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