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65f973be | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
c59f5181 | 3 | ** Copyright (C) 1994-2003 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 | |
86d93ed3 | 40 | static ctype constraintExpr_getOrigType (constraintExpr p_e); |
41 | static bool constraintExpr_hasTypeChange(constraintExpr p_e) /*@*/; | |
920a3797 | 42 | |
28bf4b0b | 43 | static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/constraintExpr p_expr, int p_literal); |
bb25bea6 | 44 | |
920a3797 | 45 | |
86d93ed3 | 46 | /*@only@*/ static constraintExpr |
47 | doSRefFixInvarConstraintTerm (/*@only@*/ constraintExpr p_e, | |
48 | sRef p_s, ctype p_ct); | |
49 | ||
d46ce6a4 | 50 | /*@only@*/ static constraintExpr |
28bf4b0b | 51 | doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr p_e, /*@temp@*/ /*@observer@*/ exprNodeList p_arglist) /*@modifies p_e@*/; |
c3e695ff | 52 | |
4ab867d6 | 53 | static /*@only@*/ constraintExpr |
28bf4b0b | 54 | doFixResultTerm (/*@only@*/ constraintExpr p_e, /*@exposed@*/ exprNode p_fcnCall) |
55 | /*@modifies p_e@*/; | |
86d93ed3 | 56 | |
57 | static bool constraintExpr_canGetCType (constraintExpr p_e) /*@*/; | |
58 | ||
59 | static ctype constraintExpr_getCType (constraintExpr p_e); | |
60 | ||
61 | static /*@only@*/ constraintExpr constraintExpr_adjustMaxSetForCast(/*@only@*/ constraintExpr p_e, ctype p_ct); | |
62 | ||
749f175a | 63 | /*@special@*/ /*@notnull@*/ static constraintExpr constraintExpr_makeBinaryOp (void) |
b7b694d6 | 64 | /* @allocates result->data @ @sets result->kind @ */ ; |
3aaedf88 | 65 | |
d46ce6a4 | 66 | void constraintExpr_free (/*@only@*/ constraintExpr expr) |
67 | { | |
68 | if (constraintExpr_isDefined(expr) ) | |
69 | { | |
70 | switch (expr->kind) | |
71 | { | |
72 | case unaryExpr: | |
73 | constraintExprData_freeUnaryExpr(expr->data); | |
74 | break; | |
75 | case binaryexpr: | |
76 | constraintExprData_freeBinaryExpr(expr->data); | |
77 | break; | |
78 | case term: | |
79 | constraintExprData_freeTerm(expr->data); | |
80 | break; | |
81 | default: | |
82 | BADEXIT; | |
83 | } | |
bb25bea6 | 84 | |
85 | expr->data = NULL; | |
d46ce6a4 | 86 | free (expr); |
87 | } | |
88 | else | |
89 | { | |
90 | llcontbug(message("attempted to free null pointer in constraintExpr_free")); | |
91 | } | |
92 | } | |
93 | ||
3aaedf88 | 94 | bool constraintExpr_isLit (constraintExpr expr) |
95 | { | |
dc92450f | 96 | llassert (expr != NULL); |
3aaedf88 | 97 | |
98 | if (expr->kind == term) | |
99 | { | |
100 | constraintTerm term = constraintExprData_termGetTerm (expr->data); | |
101 | if (constraintTerm_isIntLiteral (term) ) | |
102 | { | |
103 | return TRUE; | |
104 | } | |
105 | ||
106 | } | |
107 | return FALSE; | |
108 | } | |
109 | ||
7c9c4a67 | 110 | static bool isZeroBinaryOp (constraintExpr expr) |
111 | { | |
112 | constraintExpr e2; | |
113 | ||
7272a1c1 | 114 | llassert (expr != NULL); /* evans 2001-07-18 */ |
115 | ||
7c9c4a67 | 116 | if (!constraintExpr_isBinaryExpr (expr) ) |
117 | { | |
118 | return FALSE; | |
119 | } | |
120 | ||
121 | ||
122 | e2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
123 | ||
7272a1c1 | 124 | llassert (e2 != NULL); /* evans 2001-07-18 */ |
125 | ||
7c9c4a67 | 126 | if (constraintExpr_isBinaryExpr (e2) ) |
127 | { | |
128 | constraintExpr e1; | |
129 | constraintExprBinaryOpKind op; | |
130 | ||
131 | op = constraintExprData_binaryExprGetOp (e2->data); | |
132 | ||
133 | e1 = constraintExprData_binaryExprGetExpr1(e2->data); | |
134 | ||
135 | if (constraintExpr_isLit(e1) ) | |
136 | { | |
137 | if (constraintExpr_getValue(e1) == 0 ) | |
138 | { | |
139 | return TRUE; | |
140 | } | |
141 | } | |
142 | } | |
143 | return FALSE; | |
144 | } | |
145 | ||
146 | /* change expr + (o - expr) to (expr -expr) */ | |
147 | ||
749f175a | 148 | /*@only@*/ /*@notnull@*/ static constraintExpr removeZero (/*@only@*/ /*@returned@*/ constraintExpr expr) |
7c9c4a67 | 149 | { |
150 | constraintExpr expr1, expr2; | |
151 | ||
152 | constraintExpr temp; | |
153 | ||
154 | constraintExprBinaryOpKind op; | |
155 | ||
156 | constraintExprBinaryOpKind tempOp; | |
157 | ||
749f175a | 158 | llassert (expr != NULL); /* evans 2001-07-18 */ |
159 | ||
7c9c4a67 | 160 | if (!isZeroBinaryOp(expr) ) |
161 | return expr; | |
162 | ||
163 | ||
164 | expr1 = constraintExprData_binaryExprGetExpr1(expr->data); | |
165 | expr2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
166 | op = constraintExprData_binaryExprGetOp(expr->data); | |
167 | ||
7272a1c1 | 168 | llassert( constraintExpr_isBinaryExpr(expr2) ); |
169 | ||
7c9c4a67 | 170 | temp = constraintExprData_binaryExprGetExpr2 (expr2->data); |
171 | temp = constraintExpr_copy (temp); | |
172 | ||
173 | tempOp = constraintExprData_binaryExprGetOp (expr2->data); | |
174 | ||
0c91982e | 175 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 176 | op = tempOp; |
acfb6ad9 | 177 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 178 | { |
0c91982e | 179 | if (tempOp == BINARYOP_PLUS) |
acfb6ad9 | 180 | op = BINARYOP_MINUS; |
181 | else if (tempOp == BINARYOP_MINUS) | |
0c91982e | 182 | op = BINARYOP_PLUS; |
7c9c4a67 | 183 | else |
184 | BADEXIT; | |
185 | } | |
186 | else | |
187 | BADEXIT; | |
188 | ||
7c9c4a67 | 189 | expr->data = constraintExprData_binaryExprSetExpr2(expr->data, temp); |
190 | expr->data = constraintExprData_binaryExprSetOp(expr->data, op); | |
191 | ||
192 | return expr; | |
193 | } | |
194 | ||
3aaedf88 | 195 | |
749f175a | 196 | /*@only@*//*@notnull@*/ constraintExpr constraintExpr_propagateConstants (/*@only@*/ constraintExpr expr, |
3aaedf88 | 197 | /*@out@*/ bool * propagate, |
198 | /*@out@*/ int *literal) | |
199 | { | |
200 | constraintExpr expr1; | |
201 | constraintExpr expr2; | |
202 | bool propagate1, propagate2; | |
203 | int literal1, literal2; | |
d46ce6a4 | 204 | constraintExprBinaryOpKind op; |
3aaedf88 | 205 | |
206 | propagate1 = FALSE; | |
207 | propagate2 = FALSE; | |
208 | ||
209 | literal1 = 0; | |
210 | literal2 = 0; | |
211 | ||
212 | *propagate = FALSE; | |
213 | *literal = 0; | |
214 | ||
a779b61e | 215 | |
dc92450f | 216 | llassert (expr != NULL); |
3aaedf88 | 217 | |
b7b694d6 | 218 | /* we simplify unaryExpr elsewhere */ |
d46ce6a4 | 219 | if (expr->kind != binaryexpr) |
3aaedf88 | 220 | return expr; |
221 | ||
d46ce6a4 | 222 | op = constraintExprData_binaryExprGetOp (expr->data); |
3aaedf88 | 223 | |
bb7c2085 | 224 | DPRINTF((message("constraintExpr_propagateConstants: binaryexpr: %s", constraintExpr_unparse(expr) ) ) ); |
7c9c4a67 | 225 | |
226 | expr = removeZero(expr); | |
3aaedf88 | 227 | |
228 | expr1 = constraintExprData_binaryExprGetExpr1(expr->data); | |
229 | expr2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
230 | ||
d46ce6a4 | 231 | expr1 = constraintExpr_copy(expr1); |
232 | expr2 = constraintExpr_copy(expr2); | |
233 | ||
3aaedf88 | 234 | expr1 = constraintExpr_propagateConstants (expr1, &propagate1, &literal1); |
235 | expr2 = constraintExpr_propagateConstants (expr2, &propagate2, &literal2); | |
236 | ||
a779b61e | 237 | expr1 = removeZero(expr1); |
238 | expr2 = removeZero(expr2); | |
239 | ||
240 | ||
3aaedf88 | 241 | *propagate = propagate1 || propagate2; |
7c9c4a67 | 242 | |
0c91982e | 243 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 244 | *literal = literal1 + literal2; |
acfb6ad9 | 245 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 246 | *literal = literal1 - literal2; |
247 | else | |
248 | BADEXIT; | |
249 | ||
3aaedf88 | 250 | if ( constraintExpr_isLit (expr1) && constraintExpr_isLit (expr2) ) |
251 | { | |
b9904f57 | 252 | long t1, t2; |
3aaedf88 | 253 | t1 = constraintExpr_getValue (expr1); |
254 | t2 = constraintExpr_getValue (expr2); | |
7c9c4a67 | 255 | llassert(*propagate == FALSE); |
3aaedf88 | 256 | *propagate = FALSE; |
a8e557d3 | 257 | |
d46ce6a4 | 258 | constraintExpr_free (expr); |
259 | constraintExpr_free (expr1); | |
260 | constraintExpr_free (expr2); | |
261 | ||
0c91982e | 262 | if (op == BINARYOP_PLUS ) |
bb7c2085 | 263 | return (constraintExpr_makeIntLiteral ((t1+t2) )); |
acfb6ad9 | 264 | else if (op == BINARYOP_MINUS) |
bb7c2085 | 265 | return (constraintExpr_makeIntLiteral ((t1-t2) )); |
3aaedf88 | 266 | else |
d46ce6a4 | 267 | BADEXIT; |
3aaedf88 | 268 | } |
d46ce6a4 | 269 | |
270 | ||
3aaedf88 | 271 | if (constraintExpr_isLit (expr1) ) |
272 | { | |
3aaedf88 | 273 | *propagate = TRUE; |
d46ce6a4 | 274 | |
7c9c4a67 | 275 | *literal += constraintExpr_getValue (expr1); |
d46ce6a4 | 276 | |
0c91982e | 277 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 278 | { |
279 | constraintExpr_free(expr1); | |
280 | constraintExpr_free(expr); | |
281 | return expr2; | |
282 | } | |
acfb6ad9 | 283 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 284 | { |
a779b61e | 285 | |
7c9c4a67 | 286 | constraintExpr temp; |
287 | ||
288 | /* this is an ugly kludge to deal with not | |
289 | having a unary minus operation...*/ | |
a779b61e | 290 | |
7c9c4a67 | 291 | temp = constraintExpr_makeIntLiteral (0); |
292 | temp = constraintExpr_makeSubtractExpr (temp, expr2); | |
293 | ||
294 | constraintExpr_free(expr1); | |
295 | constraintExpr_free(expr); | |
0ec8d634 | 296 | |
297 | llassert (constraintExpr_isDefined(temp) ); | |
7c9c4a67 | 298 | return temp; |
299 | } | |
7272a1c1 | 300 | else |
301 | { | |
302 | BADBRANCH; /* evans 2001-07-18 */ | |
303 | } | |
3aaedf88 | 304 | } |
305 | ||
3aaedf88 | 306 | if (constraintExpr_isLit (expr2) ) |
307 | { | |
308 | *propagate = TRUE; | |
a8e557d3 | 309 | |
0c91982e | 310 | if ( op == BINARYOP_PLUS ) |
3aaedf88 | 311 | *literal += constraintExpr_getValue (expr2); |
acfb6ad9 | 312 | else if (op == BINARYOP_MINUS) |
3aaedf88 | 313 | *literal -= constraintExpr_getValue (expr2); |
7c9c4a67 | 314 | else |
315 | BADEXIT; | |
316 | ||
d46ce6a4 | 317 | |
318 | constraintExpr_free(expr2); | |
319 | constraintExpr_free(expr); | |
3aaedf88 | 320 | return expr1; |
321 | } | |
3aaedf88 | 322 | |
bb7c2085 | 323 | DPRINTF((message("constraintExpr_propagateConstants returning: %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 324 | |
d46ce6a4 | 325 | expr->data = constraintExprData_binaryExprSetExpr1 (expr->data, expr1); |
326 | expr->data = constraintExprData_binaryExprSetExpr2 (expr->data, expr2); | |
327 | ||
7c9c4a67 | 328 | expr = removeZero(expr); |
3aaedf88 | 329 | return expr; |
330 | } | |
331 | ||
749f175a | 332 | /*@notnull@*/ /*@only@*/ static constraintExpr constraintExpr_combineConstants (/*@only@*/ constraintExpr expr ) /*@modifies expr@*/ |
3aaedf88 | 333 | { |
334 | bool propagate; | |
335 | int literal; | |
336 | ||
bb7c2085 | 337 | DPRINTF ((message ("Before combine %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 338 | expr = constraintExpr_propagateConstants (expr, &propagate, &literal); |
339 | ||
340 | ||
341 | if (propagate) | |
342 | { | |
343 | constraintExpr ret; | |
344 | ||
345 | if (literal != 0) | |
346 | { | |
347 | ret = constraintExpr_makeBinaryOpConstraintExprIntLiteral (expr, literal); | |
348 | expr = ret; | |
349 | } | |
350 | } | |
bb7c2085 | 351 | DPRINTF ((message ("After combine %s", constraintExpr_unparse(expr) ) ) ); |
0ec8d634 | 352 | |
353 | llassert(constraintExpr_isDefined(expr) ); | |
354 | return expr; | |
3aaedf88 | 355 | } |
c3e695ff | 356 | |
dc92450f | 357 | /*@special@*/ |
abd7f895 | 358 | static /*@notnull@*/ constraintExpr constraintExpr_alloc (void) /*@post:isnull result->data@*/ |
3aaedf88 | 359 | { |
360 | constraintExpr ret; | |
361 | ret = dmalloc (sizeof (*ret) ); | |
362 | ret->kind = term; | |
363 | ret->data = NULL; | |
86d93ed3 | 364 | ret->ct = FALSE; |
365 | ret->origType = ctype_undefined; | |
3aaedf88 | 366 | return ret; |
367 | } | |
368 | ||
4ab867d6 | 369 | /*@only@*/ static constraintExprData copyExprData (/*@observer@*/ constraintExprData data, constraintExprKind kind) |
c3e695ff | 370 | { |
371 | constraintExprData ret; | |
372 | llassert(constraintExprData_isDefined(data)); | |
373 | ||
374 | switch (kind) | |
375 | { | |
376 | case binaryexpr: | |
377 | ret = constraintExprData_copyBinaryExpr(data); | |
378 | break; | |
379 | case unaryExpr: | |
380 | ret = constraintExprData_copyUnaryExpr(data); | |
381 | break; | |
382 | case term: | |
383 | ret = constraintExprData_copyTerm(data); | |
384 | break; | |
385 | default: | |
386 | BADEXIT; | |
387 | } | |
388 | return ret; | |
389 | } | |
3aaedf88 | 390 | |
391 | constraintExpr constraintExpr_copy (constraintExpr expr) | |
392 | { | |
393 | constraintExpr ret; | |
abd7f895 | 394 | ret = constraintExpr_alloc (); |
749f175a | 395 | |
396 | ||
397 | /*drl 03/02/2003 this shouldn't be used to copy a null | |
398 | expression but handle things cleanly if it is*/ | |
399 | llassert (!constraintExpr_isUndefined(expr) ); | |
400 | ||
401 | if (constraintExpr_isUndefined(expr) ) | |
402 | { | |
403 | return constraintExpr_undefined; | |
404 | } | |
405 | ||
3aaedf88 | 406 | ret->kind = expr->kind; |
c3e695ff | 407 | |
408 | ret->data = copyExprData (expr->data, expr->kind); | |
86d93ed3 | 409 | ret->ct = expr->ct; |
410 | ret->origType = expr->origType; | |
3aaedf88 | 411 | return ret; |
412 | } | |
413 | ||
414 | ||
28bf4b0b | 415 | /*@only@*/ static constraintExpr oldconstraintExpr_makeTermExprNode ( /*@dependent@*/ exprNode e) |
3aaedf88 | 416 | { |
417 | constraintExpr ret; | |
418 | constraintTerm t; | |
419 | ret = constraintExpr_alloc(); | |
420 | ret->kind = term; | |
421 | ret->data = dmalloc (sizeof *(ret->data) ); | |
422 | t = constraintTerm_makeExprNode (e); | |
423 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 424 | ret->ct = FALSE; |
425 | ret->origType = ctype_undefined; | |
426 | ||
3aaedf88 | 427 | return ret; |
428 | } | |
429 | ||
0ec8d634 | 430 | /*@access exprNode@*/ |
28bf4b0b | 431 | constraintExpr constraintExpr_makeExprNode (exprNode e) |
3aaedf88 | 432 | { |
433 | sRef s; | |
434 | constraintExpr ret, ce1, ce2; | |
435 | exprData data; | |
436 | exprNode t, t1, t2; | |
437 | lltok tok; | |
438 | ||
dc92450f | 439 | llassert (e != NULL); |
3aaedf88 | 440 | |
441 | data = e->edata; | |
442 | ||
443 | switch (e->kind) | |
444 | { | |
445 | case XPR_SIZEOF: | |
446 | t = exprData_getSingle (data); | |
f96fe483 | 447 | while (exprNode_isInParens (t) ) |
448 | { | |
449 | t = exprData_getUopNode (t->edata); | |
450 | } | |
3aaedf88 | 451 | s = exprNode_getSref (t); |
452 | if (sRef_isFixedArray(s) ) | |
453 | { | |
454 | int size; | |
455 | ||
dc92450f | 456 | size = (int) sRef_getArraySize(s); |
3aaedf88 | 457 | ret = constraintExpr_makeIntLiteral (size); |
458 | } | |
e5081f8c | 459 | else if (exprNode_isStringLiteral (t)) |
f96fe483 | 460 | { |
e5081f8c | 461 | cstring str = multiVal_forceString (exprNode_getValue(t)); |
462 | ret = constraintExpr_makeIntLiteral (size_toLong (cstring_length (str) + 1)); | |
f96fe483 | 463 | } |
3aaedf88 | 464 | else |
465 | { | |
c3e695ff | 466 | DPRINTF ((message ("could not determine the size of %s", exprNode_unparse (e) ) ) ); |
3aaedf88 | 467 | ret = oldconstraintExpr_makeTermExprNode (e); |
468 | } | |
469 | break; | |
470 | ||
471 | case XPR_OP: | |
c3e695ff | 472 | DPRINTF ((message ("Examining operation %s", exprNode_unparse (e) ) ) ); |
3aaedf88 | 473 | t1 = exprData_getOpA (data); |
474 | t2 = exprData_getOpB (data); | |
475 | tok = exprData_getOpTok (data); | |
476 | ||
477 | if (lltok_isPlus_Op (tok) || lltok_isMinus_Op (tok) ) | |
478 | { | |
479 | ce1 = constraintExpr_makeExprNode (t1); | |
480 | ce2 = constraintExpr_makeExprNode (t2); | |
481 | ret = constraintExpr_parseMakeBinaryOp (ce1, tok, ce2); | |
482 | } | |
86d93ed3 | 483 | |
c757ee29 | 484 | |
485 | /* define this block to activate the cheesy heuristic | |
486 | for handling sizeof expressions*/ | |
487 | #if 0 | |
488 | ||
86d93ed3 | 489 | |
c757ee29 | 490 | /* |
7edb30e6 | 491 | drl 8-11-001 |
492 | ||
493 | We handle expressions containing sizeof with the rule | |
494 | (sizeof type ) * Expr = Expr | |
495 | ||
496 | This is the total wronge way to do this but... | |
497 | it may be better than nothing | |
c757ee29 | 498 | */ |
86d93ed3 | 499 | |
500 | ||
501 | ||
7edb30e6 | 502 | else if (lltok_isMult(tok) ) |
3aaedf88 | 503 | { |
7edb30e6 | 504 | if ((t1->kind == XPR_SIZEOF) || (t1->kind == XPR_SIZEOFT) ) |
505 | { | |
506 | ret = constraintExpr_makeExprNode(t2); | |
507 | } | |
508 | else if ((t2->kind == XPR_SIZEOF) || (t2->kind == XPR_SIZEOFT) ) | |
509 | { | |
510 | ret = constraintExpr_makeExprNode(t1); | |
86d93ed3 | 511 | } |
7edb30e6 | 512 | else |
513 | { | |
514 | ret = oldconstraintExpr_makeTermExprNode (e); | |
515 | } | |
3aaedf88 | 516 | } |
c757ee29 | 517 | #endif |
518 | ||
7edb30e6 | 519 | else |
520 | ret = oldconstraintExpr_makeTermExprNode (e); | |
521 | ||
3aaedf88 | 522 | break; |
523 | case XPR_PARENS: | |
524 | t = exprData_getUopNode (data); | |
525 | ret = constraintExpr_makeExprNode (t); | |
526 | break; | |
527 | ||
528 | case XPR_PREOP: | |
529 | t = exprData_getUopNode (data); | |
530 | tok = exprData_getUopTok (data); | |
16c024b5 | 531 | if (lltok_isIncOp (tok)) |
3aaedf88 | 532 | { |
533 | constraintExpr temp; | |
534 | temp = constraintExpr_makeExprNode(t); | |
535 | ret = constraintExpr_makeIncConstraintExpr(temp); | |
536 | } | |
16c024b5 | 537 | else if (lltok_isDecOp (tok)) |
3aaedf88 | 538 | { |
539 | constraintExpr temp; | |
540 | temp = constraintExpr_makeExprNode(t); | |
541 | ret = constraintExpr_makeDecConstraintExpr(temp); | |
542 | } | |
543 | else | |
544 | ret = oldconstraintExpr_makeTermExprNode (e); | |
545 | break; | |
546 | ||
547 | case XPR_POSTOP: | |
548 | t = exprData_getUopNode (data); | |
549 | ret = constraintExpr_makeExprNode (t); | |
550 | break; | |
470b7798 | 551 | case XPR_CAST: |
552 | t = exprData_getCastNode (data); | |
553 | ret = constraintExpr_makeExprNode (t); | |
554 | break; | |
555 | case XPR_COMMA: | |
556 | t = exprData_getPairA(data); | |
c3e695ff | 557 | ret = constraintExpr_makeExprNode(t); |
c3e695ff | 558 | break; |
3aaedf88 | 559 | default: |
560 | ret = oldconstraintExpr_makeTermExprNode (e); | |
561 | ||
562 | } | |
563 | return ret; | |
564 | } | |
565 | ||
0ec8d634 | 566 | /*@noaccess exprNode@*/ |
567 | ||
568 | ||
569 | ||
570 | ||
b7b694d6 | 571 | /*@only@*/ constraintExpr constraintExpr_makeTermExprNode (/*@exposed@*/ exprNode e) |
3aaedf88 | 572 | { |
b7b694d6 | 573 | return oldconstraintExpr_makeTermExprNode(e); |
3aaedf88 | 574 | } |
575 | ||
28bf4b0b | 576 | static constraintExpr constraintExpr_makeTerm (/*@only@*/ constraintTerm t) |
920a3797 | 577 | { |
578 | constraintExpr ret; | |
579 | ||
580 | ret = constraintExpr_alloc(); | |
581 | ret->kind = term; | |
582 | ret->data = dmalloc (sizeof *(ret->data) ); | |
a779b61e | 583 | ret->data->term = NULL; |
920a3797 | 584 | ret->data = constraintExprData_termSetTerm (ret->data, t); |
86d93ed3 | 585 | ret->ct = FALSE; |
586 | ret->origType = ctype_undefined; | |
920a3797 | 587 | |
588 | return ret; | |
589 | } | |
3aaedf88 | 590 | |
28bf4b0b | 591 | constraintExpr constraintExpr_makeTermsRef (/*@temp@*/ sRef s) |
3aaedf88 | 592 | { |
593 | constraintExpr ret; | |
594 | constraintTerm t; | |
595 | ret = constraintExpr_alloc(); | |
596 | ret->kind = term; | |
597 | ret->data = dmalloc (sizeof *(ret->data) ); | |
598 | t = constraintTerm_makesRef (s); | |
599 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 600 | |
601 | ret->ct = FALSE; | |
602 | ret->origType = ctype_undefined; | |
603 | ||
3aaedf88 | 604 | return ret; |
605 | } | |
606 | ||
749f175a | 607 | /*@special@*/ /*@notnull@*/ static constraintExpr makeUnaryOpGeneric (void) /*@allocates result->data@*/ /*@defines result->kind@*/ |
3aaedf88 | 608 | { |
609 | constraintExpr ret; | |
610 | ret = constraintExpr_alloc(); | |
611 | ret->kind = unaryExpr; | |
612 | ret->data = dmalloc ( sizeof *(ret->data) ); | |
a779b61e | 613 | ret->data->unaryOp.expr = constraintExpr_undefined; |
3aaedf88 | 614 | return ret; |
615 | } | |
616 | ||
749f175a | 617 | /*@notnull@*/ /*@only@*/ static constraintExpr constraintExpr_makeUnaryOpConstraintExpr (/*@only@*/ constraintExpr cexpr) |
3aaedf88 | 618 | { |
619 | constraintExpr ret; | |
920a3797 | 620 | ret = makeUnaryOpGeneric(); |
a8e557d3 | 621 | |
622 | /*@-uniondef@*/ | |
623 | /*@-compdef@*/ | |
b7b694d6 | 624 | ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr); |
625 | ret->data = constraintExprData_unaryExprSetOp (ret->data, UNARYOP_UNDEFINED); | |
626 | ||
3aaedf88 | 627 | return ret; |
b7b694d6 | 628 | |
a8e557d3 | 629 | /*@=compdef@*/ |
c3e695ff | 630 | /*@=uniondef@*/ |
3aaedf88 | 631 | } |
632 | ||
920a3797 | 633 | |
749f175a | 634 | /*@only@*/ /*@notnull@*/static constraintExpr constraintExpr_makeUnaryOp (/*@only@*/ constraintExpr cexpr, constraintExprUnaryOpKind Op ) |
920a3797 | 635 | { |
636 | constraintExpr ret; | |
637 | ret = makeUnaryOpGeneric(); | |
638 | ||
639 | ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr); | |
640 | ret->data = constraintExprData_unaryExprSetOp (ret->data, Op); | |
641 | ||
86d93ed3 | 642 | ret->ct = FALSE; |
643 | ret->origType = ctype_undefined; | |
644 | ||
920a3797 | 645 | return ret; |
646 | } | |
647 | ||
749f175a | 648 | /*@only@*/ /*@notnull@*/ |
4ab867d6 | 649 | static constraintExpr constraintExpr_makeUnaryOpExprNode (/*@exposed@*/ exprNode expr) |
3aaedf88 | 650 | { |
651 | constraintExpr ret; | |
652 | constraintExpr sub; | |
653 | sub = constraintExpr_makeExprNode (expr); | |
654 | ret = constraintExpr_makeUnaryOpConstraintExpr(sub); | |
d46ce6a4 | 655 | |
3aaedf88 | 656 | return ret; |
657 | } | |
658 | ||
749f175a | 659 | /*@only@*/ /*@notnull@*/ |
660 | static constraintExpr constraintExpr_makeMaxSetConstraintExpr (/*@only@*/ constraintExpr c) | |
661 | { | |
662 | constraintExpr ret; | |
663 | ret = constraintExpr_makeUnaryOp (c, MAXSET); | |
664 | return ret; | |
665 | } | |
3aaedf88 | 666 | |
667 | ||
749f175a | 668 | /*@only@*/ /*@notnull@*/ |
28bf4b0b | 669 | static constraintExpr constraintExpr_makeSRefUnaryOp (/*@temp@*/ /*@observer@*/ sRef s, constraintExprUnaryOpKind op) |
3aaedf88 | 670 | { |
671 | constraintExpr ret; | |
672 | constraintExpr t; | |
673 | ||
674 | t = constraintExpr_makeTermsRef (s); | |
675 | ret = constraintExpr_makeUnaryOpConstraintExpr (t); | |
676 | ret->data = constraintExprData_unaryExprSetOp (ret->data, op); | |
d46ce6a4 | 677 | |
3aaedf88 | 678 | return ret; |
679 | } | |
680 | ||
bb25bea6 | 681 | /*@only@*/ |
28bf4b0b | 682 | constraintExpr constraintExpr_makeSRefMaxRead( sRef s) |
470b7798 | 683 | { |
684 | return (constraintExpr_makeSRefUnaryOp (s, MAXREAD) ); | |
685 | } | |
686 | ||
bb25bea6 | 687 | /*@only@*/ |
28bf4b0b | 688 | constraintExpr constraintExpr_makeSRefMaxset ( sRef s) |
3aaedf88 | 689 | { |
690 | return (constraintExpr_makeSRefUnaryOp (s, MAXSET) ); | |
691 | } | |
692 | ||
bb25bea6 | 693 | /*@only@*/ |
3aaedf88 | 694 | constraintExpr constraintExpr_parseMakeUnaryOp (lltok op, constraintExpr cexpr) |
695 | { | |
696 | constraintExpr ret; | |
697 | ret = constraintExpr_makeUnaryOpConstraintExpr ( cexpr); | |
698 | ||
80489f0a | 699 | switch (lltok_getTok (op)) |
3aaedf88 | 700 | { |
701 | case QMAXSET: | |
702 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXSET); | |
703 | break; | |
704 | case QMAXREAD: | |
705 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD); | |
706 | break; | |
707 | default: | |
2f2892c2 | 708 | llfatalbug (message ("Unhandled operation in constraint: %s", lltok_unparse (op))); |
3aaedf88 | 709 | } |
710 | return ret; | |
711 | } | |
712 | ||
bb25bea6 | 713 | /*@only@*/ |
4ab867d6 | 714 | constraintExpr constraintExpr_makeMaxSetExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 715 | { |
716 | constraintExpr ret; | |
717 | ret = constraintExpr_makeExprNode (expr); | |
718 | ||
719 | ret = constraintExpr_makeMaxSetConstraintExpr (ret); | |
720 | ||
dc92450f | 721 | llassert (ret != NULL); |
3aaedf88 | 722 | return ret; |
723 | } | |
724 | ||
bb25bea6 | 725 | /*@only@*/ |
3aaedf88 | 726 | constraintExpr constraintExpr_makeMaxReadExpr (exprNode expr) |
727 | { | |
728 | constraintExpr ret; | |
729 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
730 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD); | |
731 | return ret; | |
732 | } | |
733 | ||
15b3d2b2 | 734 | # if 0 |
bb25bea6 | 735 | /*@only@*/ |
28bf4b0b | 736 | /*@unused@*/ static constraintExpr constraintExpr_makeMinSetExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 737 | { |
738 | constraintExpr ret; | |
739 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
740 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MINSET); | |
741 | return ret; | |
742 | } | |
743 | ||
bb25bea6 | 744 | /*@only@*/ |
28bf4b0b | 745 | /*@unused@*/ static constraintExpr constraintExpr_makeMinReadExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 746 | { |
747 | constraintExpr ret; | |
748 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
749 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MINREAD); | |
750 | return ret; | |
751 | } | |
15b3d2b2 | 752 | # endif |
3aaedf88 | 753 | |
bb25bea6 | 754 | /*@only@*/ |
4ab867d6 | 755 | constraintExpr constraintExpr_makeValueExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 756 | { |
757 | constraintExpr ret; | |
758 | ret = constraintExpr_makeExprNode (expr); | |
759 | return ret; | |
760 | } | |
761 | ||
749f175a | 762 | /*@only@*/ /*@notnull@*/ |
b9904f57 | 763 | constraintExpr constraintExpr_makeIntLiteral (long i) |
3aaedf88 | 764 | { |
765 | constraintExpr ret; | |
766 | constraintTerm t; | |
767 | ret = constraintExpr_alloc(); | |
768 | ret->kind = term; | |
769 | ret->data = dmalloc (sizeof *(ret->data) ); | |
770 | t = constraintTerm_makeIntLiteral (i); | |
771 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 772 | |
773 | ret->ct = FALSE; | |
774 | ret->origType = ctype_undefined; | |
775 | ||
3aaedf88 | 776 | return ret; |
777 | } | |
778 | ||
c3e695ff | 779 | /* |
3aaedf88 | 780 | constraintExpr constraintExpr_makeValueInt (int i) |
781 | { | |
782 | return constraintExpr_makeIntLiteral (i); | |
783 | } | |
c3e695ff | 784 | */ |
3aaedf88 | 785 | |
749f175a | 786 | /*@only@*/ /*@notnull@*/ |
28bf4b0b | 787 | /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void) |
788 | /*@allocates result->data @*/ /*@sets result->kind @*/ | |
3aaedf88 | 789 | { |
790 | constraintExpr ret; | |
791 | ret = constraintExpr_alloc(); | |
792 | ret->kind = binaryexpr; | |
793 | ret->data = dmalloc ( sizeof *(ret->data) ); | |
a779b61e | 794 | |
795 | ret->data->binaryOp.expr1 = constraintExpr_undefined; | |
796 | ret->data->binaryOp.expr2 = constraintExpr_undefined; | |
797 | ||
3aaedf88 | 798 | return ret; |
799 | } | |
800 | ||
801 | ||
749f175a | 802 | static /*@notnull@*/ /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExpr (/*@only@*/constraintExpr expr1, /*@only@*/ constraintExpr expr2) |
3aaedf88 | 803 | |
804 | { | |
805 | constraintExpr ret; | |
d46ce6a4 | 806 | |
3aaedf88 | 807 | ret = constraintExpr_makeBinaryOp(); |
808 | ret->data = constraintExprData_binaryExprSetExpr1 (ret->data, expr1); | |
809 | ret->data = constraintExprData_binaryExprSetExpr2 (ret->data, expr2); | |
84c9ffbf | 810 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED); |
86d93ed3 | 811 | |
812 | ret->ct = FALSE; | |
813 | ret->origType = ctype_undefined; | |
814 | ||
3aaedf88 | 815 | return ret; |
816 | } | |
817 | ||
bb25bea6 | 818 | /*@only@*/ |
d46ce6a4 | 819 | constraintExpr constraintExpr_parseMakeBinaryOp (/*@only@*/ constraintExpr expr1, lltok op,/*@only@*/ constraintExpr expr2) |
3aaedf88 | 820 | { |
821 | constraintExpr ret; | |
822 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2); | |
80489f0a | 823 | |
824 | if (lltok_getTok (op) == TPLUS) | |
825 | { | |
826 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); | |
827 | } | |
828 | else if (lltok_getTok (op) == TMINUS) | |
829 | { | |
830 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS); | |
831 | } | |
832 | else | |
833 | { | |
834 | llassert (FALSE); | |
835 | } | |
836 | ||
3aaedf88 | 837 | return ret; |
838 | } | |
839 | ||
15b3d2b2 | 840 | # if 0 |
bb25bea6 | 841 | /*@only@*/ |
28bf4b0b | 842 | /*@unused@*/ static constraintExpr constraintExpr_makeBinaryOpExprNode (/*@exposed@*/ exprNode expr1, /*@exposed@*/ exprNode expr2) |
3aaedf88 | 843 | { |
844 | constraintExpr ret; | |
845 | constraintExpr sub1, sub2; | |
846 | sub1 = constraintExpr_makeTermExprNode (expr1); | |
847 | sub2 = constraintExpr_makeTermExprNode (expr2); | |
848 | ret = constraintExpr_makeBinaryOpConstraintExpr(sub1, sub2); | |
849 | return ret; | |
850 | } | |
15b3d2b2 | 851 | # endif |
3aaedf88 | 852 | |
749f175a | 853 | static /*@notnull@*/ /*@only@*/ |
d46ce6a4 | 854 | constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/ constraintExpr expr, int literal) |
3aaedf88 | 855 | { |
856 | constraintExpr ret; | |
857 | constraintExpr constExpr; | |
858 | ||
859 | constExpr = constraintExpr_makeIntLiteral (literal); | |
860 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, constExpr); | |
0c91982e | 861 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 862 | return ret; |
863 | } | |
864 | ||
bb25bea6 | 865 | /*@only@*/ |
d46ce6a4 | 866 | constraintExpr constraintExpr_makeDecConstraintExpr (/*@only@*/constraintExpr expr) |
3aaedf88 | 867 | { |
868 | constraintExpr ret; | |
869 | constraintExpr inc; | |
870 | ||
871 | inc = constraintExpr_makeIntLiteral (1); | |
872 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc); | |
acfb6ad9 | 873 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS); |
3aaedf88 | 874 | return ret; |
875 | } | |
876 | ||
2934b455 | 877 | |
878 | /*@only@*/ constraintExpr constraintExpr_makeSubtractExpr (/*@only@*/ constraintExpr expr, /*@only@*/ constraintExpr addent) | |
879 | { | |
28bf4b0b | 880 | constraintExpr ret; |
2934b455 | 881 | |
bb7c2085 | 882 | DPRINTF ((message ("Making subtract expression") ) ); |
2934b455 | 883 | |
28bf4b0b | 884 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent); |
acfb6ad9 | 885 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_MINUS); |
28bf4b0b | 886 | return ret; |
2934b455 | 887 | } |
888 | ||
bb25bea6 | 889 | /*@only@*/ |
2934b455 | 890 | constraintExpr constraintExpr_makeAddExpr (/*@only@*/ |
bb25bea6 | 891 | constraintExpr expr, /*@only@*/ |
2934b455 | 892 | constraintExpr addent) |
3aaedf88 | 893 | { |
28bf4b0b | 894 | constraintExpr ret; |
3aaedf88 | 895 | |
bb7c2085 | 896 | DPRINTF ((message ("Doing addTerm simplification") ) ); |
3aaedf88 | 897 | |
28bf4b0b | 898 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent); |
0c91982e | 899 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_PLUS); |
28bf4b0b | 900 | return ret; |
3aaedf88 | 901 | } |
902 | ||
2934b455 | 903 | |
bb25bea6 | 904 | /*@only@*/ |
d46ce6a4 | 905 | constraintExpr constraintExpr_makeIncConstraintExpr (/*@only@*/ constraintExpr expr) |
3aaedf88 | 906 | { |
907 | constraintExpr ret; | |
908 | constraintExpr inc; | |
909 | ||
910 | inc = constraintExpr_makeIntLiteral (1); | |
911 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc); | |
0c91982e | 912 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 913 | return ret; |
914 | } | |
915 | ||
bb25bea6 | 916 | /*@only@*/ |
917 | static cstring constraintExprUnaryOpKind_print (constraintExprUnaryOpKind op) | |
3aaedf88 | 918 | { |
919 | switch (op) | |
920 | { | |
921 | case MAXSET: | |
03d670b6 | 922 | return message("maxSet"); |
3aaedf88 | 923 | case MINSET: |
03d670b6 | 924 | return message("minSet"); |
3aaedf88 | 925 | case MAXREAD: |
03d670b6 | 926 | return message("maxRead"); |
3aaedf88 | 927 | case MINREAD: |
03d670b6 | 928 | return message("minRead"); |
3aaedf88 | 929 | default: |
930 | llassert(FALSE); | |
931 | return message ("<(Unary OP OTHER>"); | |
932 | } | |
933 | } | |
934 | ||
935 | ||
bb25bea6 | 936 | /*@only@*/ |
937 | static cstring constraintExprBinaryOpKind_print (constraintExprBinaryOpKind op) | |
3aaedf88 | 938 | { |
939 | ||
940 | switch (op) | |
941 | { | |
0c91982e | 942 | case BINARYOP_PLUS: |
3aaedf88 | 943 | return message("+"); |
acfb6ad9 | 944 | case BINARYOP_MINUS: |
3aaedf88 | 945 | return message("-"); |
dc92450f | 946 | |
947 | default: | |
948 | llassert(FALSE); | |
949 | return message ("<binary OP Unknown>"); | |
3aaedf88 | 950 | } |
3aaedf88 | 951 | } |
952 | ||
953 | bool constraintExpr_similar (constraintExpr expr1, constraintExpr expr2) | |
954 | { | |
955 | constraintExprKind kind; | |
956 | ||
957 | llassert (expr1 != NULL); | |
958 | llassert (expr2 != NULL); | |
959 | if (expr1->kind != expr2->kind) | |
960 | return FALSE; | |
961 | ||
962 | kind = expr1->kind; | |
963 | ||
964 | switch (kind) | |
965 | { | |
966 | case term: | |
967 | return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data), | |
968 | constraintExprData_termGetTerm(expr2->data) ); | |
c3e695ff | 969 | /*@notreached@*/ break; |
3aaedf88 | 970 | |
971 | case unaryExpr: | |
972 | if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) ) | |
973 | return FALSE; | |
974 | ||
975 | return (constraintExpr_similar ( | |
976 | constraintExprData_unaryExprGetExpr (expr1->data), | |
977 | constraintExprData_unaryExprGetExpr (expr2->data) | |
978 | )); | |
979 | ||
980 | case binaryexpr: | |
981 | if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) ) | |
982 | return FALSE; | |
983 | ||
984 | if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr1 (expr1->data), | |
985 | constraintExprData_binaryExprGetExpr1 (expr2->data)) ) | |
986 | return FALSE; | |
987 | ||
988 | if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr2 (expr1->data), | |
989 | constraintExprData_binaryExprGetExpr2 (expr2->data)) ) | |
990 | return FALSE; | |
991 | else | |
992 | return TRUE; | |
993 | /*@notreached@*/ | |
994 | break; | |
995 | ||
996 | default: | |
997 | llassert(FALSE); | |
998 | return FALSE; | |
999 | } | |
1000 | /*@notreached@*/ | |
1001 | return FALSE; | |
1002 | } | |
1003 | ||
1004 | bool constraintExpr_same (constraintExpr expr1, constraintExpr expr2) | |
1005 | { | |
1006 | constraintExprKind kind; | |
1007 | ||
1008 | llassert (expr1 != NULL); | |
1009 | llassert (expr2 != NULL); | |
1010 | if (expr1->kind != expr2->kind) | |
1011 | return FALSE; | |
1012 | ||
1013 | kind = expr1->kind; | |
1014 | ||
1015 | switch (kind) | |
1016 | { | |
1017 | case term: | |
1018 | return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data), | |
1019 | constraintExprData_termGetTerm(expr2->data) ); | |
dc92450f | 1020 | /*@notreached@*/ break; |
3aaedf88 | 1021 | |
1022 | case unaryExpr: | |
1023 | if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) ) | |
1024 | return FALSE; | |
1025 | ||
1026 | return (constraintExpr_same ( | |
1027 | constraintExprData_unaryExprGetExpr (expr1->data), | |
1028 | constraintExprData_unaryExprGetExpr (expr2->data) | |
1029 | )); | |
1030 | ||
1031 | ||
1032 | case binaryexpr: | |
1033 | if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) ) | |
1034 | return FALSE; | |
1035 | ||
1036 | if (! constraintExpr_same (constraintExprData_binaryExprGetExpr1 (expr1->data), | |
1037 | constraintExprData_binaryExprGetExpr1 (expr2->data)) ) | |
1038 | return FALSE; | |
1039 | ||
1040 | if (! constraintExpr_same (constraintExprData_binaryExprGetExpr2 (expr1->data), | |
1041 | constraintExprData_binaryExprGetExpr2 (expr2->data)) ) | |
1042 | return FALSE; | |
1043 | else | |
1044 | return TRUE; | |
dc92450f | 1045 | /*@notreached@*/ break; |
3aaedf88 | 1046 | |
1047 | default: | |
1048 | llassert(FALSE); | |
1049 | return FALSE; | |
1050 | } | |
1051 | ||
1052 | /*@notreached@*/ | |
1053 | BADEXIT; | |
1054 | } | |
1055 | ||
9a48d98c | 1056 | bool |
1057 | constraintExpr_search (/*@observer@*/ constraintExpr c, | |
1058 | /*@observer@*/ constraintExpr old) | |
3aaedf88 | 1059 | { |
1060 | bool ret = FALSE; | |
1061 | constraintExprKind kind; | |
1062 | constraintExpr temp; | |
1063 | ||
9a48d98c | 1064 | if (constraintExpr_similar (c, old)) |
3aaedf88 | 1065 | { |
9a48d98c | 1066 | DPRINTF (("Found %q", constraintExpr_unparse (old))); |
3aaedf88 | 1067 | return TRUE; |
1068 | } | |
1069 | ||
749f175a | 1070 | llassert (constraintExpr_isDefined (c) && constraintExpr_isDefined(old) ); |
1071 | ||
1072 | if ( !(constraintExpr_isDefined (c) && constraintExpr_isDefined(old) ) ) | |
1073 | return FALSE; | |
1074 | ||
3aaedf88 | 1075 | kind = c->kind; |
1076 | ||
1077 | switch (kind) | |
1078 | { | |
1079 | case term: | |
1080 | break; | |
1081 | case unaryExpr: | |
1082 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
1083 | ret = ret || constraintExpr_search (temp, old); | |
1084 | break; | |
1085 | case binaryexpr: | |
1086 | ||
1087 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
1088 | ret = ret || constraintExpr_search(temp, old); | |
1089 | ||
1090 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
1091 | ret = ret || constraintExpr_search(temp, old); | |
1092 | break; | |
1093 | default: | |
1094 | llassert(FALSE); | |
1095 | } | |
1096 | return ret; | |
1097 | ||
1098 | } | |
1099 | ||
1100 | ||
28bf4b0b | 1101 | /*@only@*/ constraintExpr constraintExpr_searchandreplace (/*@only@*/ /*@unique@*/ constraintExpr c, /*@temp@*/ constraintExpr old, /*@temp@*/ constraintExpr newExpr ) |
3aaedf88 | 1102 | { |
1103 | constraintExprKind kind; | |
1104 | constraintExpr temp; | |
86d93ed3 | 1105 | constraintExpr ret; |
749f175a | 1106 | |
1107 | llassert(constraintExpr_isDefined (newExpr) && (constraintExpr_isDefined (old) && constraintExpr_isDefined(c) ) ); | |
3aaedf88 | 1108 | |
1109 | if ( constraintExpr_similar (c, old) ) | |
1110 | { | |
86d93ed3 | 1111 | |
1112 | ctype newType, cType; | |
1113 | ||
749f175a | 1114 | |
1115 | ||
86d93ed3 | 1116 | |
1117 | ret = constraintExpr_copy (newExpr); | |
749f175a | 1118 | llassert(constraintExpr_isDefined(ret) ); |
1119 | /*drl if newExpr != NULL then ret will != NULL*/ | |
1120 | ||
470b7798 | 1121 | DPRINTF((message ("Replacing %s with %s", |
28bf4b0b | 1122 | constraintExpr_unparse(old), constraintExpr_unparse(newExpr) |
3aaedf88 | 1123 | ))); |
86d93ed3 | 1124 | |
1125 | if (constraintExpr_canGetCType(c) && constraintExpr_canGetCType(newExpr) ) | |
1126 | { | |
1127 | cType = constraintExpr_getCType(c); | |
1128 | newType = constraintExpr_getCType(newExpr); | |
1129 | ||
1130 | if (ctype_match(cType,newType) ) | |
1131 | { | |
1132 | DPRINTF(( message("constraintExpr_searchandreplace: replacing " | |
1133 | " %s with type %s with %s with type %s", | |
1134 | constraintExpr_print(c), ctype_unparse(cType), | |
1135 | constraintExpr_print(newExpr), ctype_unparse(newType) | |
1136 | ) | |
1137 | )); | |
1138 | ||
1139 | ret->ct = TRUE; | |
1140 | ret->origType = cType; | |
1141 | } | |
1142 | } | |
1143 | ||
1144 | if (constraintExpr_hasMaxSet(c) ) | |
1145 | { | |
1146 | if (constraintExpr_hasTypeChange(c)) | |
1147 | { | |
1148 | DPRINTF(( message("constraintExpr_searchandreplace: encountered " | |
1149 | "MaxSet with changed type %s ", | |
1150 | constraintExpr_print(c) ) | |
1151 | )); | |
1152 | ||
1153 | /*fix this with a conversation */ | |
1154 | ret = constraintExpr_adjustMaxSetForCast(ret, constraintExpr_getOrigType(c)); | |
1155 | } | |
1156 | } | |
bb25bea6 | 1157 | constraintExpr_free(c); |
86d93ed3 | 1158 | |
1159 | return ret; | |
3aaedf88 | 1160 | } |
1161 | ||
1162 | kind = c->kind; | |
1163 | ||
1164 | switch (kind) | |
1165 | { | |
1166 | case term: | |
1167 | break; | |
1168 | case unaryExpr: | |
1169 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1170 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1171 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1172 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); |
1173 | break; | |
1174 | case binaryexpr: | |
1175 | ||
1176 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
d46ce6a4 | 1177 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1178 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1179 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); |
1180 | ||
1181 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1182 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1183 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1184 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); |
1185 | break; | |
1186 | default: | |
1187 | llassert(FALSE); | |
1188 | } | |
1189 | return c; | |
3aaedf88 | 1190 | } |
1191 | ||
749f175a | 1192 | /*@notnull@*/ static constraintExpr constraintExpr_simplifyChildren (/*@returned@*/ /*@notnull@*/ constraintExpr c) |
3aaedf88 | 1193 | { |
1194 | constraintExprKind kind; | |
1195 | constraintExpr temp; | |
1196 | ||
1197 | kind = c->kind; | |
1198 | ||
1199 | switch (kind) | |
1200 | { | |
1201 | case term: | |
1202 | break; | |
1203 | case unaryExpr: | |
1204 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1205 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1206 | temp = constraintExpr_simplify (temp); |
1207 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); | |
1208 | break; | |
1209 | case binaryexpr: | |
c3e695ff | 1210 | DPRINTF((message("constraintExpr_simplfiyChildren: simplify binary expression: %s",constraintExpr_unparse(c) ) ) ); |
3aaedf88 | 1211 | temp = constraintExprData_binaryExprGetExpr1 (c->data); |
d46ce6a4 | 1212 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1213 | temp = constraintExpr_simplify (temp); |
1214 | ||
1215 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); | |
1216 | ||
1217 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1218 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1219 | temp = constraintExpr_simplify (temp); |
1220 | ||
1221 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); | |
1222 | break; | |
1223 | default: | |
1224 | llassert(FALSE); | |
1225 | } | |
1226 | return c; | |
1227 | ||
1228 | } | |
1229 | ||
1230 | ||
28bf4b0b | 1231 | constraintExpr constraintExpr_setFileloc (/*@returned@*/ constraintExpr c, fileloc loc) /*@modifies c @*/ |
3aaedf88 | 1232 | { |
1233 | constraintTerm t; | |
1234 | constraintExpr temp; | |
1235 | ||
dc92450f | 1236 | llassert(c != NULL); |
3aaedf88 | 1237 | |
1238 | switch (c->kind) | |
1239 | { | |
1240 | case term: | |
1241 | t = constraintExprData_termGetTerm (c->data); | |
d46ce6a4 | 1242 | t = constraintTerm_copy(t); |
3aaedf88 | 1243 | t = constraintTerm_setFileloc (t, loc); |
1244 | c->data = constraintExprData_termSetTerm (c->data, t); | |
1245 | break; | |
1246 | case binaryexpr: | |
1247 | ||
1248 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
d46ce6a4 | 1249 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1250 | temp = constraintExpr_setFileloc (temp, loc); |
1251 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); | |
1252 | ||
1253 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1254 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1255 | temp = constraintExpr_setFileloc (temp, loc); |
1256 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); | |
1257 | break; | |
1258 | case unaryExpr: | |
1259 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1260 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1261 | temp = constraintExpr_setFileloc (temp, loc); |
1262 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); | |
1263 | break; | |
1264 | } | |
1265 | return c; | |
1266 | } | |
1267 | ||
749f175a | 1268 | static /*@only@*/ constraintExpr constraintExpr_simplifybinaryExpr (/*@only@*/ /*@notnull@*/ constraintExpr c) |
3aaedf88 | 1269 | { |
1270 | constraintExpr e1, e2; | |
7c9c4a67 | 1271 | constraintExprBinaryOpKind op; |
1272 | ||
3aaedf88 | 1273 | e1 = constraintExprData_binaryExprGetExpr1 (c->data); |
1274 | e2 = constraintExprData_binaryExprGetExpr2 (c->data); | |
1275 | ||
1276 | if (constraintExpr_canGetValue (e1) && constraintExpr_canGetValue(e2) ) | |
1277 | { | |
b9904f57 | 1278 | long i; |
3aaedf88 | 1279 | |
1280 | i = constraintExpr_getValue(e1) + constraintExpr_getValue (e2); | |
d46ce6a4 | 1281 | constraintExpr_free(c); |
3aaedf88 | 1282 | c = constraintExpr_makeIntLiteral (i); |
3aaedf88 | 1283 | } |
7c9c4a67 | 1284 | else |
1285 | { | |
1286 | op = constraintExprData_binaryExprGetOp (c->data); | |
acfb6ad9 | 1287 | if (op == BINARYOP_MINUS) |
7c9c4a67 | 1288 | if (constraintExpr_similar(e1, e2) ) |
1289 | { | |
1290 | constraintExpr_free(c); | |
1291 | c = constraintExpr_makeIntLiteral (0); | |
1292 | } | |
1293 | } | |
1294 | ||
3aaedf88 | 1295 | return c; |
1296 | } | |
1297 | ||
bb25bea6 | 1298 | /* |
1299 | this thing takes the lexpr and expr of a constraint and modifies lexpr | |
1300 | and returns a (possiblly new) value for expr | |
1301 | */ | |
1302 | /* 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 */ | |
1303 | ||
1304 | /* the approach is a little Kludgy but seems to work. I should probably use something cleaner at some point ... */ | |
1305 | ||
1306 | ||
1307 | /*@only@*/ constraintExpr constraintExpr_solveBinaryExpr (constraintExpr lexpr, /*@only@*/ constraintExpr expr) | |
3aaedf88 | 1308 | { |
1309 | constraintExpr expr1, expr2; | |
1310 | constraintExprBinaryOpKind op; | |
749f175a | 1311 | |
1312 | llassert(constraintExpr_isDefined (lexpr) && constraintExpr_isDefined (expr) ); | |
3aaedf88 | 1313 | |
1314 | if (lexpr->kind != binaryexpr) | |
1315 | return expr; | |
1316 | ||
1317 | expr2 = constraintExprData_binaryExprGetExpr2 (lexpr->data); | |
1318 | expr1 = constraintExprData_binaryExprGetExpr1 (lexpr->data); | |
bb25bea6 | 1319 | |
3aaedf88 | 1320 | op = constraintExprData_binaryExprGetOp (lexpr->data); |
1321 | ||
bb25bea6 | 1322 | expr1 = constraintExpr_copy(expr1); |
1323 | expr2 = constraintExpr_copy(expr2); | |
749f175a | 1324 | |
1325 | llassert(constraintExpr_isDefined (expr1) && constraintExpr_isDefined (expr2) ); | |
1326 | ||
b7b694d6 | 1327 | /* drl possible problem : warning make sure this works */ |
1328 | ||
1329 | lexpr->kind = expr1->kind; | |
1330 | sfree (lexpr->data); | |
1331 | ||
1332 | lexpr->data = copyExprData (expr1->data, expr1->kind); | |
1333 | constraintExpr_free(expr1); | |
1334 | ||
0c91982e | 1335 | if (op == BINARYOP_PLUS) |
b7b694d6 | 1336 | expr = constraintExpr_makeSubtractExpr (expr, expr2); |
acfb6ad9 | 1337 | else if (op == BINARYOP_MINUS) |
b7b694d6 | 1338 | expr = constraintExpr_makeAddExpr (expr, expr2); |
1339 | else | |
1340 | BADEXIT; | |
1341 | ||
1342 | ||
1343 | return expr; | |
bb25bea6 | 1344 | |
c3e695ff | 1345 | /* |
1346 | #warning this needs to be checked | |
1347 | expr = constraintExpr_solveBinaryExpr (expr1, expr); | |
1348 | ||
1349 | expr = constraintExpr_solveBinaryExpr (expr2, expr); | |
1350 | return expr; | |
1351 | */ | |
3aaedf88 | 1352 | } |
1353 | ||
bb25bea6 | 1354 | static /*@only@*/ constraintExpr constraintExpr_simplifyunaryExpr (/*@only@*/ constraintExpr c) |
3aaedf88 | 1355 | { |
1356 | constraintExpr exp; | |
749f175a | 1357 | |
1358 | llassert(constraintExpr_isDefined (c) ); | |
3aaedf88 | 1359 | llassert (c->kind == unaryExpr); |
1360 | ||
d30bc0c7 | 1361 | DPRINTF ((message ("Doing constraintExpr_simplifyunaryExpr:%s", constraintExpr_unparse (c) ) ) ); |
3aaedf88 | 1362 | |
bb7c2085 | 1363 | if ((constraintExprData_unaryExprGetOp (c->data) != MAXSET) && |
3aaedf88 | 1364 | (constraintExprData_unaryExprGetOp (c->data) != MAXREAD) ) |
1365 | { | |
1366 | return c; | |
1367 | } | |
3aaedf88 | 1368 | |
1369 | exp = constraintExprData_unaryExprGetExpr (c->data); | |
a779b61e | 1370 | exp = constraintExpr_copy(exp); |
1371 | ||
749f175a | 1372 | llassert(constraintExpr_isDefined (exp) ); |
1373 | ||
3aaedf88 | 1374 | if (exp->kind == term) |
1375 | { | |
1376 | constraintTerm cterm; | |
1377 | ||
1378 | cterm = constraintExprData_termGetTerm (exp->data); | |
1379 | ||
1380 | if (constraintTerm_isStringLiteral(cterm) ) | |
1381 | { | |
1382 | cstring val; | |
1383 | val = constraintTerm_getStringLiteral (cterm); | |
1384 | if (constraintExprData_unaryExprGetOp (c->data) == MAXSET) | |
1385 | { | |
d46ce6a4 | 1386 | constraintExpr temp; |
1387 | ||
28bf4b0b | 1388 | temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) ); |
d46ce6a4 | 1389 | cstring_free(val); |
1390 | constraintExpr_free(c); | |
a779b61e | 1391 | constraintExpr_free(exp); |
1392 | ||
d46ce6a4 | 1393 | return temp; |
a779b61e | 1394 | |
3aaedf88 | 1395 | } |
1396 | if (constraintExprData_unaryExprGetOp (c->data) == MAXREAD) | |
1397 | { | |
d46ce6a4 | 1398 | constraintExpr temp; |
1399 | ||
28bf4b0b | 1400 | temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) ); |
d46ce6a4 | 1401 | cstring_free(val); |
1402 | constraintExpr_free(c); | |
a779b61e | 1403 | constraintExpr_free(exp); |
1404 | ||
d46ce6a4 | 1405 | return temp; |
3aaedf88 | 1406 | } |
1407 | BADEXIT; | |
1408 | } | |
d30bc0c7 | 1409 | |
b7b694d6 | 1410 | /* slight Kludge to hanlde var [] = { , , }; |
1411 | ** type syntax I don't think this is sounds but it should be good | |
1412 | ** enough. The C stanrad is very confusing about initialization | |
1413 | ** -- DRL 7/25/01 | |
1414 | */ | |
d30bc0c7 | 1415 | |
1416 | if (constraintTerm_isInitBlock(cterm) ) | |
1417 | { | |
1418 | constraintExpr temp; | |
1419 | int len; | |
1420 | ||
1421 | len = constraintTerm_getInitBlockLength(cterm); | |
1422 | ||
1423 | temp = constraintExpr_makeIntLiteral (len ); | |
1424 | ||
1425 | constraintExpr_free(c); | |
1426 | DPRINTF(( message("Changed too %q", constraintExpr_print(temp) | |
1427 | ) )); | |
a779b61e | 1428 | constraintExpr_free(exp); |
d30bc0c7 | 1429 | return temp; |
1430 | } | |
1431 | ||
a779b61e | 1432 | constraintExpr_free(exp); |
3aaedf88 | 1433 | return c; |
1434 | } | |
1435 | ||
1436 | if (exp->kind != binaryexpr) | |
a779b61e | 1437 | { |
1438 | constraintExpr_free(exp); | |
1439 | return c; | |
1440 | } | |
1441 | ||
0c91982e | 1442 | if (constraintExprData_binaryExprGetOp (exp->data) == BINARYOP_PLUS ) |
3aaedf88 | 1443 | { |
1444 | ||
b7b694d6 | 1445 | /* if (constraintExpr_canGetValue (constraintExprData_binaryExprGetExpr2 (exp->data) ) ) */ |
3aaedf88 | 1446 | { |
1447 | ||
4ab867d6 | 1448 | constraintExpr temp, temp2; |
3aaedf88 | 1449 | |
bb7c2085 | 1450 | DPRINTF ((message ("Doing fancy simplification") ) ); |
3aaedf88 | 1451 | |
1452 | temp = constraintExprData_binaryExprGetExpr2 (exp->data); | |
1453 | ||
1454 | temp2 = constraintExprData_binaryExprGetExpr1 (exp->data); | |
d46ce6a4 | 1455 | |
1456 | temp2 = constraintExpr_copy(temp2); | |
3aaedf88 | 1457 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp2); |
1458 | ||
1459 | ||
bb25bea6 | 1460 | temp = constraintExpr_copy (temp); |
1461 | ||
2934b455 | 1462 | c = constraintExpr_makeSubtractExpr (c, temp); |
3aaedf88 | 1463 | |
bb7c2085 | 1464 | DPRINTF ((message ("Done fancy simplification:%s", constraintExpr_unparse (c) ) ) ); |
3aaedf88 | 1465 | } |
1466 | } | |
1467 | ||
bb7c2085 | 1468 | DPRINTF ((message ("constraintExpr_simplifyUnaryExpr: Done simplification:%s", constraintExpr_unparse (c) ) ) ); |
a779b61e | 1469 | |
1470 | constraintExpr_free(exp); | |
3aaedf88 | 1471 | return c; |
1472 | } | |
1473 | ||
1474 | ||
bb25bea6 | 1475 | /*@only@*/ constraintExpr constraintExpr_simplify (/*@only@*/ constraintExpr c) |
3aaedf88 | 1476 | { |
1477 | constraintExprKind kind; | |
bb25bea6 | 1478 | constraintExpr ret; |
3aaedf88 | 1479 | constraintTerm t; |
3aaedf88 | 1480 | |
bb7c2085 | 1481 | DPRINTF ((message ("Doing constraintExpr_simplify:%s", constraintExpr_unparse (c) ) ) ); |
bb25bea6 | 1482 | |
3aaedf88 | 1483 | |
3aaedf88 | 1484 | |
749f175a | 1485 | llassert ( constraintExpr_isDefined (c) ); |
1486 | if (constraintExpr_isUndefined (c) ) | |
1487 | { | |
1488 | return constraintExpr_undefined; | |
1489 | } | |
1490 | ||
bb25bea6 | 1491 | ret = constraintExpr_copy(c); |
749f175a | 1492 | llassert(constraintExpr_isDefined (ret) ); |
1493 | ||
bb25bea6 | 1494 | constraintExpr_free(c); |
1495 | ||
1496 | ret = constraintExpr_simplifyChildren (ret); | |
1497 | ||
1498 | ret = constraintExpr_combineConstants (ret); | |
1499 | ||
1500 | ret = constraintExpr_simplifyChildren (ret); | |
1501 | ||
1502 | ||
1503 | kind = ret->kind; | |
3aaedf88 | 1504 | |
1505 | switch (kind) | |
1506 | { | |
1507 | case term: | |
bb25bea6 | 1508 | t = constraintExprData_termGetTerm (ret->data); |
d46ce6a4 | 1509 | t = constraintTerm_copy(t); |
3aaedf88 | 1510 | t = constraintTerm_simplify (t); |
bb25bea6 | 1511 | ret->data = constraintExprData_termSetTerm (ret->data, t); |
3aaedf88 | 1512 | break; |
1513 | case unaryExpr: | |
bb25bea6 | 1514 | ret = constraintExpr_simplifyunaryExpr (ret); |
3aaedf88 | 1515 | break; |
1516 | case binaryexpr: | |
bb25bea6 | 1517 | ret = constraintExpr_simplifybinaryExpr (ret); |
3aaedf88 | 1518 | break; |
1519 | default: | |
1520 | llassert(FALSE); | |
bb25bea6 | 1521 | } |
1522 | ||
bb7c2085 | 1523 | DPRINTF ((message ("constraintExpr_simplify returning :%s", constraintExpr_unparse (ret) ) ) ); |
bb25bea6 | 1524 | return ret; |
3aaedf88 | 1525 | |
1526 | } | |
1527 | ||
bb25bea6 | 1528 | /*@only@*/ |
4ab867d6 | 1529 | cstring constraintExpr_unparse (/*@temp@*/ /*@observer@*/ constraintExpr ex) /*@*/ |
3aaedf88 | 1530 | { |
1531 | cstring st; | |
1532 | constraintExprKind kind; | |
1533 | ||
1534 | llassert (ex != NULL); | |
1535 | ||
1536 | kind = ex->kind; | |
1537 | ||
1538 | switch (kind) | |
1539 | { | |
1540 | case term: | |
a779b61e | 1541 | |
1542 | if (context_getFlag (FLG_PARENCONSTRAINT) ) | |
1543 | { | |
9a48d98c | 1544 | st = message ("(%q) ", constraintTerm_unparse (constraintExprData_termGetTerm (ex->data))); |
a779b61e | 1545 | } |
1546 | else | |
1547 | { | |
9a48d98c | 1548 | st = message ("%q", constraintTerm_unparse (constraintExprData_termGetTerm (ex->data))); |
a779b61e | 1549 | } |
3aaedf88 | 1550 | break; |
1551 | case unaryExpr: | |
a779b61e | 1552 | st = message ("%q(%q)", |
1553 | constraintExprUnaryOpKind_print (constraintExprData_unaryExprGetOp (ex->data) ), | |
3aaedf88 | 1554 | constraintExpr_unparse (constraintExprData_unaryExprGetExpr (ex->data) ) |
1555 | ); | |
1556 | break; | |
1557 | case binaryexpr: | |
a779b61e | 1558 | if (context_getFlag (FLG_PARENCONSTRAINT) ) |
1559 | { | |
1560 | st = message ("(%q) %q (%q)", | |
3aaedf88 | 1561 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ), |
1562 | constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data) | |
1563 | ), | |
1564 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) ) | |
1565 | ); | |
a779b61e | 1566 | } |
1567 | else | |
1568 | { | |
1569 | st = message ("%q %q %q", | |
1570 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ), | |
1571 | constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data) | |
1572 | ), | |
1573 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) ) | |
1574 | ); | |
1575 | } | |
1576 | ||
3aaedf88 | 1577 | break; |
1578 | default: | |
1579 | llassert(FALSE); | |
1580 | st = message ("error"); | |
1581 | ||
1582 | } | |
1583 | ||
1584 | DPRINTF((message ("constraintExpr_unparse: '%s'",st) ) ); | |
1585 | return st; | |
1586 | } | |
1587 | ||
1588 | constraintExpr constraintExpr_doSRefFixBaseParam (/*@returned@*/ constraintExpr expr, exprNodeList arglist) | |
1589 | { | |
1590 | constraintTerm Term; | |
1591 | constraintExprKind kind; | |
1592 | constraintExpr expr1, expr2; | |
1593 | constraintExprData data; | |
1594 | llassert (expr != NULL); | |
1595 | ||
1596 | data = expr->data; | |
1597 | ||
1598 | kind = expr->kind; | |
1599 | ||
1600 | switch (kind) | |
1601 | { | |
1602 | case term: | |
1603 | Term = constraintExprData_termGetTerm(data); | |
d46ce6a4 | 1604 | Term = constraintTerm_copy(Term); |
1605 | ||
3aaedf88 | 1606 | Term = constraintTerm_doSRefFixBaseParam (Term, arglist); |
1607 | data = constraintExprData_termSetTerm(data, Term); | |
1608 | break; | |
1609 | case unaryExpr: | |
1610 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1611 | expr1 = constraintExpr_copy(expr1); |
1612 | ||
3aaedf88 | 1613 | expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist); |
1614 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1615 | break; | |
1616 | case binaryexpr: | |
1617 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1618 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1619 | ||
d46ce6a4 | 1620 | expr1 = constraintExpr_copy(expr1); |
1621 | expr2 = constraintExpr_copy(expr2); | |
1622 | ||
3aaedf88 | 1623 | expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist); |
1624 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1625 | expr2 = constraintExpr_doSRefFixBaseParam (expr2, arglist); | |
1626 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1627 | ||
1628 | break; | |
1629 | default: | |
1630 | llassert(FALSE); | |
1631 | data = NULL; | |
1632 | } | |
1633 | return expr; | |
1634 | } | |
1635 | ||
86d93ed3 | 1636 | /* |
1637 | / *@only@* / constraintExpr constraintExpr_doSRefFixInvarConstraint (/ *@only@* / constraintExpr expr, sRef s, ctype ct) | |
1638 | { | |
1639 | constraintExprKind kind; | |
1640 | constraintExpr expr1, expr2; | |
1641 | constraintExprData data; | |
1642 | llassert (expr != NULL); | |
1643 | ||
1644 | data = expr->data; | |
1645 | ||
1646 | kind = expr->kind; | |
1647 | ||
1648 | switch (kind) | |
1649 | { | |
1650 | case term: | |
1651 | expr = doSRefFixInvarConstraintTerm (expr, s, ct); | |
1652 | break; | |
1653 | case unaryExpr: | |
1654 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
1655 | expr1 = constraintExpr_copy(expr1); | |
1656 | expr1 = constraintExpr_doSRefFixInvarConstraint (expr1, s, ct); | |
1657 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1658 | break; | |
1659 | case binaryexpr: | |
1660 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1661 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1662 | ||
1663 | expr1 = constraintExpr_copy(expr1); | |
1664 | expr2 = constraintExpr_copy(expr2); | |
1665 | ||
1666 | expr1 = constraintExpr_doSRefFixInvarConstraint (expr1, s, ct); | |
1667 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1668 | expr2 = constraintExpr_doSRefFixInvarConstraint (expr2, s, ct); | |
1669 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1670 | ||
1671 | break; | |
1672 | default: | |
1673 | llassert(FALSE); | |
1674 | data = NULL; | |
1675 | } | |
1676 | return expr; | |
1677 | } | |
1678 | */ | |
1679 | ||
d46ce6a4 | 1680 | /*@only@*/ constraintExpr constraintExpr_doSRefFixConstraintParam (/*@only@*/ constraintExpr expr, exprNodeList arglist) /*@modifies expr@*/ |
3aaedf88 | 1681 | { |
1682 | constraintExprKind kind; | |
1683 | constraintExpr expr1, expr2; | |
1684 | constraintExprData data; | |
1685 | llassert (expr != NULL); | |
1686 | ||
1687 | data = expr->data; | |
1688 | ||
1689 | kind = expr->kind; | |
1690 | ||
1691 | switch (kind) | |
1692 | { | |
1693 | case term: | |
c3e695ff | 1694 | expr = doSRefFixConstraintParamTerm (expr, arglist); |
3aaedf88 | 1695 | break; |
1696 | case unaryExpr: | |
1697 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1698 | expr1 = constraintExpr_copy(expr1); |
3aaedf88 | 1699 | expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist); |
1700 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1701 | break; | |
1702 | case binaryexpr: | |
1703 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1704 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1705 | ||
d46ce6a4 | 1706 | expr1 = constraintExpr_copy(expr1); |
1707 | expr2 = constraintExpr_copy(expr2); | |
1708 | ||
3aaedf88 | 1709 | expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist); |
1710 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1711 | expr2 = constraintExpr_doSRefFixConstraintParam (expr2, arglist); | |
1712 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1713 | ||
1714 | break; | |
1715 | default: | |
1716 | llassert(FALSE); | |
1717 | data = NULL; | |
1718 | } | |
1719 | return expr; | |
1720 | } | |
1721 | ||
28bf4b0b | 1722 | /*@only@*/ constraintExpr constraintExpr_doFixResult (/*@only@*/ constraintExpr expr, /*@observer@*/ exprNode fcnCall) |
3aaedf88 | 1723 | { |
1724 | constraintExprKind kind; | |
1725 | constraintExpr expr1, expr2; | |
1726 | constraintExprData data; | |
1727 | llassert (expr != NULL); | |
1728 | ||
1729 | data = expr->data; | |
1730 | ||
1731 | kind = expr->kind; | |
1732 | ||
1733 | switch (kind) | |
1734 | { | |
1735 | case term: | |
c3e695ff | 1736 | expr = doFixResultTerm (expr, fcnCall); |
3aaedf88 | 1737 | break; |
1738 | case unaryExpr: | |
1739 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1740 | expr1 = constraintExpr_copy(expr1); |
1741 | ||
3aaedf88 | 1742 | expr1 = constraintExpr_doFixResult (expr1, fcnCall); |
1743 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1744 | break; | |
1745 | case binaryexpr: | |
1746 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1747 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1748 | ||
d46ce6a4 | 1749 | expr1 = constraintExpr_copy(expr1); |
1750 | expr2 = constraintExpr_copy(expr2); | |
1751 | ||
3aaedf88 | 1752 | expr1 = constraintExpr_doFixResult (expr1, fcnCall); |
1753 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1754 | expr2 = constraintExpr_doFixResult (expr2, fcnCall); | |
1755 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1756 | ||
1757 | break; | |
1758 | default: | |
1759 | llassert(FALSE); | |
1760 | data = NULL; | |
1761 | } | |
1762 | return expr; | |
1763 | } | |
1764 | ||
dc92450f | 1765 | cstring constraintExpr_print (constraintExpr expr) /*@*/ |
3aaedf88 | 1766 | { |
b9904f57 | 1767 | return constraintExpr_unparse (expr); |
3aaedf88 | 1768 | } |
1769 | ||
dc92450f | 1770 | bool constraintExpr_hasMaxSet (constraintExpr expr) /*@*/ |
3aaedf88 | 1771 | { |
1772 | cstring t; | |
1773 | ||
1774 | t = constraintExpr_unparse(expr); | |
1775 | ||
03d670b6 | 1776 | if (cstring_containsLit(t, "maxSet") != NULL ) |
d46ce6a4 | 1777 | { |
1778 | cstring_free(t); | |
1779 | return (TRUE); | |
1780 | } | |
c3e695ff | 1781 | else |
d46ce6a4 | 1782 | { |
1783 | cstring_free(t); | |
1784 | return FALSE; | |
1785 | } | |
3aaedf88 | 1786 | } |
1787 | ||
1788 | ||
1789 | ||
1790 | /*returns 1 0 -1 like strcmp | |
1791 | 1 => expr1 > expr2 | |
1792 | 0 => expr1 == expr2 | |
1793 | -1 => expr1 < expr2 | |
1794 | */ | |
b9904f57 | 1795 | |
3aaedf88 | 1796 | int constraintExpr_compare (constraintExpr expr1, constraintExpr expr2) |
1797 | { | |
b9904f57 | 1798 | long value1, value2; |
3aaedf88 | 1799 | |
1800 | if (constraintExpr_similar (expr1, expr2) ) | |
1801 | { | |
1802 | return 0; | |
1803 | } | |
b9904f57 | 1804 | |
3aaedf88 | 1805 | value1 = constraintExpr_getValue(expr1); |
1806 | value2 = constraintExpr_getValue(expr2); | |
1807 | ||
1808 | if (value1 > value2) | |
1809 | return 1; | |
1810 | ||
1811 | if (value1 == value2) | |
1812 | return 0; | |
1813 | ||
1814 | else | |
1815 | return -1; | |
1816 | } | |
1817 | ||
b9904f57 | 1818 | long constraintExpr_getValue (constraintExpr expr) |
3aaedf88 | 1819 | { |
749f175a | 1820 | llassert (constraintExpr_isDefined(expr) ); |
3aaedf88 | 1821 | llassert (expr->kind == term); |
749f175a | 1822 | |
b9904f57 | 1823 | return (constraintTerm_getValue (constraintExprData_termGetTerm (expr->data))); |
3aaedf88 | 1824 | } |
1825 | ||
1826 | bool constraintExpr_canGetValue (constraintExpr expr) | |
1827 | { | |
749f175a | 1828 | llassert ( constraintExpr_isDefined (expr) ); |
1829 | if (constraintExpr_isUndefined (expr) ) | |
1830 | { | |
1831 | return FALSE; | |
1832 | } | |
1833 | ||
3aaedf88 | 1834 | switch (expr->kind) |
1835 | { | |
1836 | case term: | |
1837 | return constraintTerm_canGetValue (constraintExprData_termGetTerm (expr->data) ); | |
1838 | default: | |
1839 | return FALSE; | |
1840 | ||
1841 | } | |
c3e695ff | 1842 | |
1843 | BADEXIT; | |
3aaedf88 | 1844 | } |
1845 | ||
3aaedf88 | 1846 | fileloc constraintExpr_getFileloc (constraintExpr expr) |
1847 | { | |
1848 | constraintExpr e; | |
1849 | constraintTerm t; | |
1850 | constraintExprKind kind; | |
1851 | ||
749f175a | 1852 | llassert ( constraintExpr_isDefined (expr) ); |
1853 | if (constraintExpr_isUndefined (expr) ) | |
1854 | { | |
1855 | return fileloc_undefined; | |
1856 | } | |
1857 | ||
1858 | ||
3aaedf88 | 1859 | kind = expr->kind; |
1860 | ||
1861 | switch (kind) | |
1862 | { | |
1863 | case term: | |
1864 | t = constraintExprData_termGetTerm (expr->data); | |
1865 | return (constraintTerm_getFileloc (t) ); | |
c3e695ff | 1866 | /*@notreached@*/ |
3aaedf88 | 1867 | break; |
1868 | case unaryExpr: | |
1869 | e = constraintExprData_unaryExprGetExpr (expr->data); | |
1870 | return (constraintExpr_getFileloc (e) ); | |
c3e695ff | 1871 | /*@notreached@*/ |
3aaedf88 | 1872 | break; |
1873 | case binaryexpr: | |
1874 | e = constraintExprData_binaryExprGetExpr1 (expr->data); | |
1875 | return (constraintExpr_getFileloc (e) ); | |
c3e695ff | 1876 | /*@notreached@*/ |
1877 | break; | |
3aaedf88 | 1878 | } |
1879 | llassert (FALSE); | |
3aaedf88 | 1880 | return (fileloc_undefined); |
1881 | } | |
1882 | ||
c3e695ff | 1883 | /*drl moved from constriantTerm.c 5/20/001*/ |
4ab867d6 | 1884 | static /*@only@*/ constraintExpr |
1885 | doFixResultTerm (/*@only@*/ constraintExpr e, /*@exposed@*/ exprNode fcnCall) | |
c3e695ff | 1886 | { |
1887 | constraintTerm t; | |
1888 | sRef s; | |
749f175a | 1889 | constraintExprData data; |
1890 | constraintExprKind kind; | |
c3e695ff | 1891 | constraintExpr ret; |
2a6e9c30 | 1892 | |
1893 | llassert (constraintExpr_isDefined (e) ); | |
749f175a | 1894 | |
1895 | data = e->data; | |
1896 | kind = e->kind; | |
2a6e9c30 | 1897 | |
1898 | llassert (kind == term); | |
1899 | ||
c3e695ff | 1900 | t = constraintExprData_termGetTerm (data); |
2a6e9c30 | 1901 | llassert (constraintTerm_isDefined (t)); |
1902 | ||
c3e695ff | 1903 | ret = e; |
2a6e9c30 | 1904 | |
1905 | switch (constraintTerm_getKind (t)) | |
c3e695ff | 1906 | { |
9a48d98c | 1907 | case CTT_EXPR: |
1908 | case CTT_INTLITERAL: | |
c3e695ff | 1909 | break; |
1910 | ||
9a48d98c | 1911 | case CTT_SREF: |
a8e557d3 | 1912 | s = constraintTerm_getSRef(t); |
c3e695ff | 1913 | if (sRef_isResult (s)) |
1914 | { | |
1915 | ret = constraintExpr_makeExprNode(fcnCall); | |
4ab867d6 | 1916 | constraintExpr_free(e); |
1917 | e = NULL; | |
1918 | } | |
1919 | else | |
1920 | { | |
1921 | e = NULL; | |
c3e695ff | 1922 | } |
1923 | break; | |
1924 | default: | |
1925 | BADEXIT; | |
1926 | } | |
1927 | ||
1928 | return ret; | |
1929 | ||
1930 | } | |
2a6e9c30 | 1931 | |
1932 | #if 0 | |
1933 | ||
1934 | /*to be used for structure checking */ | |
1935 | ||
86d93ed3 | 1936 | / *@only@* / static constraintExpr |
1937 | doSRefFixInvarConstraintTerm (/ *@only@* / constraintExpr e, | |
1938 | sRef s, ctype ct) | |
1939 | { | |
1940 | constraintTerm t; | |
1941 | ||
1942 | constraintExprData data = e->data; | |
1943 | ||
1944 | constraintExprKind kind = e->kind; | |
1945 | ||
1946 | constraintExpr ret; | |
c3e695ff | 1947 | |
86d93ed3 | 1948 | llassert(kind == term); |
1949 | ||
1950 | t = constraintExprData_termGetTerm (data); | |
1951 | llassert (constraintTerm_isDefined(t) ); | |
1952 | ||
1953 | ret = e; | |
1954 | ||
1955 | DPRINTF (("Fixing: %s", constraintExpr_print (e))); | |
1956 | ||
1957 | switch (constraintTerm_getKind(t)) | |
1958 | { | |
9a48d98c | 1959 | case CTT_EXPR: |
1960 | DPRINTF((message ("%q @ %q ", constraintTerm_unparse(t), | |
86d93ed3 | 1961 | fileloc_unparse (constraintTerm_getFileloc(t) ) ) )); |
1962 | break; | |
9a48d98c | 1963 | case CTT_INTLITERAL: |
1964 | DPRINTF((message (" %q ", constraintTerm_unparse (t)) )); | |
86d93ed3 | 1965 | break; |
1966 | ||
9a48d98c | 1967 | case CTT_SREF: |
86d93ed3 | 1968 | / * evans 2001-07-24: constants should use the original term * / |
1969 | if (!constraintTerm_canGetValue (t)) | |
1970 | { | |
1971 | sRef snew; | |
1972 | DPRINTF ((message("Doing sRef_fixInvarConstraint for %q ", | |
9a48d98c | 1973 | constraintTerm_unparse (t) ) )); |
86d93ed3 | 1974 | |
1975 | snew = fixSref (ct, s, constraintTerm_getSRef(t)); | |
1976 | ||
1977 | ret = constraintExpr_makeTermsRef(snew); | |
1978 | ||
1979 | constraintExpr_free (e); | |
1980 | ||
1981 | DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ", | |
1982 | constraintExpr_print (ret) ) )); | |
1983 | / *@-branchstate@* / | |
1984 | } / *@=branchstate@* / | |
1985 | ||
1986 | break; | |
1987 | default: | |
1988 | BADEXIT; | |
1989 | } | |
1990 | ||
1991 | return ret; | |
1992 | ||
1993 | } | |
2a6e9c30 | 1994 | #endif |
86d93ed3 | 1995 | |
c3e695ff | 1996 | /*drl moved from constriantTerm.c 5/20/001*/ |
d46ce6a4 | 1997 | /*@only@*/ static constraintExpr |
4ab867d6 | 1998 | doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr e, /*@observer@*/ /*@temp@*/ exprNodeList arglist) |
c3e695ff | 1999 | { |
2000 | constraintTerm t; | |
2001 | ||
749f175a | 2002 | constraintExprData data; |
c3e695ff | 2003 | |
749f175a | 2004 | constraintExprKind kind; |
c3e695ff | 2005 | |
2006 | constraintExpr ret; | |
2007 | ||
749f175a | 2008 | |
2009 | llassert(constraintExpr_isDefined (e) ); | |
2010 | ||
2011 | data = e->data; | |
2012 | ||
2013 | kind = e->kind; | |
2014 | ||
2015 | ||
2016 | ||
c3e695ff | 2017 | llassert(kind == term); |
2018 | ||
2019 | t = constraintExprData_termGetTerm (data); | |
28bf4b0b | 2020 | llassert (constraintTerm_isDefined(t) ); |
c3e695ff | 2021 | |
2022 | ret = e; | |
b9904f57 | 2023 | |
2024 | DPRINTF (("Fixing: %s", constraintExpr_print (e))); | |
2025 | ||
2026 | switch (constraintTerm_getKind(t)) | |
c3e695ff | 2027 | { |
9a48d98c | 2028 | case CTT_EXPR: |
2029 | DPRINTF((message ("%q @ %q ", constraintTerm_unparse(t), | |
bb25bea6 | 2030 | fileloc_unparse (constraintTerm_getFileloc(t) ) ) )); |
c3e695ff | 2031 | break; |
9a48d98c | 2032 | case CTT_INTLITERAL: |
2033 | DPRINTF((message (" %q ", constraintTerm_unparse (t)) )); | |
d46ce6a4 | 2034 | break; |
9a48d98c | 2035 | case CTT_SREF: |
b9904f57 | 2036 | /* evans 2001-07-24: constants should use the original term */ |
2037 | if (!constraintTerm_canGetValue (t)) | |
2038 | { | |
2039 | DPRINTF ((message("Doing sRef_fixConstraintParam for %q ", | |
9a48d98c | 2040 | constraintTerm_unparse (t) ) )); |
b9904f57 | 2041 | ret = sRef_fixConstraintParam (constraintTerm_getSRef(t), arglist); |
2042 | ||
2043 | constraintExpr_free (e); | |
2044 | ||
2045 | DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ", | |
2046 | constraintExpr_print (ret) ) )); | |
2047 | /*@-branchstate@*/ | |
2048 | } /*@=branchstate@*/ | |
d46ce6a4 | 2049 | |
c3e695ff | 2050 | break; |
2051 | default: | |
2052 | BADEXIT; | |
2053 | } | |
b9904f57 | 2054 | |
c3e695ff | 2055 | return ret; |
2056 | ||
2057 | } | |
3aaedf88 | 2058 | |
2059 | ||
749f175a | 2060 | #if 0 |
2061 | bool constraintExpr_includesTerm (constraintExpr expr, constraintTerm term) | |
2062 | { | |
2063 | if (constraintTerm_hasTerm (expr->term, term) ) | |
2064 | return TRUE; | |
3aaedf88 | 2065 | |
749f175a | 2066 | if ((expr->expr) != NULL) |
2067 | { | |
2068 | return ( constraintExpr_includesTerm (expr->expr, term) ); | |
2069 | } | |
2070 | return FALSE; | |
3aaedf88 | 2071 | |
749f175a | 2072 | } |
2073 | #endif | |
3aaedf88 | 2074 | |
bb25bea6 | 2075 | /*drl added 6/11/01 */ |
2076 | bool constraintExpr_isBinaryExpr (/*@observer@*/ constraintExpr c) | |
2077 | { | |
749f175a | 2078 | |
2079 | llassert(constraintExpr_isDefined (c) ); | |
2080 | ||
2081 | if ( ! (constraintExpr_isDefined (c) ) ) | |
2082 | return FALSE; | |
2083 | ||
bb25bea6 | 2084 | if (c->kind == binaryexpr) |
2085 | return TRUE; | |
3aaedf88 | 2086 | |
bb25bea6 | 2087 | else |
2088 | return FALSE; | |
2089 | } | |
3aaedf88 | 2090 | |
a779b61e | 2091 | /*drl added 8/08/001 */ |
2092 | bool constraintExpr_isTerm (/*@observer@*/ constraintExpr c) /*@*/ | |
2093 | { | |
0ec8d634 | 2094 | llassert(constraintExpr_isDefined (c) ); |
2095 | ||
a779b61e | 2096 | if (c->kind == term) |
2097 | return TRUE; | |
2098 | ||
2099 | else | |
2100 | return FALSE; | |
2101 | } | |
2102 | ||
2103 | /*@observer@*/ /*@temp@*/ constraintTerm constraintExpr_getTerm ( /*@temp@*/ /*@observer@*/ constraintExpr c) /*@*/ | |
2104 | { | |
2105 | constraintTerm term; | |
2106 | ||
0ec8d634 | 2107 | llassert(constraintExpr_isDefined (c) ); |
2108 | ||
a779b61e | 2109 | llassert(constraintExpr_isTerm(c) ); |
2110 | ||
2111 | term = constraintExprData_termGetTerm(c->data); | |
2112 | ||
2113 | return term; | |
2114 | } | |
2115 | ||
920a3797 | 2116 | static void binaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f) |
2117 | { | |
2118 | constraintExpr expr1; | |
2119 | constraintExprBinaryOpKind binaryOp; | |
2120 | constraintExpr expr2; | |
2121 | ||
2122 | ||
2123 | binaryOp = constraintExprData_binaryExprGetOp (data); | |
2124 | ||
2125 | fprintf(f, "%d\n", (int) binaryOp); | |
2126 | ||
2127 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
2128 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
2129 | ||
2130 | fprintf(f, "e1\n"); | |
2131 | ||
2132 | constraintExpr_dump(expr1, f); | |
2133 | ||
2134 | fprintf(f, "e2\n"); | |
2135 | constraintExpr_dump(expr2, f); | |
2136 | } | |
2137 | ||
2138 | ||
2139 | static constraintExpr binaryExpr_undump (FILE *f) | |
2140 | { | |
2141 | constraintExpr expr1; | |
2142 | constraintExprBinaryOpKind binaryOp; | |
2143 | constraintExpr expr2; | |
2144 | ||
2145 | constraintExpr ret; | |
2146 | ||
2147 | ||
2148 | ||
2149 | char * str; | |
2150 | char * os; | |
2151 | ||
3be9a165 | 2152 | os = mstring_create (MAX_DUMP_LINE_LENGTH); |
2153 | ||
920a3797 | 2154 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); |
2155 | ||
0ec8d634 | 2156 | if (! mstring_isDefined(str) ) |
2157 | { | |
2158 | llfatalbug(message("Library file is corrupted") ); | |
2159 | } | |
920a3797 | 2160 | |
28bf4b0b | 2161 | binaryOp = (constraintExprBinaryOpKind) reader_getInt(&str); |
920a3797 | 2162 | |
2163 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2164 | ||
0ec8d634 | 2165 | if (! mstring_isDefined(str) ) |
2166 | { | |
2167 | llfatalbug(message("Library file is corrupted") ); | |
2168 | } | |
2169 | ||
28bf4b0b | 2170 | reader_checkChar (&str, 'e'); |
2171 | reader_checkChar (&str, '1'); | |
920a3797 | 2172 | |
2173 | expr1 = constraintExpr_undump (f); | |
2174 | ||
2175 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2176 | ||
28bf4b0b | 2177 | reader_checkChar (&str, 'e'); |
2178 | reader_checkChar (&str, '2'); | |
920a3797 | 2179 | |
2180 | expr2 = constraintExpr_undump (f); | |
2181 | ||
2182 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2); | |
2183 | ret->data = constraintExprData_binaryExprSetOp(ret->data, binaryOp); | |
2184 | ||
2185 | free(os); | |
2186 | return ret; | |
2187 | } | |
2188 | ||
2189 | ||
2190 | ||
2191 | static void unaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f) | |
2192 | { | |
2193 | ||
2194 | constraintExpr expr; | |
2195 | constraintExprUnaryOpKind unaryOp; | |
2196 | ||
2197 | unaryOp = constraintExprData_unaryExprGetOp (data); | |
2198 | ||
2199 | fprintf(f, "%d\n", (int) unaryOp); | |
2200 | ||
2201 | expr = constraintExprData_unaryExprGetExpr (data); | |
2202 | ||
2203 | constraintExpr_dump(expr, f); | |
2204 | } | |
2205 | ||
2206 | static constraintExpr unaryExpr_undump ( FILE *f) | |
2207 | { | |
2208 | ||
2209 | constraintExpr expr; | |
2210 | constraintExprUnaryOpKind unaryOp; | |
2211 | constraintExpr ret; | |
2212 | ||
2213 | char * str; | |
2214 | char * os; | |
2215 | ||
2216 | str = mstring_create (MAX_DUMP_LINE_LENGTH); | |
2217 | os = str; | |
2218 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2219 | ||
0ec8d634 | 2220 | if (! mstring_isDefined(str) ) |
2221 | { | |
2222 | llfatalbug(message("Library file is corrupted") ); | |
2223 | } | |
2224 | ||
28bf4b0b | 2225 | unaryOp = (constraintExprUnaryOpKind) reader_getInt(&str); |
920a3797 | 2226 | |
2227 | expr = constraintExpr_undump (f); | |
2228 | ||
2229 | ret = constraintExpr_makeUnaryOp (expr, unaryOp); | |
2230 | ||
2231 | free(os); | |
2232 | ||
2233 | return ret; | |
2234 | } | |
2235 | ||
2236 | void constraintExpr_dump (/*@observer@*/ constraintExpr expr, FILE *f) | |
2237 | { | |
2238 | constraintExprKind kind; | |
2239 | constraintTerm t; | |
2240 | ||
0f9b7373 | 2241 | |
0ec8d634 | 2242 | llassert(constraintExpr_isDefined(expr) ); |
2243 | ||
0f9b7373 | 2244 | DPRINTF((message("constraintExpr_dump:: dumping constraintExpr %s", |
2245 | constraintExpr_unparse(expr) | |
2246 | ) )); | |
920a3797 | 2247 | |
2248 | kind = expr->kind; | |
2249 | ||
2250 | fprintf(f,"%d\n", (int) kind); | |
2251 | ||
2252 | switch (kind) | |
2253 | { | |
2254 | case term: | |
2255 | t = constraintExprData_termGetTerm (expr->data); | |
2256 | constraintTerm_dump (t, f); | |
2257 | break; | |
2258 | case unaryExpr: | |
2259 | unaryExpr_dump (expr->data, f); | |
2260 | break; | |
2261 | case binaryexpr: | |
2262 | binaryExpr_dump (expr->data, f); | |
2263 | break; | |
2264 | } | |
2265 | } | |
2266 | ||
2267 | /*@only@*/ constraintExpr constraintExpr_undump (FILE *f) | |
2268 | { | |
2269 | constraintExprKind kind; | |
2270 | constraintTerm t; | |
2271 | constraintExpr ret; | |
2272 | ||
2273 | char * s; | |
2274 | char * os; | |
2275 | ||
2276 | s = mstring_create (MAX_DUMP_LINE_LENGTH); | |
2277 | ||
2278 | os = s; | |
2279 | ||
2280 | s = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2281 | ||
0ec8d634 | 2282 | if (! mstring_isDefined(s) ) |
2283 | { | |
2284 | llfatalbug(message("Library file is corrupted") ); | |
2285 | } | |
2286 | ||
28bf4b0b | 2287 | kind = (constraintExprKind) reader_getInt(&s); |
920a3797 | 2288 | |
2289 | free (os); | |
2290 | ||
2291 | switch (kind) | |
2292 | { | |
2293 | case term: | |
2294 | t = constraintTerm_undump (f); | |
2295 | ret = constraintExpr_makeTerm(t); | |
2296 | break; | |
2297 | case unaryExpr: | |
2298 | ret = unaryExpr_undump (f); | |
2299 | break; | |
2300 | case binaryexpr: | |
2301 | ret = binaryExpr_undump (f); | |
2302 | break; | |
2303 | } | |
2304 | ||
2305 | return ret; | |
2306 | ||
2307 | } | |
a779b61e | 2308 | |
2309 | int constraintExpr_getDepth (constraintExpr ex) | |
2310 | { | |
2311 | int ret; | |
2312 | ||
2313 | constraintExprKind kind; | |
2314 | ||
2315 | llassert (ex != NULL); | |
2316 | ||
2317 | kind = ex->kind; | |
2318 | ||
2319 | switch (kind) | |
2320 | { | |
2321 | case term: | |
2322 | ret = 1; | |
2323 | break; | |
2324 | case unaryExpr: | |
2325 | ret = constraintExpr_getDepth (constraintExprData_unaryExprGetExpr (ex->data) ); | |
2326 | ret++; | |
2327 | ||
2328 | break; | |
2329 | case binaryexpr: | |
2330 | ret = 0; | |
2331 | ret = constraintExpr_getDepth (constraintExprData_binaryExprGetExpr1 (ex->data) ); | |
2332 | ||
2333 | ret++; | |
2334 | ||
2335 | ret += constraintExpr_getDepth (constraintExprData_binaryExprGetExpr2 (ex->data) ); | |
2336 | ||
2337 | break; | |
2338 | default: | |
2339 | BADEXIT; | |
2340 | } | |
2341 | ||
2342 | return ret; | |
2343 | } | |
2344 | ||
2345 | ||
86d93ed3 | 2346 | bool constraintExpr_canGetCType (constraintExpr e) /*@*/ |
2347 | { | |
0ec8d634 | 2348 | if (constraintExpr_isUndefined(e) ) |
2349 | return FALSE; | |
2350 | ||
86d93ed3 | 2351 | if (e->kind == term) |
2352 | { | |
2353 | return TRUE; | |
2354 | } | |
2355 | else | |
2356 | { | |
2357 | DPRINTF(( message("constraintExpr_canGetCType: can't get type for %s ", | |
2358 | constraintExpr_print(e) ) )); | |
2359 | return FALSE; | |
2360 | } | |
2361 | } | |
2362 | ||
2363 | ctype constraintExpr_getCType (constraintExpr e) /*@*/ | |
2364 | { | |
2365 | constraintTerm t; | |
0ec8d634 | 2366 | |
2367 | llassert(constraintExpr_isDefined(e) ); | |
2368 | ||
86d93ed3 | 2369 | llassert(constraintExpr_canGetCType(e) ); |
2370 | ||
2371 | switch (e->kind) | |
2372 | { | |
2373 | case term: | |
2374 | t = constraintExprData_termGetTerm (e->data); | |
2375 | return (constraintTerm_getCType(t) ); | |
2376 | /* assume that a unary expression will be an int ... */ | |
2377 | case unaryExpr: | |
2378 | return ctype_signedintegral; | |
2379 | ||
2380 | /* drl for just return type of first operand */ | |
2381 | case binaryexpr: | |
2382 | return ( | |
2383 | constraintExpr_getCType | |
2384 | (constraintExprData_binaryExprGetExpr1 (e->data) ) | |
2385 | ); | |
2386 | default: | |
2387 | BADEXIT; | |
2388 | } | |
2389 | BADEXIT; | |
2390 | } | |
2391 | ||
2392 | /* drl add 10-5-001 */ | |
2393 | ||
2394 | static bool constraintExpr_hasTypeChange(constraintExpr e) | |
2395 | { | |
0ec8d634 | 2396 | llassert(constraintExpr_isDefined(e) ); |
86d93ed3 | 2397 | if (constraintExpr_isDefined((e)) && (e->ct == TRUE) ) |
2398 | { | |
2399 | return TRUE; | |
2400 | } | |
2401 | ||
2402 | if (e->kind == unaryExpr) | |
2403 | { | |
2404 | if (constraintExprData_unaryExprGetOp (e->data) == MAXSET) | |
2405 | { | |
2406 | constraintExpr ce; | |
2407 | ||
2408 | ce = constraintExprData_unaryExprGetExpr(e->data); | |
2409 | ||
2410 | return (constraintExpr_hasTypeChange(ce) ); | |
2411 | } | |
2412 | ||
2413 | } | |
2414 | return FALSE; | |
2415 | } | |
2416 | ||
2417 | /* drl add 10-5-001 */ | |
2418 | ||
2419 | static ctype constraintExpr_getOrigType (constraintExpr e) | |
2420 | { | |
2421 | ||
0ec8d634 | 2422 | llassert(constraintExpr_isDefined(e) ); |
86d93ed3 | 2423 | llassert(constraintExpr_hasTypeChange(e) ); |
2424 | ||
2425 | ||
2426 | if (e->ct == TRUE) | |
2427 | { | |
2428 | return e->origType; | |
2429 | } | |
2430 | ||
2431 | if (e->kind == unaryExpr) | |
2432 | { | |
2433 | if (constraintExprData_unaryExprGetOp (e->data) == MAXSET) | |
2434 | { | |
2435 | constraintExpr ce; | |
2436 | ||
2437 | ce = constraintExprData_unaryExprGetExpr(e->data); | |
2438 | ||
2439 | return (constraintExpr_getOrigType(ce) ); | |
2440 | } | |
2441 | ||
2442 | } | |
2443 | ||
2444 | BADEXIT; | |
2445 | } | |
2446 | ||
2447 | /*drl added these around 10/18/001*/ | |
2448 | ||
2449 | static /*@only@*/ constraintExpr constraintExpr_div (/*@only@*/ constraintExpr e, /*@unused@*/ ctype ct) | |
2450 | { | |
2451 | return e; | |
2452 | } | |
2453 | ||
0ec8d634 | 2454 | |
2455 | /*@access exprNode@*/ | |
86d93ed3 | 2456 | static /*@only@*/ constraintExpr constraintTerm_simpleDivTypeExprNode(/*@only@*/ constraintExpr e, ctype ct) |
2457 | { | |
2458 | exprData data; | |
2459 | exprNode t1, t2, expr; | |
2460 | lltok tok; | |
2461 | constraintTerm t; | |
2462 | ||
0ec8d634 | 2463 | llassert(constraintExpr_isDefined(e) ); |
2464 | ||
86d93ed3 | 2465 | DPRINTF(( |
2466 | message("constraintTerm_simpleDivTypeExprNode e=%s, ct=%s", | |
2467 | constraintExpr_print(e), ctype_unparse(ct) | |
2468 | ) | |
2469 | )); | |
2470 | ||
2471 | t = constraintExprData_termGetTerm(e->data); | |
2472 | ||
2473 | expr = constraintTerm_getExprNode(t); | |
0ec8d634 | 2474 | |
2475 | llassert(constraintExpr_isDefined(e) ); | |
2476 | llassert(exprNode_isDefined(expr) ); | |
86d93ed3 | 2477 | |
2478 | if (expr->kind == XPR_OP) | |
2479 | { | |
2480 | data = expr->edata; | |
2481 | ||
2482 | t1 = exprData_getOpA (data); | |
2483 | t2 = exprData_getOpB (data); | |
2484 | tok = exprData_getOpTok (data); | |
2485 | if (lltok_isMult(tok) ) | |
2486 | { | |
0ec8d634 | 2487 | llassert(exprNode_isDefined(t1) && exprNode_isDefined(t2) ); |
2488 | /*drl 3/2/2003 we know this from the fact that it's a | |
2489 | multiplication operation...*/ | |
86d93ed3 | 2490 | |
2491 | if ((t1->kind == XPR_SIZEOF) || (t1->kind == XPR_SIZEOFT) ) | |
2492 | { | |
2493 | ctype ct2; | |
2494 | ||
2495 | if (t1->kind == XPR_SIZEOFT) | |
2496 | { | |
2497 | ct2 = qtype_getType (exprData_getType (t1->edata)); | |
2498 | } | |
2499 | else | |
2500 | { | |
0fe21ba7 | 2501 | exprNode tempE; |
2502 | ||
2503 | tempE = exprData_getSingle (t1->edata); | |
2504 | ||
2505 | ct2 = exprNode_getType (tempE); | |
86d93ed3 | 2506 | } |
2507 | if (ctype_match (ctype_makePointer(ct2), ct) ) | |
2508 | { | |
2509 | /* this is a bit sloopy but ... */ | |
2510 | constraintExpr_free(e); | |
2511 | return constraintExpr_makeExprNode(t2); | |
2512 | } | |
2513 | } | |
2514 | ||
2515 | ||
2516 | else if ((t2->kind == XPR_SIZEOF) || (t2->kind == XPR_SIZEOFT) ) | |
2517 | { | |
2518 | ctype ct2; | |
2519 | ||
2520 | if (t2->kind == XPR_SIZEOFT) | |
2521 | { | |
2522 | ct2 = qtype_getType (exprData_getType (t2->edata)); | |
2523 | } | |
2524 | else | |
2525 | { | |
0ec8d634 | 2526 | exprNode exprTemp; |
2527 | exprData eDTemp; | |
2528 | ||
2529 | exprTemp = exprData_getSingle (t2->edata); | |
2530 | ||
2531 | llassert(exprNode_isDefined(exprTemp) ); | |
2532 | eDTemp = exprTemp->edata; | |
2533 | ||
2534 | ct2 = qtype_getType (exprData_getType(eDTemp ) ); | |
2535 | ||
86d93ed3 | 2536 | } |
2537 | if (ctype_match (ctype_makePointer(ct2),ct) ) | |
2538 | { | |
c757ee29 | 2539 | /*a bit of a sloopy way to do this but... */ |
86d93ed3 | 2540 | constraintExpr_free(e); |
2541 | return constraintExpr_makeExprNode(t1); | |
2542 | } | |
2543 | } | |
2544 | else | |
2545 | { | |
2546 | /*empty*/ | |
2547 | } | |
2548 | ||
2549 | } | |
2550 | } | |
2551 | return (constraintExpr_div (e, ct) ); | |
2552 | } | |
0ec8d634 | 2553 | /*@noaccess exprNode@*/ |
86d93ed3 | 2554 | |
2555 | static /*@only@*/ constraintExpr simpleDivType (/*@only@*/ constraintExpr e, ctype ct) | |
2556 | { | |
86d93ed3 | 2557 | DPRINTF(( (message("simpleDiv got %s ", constraintExpr_unparse(e) ) ) |
2558 | )); | |
2559 | ||
0ec8d634 | 2560 | llassert(constraintExpr_isDefined(e) ); |
2561 | ||
86d93ed3 | 2562 | switch (e->kind) |
2563 | { | |
2564 | case term: | |
2565 | ||
2566 | { | |
2567 | constraintTerm t; | |
2568 | ||
2569 | t = constraintExprData_termGetTerm(e->data); | |
2570 | ||
2571 | ||
2572 | if (constraintTerm_isExprNode (t) ) | |
2573 | { | |
2574 | return constraintTerm_simpleDivTypeExprNode(e, ct); | |
2575 | ||
2576 | /* search for * size of ct and remove */ | |
2577 | } | |
2578 | return constraintExpr_div (e, ct); | |
2579 | } | |
2580 | ||
2581 | case binaryexpr: | |
2582 | { | |
2583 | constraintExpr temp; | |
2584 | ||
2585 | temp = constraintExprData_binaryExprGetExpr1 (e->data); | |
2586 | temp = constraintExpr_copy(temp); | |
2587 | temp = simpleDivType (temp, ct); | |
2588 | ||
2589 | e->data = constraintExprData_binaryExprSetExpr1 (e->data, temp); | |
2590 | ||
2591 | temp = constraintExprData_binaryExprGetExpr2 (e->data); | |
2592 | temp = constraintExpr_copy(temp); | |
2593 | temp = simpleDivType (temp, ct); | |
2594 | e->data = constraintExprData_binaryExprSetExpr2 (e->data, temp); | |
2595 | ||
2596 | DPRINTF(( (message("simpleDiv binaryexpr returning %s ", constraintExpr_unparse(e) ) ) | |
2597 | )); | |
2598 | ||
2599 | return e; | |
2600 | } | |
2601 | case unaryExpr: | |
2602 | return constraintExpr_div (e, ct); | |
2603 | ||
2604 | default: | |
2605 | BADEXIT; | |
2606 | } | |
2607 | } | |
2608 | ||
2609 | static /*@only@*/ constraintExpr constraintExpr_adjustMaxSetForCast(/*@only@*/ constraintExpr e, ctype ct) | |
2610 | { | |
2611 | ||
2612 | DPRINTF(( (message("constraintExpr_adjustMaxSetForCast got %s ", constraintExpr_unparse(e) ) ) | |
2613 | )); | |
2614 | ||
2615 | e = constraintExpr_makeIncConstraintExpr(e); | |
2616 | ||
2617 | e = constraintExpr_simplify(e); | |
2618 | ||
2619 | ||
2620 | e = simpleDivType (e, ct); | |
2621 | ||
2622 | e = constraintExpr_makeDecConstraintExpr(e); | |
2623 | ||
2624 | e = constraintExpr_simplify(e); | |
2625 | ||
2626 | DPRINTF(( (message("constraintExpr_adjustMaxSetForCast returning %s ", constraintExpr_unparse(e) ) ) | |
2627 | )); | |
2628 | ||
2629 | return e; | |
2630 | } | |
2631 | ||
fba0ed37 | 2632 | |
2633 | bool constraintExpr_isConstantOnly ( constraintExpr e ) | |
2634 | { | |
2635 | DPRINTF(( (message("constraintExpr_isConstantOnly %s ", | |
2636 | constraintExpr_unparse(e) ) ) | |
2637 | )); | |
2638 | ||
0ec8d634 | 2639 | llassert(constraintExpr_isDefined(e) ); |
2640 | ||
fba0ed37 | 2641 | switch (e->kind) |
2642 | { | |
2643 | case term: | |
2644 | { | |
2645 | constraintTerm t; | |
2646 | ||
2647 | t = constraintExprData_termGetTerm(e->data); | |
2648 | ||
2649 | ||
2650 | if (constraintTerm_isConstantOnly (t) ) | |
2651 | { | |
2652 | return TRUE; | |
2653 | } | |
2654 | else | |
2655 | { | |
2656 | return FALSE; | |
2657 | } | |
2658 | } | |
2659 | ||
2660 | case binaryexpr: | |
2661 | { | |
2662 | constraintExpr temp1, temp2; | |
2663 | ||
2664 | temp1 = constraintExprData_binaryExprGetExpr1 (e->data); | |
2665 | ||
2666 | temp2 = constraintExprData_binaryExprGetExpr2 (e->data); | |
2667 | ||
2668 | if (constraintExpr_isConstantOnly(temp1) && | |
2669 | constraintExpr_isConstantOnly(temp2) ) | |
2670 | { | |
2671 | return TRUE; | |
2672 | } | |
2673 | else | |
2674 | { | |
2675 | return FALSE; | |
2676 | } | |
2677 | } | |
2678 | ||
2679 | case unaryExpr: | |
2680 | { | |
2681 | constraintExpr temp; | |
2682 | ||
2683 | temp = constraintExprData_unaryExprGetExpr (e->data ); | |
2684 | ||
2685 | if (constraintExpr_isConstantOnly(temp) ) | |
2686 | { | |
2687 | return TRUE; | |
2688 | } | |
2689 | else | |
2690 | { | |
2691 | return FALSE; | |
2692 | } | |
2693 | } | |
2694 | default: | |
2695 | BADEXIT; | |
2696 | } | |
2697 | } | |
2698 |