } |
564 | ||
28bf4b0b | 565 | static constraintExpr constraintExpr_makeTerm (/*@only@*/ constraintTerm t) |
920a3797 | 566 | { |
567 | constraintExpr ret; | |
568 | ||
569 | ret = constraintExpr_alloc(); | |
570 | ret->kind = term; | |
571 | ret->data = dmalloc (sizeof *(ret->data) ); | |
a779b61e | 572 | ret->data->term = NULL; |
920a3797 | 573 | ret->data = constraintExprData_termSetTerm (ret->data, t); |
86d93ed3 | 574 | ret->ct = FALSE; |
575 | ret->origType = ctype_undefined; | |
920a3797 | 576 | |
577 | return ret; | |
578 | } | |
3aaedf88 | 579 | |
28bf4b0b | 580 | constraintExpr constraintExpr_makeTermsRef (/*@temp@*/ sRef s) |
3aaedf88 | 581 | { |
582 | constraintExpr ret; | |
583 | constraintTerm t; | |
584 | ret = constraintExpr_alloc(); | |
585 | ret->kind = term; | |
586 | ret->data = dmalloc (sizeof *(ret->data) ); | |
587 | t = constraintTerm_makesRef (s); | |
588 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 589 | |
590 | ret->ct = FALSE; | |
591 | ret->origType = ctype_undefined; | |
592 | ||
3aaedf88 | 593 | return ret; |
594 | } | |
595 | ||
920a3797 | 596 | /*@special@*/ static constraintExpr makeUnaryOpGeneric (void) /*@allocates result->data@*/ /*@defines result->kind@*/ |
3aaedf88 | 597 | { |
598 | constraintExpr ret; | |
599 | ret = constraintExpr_alloc(); | |
600 | ret->kind = unaryExpr; | |
601 | ret->data = dmalloc ( sizeof *(ret->data) ); | |
a779b61e | 602 | ret->data->unaryOp.expr = constraintExpr_undefined; |
3aaedf88 | 603 | return ret; |
604 | } | |
605 | ||
bb25bea6 | 606 | /*@only@*/ static constraintExpr constraintExpr_makeUnaryOpConstraintExpr (/*@only@*/ constraintExpr cexpr) |
3aaedf88 | 607 | { |
608 | constraintExpr ret; | |
920a3797 | 609 | ret = makeUnaryOpGeneric(); |
a8e557d3 | 610 | |
611 | /*@-uniondef@*/ | |
612 | /*@-compdef@*/ | |
b7b694d6 | 613 | ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr); |
614 | ret->data = constraintExprData_unaryExprSetOp (ret->data, UNARYOP_UNDEFINED); | |
615 | ||
3aaedf88 | 616 | return ret; |
b7b694d6 | 617 | |
a8e557d3 | 618 | /*@=compdef@*/ |
c3e695ff | 619 | /*@=uniondef@*/ |
3aaedf88 | 620 | } |
621 | ||
920a3797 | 622 | |
623 | /*@only@*/ static constraintExpr constraintExpr_makeUnaryOp (/*@only@*/ constraintExpr cexpr, constraintExprUnaryOpKind Op ) | |
624 | { | |
625 | constraintExpr ret; | |
626 | ret = makeUnaryOpGeneric(); | |
627 | ||
628 | ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr); | |
629 | ret->data = constraintExprData_unaryExprSetOp (ret->data, Op); | |
630 | ||
86d93ed3 | 631 | ret->ct = FALSE; |
632 | ret->origType = ctype_undefined; | |
633 | ||
920a3797 | 634 | return ret; |
635 | } | |
636 | ||
bb25bea6 | 637 | /*@only@*/ |
638 | static constraintExpr constraintExpr_makeMaxSetConstraintExpr (/*@only@*/ constraintExpr c) | |
3aaedf88 | 639 | { |
640 | constraintExpr ret; | |
920a3797 | 641 | ret = constraintExpr_makeUnaryOp (c, MAXSET); |
3aaedf88 | 642 | return ret; |
643 | } | |
644 | ||
bb25bea6 | 645 | /*@only@*/ |
4ab867d6 | 646 | static constraintExpr constraintExpr_makeUnaryOpExprNode (/*@exposed@*/ exprNode expr) |
3aaedf88 | 647 | { |
648 | constraintExpr ret; | |
649 | constraintExpr sub; | |
650 | sub = constraintExpr_makeExprNode (expr); | |
651 | ret = constraintExpr_makeUnaryOpConstraintExpr(sub); | |
d46ce6a4 | 652 | |
3aaedf88 | 653 | return ret; |
654 | } | |
655 | ||
656 | ||
657 | ||
bb25bea6 | 658 | /*@only@*/ |
28bf4b0b | 659 | static constraintExpr constraintExpr_makeSRefUnaryOp (/*@temp@*/ /*@observer@*/ sRef s, constraintExprUnaryOpKind op) |
3aaedf88 | 660 | { |
661 | constraintExpr ret; | |
662 | constraintExpr t; | |
663 | ||
664 | t = constraintExpr_makeTermsRef (s); | |
665 | ret = constraintExpr_makeUnaryOpConstraintExpr (t); | |
666 | ret->data = constraintExprData_unaryExprSetOp (ret->data, op); | |
d46ce6a4 | 667 | |
3aaedf88 | 668 | return ret; |
669 | } | |
670 | ||
bb25bea6 | 671 | /*@only@*/ |
28bf4b0b | 672 | constraintExpr constraintExpr_makeSRefMaxRead( sRef s) |
470b7798 | 673 | { |
674 | return (constraintExpr_makeSRefUnaryOp (s, MAXREAD) ); | |
675 | } | |
676 | ||
bb25bea6 | 677 | /*@only@*/ |
28bf4b0b | 678 | constraintExpr constraintExpr_makeSRefMaxset ( sRef s) |
3aaedf88 | 679 | { |
680 | return (constraintExpr_makeSRefUnaryOp (s, MAXSET) ); | |
681 | } | |
682 | ||
bb25bea6 | 683 | /*@only@*/ |
3aaedf88 | 684 | constraintExpr constraintExpr_parseMakeUnaryOp (lltok op, constraintExpr cexpr) |
685 | { | |
686 | constraintExpr ret; | |
687 | ret = constraintExpr_makeUnaryOpConstraintExpr ( cexpr); | |
688 | ||
80489f0a | 689 | switch (lltok_getTok (op)) |
3aaedf88 | 690 | { |
691 | case QMAXSET: | |
692 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXSET); | |
693 | break; | |
694 | case QMAXREAD: | |
695 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD); | |
696 | break; | |
697 | default: | |
2f2892c2 | 698 | llfatalbug (message ("Unhandled operation in constraint: %s", lltok_unparse (op))); |
3aaedf88 | 699 | } |
700 | return ret; | |
701 | } | |
702 | ||
bb25bea6 | 703 | /*@only@*/ |
4ab867d6 | 704 | constraintExpr constraintExpr_makeMaxSetExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 705 | { |
706 | constraintExpr ret; | |
707 | ret = constraintExpr_makeExprNode (expr); | |
708 | ||
709 | ret = constraintExpr_makeMaxSetConstraintExpr (ret); | |
710 | ||
dc92450f | 711 | llassert (ret != NULL); |
3aaedf88 | 712 | return ret; |
713 | } | |
714 | ||
bb25bea6 | 715 | /*@only@*/ |
3aaedf88 | 716 | constraintExpr constraintExpr_makeMaxReadExpr (exprNode expr) |
717 | { | |
718 | constraintExpr ret; | |
719 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
720 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD); | |
721 | return ret; | |
722 | } | |
723 | ||
15b3d2b2 | 724 | # if 0 |
bb25bea6 | 725 | /*@only@*/ |
28bf4b0b | 726 | /*@unused@*/ static constraintExpr constraintExpr_makeMinSetExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 727 | { |
728 | constraintExpr ret; | |
729 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
730 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MINSET); | |
731 | return ret; | |
732 | } | |
733 | ||
bb25bea6 | 734 | /*@only@*/ |
28bf4b0b | 735 | /*@unused@*/ static constraintExpr constraintExpr_makeMinReadExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 736 | { |
737 | constraintExpr ret; | |
738 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
739 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MINREAD); | |
740 | return ret; | |
741 | } | |
15b3d2b2 | 742 | # endif |
3aaedf88 | 743 | |
bb25bea6 | 744 | /*@only@*/ |
4ab867d6 | 745 | constraintExpr constraintExpr_makeValueExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 746 | { |
747 | constraintExpr ret; | |
748 | ret = constraintExpr_makeExprNode (expr); | |
749 | return ret; | |
750 | } | |
751 | ||
bb25bea6 | 752 | /*@only@*/ |
b9904f57 | 753 | constraintExpr constraintExpr_makeIntLiteral (long i) |
3aaedf88 | 754 | { |
755 | constraintExpr ret; | |
756 | constraintTerm t; | |
757 | ret = constraintExpr_alloc(); | |
758 | ret->kind = term; | |
759 | ret->data = dmalloc (sizeof *(ret->data) ); | |
760 | t = constraintTerm_makeIntLiteral (i); | |
761 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 762 | |
763 | ret->ct = FALSE; | |
764 | ret->origType = ctype_undefined; | |
765 | ||
3aaedf88 | 766 | return ret; |
767 | } | |
768 | ||
c3e695ff | 769 | /* |
3aaedf88 | 770 | constraintExpr constraintExpr_makeValueInt (int i) |
771 | { | |
772 | return constraintExpr_makeIntLiteral (i); | |
773 | } | |
c3e695ff | 774 | */ |
3aaedf88 | 775 | |
bb25bea6 | 776 | /*@only@*/ |
28bf4b0b | 777 | /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void) |
778 | /*@allocates result->data @*/ /*@sets result->kind @*/ | |
3aaedf88 | 779 | { |
780 | constraintExpr ret; | |
781 | ret = constraintExpr_alloc(); | |
782 | ret->kind = binaryexpr; | |
783 | ret->data = dmalloc ( sizeof *(ret->data) ); | |
a779b61e | 784 | |
785 | ret->data->binaryOp.expr1 = constraintExpr_undefined; | |
786 | ret->data->binaryOp.expr2 = constraintExpr_undefined; | |
787 | ||
3aaedf88 | 788 | return ret; |
789 | } | |
790 | ||
791 | ||
bb25bea6 | 792 | static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExpr (/*@only@*/constraintExpr expr1, /*@only@*/ constraintExpr expr2) |
3aaedf88 | 793 | |
794 | { | |
795 | constraintExpr ret; | |
d46ce6a4 | 796 | |
3aaedf88 | 797 | ret = constraintExpr_makeBinaryOp(); |
798 | ret->data = constraintExprData_binaryExprSetExpr1 (ret->data, expr1); | |
799 | ret->data = constraintExprData_binaryExprSetExpr2 (ret->data, expr2); | |
84c9ffbf | 800 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED); |
86d93ed3 | 801 | |
802 | ret->ct = FALSE; | |
803 | ret->origType = ctype_undefined; | |
804 | ||
3aaedf88 | 805 | return ret; |
806 | } | |
807 | ||
bb25bea6 | 808 | /*@only@*/ |
d46ce6a4 | 809 | constraintExpr constraintExpr_parseMakeBinaryOp (/*@only@*/ constraintExpr expr1, lltok op,/*@only@*/ constraintExpr expr2) |
3aaedf88 | 810 | { |
811 | constraintExpr ret; | |
812 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2); | |
80489f0a | 813 | |
814 | if (lltok_getTok (op) == TPLUS) | |
815 | { | |
816 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); | |
817 | } | |
818 | else if (lltok_getTok (op) == TMINUS) | |
819 | { | |
820 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS); | |
821 | } | |
822 | else | |
823 | { | |
824 | llassert (FALSE); | |
825 | } | |
826 | ||
3aaedf88 | 827 | return ret; |
828 | } | |
829 | ||
15b3d2b2 | 830 | # if 0 |
bb25bea6 | 831 | /*@only@*/ |
28bf4b0b | 832 | /*@unused@*/ static constraintExpr constraintExpr_makeBinaryOpExprNode (/*@exposed@*/ exprNode expr1, /*@exposed@*/ exprNode expr2) |
3aaedf88 | 833 | { |
834 | constraintExpr ret; | |
835 | constraintExpr sub1, sub2; | |
836 | sub1 = constraintExpr_makeTermExprNode (expr1); | |
837 | sub2 = constraintExpr_makeTermExprNode (expr2); | |
838 | ret = constraintExpr_makeBinaryOpConstraintExpr(sub1, sub2); | |
839 | return ret; | |
840 | } | |
15b3d2b2 | 841 | # endif |
3aaedf88 | 842 | |
920a3797 | 843 | static /*@only@*/ |
d46ce6a4 | 844 | constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/ constraintExpr expr, int literal) |
3aaedf88 | 845 | { |
846 | constraintExpr ret; | |
847 | constraintExpr constExpr; | |
848 | ||
849 | constExpr = constraintExpr_makeIntLiteral (literal); | |
850 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, constExpr); | |
0c91982e | 851 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 852 | return ret; |
853 | } | |
854 | ||
bb25bea6 | 855 | /*@only@*/ |
d46ce6a4 | 856 | constraintExpr constraintExpr_makeDecConstraintExpr (/*@only@*/constraintExpr expr) |
3aaedf88 | 857 | { |
858 | constraintExpr ret; | |
859 | constraintExpr inc; | |
860 | ||
861 | inc = constraintExpr_makeIntLiteral (1); | |
862 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc); | |
acfb6ad9 | 863 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS); |
3aaedf88 | 864 | return ret; |
865 | } | |
866 | ||
2934b455 | 867 | |
868 | /*@only@*/ constraintExpr constraintExpr_makeSubtractExpr (/*@only@*/ constraintExpr expr, /*@only@*/ constraintExpr addent) | |
869 | { | |
28bf4b0b | 870 | constraintExpr ret; |
2934b455 | 871 | |
bb7c2085 | 872 | DPRINTF ((message ("Making subtract expression") ) ); |
2934b455 | 873 | |
28bf4b0b | 874 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent); |
acfb6ad9 | 875 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_MINUS); |
28bf4b0b | 876 | return ret; |
2934b455 | 877 | } |
878 | ||
bb25bea6 | 879 | /*@only@*/ |
2934b455 | 880 | constraintExpr constraintExpr_makeAddExpr (/*@only@*/ |
bb25bea6 | 881 | constraintExpr expr, /*@only@*/ |
2934b455 | 882 | constraintExpr addent) |
3aaedf88 | 883 | { |
28bf4b0b | 884 | constraintExpr ret; |
3aaedf88 | 885 | |
bb7c2085 | 886 | DPRINTF ((message ("Doing addTerm simplification") ) ); |
3aaedf88 | 887 | |
28bf4b0b | 888 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent); |
0c91982e | 889 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_PLUS); |
28bf4b0b | 890 | return ret; |
3aaedf88 | 891 | } |
892 | ||
2934b455 | 893 | |
bb25bea6 | 894 | /*@only@*/ |
d46ce6a4 | 895 | constraintExpr constraintExpr_makeIncConstraintExpr (/*@only@*/ constraintExpr expr) |
3aaedf88 | 896 | { |
897 | constraintExpr ret; | |
898 | constraintExpr inc; | |
899 | ||
900 | inc = constraintExpr_makeIntLiteral (1); | |
901 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc); | |
0c91982e | 902 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 903 | return ret; |
904 | } | |
905 | ||
bb25bea6 | 906 | /*@only@*/ |
907 | static cstring constraintExprUnaryOpKind_print (constraintExprUnaryOpKind op) | |
3aaedf88 | 908 | { |
909 | switch (op) | |
910 | { | |
911 | case MAXSET: | |
03d670b6 | 912 | return message("maxSet"); |
3aaedf88 | 913 | case MINSET: |
03d670b6 | 914 | return message("minSet"); |
3aaedf88 | 915 | case MAXREAD: |
03d670b6 | 916 | return message("maxRead"); |
3aaedf88 | 917 | case MINREAD: |
03d670b6 | 918 | return message("minRead"); |
3aaedf88 | 919 | default: |
920 | llassert(FALSE); | |
921 | return message ("<(Unary OP OTHER>"); | |
922 | } | |
923 | } | |
924 | ||
925 | ||
bb25bea6 | 926 | /*@only@*/ |
927 | static cstring constraintExprBinaryOpKind_print (constraintExprBinaryOpKind op) | |
3aaedf88 | 928 | { |
929 | ||
930 | switch (op) | |
931 | { | |
0c91982e | 932 | case BINARYOP_PLUS: |
3aaedf88 | 933 | return message("+"); |
acfb6ad9 | 934 | case BINARYOP_MINUS: |
3aaedf88 | 935 | return message("-"); |
dc92450f | 936 | |
937 | default: | |
938 | llassert(FALSE); | |
939 | return message ("<binary OP Unknown>"); | |
3aaedf88 | 940 | } |
3aaedf88 | 941 | } |
942 | ||
943 | bool constraintExpr_similar (constraintExpr expr1, constraintExpr expr2) | |
944 | { | |
945 | constraintExprKind kind; | |
946 | ||
947 | llassert (expr1 != NULL); | |
948 | llassert (expr2 != NULL); | |
949 | if (expr1->kind != expr2->kind) | |
950 | return FALSE; | |
951 | ||
952 | kind = expr1->kind; | |
953 | ||
954 | switch (kind) | |
955 | { | |
956 | case term: | |
957 | return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data), | |
958 | constraintExprData_termGetTerm(expr2->data) ); | |
c3e695ff | 959 | /*@notreached@*/ break; |
3aaedf88 | 960 | |
961 | case unaryExpr: | |
962 | if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) ) | |
963 | return FALSE; | |
964 | ||
965 | return (constraintExpr_similar ( | |
966 | constraintExprData_unaryExprGetExpr (expr1->data), | |
967 | constraintExprData_unaryExprGetExpr (expr2->data) | |
968 | )); | |
969 | ||
970 | case binaryexpr: | |
971 | if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) ) | |
972 | return FALSE; | |
973 | ||
974 | if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr1 (expr1->data), | |
975 | constraintExprData_binaryExprGetExpr1 (expr2->data)) ) | |
976 | return FALSE; | |
977 | ||
978 | if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr2 (expr1->data), | |
979 | constraintExprData_binaryExprGetExpr2 (expr2->data)) ) | |
980 | return FALSE; | |
981 | else | |
982 | return TRUE; | |
983 | /*@notreached@*/ | |
984 | break; | |
985 | ||
986 | default: | |
987 | llassert(FALSE); | |
988 | return FALSE; | |
989 | } | |
990 | /*@notreached@*/ | |
991 | return FALSE; | |
992 | } | |
993 | ||
994 | bool constraintExpr_same (constraintExpr expr1, constraintExpr expr2) | |
995 | { | |
996 | constraintExprKind kind; | |
997 | ||
998 | llassert (expr1 != NULL); | |
999 | llassert (expr2 != NULL); | |
1000 | if (expr1->kind != expr2->kind) | |
1001 | return FALSE; | |
1002 | ||
1003 | kind = expr1->kind; | |
1004 | ||
1005 | switch (kind) | |
1006 | { | |
1007 | case term: | |
1008 | return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data), | |
1009 | constraintExprData_termGetTerm(expr2->data) ); | |
dc92450f | 1010 | /*@notreached@*/ break; |
3aaedf88 | 1011 | |
1012 | case unaryExpr: | |
1013 | if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) ) | |
1014 | return FALSE; | |
1015 | ||
1016 | return (constraintExpr_same ( | |
1017 | constraintExprData_unaryExprGetExpr (expr1->data), | |
1018 | constraintExprData_unaryExprGetExpr (expr2->data) | |
1019 | )); | |
1020 | ||
1021 | ||
1022 | case binaryexpr: | |
1023 | if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) ) | |
1024 | return FALSE; | |
1025 | ||
1026 | if (! constraintExpr_same (constraintExprData_binaryExprGetExpr1 (expr1->data), | |
1027 | constraintExprData_binaryExprGetExpr1 (expr2->data)) ) | |
1028 | return FALSE; | |
1029 | ||
1030 | if (! constraintExpr_same (constraintExprData_binaryExprGetExpr2 (expr1->data), | |
1031 | constraintExprData_binaryExprGetExpr2 (expr2->data)) ) | |
1032 | return FALSE; | |
1033 | else | |
1034 | return TRUE; | |
dc92450f | 1035 | /*@notreached@*/ break; |
3aaedf88 | 1036 | |
1037 | default: | |
1038 | llassert(FALSE); | |
1039 | return FALSE; | |
1040 | } | |
1041 | ||
1042 | /*@notreached@*/ | |
1043 | BADEXIT; | |
1044 | } | |
1045 | ||
bb25bea6 | 1046 | bool constraintExpr_search (/*@observer@*/ constraintExpr c, /*@observer@*/ constraintExpr old) |
3aaedf88 | 1047 | { |
1048 | bool ret = FALSE; | |
1049 | constraintExprKind kind; | |
1050 | constraintExpr temp; | |
1051 | ||
1052 | if ( constraintExpr_similar (c, old) ) | |
1053 | { | |
bb25bea6 | 1054 | DPRINTF((message ("Found %q", |
3aaedf88 | 1055 | constraintExpr_unparse(old) |
1056 | ))); | |
1057 | return TRUE; | |
1058 | } | |
1059 | ||
1060 | kind = c->kind; | |
1061 | ||
1062 | switch (kind) | |
1063 | { | |
1064 | case term: | |
1065 | break; | |
1066 | case unaryExpr: | |
1067 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
1068 | ret = ret || constraintExpr_search (temp, old); | |
1069 | break; | |
1070 | case binaryexpr: | |
1071 | ||
1072 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
1073 | ret = ret || constraintExpr_search(temp, old); | |
1074 | ||
1075 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
1076 | ret = ret || constraintExpr_search(temp, old); | |
1077 | break; | |
1078 | default: | |
1079 | llassert(FALSE); | |
1080 | } | |
1081 | return ret; | |
1082 | ||
1083 | } | |
1084 | ||
1085 | ||
28bf4b0b | 1086 | /*@only@*/ constraintExpr constraintExpr_searchandreplace (/*@only@*/ /*@unique@*/ constraintExpr c, /*@temp@*/ constraintExpr old, /*@temp@*/ constraintExpr newExpr ) |
3aaedf88 | 1087 | { |
1088 | constraintExprKind kind; | |
1089 | constraintExpr temp; | |
86d93ed3 | 1090 | constraintExpr ret; |
3aaedf88 | 1091 | |
1092 | if ( constraintExpr_similar (c, old) ) | |
1093 | { | |
86d93ed3 | 1094 | |
1095 | ctype newType, cType; | |
1096 | ||
1097 | ||
1098 | ret = constraintExpr_copy (newExpr); | |
bb25bea6 | 1099 | |
470b7798 | 1100 | DPRINTF((message ("Replacing %s with %s", |
28bf4b0b | 1101 | constraintExpr_unparse(old), constraintExpr_unparse(newExpr) |
3aaedf88 | 1102 | ))); |
86d93ed3 | 1103 | |
1104 | if (constraintExpr_canGetCType(c) && constraintExpr_canGetCType(newExpr) ) | |
1105 | { | |
1106 | cType = constraintExpr_getCType(c); | |
1107 | newType = constraintExpr_getCType(newExpr); | |
1108 | ||
1109 | if (ctype_match(cType,newType) ) | |
1110 | { | |
1111 | DPRINTF(( message("constraintExpr_searchandreplace: replacing " | |
1112 | " %s with type %s with %s with type %s", | |
1113 | constraintExpr_print(c), ctype_unparse(cType), | |
1114 | constraintExpr_print(newExpr), ctype_unparse(newType) | |
1115 | ) | |
1116 | )); | |
1117 | ||
1118 | ret->ct = TRUE; | |
1119 | ret->origType = cType; | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | if (constraintExpr_hasMaxSet(c) ) | |
1124 | { | |
1125 | if (constraintExpr_hasTypeChange(c)) | |
1126 | { | |
1127 | DPRINTF(( message("constraintExpr_searchandreplace: encountered " | |
1128 | "MaxSet with changed type %s ", | |
1129 | constraintExpr_print(c) ) | |
1130 | )); | |
1131 | ||
1132 | /*fix this with a conversation */ | |
1133 | ret = constraintExpr_adjustMaxSetForCast(ret, constraintExpr_getOrigType(c)); | |
1134 | } | |
1135 | } | |
bb25bea6 | 1136 | constraintExpr_free(c); |
86d93ed3 | 1137 | |
1138 | return ret; | |
3aaedf88 | 1139 | } |
1140 | ||
1141 | kind = c->kind; | |
1142 | ||
1143 | switch (kind) | |
1144 | { | |
1145 | case term: | |
1146 | break; | |
1147 | case unaryExpr: | |
1148 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1149 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1150 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1151 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); |
1152 | break; | |
1153 | case binaryexpr: | |
1154 | ||
1155 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
d46ce6a4 | 1156 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1157 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1158 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); |
1159 | ||
1160 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1161 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1162 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1163 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); |
1164 | break; | |
1165 | default: | |
1166 | llassert(FALSE); | |
1167 | } | |
1168 | return c; | |
3aaedf88 | 1169 | } |
1170 | ||
bb25bea6 | 1171 | static constraintExpr constraintExpr_simplifyChildren (/*@returned@*/ constraintExpr c) |
3aaedf88 | 1172 | { |
1173 | constraintExprKind kind; | |
1174 | constraintExpr temp; | |
1175 | ||
1176 | kind = c->kind; | |
1177 | ||
1178 | switch (kind) | |
1179 | { | |
1180 | case term: | |
1181 | break; | |
1182 | case unaryExpr: | |
1183 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1184 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1185 | temp = constraintExpr_simplify (temp); |
1186 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); | |
1187 | break; | |
1188 | case binaryexpr: | |
c3e695ff | 1189 | DPRINTF((message("constraintExpr_simplfiyChildren: simplify binary expression: %s",constraintExpr_unparse(c) ) ) ); |
3aaedf88 | 1190 | temp = constraintExprData_binaryExprGetExpr1 (c->data); |
d46ce6a4 | 1191 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1192 | temp = constraintExpr_simplify (temp); |
1193 | ||
1194 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); | |
1195 | ||
1196 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1197 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1198 | temp = constraintExpr_simplify (temp); |
1199 | ||
1200 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); | |
1201 | break; | |
1202 | default: | |
1203 | llassert(FALSE); | |
1204 | } | |
1205 | return c; | |
1206 | ||
1207 | } | |
1208 | ||
1209 | ||
28bf4b0b | 1210 | constraintExpr constraintExpr_setFileloc (/*@returned@*/ constraintExpr c, fileloc loc) /*@modifies c @*/ |
3aaedf88 | 1211 | { |
1212 | constraintTerm t; | |
1213 | constraintExpr temp; | |
1214 | ||
dc92450f | 1215 | llassert(c != NULL); |
3aaedf88 | 1216 | |
1217 | switch (c->kind) | |
1218 | { | |
1219 | case term: | |
1220 | t = constraintExprData_termGetTerm (c->data); | |
d46ce6a4 | 1221 | t = constraintTerm_copy(t); |
3aaedf88 | 1222 | t = constraintTerm_setFileloc (t, loc); |
1223 | c->data = constraintExprData_termSetTerm (c->data, t); | |
1224 | break; | |
1225 | case binaryexpr: | |
1226 | ||
1227 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
d46ce6a4 | 1228 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1229 | temp = constraintExpr_setFileloc (temp, loc); |
1230 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); | |
1231 | ||
1232 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1233 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1234 | temp = constraintExpr_setFileloc (temp, loc); |
1235 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); | |
1236 | break; | |
1237 | case unaryExpr: | |
1238 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1239 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1240 | temp = constraintExpr_setFileloc (temp, loc); |
1241 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); | |
1242 | break; | |
1243 | } | |
1244 | return c; | |
1245 | } | |
1246 | ||
bb25bea6 | 1247 | static /*@only@*/ constraintExpr constraintExpr_simplifybinaryExpr (/*@only@*/constraintExpr c) |
3aaedf88 | 1248 | { |
1249 | constraintExpr e1, e2; | |
7c9c4a67 | 1250 | constraintExprBinaryOpKind op; |
1251 | ||
3aaedf88 | 1252 | e1 = constraintExprData_binaryExprGetExpr1 (c->data); |
1253 | e2 = constraintExprData_binaryExprGetExpr2 (c->data); | |
1254 | ||
1255 | if (constraintExpr_canGetValue (e1) && constraintExpr_canGetValue(e2) ) | |
1256 | { | |
b9904f57 | 1257 | long i; |
3aaedf88 | 1258 | |
1259 | i = constraintExpr_getValue(e1) + constraintExpr_getValue (e2); | |
d46ce6a4 | 1260 | constraintExpr_free(c); |
3aaedf88 | 1261 | c = constraintExpr_makeIntLiteral (i); |
3aaedf88 | 1262 | } |
7c9c4a67 | 1263 | else |
1264 | { | |
1265 | op = constraintExprData_binaryExprGetOp (c->data); | |
acfb6ad9 | 1266 | if (op == BINARYOP_MINUS) |
7c9c4a67 | 1267 | if (constraintExpr_similar(e1, e2) ) |
1268 | { | |
1269 | constraintExpr_free(c); | |
1270 | c = constraintExpr_makeIntLiteral (0); | |
1271 | } | |
1272 | } | |
1273 | ||
3aaedf88 | 1274 | return c; |
1275 | } | |
1276 | ||
bb25bea6 | 1277 | /* |
1278 | this thing takes the lexpr and expr of a constraint and modifies lexpr | |
1279 | and returns a (possiblly new) value for expr | |
1280 | */ | |
1281 | /* if lexpr is a binary express say x + y, we set lexpr to x and return a value for expr such as expr_old - y */ | |
1282 | ||
1283 | /* the approach is a little Kludgy but seems to work. I should probably use something cleaner at some point ... */ | |
1284 | ||
1285 | ||
1286 | /*@only@*/ constraintExpr constraintExpr_solveBinaryExpr (constraintExpr lexpr, /*@only@*/ constraintExpr expr) | |
3aaedf88 | 1287 | { |
1288 | constraintExpr expr1, expr2; | |
1289 | constraintExprBinaryOpKind op; | |
1290 | ||
1291 | if (lexpr->kind != binaryexpr) | |
1292 | return expr; | |
1293 | ||
1294 | expr2 = constraintExprData_binaryExprGetExpr2 (lexpr->data); | |
1295 | expr1 = constraintExprData_binaryExprGetExpr1 (lexpr->data); | |
bb25bea6 | 1296 | |
3aaedf88 | 1297 | op = constraintExprData_binaryExprGetOp (lexpr->data); |
1298 | ||
bb25bea6 | 1299 | expr1 = constraintExpr_copy(expr1); |
1300 | expr2 = constraintExpr_copy(expr2); | |
1301 | ||
b7b694d6 | 1302 | /* drl possible problem : warning make sure this works */ |
1303 | ||
1304 | lexpr->kind = expr1->kind; | |
1305 | sfree (lexpr->data); | |
1306 | ||
1307 | lexpr->data = copyExprData (expr1->data, expr1->kind); | |
1308 | constraintExpr_free(expr1); | |
1309 | ||
0c91982e | 1310 | if (op == BINARYOP_PLUS) |
b7b694d6 | 1311 | expr = constraintExpr_makeSubtractExpr (expr, expr2); |
acfb6ad9 | 1312 | else if (op == BINARYOP_MINUS) |
b7b694d6 | 1313 | expr = constraintExpr_makeAddExpr (expr, expr2); |
1314 | else | |
1315 | BADEXIT; | |
1316 | ||
1317 | ||
1318 | return expr; | |
bb25bea6 | 1319 | |
c3e695ff | 1320 | /* |
1321 | #warning this needs to be checked | |
1322 | expr = constraintExpr_solveBinaryExpr (expr1, expr); | |
1323 | ||
1324 | expr = constraintExpr_solveBinaryExpr (expr2, expr); | |
1325 | return expr; | |
1326 | */ | |
3aaedf88 | 1327 | } |
1328 | ||
bb25bea6 | 1329 | static /*@only@*/ constraintExpr constraintExpr_simplifyunaryExpr (/*@only@*/ constraintExpr c) |
3aaedf88 | 1330 | { |
1331 | constraintExpr exp; | |
1332 | ||
1333 | llassert (c->kind == unaryExpr); | |
1334 | ||
d30bc0c7 | 1335 | DPRINTF ((message ("Doing constraintExpr_simplifyunaryExpr:%s", constraintExpr_unparse (c) ) ) ); |
3aaedf88 | 1336 | |
bb7c2085 | 1337 | if ((constraintExprData_unaryExprGetOp (c->data) != MAXSET) && |
3aaedf88 | 1338 | (constraintExprData_unaryExprGetOp (c->data) != MAXREAD) ) |
1339 | { | |
1340 | return c; | |
1341 | } | |
3aaedf88 | 1342 | |
1343 | exp = constraintExprData_unaryExprGetExpr (c->data); | |
a779b61e | 1344 | exp = constraintExpr_copy(exp); |
1345 | ||
3aaedf88 | 1346 | if (exp->kind == term) |
1347 | { | |
1348 | constraintTerm cterm; | |
1349 | ||
1350 | cterm = constraintExprData_termGetTerm (exp->data); | |
1351 | ||
1352 | if (constraintTerm_isStringLiteral(cterm) ) | |
1353 | { | |
1354 | cstring val; | |
1355 | val = constraintTerm_getStringLiteral (cterm); | |
1356 | if (constraintExprData_unaryExprGetOp (c->data) == MAXSET) | |
1357 | { | |
d46ce6a4 | 1358 | constraintExpr temp; |
1359 | ||
28bf4b0b | 1360 | temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) ); |
d46ce6a4 | 1361 | cstring_free(val); |
1362 | constraintExpr_free(c); | |
a779b61e | 1363 | constraintExpr_free(exp); |
1364 | ||
d46ce6a4 | 1365 | return temp; |
a779b61e | 1366 | |
3aaedf88 | 1367 | } |
1368 | if (constraintExprData_unaryExprGetOp (c->data) == MAXREAD) | |
1369 | { | |
d46ce6a4 | 1370 | constraintExpr temp; |
1371 | ||
28bf4b0b | 1372 | temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) ); |
d46ce6a4 | 1373 | cstring_free(val); |
1374 | constraintExpr_free(c); | |
a779b61e | 1375 | constraintExpr_free(exp); |
1376 | ||
d46ce6a4 | 1377 | return temp; |
3aaedf88 | 1378 | } |
1379 | BADEXIT; | |
1380 | } | |
d30bc0c7 | 1381 | |
b7b694d6 | 1382 | /* slight Kludge to hanlde var [] = { , , }; |
1383 | ** type syntax I don't think this is sounds but it should be good | |
1384 | ** enough. The C stanrad is very confusing about initialization | |
1385 | ** -- DRL 7/25/01 | |
1386 | */ | |
d30bc0c7 | 1387 | |
1388 | if (constraintTerm_isInitBlock(cterm) ) | |
1389 | { | |
1390 | constraintExpr temp; | |
1391 | int len; | |
1392 | ||
1393 | len = constraintTerm_getInitBlockLength(cterm); | |
1394 | ||
1395 | temp = constraintExpr_makeIntLiteral (len ); | |
1396 | ||
1397 | constraintExpr_free(c); | |
1398 | DPRINTF(( message("Changed too %q", constraintExpr_print(temp) | |
1399 | ) )); | |
a779b61e | 1400 | constraintExpr_free(exp); |
d30bc0c7 | 1401 | return temp; |
1402 | } | |
1403 | ||
a779b61e | 1404 | constraintExpr_free(exp); |
3aaedf88 | 1405 | return c; |
1406 | } | |
1407 | ||
1408 | if (exp->kind != binaryexpr) | |
a779b61e | 1409 | { |
1410 | constraintExpr_free(exp); | |
1411 | return c; | |
1412 | } | |
1413 | ||
0c91982e | 1414 | if (constraintExprData_binaryExprGetOp (exp->data) == BINARYOP_PLUS ) |
3aaedf88 | 1415 | { |
1416 | ||
b7b694d6 | 1417 | /* if (constraintExpr_canGetValue (constraintExprData_binaryExprGetExpr2 (exp->data) ) ) */ |
3aaedf88 | 1418 | { |
1419 | ||
4ab867d6 | 1420 | constraintExpr temp, temp2; |
3aaedf88 | 1421 | |
bb7c2085 | 1422 | DPRINTF ((message ("Doing fancy simplification") ) ); |
3aaedf88 | 1423 | |
1424 | temp = constraintExprData_binaryExprGetExpr2 (exp->data); | |
1425 | ||
1426 | temp2 = constraintExprData_binaryExprGetExpr1 (exp->data); | |
d46ce6a4 | 1427 | |
1428 | temp2 = constraintExpr_copy(temp2); | |
3aaedf88 | 1429 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp2); |
1430 | ||
1431 | ||
bb25bea6 | 1432 | temp = constraintExpr_copy (temp); |
1433 | ||
2934b455 | 1434 | c = constraintExpr_makeSubtractExpr (c, temp); |
3aaedf88 | 1435 | |
bb7c2085 | 1436 | DPRINTF ((message ("Done fancy simplification:%s", constraintExpr_unparse (c) ) ) ); |
3aaedf88 | 1437 | } |
1438 | } | |
1439 | ||
bb7c2085 | 1440 | DPRINTF ((message ("constraintExpr_simplifyUnaryExpr: Done simplification:%s", constraintExpr_unparse (c) ) ) ); |
a779b61e | 1441 | |
1442 | constraintExpr_free(exp); | |
3aaedf88 | 1443 | return c; |
1444 | } | |
1445 | ||
1446 | ||
bb25bea6 | 1447 | /*@only@*/ constraintExpr constraintExpr_simplify (/*@only@*/ constraintExpr c) |
3aaedf88 | 1448 | { |
1449 | constraintExprKind kind; | |
bb25bea6 | 1450 | constraintExpr ret; |
3aaedf88 | 1451 | constraintTerm t; |
3aaedf88 | 1452 | |
bb7c2085 | 1453 | DPRINTF ((message ("Doing constraintExpr_simplify:%s", constraintExpr_unparse (c) ) ) ); |
bb25bea6 | 1454 | |
3aaedf88 | 1455 | |
bb25bea6 | 1456 | /*@i22*/ |
3aaedf88 | 1457 | |
11db3170 | 1458 | /* drl: I think this is an Splint bug */ |
bb25bea6 | 1459 | |
1460 | ret = constraintExpr_copy(c); | |
1461 | ||
1462 | constraintExpr_free(c); | |
1463 | ||
1464 | ret = constraintExpr_simplifyChildren (ret); | |
1465 | ||
1466 | ret = constraintExpr_combineConstants (ret); | |
1467 | ||
1468 | ret = constraintExpr_simplifyChildren (ret); | |
1469 | ||
1470 | ||
1471 | kind = ret->kind; | |
3aaedf88 | 1472 | |
1473 | switch (kind) | |
1474 | { | |
1475 | case term: | |
bb25bea6 | 1476 | t = constraintExprData_termGetTerm (ret->data); |
d46ce6a4 | 1477 | t = constraintTerm_copy(t); |
3aaedf88 | 1478 | t = constraintTerm_simplify (t); |
bb25bea6 | 1479 | ret->data = constraintExprData_termSetTerm (ret->data, t); |
3aaedf88 | 1480 | break; |
1481 | case unaryExpr: | |
bb25bea6 | 1482 | ret = constraintExpr_simplifyunaryExpr (ret); |
3aaedf88 | 1483 | break; |
1484 | case binaryexpr: | |
bb25bea6 | 1485 | ret = constraintExpr_simplifybinaryExpr (ret); |
3aaedf88 | 1486 | break; |
1487 | default: | |
1488 | llassert(FALSE); | |
bb25bea6 | 1489 | } |
1490 | ||
bb7c2085 | 1491 | DPRINTF ((message ("constraintExpr_simplify returning :%s", constraintExpr_unparse (ret) ) ) ); |
bb25bea6 | 1492 | return ret; |
3aaedf88 | 1493 | |
1494 | } | |
1495 | ||
bb25bea6 | 1496 | /*@only@*/ |
4ab867d6 | 1497 | cstring constraintExpr_unparse (/*@temp@*/ /*@observer@*/ constraintExpr ex) /*@*/ |
3aaedf88 | 1498 | { |
1499 | cstring st; | |
1500 | constraintExprKind kind; | |
1501 | ||
1502 | llassert (ex != NULL); | |
1503 | ||
1504 | kind = ex->kind; | |
1505 | ||
1506 | switch (kind) | |
1507 | { | |
1508 | case term: | |
a779b61e | 1509 | |
1510 | if (context_getFlag (FLG_PARENCONSTRAINT) ) | |
1511 | { | |
1512 | st = message ("(%q) ", constraintTerm_print (constraintExprData_termGetTerm (ex->data))); | |
1513 | } | |
1514 | else | |
1515 | { | |
1516 | st = message ("%q", constraintTerm_print (constraintExprData_termGetTerm (ex->data))); | |
1517 | } | |
3aaedf88 | 1518 | break; |
1519 | case unaryExpr: | |
a779b61e | 1520 | st = message ("%q(%q)", |
1521 | constraintExprUnaryOpKind_print (constraintExprData_unaryExprGetOp (ex->data) ), | |
3aaedf88 | 1522 | constraintExpr_unparse (constraintExprData_unaryExprGetExpr (ex->data) ) |
1523 | ); | |
1524 | break; | |
1525 | case binaryexpr: | |
a779b61e | 1526 | if (context_getFlag (FLG_PARENCONSTRAINT) ) |
1527 | { | |
1528 | st = message ("(%q) %q (%q)", | |
3aaedf88 | 1529 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ), |
1530 | constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data) | |
1531 | ), | |
1532 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) ) | |
1533 | ); | |
a779b61e | 1534 | } |
1535 | else | |
1536 | { | |
1537 | st = message ("%q %q %q", | |
1538 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ), | |
1539 | constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data) | |
1540 | ), | |
1541 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) ) | |
1542 | ); | |
1543 | } | |
1544 | ||
3aaedf88 | 1545 | break; |
1546 | default: | |
1547 | llassert(FALSE); | |
1548 | st = message ("error"); | |
1549 | ||
1550 | } | |
1551 | ||
1552 | DPRINTF((message ("constraintExpr_unparse: '%s'",st) ) ); | |
1553 | return st; | |
1554 | } | |
1555 | ||
1556 | constraintExpr constraintExpr_doSRefFixBaseParam (/*@returned@*/ constraintExpr expr, exprNodeList arglist) | |
1557 | { | |
1558 | constraintTerm Term; | |
1559 | constraintExprKind kind; | |
1560 | constraintExpr expr1, expr2; | |
1561 | constraintExprData data; | |
1562 | llassert (expr != NULL); | |
1563 | ||
1564 | data = expr->data; | |
1565 | ||
1566 | kind = expr->kind; | |
1567 | ||
1568 | switch (kind) | |
1569 | { | |
1570 | case term: | |
1571 | Term = constraintExprData_termGetTerm(data); | |
d46ce6a4 | 1572 | Term = constraintTerm_copy(Term); |
1573 | ||
3aaedf88 | 1574 | Term = constraintTerm_doSRefFixBaseParam (Term, arglist); |
1575 | data = constraintExprData_termSetTerm(data, Term); | |
1576 | break; | |
1577 | case unaryExpr: | |
1578 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1579 | expr1 = constraintExpr_copy(expr1); |
1580 | ||
3aaedf88 | 1581 | expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist); |
1582 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1583 | break; | |
1584 | case binaryexpr: | |
1585 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1586 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1587 | ||
d46ce6a4 | 1588 | expr1 = constraintExpr_copy(expr1); |
1589 | expr2 = constraintExpr_copy(expr2); | |
1590 | ||
3aaedf88 | 1591 | expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist); |
1592 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1593 | expr2 = constraintExpr_doSRefFixBaseParam (expr2, arglist); | |
1594 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1595 | ||
1596 | break; | |
1597 | default: | |
1598 | llassert(FALSE); | |
1599 | data = NULL; | |
1600 | } | |
1601 | return expr; | |
1602 | } | |
1603 | ||
86d93ed3 | 1604 | /* |
1605 | / *@only@* / constraintExpr constraintExpr_doSRefFixInvarConstraint (/ *@only@* / constraintExpr expr, sRef s, ctype ct) | |
1606 | { | |
1607 | constraintExprKind kind; | |
1608 | constraintExpr expr1, expr2; | |
1609 | constraintExprData data; | |
1610 | llassert (expr != NULL); | |
1611 | ||
1612 | data = expr->data; | |
1613 | ||
1614 | kind = expr->kind; | |
1615 | ||
1616 | switch (kind) | |
1617 | { | |
1618 | case term: | |
1619 | expr = doSRefFixInvarConstraintTerm (expr, s, ct); | |
1620 | break; | |
1621 | case unaryExpr: | |
1622 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
1623 | expr1 = constraintExpr_copy(expr1); | |
1624 | expr1 = constraintExpr_doSRefFixInvarConstraint (expr1, s, ct); | |
1625 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1626 | break; | |
1627 | case binaryexpr: | |
1628 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1629 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1630 | ||
1631 | expr1 = constraintExpr_copy(expr1); | |
1632 | expr2 = constraintExpr_copy(expr2); | |
1633 | ||
1634 | expr1 = constraintExpr_doSRefFixInvarConstraint (expr1, s, ct); | |
1635 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1636 | expr2 = constraintExpr_doSRefFixInvarConstraint (expr2, s, ct); | |
1637 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1638 | ||
1639 | break; | |
1640 | default: | |
1641 | llassert(FALSE); | |
1642 | data = NULL; | |
1643 | } | |
1644 | return expr; | |
1645 | } | |
1646 | */ | |
1647 | ||
d46ce6a4 | 1648 | /*@only@*/ constraintExpr constraintExpr_doSRefFixConstraintParam (/*@only@*/ constraintExpr expr, exprNodeList arglist) /*@modifies expr@*/ |
3aaedf88 | 1649 | { |
1650 | constraintExprKind kind; | |
1651 | constraintExpr expr1, expr2; | |
1652 | constraintExprData data; | |
1653 | llassert (expr != NULL); | |
1654 | ||
1655 | data = expr->data; | |
1656 | ||
1657 | kind = expr->kind; | |
1658 | ||
1659 | switch (kind) | |
1660 | { | |
1661 | case term: | |
c3e695ff | 1662 | expr = doSRefFixConstraintParamTerm (expr, arglist); |
3aaedf88 | 1663 | break; |
1664 | case unaryExpr: | |
1665 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1666 | expr1 = constraintExpr_copy(expr1); |
3aaedf88 | 1667 | expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist); |
1668 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1669 | break; | |
1670 | case binaryexpr: | |
1671 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1672 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1673 | ||
d46ce6a4 | 1674 | expr1 = constraintExpr_copy(expr1); |
1675 | expr2 = constraintExpr_copy(expr2); | |
1676 | ||
3aaedf88 | 1677 | expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist); |
1678 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1679 | expr2 = constraintExpr_doSRefFixConstraintParam (expr2, arglist); | |
1680 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1681 | ||
1682 | break; | |
1683 | default: | |
1684 | llassert(FALSE); | |
1685 | data = NULL; | |
1686 | } | |
1687 | return expr; | |
1688 | } | |
1689 | ||
28bf4b0b | 1690 | /*@only@*/ constraintExpr constraintExpr_doFixResult (/*@only@*/ constraintExpr expr, /*@observer@*/ exprNode fcnCall) |
3aaedf88 | 1691 | { |
1692 | constraintExprKind kind; | |
1693 | constraintExpr expr1, expr2; | |
1694 | constraintExprData data; | |
1695 | llassert (expr != NULL); | |
1696 | ||
1697 | data = expr->data; | |
1698 | ||
1699 | kind = expr->kind; | |
1700 | ||
1701 | switch (kind) | |
1702 | { | |
1703 | case term: | |
c3e695ff | 1704 | expr = doFixResultTerm (expr, fcnCall); |
3aaedf88 | 1705 | break; |
1706 | case unaryExpr: | |
1707 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1708 | expr1 = constraintExpr_copy(expr1); |
1709 | ||
3aaedf88 | 1710 | expr1 = constraintExpr_doFixResult (expr1, fcnCall); |
1711 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1712 | break; | |
1713 | case binaryexpr: | |
1714 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1715 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1716 | ||
d46ce6a4 | 1717 | expr1 = constraintExpr_copy(expr1); |
1718 | expr2 = constraintExpr_copy(expr2); | |
1719 | ||
3aaedf88 | 1720 | expr1 = constraintExpr_doFixResult (expr1, fcnCall); |
1721 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1722 | expr2 = constraintExpr_doFixResult (expr2, fcnCall); | |
1723 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1724 | ||
1725 | break; | |
1726 | default: | |
1727 | llassert(FALSE); | |
1728 | data = NULL; | |
1729 | } | |
1730 | return expr; | |
1731 | } | |
1732 | ||
dc92450f | 1733 | cstring constraintExpr_print (constraintExpr expr) /*@*/ |
3aaedf88 | 1734 | { |
b9904f57 | 1735 | return constraintExpr_unparse (expr); |
3aaedf88 | 1736 | } |
1737 | ||
dc92450f | 1738 | bool constraintExpr_hasMaxSet (constraintExpr expr) /*@*/ |
3aaedf88 | 1739 | { |
1740 | cstring t; | |
1741 | ||
1742 | t = constraintExpr_unparse(expr); | |
1743 | ||
03d670b6 | 1744 | if (cstring_containsLit(t, "maxSet") != NULL ) |
d46ce6a4 | 1745 | { |
1746 | cstring_free(t); | |
1747 | return (TRUE); | |
1748 | } | |
c3e695ff | 1749 | else |
d46ce6a4 | 1750 | { |
1751 | cstring_free(t); | |
1752 | return FALSE; | |
1753 | } | |
3aaedf88 | 1754 | } |
1755 | ||
1756 | ||
1757 | ||
1758 | /*returns 1 0 -1 like strcmp | |
1759 | 1 => expr1 > expr2 | |
1760 | 0 => expr1 == expr2 | |
1761 | -1 => expr1 < expr2 | |
1762 | */ | |
b9904f57 | 1763 | |
3aaedf88 | 1764 | int constraintExpr_compare (constraintExpr expr1, constraintExpr expr2) |
1765 | { | |
b9904f57 | 1766 | long value1, value2; |
3aaedf88 | 1767 | |
1768 | if (constraintExpr_similar (expr1, expr2) ) | |
1769 | { | |
1770 | return 0; | |
1771 | } | |
b9904f57 | 1772 | |
3aaedf88 | 1773 | value1 = constraintExpr_getValue(expr1); |
1774 | value2 = constraintExpr_getValue(expr2); | |
1775 | ||
1776 | if (value1 > value2) | |
1777 | return 1; | |
1778 | ||
1779 | if (value1 == value2) | |
1780 | return 0; | |
1781 | ||
1782 | else | |
1783 | return -1; | |
1784 | } | |
1785 | ||
b9904f57 | 1786 | long constraintExpr_getValue (constraintExpr expr) |
3aaedf88 | 1787 | { |
1788 | llassert (expr->kind == term); | |
b9904f57 | 1789 | return (constraintTerm_getValue (constraintExprData_termGetTerm (expr->data))); |
3aaedf88 | 1790 | } |
1791 | ||
1792 | bool constraintExpr_canGetValue (constraintExpr expr) | |
1793 | { | |
1794 | switch (expr->kind) | |
1795 | { | |
1796 | case term: | |
1797 | return constraintTerm_canGetValue (constraintExprData_termGetTerm (expr->data) ); | |
1798 | default: | |
1799 | return FALSE; | |
1800 | ||
1801 | } | |
c3e695ff | 1802 | |
1803 | BADEXIT; | |
3aaedf88 | 1804 | } |
1805 | ||
3aaedf88 | 1806 | fileloc constraintExpr_getFileloc (constraintExpr expr) |
1807 | { | |
1808 | constraintExpr e; | |
1809 | constraintTerm t; | |
1810 | constraintExprKind kind; | |
1811 | ||
1812 | kind = expr->kind; | |
1813 | ||
1814 | switch (kind) | |
1815 | { | |
1816 | case term: | |
1817 | t = constraintExprData_termGetTerm (expr->data); | |
1818 | return (constraintTerm_getFileloc (t) ); | |
c3e695ff | 1819 | /*@notreached@*/ |
3aaedf88 | 1820 | break; |
1821 | case unaryExpr: | |
1822 | e = constraintExprData_unaryExprGetExpr (expr->data); | |
1823 | return (constraintExpr_getFileloc (e) ); | |
c3e695ff | 1824 | /*@notreached@*/ |
3aaedf88 | 1825 | break; |
1826 | case binaryexpr: | |
1827 | e = constraintExprData_binaryExprGetExpr1 (expr->data); | |
1828 | return (constraintExpr_getFileloc (e) ); | |
c3e695ff | 1829 | /*@notreached@*/ |
1830 | break; | |
3aaedf88 | 1831 | } |
1832 | llassert (FALSE); | |
3aaedf88 | 1833 | return (fileloc_undefined); |
1834 | } | |
1835 | ||
c3e695ff | 1836 | /*drl moved from constriantTerm.c 5/20/001*/ |
4ab867d6 | 1837 | static /*@only@*/ constraintExpr |
1838 | doFixResultTerm (/*@only@*/ constraintExpr e, /*@exposed@*/ exprNode fcnCall) | |
c3e695ff | 1839 | { |
1840 | constraintTerm t; | |
1841 | sRef s; | |
1842 | /*maybe this should move to cosntraintExpr.c -drl7x 5/18/01*/ | |
a779b61e | 1843 | /*@i22*/ |
1844 | ||
1845 | constraintExprData data = e->data; | |
1846 | constraintExprKind kind = e->kind; | |
c3e695ff | 1847 | |
1848 | constraintExpr ret; | |
1849 | ||
1850 | llassert(kind == term); | |
1851 | ||
1852 | t = constraintExprData_termGetTerm (data); | |
28bf4b0b | 1853 | llassert (constraintTerm_isDefined(t) ); |
c3e695ff | 1854 | |
1855 | ret = e; | |
a8e557d3 | 1856 | switch (constraintTerm_getKind(t) ) |
c3e695ff | 1857 | { |
1858 | case EXPRNODE: | |
1859 | break; | |
1860 | case INTLITERAL: | |
1861 | break; | |
1862 | ||
1863 | case SREF: | |
a8e557d3 | 1864 | s = constraintTerm_getSRef(t); |
c3e695ff | 1865 | if (sRef_isResult (s)) |
1866 | { | |
1867 | ret = constraintExpr_makeExprNode(fcnCall); | |
4ab867d6 | 1868 | constraintExpr_free(e); |
1869 | e = NULL; | |
1870 | } | |
1871 | else | |
1872 | { | |
1873 | e = NULL; | |
c3e695ff | 1874 | } |
1875 | break; | |
1876 | default: | |
1877 | BADEXIT; | |
1878 | } | |
1879 | ||
1880 | return ret; | |
1881 | ||
1882 | } | |
86d93ed3 | 1883 | /* |
1884 | / *@only@* / static constraintExpr | |
1885 | doSRefFixInvarConstraintTerm (/ *@only@* / constraintExpr e, | |
1886 | sRef s, ctype ct) | |
1887 | { | |
1888 | constraintTerm t; | |
1889 | ||
1890 | constraintExprData data = e->data; | |
1891 | ||
1892 | constraintExprKind kind = e->kind; | |
1893 | ||
1894 | constraintExpr ret; | |
c3e695ff | 1895 | |
86d93ed3 | 1896 | llassert(kind == term); |
1897 | ||
1898 | t = constraintExprData_termGetTerm (data); | |
1899 | llassert (constraintTerm_isDefined(t) ); | |
1900 | ||
1901 | ret = e; | |
1902 | ||
1903 | DPRINTF (("Fixing: %s", constraintExpr_print (e))); | |
1904 | ||
1905 | switch (constraintTerm_getKind(t)) | |
1906 | { | |
1907 | case EXPRNODE: | |
1908 | DPRINTF((message ("%q @ %q ", constraintTerm_print(t), | |
1909 | fileloc_unparse (constraintTerm_getFileloc(t) ) ) )); | |
1910 | break; | |
1911 | case INTLITERAL: | |
1912 | DPRINTF((message (" %q ", constraintTerm_print (t)) )); | |
1913 | break; | |
1914 | ||
1915 | case SREF: | |
1916 | / * evans 2001-07-24: constants should use the original term * / | |
1917 | if (!constraintTerm_canGetValue (t)) | |
1918 | { | |
1919 | sRef snew; | |
1920 | DPRINTF ((message("Doing sRef_fixInvarConstraint for %q ", | |
1921 | constraintTerm_print (t) ) )); | |
1922 | ||
1923 | snew = fixSref (ct, s, constraintTerm_getSRef(t)); | |
1924 | ||
1925 | ret = constraintExpr_makeTermsRef(snew); | |
1926 | ||
1927 | constraintExpr_free (e); | |
1928 | ||
1929 | DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ", | |
1930 | constraintExpr_print (ret) ) )); | |
1931 | / *@-branchstate@* / | |
1932 | } / *@=branchstate@* / | |
1933 | ||
1934 | break; | |
1935 | default: | |
1936 | BADEXIT; | |
1937 | } | |
1938 | ||
1939 | return ret; | |
1940 | ||
1941 | } | |
1942 | */ | |
1943 | ||
c3e695ff | 1944 | /*drl moved from constriantTerm.c 5/20/001*/ |
d46ce6a4 | 1945 | /*@only@*/ static constraintExpr |
4ab867d6 | 1946 | doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr e, /*@observer@*/ /*@temp@*/ exprNodeList arglist) |
c3e695ff | 1947 | { |
1948 | constraintTerm t; | |
1949 | ||
d46ce6a4 | 1950 | constraintExprData data = e->data; |
c3e695ff | 1951 | |
d46ce6a4 | 1952 | constraintExprKind kind = e->kind; |
c3e695ff | 1953 | |
1954 | constraintExpr ret; | |
1955 | ||
1956 | llassert(kind == term); | |
1957 | ||
1958 | t = constraintExprData_termGetTerm (data); | |
28bf4b0b | 1959 | llassert (constraintTerm_isDefined(t) ); |
c3e695ff | 1960 | |
1961 | ret = e; | |
b9904f57 | 1962 | |
1963 | DPRINTF (("Fixing: %s", constraintExpr_print (e))); | |
1964 | ||
1965 | switch (constraintTerm_getKind(t)) | |
c3e695ff | 1966 | { |
1967 | case EXPRNODE: | |
bb25bea6 | 1968 | DPRINTF((message ("%q @ %q ", constraintTerm_print(t), |
1969 | fileloc_unparse (constraintTerm_getFileloc(t) ) ) )); | |
c3e695ff | 1970 | break; |
1971 | case INTLITERAL: | |
bb25bea6 | 1972 | DPRINTF((message (" %q ", constraintTerm_print (t)) )); |
d46ce6a4 | 1973 | break; |
c3e695ff | 1974 | |
1975 | case SREF: | |
b9904f57 | 1976 | /* evans 2001-07-24: constants should use the original term */ |
1977 | if (!constraintTerm_canGetValue (t)) | |
1978 | { | |
1979 | DPRINTF ((message("Doing sRef_fixConstraintParam for %q ", | |
1980 | constraintTerm_print (t) ) )); | |
1981 | ret = sRef_fixConstraintParam (constraintTerm_getSRef(t), arglist); | |
1982 | ||
1983 | constraintExpr_free (e); | |
1984 | ||
1985 | DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ", | |
1986 | constraintExpr_print (ret) ) )); | |
1987 | /*@-branchstate@*/ | |
1988 | } /*@=branchstate@*/ | |
d46ce6a4 | 1989 | |
c3e695ff | 1990 | break; |
1991 | default: | |
1992 | BADEXIT; | |
1993 | } | |
b9904f57 | 1994 | |
c3e695ff | 1995 | return ret; |
1996 | ||
1997 | } | |
3aaedf88 | 1998 | |
1999 | ||
2000 | /* bool constraintExpr_includesTerm (constraintExpr expr, constraintTerm term) */ | |
2001 | /* { */ | |
2002 | /* if (constraintTerm_hasTerm (expr->term, term) ) */ | |
2003 | /* return TRUE; */ | |
2004 | ||
bb7c2085 | 2005 | /* if ((expr->expr) != NULL) */ |
3aaedf88 | 2006 | /* { */ |
2007 | /* return ( constraintExpr_includesTerm (expr->expr, term) ); */ | |
2008 | /* } */ | |
2009 | /* return FALSE; */ | |
2010 | ||
2011 | /* } */ | |
2012 | ||
bb25bea6 | 2013 | /*drl added 6/11/01 */ |
2014 | bool constraintExpr_isBinaryExpr (/*@observer@*/ constraintExpr c) | |
2015 | { | |
2016 | if (c->kind == binaryexpr) | |
2017 | return TRUE; | |
3aaedf88 | 2018 | |
bb25bea6 | 2019 | else |
2020 | return FALSE; | |
2021 | } | |
3aaedf88 | 2022 | |
a779b61e | 2023 | /*drl added 8/08/001 */ |
2024 | bool constraintExpr_isTerm (/*@observer@*/ constraintExpr c) /*@*/ | |
2025 | { | |
2026 | if (c->kind == term) | |
2027 | return TRUE; | |
2028 | ||
2029 | else | |
2030 | return FALSE; | |
2031 | } | |
2032 | ||
2033 | /*@observer@*/ /*@temp@*/ constraintTerm constraintExpr_getTerm ( /*@temp@*/ /*@observer@*/ constraintExpr c) /*@*/ | |
2034 | { | |
2035 | constraintTerm term; | |
2036 | ||
2037 | llassert(constraintExpr_isTerm(c) ); | |
2038 | ||
2039 | term = constraintExprData_termGetTerm(c->data); | |
2040 | ||
2041 | return term; | |
2042 | } | |
2043 | ||
920a3797 | 2044 | static void binaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f) |
2045 | { | |
2046 | constraintExpr expr1; | |
2047 | constraintExprBinaryOpKind binaryOp; | |
2048 | constraintExpr expr2; | |
2049 | ||
2050 | ||
2051 | binaryOp = constraintExprData_binaryExprGetOp (data); | |
2052 | ||
2053 | fprintf(f, "%d\n", (int) binaryOp); | |
2054 | ||
2055 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
2056 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
2057 | ||
2058 | fprintf(f, "e1\n"); | |
2059 | ||
2060 | constraintExpr_dump(expr1, f); | |
2061 | ||
2062 | fprintf(f, "e2\n"); | |
2063 | constraintExpr_dump(expr2, f); | |
2064 | } | |
2065 | ||
2066 | ||
2067 | static constraintExpr binaryExpr_undump (FILE *f) | |
2068 | { | |
2069 | constraintExpr expr1; | |
2070 | constraintExprBinaryOpKind binaryOp; | |
2071 | constraintExpr expr2; | |
2072 | ||
2073 | constraintExpr ret; | |
2074 | ||
2075 | ||
2076 | ||
2077 | char * str; | |
2078 | char * os; | |
2079 | ||
3be9a165 | 2080 | os = mstring_create (MAX_DUMP_LINE_LENGTH); |
2081 | ||
920a3797 | 2082 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); |
2083 | ||
2084 | ||
28bf4b0b | 2085 | binaryOp = (constraintExprBinaryOpKind) reader_getInt(&str); |
920a3797 | 2086 | |
2087 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2088 | ||
28bf4b0b | 2089 | reader_checkChar (&str, 'e'); |
2090 | reader_checkChar (&str, '1'); | |
920a3797 | 2091 | |
2092 | expr1 = constraintExpr_undump (f); | |
2093 | ||
2094 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2095 | ||
28bf4b0b | 2096 | reader_checkChar (&str, 'e'); |
2097 | reader_checkChar (&str, '2'); | |
920a3797 | 2098 | |
2099 | expr2 = constraintExpr_undump (f); | |
2100 | ||
2101 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2); | |
2102 | ret->data = constraintExprData_binaryExprSetOp(ret->data, binaryOp); | |
2103 | ||
2104 | free(os); | |
2105 | return ret; | |
2106 | } | |
2107 | ||
2108 | ||
2109 | ||
2110 | static void unaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f) | |
2111 | { | |
2112 | ||
2113 | constraintExpr expr; | |
2114 | constraintExprUnaryOpKind unaryOp; | |
2115 | ||
2116 | unaryOp = constraintExprData_unaryExprGetOp (data); | |
2117 | ||
2118 | fprintf(f, "%d\n", (int) unaryOp); | |
2119 | ||
2120 | expr = constraintExprData_unaryExprGetExpr (data); | |
2121 | ||
2122 | constraintExpr_dump(expr, f); | |
2123 | } | |
2124 | ||
2125 | static constraintExpr unaryExpr_undump ( FILE *f) | |
2126 | { | |
2127 | ||
2128 | constraintExpr expr; | |
2129 | constraintExprUnaryOpKind unaryOp; | |
2130 | constraintExpr ret; | |
2131 | ||
2132 | char * str; | |
2133 | char * os; | |
2134 | ||
2135 | str = mstring_create (MAX_DUMP_LINE_LENGTH); | |
2136 | os = str; | |
2137 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2138 | ||
28bf4b0b | 2139 | unaryOp = (constraintExprUnaryOpKind) reader_getInt(&str); |
920a3797 | 2140 | |
2141 | expr = constraintExpr_undump (f); | |
2142 | ||
2143 | ret = constraintExpr_makeUnaryOp (expr, unaryOp); | |
2144 | ||
2145 | free(os); | |
2146 | ||
2147 | return ret; | |
2148 | } | |
2149 | ||
2150 | void constraintExpr_dump (/*@observer@*/ constraintExpr expr, FILE *f) | |
2151 | { | |
2152 | constraintExprKind kind; | |
2153 | constraintTerm t; | |
2154 | ||
0f9b7373 | 2155 | |
2156 | DPRINTF((message("constraintExpr_dump:: dumping constraintExpr %s", | |
2157 | constraintExpr_unparse(expr) | |
2158 | ) )); | |
920a3797 | 2159 | |
2160 | kind = expr->kind; | |
2161 | ||
2162 | fprintf(f,"%d\n", (int) kind); | |
2163 | ||
2164 | switch (kind) | |
2165 | { | |
2166 | case term: | |
2167 | t = constraintExprData_termGetTerm (expr->data); | |
2168 | constraintTerm_dump (t, f); | |
2169 | break; | |
2170 | case unaryExpr: | |
2171 | unaryExpr_dump (expr->data, f); | |
2172 | break; | |
2173 | case binaryexpr: | |
2174 | binaryExpr_dump (expr->data, f); | |
2175 | break; | |
2176 | } | |
2177 | } | |
2178 | ||
2179 | /*@only@*/ constraintExpr constraintExpr_undump (FILE *f) | |
2180 | { | |
2181 | constraintExprKind kind; | |
2182 | constraintTerm t; | |
2183 | constraintExpr ret; | |
2184 | ||
2185 | char * s; | |
2186 | char * os; | |
2187 | ||
2188 | s = mstring_create (MAX_DUMP_LINE_LENGTH); | |
2189 | ||
2190 | os = s; | |
2191 | ||
2192 | s = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2193 | ||
28bf4b0b | 2194 | kind = (constraintExprKind) reader_getInt(&s); |
920a3797 | 2195 | |
2196 | free (os); | |
2197 | ||
2198 | switch (kind) | |
2199 | { | |
2200 | case term: | |
2201 | t = constraintTerm_undump (f); | |
2202 | ret = constraintExpr_makeTerm(t); | |
2203 | break; | |
2204 | case unaryExpr: | |
2205 | ret = unaryExpr_undump (f); | |
2206 | break; | |
2207 | case binaryexpr: | |
2208 | ret = binaryExpr_undump (f); | |
2209 | break; | |
2210 | } | |
2211 | ||
2212 | return ret; | |
2213 | ||
2214 | } | |
a779b61e | 2215 | |
2216 | int constraintExpr_getDepth (constraintExpr ex) | |
2217 | { | |
2218 | int ret; | |
2219 | ||
2220 | constraintExprKind kind; | |
2221 | ||
2222 | llassert (ex != NULL); | |
2223 | ||
2224 | kind = ex->kind; | |
2225 | ||
2226 | switch (kind) | |
2227 | { | |
2228 | case term: | |
2229 | ret = 1; | |
2230 | break; | |
2231 | case unaryExpr: | |
2232 | ret = constraintExpr_getDepth (constraintExprData_unaryExprGetExpr (ex->data) ); | |
2233 | ret++; | |
2234 | ||
2235 | break; | |
2236 | case binaryexpr: | |
2237 | ret = 0; | |
2238 | ret = constraintExpr_getDepth (constraintExprData_binaryExprGetExpr1 (ex->data) ); | |
2239 | ||
2240 | ret++; | |
2241 | ||
2242 | ret += constraintExpr_getDepth (constraintExprData_binaryExprGetExpr2 (ex->data) ); | |
2243 | ||
2244 | break; | |
2245 | default: | |
2246 | BADEXIT; | |
2247 | } | |
2248 | ||
2249 | return ret; | |
2250 | } | |
2251 | ||
2252 | ||
86d93ed3 | 2253 | bool constraintExpr_canGetCType (constraintExpr e) /*@*/ |
2254 | { | |
2255 | if (e->kind == term) | |
2256 | { | |
2257 | return TRUE; | |
2258 | } | |
2259 | else | |
2260 | { | |
2261 | DPRINTF(( message("constraintExpr_canGetCType: can't get type for %s ", | |
2262 | constraintExpr_print(e) ) )); | |
2263 | return FALSE; | |
2264 | } | |
2265 | } | |
2266 | ||
2267 | ctype constraintExpr_getCType (constraintExpr e) /*@*/ | |
2268 | { | |
2269 | constraintTerm t; | |
2270 | ||
2271 | llassert(constraintExpr_canGetCType(e) ); | |
2272 | ||
2273 | switch (e->kind) | |
2274 | { | |
2275 | case term: | |
2276 | t = constraintExprData_termGetTerm (e->data); | |
2277 | return (constraintTerm_getCType(t) ); | |
2278 | /* assume that a unary expression will be an int ... */ | |
2279 | case unaryExpr: | |
2280 | return ctype_signedintegral; | |
2281 | ||
2282 | /* drl for just return type of first operand */ | |
2283 | case binaryexpr: | |
2284 | return ( | |
2285 | constraintExpr_getCType | |
2286 | (constraintExprData_binaryExprGetExpr1 (e->data) ) | |
2287 | ); | |
2288 | default: | |
2289 | BADEXIT; | |
2290 | } | |
2291 | BADEXIT; | |
2292 | } | |
2293 | ||
2294 | /* drl add 10-5-001 */ | |
2295 | ||
2296 | static bool constraintExpr_hasTypeChange(constraintExpr e) | |
2297 | { | |
2298 | if (constraintExpr_isDefined((e)) && (e->ct == TRUE) ) | |
2299 | { | |
2300 | return TRUE; | |
2301 | } | |
2302 | ||
2303 | if (e->kind == unaryExpr) | |
2304 | { | |
2305 | if (constraintExprData_unaryExprGetOp (e->data) == MAXSET) | |
2306 | { | |
2307 | constraintExpr ce; | |
2308 | ||
2309 | ce = constraintExprData_unaryExprGetExpr(e->data); | |
2310 | ||
2311 | return (constraintExpr_hasTypeChange(ce) ); | |
2312 | } | |
2313 | ||
2314 | } | |
2315 | return FALSE; | |
2316 | } | |
2317 | ||
2318 | /* drl add 10-5-001 */ | |
2319 | ||
2320 | static ctype constraintExpr_getOrigType (constraintExpr e) | |
2321 | { | |
2322 | ||
2323 | llassert(constraintExpr_hasTypeChange(e) ); | |
2324 | ||
2325 | ||
2326 | if (e->ct == TRUE) | |
2327 | { | |
2328 | return e->origType; | |
2329 | } | |
2330 | ||
2331 | if (e->kind == unaryExpr) | |
2332 | { | |
2333 | if (constraintExprData_unaryExprGetOp (e->data) == MAXSET) | |
2334 | { | |
2335 | constraintExpr ce; | |
2336 | ||
2337 | ce = constraintExprData_unaryExprGetExpr(e->data); | |
2338 | ||
2339 | return (constraintExpr_getOrigType(ce) ); | |
2340 | } | |
2341 | ||
2342 | } | |
2343 | ||
2344 | BADEXIT; | |
2345 | } | |
2346 | ||
2347 | /*drl added these around 10/18/001*/ | |
2348 | ||
2349 | static /*@only@*/ constraintExpr constraintExpr_div (/*@only@*/ constraintExpr e, /*@unused@*/ ctype ct) | |
2350 | { | |
2351 | return e; | |
2352 | } | |
2353 | ||
2354 | static /*@only@*/ constraintExpr constraintTerm_simpleDivTypeExprNode(/*@only@*/ constraintExpr e, ctype ct) | |
2355 | { | |
2356 | exprData data; | |
2357 | exprNode t1, t2, expr; | |
2358 | lltok tok; | |
2359 | constraintTerm t; | |
2360 | ||
2361 | DPRINTF(( | |
2362 | message("constraintTerm_simpleDivTypeExprNode e=%s, ct=%s", | |
2363 | constraintExpr_print(e), ctype_unparse(ct) | |
2364 | ) | |
2365 | )); | |
2366 | ||
2367 | t = constraintExprData_termGetTerm(e->data); | |
2368 | ||
2369 | expr = constraintTerm_getExprNode(t); | |
2370 | ||
2371 | if (expr->kind == XPR_OP) | |
2372 | { | |
2373 | data = expr->edata; | |
2374 | ||
2375 | t1 = exprData_getOpA (data); | |
2376 | t2 = exprData_getOpB (data); | |
2377 | tok = exprData_getOpTok (data); | |
2378 | if (lltok_isMult(tok) ) | |
2379 | { | |
2380 | ||
2381 | if ((t1->kind == XPR_SIZEOF) || (t1->kind == XPR_SIZEOFT) ) | |
2382 | { | |
2383 | ctype ct2; | |
2384 | ||
2385 | if (t1->kind == XPR_SIZEOFT) | |
2386 | { | |
2387 | ct2 = qtype_getType (exprData_getType (t1->edata)); | |
2388 | } | |
2389 | else | |
2390 | { | |
2391 | ct2 = qtype_getType (exprData_getType(exprData_getSingle (t1->edata)->edata ) ); | |
2392 | } | |
2393 | if (ctype_match (ctype_makePointer(ct2), ct) ) | |
2394 | { | |
2395 | /* this is a bit sloopy but ... */ | |
2396 | constraintExpr_free(e); | |
2397 | return constraintExpr_makeExprNode(t2); | |
2398 | } | |
2399 | } | |
2400 | ||
2401 | ||
2402 | else if ((t2->kind == XPR_SIZEOF) || (t2->kind == XPR_SIZEOFT) ) | |
2403 | { | |
2404 | ctype ct2; | |
2405 | ||
2406 | if (t2->kind == XPR_SIZEOFT) | |
2407 | { | |
2408 | ct2 = qtype_getType (exprData_getType (t2->edata)); | |
2409 | } | |
2410 | else | |
2411 | { | |
2412 | ct2 = qtype_getType (exprData_getType(exprData_getSingle (t2->edata)->edata ) ); | |
2413 | } | |
2414 | if (ctype_match (ctype_makePointer(ct2),ct) ) | |
2415 | { | |
2416 | /* sloopy way to do this... */ /*@i22*/ | |
2417 | constraintExpr_free(e); | |
2418 | return constraintExpr_makeExprNode(t1); | |
2419 | } | |
2420 | } | |
2421 | else | |
2422 | { | |
2423 | /*empty*/ | |
2424 | } | |
2425 | ||
2426 | } | |
2427 | } | |
2428 | return (constraintExpr_div (e, ct) ); | |
2429 | } | |
2430 | ||
2431 | static /*@only@*/ constraintExpr simpleDivType (/*@only@*/ constraintExpr e, ctype ct) | |
2432 | { | |
2433 | /*@i333*/ | |
2434 | DPRINTF(( (message("simpleDiv got %s ", constraintExpr_unparse(e) ) ) | |
2435 | )); | |
2436 | ||
2437 | switch (e->kind) | |
2438 | { | |
2439 | case term: | |
2440 | ||
2441 | { | |
2442 | constraintTerm t; | |
2443 | ||
2444 | t = constraintExprData_termGetTerm(e->data); | |
2445 | ||
2446 | ||
2447 | if (constraintTerm_isExprNode (t) ) | |
2448 | { | |
2449 | return constraintTerm_simpleDivTypeExprNode(e, ct); | |
2450 | ||
2451 | /* search for * size of ct and remove */ | |
2452 | } | |
2453 | return constraintExpr_div (e, ct); | |
2454 | } | |
2455 | ||
2456 | case binaryexpr: | |
2457 | { | |
2458 | constraintExpr temp; | |
2459 | ||
2460 | temp = constraintExprData_binaryExprGetExpr1 (e->data); | |
2461 | temp = constraintExpr_copy(temp); | |
2462 | temp = simpleDivType (temp, ct); | |
2463 | ||
2464 | e->data = constraintExprData_binaryExprSetExpr1 (e->data, temp); | |
2465 | ||
2466 | temp = constraintExprData_binaryExprGetExpr2 (e->data); | |
2467 | temp = constraintExpr_copy(temp); | |
2468 | temp = simpleDivType (temp, ct); | |
2469 | e->data = constraintExprData_binaryExprSetExpr2 (e->data, temp); | |
2470 | ||
2471 | DPRINTF(( (message("simpleDiv binaryexpr returning %s ", constraintExpr_unparse(e) ) ) | |
2472 | )); | |
2473 | ||
2474 | return e; | |
2475 | } | |
2476 | case unaryExpr: | |
2477 | return constraintExpr_div (e, ct); | |
2478 | ||
2479 | default: | |
2480 | BADEXIT; | |
2481 | } | |
2482 | } | |
2483 | ||
2484 | static /*@only@*/ constraintExpr constraintExpr_adjustMaxSetForCast(/*@only@*/ constraintExpr e, ctype ct) | |
2485 | { | |
2486 | ||
2487 | DPRINTF(( (message("constraintExpr_adjustMaxSetForCast got %s ", constraintExpr_unparse(e) ) ) | |
2488 | )); | |
2489 | ||
2490 | e = constraintExpr_makeIncConstraintExpr(e); | |
2491 | ||
2492 | e = constraintExpr_simplify(e); | |
2493 | ||
2494 | ||
2495 | e = simpleDivType (e, ct); | |
2496 | ||
2497 | e = constraintExpr_makeDecConstraintExpr(e); | |
2498 | ||
2499 | e = constraintExpr_simplify(e); | |
2500 | ||
2501 | DPRINTF(( (message("constraintExpr_adjustMaxSetForCast returning %s ", constraintExpr_unparse(e) ) ) | |
2502 | )); | |
2503 | ||
2504 | return e; | |
2505 | } | |
2506 |