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65f973be | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
77d37419 | 3 | ** Copyright (C) 1994-2002 University of Virginia, |
65f973be | 4 | ** Massachusetts Institute of Technology |
5 | ** | |
6 | ** This program is free software; you can redistribute it and/or modify it | |
7 | ** under the terms of the GNU General Public License as published by the | |
8 | ** Free Software Foundation; either version 2 of the License, or (at your | |
9 | ** option) any later version. | |
10 | ** | |
11 | ** This program is distributed in the hope that it will be useful, but | |
12 | ** WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | ** General Public License for more details. | |
15 | ** | |
16 | ** The GNU General Public License is available from http://www.gnu.org/ or | |
17 | ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | ** MA 02111-1307, USA. | |
19 | ** | |
155af98d | 20 | ** For information on splint: info@splint.org |
21 | ** To report a bug: splint-bug@splint.org | |
11db3170 | 22 | ** For more information: http://www.splint.org |
65f973be | 23 | */ |
24 | ||
3aaedf88 | 25 | /* |
26 | ** constraintExpr.c | |
27 | */ | |
28 | ||
b7b694d6 | 29 | /* #define DEBUGPRINT 1 */ |
3aaedf88 | 30 | |
1b8ae690 | 31 | # include "splintMacros.nf" |
3aaedf88 | 32 | # include "basic.h" |
33 | # include "cgrammar.h" | |
34 | # include "cgrammar_tokens.h" | |
35 | ||
36 | # include "exprChecks.h" | |
3aaedf88 | 37 | # include "exprNodeSList.h" |
38 | ||
3aaedf88 | 39 | /*@-czechfcns@*/ |
40 | ||
393e573f | 41 | /*@access exprNode@*/ /* !!! NO! Don't do this recklessly! */ |
42 | /*@-nullderef@*/ /* !!! DRL needs to fix this code! */ | |
43 | /*@-nullstate@*/ /* !!! DRL needs to fix this code! */ | |
44 | /*@-temptrans@*/ /* !!! DRL needs to fix this code! */ | |
3aaedf88 | 45 | |
46 | ||
86d93ed3 | 47 | static ctype constraintExpr_getOrigType (constraintExpr p_e); |
48 | static bool constraintExpr_hasTypeChange(constraintExpr p_e) /*@*/; | |
920a3797 | 49 | |
28bf4b0b | 50 | static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/constraintExpr p_expr, int p_literal); |
bb25bea6 | 51 | |
920a3797 | 52 | |
86d93ed3 | 53 | /*@only@*/ static constraintExpr |
54 | doSRefFixInvarConstraintTerm (/*@only@*/ constraintExpr p_e, | |
55 | sRef p_s, ctype p_ct); | |
56 | ||
d46ce6a4 | 57 | /*@only@*/ static constraintExpr |
28bf4b0b | 58 | doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr p_e, /*@temp@*/ /*@observer@*/ exprNodeList p_arglist) /*@modifies p_e@*/; |
c3e695ff | 59 | |
4ab867d6 | 60 | static /*@only@*/ constraintExpr |
28bf4b0b | 61 | doFixResultTerm (/*@only@*/ constraintExpr p_e, /*@exposed@*/ exprNode p_fcnCall) |
62 | /*@modifies p_e@*/; | |
86d93ed3 | 63 | |
64 | static bool constraintExpr_canGetCType (constraintExpr p_e) /*@*/; | |
65 | ||
66 | static ctype constraintExpr_getCType (constraintExpr p_e); | |
67 | ||
68 | static /*@only@*/ constraintExpr constraintExpr_adjustMaxSetForCast(/*@only@*/ constraintExpr p_e, ctype p_ct); | |
69 | ||
b7b694d6 | 70 | /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void) |
71 | /* @allocates result->data @ @sets result->kind @ */ ; | |
3aaedf88 | 72 | |
d46ce6a4 | 73 | void constraintExpr_free (/*@only@*/ constraintExpr expr) |
74 | { | |
75 | if (constraintExpr_isDefined(expr) ) | |
76 | { | |
77 | switch (expr->kind) | |
78 | { | |
79 | case unaryExpr: | |
80 | constraintExprData_freeUnaryExpr(expr->data); | |
81 | break; | |
82 | case binaryexpr: | |
83 | constraintExprData_freeBinaryExpr(expr->data); | |
84 | break; | |
85 | case term: | |
86 | constraintExprData_freeTerm(expr->data); | |
87 | break; | |
88 | default: | |
89 | BADEXIT; | |
90 | } | |
bb25bea6 | 91 | |
92 | expr->data = NULL; | |
d46ce6a4 | 93 | free (expr); |
94 | } | |
95 | else | |
96 | { | |
97 | llcontbug(message("attempted to free null pointer in constraintExpr_free")); | |
98 | } | |
99 | } | |
100 | ||
3aaedf88 | 101 | bool constraintExpr_isLit (constraintExpr expr) |
102 | { | |
dc92450f | 103 | llassert (expr != NULL); |
3aaedf88 | 104 | |
105 | if (expr->kind == term) | |
106 | { | |
107 | constraintTerm term = constraintExprData_termGetTerm (expr->data); | |
108 | if (constraintTerm_isIntLiteral (term) ) | |
109 | { | |
110 | return TRUE; | |
111 | } | |
112 | ||
113 | } | |
114 | return FALSE; | |
115 | } | |
116 | ||
7c9c4a67 | 117 | static bool isZeroBinaryOp (constraintExpr expr) |
118 | { | |
119 | constraintExpr e2; | |
120 | ||
7272a1c1 | 121 | llassert (expr != NULL); /* evans 2001-07-18 */ |
122 | ||
7c9c4a67 | 123 | if (!constraintExpr_isBinaryExpr (expr) ) |
124 | { | |
125 | return FALSE; | |
126 | } | |
127 | ||
128 | ||
129 | e2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
130 | ||
7272a1c1 | 131 | llassert (e2 != NULL); /* evans 2001-07-18 */ |
132 | ||
7c9c4a67 | 133 | if (constraintExpr_isBinaryExpr (e2) ) |
134 | { | |
135 | constraintExpr e1; | |
136 | constraintExprBinaryOpKind op; | |
137 | ||
138 | op = constraintExprData_binaryExprGetOp (e2->data); | |
139 | ||
140 | e1 = constraintExprData_binaryExprGetExpr1(e2->data); | |
141 | ||
142 | if (constraintExpr_isLit(e1) ) | |
143 | { | |
144 | if (constraintExpr_getValue(e1) == 0 ) | |
145 | { | |
146 | return TRUE; | |
147 | } | |
148 | } | |
149 | } | |
150 | return FALSE; | |
151 | } | |
152 | ||
153 | /* change expr + (o - expr) to (expr -expr) */ | |
154 | ||
155 | /*@only@*/ static constraintExpr removeZero (/*@only@*/ /*@returned@*/ constraintExpr expr) | |
156 | { | |
157 | constraintExpr expr1, expr2; | |
158 | ||
159 | constraintExpr temp; | |
160 | ||
161 | constraintExprBinaryOpKind op; | |
162 | ||
163 | constraintExprBinaryOpKind tempOp; | |
164 | ||
165 | if (!isZeroBinaryOp(expr) ) | |
166 | return expr; | |
167 | ||
7272a1c1 | 168 | llassert (expr != NULL); /* evans 2001-07-18 */ |
7c9c4a67 | 169 | |
170 | expr1 = constraintExprData_binaryExprGetExpr1(expr->data); | |
171 | expr2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
172 | op = constraintExprData_binaryExprGetOp(expr->data); | |
173 | ||
7272a1c1 | 174 | llassert( constraintExpr_isBinaryExpr(expr2) ); |
175 | ||
7c9c4a67 | 176 | temp = constraintExprData_binaryExprGetExpr2 (expr2->data); |
177 | temp = constraintExpr_copy (temp); | |
178 | ||
179 | tempOp = constraintExprData_binaryExprGetOp (expr2->data); | |
180 | ||
0c91982e | 181 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 182 | op = tempOp; |
acfb6ad9 | 183 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 184 | { |
0c91982e | 185 | if (tempOp == BINARYOP_PLUS) |
acfb6ad9 | 186 | op = BINARYOP_MINUS; |
187 | else if (tempOp == BINARYOP_MINUS) | |
0c91982e | 188 | op = BINARYOP_PLUS; |
7c9c4a67 | 189 | else |
190 | BADEXIT; | |
191 | } | |
192 | else | |
193 | BADEXIT; | |
194 | ||
7c9c4a67 | 195 | expr->data = constraintExprData_binaryExprSetExpr2(expr->data, temp); |
196 | expr->data = constraintExprData_binaryExprSetOp(expr->data, op); | |
197 | ||
198 | return expr; | |
199 | } | |
200 | ||
3aaedf88 | 201 | |
d46ce6a4 | 202 | /*@only@*/ constraintExpr constraintExpr_propagateConstants (/*@only@*/ constraintExpr expr, |
3aaedf88 | 203 | /*@out@*/ bool * propagate, |
204 | /*@out@*/ int *literal) | |
205 | { | |
206 | constraintExpr expr1; | |
207 | constraintExpr expr2; | |
208 | bool propagate1, propagate2; | |
209 | int literal1, literal2; | |
d46ce6a4 | 210 | constraintExprBinaryOpKind op; |
3aaedf88 | 211 | |
212 | propagate1 = FALSE; | |
213 | propagate2 = FALSE; | |
214 | ||
215 | literal1 = 0; | |
216 | literal2 = 0; | |
217 | ||
218 | *propagate = FALSE; | |
219 | *literal = 0; | |
220 | ||
a779b61e | 221 | |
dc92450f | 222 | llassert (expr != NULL); |
3aaedf88 | 223 | |
b7b694d6 | 224 | /* we simplify unaryExpr elsewhere */ |
d46ce6a4 | 225 | if (expr->kind != binaryexpr) |
3aaedf88 | 226 | return expr; |
227 | ||
d46ce6a4 | 228 | op = constraintExprData_binaryExprGetOp (expr->data); |
3aaedf88 | 229 | |
bb7c2085 | 230 | DPRINTF((message("constraintExpr_propagateConstants: binaryexpr: %s", constraintExpr_unparse(expr) ) ) ); |
7c9c4a67 | 231 | |
232 | expr = removeZero(expr); | |
3aaedf88 | 233 | |
234 | expr1 = constraintExprData_binaryExprGetExpr1(expr->data); | |
235 | expr2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
236 | ||
d46ce6a4 | 237 | expr1 = constraintExpr_copy(expr1); |
238 | expr2 = constraintExpr_copy(expr2); | |
239 | ||
3aaedf88 | 240 | expr1 = constraintExpr_propagateConstants (expr1, &propagate1, &literal1); |
241 | expr2 = constraintExpr_propagateConstants (expr2, &propagate2, &literal2); | |
242 | ||
a779b61e | 243 | expr1 = removeZero(expr1); |
244 | expr2 = removeZero(expr2); | |
245 | ||
246 | ||
3aaedf88 | 247 | *propagate = propagate1 || propagate2; |
7c9c4a67 | 248 | |
0c91982e | 249 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 250 | *literal = literal1 + literal2; |
acfb6ad9 | 251 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 252 | *literal = literal1 - literal2; |
253 | else | |
254 | BADEXIT; | |
255 | ||
3aaedf88 | 256 | if ( constraintExpr_isLit (expr1) && constraintExpr_isLit (expr2) ) |
257 | { | |
b9904f57 | 258 | long t1, t2; |
3aaedf88 | 259 | t1 = constraintExpr_getValue (expr1); |
260 | t2 = constraintExpr_getValue (expr2); | |
7c9c4a67 | 261 | llassert(*propagate == FALSE); |
3aaedf88 | 262 | *propagate = FALSE; |
a8e557d3 | 263 | |
d46ce6a4 | 264 | constraintExpr_free (expr); |
265 | constraintExpr_free (expr1); | |
266 | constraintExpr_free (expr2); | |
267 | ||
0c91982e | 268 | if (op == BINARYOP_PLUS ) |
bb7c2085 | 269 | return (constraintExpr_makeIntLiteral ((t1+t2) )); |
acfb6ad9 | 270 | else if (op == BINARYOP_MINUS) |
bb7c2085 | 271 | return (constraintExpr_makeIntLiteral ((t1-t2) )); |
3aaedf88 | 272 | else |
d46ce6a4 | 273 | BADEXIT; |
3aaedf88 | 274 | } |
d46ce6a4 | 275 | |
276 | ||
3aaedf88 | 277 | if (constraintExpr_isLit (expr1) ) |
278 | { | |
3aaedf88 | 279 | *propagate = TRUE; |
d46ce6a4 | 280 | |
7c9c4a67 | 281 | *literal += constraintExpr_getValue (expr1); |
d46ce6a4 | 282 | |
0c91982e | 283 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 284 | { |
285 | constraintExpr_free(expr1); | |
286 | constraintExpr_free(expr); | |
287 | return expr2; | |
288 | } | |
acfb6ad9 | 289 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 290 | { |
a779b61e | 291 | |
7c9c4a67 | 292 | constraintExpr temp; |
293 | ||
294 | /* this is an ugly kludge to deal with not | |
295 | having a unary minus operation...*/ | |
a779b61e | 296 | |
7c9c4a67 | 297 | temp = constraintExpr_makeIntLiteral (0); |
298 | temp = constraintExpr_makeSubtractExpr (temp, expr2); | |
299 | ||
300 | constraintExpr_free(expr1); | |
301 | constraintExpr_free(expr); | |
302 | ||
303 | return temp; | |
304 | } | |
7272a1c1 | 305 | else |
306 | { | |
307 | BADBRANCH; /* evans 2001-07-18 */ | |
308 | } | |
3aaedf88 | 309 | } |
310 | ||
3aaedf88 | 311 | if (constraintExpr_isLit (expr2) ) |
312 | { | |
313 | *propagate = TRUE; | |
a8e557d3 | 314 | |
0c91982e | 315 | if ( op == BINARYOP_PLUS ) |
3aaedf88 | 316 | *literal += constraintExpr_getValue (expr2); |
acfb6ad9 | 317 | else if (op == BINARYOP_MINUS) |
3aaedf88 | 318 | *literal -= constraintExpr_getValue (expr2); |
7c9c4a67 | 319 | else |
320 | BADEXIT; | |
321 | ||
d46ce6a4 | 322 | |
323 | constraintExpr_free(expr2); | |
324 | constraintExpr_free(expr); | |
3aaedf88 | 325 | return expr1; |
326 | } | |
3aaedf88 | 327 | |
bb7c2085 | 328 | DPRINTF((message("constraintExpr_propagateConstants returning: %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 329 | |
d46ce6a4 | 330 | expr->data = constraintExprData_binaryExprSetExpr1 (expr->data, expr1); |
331 | expr->data = constraintExprData_binaryExprSetExpr2 (expr->data, expr2); | |
332 | ||
7c9c4a67 | 333 | expr = removeZero(expr); |
3aaedf88 | 334 | return expr; |
335 | } | |
336 | ||
bb25bea6 | 337 | /*@only@*/ static constraintExpr constraintExpr_combineConstants (/*@only@*/ constraintExpr expr ) /*@modifies expr@*/ |
3aaedf88 | 338 | { |
339 | bool propagate; | |
340 | int literal; | |
341 | ||
bb7c2085 | 342 | DPRINTF ((message ("Before combine %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 343 | expr = constraintExpr_propagateConstants (expr, &propagate, &literal); |
344 | ||
345 | ||
346 | if (propagate) | |
347 | { | |
348 | constraintExpr ret; | |
349 | ||
350 | if (literal != 0) | |
351 | { | |
352 | ret = constraintExpr_makeBinaryOpConstraintExprIntLiteral (expr, literal); | |
353 | expr = ret; | |
354 | } | |
355 | } | |
bb7c2085 | 356 | DPRINTF ((message ("After combine %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 357 | return expr; |
358 | } | |
c3e695ff | 359 | |
dc92450f | 360 | /*@special@*/ |
abd7f895 | 361 | static /*@notnull@*/ constraintExpr constraintExpr_alloc (void) /*@post:isnull result->data@*/ |
3aaedf88 | 362 | { |
363 | constraintExpr ret; | |
364 | ret = dmalloc (sizeof (*ret) ); | |
365 | ret->kind = term; | |
366 | ret->data = NULL; | |
86d93ed3 | 367 | ret->ct = FALSE; |
368 | ret->origType = ctype_undefined; | |
3aaedf88 | 369 | return ret; |
370 | } | |
371 | ||
4ab867d6 | 372 | /*@only@*/ static constraintExprData copyExprData (/*@observer@*/ constraintExprData data, constraintExprKind kind) |
c3e695ff | 373 | { |
374 | constraintExprData ret; | |
375 | llassert(constraintExprData_isDefined(data)); | |
376 | ||
377 | switch (kind) | |
378 | { | |
379 | case binaryexpr: | |
380 | ret = constraintExprData_copyBinaryExpr(data); | |
381 | break; | |
382 | case unaryExpr: | |
383 | ret = constraintExprData_copyUnaryExpr(data); | |
384 | break; | |
385 | case term: | |
386 | ret = constraintExprData_copyTerm(data); | |
387 | break; | |
388 | default: | |
389 | BADEXIT; | |
390 | } | |
391 | return ret; | |
392 | } | |
3aaedf88 | 393 | |
394 | constraintExpr constraintExpr_copy (constraintExpr expr) | |
395 | { | |
396 | constraintExpr ret; | |
abd7f895 | 397 | ret = constraintExpr_alloc (); |
3aaedf88 | 398 | ret->kind = expr->kind; |
c3e695ff | 399 | |
400 | ret->data = copyExprData (expr->data, expr->kind); | |
86d93ed3 | 401 | ret->ct = expr->ct; |
402 | ret->origType = expr->origType; | |
3aaedf88 | 403 | return ret; |
404 | } | |
405 | ||
406 | ||
28bf4b0b | 407 | /*@only@*/ static constraintExpr oldconstraintExpr_makeTermExprNode ( /*@dependent@*/ exprNode e) |
3aaedf88 | 408 | { |
409 | constraintExpr ret; | |
410 | constraintTerm t; | |
411 | ret = constraintExpr_alloc(); | |
412 | ret->kind = term; | |
413 | ret->data = dmalloc (sizeof *(ret->data) ); | |
414 | t = constraintTerm_makeExprNode (e); | |
415 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 416 | ret->ct = FALSE; |
417 | ret->origType = ctype_undefined; | |
418 | ||
3aaedf88 | 419 | return ret; |
420 | } | |
421 | ||
28bf4b0b | 422 | constraintExpr constraintExpr_makeExprNode (exprNode e) |
3aaedf88 | 423 | { |
424 | sRef s; | |
425 | constraintExpr ret, ce1, ce2; | |
426 | exprData data; | |
427 | exprNode t, t1, t2; | |
428 | lltok tok; | |
429 | ||
dc92450f | 430 | llassert (e != NULL); |
3aaedf88 | 431 | |
432 | data = e->edata; | |
433 | ||
434 | switch (e->kind) | |
435 | { | |
436 | case XPR_SIZEOF: | |
437 | t = exprData_getSingle (data); | |
f96fe483 | 438 | while (exprNode_isInParens (t) ) |
439 | { | |
440 | t = exprData_getUopNode (t->edata); | |
441 | } | |
3aaedf88 | 442 | s = exprNode_getSref (t); |
443 | if (sRef_isFixedArray(s) ) | |
444 | { | |
445 | int size; | |
446 | ||
dc92450f | 447 | size = (int) sRef_getArraySize(s); |
3aaedf88 | 448 | ret = constraintExpr_makeIntLiteral (size); |
449 | } | |
e5081f8c | 450 | else if (exprNode_isStringLiteral (t)) |
f96fe483 | 451 | { |
e5081f8c | 452 | cstring str = multiVal_forceString (exprNode_getValue(t)); |
453 | ret = constraintExpr_makeIntLiteral (size_toLong (cstring_length (str) + 1)); | |
f96fe483 | 454 | } |
3aaedf88 | 455 | else |
456 | { | |
c3e695ff | 457 | DPRINTF ((message ("could not determine the size of %s", exprNode_unparse (e) ) ) ); |
3aaedf88 | 458 | ret = oldconstraintExpr_makeTermExprNode (e); |
459 | } | |
460 | break; | |
461 | ||
462 | case XPR_OP: | |
c3e695ff | 463 | DPRINTF ((message ("Examining operation %s", exprNode_unparse (e) ) ) ); |
3aaedf88 | 464 | t1 = exprData_getOpA (data); |
465 | t2 = exprData_getOpB (data); | |
466 | tok = exprData_getOpTok (data); | |
467 | ||
468 | if (lltok_isPlus_Op (tok) || lltok_isMinus_Op (tok) ) | |
469 | { | |
470 | ce1 = constraintExpr_makeExprNode (t1); | |
471 | ce2 = constraintExpr_makeExprNode (t2); | |
472 | ret = constraintExpr_parseMakeBinaryOp (ce1, tok, ce2); | |
473 | } | |
86d93ed3 | 474 | |
475 | ||
476 | /*@i333*/ | |
477 | /* uncomment this block to activate the cheesy heuristic | |
478 | for handling sizeof expressions | |
479 | ||
480 | / * | |
7edb30e6 | 481 | drl 8-11-001 |
482 | ||
483 | We handle expressions containing sizeof with the rule | |
484 | (sizeof type ) * Expr = Expr | |
485 | ||
486 | This is the total wronge way to do this but... | |
487 | it may be better than nothing | |
86d93ed3 | 488 | * / |
489 | ||
490 | ||
491 | ||
7edb30e6 | 492 | else if (lltok_isMult(tok) ) |
3aaedf88 | 493 | { |
7edb30e6 | 494 | if ((t1->kind == XPR_SIZEOF) || (t1->kind == XPR_SIZEOFT) ) |
495 | { | |
496 | ret = constraintExpr_makeExprNode(t2); | |
497 | } | |
498 | else if ((t2->kind == XPR_SIZEOF) || (t2->kind == XPR_SIZEOFT) ) | |
499 | { | |
500 | ret = constraintExpr_makeExprNode(t1); | |
86d93ed3 | 501 | } |
7edb30e6 | 502 | else |
503 | { | |
504 | ret = oldconstraintExpr_makeTermExprNode (e); | |
505 | } | |
3aaedf88 | 506 | } |
86d93ed3 | 507 | */ |
7edb30e6 | 508 | else |
509 | ret = oldconstraintExpr_makeTermExprNode (e); | |
510 | ||
3aaedf88 | 511 | break; |
512 | case XPR_PARENS: | |
513 | t = exprData_getUopNode (data); | |
514 | ret = constraintExpr_makeExprNode (t); | |
515 | break; | |
516 | ||
517 | case XPR_PREOP: | |
518 | t = exprData_getUopNode (data); | |
519 | tok = exprData_getUopTok (data); | |
16c024b5 | 520 | if (lltok_isIncOp (tok)) |
3aaedf88 | 521 | { |
522 | constraintExpr temp; | |
523 | temp = constraintExpr_makeExprNode(t); | |
524 | ret = constraintExpr_makeIncConstraintExpr(temp); | |
525 | } | |
16c024b5 | 526 | else if (lltok_isDecOp (tok)) |
3aaedf88 | 527 | { |
528 | constraintExpr temp; | |
529 | temp = constraintExpr_makeExprNode(t); | |
530 | ret = constraintExpr_makeDecConstraintExpr(temp); | |
531 | } | |
532 | else | |
533 | ret = oldconstraintExpr_makeTermExprNode (e); | |
534 | break; | |
535 | ||
536 | case XPR_POSTOP: | |
537 | t = exprData_getUopNode (data); | |
538 | ret = constraintExpr_makeExprNode (t); | |
539 | break; | |
470b7798 | 540 | case XPR_CAST: |
541 | t = exprData_getCastNode (data); | |
542 | ret = constraintExpr_makeExprNode (t); | |
543 | break; | |
544 | case XPR_COMMA: | |
545 | t = exprData_getPairA(data); | |
c3e695ff | 546 | ret = constraintExpr_makeExprNode(t); |
11db3170 | 547 | /*@i3434*/ /* drl: I'm not sure if this is right. I'm adding a break to quiet Splint */ |
c3e695ff | 548 | break; |
3aaedf88 | 549 | default: |
550 | ret = oldconstraintExpr_makeTermExprNode (e); | |
551 | ||
552 | } | |
553 | return ret; | |
554 | } | |
555 | ||
b7b694d6 | 556 | /*@only@*/ constraintExpr constraintExpr_makeTermExprNode (/*@exposed@*/ exprNode e) |
3aaedf88 | 557 | { |
b7b694d6 | 558 | return oldconstraintExpr_makeTermExprNode(e); |
3aaedf88 | 559 | } |
560 | ||
28bf4b0b | 561 | static constraintExpr constraintExpr_makeTerm (/*@only@*/ constraintTerm t) |
920a3797 | 562 | { |
563 | constraintExpr ret; | |
564 | ||
565 | ret = constraintExpr_alloc(); | |
566 | ret->kind = term; | |
567 | ret->data = dmalloc (sizeof *(ret->data) ); | |
a779b61e | 568 | ret->data->term = NULL; |
920a3797 | 569 | ret->data = constraintExprData_termSetTerm (ret->data, t); |
86d93ed3 | 570 | ret->ct = FALSE; |
571 | ret->origType = ctype_undefined; | |
920a3797 | 572 | |
573 | return ret; | |
574 | } | |
3aaedf88 | 575 | |
28bf4b0b | 576 | constraintExpr constraintExpr_makeTermsRef (/*@temp@*/ sRef s) |
3aaedf88 | 577 | { |
578 | constraintExpr ret; | |
579 | constraintTerm t; | |
580 | ret = constraintExpr_alloc(); | |
581 | ret->kind = term; | |
582 | ret->data = dmalloc (sizeof *(ret->data) ); | |
583 | t = constraintTerm_makesRef (s); | |
584 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 585 | |
586 | ret->ct = FALSE; | |
587 | ret->origType = ctype_undefined; | |
588 | ||
3aaedf88 | 589 | return ret; |
590 | } | |
591 | ||
920a3797 | 592 | /*@special@*/ static constraintExpr makeUnaryOpGeneric (void) /*@allocates result->data@*/ /*@defines result->kind@*/ |
3aaedf88 | 593 | { |
594 | constraintExpr ret; | |
595 | ret = constraintExpr_alloc(); | |
596 | ret->kind = unaryExpr; | |
597 | ret->data = dmalloc ( sizeof *(ret->data) ); | |
a779b61e | 598 | ret->data->unaryOp.expr = constraintExpr_undefined; |
3aaedf88 | 599 | return ret; |
600 | } | |
601 | ||
bb25bea6 | 602 | /*@only@*/ static constraintExpr constraintExpr_makeUnaryOpConstraintExpr (/*@only@*/ constraintExpr cexpr) |
3aaedf88 | 603 | { |
604 | constraintExpr ret; | |
920a3797 | 605 | ret = makeUnaryOpGeneric(); |
a8e557d3 | 606 | |
607 | /*@-uniondef@*/ | |
608 | /*@-compdef@*/ | |
b7b694d6 | 609 | ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr); |
610 | ret->data = constraintExprData_unaryExprSetOp (ret->data, UNARYOP_UNDEFINED); | |
611 | ||
3aaedf88 | 612 | return ret; |
b7b694d6 | 613 | |
a8e557d3 | 614 | /*@=compdef@*/ |
c3e695ff | 615 | /*@=uniondef@*/ |
3aaedf88 | 616 | } |
617 | ||
920a3797 | 618 | |
619 | /*@only@*/ static constraintExpr constraintExpr_makeUnaryOp (/*@only@*/ constraintExpr cexpr, constraintExprUnaryOpKind Op ) | |
620 | { | |
621 | constraintExpr ret; | |
622 | ret = makeUnaryOpGeneric(); | |
623 | ||
624 | ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr); | |
625 | ret->data = constraintExprData_unaryExprSetOp (ret->data, Op); | |
626 | ||
86d93ed3 | 627 | ret->ct = FALSE; |
628 | ret->origType = ctype_undefined; | |
629 | ||
920a3797 | 630 | return ret; |
631 | } | |
632 | ||
bb25bea6 | 633 | /*@only@*/ |
634 | static constraintExpr constraintExpr_makeMaxSetConstraintExpr (/*@only@*/ constraintExpr c) | |
3aaedf88 | 635 | { |
636 | constraintExpr ret; | |
920a3797 | 637 | ret = constraintExpr_makeUnaryOp (c, MAXSET); |
3aaedf88 | 638 | return ret; |
639 | } | |
640 | ||
bb25bea6 | 641 | /*@only@*/ |
4ab867d6 | 642 | static constraintExpr constraintExpr_makeUnaryOpExprNode (/*@exposed@*/ exprNode expr) |
3aaedf88 | 643 | { |
644 | constraintExpr ret; | |
645 | constraintExpr sub; | |
646 | sub = constraintExpr_makeExprNode (expr); | |
647 | ret = constraintExpr_makeUnaryOpConstraintExpr(sub); | |
d46ce6a4 | 648 | |
3aaedf88 | 649 | return ret; |
650 | } | |
651 | ||
652 | ||
653 | ||
bb25bea6 | 654 | /*@only@*/ |
28bf4b0b | 655 | static constraintExpr constraintExpr_makeSRefUnaryOp (/*@temp@*/ /*@observer@*/ sRef s, constraintExprUnaryOpKind op) |
3aaedf88 | 656 | { |
657 | constraintExpr ret; | |
658 | constraintExpr t; | |
659 | ||
660 | t = constraintExpr_makeTermsRef (s); | |
661 | ret = constraintExpr_makeUnaryOpConstraintExpr (t); | |
662 | ret->data = constraintExprData_unaryExprSetOp (ret->data, op); | |
d46ce6a4 | 663 | |
3aaedf88 | 664 | return ret; |
665 | } | |
666 | ||
bb25bea6 | 667 | /*@only@*/ |
28bf4b0b | 668 | constraintExpr constraintExpr_makeSRefMaxRead( sRef s) |
470b7798 | 669 | { |
670 | return (constraintExpr_makeSRefUnaryOp (s, MAXREAD) ); | |
671 | } | |
672 | ||
bb25bea6 | 673 | /*@only@*/ |
28bf4b0b | 674 | constraintExpr constraintExpr_makeSRefMaxset ( sRef s) |
3aaedf88 | 675 | { |
676 | return (constraintExpr_makeSRefUnaryOp (s, MAXSET) ); | |
677 | } | |
678 | ||
bb25bea6 | 679 | /*@only@*/ |
3aaedf88 | 680 | constraintExpr constraintExpr_parseMakeUnaryOp (lltok op, constraintExpr cexpr) |
681 | { | |
682 | constraintExpr ret; | |
683 | ret = constraintExpr_makeUnaryOpConstraintExpr ( cexpr); | |
684 | ||
80489f0a | 685 | switch (lltok_getTok (op)) |
3aaedf88 | 686 | { |
687 | case QMAXSET: | |
688 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXSET); | |
689 | break; | |
690 | case QMAXREAD: | |
691 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD); | |
692 | break; | |
693 | default: | |
2f2892c2 | 694 | llfatalbug (message ("Unhandled operation in constraint: %s", lltok_unparse (op))); |
3aaedf88 | 695 | } |
696 | return ret; | |
697 | } | |
698 | ||
bb25bea6 | 699 | /*@only@*/ |
4ab867d6 | 700 | constraintExpr constraintExpr_makeMaxSetExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 701 | { |
702 | constraintExpr ret; | |
703 | ret = constraintExpr_makeExprNode (expr); | |
704 | ||
705 | ret = constraintExpr_makeMaxSetConstraintExpr (ret); | |
706 | ||
dc92450f | 707 | llassert (ret != NULL); |
3aaedf88 | 708 | return ret; |
709 | } | |
710 | ||
bb25bea6 | 711 | /*@only@*/ |
3aaedf88 | 712 | constraintExpr constraintExpr_makeMaxReadExpr (exprNode expr) |
713 | { | |
714 | constraintExpr ret; | |
715 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
716 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD); | |
717 | return ret; | |
718 | } | |
719 | ||
15b3d2b2 | 720 | # if 0 |
bb25bea6 | 721 | /*@only@*/ |
28bf4b0b | 722 | /*@unused@*/ static constraintExpr constraintExpr_makeMinSetExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 723 | { |
724 | constraintExpr ret; | |
725 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
726 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MINSET); | |
727 | return ret; | |
728 | } | |
729 | ||
bb25bea6 | 730 | /*@only@*/ |
28bf4b0b | 731 | /*@unused@*/ static constraintExpr constraintExpr_makeMinReadExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 732 | { |
733 | constraintExpr ret; | |
734 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
735 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MINREAD); | |
736 | return ret; | |
737 | } | |
15b3d2b2 | 738 | # endif |
3aaedf88 | 739 | |
bb25bea6 | 740 | /*@only@*/ |
4ab867d6 | 741 | constraintExpr constraintExpr_makeValueExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 742 | { |
743 | constraintExpr ret; | |
744 | ret = constraintExpr_makeExprNode (expr); | |
745 | return ret; | |
746 | } | |
747 | ||
bb25bea6 | 748 | /*@only@*/ |
b9904f57 | 749 | constraintExpr constraintExpr_makeIntLiteral (long i) |
3aaedf88 | 750 | { |
751 | constraintExpr ret; | |
752 | constraintTerm t; | |
753 | ret = constraintExpr_alloc(); | |
754 | ret->kind = term; | |
755 | ret->data = dmalloc (sizeof *(ret->data) ); | |
756 | t = constraintTerm_makeIntLiteral (i); | |
757 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 758 | |
759 | ret->ct = FALSE; | |
760 | ret->origType = ctype_undefined; | |
761 | ||
3aaedf88 | 762 | return ret; |
763 | } | |
764 | ||
c3e695ff | 765 | /* |
3aaedf88 | 766 | constraintExpr constraintExpr_makeValueInt (int i) |
767 | { | |
768 | return constraintExpr_makeIntLiteral (i); | |
769 | } | |
c3e695ff | 770 | */ |
3aaedf88 | 771 | |
bb25bea6 | 772 | /*@only@*/ |
28bf4b0b | 773 | /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void) |
774 | /*@allocates result->data @*/ /*@sets result->kind @*/ | |
3aaedf88 | 775 | { |
776 | constraintExpr ret; | |
777 | ret = constraintExpr_alloc(); | |
778 | ret->kind = binaryexpr; | |
779 | ret->data = dmalloc ( sizeof *(ret->data) ); | |
a779b61e | 780 | |
781 | ret->data->binaryOp.expr1 = constraintExpr_undefined; | |
782 | ret->data->binaryOp.expr2 = constraintExpr_undefined; | |
783 | ||
3aaedf88 | 784 | return ret; |
785 | } | |
786 | ||
787 | ||
bb25bea6 | 788 | static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExpr (/*@only@*/constraintExpr expr1, /*@only@*/ constraintExpr expr2) |
3aaedf88 | 789 | |
790 | { | |
791 | constraintExpr ret; | |
d46ce6a4 | 792 | |
3aaedf88 | 793 | ret = constraintExpr_makeBinaryOp(); |
794 | ret->data = constraintExprData_binaryExprSetExpr1 (ret->data, expr1); | |
795 | ret->data = constraintExprData_binaryExprSetExpr2 (ret->data, expr2); | |
84c9ffbf | 796 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED); |
86d93ed3 | 797 | |
798 | ret->ct = FALSE; | |
799 | ret->origType = ctype_undefined; | |
800 | ||
3aaedf88 | 801 | return ret; |
802 | } | |
803 | ||
bb25bea6 | 804 | /*@only@*/ |
d46ce6a4 | 805 | constraintExpr constraintExpr_parseMakeBinaryOp (/*@only@*/ constraintExpr expr1, lltok op,/*@only@*/ constraintExpr expr2) |
3aaedf88 | 806 | { |
807 | constraintExpr ret; | |
808 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2); | |
80489f0a | 809 | |
810 | if (lltok_getTok (op) == TPLUS) | |
811 | { | |
812 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); | |
813 | } | |
814 | else if (lltok_getTok (op) == TMINUS) | |
815 | { | |
816 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS); | |
817 | } | |
818 | else | |
819 | { | |
820 | llassert (FALSE); | |
821 | } | |
822 | ||
3aaedf88 | 823 | return ret; |
824 | } | |
825 | ||
15b3d2b2 | 826 | # if 0 |
bb25bea6 | 827 | /*@only@*/ |
28bf4b0b | 828 | /*@unused@*/ static constraintExpr constraintExpr_makeBinaryOpExprNode (/*@exposed@*/ exprNode expr1, /*@exposed@*/ exprNode expr2) |
3aaedf88 | 829 | { |
830 | constraintExpr ret; | |
831 | constraintExpr sub1, sub2; | |
832 | sub1 = constraintExpr_makeTermExprNode (expr1); | |
833 | sub2 = constraintExpr_makeTermExprNode (expr2); | |
834 | ret = constraintExpr_makeBinaryOpConstraintExpr(sub1, sub2); | |
835 | return ret; | |
836 | } | |
15b3d2b2 | 837 | # endif |
3aaedf88 | 838 | |
920a3797 | 839 | static /*@only@*/ |
d46ce6a4 | 840 | constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/ constraintExpr expr, int literal) |
3aaedf88 | 841 | { |
842 | constraintExpr ret; | |
843 | constraintExpr constExpr; | |
844 | ||
845 | constExpr = constraintExpr_makeIntLiteral (literal); | |
846 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, constExpr); | |
0c91982e | 847 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 848 | return ret; |
849 | } | |
850 | ||
bb25bea6 | 851 | /*@only@*/ |
d46ce6a4 | 852 | constraintExpr constraintExpr_makeDecConstraintExpr (/*@only@*/constraintExpr expr) |
3aaedf88 | 853 | { |
854 | constraintExpr ret; | |
855 | constraintExpr inc; | |
856 | ||
857 | inc = constraintExpr_makeIntLiteral (1); | |
858 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc); | |
acfb6ad9 | 859 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS); |
3aaedf88 | 860 | return ret; |
861 | } | |
862 | ||
2934b455 | 863 | |
864 | /*@only@*/ constraintExpr constraintExpr_makeSubtractExpr (/*@only@*/ constraintExpr expr, /*@only@*/ constraintExpr addent) | |
865 | { | |
28bf4b0b | 866 | constraintExpr ret; |
2934b455 | 867 | |
bb7c2085 | 868 | DPRINTF ((message ("Making subtract expression") ) ); |
2934b455 | 869 | |
28bf4b0b | 870 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent); |
acfb6ad9 | 871 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_MINUS); |
28bf4b0b | 872 | return ret; |
2934b455 | 873 | } |
874 | ||
bb25bea6 | 875 | /*@only@*/ |
2934b455 | 876 | constraintExpr constraintExpr_makeAddExpr (/*@only@*/ |
bb25bea6 | 877 | constraintExpr expr, /*@only@*/ |
2934b455 | 878 | constraintExpr addent) |
3aaedf88 | 879 | { |
28bf4b0b | 880 | constraintExpr ret; |
3aaedf88 | 881 | |
bb7c2085 | 882 | DPRINTF ((message ("Doing addTerm simplification") ) ); |
3aaedf88 | 883 | |
28bf4b0b | 884 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent); |
0c91982e | 885 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_PLUS); |
28bf4b0b | 886 | return ret; |
3aaedf88 | 887 | } |
888 | ||
2934b455 | 889 | |
bb25bea6 | 890 | /*@only@*/ |
d46ce6a4 | 891 | constraintExpr constraintExpr_makeIncConstraintExpr (/*@only@*/ constraintExpr expr) |
3aaedf88 | 892 | { |
893 | constraintExpr ret; | |
894 | constraintExpr inc; | |
895 | ||
896 | inc = constraintExpr_makeIntLiteral (1); | |
897 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc); | |
0c91982e | 898 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 899 | return ret; |
900 | } | |
901 | ||
bb25bea6 | 902 | /*@only@*/ |
903 | static cstring constraintExprUnaryOpKind_print (constraintExprUnaryOpKind op) | |
3aaedf88 | 904 | { |
905 | switch (op) | |
906 | { | |
907 | case MAXSET: | |
03d670b6 | 908 | return message("maxSet"); |
3aaedf88 | 909 | case MINSET: |
03d670b6 | 910 | return message("minSet"); |
3aaedf88 | 911 | case MAXREAD: |
03d670b6 | 912 | return message("maxRead"); |
3aaedf88 | 913 | case MINREAD: |
03d670b6 | 914 | return message("minRead"); |
3aaedf88 | 915 | default: |
916 | llassert(FALSE); | |
917 | return message ("<(Unary OP OTHER>"); | |
918 | } | |
919 | } | |
920 | ||
921 | ||
bb25bea6 | 922 | /*@only@*/ |
923 | static cstring constraintExprBinaryOpKind_print (constraintExprBinaryOpKind op) | |
3aaedf88 | 924 | { |
925 | ||
926 | switch (op) | |
927 | { | |
0c91982e | 928 | case BINARYOP_PLUS: |
3aaedf88 | 929 | return message("+"); |
acfb6ad9 | 930 | case BINARYOP_MINUS: |
3aaedf88 | 931 | return message("-"); |
dc92450f | 932 | |
933 | default: | |
934 | llassert(FALSE); | |
935 | return message ("<binary OP Unknown>"); | |
3aaedf88 | 936 | } |
3aaedf88 | 937 | } |
938 | ||
939 | bool constraintExpr_similar (constraintExpr expr1, constraintExpr expr2) | |
940 | { | |
941 | constraintExprKind kind; | |
942 | ||
943 | llassert (expr1 != NULL); | |
944 | llassert (expr2 != NULL); | |
945 | if (expr1->kind != expr2->kind) | |
946 | return FALSE; | |
947 | ||
948 | kind = expr1->kind; | |
949 | ||
950 | switch (kind) | |
951 | { | |
952 | case term: | |
953 | return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data), | |
954 | constraintExprData_termGetTerm(expr2->data) ); | |
c3e695ff | 955 | /*@notreached@*/ break; |
3aaedf88 | 956 | |
957 | case unaryExpr: | |
958 | if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) ) | |
959 | return FALSE; | |
960 | ||
961 | return (constraintExpr_similar ( | |
962 | constraintExprData_unaryExprGetExpr (expr1->data), | |
963 | constraintExprData_unaryExprGetExpr (expr2->data) | |
964 | )); | |
965 | ||
966 | case binaryexpr: | |
967 | if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) ) | |
968 | return FALSE; | |
969 | ||
970 | if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr1 (expr1->data), | |
971 | constraintExprData_binaryExprGetExpr1 (expr2->data)) ) | |
972 | return FALSE; | |
973 | ||
974 | if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr2 (expr1->data), | |
975 | constraintExprData_binaryExprGetExpr2 (expr2->data)) ) | |
976 | return FALSE; | |
977 | else | |
978 | return TRUE; | |
979 | /*@notreached@*/ | |
980 | break; | |
981 | ||
982 | default: | |
983 | llassert(FALSE); | |
984 | return FALSE; | |
985 | } | |
986 | /*@notreached@*/ | |
987 | return FALSE; | |
988 | } | |
989 | ||
990 | bool constraintExpr_same (constraintExpr expr1, constraintExpr expr2) | |
991 | { | |
992 | constraintExprKind kind; | |
993 | ||
994 | llassert (expr1 != NULL); | |
995 | llassert (expr2 != NULL); | |
996 | if (expr1->kind != expr2->kind) | |
997 | return FALSE; | |
998 | ||
999 | kind = expr1->kind; | |
1000 | ||
1001 | switch (kind) | |
1002 | { | |
1003 | case term: | |
1004 | return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data), | |
1005 | constraintExprData_termGetTerm(expr2->data) ); | |
dc92450f | 1006 | /*@notreached@*/ break; |
3aaedf88 | 1007 | |
1008 | case unaryExpr: | |
1009 | if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) ) | |
1010 | return FALSE; | |
1011 | ||
1012 | return (constraintExpr_same ( | |
1013 | constraintExprData_unaryExprGetExpr (expr1->data), | |
1014 | constraintExprData_unaryExprGetExpr (expr2->data) | |
1015 | )); | |
1016 | ||
1017 | ||
1018 | case binaryexpr: | |
1019 | if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) ) | |
1020 | return FALSE; | |
1021 | ||
1022 | if (! constraintExpr_same (constraintExprData_binaryExprGetExpr1 (expr1->data), | |
1023 | constraintExprData_binaryExprGetExpr1 (expr2->data)) ) | |
1024 | return FALSE; | |
1025 | ||
1026 | if (! constraintExpr_same (constraintExprData_binaryExprGetExpr2 (expr1->data), | |
1027 | constraintExprData_binaryExprGetExpr2 (expr2->data)) ) | |
1028 | return FALSE; | |
1029 | else | |
1030 | return TRUE; | |
dc92450f | 1031 | /*@notreached@*/ break; |
3aaedf88 | 1032 | |
1033 | default: | |
1034 | llassert(FALSE); | |
1035 | return FALSE; | |
1036 | } | |
1037 | ||
1038 | /*@notreached@*/ | |
1039 | BADEXIT; | |
1040 | } | |
1041 | ||
bb25bea6 | 1042 | bool constraintExpr_search (/*@observer@*/ constraintExpr c, /*@observer@*/ constraintExpr old) |
3aaedf88 | 1043 | { |
1044 | bool ret = FALSE; | |
1045 | constraintExprKind kind; | |
1046 | constraintExpr temp; | |
1047 | ||
1048 | if ( constraintExpr_similar (c, old) ) | |
1049 | { | |
bb25bea6 | 1050 | DPRINTF((message ("Found %q", |
3aaedf88 | 1051 | constraintExpr_unparse(old) |
1052 | ))); | |
1053 | return TRUE; | |
1054 | } | |
1055 | ||
1056 | kind = c->kind; | |
1057 | ||
1058 | switch (kind) | |
1059 | { | |
1060 | case term: | |
1061 | break; | |
1062 | case unaryExpr: | |
1063 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
1064 | ret = ret || constraintExpr_search (temp, old); | |
1065 | break; | |
1066 | case binaryexpr: | |
1067 | ||
1068 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
1069 | ret = ret || constraintExpr_search(temp, old); | |
1070 | ||
1071 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
1072 | ret = ret || constraintExpr_search(temp, old); | |
1073 | break; | |
1074 | default: | |
1075 | llassert(FALSE); | |
1076 | } | |
1077 | return ret; | |
1078 | ||
1079 | } | |
1080 | ||
1081 | ||
28bf4b0b | 1082 | /*@only@*/ constraintExpr constraintExpr_searchandreplace (/*@only@*/ /*@unique@*/ constraintExpr c, /*@temp@*/ constraintExpr old, /*@temp@*/ constraintExpr newExpr ) |
3aaedf88 | 1083 | { |
1084 | constraintExprKind kind; | |
1085 | constraintExpr temp; | |
86d93ed3 | 1086 | constraintExpr ret; |
3aaedf88 | 1087 | |
1088 | if ( constraintExpr_similar (c, old) ) | |
1089 | { | |
86d93ed3 | 1090 | |
1091 | ctype newType, cType; | |
1092 | ||
1093 | ||
1094 | ret = constraintExpr_copy (newExpr); | |
bb25bea6 | 1095 | |
470b7798 | 1096 | DPRINTF((message ("Replacing %s with %s", |
28bf4b0b | 1097 | constraintExpr_unparse(old), constraintExpr_unparse(newExpr) |
3aaedf88 | 1098 | ))); |
86d93ed3 | 1099 | |
1100 | if (constraintExpr_canGetCType(c) && constraintExpr_canGetCType(newExpr) ) | |
1101 | { | |
1102 | cType = constraintExpr_getCType(c); | |
1103 | newType = constraintExpr_getCType(newExpr); | |
1104 | ||
1105 | if (ctype_match(cType,newType) ) | |
1106 | { | |
1107 | DPRINTF(( message("constraintExpr_searchandreplace: replacing " | |
1108 | " %s with type %s with %s with type %s", | |
1109 | constraintExpr_print(c), ctype_unparse(cType), | |
1110 | constraintExpr_print(newExpr), ctype_unparse(newType) | |
1111 | ) | |
1112 | )); | |
1113 | ||
1114 | ret->ct = TRUE; | |
1115 | ret->origType = cType; | |
1116 | } | |
1117 | } | |
1118 | ||
1119 | if (constraintExpr_hasMaxSet(c) ) | |
1120 | { | |
1121 | if (constraintExpr_hasTypeChange(c)) | |
1122 | { | |
1123 | DPRINTF(( message("constraintExpr_searchandreplace: encountered " | |
1124 | "MaxSet with changed type %s ", | |
1125 | constraintExpr_print(c) ) | |
1126 | )); | |
1127 | ||
1128 | /*fix this with a conversation */ | |
1129 | ret = constraintExpr_adjustMaxSetForCast(ret, constraintExpr_getOrigType(c)); | |
1130 | } | |
1131 | } | |
bb25bea6 | 1132 | constraintExpr_free(c); |
86d93ed3 | 1133 | |
1134 | return ret; | |
3aaedf88 | 1135 | } |
1136 | ||
1137 | kind = c->kind; | |
1138 | ||
1139 | switch (kind) | |
1140 | { | |
1141 | case term: | |
1142 | break; | |
1143 | case unaryExpr: | |
1144 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1145 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1146 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1147 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); |
1148 | break; | |
1149 | case binaryexpr: | |
1150 | ||
1151 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
d46ce6a4 | 1152 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1153 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1154 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); |
1155 | ||
1156 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1157 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1158 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1159 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); |
1160 | break; | |
1161 | default: | |
1162 | llassert(FALSE); | |
1163 | } | |
1164 | return c; | |
3aaedf88 | 1165 | } |
1166 | ||
bb25bea6 | 1167 | static constraintExpr constraintExpr_simplifyChildren (/*@returned@*/ constraintExpr c) |
3aaedf88 | 1168 | { |
1169 | constraintExprKind kind; | |
1170 | constraintExpr temp; | |
1171 | ||
1172 | kind = c->kind; | |
1173 | ||
1174 | switch (kind) | |
1175 | { | |
1176 | case term: | |
1177 | break; | |
1178 | case unaryExpr: | |
1179 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1180 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1181 | temp = constraintExpr_simplify (temp); |
1182 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); | |
1183 | break; | |
1184 | case binaryexpr: | |
c3e695ff | 1185 | DPRINTF((message("constraintExpr_simplfiyChildren: simplify binary expression: %s",constraintExpr_unparse(c) ) ) ); |
3aaedf88 | 1186 | temp = constraintExprData_binaryExprGetExpr1 (c->data); |
d46ce6a4 | 1187 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1188 | temp = constraintExpr_simplify (temp); |
1189 | ||
1190 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); | |
1191 | ||
1192 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1193 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1194 | temp = constraintExpr_simplify (temp); |
1195 | ||
1196 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); | |
1197 | break; | |
1198 | default: | |
1199 | llassert(FALSE); | |
1200 | } | |
1201 | return c; | |
1202 | ||
1203 | } | |
1204 | ||
1205 | ||
28bf4b0b | 1206 | constraintExpr constraintExpr_setFileloc (/*@returned@*/ constraintExpr c, fileloc loc) /*@modifies c @*/ |
3aaedf88 | 1207 | { |
1208 | constraintTerm t; | |
1209 | constraintExpr temp; | |
1210 | ||
dc92450f | 1211 | llassert(c != NULL); |
3aaedf88 | 1212 | |
1213 | switch (c->kind) | |
1214 | { | |
1215 | case term: | |
1216 | t = constraintExprData_termGetTerm (c->data); | |
d46ce6a4 | 1217 | t = constraintTerm_copy(t); |
3aaedf88 | 1218 | t = constraintTerm_setFileloc (t, loc); |
1219 | c->data = constraintExprData_termSetTerm (c->data, t); | |
1220 | break; | |
1221 | case binaryexpr: | |
1222 | ||
1223 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
d46ce6a4 | 1224 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1225 | temp = constraintExpr_setFileloc (temp, loc); |
1226 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); | |
1227 | ||
1228 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1229 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1230 | temp = constraintExpr_setFileloc (temp, loc); |
1231 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); | |
1232 | break; | |
1233 | case unaryExpr: | |
1234 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1235 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1236 | temp = constraintExpr_setFileloc (temp, loc); |
1237 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); | |
1238 | break; | |
1239 | } | |
1240 | return c; | |
1241 | } | |
1242 | ||
bb25bea6 | 1243 | static /*@only@*/ constraintExpr constraintExpr_simplifybinaryExpr (/*@only@*/constraintExpr c) |
3aaedf88 | 1244 | { |
1245 | constraintExpr e1, e2; | |
7c9c4a67 | 1246 | constraintExprBinaryOpKind op; |
1247 | ||
3aaedf88 | 1248 | e1 = constraintExprData_binaryExprGetExpr1 (c->data); |
1249 | e2 = constraintExprData_binaryExprGetExpr2 (c->data); | |
1250 | ||
1251 | if (constraintExpr_canGetValue (e1) && constraintExpr_canGetValue(e2) ) | |
1252 | { | |
b9904f57 | 1253 | long i; |
3aaedf88 | 1254 | |
1255 | i = constraintExpr_getValue(e1) + constraintExpr_getValue (e2); | |
d46ce6a4 | 1256 | constraintExpr_free(c); |
3aaedf88 | 1257 | c = constraintExpr_makeIntLiteral (i); |
3aaedf88 | 1258 | } |
7c9c4a67 | 1259 | else |
1260 | { | |
1261 | op = constraintExprData_binaryExprGetOp (c->data); | |
acfb6ad9 | 1262 | if (op == BINARYOP_MINUS) |
7c9c4a67 | 1263 | if (constraintExpr_similar(e1, e2) ) |
1264 | { | |
1265 | constraintExpr_free(c); | |
1266 | c = constraintExpr_makeIntLiteral (0); | |
1267 | } | |
1268 | } | |
1269 | ||
3aaedf88 | 1270 | return c; |
1271 | } | |
1272 | ||
bb25bea6 | 1273 | /* |
1274 | this thing takes the lexpr and expr of a constraint and modifies lexpr | |
1275 | and returns a (possiblly new) value for expr | |
1276 | */ | |
1277 | /* 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 */ | |
1278 | ||
1279 | /* the approach is a little Kludgy but seems to work. I should probably use something cleaner at some point ... */ | |
1280 | ||
1281 | ||
1282 | /*@only@*/ constraintExpr constraintExpr_solveBinaryExpr (constraintExpr lexpr, /*@only@*/ constraintExpr expr) | |
3aaedf88 | 1283 | { |
1284 | constraintExpr expr1, expr2; | |
1285 | constraintExprBinaryOpKind op; | |
1286 | ||
1287 | if (lexpr->kind != binaryexpr) | |
1288 | return expr; | |
1289 | ||
1290 | expr2 = constraintExprData_binaryExprGetExpr2 (lexpr->data); | |
1291 | expr1 = constraintExprData_binaryExprGetExpr1 (lexpr->data); | |
bb25bea6 | 1292 | |
3aaedf88 | 1293 | op = constraintExprData_binaryExprGetOp (lexpr->data); |
1294 | ||
bb25bea6 | 1295 | expr1 = constraintExpr_copy(expr1); |
1296 | expr2 = constraintExpr_copy(expr2); | |
1297 | ||
b7b694d6 | 1298 | /* drl possible problem : warning make sure this works */ |
1299 | ||
1300 | lexpr->kind = expr1->kind; | |
1301 | sfree (lexpr->data); | |
1302 | ||
1303 | lexpr->data = copyExprData (expr1->data, expr1->kind); | |
1304 | constraintExpr_free(expr1); | |
1305 | ||
0c91982e | 1306 | if (op == BINARYOP_PLUS) |
b7b694d6 | 1307 | expr = constraintExpr_makeSubtractExpr (expr, expr2); |
acfb6ad9 | 1308 | else if (op == BINARYOP_MINUS) |
b7b694d6 | 1309 | expr = constraintExpr_makeAddExpr (expr, expr2); |
1310 | else | |
1311 | BADEXIT; | |
1312 | ||
1313 | ||
1314 | return expr; | |
bb25bea6 | 1315 | |
c3e695ff | 1316 | /* |
1317 | #warning this needs to be checked | |
1318 | expr = constraintExpr_solveBinaryExpr (expr1, expr); | |
1319 | ||
1320 | expr = constraintExpr_solveBinaryExpr (expr2, expr); | |
1321 | return expr; | |
1322 | */ | |
3aaedf88 | 1323 | } |
1324 | ||
bb25bea6 | 1325 | static /*@only@*/ constraintExpr constraintExpr_simplifyunaryExpr (/*@only@*/ constraintExpr c) |
3aaedf88 | 1326 | { |
1327 | constraintExpr exp; | |
1328 | ||
1329 | llassert (c->kind == unaryExpr); | |
1330 | ||
d30bc0c7 | 1331 | DPRINTF ((message ("Doing constraintExpr_simplifyunaryExpr:%s", constraintExpr_unparse (c) ) ) ); |
3aaedf88 | 1332 | |
bb7c2085 | 1333 | if ((constraintExprData_unaryExprGetOp (c->data) != MAXSET) && |
3aaedf88 | 1334 | (constraintExprData_unaryExprGetOp (c->data) != MAXREAD) ) |
1335 | { | |
1336 | return c; | |
1337 | } | |
3aaedf88 | 1338 | |
1339 | exp = constraintExprData_unaryExprGetExpr (c->data); | |
a779b61e | 1340 | exp = constraintExpr_copy(exp); |
1341 | ||
3aaedf88 | 1342 | if (exp->kind == term) |
1343 | { | |
1344 | constraintTerm cterm; | |
1345 | ||
1346 | cterm = constraintExprData_termGetTerm (exp->data); | |
1347 | ||
1348 | if (constraintTerm_isStringLiteral(cterm) ) | |
1349 | { | |
1350 | cstring val; | |
1351 | val = constraintTerm_getStringLiteral (cterm); | |
1352 | if (constraintExprData_unaryExprGetOp (c->data) == MAXSET) | |
1353 | { | |
d46ce6a4 | 1354 | constraintExpr temp; |
1355 | ||
28bf4b0b | 1356 | temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) ); |
d46ce6a4 | 1357 | cstring_free(val); |
1358 | constraintExpr_free(c); | |
a779b61e | 1359 | constraintExpr_free(exp); |
1360 | ||
d46ce6a4 | 1361 | return temp; |
a779b61e | 1362 | |
3aaedf88 | 1363 | } |
1364 | if (constraintExprData_unaryExprGetOp (c->data) == MAXREAD) | |
1365 | { | |
d46ce6a4 | 1366 | constraintExpr temp; |
1367 | ||
28bf4b0b | 1368 | temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) ); |
d46ce6a4 | 1369 | cstring_free(val); |
1370 | constraintExpr_free(c); | |
a779b61e | 1371 | constraintExpr_free(exp); |
1372 | ||
d46ce6a4 | 1373 | return temp; |
3aaedf88 | 1374 | } |
1375 | BADEXIT; | |
1376 | } | |
d30bc0c7 | 1377 | |
b7b694d6 | 1378 | /* slight Kludge to hanlde var [] = { , , }; |
1379 | ** type syntax I don't think this is sounds but it should be good | |
1380 | ** enough. The C stanrad is very confusing about initialization | |
1381 | ** -- DRL 7/25/01 | |
1382 | */ | |
d30bc0c7 | 1383 | |
1384 | if (constraintTerm_isInitBlock(cterm) ) | |
1385 | { | |
1386 | constraintExpr temp; | |
1387 | int len; | |
1388 | ||
1389 | len = constraintTerm_getInitBlockLength(cterm); | |
1390 | ||
1391 | temp = constraintExpr_makeIntLiteral (len ); | |
1392 | ||
1393 | constraintExpr_free(c); | |
1394 | DPRINTF(( message("Changed too %q", constraintExpr_print(temp) | |
1395 | ) )); | |
a779b61e | 1396 | constraintExpr_free(exp); |
d30bc0c7 | 1397 | return temp; |
1398 | } | |
1399 | ||
a779b61e | 1400 | constraintExpr_free(exp); |
3aaedf88 | 1401 | return c; |
1402 | } | |
1403 | ||
1404 | if (exp->kind != binaryexpr) | |
a779b61e | 1405 | { |
1406 | constraintExpr_free(exp); | |
1407 | return c; | |
1408 | } | |
1409 | ||
0c91982e | 1410 | if (constraintExprData_binaryExprGetOp (exp->data) == BINARYOP_PLUS ) |
3aaedf88 | 1411 | { |
1412 | ||
b7b694d6 | 1413 | /* if (constraintExpr_canGetValue (constraintExprData_binaryExprGetExpr2 (exp->data) ) ) */ |
3aaedf88 | 1414 | { |
1415 | ||
4ab867d6 | 1416 | constraintExpr temp, temp2; |
3aaedf88 | 1417 | |
bb7c2085 | 1418 | DPRINTF ((message ("Doing fancy simplification") ) ); |
3aaedf88 | 1419 | |
1420 | temp = constraintExprData_binaryExprGetExpr2 (exp->data); | |
1421 | ||
1422 | temp2 = constraintExprData_binaryExprGetExpr1 (exp->data); | |
d46ce6a4 | 1423 | |
1424 | temp2 = constraintExpr_copy(temp2); | |
3aaedf88 | 1425 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp2); |
1426 | ||
1427 | ||
bb25bea6 | 1428 | temp = constraintExpr_copy (temp); |
1429 | ||
2934b455 | 1430 | c = constraintExpr_makeSubtractExpr (c, temp); |
3aaedf88 | 1431 | |
bb7c2085 | 1432 | DPRINTF ((message ("Done fancy simplification:%s", constraintExpr_unparse (c) ) ) ); |
3aaedf88 | 1433 | } |
1434 | } | |
1435 | ||
bb7c2085 | 1436 | DPRINTF ((message ("constraintExpr_simplifyUnaryExpr: Done simplification:%s", constraintExpr_unparse (c) ) ) ); |
a779b61e | 1437 | |
1438 | constraintExpr_free(exp); | |
3aaedf88 | 1439 | return c; |
1440 | } | |
1441 | ||
1442 | ||
bb25bea6 | 1443 | /*@only@*/ constraintExpr constraintExpr_simplify (/*@only@*/ constraintExpr c) |
3aaedf88 | 1444 | { |
1445 | constraintExprKind kind; | |
bb25bea6 | 1446 | constraintExpr ret; |
3aaedf88 | 1447 | constraintTerm t; |
3aaedf88 | 1448 | |
bb7c2085 | 1449 | DPRINTF ((message ("Doing constraintExpr_simplify:%s", constraintExpr_unparse (c) ) ) ); |
bb25bea6 | 1450 | |
3aaedf88 | 1451 | |
bb25bea6 | 1452 | /*@i22*/ |
3aaedf88 | 1453 | |
11db3170 | 1454 | /* drl: I think this is an Splint bug */ |
bb25bea6 | 1455 | |
1456 | ret = constraintExpr_copy(c); | |
1457 | ||
1458 | constraintExpr_free(c); | |
1459 | ||
1460 | ret = constraintExpr_simplifyChildren (ret); | |
1461 | ||
1462 | ret = constraintExpr_combineConstants (ret); | |
1463 | ||
1464 | ret = constraintExpr_simplifyChildren (ret); | |
1465 | ||
1466 | ||
1467 | kind = ret->kind; | |
3aaedf88 | 1468 | |
1469 | switch (kind) | |
1470 | { | |
1471 | case term: | |
bb25bea6 | 1472 | t = constraintExprData_termGetTerm (ret->data); |
d46ce6a4 | 1473 | t = constraintTerm_copy(t); |
3aaedf88 | 1474 | t = constraintTerm_simplify (t); |
bb25bea6 | 1475 | ret->data = constraintExprData_termSetTerm (ret->data, t); |
3aaedf88 | 1476 | break; |
1477 | case unaryExpr: | |
bb25bea6 | 1478 | ret = constraintExpr_simplifyunaryExpr (ret); |
3aaedf88 | 1479 | break; |
1480 | case binaryexpr: | |
bb25bea6 | 1481 | ret = constraintExpr_simplifybinaryExpr (ret); |
3aaedf88 | 1482 | break; |
1483 | default: | |
1484 | llassert(FALSE); | |
bb25bea6 | 1485 | } |
1486 | ||
bb7c2085 | 1487 | DPRINTF ((message ("constraintExpr_simplify returning :%s", constraintExpr_unparse (ret) ) ) ); |
bb25bea6 | 1488 | return ret; |
3aaedf88 | 1489 | |
1490 | } | |
1491 | ||
bb25bea6 | 1492 | /*@only@*/ |
4ab867d6 | 1493 | cstring constraintExpr_unparse (/*@temp@*/ /*@observer@*/ constraintExpr ex) /*@*/ |
3aaedf88 | 1494 | { |
1495 | cstring st; | |
1496 | constraintExprKind kind; | |
1497 | ||
1498 | llassert (ex != NULL); | |
1499 | ||
1500 | kind = ex->kind; | |
1501 | ||
1502 | switch (kind) | |
1503 | { | |
1504 | case term: | |
a779b61e | 1505 | |
1506 | if (context_getFlag (FLG_PARENCONSTRAINT) ) | |
1507 | { | |
1508 | st = message ("(%q) ", constraintTerm_print (constraintExprData_termGetTerm (ex->data))); | |
1509 | } | |
1510 | else | |
1511 | { | |
1512 | st = message ("%q", constraintTerm_print (constraintExprData_termGetTerm (ex->data))); | |
1513 | } | |
3aaedf88 | 1514 | break; |
1515 | case unaryExpr: | |
a779b61e | 1516 | st = message ("%q(%q)", |
1517 | constraintExprUnaryOpKind_print (constraintExprData_unaryExprGetOp (ex->data) ), | |
3aaedf88 | 1518 | constraintExpr_unparse (constraintExprData_unaryExprGetExpr (ex->data) ) |
1519 | ); | |
1520 | break; | |
1521 | case binaryexpr: | |
a779b61e | 1522 | if (context_getFlag (FLG_PARENCONSTRAINT) ) |
1523 | { | |
1524 | st = message ("(%q) %q (%q)", | |
3aaedf88 | 1525 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ), |
1526 | constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data) | |
1527 | ), | |
1528 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) ) | |
1529 | ); | |
a779b61e | 1530 | } |
1531 | else | |
1532 | { | |
1533 | st = message ("%q %q %q", | |
1534 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ), | |
1535 | constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data) | |
1536 | ), | |
1537 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) ) | |
1538 | ); | |
1539 | } | |
1540 | ||
3aaedf88 | 1541 | break; |
1542 | default: | |
1543 | llassert(FALSE); | |
1544 | st = message ("error"); | |
1545 | ||
1546 | } | |
1547 | ||
1548 | DPRINTF((message ("constraintExpr_unparse: '%s'",st) ) ); | |
1549 | return st; | |
1550 | } | |
1551 | ||
1552 | constraintExpr constraintExpr_doSRefFixBaseParam (/*@returned@*/ constraintExpr expr, exprNodeList arglist) | |
1553 | { | |
1554 | constraintTerm Term; | |
1555 | constraintExprKind kind; | |
1556 | constraintExpr expr1, expr2; | |
1557 | constraintExprData data; | |
1558 | llassert (expr != NULL); | |
1559 | ||
1560 | data = expr->data; | |
1561 | ||
1562 | kind = expr->kind; | |
1563 | ||
1564 | switch (kind) | |
1565 | { | |
1566 | case term: | |
1567 | Term = constraintExprData_termGetTerm(data); | |
d46ce6a4 | 1568 | Term = constraintTerm_copy(Term); |
1569 | ||
3aaedf88 | 1570 | Term = constraintTerm_doSRefFixBaseParam (Term, arglist); |
1571 | data = constraintExprData_termSetTerm(data, Term); | |
1572 | break; | |
1573 | case unaryExpr: | |
1574 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1575 | expr1 = constraintExpr_copy(expr1); |
1576 | ||
3aaedf88 | 1577 | expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist); |
1578 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1579 | break; | |
1580 | case binaryexpr: | |
1581 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1582 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1583 | ||
d46ce6a4 | 1584 | expr1 = constraintExpr_copy(expr1); |
1585 | expr2 = constraintExpr_copy(expr2); | |
1586 | ||
3aaedf88 | 1587 | expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist); |
1588 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1589 | expr2 = constraintExpr_doSRefFixBaseParam (expr2, arglist); | |
1590 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1591 | ||
1592 | break; | |
1593 | default: | |
1594 | llassert(FALSE); | |
1595 | data = NULL; | |
1596 | } | |
1597 | return expr; | |
1598 | } | |
1599 | ||
86d93ed3 | 1600 | /* |
1601 | / *@only@* / constraintExpr constraintExpr_doSRefFixInvarConstraint (/ *@only@* / constraintExpr expr, sRef s, ctype ct) | |
1602 | { | |
1603 | constraintExprKind kind; | |
1604 | constraintExpr expr1, expr2; | |
1605 | constraintExprData data; | |
1606 | llassert (expr != NULL); | |
1607 | ||
1608 | data = expr->data; | |
1609 | ||
1610 | kind = expr->kind; | |
1611 | ||
1612 | switch (kind) | |
1613 | { | |
1614 | case term: | |
1615 | expr = doSRefFixInvarConstraintTerm (expr, s, ct); | |
1616 | break; | |
1617 | case unaryExpr: | |
1618 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
1619 | expr1 = constraintExpr_copy(expr1); | |
1620 | expr1 = constraintExpr_doSRefFixInvarConstraint (expr1, s, ct); | |
1621 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1622 | break; | |
1623 | case binaryexpr: | |
1624 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1625 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1626 | ||
1627 | expr1 = constraintExpr_copy(expr1); | |
1628 | expr2 = constraintExpr_copy(expr2); | |
1629 | ||
1630 | expr1 = constraintExpr_doSRefFixInvarConstraint (expr1, s, ct); | |
1631 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1632 | expr2 = constraintExpr_doSRefFixInvarConstraint (expr2, s, ct); | |
1633 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1634 | ||
1635 | break; | |
1636 | default: | |
1637 | llassert(FALSE); | |
1638 | data = NULL; | |
1639 | } | |
1640 | return expr; | |
1641 | } | |
1642 | */ | |
1643 | ||
d46ce6a4 | 1644 | /*@only@*/ constraintExpr constraintExpr_doSRefFixConstraintParam (/*@only@*/ constraintExpr expr, exprNodeList arglist) /*@modifies expr@*/ |
3aaedf88 | 1645 | { |
1646 | constraintExprKind kind; | |
1647 | constraintExpr expr1, expr2; | |
1648 | constraintExprData data; | |
1649 | llassert (expr != NULL); | |
1650 | ||
1651 | data = expr->data; | |
1652 | ||
1653 | kind = expr->kind; | |
1654 | ||
1655 | switch (kind) | |
1656 | { | |
1657 | case term: | |
c3e695ff | 1658 | expr = doSRefFixConstraintParamTerm (expr, arglist); |
3aaedf88 | 1659 | break; |
1660 | case unaryExpr: | |
1661 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1662 | expr1 = constraintExpr_copy(expr1); |
3aaedf88 | 1663 | expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist); |
1664 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1665 | break; | |
1666 | case binaryexpr: | |
1667 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1668 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1669 | ||
d46ce6a4 | 1670 | expr1 = constraintExpr_copy(expr1); |
1671 | expr2 = constraintExpr_copy(expr2); | |
1672 | ||
3aaedf88 | 1673 | expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist); |
1674 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1675 | expr2 = constraintExpr_doSRefFixConstraintParam (expr2, arglist); | |
1676 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1677 | ||
1678 | break; | |
1679 | default: | |
1680 | llassert(FALSE); | |
1681 | data = NULL; | |
1682 | } | |
1683 | return expr; | |
1684 | } | |
1685 | ||
28bf4b0b | 1686 | /*@only@*/ constraintExpr constraintExpr_doFixResult (/*@only@*/ constraintExpr expr, /*@observer@*/ exprNode fcnCall) |
3aaedf88 | 1687 | { |
1688 | constraintExprKind kind; | |
1689 | constraintExpr expr1, expr2; | |
1690 | constraintExprData data; | |
1691 | llassert (expr != NULL); | |
1692 | ||
1693 | data = expr->data; | |
1694 | ||
1695 | kind = expr->kind; | |
1696 | ||
1697 | switch (kind) | |
1698 | { | |
1699 | case term: | |
c3e695ff | 1700 | expr = doFixResultTerm (expr, fcnCall); |
3aaedf88 | 1701 | break; |
1702 | case unaryExpr: | |
1703 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1704 | expr1 = constraintExpr_copy(expr1); |
1705 | ||
3aaedf88 | 1706 | expr1 = constraintExpr_doFixResult (expr1, fcnCall); |
1707 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1708 | break; | |
1709 | case binaryexpr: | |
1710 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1711 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1712 | ||
d46ce6a4 | 1713 | expr1 = constraintExpr_copy(expr1); |
1714 | expr2 = constraintExpr_copy(expr2); | |
1715 | ||
3aaedf88 | 1716 | expr1 = constraintExpr_doFixResult (expr1, fcnCall); |
1717 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1718 | expr2 = constraintExpr_doFixResult (expr2, fcnCall); | |
1719 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1720 | ||
1721 | break; | |
1722 | default: | |
1723 | llassert(FALSE); | |
1724 | data = NULL; | |
1725 | } | |
1726 | return expr; | |
1727 | } | |
1728 | ||
dc92450f | 1729 | cstring constraintExpr_print (constraintExpr expr) /*@*/ |
3aaedf88 | 1730 | { |
b9904f57 | 1731 | return constraintExpr_unparse (expr); |
3aaedf88 | 1732 | } |
1733 | ||
dc92450f | 1734 | bool constraintExpr_hasMaxSet (constraintExpr expr) /*@*/ |
3aaedf88 | 1735 | { |
1736 | cstring t; | |
1737 | ||
1738 | t = constraintExpr_unparse(expr); | |
1739 | ||
03d670b6 | 1740 | if (cstring_containsLit(t, "maxSet") != NULL ) |
d46ce6a4 | 1741 | { |
1742 | cstring_free(t); | |
1743 | return (TRUE); | |
1744 | } | |
c3e695ff | 1745 | else |
d46ce6a4 | 1746 | { |
1747 | cstring_free(t); | |
1748 | return FALSE; | |
1749 | } | |
3aaedf88 | 1750 | } |
1751 | ||
1752 | ||
1753 | ||
1754 | /*returns 1 0 -1 like strcmp | |
1755 | 1 => expr1 > expr2 | |
1756 | 0 => expr1 == expr2 | |
1757 | -1 => expr1 < expr2 | |
1758 | */ | |
b9904f57 | 1759 | |
3aaedf88 | 1760 | int constraintExpr_compare (constraintExpr expr1, constraintExpr expr2) |
1761 | { | |
b9904f57 | 1762 | long value1, value2; |
3aaedf88 | 1763 | |
1764 | if (constraintExpr_similar (expr1, expr2) ) | |
1765 | { | |
1766 | return 0; | |
1767 | } | |
b9904f57 | 1768 | |
3aaedf88 | 1769 | value1 = constraintExpr_getValue(expr1); |
1770 | value2 = constraintExpr_getValue(expr2); | |
1771 | ||
1772 | if (value1 > value2) | |
1773 | return 1; | |
1774 | ||
1775 | if (value1 == value2) | |
1776 | return 0; | |
1777 | ||
1778 | else | |
1779 | return -1; | |
1780 | } | |
1781 | ||
b9904f57 | 1782 | long constraintExpr_getValue (constraintExpr expr) |
3aaedf88 | 1783 | { |
1784 | llassert (expr->kind == term); | |
b9904f57 | 1785 | return (constraintTerm_getValue (constraintExprData_termGetTerm (expr->data))); |
3aaedf88 | 1786 | } |
1787 | ||
1788 | bool constraintExpr_canGetValue (constraintExpr expr) | |
1789 | { | |
1790 | switch (expr->kind) | |
1791 | { | |
1792 | case term: | |
1793 | return constraintTerm_canGetValue (constraintExprData_termGetTerm (expr->data) ); | |
1794 | default: | |
1795 | return FALSE; | |
1796 | ||
1797 | } | |
c3e695ff | 1798 | |
1799 | BADEXIT; | |
3aaedf88 | 1800 | } |
1801 | ||
3aaedf88 | 1802 | fileloc constraintExpr_getFileloc (constraintExpr expr) |
1803 | { | |
1804 | constraintExpr e; | |
1805 | constraintTerm t; | |
1806 | constraintExprKind kind; | |
1807 | ||
1808 | kind = expr->kind; | |
1809 | ||
1810 | switch (kind) | |
1811 | { | |
1812 | case term: | |
1813 | t = constraintExprData_termGetTerm (expr->data); | |
1814 | return (constraintTerm_getFileloc (t) ); | |
c3e695ff | 1815 | /*@notreached@*/ |
3aaedf88 | 1816 | break; |
1817 | case unaryExpr: | |
1818 | e = constraintExprData_unaryExprGetExpr (expr->data); | |
1819 | return (constraintExpr_getFileloc (e) ); | |
c3e695ff | 1820 | /*@notreached@*/ |
3aaedf88 | 1821 | break; |
1822 | case binaryexpr: | |
1823 | e = constraintExprData_binaryExprGetExpr1 (expr->data); | |
1824 | return (constraintExpr_getFileloc (e) ); | |
c3e695ff | 1825 | /*@notreached@*/ |
1826 | break; | |
3aaedf88 | 1827 | } |
1828 | llassert (FALSE); | |
3aaedf88 | 1829 | return (fileloc_undefined); |
1830 | } | |
1831 | ||
c3e695ff | 1832 | /*drl moved from constriantTerm.c 5/20/001*/ |
4ab867d6 | 1833 | static /*@only@*/ constraintExpr |
1834 | doFixResultTerm (/*@only@*/ constraintExpr e, /*@exposed@*/ exprNode fcnCall) | |
c3e695ff | 1835 | { |
1836 | constraintTerm t; | |
1837 | sRef s; | |
1838 | /*maybe this should move to cosntraintExpr.c -drl7x 5/18/01*/ | |
a779b61e | 1839 | /*@i22*/ |
1840 | ||
1841 | constraintExprData data = e->data; | |
1842 | constraintExprKind kind = e->kind; | |
c3e695ff | 1843 | |
1844 | constraintExpr ret; | |
1845 | ||
1846 | llassert(kind == term); | |
1847 | ||
1848 | t = constraintExprData_termGetTerm (data); | |
28bf4b0b | 1849 | llassert (constraintTerm_isDefined(t) ); |
c3e695ff | 1850 | |
1851 | ret = e; | |
a8e557d3 | 1852 | switch (constraintTerm_getKind(t) ) |
c3e695ff | 1853 | { |
1854 | case EXPRNODE: | |
1855 | break; | |
1856 | case INTLITERAL: | |
1857 | break; | |
1858 | ||
1859 | case SREF: | |
a8e557d3 | 1860 | s = constraintTerm_getSRef(t); |
c3e695ff | 1861 | if (sRef_isResult (s)) |
1862 | { | |
1863 | ret = constraintExpr_makeExprNode(fcnCall); | |
4ab867d6 | 1864 | constraintExpr_free(e); |
1865 | e = NULL; | |
1866 | } | |
1867 | else | |
1868 | { | |
1869 | e = NULL; | |
c3e695ff | 1870 | } |
1871 | break; | |
1872 | default: | |
1873 | BADEXIT; | |
1874 | } | |
1875 | ||
1876 | return ret; | |
1877 | ||
1878 | } | |
86d93ed3 | 1879 | /* |
1880 | / *@only@* / static constraintExpr | |
1881 | doSRefFixInvarConstraintTerm (/ *@only@* / constraintExpr e, | |
1882 | sRef s, ctype ct) | |
1883 | { | |
1884 | constraintTerm t; | |
1885 | ||
1886 | constraintExprData data = e->data; | |
1887 | ||
1888 | constraintExprKind kind = e->kind; | |
1889 | ||
1890 | constraintExpr ret; | |
c3e695ff | 1891 | |
86d93ed3 | 1892 | llassert(kind == term); |
1893 | ||
1894 | t = constraintExprData_termGetTerm (data); | |
1895 | llassert (constraintTerm_isDefined(t) ); | |
1896 | ||
1897 | ret = e; | |
1898 | ||
1899 | DPRINTF (("Fixing: %s", constraintExpr_print (e))); | |
1900 | ||
1901 | switch (constraintTerm_getKind(t)) | |
1902 | { | |
1903 | case EXPRNODE: | |
1904 | DPRINTF((message ("%q @ %q ", constraintTerm_print(t), | |
1905 | fileloc_unparse (constraintTerm_getFileloc(t) ) ) )); | |
1906 | break; | |
1907 | case INTLITERAL: | |
1908 | DPRINTF((message (" %q ", constraintTerm_print (t)) )); | |
1909 | break; | |
1910 | ||
1911 | case SREF: | |
1912 | / * evans 2001-07-24: constants should use the original term * / | |
1913 | if (!constraintTerm_canGetValue (t)) | |
1914 | { | |
1915 | sRef snew; | |
1916 | DPRINTF ((message("Doing sRef_fixInvarConstraint for %q ", | |
1917 | constraintTerm_print (t) ) )); | |
1918 | ||
1919 | snew = fixSref (ct, s, constraintTerm_getSRef(t)); | |
1920 | ||
1921 | ret = constraintExpr_makeTermsRef(snew); | |
1922 | ||
1923 | constraintExpr_free (e); | |
1924 | ||
1925 | DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ", | |
1926 | constraintExpr_print (ret) ) )); | |
1927 | / *@-branchstate@* / | |
1928 | } / *@=branchstate@* / | |
1929 | ||
1930 | break; | |
1931 | default: | |
1932 | BADEXIT; | |
1933 | } | |
1934 | ||
1935 | return ret; | |
1936 | ||
1937 | } | |
1938 | */ | |
1939 | ||
c3e695ff | 1940 | /*drl moved from constriantTerm.c 5/20/001*/ |
d46ce6a4 | 1941 | /*@only@*/ static constraintExpr |
4ab867d6 | 1942 | doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr e, /*@observer@*/ /*@temp@*/ exprNodeList arglist) |
c3e695ff | 1943 | { |
1944 | constraintTerm t; | |
1945 | ||
d46ce6a4 | 1946 | constraintExprData data = e->data; |
c3e695ff | 1947 | |
d46ce6a4 | 1948 | constraintExprKind kind = e->kind; |
c3e695ff | 1949 | |
1950 | constraintExpr ret; | |
1951 | ||
1952 | llassert(kind == term); | |
1953 | ||
1954 | t = constraintExprData_termGetTerm (data); | |
28bf4b0b | 1955 | llassert (constraintTerm_isDefined(t) ); |
c3e695ff | 1956 | |
1957 | ret = e; | |
b9904f57 | 1958 | |
1959 | DPRINTF (("Fixing: %s", constraintExpr_print (e))); | |
1960 | ||
1961 | switch (constraintTerm_getKind(t)) | |
c3e695ff | 1962 | { |
1963 | case EXPRNODE: | |
bb25bea6 | 1964 | DPRINTF((message ("%q @ %q ", constraintTerm_print(t), |
1965 | fileloc_unparse (constraintTerm_getFileloc(t) ) ) )); | |
c3e695ff | 1966 | break; |
1967 | case INTLITERAL: | |
bb25bea6 | 1968 | DPRINTF((message (" %q ", constraintTerm_print (t)) )); |
d46ce6a4 | 1969 | break; |
c3e695ff | 1970 | |
1971 | case SREF: | |
b9904f57 | 1972 | /* evans 2001-07-24: constants should use the original term */ |
1973 | if (!constraintTerm_canGetValue (t)) | |
1974 | { | |
1975 | DPRINTF ((message("Doing sRef_fixConstraintParam for %q ", | |
1976 | constraintTerm_print (t) ) )); | |
1977 | ret = sRef_fixConstraintParam (constraintTerm_getSRef(t), arglist); | |
1978 | ||
1979 | constraintExpr_free (e); | |
1980 | ||
1981 | DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ", | |
1982 | constraintExpr_print (ret) ) )); | |
1983 | /*@-branchstate@*/ | |
1984 | } /*@=branchstate@*/ | |
d46ce6a4 | 1985 | |
c3e695ff | 1986 | break; |
1987 | default: | |
1988 | BADEXIT; | |
1989 | } | |
b9904f57 | 1990 | |
c3e695ff | 1991 | return ret; |
1992 | ||
1993 | } | |
3aaedf88 | 1994 | |
1995 | ||
1996 | /* bool constraintExpr_includesTerm (constraintExpr expr, constraintTerm term) */ | |
1997 | /* { */ | |
1998 | /* if (constraintTerm_hasTerm (expr->term, term) ) */ | |
1999 | /* return TRUE; */ | |
2000 | ||
bb7c2085 | 2001 | /* if ((expr->expr) != NULL) */ |
3aaedf88 | 2002 | /* { */ |
2003 | /* return ( constraintExpr_includesTerm (expr->expr, term) ); */ | |
2004 | /* } */ | |
2005 | /* return FALSE; */ | |
2006 | ||
2007 | /* } */ | |
2008 | ||
bb25bea6 | 2009 | /*drl added 6/11/01 */ |
2010 | bool constraintExpr_isBinaryExpr (/*@observer@*/ constraintExpr c) | |
2011 | { | |
2012 | if (c->kind == binaryexpr) | |
2013 | return TRUE; | |
3aaedf88 | 2014 | |
bb25bea6 | 2015 | else |
2016 | return FALSE; | |
2017 | } | |
3aaedf88 | 2018 | |
a779b61e | 2019 | /*drl added 8/08/001 */ |
2020 | bool constraintExpr_isTerm (/*@observer@*/ constraintExpr c) /*@*/ | |
2021 | { | |
2022 | if (c->kind == term) | |
2023 | return TRUE; | |
2024 | ||
2025 | else | |
2026 | return FALSE; | |
2027 | } | |
2028 | ||
2029 | /*@observer@*/ /*@temp@*/ constraintTerm constraintExpr_getTerm ( /*@temp@*/ /*@observer@*/ constraintExpr c) /*@*/ | |
2030 | { | |
2031 | constraintTerm term; | |
2032 | ||
2033 | llassert(constraintExpr_isTerm(c) ); | |
2034 | ||
2035 | term = constraintExprData_termGetTerm(c->data); | |
2036 | ||
2037 | return term; | |
2038 | } | |
2039 | ||
920a3797 | 2040 | static void binaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f) |
2041 | { | |
2042 | constraintExpr expr1; | |
2043 | constraintExprBinaryOpKind binaryOp; | |
2044 | constraintExpr expr2; | |
2045 | ||
2046 | ||
2047 | binaryOp = constraintExprData_binaryExprGetOp (data); | |
2048 | ||
2049 | fprintf(f, "%d\n", (int) binaryOp); | |
2050 | ||
2051 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
2052 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
2053 | ||
2054 | fprintf(f, "e1\n"); | |
2055 | ||
2056 | constraintExpr_dump(expr1, f); | |
2057 | ||
2058 | fprintf(f, "e2\n"); | |
2059 | constraintExpr_dump(expr2, f); | |
2060 | } | |
2061 | ||
2062 | ||
2063 | static constraintExpr binaryExpr_undump (FILE *f) | |
2064 | { | |
2065 | constraintExpr expr1; | |
2066 | constraintExprBinaryOpKind binaryOp; | |
2067 | constraintExpr expr2; | |
2068 | ||
2069 | constraintExpr ret; | |
2070 | ||
2071 | ||
2072 | ||
2073 | char * str; | |
2074 | char * os; | |
2075 | ||
3be9a165 | 2076 | os = mstring_create (MAX_DUMP_LINE_LENGTH); |
2077 | ||
920a3797 | 2078 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); |
2079 | ||
2080 | ||
28bf4b0b | 2081 | binaryOp = (constraintExprBinaryOpKind) reader_getInt(&str); |
920a3797 | 2082 | |
2083 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2084 | ||
28bf4b0b | 2085 | reader_checkChar (&str, 'e'); |
2086 | reader_checkChar (&str, '1'); | |
920a3797 | 2087 | |
2088 | expr1 = constraintExpr_undump (f); | |
2089 | ||
2090 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2091 | ||
28bf4b0b | 2092 | reader_checkChar (&str, 'e'); |
2093 | reader_checkChar (&str, '2'); | |
920a3797 | 2094 | |
2095 | expr2 = constraintExpr_undump (f); | |
2096 | ||
2097 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2); | |
2098 | ret->data = constraintExprData_binaryExprSetOp(ret->data, binaryOp); | |
2099 | ||
2100 | free(os); | |
2101 | return ret; | |
2102 | } | |
2103 | ||
2104 | ||
2105 | ||
2106 | static void unaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f) | |
2107 | { | |
2108 | ||
2109 | constraintExpr expr; | |
2110 | constraintExprUnaryOpKind unaryOp; | |
2111 | ||
2112 | unaryOp = constraintExprData_unaryExprGetOp (data); | |
2113 | ||
2114 | fprintf(f, "%d\n", (int) unaryOp); | |
2115 | ||
2116 | expr = constraintExprData_unaryExprGetExpr (data); | |
2117 | ||
2118 | constraintExpr_dump(expr, f); | |
2119 | } | |
2120 | ||
2121 | static constraintExpr unaryExpr_undump ( FILE *f) | |
2122 | { | |
2123 | ||
2124 | constraintExpr expr; | |
2125 | constraintExprUnaryOpKind unaryOp; | |
2126 | constraintExpr ret; | |
2127 | ||
2128 | char * str; | |
2129 | char * os; | |
2130 | ||
2131 | str = mstring_create (MAX_DUMP_LINE_LENGTH); | |
2132 | os = str; | |
2133 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2134 | ||
28bf4b0b | 2135 | unaryOp = (constraintExprUnaryOpKind) reader_getInt(&str); |
920a3797 | 2136 | |
2137 | expr = constraintExpr_undump (f); | |
2138 | ||
2139 | ret = constraintExpr_makeUnaryOp (expr, unaryOp); | |
2140 | ||
2141 | free(os); | |
2142 | ||
2143 | return ret; | |
2144 | } | |
2145 | ||
2146 | void constraintExpr_dump (/*@observer@*/ constraintExpr expr, FILE *f) | |
2147 | { | |
2148 | constraintExprKind kind; | |
2149 | constraintTerm t; | |
2150 | ||
0f9b7373 | 2151 | |
2152 | DPRINTF((message("constraintExpr_dump:: dumping constraintExpr %s", | |
2153 | constraintExpr_unparse(expr) | |
2154 | ) )); | |
920a3797 | 2155 | |
2156 | kind = expr->kind; | |
2157 | ||
2158 | fprintf(f,"%d\n", (int) kind); | |
2159 | ||
2160 | switch (kind) | |
2161 | { | |
2162 | case term: | |
2163 | t = constraintExprData_termGetTerm (expr->data); | |
2164 | constraintTerm_dump (t, f); | |
2165 | break; | |
2166 | case unaryExpr: | |
2167 | unaryExpr_dump (expr->data, f); | |
2168 | break; | |
2169 | case binaryexpr: | |
2170 | binaryExpr_dump (expr->data, f); | |
2171 | break; | |
2172 | } | |
2173 | } | |
2174 | ||
2175 | /*@only@*/ constraintExpr constraintExpr_undump (FILE *f) | |
2176 | { | |
2177 | constraintExprKind kind; | |
2178 | constraintTerm t; | |
2179 | constraintExpr ret; | |
2180 | ||
2181 | char * s; | |
2182 | char * os; | |
2183 | ||
2184 | s = mstring_create (MAX_DUMP_LINE_LENGTH); | |
2185 | ||
2186 | os = s; | |
2187 | ||
2188 | s = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2189 | ||
28bf4b0b | 2190 | kind = (constraintExprKind) reader_getInt(&s); |
920a3797 | 2191 | |
2192 | free (os); | |
2193 | ||
2194 | switch (kind) | |
2195 | { | |
2196 | case term: | |
2197 | t = constraintTerm_undump (f); | |
2198 | ret = constraintExpr_makeTerm(t); | |
2199 | break; | |
2200 | case unaryExpr: | |
2201 | ret = unaryExpr_undump (f); | |
2202 | break; | |
2203 | case binaryexpr: | |
2204 | ret = binaryExpr_undump (f); | |
2205 | break; | |
2206 | } | |
2207 | ||
2208 | return ret; | |
2209 | ||
2210 | } | |
a779b61e | 2211 | |
2212 | int constraintExpr_getDepth (constraintExpr ex) | |
2213 | { | |
2214 | int ret; | |
2215 | ||
2216 | constraintExprKind kind; | |
2217 | ||
2218 | llassert (ex != NULL); | |
2219 | ||
2220 | kind = ex->kind; | |
2221 | ||
2222 | switch (kind) | |
2223 | { | |
2224 | case term: | |
2225 | ret = 1; | |
2226 | break; | |
2227 | case unaryExpr: | |
2228 | ret = constraintExpr_getDepth (constraintExprData_unaryExprGetExpr (ex->data) ); | |
2229 | ret++; | |
2230 | ||
2231 | break; | |
2232 | case binaryexpr: | |
2233 | ret = 0; | |
2234 | ret = constraintExpr_getDepth (constraintExprData_binaryExprGetExpr1 (ex->data) ); | |
2235 | ||
2236 | ret++; | |
2237 | ||
2238 | ret += constraintExpr_getDepth (constraintExprData_binaryExprGetExpr2 (ex->data) ); | |
2239 | ||
2240 | break; | |
2241 | default: | |
2242 | BADEXIT; | |
2243 | } | |
2244 | ||
2245 | return ret; | |
2246 | } | |
2247 | ||
2248 | ||
86d93ed3 | 2249 | bool constraintExpr_canGetCType (constraintExpr e) /*@*/ |
2250 | { | |
2251 | if (e->kind == term) | |
2252 | { | |
2253 | return TRUE; | |
2254 | } | |
2255 | else | |
2256 | { | |
2257 | DPRINTF(( message("constraintExpr_canGetCType: can't get type for %s ", | |
2258 | constraintExpr_print(e) ) )); | |
2259 | return FALSE; | |
2260 | } | |
2261 | } | |
2262 | ||
2263 | ctype constraintExpr_getCType (constraintExpr e) /*@*/ | |
2264 | { | |
2265 | constraintTerm t; | |
2266 | ||
2267 | llassert(constraintExpr_canGetCType(e) ); | |
2268 | ||
2269 | switch (e->kind) | |
2270 | { | |
2271 | case term: | |
2272 | t = constraintExprData_termGetTerm (e->data); | |
2273 | return (constraintTerm_getCType(t) ); | |
2274 | /* assume that a unary expression will be an int ... */ | |
2275 | case unaryExpr: | |
2276 | return ctype_signedintegral; | |
2277 | ||
2278 | /* drl for just return type of first operand */ | |
2279 | case binaryexpr: | |
2280 | return ( | |
2281 | constraintExpr_getCType | |
2282 | (constraintExprData_binaryExprGetExpr1 (e->data) ) | |
2283 | ); | |
2284 | default: | |
2285 | BADEXIT; | |
2286 | } | |
2287 | BADEXIT; | |
2288 | } | |
2289 | ||
2290 | /* drl add 10-5-001 */ | |
2291 | ||
2292 | static bool constraintExpr_hasTypeChange(constraintExpr e) | |
2293 | { | |
2294 | if (constraintExpr_isDefined((e)) && (e->ct == TRUE) ) | |
2295 | { | |
2296 | return TRUE; | |
2297 | } | |
2298 | ||
2299 | if (e->kind == unaryExpr) | |
2300 | { | |
2301 | if (constraintExprData_unaryExprGetOp (e->data) == MAXSET) | |
2302 | { | |
2303 | constraintExpr ce; | |
2304 | ||
2305 | ce = constraintExprData_unaryExprGetExpr(e->data); | |
2306 | ||
2307 | return (constraintExpr_hasTypeChange(ce) ); | |
2308 | } | |
2309 | ||
2310 | } | |
2311 | return FALSE; | |
2312 | } | |
2313 | ||
2314 | /* drl add 10-5-001 */ | |
2315 | ||
2316 | static ctype constraintExpr_getOrigType (constraintExpr e) | |
2317 | { | |
2318 | ||
2319 | llassert(constraintExpr_hasTypeChange(e) ); | |
2320 | ||
2321 | ||
2322 | if (e->ct == TRUE) | |
2323 | { | |
2324 | return e->origType; | |
2325 | } | |
2326 | ||
2327 | if (e->kind == unaryExpr) | |
2328 | { | |
2329 | if (constraintExprData_unaryExprGetOp (e->data) == MAXSET) | |
2330 | { | |
2331 | constraintExpr ce; | |
2332 | ||
2333 | ce = constraintExprData_unaryExprGetExpr(e->data); | |
2334 | ||
2335 | return (constraintExpr_getOrigType(ce) ); | |
2336 | } | |
2337 | ||
2338 | } | |
2339 | ||
2340 | BADEXIT; | |
2341 | } | |
2342 | ||
2343 | /*drl added these around 10/18/001*/ | |
2344 | ||
2345 | static /*@only@*/ constraintExpr constraintExpr_div (/*@only@*/ constraintExpr e, /*@unused@*/ ctype ct) | |
2346 | { | |
2347 | return e; | |
2348 | } | |
2349 | ||
2350 | static /*@only@*/ constraintExpr constraintTerm_simpleDivTypeExprNode(/*@only@*/ constraintExpr e, ctype ct) | |
2351 | { | |
2352 | exprData data; | |
2353 | exprNode t1, t2, expr; | |
2354 | lltok tok; | |
2355 | constraintTerm t; | |
2356 | ||
2357 | DPRINTF(( | |
2358 | message("constraintTerm_simpleDivTypeExprNode e=%s, ct=%s", | |
2359 | constraintExpr_print(e), ctype_unparse(ct) | |
2360 | ) | |
2361 | )); | |
2362 | ||
2363 | t = constraintExprData_termGetTerm(e->data); | |
2364 | ||
2365 | expr = constraintTerm_getExprNode(t); | |
2366 | ||
2367 | if (expr->kind == XPR_OP) | |
2368 | { | |
2369 | data = expr->edata; | |
2370 | ||
2371 | t1 = exprData_getOpA (data); | |
2372 | t2 = exprData_getOpB (data); | |
2373 | tok = exprData_getOpTok (data); | |
2374 | if (lltok_isMult(tok) ) | |
2375 | { | |
2376 | ||
2377 | if ((t1->kind == XPR_SIZEOF) || (t1->kind == XPR_SIZEOFT) ) | |
2378 | { | |
2379 | ctype ct2; | |
2380 | ||
2381 | if (t1->kind == XPR_SIZEOFT) | |
2382 | { | |
2383 | ct2 = qtype_getType (exprData_getType (t1->edata)); | |
2384 | } | |
2385 | else | |
2386 | { | |
2387 | ct2 = qtype_getType (exprData_getType(exprData_getSingle (t1->edata)->edata ) ); | |
2388 | } | |
2389 | if (ctype_match (ctype_makePointer(ct2), ct) ) | |
2390 | { | |
2391 | /* this is a bit sloopy but ... */ | |
2392 | constraintExpr_free(e); | |
2393 | return constraintExpr_makeExprNode(t2); | |
2394 | } | |
2395 | } | |
2396 | ||
2397 | ||
2398 | else if ((t2->kind == XPR_SIZEOF) || (t2->kind == XPR_SIZEOFT) ) | |
2399 | { | |
2400 | ctype ct2; | |
2401 | ||
2402 | if (t2->kind == XPR_SIZEOFT) | |
2403 | { | |
2404 | ct2 = qtype_getType (exprData_getType (t2->edata)); | |
2405 | } | |
2406 | else | |
2407 | { | |
2408 | ct2 = qtype_getType (exprData_getType(exprData_getSingle (t2->edata)->edata ) ); | |
2409 | } | |
2410 | if (ctype_match (ctype_makePointer(ct2),ct) ) | |
2411 | { | |
2412 | /* sloopy way to do this... */ /*@i22*/ | |
2413 | constraintExpr_free(e); | |
2414 | return constraintExpr_makeExprNode(t1); | |
2415 | } | |
2416 | } | |
2417 | else | |
2418 | { | |
2419 | /*empty*/ | |
2420 | } | |
2421 | ||
2422 | } | |
2423 | } | |
2424 | return (constraintExpr_div (e, ct) ); | |
2425 | } | |
2426 | ||
2427 | static /*@only@*/ constraintExpr simpleDivType (/*@only@*/ constraintExpr e, ctype ct) | |
2428 | { | |
2429 | /*@i333*/ | |
2430 | DPRINTF(( (message("simpleDiv got %s ", constraintExpr_unparse(e) ) ) | |
2431 | )); | |
2432 | ||
2433 | switch (e->kind) | |
2434 | { | |
2435 | case term: | |
2436 | ||
2437 | { | |
2438 | constraintTerm t; | |
2439 | ||
2440 | t = constraintExprData_termGetTerm(e->data); | |
2441 | ||
2442 | ||
2443 | if (constraintTerm_isExprNode (t) ) | |
2444 | { | |
2445 | return constraintTerm_simpleDivTypeExprNode(e, ct); | |
2446 | ||
2447 | /* search for * size of ct and remove */ | |
2448 | } | |
2449 | return constraintExpr_div (e, ct); | |
2450 | } | |
2451 | ||
2452 | case binaryexpr: | |
2453 | { | |
2454 | constraintExpr temp; | |
2455 | ||
2456 | temp = constraintExprData_binaryExprGetExpr1 (e->data); | |
2457 | temp = constraintExpr_copy(temp); | |
2458 | temp = simpleDivType (temp, ct); | |
2459 | ||
2460 | e->data = constraintExprData_binaryExprSetExpr1 (e->data, temp); | |
2461 | ||
2462 | temp = constraintExprData_binaryExprGetExpr2 (e->data); | |
2463 | temp = constraintExpr_copy(temp); | |
2464 | temp = simpleDivType (temp, ct); | |
2465 | e->data = constraintExprData_binaryExprSetExpr2 (e->data, temp); | |
2466 | ||
2467 | DPRINTF(( (message("simpleDiv binaryexpr returning %s ", constraintExpr_unparse(e) ) ) | |
2468 | )); | |
2469 | ||
2470 | return e; | |
2471 | } | |
2472 | case unaryExpr: | |
2473 | return constraintExpr_div (e, ct); | |
2474 | ||
2475 | default: | |
2476 | BADEXIT; | |
2477 | } | |
2478 | } | |
2479 | ||
2480 | static /*@only@*/ constraintExpr constraintExpr_adjustMaxSetForCast(/*@only@*/ constraintExpr e, ctype ct) | |
2481 | { | |
2482 | ||
2483 | DPRINTF(( (message("constraintExpr_adjustMaxSetForCast got %s ", constraintExpr_unparse(e) ) ) | |
2484 | )); | |
2485 | ||
2486 | e = constraintExpr_makeIncConstraintExpr(e); | |
2487 | ||
2488 | e = constraintExpr_simplify(e); | |
2489 | ||
2490 | ||
2491 | e = simpleDivType (e, ct); | |
2492 | ||
2493 | e = constraintExpr_makeDecConstraintExpr(e); | |
2494 | ||
2495 | e = constraintExpr_simplify(e); | |
2496 | ||
2497 | DPRINTF(( (message("constraintExpr_adjustMaxSetForCast returning %s ", constraintExpr_unparse(e) ) ) | |
2498 | )); | |
2499 | ||
2500 | return e; | |
2501 | } | |
2502 |