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