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