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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 | |
ae133592 | 57 | static bool constraintExpr_canGetCType (constraintExpr p_e) /*@*/; |
86d93ed3 | 58 | |
59 | static ctype constraintExpr_getCType (constraintExpr p_e); | |
60 | ||
ae133592 | 61 | static /*@only@*/ constraintExpr constraintExpr_adjustMaxSetForCast (/*@only@*/ constraintExpr p_e, |
62 | ctype p_tfrom, ctype p_tto, | |
6317f163 | 63 | fileloc p_loc); |
86d93ed3 | 64 | |
749f175a | 65 | /*@special@*/ /*@notnull@*/ static constraintExpr constraintExpr_makeBinaryOp (void) |
b7b694d6 | 66 | /* @allocates result->data @ @sets result->kind @ */ ; |
3aaedf88 | 67 | |
d46ce6a4 | 68 | void constraintExpr_free (/*@only@*/ constraintExpr expr) |
69 | { | |
70 | if (constraintExpr_isDefined(expr) ) | |
71 | { | |
72 | switch (expr->kind) | |
73 | { | |
74 | case unaryExpr: | |
75 | constraintExprData_freeUnaryExpr(expr->data); | |
76 | break; | |
77 | case binaryexpr: | |
78 | constraintExprData_freeBinaryExpr(expr->data); | |
79 | break; | |
80 | case term: | |
81 | constraintExprData_freeTerm(expr->data); | |
82 | break; | |
83 | default: | |
84 | BADEXIT; | |
85 | } | |
bb25bea6 | 86 | |
87 | expr->data = NULL; | |
d46ce6a4 | 88 | free (expr); |
89 | } | |
90 | else | |
91 | { | |
92 | llcontbug(message("attempted to free null pointer in constraintExpr_free")); | |
93 | } | |
94 | } | |
95 | ||
3aaedf88 | 96 | bool constraintExpr_isLit (constraintExpr expr) |
97 | { | |
dc92450f | 98 | llassert (expr != NULL); |
3aaedf88 | 99 | |
100 | if (expr->kind == term) | |
101 | { | |
102 | constraintTerm term = constraintExprData_termGetTerm (expr->data); | |
103 | if (constraintTerm_isIntLiteral (term) ) | |
104 | { | |
105 | return TRUE; | |
106 | } | |
107 | ||
108 | } | |
109 | return FALSE; | |
110 | } | |
111 | ||
7c9c4a67 | 112 | static bool isZeroBinaryOp (constraintExpr expr) |
113 | { | |
114 | constraintExpr e2; | |
115 | ||
7272a1c1 | 116 | llassert (expr != NULL); /* evans 2001-07-18 */ |
117 | ||
7c9c4a67 | 118 | if (!constraintExpr_isBinaryExpr (expr) ) |
119 | { | |
120 | return FALSE; | |
121 | } | |
122 | ||
123 | ||
124 | e2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
125 | ||
7272a1c1 | 126 | llassert (e2 != NULL); /* evans 2001-07-18 */ |
127 | ||
7c9c4a67 | 128 | if (constraintExpr_isBinaryExpr (e2) ) |
129 | { | |
130 | constraintExpr e1; | |
131 | constraintExprBinaryOpKind op; | |
132 | ||
133 | op = constraintExprData_binaryExprGetOp (e2->data); | |
134 | ||
135 | e1 = constraintExprData_binaryExprGetExpr1(e2->data); | |
136 | ||
137 | if (constraintExpr_isLit(e1) ) | |
138 | { | |
139 | if (constraintExpr_getValue(e1) == 0 ) | |
140 | { | |
141 | return TRUE; | |
142 | } | |
143 | } | |
144 | } | |
145 | return FALSE; | |
146 | } | |
147 | ||
148 | /* change expr + (o - expr) to (expr -expr) */ | |
149 | ||
749f175a | 150 | /*@only@*/ /*@notnull@*/ static constraintExpr removeZero (/*@only@*/ /*@returned@*/ constraintExpr expr) |
7c9c4a67 | 151 | { |
152 | constraintExpr expr1, expr2; | |
153 | ||
154 | constraintExpr temp; | |
155 | ||
156 | constraintExprBinaryOpKind op; | |
157 | ||
158 | constraintExprBinaryOpKind tempOp; | |
159 | ||
749f175a | 160 | llassert (expr != NULL); /* evans 2001-07-18 */ |
161 | ||
7c9c4a67 | 162 | if (!isZeroBinaryOp(expr) ) |
163 | return expr; | |
164 | ||
165 | ||
166 | expr1 = constraintExprData_binaryExprGetExpr1(expr->data); | |
167 | expr2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
168 | op = constraintExprData_binaryExprGetOp(expr->data); | |
169 | ||
7272a1c1 | 170 | llassert( constraintExpr_isBinaryExpr(expr2) ); |
171 | ||
7c9c4a67 | 172 | temp = constraintExprData_binaryExprGetExpr2 (expr2->data); |
173 | temp = constraintExpr_copy (temp); | |
174 | ||
175 | tempOp = constraintExprData_binaryExprGetOp (expr2->data); | |
176 | ||
0c91982e | 177 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 178 | op = tempOp; |
acfb6ad9 | 179 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 180 | { |
0c91982e | 181 | if (tempOp == BINARYOP_PLUS) |
acfb6ad9 | 182 | op = BINARYOP_MINUS; |
183 | else if (tempOp == BINARYOP_MINUS) | |
0c91982e | 184 | op = BINARYOP_PLUS; |
7c9c4a67 | 185 | else |
186 | BADEXIT; | |
187 | } | |
188 | else | |
189 | BADEXIT; | |
190 | ||
7c9c4a67 | 191 | expr->data = constraintExprData_binaryExprSetExpr2(expr->data, temp); |
192 | expr->data = constraintExprData_binaryExprSetOp(expr->data, op); | |
193 | ||
194 | return expr; | |
195 | } | |
196 | ||
3aaedf88 | 197 | |
749f175a | 198 | /*@only@*//*@notnull@*/ constraintExpr constraintExpr_propagateConstants (/*@only@*/ constraintExpr expr, |
3aaedf88 | 199 | /*@out@*/ bool * propagate, |
200 | /*@out@*/ int *literal) | |
201 | { | |
202 | constraintExpr expr1; | |
203 | constraintExpr expr2; | |
204 | bool propagate1, propagate2; | |
205 | int literal1, literal2; | |
d46ce6a4 | 206 | constraintExprBinaryOpKind op; |
3aaedf88 | 207 | |
208 | propagate1 = FALSE; | |
209 | propagate2 = FALSE; | |
210 | ||
211 | literal1 = 0; | |
212 | literal2 = 0; | |
213 | ||
214 | *propagate = FALSE; | |
215 | *literal = 0; | |
216 | ||
a779b61e | 217 | |
dc92450f | 218 | llassert (expr != NULL); |
3aaedf88 | 219 | |
b7b694d6 | 220 | /* we simplify unaryExpr elsewhere */ |
d46ce6a4 | 221 | if (expr->kind != binaryexpr) |
3aaedf88 | 222 | return expr; |
223 | ||
d46ce6a4 | 224 | op = constraintExprData_binaryExprGetOp (expr->data); |
3aaedf88 | 225 | |
bb7c2085 | 226 | DPRINTF((message("constraintExpr_propagateConstants: binaryexpr: %s", constraintExpr_unparse(expr) ) ) ); |
7c9c4a67 | 227 | |
228 | expr = removeZero(expr); | |
3aaedf88 | 229 | |
230 | expr1 = constraintExprData_binaryExprGetExpr1(expr->data); | |
231 | expr2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
232 | ||
d46ce6a4 | 233 | expr1 = constraintExpr_copy(expr1); |
234 | expr2 = constraintExpr_copy(expr2); | |
235 | ||
3aaedf88 | 236 | expr1 = constraintExpr_propagateConstants (expr1, &propagate1, &literal1); |
237 | expr2 = constraintExpr_propagateConstants (expr2, &propagate2, &literal2); | |
238 | ||
a779b61e | 239 | expr1 = removeZero(expr1); |
240 | expr2 = removeZero(expr2); | |
241 | ||
242 | ||
3aaedf88 | 243 | *propagate = propagate1 || propagate2; |
7c9c4a67 | 244 | |
0c91982e | 245 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 246 | *literal = literal1 + literal2; |
acfb6ad9 | 247 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 248 | *literal = literal1 - literal2; |
249 | else | |
250 | BADEXIT; | |
251 | ||
3aaedf88 | 252 | if ( constraintExpr_isLit (expr1) && constraintExpr_isLit (expr2) ) |
253 | { | |
b9904f57 | 254 | long t1, t2; |
3aaedf88 | 255 | t1 = constraintExpr_getValue (expr1); |
256 | t2 = constraintExpr_getValue (expr2); | |
7c9c4a67 | 257 | llassert(*propagate == FALSE); |
3aaedf88 | 258 | *propagate = FALSE; |
a8e557d3 | 259 | |
d46ce6a4 | 260 | constraintExpr_free (expr); |
261 | constraintExpr_free (expr1); | |
262 | constraintExpr_free (expr2); | |
263 | ||
0c91982e | 264 | if (op == BINARYOP_PLUS ) |
bb7c2085 | 265 | return (constraintExpr_makeIntLiteral ((t1+t2) )); |
acfb6ad9 | 266 | else if (op == BINARYOP_MINUS) |
bb7c2085 | 267 | return (constraintExpr_makeIntLiteral ((t1-t2) )); |
3aaedf88 | 268 | else |
d46ce6a4 | 269 | BADEXIT; |
3aaedf88 | 270 | } |
d46ce6a4 | 271 | |
272 | ||
3aaedf88 | 273 | if (constraintExpr_isLit (expr1) ) |
274 | { | |
3aaedf88 | 275 | *propagate = TRUE; |
d46ce6a4 | 276 | |
7c9c4a67 | 277 | *literal += constraintExpr_getValue (expr1); |
d46ce6a4 | 278 | |
0c91982e | 279 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 280 | { |
281 | constraintExpr_free(expr1); | |
282 | constraintExpr_free(expr); | |
283 | return expr2; | |
284 | } | |
acfb6ad9 | 285 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 286 | { |
a779b61e | 287 | |
7c9c4a67 | 288 | constraintExpr temp; |
289 | ||
290 | /* this is an ugly kludge to deal with not | |
291 | having a unary minus operation...*/ | |
a779b61e | 292 | |
7c9c4a67 | 293 | temp = constraintExpr_makeIntLiteral (0); |
294 | temp = constraintExpr_makeSubtractExpr (temp, expr2); | |
295 | ||
296 | constraintExpr_free(expr1); | |
297 | constraintExpr_free(expr); | |
0ec8d634 | 298 | |
299 | llassert (constraintExpr_isDefined(temp) ); | |
7c9c4a67 | 300 | return temp; |
301 | } | |
7272a1c1 | 302 | else |
303 | { | |
304 | BADBRANCH; /* evans 2001-07-18 */ | |
305 | } | |
3aaedf88 | 306 | } |
307 | ||
3aaedf88 | 308 | if (constraintExpr_isLit (expr2) ) |
309 | { | |
310 | *propagate = TRUE; | |
a8e557d3 | 311 | |
0c91982e | 312 | if ( op == BINARYOP_PLUS ) |
3aaedf88 | 313 | *literal += constraintExpr_getValue (expr2); |
acfb6ad9 | 314 | else if (op == BINARYOP_MINUS) |
3aaedf88 | 315 | *literal -= constraintExpr_getValue (expr2); |
7c9c4a67 | 316 | else |
317 | BADEXIT; | |
318 | ||
d46ce6a4 | 319 | |
320 | constraintExpr_free(expr2); | |
321 | constraintExpr_free(expr); | |
3aaedf88 | 322 | return expr1; |
323 | } | |
3aaedf88 | 324 | |
bb7c2085 | 325 | DPRINTF((message("constraintExpr_propagateConstants returning: %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 326 | |
d46ce6a4 | 327 | expr->data = constraintExprData_binaryExprSetExpr1 (expr->data, expr1); |
328 | expr->data = constraintExprData_binaryExprSetExpr2 (expr->data, expr2); | |
329 | ||
7c9c4a67 | 330 | expr = removeZero(expr); |
3aaedf88 | 331 | return expr; |
332 | } | |
333 | ||
749f175a | 334 | /*@notnull@*/ /*@only@*/ static constraintExpr constraintExpr_combineConstants (/*@only@*/ constraintExpr expr ) /*@modifies expr@*/ |
3aaedf88 | 335 | { |
336 | bool propagate; | |
337 | int literal; | |
338 | ||
bb7c2085 | 339 | DPRINTF ((message ("Before combine %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 340 | expr = constraintExpr_propagateConstants (expr, &propagate, &literal); |
341 | ||
342 | ||
343 | if (propagate) | |
344 | { | |
345 | constraintExpr ret; | |
346 | ||
347 | if (literal != 0) | |
348 | { | |
349 | ret = constraintExpr_makeBinaryOpConstraintExprIntLiteral (expr, literal); | |
350 | expr = ret; | |
351 | } | |
352 | } | |
bb7c2085 | 353 | DPRINTF ((message ("After combine %s", constraintExpr_unparse(expr) ) ) ); |
0ec8d634 | 354 | |
355 | llassert(constraintExpr_isDefined(expr) ); | |
356 | return expr; | |
3aaedf88 | 357 | } |
c3e695ff | 358 | |
dc92450f | 359 | /*@special@*/ |
abd7f895 | 360 | static /*@notnull@*/ constraintExpr constraintExpr_alloc (void) /*@post:isnull result->data@*/ |
3aaedf88 | 361 | { |
362 | constraintExpr ret; | |
363 | ret = dmalloc (sizeof (*ret) ); | |
364 | ret->kind = term; | |
365 | ret->data = NULL; | |
86d93ed3 | 366 | ret->ct = FALSE; |
367 | ret->origType = ctype_undefined; | |
3aaedf88 | 368 | return ret; |
369 | } | |
370 | ||
4ab867d6 | 371 | /*@only@*/ static constraintExprData copyExprData (/*@observer@*/ constraintExprData data, constraintExprKind kind) |
c3e695ff | 372 | { |
373 | constraintExprData ret; | |
374 | llassert(constraintExprData_isDefined(data)); | |
375 | ||
376 | switch (kind) | |
377 | { | |
378 | case binaryexpr: | |
379 | ret = constraintExprData_copyBinaryExpr(data); | |
380 | break; | |
381 | case unaryExpr: | |
382 | ret = constraintExprData_copyUnaryExpr(data); | |
383 | break; | |
384 | case term: | |
385 | ret = constraintExprData_copyTerm(data); | |
386 | break; | |
387 | default: | |
388 | BADEXIT; | |
389 | } | |
390 | return ret; | |
391 | } | |
3aaedf88 | 392 | |
393 | constraintExpr constraintExpr_copy (constraintExpr expr) | |
394 | { | |
395 | constraintExpr ret; | |
abd7f895 | 396 | ret = constraintExpr_alloc (); |
749f175a | 397 | |
398 | ||
399 | /*drl 03/02/2003 this shouldn't be used to copy a null | |
400 | expression but handle things cleanly if it is*/ | |
401 | llassert (!constraintExpr_isUndefined(expr) ); | |
402 | ||
403 | if (constraintExpr_isUndefined(expr) ) | |
404 | { | |
405 | return constraintExpr_undefined; | |
406 | } | |
407 | ||
3aaedf88 | 408 | ret->kind = expr->kind; |
c3e695ff | 409 | |
410 | ret->data = copyExprData (expr->data, expr->kind); | |
86d93ed3 | 411 | ret->ct = expr->ct; |
412 | ret->origType = expr->origType; | |
3aaedf88 | 413 | return ret; |
414 | } | |
415 | ||
416 | ||
28bf4b0b | 417 | /*@only@*/ static constraintExpr oldconstraintExpr_makeTermExprNode ( /*@dependent@*/ exprNode e) |
3aaedf88 | 418 | { |
419 | constraintExpr ret; | |
420 | constraintTerm t; | |
421 | ret = constraintExpr_alloc(); | |
422 | ret->kind = term; | |
423 | ret->data = dmalloc (sizeof *(ret->data) ); | |
424 | t = constraintTerm_makeExprNode (e); | |
425 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 426 | ret->ct = FALSE; |
427 | ret->origType = ctype_undefined; | |
428 | ||
3aaedf88 | 429 | return ret; |
430 | } | |
431 | ||
0ec8d634 | 432 | /*@access exprNode@*/ |
28bf4b0b | 433 | constraintExpr constraintExpr_makeExprNode (exprNode e) |
3aaedf88 | 434 | { |
435 | sRef s; | |
436 | constraintExpr ret, ce1, ce2; | |
437 | exprData data; | |
438 | exprNode t, t1, t2; | |
439 | lltok tok; | |
440 | ||
6317f163 | 441 | if (exprNode_isUndefined (e)) |
442 | { | |
443 | return constraintExpr_undefined; | |
444 | } | |
3aaedf88 | 445 | |
446 | data = e->edata; | |
447 | ||
448 | switch (e->kind) | |
449 | { | |
450 | case XPR_SIZEOF: | |
451 | t = exprData_getSingle (data); | |
f96fe483 | 452 | while (exprNode_isInParens (t) ) |
453 | { | |
454 | t = exprData_getUopNode (t->edata); | |
455 | } | |
3aaedf88 | 456 | s = exprNode_getSref (t); |
457 | if (sRef_isFixedArray(s) ) | |
458 | { | |
459 | int size; | |
460 | ||
dc92450f | 461 | size = (int) sRef_getArraySize(s); |
3aaedf88 | 462 | ret = constraintExpr_makeIntLiteral (size); |
463 | } | |
e5081f8c | 464 | else if (exprNode_isStringLiteral (t)) |
f96fe483 | 465 | { |
e5081f8c | 466 | cstring str = multiVal_forceString (exprNode_getValue(t)); |
467 | ret = constraintExpr_makeIntLiteral (size_toLong (cstring_length (str) + 1)); | |
f96fe483 | 468 | } |
3aaedf88 | 469 | else |
470 | { | |
c3e695ff | 471 | DPRINTF ((message ("could not determine the size of %s", exprNode_unparse (e) ) ) ); |
3aaedf88 | 472 | ret = oldconstraintExpr_makeTermExprNode (e); |
473 | } | |
474 | break; | |
475 | ||
476 | case XPR_OP: | |
c3e695ff | 477 | DPRINTF ((message ("Examining operation %s", exprNode_unparse (e) ) ) ); |
3aaedf88 | 478 | t1 = exprData_getOpA (data); |
479 | t2 = exprData_getOpB (data); | |
480 | tok = exprData_getOpTok (data); | |
481 | ||
482 | if (lltok_isPlus_Op (tok) || lltok_isMinus_Op (tok) ) | |
483 | { | |
484 | ce1 = constraintExpr_makeExprNode (t1); | |
485 | ce2 = constraintExpr_makeExprNode (t2); | |
486 | ret = constraintExpr_parseMakeBinaryOp (ce1, tok, ce2); | |
487 | } | |
86d93ed3 | 488 | |
c757ee29 | 489 | |
490 | /* define this block to activate the cheesy heuristic | |
491 | for handling sizeof expressions*/ | |
492 | #if 0 | |
493 | ||
86d93ed3 | 494 | |
c757ee29 | 495 | /* |
7edb30e6 | 496 | drl 8-11-001 |
497 | ||
498 | We handle expressions containing sizeof with the rule | |
499 | (sizeof type ) * Expr = Expr | |
500 | ||
501 | This is the total wronge way to do this but... | |
502 | it may be better than nothing | |
c757ee29 | 503 | */ |
86d93ed3 | 504 | |
505 | ||
506 | ||
7edb30e6 | 507 | else if (lltok_isMult(tok) ) |
3aaedf88 | 508 | { |
7edb30e6 | 509 | if ((t1->kind == XPR_SIZEOF) || (t1->kind == XPR_SIZEOFT) ) |
510 | { | |
511 | ret = constraintExpr_makeExprNode(t2); | |
512 | } | |
513 | else if ((t2->kind == XPR_SIZEOF) || (t2->kind == XPR_SIZEOFT) ) | |
514 | { | |
515 | ret = constraintExpr_makeExprNode(t1); | |
86d93ed3 | 516 | } |
7edb30e6 | 517 | else |
518 | { | |
519 | ret = oldconstraintExpr_makeTermExprNode (e); | |
520 | } | |
3aaedf88 | 521 | } |
c757ee29 | 522 | #endif |
523 | ||
7edb30e6 | 524 | else |
525 | ret = oldconstraintExpr_makeTermExprNode (e); | |
526 | ||
3aaedf88 | 527 | break; |
528 | case XPR_PARENS: | |
529 | t = exprData_getUopNode (data); | |
530 | ret = constraintExpr_makeExprNode (t); | |
531 | break; | |
532 | ||
533 | case XPR_PREOP: | |
534 | t = exprData_getUopNode (data); | |
535 | tok = exprData_getUopTok (data); | |
16c024b5 | 536 | if (lltok_isIncOp (tok)) |
3aaedf88 | 537 | { |
538 | constraintExpr temp; | |
539 | temp = constraintExpr_makeExprNode(t); | |
540 | ret = constraintExpr_makeIncConstraintExpr(temp); | |
541 | } | |
16c024b5 | 542 | else if (lltok_isDecOp (tok)) |
3aaedf88 | 543 | { |
544 | constraintExpr temp; | |
545 | temp = constraintExpr_makeExprNode(t); | |
546 | ret = constraintExpr_makeDecConstraintExpr(temp); | |
547 | } | |
548 | else | |
549 | ret = oldconstraintExpr_makeTermExprNode (e); | |
550 | break; | |
551 | ||
552 | case XPR_POSTOP: | |
553 | t = exprData_getUopNode (data); | |
554 | ret = constraintExpr_makeExprNode (t); | |
555 | break; | |
470b7798 | 556 | case XPR_CAST: |
557 | t = exprData_getCastNode (data); | |
558 | ret = constraintExpr_makeExprNode (t); | |
559 | break; | |
560 | case XPR_COMMA: | |
6317f163 | 561 | t = exprData_getPairA (data); |
c3e695ff | 562 | ret = constraintExpr_makeExprNode(t); |
c3e695ff | 563 | break; |
3aaedf88 | 564 | default: |
565 | ret = oldconstraintExpr_makeTermExprNode (e); | |
566 | ||
567 | } | |
568 | return ret; | |
569 | } | |
570 | ||
0ec8d634 | 571 | /*@noaccess exprNode@*/ |
572 | ||
573 | ||
574 | ||
575 | ||
b7b694d6 | 576 | /*@only@*/ constraintExpr constraintExpr_makeTermExprNode (/*@exposed@*/ exprNode e) |
3aaedf88 | 577 | { |
b7b694d6 | 578 | return oldconstraintExpr_makeTermExprNode(e); |
3aaedf88 | 579 | } |
580 | ||
28bf4b0b | 581 | static constraintExpr constraintExpr_makeTerm (/*@only@*/ constraintTerm t) |
920a3797 | 582 | { |
583 | constraintExpr ret; | |
584 | ||
585 | ret = constraintExpr_alloc(); | |
586 | ret->kind = term; | |
587 | ret->data = dmalloc (sizeof *(ret->data) ); | |
a779b61e | 588 | ret->data->term = NULL; |
920a3797 | 589 | ret->data = constraintExprData_termSetTerm (ret->data, t); |
86d93ed3 | 590 | ret->ct = FALSE; |
591 | ret->origType = ctype_undefined; | |
920a3797 | 592 | |
593 | return ret; | |
594 | } | |
3aaedf88 | 595 | |
28bf4b0b | 596 | constraintExpr constraintExpr_makeTermsRef (/*@temp@*/ sRef s) |
3aaedf88 | 597 | { |
598 | constraintExpr ret; | |
599 | constraintTerm t; | |
600 | ret = constraintExpr_alloc(); | |
601 | ret->kind = term; | |
602 | ret->data = dmalloc (sizeof *(ret->data) ); | |
603 | t = constraintTerm_makesRef (s); | |
604 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 605 | |
606 | ret->ct = FALSE; | |
607 | ret->origType = ctype_undefined; | |
608 | ||
3aaedf88 | 609 | return ret; |
610 | } | |
611 | ||
749f175a | 612 | /*@special@*/ /*@notnull@*/ static constraintExpr makeUnaryOpGeneric (void) /*@allocates result->data@*/ /*@defines result->kind@*/ |
3aaedf88 | 613 | { |
614 | constraintExpr ret; | |
615 | ret = constraintExpr_alloc(); | |
616 | ret->kind = unaryExpr; | |
ae133592 | 617 | ret->data = dmalloc (sizeof *(ret->data)); |
a779b61e | 618 | ret->data->unaryOp.expr = constraintExpr_undefined; |
3aaedf88 | 619 | return ret; |
620 | } | |
621 | ||
749f175a | 622 | /*@notnull@*/ /*@only@*/ static constraintExpr constraintExpr_makeUnaryOpConstraintExpr (/*@only@*/ constraintExpr cexpr) |
3aaedf88 | 623 | { |
624 | constraintExpr ret; | |
920a3797 | 625 | ret = makeUnaryOpGeneric(); |
a8e557d3 | 626 | |
627 | /*@-uniondef@*/ | |
628 | /*@-compdef@*/ | |
b7b694d6 | 629 | ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr); |
630 | ret->data = constraintExprData_unaryExprSetOp (ret->data, UNARYOP_UNDEFINED); | |
631 | ||
3aaedf88 | 632 | return ret; |
b7b694d6 | 633 | |
a8e557d3 | 634 | /*@=compdef@*/ |
c3e695ff | 635 | /*@=uniondef@*/ |
3aaedf88 | 636 | } |
637 | ||
920a3797 | 638 | |
ae133592 | 639 | /*@only@*/ /*@notnull@*/ static constraintExpr |
640 | constraintExpr_makeUnaryOp (/*@only@*/ constraintExpr cexpr, constraintExprUnaryOpKind Op) | |
920a3797 | 641 | { |
642 | constraintExpr ret; | |
643 | ret = makeUnaryOpGeneric(); | |
644 | ||
645 | ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr); | |
646 | ret->data = constraintExprData_unaryExprSetOp (ret->data, Op); | |
647 | ||
86d93ed3 | 648 | ret->ct = FALSE; |
649 | ret->origType = ctype_undefined; | |
650 | ||
920a3797 | 651 | return ret; |
652 | } | |
653 | ||
749f175a | 654 | /*@only@*/ /*@notnull@*/ |
4ab867d6 | 655 | static constraintExpr constraintExpr_makeUnaryOpExprNode (/*@exposed@*/ exprNode expr) |
3aaedf88 | 656 | { |
657 | constraintExpr ret; | |
658 | constraintExpr sub; | |
659 | sub = constraintExpr_makeExprNode (expr); | |
660 | ret = constraintExpr_makeUnaryOpConstraintExpr(sub); | |
d46ce6a4 | 661 | |
3aaedf88 | 662 | return ret; |
663 | } | |
664 | ||
749f175a | 665 | /*@only@*/ /*@notnull@*/ |
666 | static constraintExpr constraintExpr_makeMaxSetConstraintExpr (/*@only@*/ constraintExpr c) | |
667 | { | |
668 | constraintExpr ret; | |
669 | ret = constraintExpr_makeUnaryOp (c, MAXSET); | |
670 | return ret; | |
671 | } | |
3aaedf88 | 672 | |
673 | ||
749f175a | 674 | /*@only@*/ /*@notnull@*/ |
28bf4b0b | 675 | static constraintExpr constraintExpr_makeSRefUnaryOp (/*@temp@*/ /*@observer@*/ sRef s, constraintExprUnaryOpKind op) |
3aaedf88 | 676 | { |
677 | constraintExpr ret; | |
678 | constraintExpr t; | |
679 | ||
680 | t = constraintExpr_makeTermsRef (s); | |
681 | ret = constraintExpr_makeUnaryOpConstraintExpr (t); | |
682 | ret->data = constraintExprData_unaryExprSetOp (ret->data, op); | |
d46ce6a4 | 683 | |
3aaedf88 | 684 | return ret; |
685 | } | |
686 | ||
bb25bea6 | 687 | /*@only@*/ |
28bf4b0b | 688 | constraintExpr constraintExpr_makeSRefMaxRead( sRef s) |
470b7798 | 689 | { |
690 | return (constraintExpr_makeSRefUnaryOp (s, MAXREAD) ); | |
691 | } | |
692 | ||
bb25bea6 | 693 | /*@only@*/ |
28bf4b0b | 694 | constraintExpr constraintExpr_makeSRefMaxset ( sRef s) |
3aaedf88 | 695 | { |
696 | return (constraintExpr_makeSRefUnaryOp (s, MAXSET) ); | |
697 | } | |
698 | ||
bb25bea6 | 699 | /*@only@*/ |
3aaedf88 | 700 | constraintExpr constraintExpr_parseMakeUnaryOp (lltok op, constraintExpr cexpr) |
701 | { | |
702 | constraintExpr ret; | |
703 | ret = constraintExpr_makeUnaryOpConstraintExpr ( cexpr); | |
704 | ||
80489f0a | 705 | switch (lltok_getTok (op)) |
3aaedf88 | 706 | { |
707 | case QMAXSET: | |
708 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXSET); | |
709 | break; | |
710 | case QMAXREAD: | |
711 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD); | |
712 | break; | |
713 | default: | |
2f2892c2 | 714 | llfatalbug (message ("Unhandled operation in constraint: %s", lltok_unparse (op))); |
3aaedf88 | 715 | } |
716 | return ret; | |
717 | } | |
718 | ||
bb25bea6 | 719 | /*@only@*/ |
4ab867d6 | 720 | constraintExpr constraintExpr_makeMaxSetExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 721 | { |
722 | constraintExpr ret; | |
723 | ret = constraintExpr_makeExprNode (expr); | |
724 | ||
725 | ret = constraintExpr_makeMaxSetConstraintExpr (ret); | |
726 | ||
dc92450f | 727 | llassert (ret != NULL); |
3aaedf88 | 728 | return ret; |
729 | } | |
730 | ||
bb25bea6 | 731 | /*@only@*/ |
3aaedf88 | 732 | constraintExpr constraintExpr_makeMaxReadExpr (exprNode expr) |
733 | { | |
734 | constraintExpr ret; | |
735 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
736 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD); | |
737 | return ret; | |
738 | } | |
739 | ||
15b3d2b2 | 740 | # if 0 |
bb25bea6 | 741 | /*@only@*/ |
28bf4b0b | 742 | /*@unused@*/ static constraintExpr constraintExpr_makeMinSetExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 743 | { |
744 | constraintExpr ret; | |
745 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
746 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MINSET); | |
747 | return ret; | |
748 | } | |
749 | ||
bb25bea6 | 750 | /*@only@*/ |
28bf4b0b | 751 | /*@unused@*/ static constraintExpr constraintExpr_makeMinReadExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 752 | { |
753 | constraintExpr ret; | |
754 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
755 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MINREAD); | |
756 | return ret; | |
757 | } | |
15b3d2b2 | 758 | # endif |
3aaedf88 | 759 | |
bb25bea6 | 760 | /*@only@*/ |
4ab867d6 | 761 | constraintExpr constraintExpr_makeValueExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 762 | { |
763 | constraintExpr ret; | |
764 | ret = constraintExpr_makeExprNode (expr); | |
765 | return ret; | |
766 | } | |
767 | ||
749f175a | 768 | /*@only@*/ /*@notnull@*/ |
b9904f57 | 769 | constraintExpr constraintExpr_makeIntLiteral (long i) |
3aaedf88 | 770 | { |
771 | constraintExpr ret; | |
772 | constraintTerm t; | |
773 | ret = constraintExpr_alloc(); | |
774 | ret->kind = term; | |
775 | ret->data = dmalloc (sizeof *(ret->data) ); | |
776 | t = constraintTerm_makeIntLiteral (i); | |
777 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
86d93ed3 | 778 | |
779 | ret->ct = FALSE; | |
780 | ret->origType = ctype_undefined; | |
781 | ||
3aaedf88 | 782 | return ret; |
783 | } | |
784 | ||
c3e695ff | 785 | /* |
3aaedf88 | 786 | constraintExpr constraintExpr_makeValueInt (int i) |
787 | { | |
788 | return constraintExpr_makeIntLiteral (i); | |
789 | } | |
c3e695ff | 790 | */ |
3aaedf88 | 791 | |
749f175a | 792 | /*@only@*/ /*@notnull@*/ |
28bf4b0b | 793 | /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void) |
794 | /*@allocates result->data @*/ /*@sets result->kind @*/ | |
3aaedf88 | 795 | { |
796 | constraintExpr ret; | |
797 | ret = constraintExpr_alloc(); | |
798 | ret->kind = binaryexpr; | |
799 | ret->data = dmalloc ( sizeof *(ret->data) ); | |
a779b61e | 800 | |
801 | ret->data->binaryOp.expr1 = constraintExpr_undefined; | |
802 | ret->data->binaryOp.expr2 = constraintExpr_undefined; | |
803 | ||
3aaedf88 | 804 | return ret; |
805 | } | |
806 | ||
807 | ||
749f175a | 808 | static /*@notnull@*/ /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExpr (/*@only@*/constraintExpr expr1, /*@only@*/ constraintExpr expr2) |
3aaedf88 | 809 | |
810 | { | |
811 | constraintExpr ret; | |
d46ce6a4 | 812 | |
3aaedf88 | 813 | ret = constraintExpr_makeBinaryOp(); |
814 | ret->data = constraintExprData_binaryExprSetExpr1 (ret->data, expr1); | |
815 | ret->data = constraintExprData_binaryExprSetExpr2 (ret->data, expr2); | |
84c9ffbf | 816 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED); |
86d93ed3 | 817 | |
818 | ret->ct = FALSE; | |
819 | ret->origType = ctype_undefined; | |
820 | ||
3aaedf88 | 821 | return ret; |
822 | } | |
823 | ||
bb25bea6 | 824 | /*@only@*/ |
d46ce6a4 | 825 | constraintExpr constraintExpr_parseMakeBinaryOp (/*@only@*/ constraintExpr expr1, lltok op,/*@only@*/ constraintExpr expr2) |
3aaedf88 | 826 | { |
827 | constraintExpr ret; | |
828 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2); | |
80489f0a | 829 | |
830 | if (lltok_getTok (op) == TPLUS) | |
831 | { | |
832 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); | |
833 | } | |
834 | else if (lltok_getTok (op) == TMINUS) | |
835 | { | |
836 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS); | |
837 | } | |
838 | else | |
839 | { | |
840 | llassert (FALSE); | |
841 | } | |
842 | ||
3aaedf88 | 843 | return ret; |
844 | } | |
845 | ||
15b3d2b2 | 846 | # if 0 |
bb25bea6 | 847 | /*@only@*/ |
28bf4b0b | 848 | /*@unused@*/ static constraintExpr constraintExpr_makeBinaryOpExprNode (/*@exposed@*/ exprNode expr1, /*@exposed@*/ exprNode expr2) |
3aaedf88 | 849 | { |
850 | constraintExpr ret; | |
851 | constraintExpr sub1, sub2; | |
852 | sub1 = constraintExpr_makeTermExprNode (expr1); | |
853 | sub2 = constraintExpr_makeTermExprNode (expr2); | |
854 | ret = constraintExpr_makeBinaryOpConstraintExpr(sub1, sub2); | |
855 | return ret; | |
856 | } | |
15b3d2b2 | 857 | # endif |
3aaedf88 | 858 | |
749f175a | 859 | static /*@notnull@*/ /*@only@*/ |
d46ce6a4 | 860 | constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/ constraintExpr expr, int literal) |
3aaedf88 | 861 | { |
862 | constraintExpr ret; | |
863 | constraintExpr constExpr; | |
864 | ||
865 | constExpr = constraintExpr_makeIntLiteral (literal); | |
866 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, constExpr); | |
0c91982e | 867 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 868 | return ret; |
869 | } | |
870 | ||
bb25bea6 | 871 | /*@only@*/ |
d46ce6a4 | 872 | constraintExpr constraintExpr_makeDecConstraintExpr (/*@only@*/constraintExpr expr) |
3aaedf88 | 873 | { |
874 | constraintExpr ret; | |
875 | constraintExpr inc; | |
876 | ||
877 | inc = constraintExpr_makeIntLiteral (1); | |
878 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc); | |
acfb6ad9 | 879 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS); |
3aaedf88 | 880 | return ret; |
881 | } | |
882 | ||
2934b455 | 883 | |
884 | /*@only@*/ constraintExpr constraintExpr_makeSubtractExpr (/*@only@*/ constraintExpr expr, /*@only@*/ constraintExpr addent) | |
885 | { | |
28bf4b0b | 886 | constraintExpr ret; |
2934b455 | 887 | |
bb7c2085 | 888 | DPRINTF ((message ("Making subtract expression") ) ); |
2934b455 | 889 | |
28bf4b0b | 890 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent); |
acfb6ad9 | 891 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_MINUS); |
28bf4b0b | 892 | return ret; |
2934b455 | 893 | } |
894 | ||
bb25bea6 | 895 | /*@only@*/ |
2934b455 | 896 | constraintExpr constraintExpr_makeAddExpr (/*@only@*/ |
bb25bea6 | 897 | constraintExpr expr, /*@only@*/ |
2934b455 | 898 | constraintExpr addent) |
3aaedf88 | 899 | { |
28bf4b0b | 900 | constraintExpr ret; |
3aaedf88 | 901 | |
bb7c2085 | 902 | DPRINTF ((message ("Doing addTerm simplification") ) ); |
3aaedf88 | 903 | |
28bf4b0b | 904 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent); |
0c91982e | 905 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_PLUS); |
28bf4b0b | 906 | return ret; |
3aaedf88 | 907 | } |
908 | ||
2934b455 | 909 | |
bb25bea6 | 910 | /*@only@*/ |
d46ce6a4 | 911 | constraintExpr constraintExpr_makeIncConstraintExpr (/*@only@*/ constraintExpr expr) |
3aaedf88 | 912 | { |
913 | constraintExpr ret; | |
914 | constraintExpr inc; | |
915 | ||
916 | inc = constraintExpr_makeIntLiteral (1); | |
917 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc); | |
0c91982e | 918 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 919 | return ret; |
920 | } | |
921 | ||
bb25bea6 | 922 | /*@only@*/ |
923 | static cstring constraintExprUnaryOpKind_print (constraintExprUnaryOpKind op) | |
3aaedf88 | 924 | { |
925 | switch (op) | |
926 | { | |
927 | case MAXSET: | |
03d670b6 | 928 | return message("maxSet"); |
3aaedf88 | 929 | case MINSET: |
03d670b6 | 930 | return message("minSet"); |
3aaedf88 | 931 | case MAXREAD: |
03d670b6 | 932 | return message("maxRead"); |
3aaedf88 | 933 | case MINREAD: |
03d670b6 | 934 | return message("minRead"); |
3aaedf88 | 935 | default: |
936 | llassert(FALSE); | |
937 | return message ("<(Unary OP OTHER>"); | |
938 | } | |
939 | } | |
940 | ||
941 | ||
bb25bea6 | 942 | /*@only@*/ |
943 | static cstring constraintExprBinaryOpKind_print (constraintExprBinaryOpKind op) | |
3aaedf88 | 944 | { |
945 | ||
946 | switch (op) | |
947 | { | |
0c91982e | 948 | case BINARYOP_PLUS: |
3aaedf88 | 949 | return message("+"); |
acfb6ad9 | 950 | case BINARYOP_MINUS: |
3aaedf88 | 951 | return message("-"); |
dc92450f | 952 | |
953 | default: | |
954 | llassert(FALSE); | |
955 | return message ("<binary OP Unknown>"); | |
3aaedf88 | 956 | } |
3aaedf88 | 957 | } |
958 | ||
959 | bool constraintExpr_similar (constraintExpr expr1, constraintExpr expr2) | |
960 | { | |
961 | constraintExprKind kind; | |
962 | ||
963 | llassert (expr1 != NULL); | |
964 | llassert (expr2 != NULL); | |
965 | if (expr1->kind != expr2->kind) | |
966 | return FALSE; | |
967 | ||
968 | kind = expr1->kind; | |
969 | ||
970 | switch (kind) | |
971 | { | |
972 | case term: | |
973 | return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data), | |
974 | constraintExprData_termGetTerm(expr2->data) ); | |
c3e695ff | 975 | /*@notreached@*/ break; |
3aaedf88 | 976 | |
977 | case unaryExpr: | |
978 | if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) ) | |
979 | return FALSE; | |
980 | ||
981 | return (constraintExpr_similar ( | |
982 | constraintExprData_unaryExprGetExpr (expr1->data), | |
983 | constraintExprData_unaryExprGetExpr (expr2->data) | |
984 | )); | |
985 | ||
986 | case binaryexpr: | |
987 | if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) ) | |
988 | return FALSE; | |
989 | ||
990 | if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr1 (expr1->data), | |
991 | constraintExprData_binaryExprGetExpr1 (expr2->data)) ) | |
992 | return FALSE; | |
993 | ||
994 | if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr2 (expr1->data), | |
995 | constraintExprData_binaryExprGetExpr2 (expr2->data)) ) | |
996 | return FALSE; | |
997 | else | |
998 | return TRUE; | |
999 | /*@notreached@*/ | |
1000 | break; | |
1001 | ||
1002 | default: | |
1003 | llassert(FALSE); | |
1004 | return FALSE; | |
1005 | } | |
1006 | /*@notreached@*/ | |
1007 | return FALSE; | |
1008 | } | |
1009 | ||
1010 | bool constraintExpr_same (constraintExpr expr1, constraintExpr expr2) | |
1011 | { | |
1012 | constraintExprKind kind; | |
1013 | ||
1014 | llassert (expr1 != NULL); | |
1015 | llassert (expr2 != NULL); | |
1016 | if (expr1->kind != expr2->kind) | |
1017 | return FALSE; | |
1018 | ||
1019 | kind = expr1->kind; | |
1020 | ||
1021 | switch (kind) | |
1022 | { | |
1023 | case term: | |
1024 | return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data), | |
1025 | constraintExprData_termGetTerm(expr2->data) ); | |
dc92450f | 1026 | /*@notreached@*/ break; |
3aaedf88 | 1027 | |
1028 | case unaryExpr: | |
1029 | if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) ) | |
1030 | return FALSE; | |
1031 | ||
1032 | return (constraintExpr_same ( | |
1033 | constraintExprData_unaryExprGetExpr (expr1->data), | |
1034 | constraintExprData_unaryExprGetExpr (expr2->data) | |
1035 | )); | |
1036 | ||
1037 | ||
1038 | case binaryexpr: | |
1039 | if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) ) | |
1040 | return FALSE; | |
1041 | ||
1042 | if (! constraintExpr_same (constraintExprData_binaryExprGetExpr1 (expr1->data), | |
1043 | constraintExprData_binaryExprGetExpr1 (expr2->data)) ) | |
1044 | return FALSE; | |
1045 | ||
1046 | if (! constraintExpr_same (constraintExprData_binaryExprGetExpr2 (expr1->data), | |
1047 | constraintExprData_binaryExprGetExpr2 (expr2->data)) ) | |
1048 | return FALSE; | |
1049 | else | |
1050 | return TRUE; | |
dc92450f | 1051 | /*@notreached@*/ break; |
3aaedf88 | 1052 | |
1053 | default: | |
1054 | llassert(FALSE); | |
1055 | return FALSE; | |
1056 | } | |
1057 | ||
1058 | /*@notreached@*/ | |
1059 | BADEXIT; | |
1060 | } | |
1061 | ||
9a48d98c | 1062 | bool |
1063 | constraintExpr_search (/*@observer@*/ constraintExpr c, | |
1064 | /*@observer@*/ constraintExpr old) | |
3aaedf88 | 1065 | { |
1066 | bool ret = FALSE; | |
1067 | constraintExprKind kind; | |
1068 | constraintExpr temp; | |
1069 | ||
9a48d98c | 1070 | if (constraintExpr_similar (c, old)) |
3aaedf88 | 1071 | { |
9a48d98c | 1072 | DPRINTF (("Found %q", constraintExpr_unparse (old))); |
3aaedf88 | 1073 | return TRUE; |
1074 | } | |
1075 | ||
749f175a | 1076 | llassert (constraintExpr_isDefined (c) && constraintExpr_isDefined(old) ); |
1077 | ||
1078 | if ( !(constraintExpr_isDefined (c) && constraintExpr_isDefined(old) ) ) | |
1079 | return FALSE; | |
1080 | ||
3aaedf88 | 1081 | kind = c->kind; |
1082 | ||
1083 | switch (kind) | |
1084 | { | |
1085 | case term: | |
1086 | break; | |
1087 | case unaryExpr: | |
1088 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
1089 | ret = ret || constraintExpr_search (temp, old); | |
1090 | break; | |
1091 | case binaryexpr: | |
1092 | ||
1093 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
1094 | ret = ret || constraintExpr_search(temp, old); | |
1095 | ||
1096 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
1097 | ret = ret || constraintExpr_search(temp, old); | |
1098 | break; | |
1099 | default: | |
1100 | llassert(FALSE); | |
1101 | } | |
1102 | return ret; | |
1103 | ||
1104 | } | |
1105 | ||
1106 | ||
ae133592 | 1107 | /*@only@*/ constraintExpr |
1108 | constraintExpr_searchandreplace (/*@only@*/ /*@unique@*/ constraintExpr c, /*@temp@*/ constraintExpr old, | |
1109 | /*@temp@*/ constraintExpr newExpr ) | |
3aaedf88 | 1110 | { |
1111 | constraintExprKind kind; | |
1112 | constraintExpr temp; | |
86d93ed3 | 1113 | constraintExpr ret; |
749f175a | 1114 | |
ae133592 | 1115 | llassert (constraintExpr_isDefined (newExpr) && (constraintExpr_isDefined (old) && constraintExpr_isDefined(c) ) ); |
3aaedf88 | 1116 | |
ae133592 | 1117 | if (constraintExpr_similar (c, old)) |
3aaedf88 | 1118 | { |
ae133592 | 1119 | ctype newType = ctype_unknown; |
1120 | ctype cType = ctype_unknown; | |
86d93ed3 | 1121 | |
1122 | ret = constraintExpr_copy (newExpr); | |
749f175a | 1123 | llassert(constraintExpr_isDefined(ret) ); |
1124 | /*drl if newExpr != NULL then ret will != NULL*/ | |
1125 | ||
ae133592 | 1126 | DPRINTF (("Replacing %s with %s in %s", |
1127 | constraintExpr_unparse (old), constraintExpr_unparse (newExpr), | |
1128 | constraintExpr_unparse (c))); | |
86d93ed3 | 1129 | |
ae133592 | 1130 | if (constraintExpr_canGetCType (c) && constraintExpr_canGetCType (newExpr)) |
86d93ed3 | 1131 | { |
1132 | cType = constraintExpr_getCType(c); | |
ae133592 | 1133 | newType = constraintExpr_getCType (newExpr); |
86d93ed3 | 1134 | |
ae133592 | 1135 | if (ctype_match (cType,newType)) |
86d93ed3 | 1136 | { |
ae133592 | 1137 | DPRINTF (("constraintExpr_searchandreplace: replacing " |
1138 | " %s with type %s with %s with type %s", | |
1139 | constraintExpr_unparse (c), ctype_unparse(cType), | |
1140 | constraintExpr_unparse (newExpr), ctype_unparse(newType))); | |
86d93ed3 | 1141 | |
1142 | ret->ct = TRUE; | |
1143 | ret->origType = cType; | |
ae133592 | 1144 | DPRINTF (("Type: %s", ctype_unparse (constraintExpr_getCType (ret)))); |
86d93ed3 | 1145 | } |
1146 | } | |
ae133592 | 1147 | |
1148 | if (constraintExpr_hasMaxSet (c)) | |
86d93ed3 | 1149 | { |
ae133592 | 1150 | if (constraintExpr_hasTypeChange (c)) |
1151 | { | |
1152 | fileloc loc = constraintExpr_loc (c); | |
1153 | DPRINTF (("constraintExpr_searchandreplace: encountered " | |
1154 | "MaxSet with changed type %s ", | |
1155 | constraintExpr_unparse (c))); | |
1156 | ||
1157 | if (c->kind == unaryExpr) | |
1158 | { | |
1159 | constraintExpr ce = constraintExprData_unaryExprGetExpr (c->data); | |
1160 | DPRINTF (("Its a unary! %s / %s", | |
1161 | ctype_unparse (constraintExpr_getCType (ce)), | |
1162 | ctype_unparse (constraintExpr_getOrigType (ce)))); | |
1163 | ret = constraintExpr_adjustMaxSetForCast (ret, constraintExpr_getCType (ce), | |
1164 | constraintExpr_getOrigType (ce), | |
1165 | loc); | |
1166 | } | |
1167 | else | |
1168 | { | |
1169 | /* fix this with a conversation */ | |
1170 | DPRINTF (("Types: %s / %s", ctype_unparse (newType), ctype_unparse (cType))); | |
1171 | ret = constraintExpr_adjustMaxSetForCast (ret, constraintExpr_getCType (c), | |
1172 | constraintExpr_getOrigType(c), | |
1173 | loc); | |
1174 | } | |
1175 | } | |
86d93ed3 | 1176 | } |
ae133592 | 1177 | |
1178 | constraintExpr_free (c); | |
1179 | DPRINTF (("ret: %s", constraintExpr_unparse (ret))); | |
86d93ed3 | 1180 | return ret; |
3aaedf88 | 1181 | } |
1182 | ||
1183 | kind = c->kind; | |
1184 | ||
1185 | switch (kind) | |
1186 | { | |
1187 | case term: | |
1188 | break; | |
1189 | case unaryExpr: | |
ae133592 | 1190 | DPRINTF (("Making unary expression!")); |
3aaedf88 | 1191 | temp = constraintExprData_unaryExprGetExpr (c->data); |
ae133592 | 1192 | temp = constraintExpr_copy (temp); |
28bf4b0b | 1193 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1194 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); |
1195 | break; | |
1196 | case binaryexpr: | |
ae133592 | 1197 | DPRINTF (("Making binary expression!")); |
3aaedf88 | 1198 | temp = constraintExprData_binaryExprGetExpr1 (c->data); |
ae133592 | 1199 | temp = constraintExpr_copy (temp); |
28bf4b0b | 1200 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1201 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); |
1202 | ||
1203 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
ae133592 | 1204 | temp = constraintExpr_copy (temp); |
28bf4b0b | 1205 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1206 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); |
1207 | break; | |
1208 | default: | |
ae133592 | 1209 | llassert (FALSE); |
3aaedf88 | 1210 | } |
ae133592 | 1211 | |
1212 | DPRINTF (("ret: %s", constraintExpr_unparse (c))); | |
3aaedf88 | 1213 | return c; |
3aaedf88 | 1214 | } |
1215 | ||
749f175a | 1216 | /*@notnull@*/ static constraintExpr constraintExpr_simplifyChildren (/*@returned@*/ /*@notnull@*/ constraintExpr c) |
3aaedf88 | 1217 | { |
1218 | constraintExprKind kind; | |
1219 | constraintExpr temp; | |
1220 | ||
1221 | kind = c->kind; | |
1222 | ||
1223 | switch (kind) | |
1224 | { | |
1225 | case term: | |
1226 | break; | |
1227 | case unaryExpr: | |
1228 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1229 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1230 | temp = constraintExpr_simplify (temp); |
1231 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); | |
1232 | break; | |
1233 | case binaryexpr: | |
c3e695ff | 1234 | DPRINTF((message("constraintExpr_simplfiyChildren: simplify binary expression: %s",constraintExpr_unparse(c) ) ) ); |
3aaedf88 | 1235 | temp = constraintExprData_binaryExprGetExpr1 (c->data); |
d46ce6a4 | 1236 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1237 | temp = constraintExpr_simplify (temp); |
1238 | ||
1239 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); | |
1240 | ||
1241 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1242 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1243 | temp = constraintExpr_simplify (temp); |
1244 | ||
1245 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); | |
1246 | break; | |
1247 | default: | |
1248 | llassert(FALSE); | |
1249 | } | |
1250 | return c; | |
1251 | ||
1252 | } | |
1253 | ||
1254 | ||
28bf4b0b | 1255 | constraintExpr constraintExpr_setFileloc (/*@returned@*/ constraintExpr c, fileloc loc) /*@modifies c @*/ |
3aaedf88 | 1256 | { |
1257 | constraintTerm t; | |
1258 | constraintExpr temp; | |
1259 | ||
dc92450f | 1260 | llassert(c != NULL); |
3aaedf88 | 1261 | |
1262 | switch (c->kind) | |
1263 | { | |
1264 | case term: | |
1265 | t = constraintExprData_termGetTerm (c->data); | |
d46ce6a4 | 1266 | t = constraintTerm_copy(t); |
3aaedf88 | 1267 | t = constraintTerm_setFileloc (t, loc); |
1268 | c->data = constraintExprData_termSetTerm (c->data, t); | |
1269 | break; | |
1270 | case binaryexpr: | |
1271 | ||
1272 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
d46ce6a4 | 1273 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1274 | temp = constraintExpr_setFileloc (temp, loc); |
1275 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); | |
1276 | ||
1277 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1278 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1279 | temp = constraintExpr_setFileloc (temp, loc); |
1280 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); | |
1281 | break; | |
1282 | case unaryExpr: | |
1283 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1284 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1285 | temp = constraintExpr_setFileloc (temp, loc); |
1286 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); | |
1287 | break; | |
1288 | } | |
1289 | return c; | |
1290 | } | |
1291 | ||
749f175a | 1292 | static /*@only@*/ constraintExpr constraintExpr_simplifybinaryExpr (/*@only@*/ /*@notnull@*/ constraintExpr c) |
3aaedf88 | 1293 | { |
1294 | constraintExpr e1, e2; | |
7c9c4a67 | 1295 | constraintExprBinaryOpKind op; |
1296 | ||
3aaedf88 | 1297 | e1 = constraintExprData_binaryExprGetExpr1 (c->data); |
1298 | e2 = constraintExprData_binaryExprGetExpr2 (c->data); | |
1299 | ||
1300 | if (constraintExpr_canGetValue (e1) && constraintExpr_canGetValue(e2) ) | |
1301 | { | |
b9904f57 | 1302 | long i; |
3aaedf88 | 1303 | |
1304 | i = constraintExpr_getValue(e1) + constraintExpr_getValue (e2); | |
d46ce6a4 | 1305 | constraintExpr_free(c); |
3aaedf88 | 1306 | c = constraintExpr_makeIntLiteral (i); |
3aaedf88 | 1307 | } |
7c9c4a67 | 1308 | else |
1309 | { | |
1310 | op = constraintExprData_binaryExprGetOp (c->data); | |
acfb6ad9 | 1311 | if (op == BINARYOP_MINUS) |
7c9c4a67 | 1312 | if (constraintExpr_similar(e1, e2) ) |
1313 | { | |
1314 | constraintExpr_free(c); | |
1315 | c = constraintExpr_makeIntLiteral (0); | |
1316 | } | |
1317 | } | |
1318 | ||
3aaedf88 | 1319 | return c; |
1320 | } | |
1321 | ||
bb25bea6 | 1322 | /* |
1323 | this thing takes the lexpr and expr of a constraint and modifies lexpr | |
1324 | and returns a (possiblly new) value for expr | |
1325 | */ | |
1326 | /* 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 */ | |
1327 | ||
1328 | /* the approach is a little Kludgy but seems to work. I should probably use something cleaner at some point ... */ | |
1329 | ||
1330 | ||
1331 | /*@only@*/ constraintExpr constraintExpr_solveBinaryExpr (constraintExpr lexpr, /*@only@*/ constraintExpr expr) | |
3aaedf88 | 1332 | { |
1333 | constraintExpr expr1, expr2; | |
1334 | constraintExprBinaryOpKind op; | |
749f175a | 1335 | |
1336 | llassert(constraintExpr_isDefined (lexpr) && constraintExpr_isDefined (expr) ); | |
3aaedf88 | 1337 | |
1338 | if (lexpr->kind != binaryexpr) | |
1339 | return expr; | |
1340 | ||
1341 | expr2 = constraintExprData_binaryExprGetExpr2 (lexpr->data); | |
1342 | expr1 = constraintExprData_binaryExprGetExpr1 (lexpr->data); | |
bb25bea6 | 1343 | |
3aaedf88 | 1344 | op = constraintExprData_binaryExprGetOp (lexpr->data); |
1345 | ||
bb25bea6 | 1346 | expr1 = constraintExpr_copy(expr1); |
1347 | expr2 = constraintExpr_copy(expr2); | |
749f175a | 1348 | |
1349 | llassert(constraintExpr_isDefined (expr1) && constraintExpr_isDefined (expr2) ); | |
1350 | ||
b7b694d6 | 1351 | /* drl possible problem : warning make sure this works */ |
1352 | ||
1353 | lexpr->kind = expr1->kind; | |
1354 | sfree (lexpr->data); | |
1355 | ||
1356 | lexpr->data = copyExprData (expr1->data, expr1->kind); | |
1357 | constraintExpr_free(expr1); | |
1358 | ||
0c91982e | 1359 | if (op == BINARYOP_PLUS) |
b7b694d6 | 1360 | expr = constraintExpr_makeSubtractExpr (expr, expr2); |
acfb6ad9 | 1361 | else if (op == BINARYOP_MINUS) |
b7b694d6 | 1362 | expr = constraintExpr_makeAddExpr (expr, expr2); |
1363 | else | |
1364 | BADEXIT; | |
1365 | ||
1366 | ||
1367 | return expr; | |
bb25bea6 | 1368 | |
c3e695ff | 1369 | /* |
1370 | #warning this needs to be checked | |
1371 | expr = constraintExpr_solveBinaryExpr (expr1, expr); | |
1372 | ||
1373 | expr = constraintExpr_solveBinaryExpr (expr2, expr); | |
1374 | return expr; | |
1375 | */ | |
3aaedf88 | 1376 | } |
1377 | ||
bb25bea6 | 1378 | static /*@only@*/ constraintExpr constraintExpr_simplifyunaryExpr (/*@only@*/ constraintExpr c) |
3aaedf88 | 1379 | { |
1380 | constraintExpr exp; | |
749f175a | 1381 | |
1382 | llassert(constraintExpr_isDefined (c) ); | |
3aaedf88 | 1383 | llassert (c->kind == unaryExpr); |
1384 | ||
d30bc0c7 | 1385 | DPRINTF ((message ("Doing constraintExpr_simplifyunaryExpr:%s", constraintExpr_unparse (c) ) ) ); |
3aaedf88 | 1386 | |
bb7c2085 | 1387 | if ((constraintExprData_unaryExprGetOp (c->data) != MAXSET) && |
3aaedf88 | 1388 | (constraintExprData_unaryExprGetOp (c->data) != MAXREAD) ) |
1389 | { | |
1390 | return c; | |
1391 | } | |
3aaedf88 | 1392 | |
1393 | exp = constraintExprData_unaryExprGetExpr (c->data); | |
a779b61e | 1394 | exp = constraintExpr_copy(exp); |
1395 | ||
749f175a | 1396 | llassert(constraintExpr_isDefined (exp) ); |
1397 | ||
3aaedf88 | 1398 | if (exp->kind == term) |
1399 | { | |
1400 | constraintTerm cterm; | |
1401 | ||
1402 | cterm = constraintExprData_termGetTerm (exp->data); | |
1403 | ||
1404 | if (constraintTerm_isStringLiteral(cterm) ) | |
1405 | { | |
1406 | cstring val; | |
1407 | val = constraintTerm_getStringLiteral (cterm); | |
1408 | if (constraintExprData_unaryExprGetOp (c->data) == MAXSET) | |
1409 | { | |
d46ce6a4 | 1410 | constraintExpr temp; |
1411 | ||
28bf4b0b | 1412 | temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) ); |
d46ce6a4 | 1413 | cstring_free(val); |
1414 | constraintExpr_free(c); | |
a779b61e | 1415 | constraintExpr_free(exp); |
1416 | ||
d46ce6a4 | 1417 | return temp; |
a779b61e | 1418 | |
3aaedf88 | 1419 | } |
1420 | if (constraintExprData_unaryExprGetOp (c->data) == MAXREAD) | |
1421 | { | |
d46ce6a4 | 1422 | constraintExpr temp; |
1423 | ||
28bf4b0b | 1424 | temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) ); |
d46ce6a4 | 1425 | cstring_free(val); |
1426 | constraintExpr_free(c); | |
a779b61e | 1427 | constraintExpr_free(exp); |
1428 | ||
d46ce6a4 | 1429 | return temp; |
3aaedf88 | 1430 | } |
1431 | BADEXIT; | |
1432 | } | |
d30bc0c7 | 1433 | |
b7b694d6 | 1434 | /* slight Kludge to hanlde var [] = { , , }; |
1435 | ** type syntax I don't think this is sounds but it should be good | |
1436 | ** enough. The C stanrad is very confusing about initialization | |
1437 | ** -- DRL 7/25/01 | |
1438 | */ | |
d30bc0c7 | 1439 | |
1440 | if (constraintTerm_isInitBlock(cterm) ) | |
1441 | { | |
1442 | constraintExpr temp; | |
1443 | int len; | |
1444 | ||
1445 | len = constraintTerm_getInitBlockLength(cterm); | |
1446 | ||
1447 | temp = constraintExpr_makeIntLiteral (len ); | |
1448 | ||
1449 | constraintExpr_free(c); | |
1450 | DPRINTF(( message("Changed too %q", constraintExpr_print(temp) | |
1451 | ) )); | |
a779b61e | 1452 | constraintExpr_free(exp); |
d30bc0c7 | 1453 | return temp; |
1454 | } | |
1455 | ||
a779b61e | 1456 | constraintExpr_free(exp); |
3aaedf88 | 1457 | return c; |
1458 | } | |
1459 | ||
1460 | if (exp->kind != binaryexpr) | |
a779b61e | 1461 | { |
1462 | constraintExpr_free(exp); | |
1463 | return c; | |
1464 | } | |
1465 | ||
0c91982e | 1466 | if (constraintExprData_binaryExprGetOp (exp->data) == BINARYOP_PLUS ) |
3aaedf88 | 1467 | { |
1468 | ||
b7b694d6 | 1469 | /* if (constraintExpr_canGetValue (constraintExprData_binaryExprGetExpr2 (exp->data) ) ) */ |
3aaedf88 | 1470 | { |
1471 | ||
4ab867d6 | 1472 | constraintExpr temp, temp2; |
3aaedf88 | 1473 | |
bb7c2085 | 1474 | DPRINTF ((message ("Doing fancy simplification") ) ); |
3aaedf88 | 1475 | |
1476 | temp = constraintExprData_binaryExprGetExpr2 (exp->data); | |
1477 | ||
1478 | temp2 = constraintExprData_binaryExprGetExpr1 (exp->data); | |
d46ce6a4 | 1479 | |
1480 | temp2 = constraintExpr_copy(temp2); | |
3aaedf88 | 1481 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp2); |
1482 | ||
1483 | ||
bb25bea6 | 1484 | temp = constraintExpr_copy (temp); |
1485 | ||
2934b455 | 1486 | c = constraintExpr_makeSubtractExpr (c, temp); |
3aaedf88 | 1487 | |
bb7c2085 | 1488 | DPRINTF ((message ("Done fancy simplification:%s", constraintExpr_unparse (c) ) ) ); |
3aaedf88 | 1489 | } |
1490 | } | |
1491 | ||
bb7c2085 | 1492 | DPRINTF ((message ("constraintExpr_simplifyUnaryExpr: Done simplification:%s", constraintExpr_unparse (c) ) ) ); |
a779b61e | 1493 | |
1494 | constraintExpr_free(exp); | |
3aaedf88 | 1495 | return c; |
1496 | } | |
1497 | ||
1498 | ||
bb25bea6 | 1499 | /*@only@*/ constraintExpr constraintExpr_simplify (/*@only@*/ constraintExpr c) |
3aaedf88 | 1500 | { |
1501 | constraintExprKind kind; | |
bb25bea6 | 1502 | constraintExpr ret; |
3aaedf88 | 1503 | constraintTerm t; |
3aaedf88 | 1504 | |
bb7c2085 | 1505 | DPRINTF ((message ("Doing constraintExpr_simplify:%s", constraintExpr_unparse (c) ) ) ); |
bb25bea6 | 1506 | |
3aaedf88 | 1507 | |
3aaedf88 | 1508 | |
749f175a | 1509 | llassert ( constraintExpr_isDefined (c) ); |
1510 | if (constraintExpr_isUndefined (c) ) | |
1511 | { | |
1512 | return constraintExpr_undefined; | |
1513 | } | |
1514 | ||
bb25bea6 | 1515 | ret = constraintExpr_copy(c); |
749f175a | 1516 | llassert(constraintExpr_isDefined (ret) ); |
1517 | ||
bb25bea6 | 1518 | constraintExpr_free(c); |
1519 | ||
1520 | ret = constraintExpr_simplifyChildren (ret); | |
1521 | ||
1522 | ret = constraintExpr_combineConstants (ret); | |
1523 | ||
1524 | ret = constraintExpr_simplifyChildren (ret); | |
1525 | ||
1526 | ||
1527 | kind = ret->kind; | |
3aaedf88 | 1528 | |
1529 | switch (kind) | |
1530 | { | |
1531 | case term: | |
bb25bea6 | 1532 | t = constraintExprData_termGetTerm (ret->data); |
d46ce6a4 | 1533 | t = constraintTerm_copy(t); |
3aaedf88 | 1534 | t = constraintTerm_simplify (t); |
bb25bea6 | 1535 | ret->data = constraintExprData_termSetTerm (ret->data, t); |
3aaedf88 | 1536 | break; |
1537 | case unaryExpr: | |
bb25bea6 | 1538 | ret = constraintExpr_simplifyunaryExpr (ret); |
3aaedf88 | 1539 | break; |
1540 | case binaryexpr: | |
bb25bea6 | 1541 | ret = constraintExpr_simplifybinaryExpr (ret); |
3aaedf88 | 1542 | break; |
1543 | default: | |
1544 | llassert(FALSE); | |
bb25bea6 | 1545 | } |
1546 | ||
bb7c2085 | 1547 | DPRINTF ((message ("constraintExpr_simplify returning :%s", constraintExpr_unparse (ret) ) ) ); |
bb25bea6 | 1548 | return ret; |
3aaedf88 | 1549 | |
1550 | } | |
1551 | ||
bb25bea6 | 1552 | /*@only@*/ |
ae133592 | 1553 | cstring constraintExpr_unparse (/*@temp@*/ constraintExpr ex) /*@*/ |
3aaedf88 | 1554 | { |
1555 | cstring st; | |
1556 | constraintExprKind kind; | |
1557 | ||
1558 | llassert (ex != NULL); | |
1559 | ||
1560 | kind = ex->kind; | |
1561 | ||
1562 | switch (kind) | |
1563 | { | |
1564 | case term: | |
ae133592 | 1565 | if (context_getFlag (FLG_PARENCONSTRAINT) ) |
1566 | { | |
1567 | st = message ("(%q) ", constraintTerm_unparse (constraintExprData_termGetTerm (ex->data))); | |
1568 | } | |
1569 | else | |
1570 | { | |
1571 | st = message ("%q", constraintTerm_unparse (constraintExprData_termGetTerm (ex->data))); | |
1572 | } | |
3aaedf88 | 1573 | break; |
1574 | case unaryExpr: | |
a779b61e | 1575 | st = message ("%q(%q)", |
1576 | constraintExprUnaryOpKind_print (constraintExprData_unaryExprGetOp (ex->data) ), | |
3aaedf88 | 1577 | constraintExpr_unparse (constraintExprData_unaryExprGetExpr (ex->data) ) |
1578 | ); | |
1579 | break; | |
1580 | case binaryexpr: | |
a779b61e | 1581 | if (context_getFlag (FLG_PARENCONSTRAINT) ) |
1582 | { | |
1583 | st = message ("(%q) %q (%q)", | |
ae133592 | 1584 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ), |
1585 | constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data)), | |
1586 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) ) | |
1587 | ); | |
a779b61e | 1588 | } |
1589 | else | |
1590 | { | |
1591 | st = message ("%q %q %q", | |
ae133592 | 1592 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data)), |
1593 | constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data)), | |
1594 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data)) | |
a779b61e | 1595 | ); |
1596 | } | |
1597 | ||
3aaedf88 | 1598 | break; |
1599 | default: | |
1600 | llassert(FALSE); | |
1601 | st = message ("error"); | |
1602 | ||
1603 | } | |
1604 | ||
1605 | DPRINTF((message ("constraintExpr_unparse: '%s'",st) ) ); | |
1606 | return st; | |
1607 | } | |
1608 | ||
1609 | constraintExpr constraintExpr_doSRefFixBaseParam (/*@returned@*/ constraintExpr expr, exprNodeList arglist) | |
1610 | { | |
1611 | constraintTerm Term; | |
1612 | constraintExprKind kind; | |
1613 | constraintExpr expr1, expr2; | |
1614 | constraintExprData data; | |
1615 | llassert (expr != NULL); | |
1616 | ||
1617 | data = expr->data; | |
1618 | ||
1619 | kind = expr->kind; | |
1620 | ||
1621 | switch (kind) | |
1622 | { | |
1623 | case term: | |
1624 | Term = constraintExprData_termGetTerm(data); | |
d46ce6a4 | 1625 | Term = constraintTerm_copy(Term); |
1626 | ||
3aaedf88 | 1627 | Term = constraintTerm_doSRefFixBaseParam (Term, arglist); |
1628 | data = constraintExprData_termSetTerm(data, Term); | |
1629 | break; | |
1630 | case unaryExpr: | |
1631 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1632 | expr1 = constraintExpr_copy(expr1); |
1633 | ||
3aaedf88 | 1634 | expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist); |
1635 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1636 | break; | |
1637 | case binaryexpr: | |
1638 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1639 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1640 | ||
d46ce6a4 | 1641 | expr1 = constraintExpr_copy(expr1); |
1642 | expr2 = constraintExpr_copy(expr2); | |
1643 | ||
3aaedf88 | 1644 | expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist); |
1645 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1646 | expr2 = constraintExpr_doSRefFixBaseParam (expr2, arglist); | |
1647 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1648 | ||
1649 | break; | |
1650 | default: | |
1651 | llassert(FALSE); | |
1652 | data = NULL; | |
1653 | } | |
1654 | return expr; | |
1655 | } | |
1656 | ||
86d93ed3 | 1657 | /* |
1658 | / *@only@* / constraintExpr constraintExpr_doSRefFixInvarConstraint (/ *@only@* / constraintExpr expr, sRef s, ctype ct) | |
1659 | { | |
1660 | constraintExprKind kind; | |
1661 | constraintExpr expr1, expr2; | |
1662 | constraintExprData data; | |
1663 | llassert (expr != NULL); | |
1664 | ||
1665 | data = expr->data; | |
1666 | ||
1667 | kind = expr->kind; | |
1668 | ||
1669 | switch (kind) | |
1670 | { | |
1671 | case term: | |
1672 | expr = doSRefFixInvarConstraintTerm (expr, s, ct); | |
1673 | break; | |
1674 | case unaryExpr: | |
1675 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
1676 | expr1 = constraintExpr_copy(expr1); | |
1677 | expr1 = constraintExpr_doSRefFixInvarConstraint (expr1, s, ct); | |
1678 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1679 | break; | |
1680 | case binaryexpr: | |
1681 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1682 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1683 | ||
1684 | expr1 = constraintExpr_copy(expr1); | |
1685 | expr2 = constraintExpr_copy(expr2); | |
1686 | ||
1687 | expr1 = constraintExpr_doSRefFixInvarConstraint (expr1, s, ct); | |
1688 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1689 | expr2 = constraintExpr_doSRefFixInvarConstraint (expr2, s, ct); | |
1690 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1691 | ||
1692 | break; | |
1693 | default: | |
1694 | llassert(FALSE); | |
1695 | data = NULL; | |
1696 | } | |
1697 | return expr; | |
1698 | } | |
1699 | */ | |
1700 | ||
d46ce6a4 | 1701 | /*@only@*/ constraintExpr constraintExpr_doSRefFixConstraintParam (/*@only@*/ constraintExpr expr, exprNodeList arglist) /*@modifies expr@*/ |
3aaedf88 | 1702 | { |
1703 | constraintExprKind kind; | |
1704 | constraintExpr expr1, expr2; | |
1705 | constraintExprData data; | |
1706 | llassert (expr != NULL); | |
1707 | ||
1708 | data = expr->data; | |
1709 | ||
1710 | kind = expr->kind; | |
1711 | ||
1712 | switch (kind) | |
1713 | { | |
1714 | case term: | |
c3e695ff | 1715 | expr = doSRefFixConstraintParamTerm (expr, arglist); |
3aaedf88 | 1716 | break; |
1717 | case unaryExpr: | |
1718 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1719 | expr1 = constraintExpr_copy(expr1); |
3aaedf88 | 1720 | expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist); |
1721 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1722 | break; | |
1723 | case binaryexpr: | |
1724 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1725 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1726 | ||
d46ce6a4 | 1727 | expr1 = constraintExpr_copy(expr1); |
1728 | expr2 = constraintExpr_copy(expr2); | |
1729 | ||
3aaedf88 | 1730 | expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist); |
1731 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1732 | expr2 = constraintExpr_doSRefFixConstraintParam (expr2, arglist); | |
1733 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1734 | ||
1735 | break; | |
1736 | default: | |
1737 | llassert(FALSE); | |
1738 | data = NULL; | |
1739 | } | |
1740 | return expr; | |
1741 | } | |
1742 | ||
28bf4b0b | 1743 | /*@only@*/ constraintExpr constraintExpr_doFixResult (/*@only@*/ constraintExpr expr, /*@observer@*/ exprNode fcnCall) |
3aaedf88 | 1744 | { |
1745 | constraintExprKind kind; | |
1746 | constraintExpr expr1, expr2; | |
1747 | constraintExprData data; | |
1748 | llassert (expr != NULL); | |
1749 | ||
1750 | data = expr->data; | |
1751 | ||
1752 | kind = expr->kind; | |
1753 | ||
1754 | switch (kind) | |
1755 | { | |
1756 | case term: | |
c3e695ff | 1757 | expr = doFixResultTerm (expr, fcnCall); |
3aaedf88 | 1758 | break; |
1759 | case unaryExpr: | |
1760 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1761 | expr1 = constraintExpr_copy(expr1); |
1762 | ||
3aaedf88 | 1763 | expr1 = constraintExpr_doFixResult (expr1, fcnCall); |
1764 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1765 | break; | |
1766 | case binaryexpr: | |
1767 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1768 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1769 | ||
d46ce6a4 | 1770 | expr1 = constraintExpr_copy(expr1); |
1771 | expr2 = constraintExpr_copy(expr2); | |
1772 | ||
3aaedf88 | 1773 | expr1 = constraintExpr_doFixResult (expr1, fcnCall); |
1774 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1775 | expr2 = constraintExpr_doFixResult (expr2, fcnCall); | |
1776 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1777 | ||
1778 | break; | |
1779 | default: | |
1780 | llassert(FALSE); | |
1781 | data = NULL; | |
1782 | } | |
1783 | return expr; | |
1784 | } | |
1785 | ||
dc92450f | 1786 | cstring constraintExpr_print (constraintExpr expr) /*@*/ |
3aaedf88 | 1787 | { |
b9904f57 | 1788 | return constraintExpr_unparse (expr); |
3aaedf88 | 1789 | } |
1790 | ||
dc92450f | 1791 | bool constraintExpr_hasMaxSet (constraintExpr expr) /*@*/ |
3aaedf88 | 1792 | { |
1793 | cstring t; | |
1794 | ||
1795 | t = constraintExpr_unparse(expr); | |
1796 | ||
03d670b6 | 1797 | if (cstring_containsLit(t, "maxSet") != NULL ) |
d46ce6a4 | 1798 | { |
1799 | cstring_free(t); | |
1800 | return (TRUE); | |
1801 | } | |
c3e695ff | 1802 | else |
d46ce6a4 | 1803 | { |
1804 | cstring_free(t); | |
1805 | return FALSE; | |
1806 | } | |
3aaedf88 | 1807 | } |
1808 | ||
1809 | ||
1810 | ||
1811 | /*returns 1 0 -1 like strcmp | |
1812 | 1 => expr1 > expr2 | |
1813 | 0 => expr1 == expr2 | |
1814 | -1 => expr1 < expr2 | |
1815 | */ | |
b9904f57 | 1816 | |
3aaedf88 | 1817 | int constraintExpr_compare (constraintExpr expr1, constraintExpr expr2) |
1818 | { | |
b9904f57 | 1819 | long value1, value2; |
3aaedf88 | 1820 | |
1821 | if (constraintExpr_similar (expr1, expr2) ) | |
1822 | { | |
1823 | return 0; | |
1824 | } | |
b9904f57 | 1825 | |
3aaedf88 | 1826 | value1 = constraintExpr_getValue(expr1); |
1827 | value2 = constraintExpr_getValue(expr2); | |
1828 | ||
1829 | if (value1 > value2) | |
1830 | return 1; | |
1831 | ||
1832 | if (value1 == value2) | |
1833 | return 0; | |
1834 | ||
1835 | else | |
1836 | return -1; | |
1837 | } | |
1838 | ||
b9904f57 | 1839 | long constraintExpr_getValue (constraintExpr expr) |
3aaedf88 | 1840 | { |
749f175a | 1841 | llassert (constraintExpr_isDefined(expr) ); |
3aaedf88 | 1842 | llassert (expr->kind == term); |
749f175a | 1843 | |
b9904f57 | 1844 | return (constraintTerm_getValue (constraintExprData_termGetTerm (expr->data))); |
3aaedf88 | 1845 | } |
1846 | ||
1847 | bool constraintExpr_canGetValue (constraintExpr expr) | |
1848 | { | |
749f175a | 1849 | llassert ( constraintExpr_isDefined (expr) ); |
1850 | if (constraintExpr_isUndefined (expr) ) | |
1851 | { | |
1852 | return FALSE; | |
1853 | } | |
1854 | ||
3aaedf88 | 1855 | switch (expr->kind) |
1856 | { | |
1857 | case term: | |
1858 | return constraintTerm_canGetValue (constraintExprData_termGetTerm (expr->data) ); | |
1859 | default: | |
1860 | return FALSE; | |
1861 | ||
1862 | } | |
c3e695ff | 1863 | |
1864 | BADEXIT; | |
3aaedf88 | 1865 | } |
1866 | ||
ae133592 | 1867 | fileloc constraintExpr_loc (constraintExpr expr) |
3aaedf88 | 1868 | { |
1869 | constraintExpr e; | |
1870 | constraintTerm t; | |
1871 | constraintExprKind kind; | |
1872 | ||
749f175a | 1873 | llassert ( constraintExpr_isDefined (expr) ); |
1874 | if (constraintExpr_isUndefined (expr) ) | |
1875 | { | |
1876 | return fileloc_undefined; | |
1877 | } | |
1878 | ||
1879 | ||
3aaedf88 | 1880 | kind = expr->kind; |
1881 | ||
1882 | switch (kind) | |
1883 | { | |
1884 | case term: | |
1885 | t = constraintExprData_termGetTerm (expr->data); | |
1886 | return (constraintTerm_getFileloc (t) ); | |
c3e695ff | 1887 | /*@notreached@*/ |
3aaedf88 | 1888 | break; |
1889 | case unaryExpr: | |
1890 | e = constraintExprData_unaryExprGetExpr (expr->data); | |
ae133592 | 1891 | return (constraintExpr_loc (e) ); |
c3e695ff | 1892 | /*@notreached@*/ |
3aaedf88 | 1893 | break; |
1894 | case binaryexpr: | |
1895 | e = constraintExprData_binaryExprGetExpr1 (expr->data); | |
ae133592 | 1896 | return (constraintExpr_loc (e) ); |
c3e695ff | 1897 | /*@notreached@*/ |
1898 | break; | |
3aaedf88 | 1899 | } |
1900 | llassert (FALSE); | |
3aaedf88 | 1901 | return (fileloc_undefined); |
1902 | } | |
1903 | ||
c3e695ff | 1904 | /*drl moved from constriantTerm.c 5/20/001*/ |
4ab867d6 | 1905 | static /*@only@*/ constraintExpr |
1906 | doFixResultTerm (/*@only@*/ constraintExpr e, /*@exposed@*/ exprNode fcnCall) | |
c3e695ff | 1907 | { |
1908 | constraintTerm t; | |
1909 | sRef s; | |
749f175a | 1910 | constraintExprData data; |
1911 | constraintExprKind kind; | |
c3e695ff | 1912 | constraintExpr ret; |
2a6e9c30 | 1913 | |
1914 | llassert (constraintExpr_isDefined (e) ); | |
749f175a | 1915 | |
1916 | data = e->data; | |
1917 | kind = e->kind; | |
2a6e9c30 | 1918 | |
1919 | llassert (kind == term); | |
1920 | ||
c3e695ff | 1921 | t = constraintExprData_termGetTerm (data); |
2a6e9c30 | 1922 | llassert (constraintTerm_isDefined (t)); |
1923 | ||
c3e695ff | 1924 | ret = e; |
2a6e9c30 | 1925 | |
1926 | switch (constraintTerm_getKind (t)) | |
c3e695ff | 1927 | { |
9a48d98c | 1928 | case CTT_EXPR: |
1929 | case CTT_INTLITERAL: | |
c3e695ff | 1930 | break; |
1931 | ||
9a48d98c | 1932 | case CTT_SREF: |
a8e557d3 | 1933 | s = constraintTerm_getSRef(t); |
c3e695ff | 1934 | if (sRef_isResult (s)) |
1935 | { | |
1936 | ret = constraintExpr_makeExprNode(fcnCall); | |
4ab867d6 | 1937 | constraintExpr_free(e); |
1938 | e = NULL; | |
1939 | } | |
1940 | else | |
1941 | { | |
1942 | e = NULL; | |
c3e695ff | 1943 | } |
1944 | break; | |
1945 | default: | |
1946 | BADEXIT; | |
1947 | } | |
1948 | ||
1949 | return ret; | |
1950 | ||
1951 | } | |
2a6e9c30 | 1952 | |
1953 | #if 0 | |
1954 | ||
1955 | /*to be used for structure checking */ | |
1956 | ||
86d93ed3 | 1957 | / *@only@* / static constraintExpr |
8ea5df88 | 1958 | doSRefFixInvarConstraintTerm (/ *@only@* / constraintExpr e, sRef s, ctype ct) |
86d93ed3 | 1959 | { |
1960 | constraintTerm t; | |
1961 | ||
1962 | constraintExprData data = e->data; | |
1963 | ||
1964 | constraintExprKind kind = e->kind; | |
1965 | ||
1966 | constraintExpr ret; | |
c3e695ff | 1967 | |
86d93ed3 | 1968 | llassert(kind == term); |
1969 | ||
1970 | t = constraintExprData_termGetTerm (data); | |
1971 | llassert (constraintTerm_isDefined(t) ); | |
1972 | ||
1973 | ret = e; | |
1974 | ||
1975 | DPRINTF (("Fixing: %s", constraintExpr_print (e))); | |
1976 | ||
1977 | switch (constraintTerm_getKind(t)) | |
1978 | { | |
9a48d98c | 1979 | case CTT_EXPR: |
1980 | DPRINTF((message ("%q @ %q ", constraintTerm_unparse(t), | |
86d93ed3 | 1981 | fileloc_unparse (constraintTerm_getFileloc(t) ) ) )); |
1982 | break; | |
9a48d98c | 1983 | case CTT_INTLITERAL: |
1984 | DPRINTF((message (" %q ", constraintTerm_unparse (t)) )); | |
86d93ed3 | 1985 | break; |
1986 | ||
9a48d98c | 1987 | case CTT_SREF: |
86d93ed3 | 1988 | / * evans 2001-07-24: constants should use the original term * / |
1989 | if (!constraintTerm_canGetValue (t)) | |
1990 | { | |
1991 | sRef snew; | |
1992 | DPRINTF ((message("Doing sRef_fixInvarConstraint for %q ", | |
9a48d98c | 1993 | constraintTerm_unparse (t) ) )); |
86d93ed3 | 1994 | |
1995 | snew = fixSref (ct, s, constraintTerm_getSRef(t)); | |
1996 | ||
1997 | ret = constraintExpr_makeTermsRef(snew); | |
1998 | ||
1999 | constraintExpr_free (e); | |
2000 | ||
2001 | DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ", | |
2002 | constraintExpr_print (ret) ) )); | |
2003 | / *@-branchstate@* / | |
2004 | } / *@=branchstate@* / | |
2005 | ||
2006 | break; | |
2007 | default: | |
2008 | BADEXIT; | |
2009 | } | |
2010 | ||
2011 | return ret; | |
2012 | ||
2013 | } | |
2a6e9c30 | 2014 | #endif |
86d93ed3 | 2015 | |
c3e695ff | 2016 | /*drl moved from constriantTerm.c 5/20/001*/ |
d46ce6a4 | 2017 | /*@only@*/ static constraintExpr |
4ab867d6 | 2018 | doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr e, /*@observer@*/ /*@temp@*/ exprNodeList arglist) |
c3e695ff | 2019 | { |
2020 | constraintTerm t; | |
2021 | ||
749f175a | 2022 | constraintExprData data; |
c3e695ff | 2023 | |
749f175a | 2024 | constraintExprKind kind; |
c3e695ff | 2025 | |
2026 | constraintExpr ret; | |
2027 | ||
749f175a | 2028 | |
2029 | llassert(constraintExpr_isDefined (e) ); | |
2030 | ||
2031 | data = e->data; | |
2032 | ||
2033 | kind = e->kind; | |
2034 | ||
2035 | ||
2036 | ||
c3e695ff | 2037 | llassert(kind == term); |
2038 | ||
2039 | t = constraintExprData_termGetTerm (data); | |
28bf4b0b | 2040 | llassert (constraintTerm_isDefined(t) ); |
c3e695ff | 2041 | |
2042 | ret = e; | |
b9904f57 | 2043 | |
2044 | DPRINTF (("Fixing: %s", constraintExpr_print (e))); | |
2045 | ||
2046 | switch (constraintTerm_getKind(t)) | |
c3e695ff | 2047 | { |
9a48d98c | 2048 | case CTT_EXPR: |
2049 | DPRINTF((message ("%q @ %q ", constraintTerm_unparse(t), | |
bb25bea6 | 2050 | fileloc_unparse (constraintTerm_getFileloc(t) ) ) )); |
c3e695ff | 2051 | break; |
9a48d98c | 2052 | case CTT_INTLITERAL: |
2053 | DPRINTF((message (" %q ", constraintTerm_unparse (t)) )); | |
d46ce6a4 | 2054 | break; |
9a48d98c | 2055 | case CTT_SREF: |
b9904f57 | 2056 | /* evans 2001-07-24: constants should use the original term */ |
2057 | if (!constraintTerm_canGetValue (t)) | |
2058 | { | |
2059 | DPRINTF ((message("Doing sRef_fixConstraintParam for %q ", | |
9a48d98c | 2060 | constraintTerm_unparse (t) ) )); |
b9904f57 | 2061 | ret = sRef_fixConstraintParam (constraintTerm_getSRef(t), arglist); |
2062 | ||
2063 | constraintExpr_free (e); | |
2064 | ||
2065 | DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ", | |
2066 | constraintExpr_print (ret) ) )); | |
2067 | /*@-branchstate@*/ | |
2068 | } /*@=branchstate@*/ | |
d46ce6a4 | 2069 | |
c3e695ff | 2070 | break; |
2071 | default: | |
2072 | BADEXIT; | |
2073 | } | |
b9904f57 | 2074 | |
c3e695ff | 2075 | return ret; |
2076 | ||
2077 | } | |
3aaedf88 | 2078 | |
2079 | ||
749f175a | 2080 | #if 0 |
2081 | bool constraintExpr_includesTerm (constraintExpr expr, constraintTerm term) | |
2082 | { | |
2083 | if (constraintTerm_hasTerm (expr->term, term) ) | |
2084 | return TRUE; | |
3aaedf88 | 2085 | |
749f175a | 2086 | if ((expr->expr) != NULL) |
2087 | { | |
2088 | return ( constraintExpr_includesTerm (expr->expr, term) ); | |
2089 | } | |
2090 | return FALSE; | |
3aaedf88 | 2091 | |
749f175a | 2092 | } |
2093 | #endif | |
3aaedf88 | 2094 | |
bb25bea6 | 2095 | /*drl added 6/11/01 */ |
2096 | bool constraintExpr_isBinaryExpr (/*@observer@*/ constraintExpr c) | |
2097 | { | |
749f175a | 2098 | |
2099 | llassert(constraintExpr_isDefined (c) ); | |
2100 | ||
2101 | if ( ! (constraintExpr_isDefined (c) ) ) | |
2102 | return FALSE; | |
2103 | ||
bb25bea6 | 2104 | if (c->kind == binaryexpr) |
2105 | return TRUE; | |
3aaedf88 | 2106 | |
bb25bea6 | 2107 | else |
2108 | return FALSE; | |
2109 | } | |
3aaedf88 | 2110 | |
a779b61e | 2111 | /*drl added 8/08/001 */ |
2112 | bool constraintExpr_isTerm (/*@observer@*/ constraintExpr c) /*@*/ | |
2113 | { | |
0ec8d634 | 2114 | llassert(constraintExpr_isDefined (c) ); |
2115 | ||
a779b61e | 2116 | if (c->kind == term) |
2117 | return TRUE; | |
2118 | ||
2119 | else | |
2120 | return FALSE; | |
2121 | } | |
2122 | ||
2123 | /*@observer@*/ /*@temp@*/ constraintTerm constraintExpr_getTerm ( /*@temp@*/ /*@observer@*/ constraintExpr c) /*@*/ | |
2124 | { | |
2125 | constraintTerm term; | |
2126 | ||
0ec8d634 | 2127 | llassert(constraintExpr_isDefined (c) ); |
2128 | ||
a779b61e | 2129 | llassert(constraintExpr_isTerm(c) ); |
2130 | ||
2131 | term = constraintExprData_termGetTerm(c->data); | |
2132 | ||
2133 | return term; | |
2134 | } | |
2135 | ||
920a3797 | 2136 | static void binaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f) |
2137 | { | |
2138 | constraintExpr expr1; | |
2139 | constraintExprBinaryOpKind binaryOp; | |
2140 | constraintExpr expr2; | |
2141 | ||
2142 | ||
2143 | binaryOp = constraintExprData_binaryExprGetOp (data); | |
2144 | ||
2145 | fprintf(f, "%d\n", (int) binaryOp); | |
2146 | ||
2147 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
2148 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
2149 | ||
2150 | fprintf(f, "e1\n"); | |
2151 | ||
2152 | constraintExpr_dump(expr1, f); | |
2153 | ||
2154 | fprintf(f, "e2\n"); | |
2155 | constraintExpr_dump(expr2, f); | |
2156 | } | |
2157 | ||
2158 | ||
2159 | static constraintExpr binaryExpr_undump (FILE *f) | |
2160 | { | |
2161 | constraintExpr expr1; | |
2162 | constraintExprBinaryOpKind binaryOp; | |
2163 | constraintExpr expr2; | |
2164 | ||
2165 | constraintExpr ret; | |
2166 | ||
2167 | ||
2168 | ||
2169 | char * str; | |
2170 | char * os; | |
2171 | ||
3be9a165 | 2172 | os = mstring_create (MAX_DUMP_LINE_LENGTH); |
2173 | ||
920a3797 | 2174 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); |
2175 | ||
0ec8d634 | 2176 | if (! mstring_isDefined(str) ) |
2177 | { | |
2178 | llfatalbug(message("Library file is corrupted") ); | |
2179 | } | |
920a3797 | 2180 | |
28bf4b0b | 2181 | binaryOp = (constraintExprBinaryOpKind) reader_getInt(&str); |
920a3797 | 2182 | |
2183 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2184 | ||
0ec8d634 | 2185 | if (! mstring_isDefined(str) ) |
2186 | { | |
2187 | llfatalbug(message("Library file is corrupted") ); | |
2188 | } | |
2189 | ||
28bf4b0b | 2190 | reader_checkChar (&str, 'e'); |
2191 | reader_checkChar (&str, '1'); | |
920a3797 | 2192 | |
2193 | expr1 = constraintExpr_undump (f); | |
2194 | ||
2195 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2196 | ||
28bf4b0b | 2197 | reader_checkChar (&str, 'e'); |
2198 | reader_checkChar (&str, '2'); | |
920a3797 | 2199 | |
2200 | expr2 = constraintExpr_undump (f); | |
2201 | ||
2202 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2); | |
2203 | ret->data = constraintExprData_binaryExprSetOp(ret->data, binaryOp); | |
2204 | ||
2205 | free(os); | |
2206 | return ret; | |
2207 | } | |
2208 | ||
2209 | ||
2210 | ||
2211 | static void unaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f) | |
2212 | { | |
2213 | ||
2214 | constraintExpr expr; | |
2215 | constraintExprUnaryOpKind unaryOp; | |
2216 | ||
2217 | unaryOp = constraintExprData_unaryExprGetOp (data); | |
2218 | ||
2219 | fprintf(f, "%d\n", (int) unaryOp); | |
2220 | ||
2221 | expr = constraintExprData_unaryExprGetExpr (data); | |
2222 | ||
2223 | constraintExpr_dump(expr, f); | |
2224 | } | |
2225 | ||
2226 | static constraintExpr unaryExpr_undump ( FILE *f) | |
2227 | { | |
2228 | ||
2229 | constraintExpr expr; | |
2230 | constraintExprUnaryOpKind unaryOp; | |
2231 | constraintExpr ret; | |
2232 | ||
2233 | char * str; | |
2234 | char * os; | |
2235 | ||
2236 | str = mstring_create (MAX_DUMP_LINE_LENGTH); | |
2237 | os = str; | |
2238 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2239 | ||
0ec8d634 | 2240 | if (! mstring_isDefined(str) ) |
2241 | { | |
2242 | llfatalbug(message("Library file is corrupted") ); | |
2243 | } | |
2244 | ||
28bf4b0b | 2245 | unaryOp = (constraintExprUnaryOpKind) reader_getInt(&str); |
920a3797 | 2246 | |
2247 | expr = constraintExpr_undump (f); | |
2248 | ||
2249 | ret = constraintExpr_makeUnaryOp (expr, unaryOp); | |
2250 | ||
2251 | free(os); | |
2252 | ||
2253 | return ret; | |
2254 | } | |
2255 | ||
2256 | void constraintExpr_dump (/*@observer@*/ constraintExpr expr, FILE *f) | |
2257 | { | |
2258 | constraintExprKind kind; | |
2259 | constraintTerm t; | |
2260 | ||
0f9b7373 | 2261 | |
0ec8d634 | 2262 | llassert(constraintExpr_isDefined(expr) ); |
2263 | ||
0f9b7373 | 2264 | DPRINTF((message("constraintExpr_dump:: dumping constraintExpr %s", |
2265 | constraintExpr_unparse(expr) | |
2266 | ) )); | |
920a3797 | 2267 | |
2268 | kind = expr->kind; | |
2269 | ||
2270 | fprintf(f,"%d\n", (int) kind); | |
2271 | ||
2272 | switch (kind) | |
2273 | { | |
2274 | case term: | |
2275 | t = constraintExprData_termGetTerm (expr->data); | |
2276 | constraintTerm_dump (t, f); | |
2277 | break; | |
2278 | case unaryExpr: | |
2279 | unaryExpr_dump (expr->data, f); | |
2280 | break; | |
2281 | case binaryexpr: | |
2282 | binaryExpr_dump (expr->data, f); | |
2283 | break; | |
2284 | } | |
2285 | } | |
2286 | ||
2287 | /*@only@*/ constraintExpr constraintExpr_undump (FILE *f) | |
2288 | { | |
2289 | constraintExprKind kind; | |
2290 | constraintTerm t; | |
2291 | constraintExpr ret; | |
2292 | ||
2293 | char * s; | |
2294 | char * os; | |
2295 | ||
2296 | s = mstring_create (MAX_DUMP_LINE_LENGTH); | |
2297 | ||
2298 | os = s; | |
2299 | ||
2300 | s = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
2301 | ||
0ec8d634 | 2302 | if (! mstring_isDefined(s) ) |
2303 | { | |
2304 | llfatalbug(message("Library file is corrupted") ); | |
2305 | } | |
2306 | ||
28bf4b0b | 2307 | kind = (constraintExprKind) reader_getInt(&s); |
920a3797 | 2308 | |
2309 | free (os); | |
2310 | ||
2311 | switch (kind) | |
2312 | { | |
2313 | case term: | |
2314 | t = constraintTerm_undump (f); | |
2315 | ret = constraintExpr_makeTerm(t); | |
2316 | break; | |
2317 | case unaryExpr: | |
2318 | ret = unaryExpr_undump (f); | |
2319 | break; | |
2320 | case binaryexpr: | |
2321 | ret = binaryExpr_undump (f); | |
2322 | break; | |
2323 | } | |
2324 | ||
2325 | return ret; | |
2326 | ||
2327 | } | |
a779b61e | 2328 | |
2329 | int constraintExpr_getDepth (constraintExpr ex) | |
2330 | { | |
2331 | int ret; | |
2332 | ||
2333 | constraintExprKind kind; | |
2334 | ||
2335 | llassert (ex != NULL); | |
2336 | ||
2337 | kind = ex->kind; | |
2338 | ||
2339 | switch (kind) | |
2340 | { | |
2341 | case term: | |
2342 | ret = 1; | |
2343 | break; | |
2344 | case unaryExpr: | |
2345 | ret = constraintExpr_getDepth (constraintExprData_unaryExprGetExpr (ex->data) ); | |
2346 | ret++; | |
2347 | ||
2348 | break; | |
2349 | case binaryexpr: | |
2350 | ret = 0; | |
2351 | ret = constraintExpr_getDepth (constraintExprData_binaryExprGetExpr1 (ex->data) ); | |
2352 | ||
2353 | ret++; | |
2354 | ||
2355 | ret += constraintExpr_getDepth (constraintExprData_binaryExprGetExpr2 (ex->data) ); | |
2356 | ||
2357 | break; | |
2358 | default: | |
2359 | BADEXIT; | |
2360 | } | |
2361 | ||
2362 | return ret; | |
2363 | } | |
2364 | ||
2365 | ||
ae133592 | 2366 | bool constraintExpr_canGetCType (constraintExpr e) /*@*/ |
86d93ed3 | 2367 | { |
ae133592 | 2368 | if (constraintExpr_isUndefined(e)) |
0ec8d634 | 2369 | return FALSE; |
2370 | ||
86d93ed3 | 2371 | if (e->kind == term) |
2372 | { | |
2373 | return TRUE; | |
2374 | } | |
2375 | else | |
2376 | { | |
ae133592 | 2377 | DPRINTF (("constraintExpr_canGetCType: can't get type for %s", constraintExpr_unparse (e))); |
86d93ed3 | 2378 | return FALSE; |
2379 | } | |
2380 | } | |
2381 | ||
2382 | ctype constraintExpr_getCType (constraintExpr e) /*@*/ | |
2383 | { | |
2384 | constraintTerm t; | |
0ec8d634 | 2385 | |
ae133592 | 2386 | llassert (constraintExpr_isDefined (e)); |
2387 | llassert (constraintExpr_canGetCType (e)); | |
86d93ed3 | 2388 | |
2389 | switch (e->kind) | |
2390 | { | |
2391 | case term: | |
2392 | t = constraintExprData_termGetTerm (e->data); | |
2393 | return (constraintTerm_getCType(t) ); | |
2394 | /* assume that a unary expression will be an int ... */ | |
2395 | case unaryExpr: | |
ae133592 | 2396 | return ctype_unknown; /* was ctype_signedintegral; */ |
86d93ed3 | 2397 | /* drl for just return type of first operand */ |
2398 | case binaryexpr: | |
ae133592 | 2399 | return (constraintExpr_getCType (constraintExprData_binaryExprGetExpr1 (e->data))); |
86d93ed3 | 2400 | default: |
2401 | BADEXIT; | |
2402 | } | |
2403 | BADEXIT; | |
2404 | } | |
2405 | ||
2406 | /* drl add 10-5-001 */ | |
2407 | ||
ae133592 | 2408 | static bool constraintExpr_hasTypeChange (constraintExpr e) |
86d93ed3 | 2409 | { |
ae133592 | 2410 | llassert(constraintExpr_isDefined(e)); |
2411 | ||
2412 | if (constraintExpr_isDefined((e)) && (e->ct == TRUE)) | |
86d93ed3 | 2413 | { |
2414 | return TRUE; | |
2415 | } | |
2416 | ||
2417 | if (e->kind == unaryExpr) | |
2418 | { | |
2419 | if (constraintExprData_unaryExprGetOp (e->data) == MAXSET) | |
2420 | { | |
ae133592 | 2421 | constraintExpr ce = constraintExprData_unaryExprGetExpr(e->data); |
2422 | DPRINTF (("Unary type change: [%x] %s", ce, constraintExpr_unparse (ce))); | |
2423 | DPRINTF (("Types: %s / %s", ctype_unparse (constraintExpr_getCType (ce)), | |
2424 | ctype_unparse (constraintExpr_getOrigType (ce)))); | |
2425 | return (constraintExpr_hasTypeChange(ce)); | |
86d93ed3 | 2426 | } |
86d93ed3 | 2427 | } |
ae133592 | 2428 | |
86d93ed3 | 2429 | return FALSE; |
2430 | } | |
2431 | ||
2432 | /* drl add 10-5-001 */ | |
2433 | ||
2434 | static ctype constraintExpr_getOrigType (constraintExpr e) | |
2435 | { | |
ae133592 | 2436 | llassert (constraintExpr_isDefined (e)); |
2437 | llassert (constraintExpr_hasTypeChange (e)); | |
86d93ed3 | 2438 | |
2439 | if (e->ct == TRUE) | |
2440 | { | |
2441 | return e->origType; | |
2442 | } | |
2443 | ||
2444 | if (e->kind == unaryExpr) | |
2445 | { | |
2446 | if (constraintExprData_unaryExprGetOp (e->data) == MAXSET) | |
2447 | { | |
ae133592 | 2448 | constraintExpr ce = constraintExprData_unaryExprGetExpr (e->data); |
2449 | return (constraintExpr_getOrigType(ce)); | |
86d93ed3 | 2450 | } |
2451 | ||
2452 | } | |
2453 | ||
2454 | BADEXIT; | |
2455 | } | |
2456 | ||
2457 | /*drl added these around 10/18/001*/ | |
2458 | ||
8ea5df88 | 2459 | static /*@only@*/ constraintExpr |
2460 | constraintExpr_div (/*@only@*/ constraintExpr e, ctype tfrom, ctype tto, fileloc loc) | |
86d93ed3 | 2461 | { |
ae133592 | 2462 | int sizefrom = ctype_getSize (tfrom); |
2463 | int sizeto = ctype_getSize (tto); | |
2464 | ||
2465 | DPRINTF (("constraintExpr_div: %s", constraintExpr_unparse (e))); | |
2466 | DPRINTF (("Types: %s / %s", | |
2467 | ctype_unparse (tfrom), | |
2468 | ctype_unparse (tto))); | |
2469 | ||
2470 | if (sizefrom == -1) { | |
2471 | llbug (message ("constraintExpr_div: type size unknown: %s", ctype_unparse (tfrom))); | |
2472 | } | |
2473 | ||
2474 | if (sizeto == -1) { | |
2475 | llbug (message ("constraintExpr_div: type size unknown: %s", ctype_unparse (tto))); | |
2476 | } | |
2477 | ||
2478 | if (sizeto == sizefrom) | |
2479 | { | |
8ea5df88 | 2480 | DPRINTF (("Sizes match: %d / %d", sizeto, sizefrom)); |
ae133592 | 2481 | ; /* Sizes match, a-ok */ |
2482 | } | |
2483 | else | |
2484 | { | |
2485 | float scale = (float) sizefrom / (float) sizeto; | |
2486 | constraintTerm ct; | |
2487 | long val; | |
2488 | float fnewval; | |
2489 | long newval; | |
2490 | ||
6317f163 | 2491 | llassert (e != NULL); |
ae133592 | 2492 | llassert (e->kind == term); |
2493 | ct = constraintExprData_termGetTerm (e->data); | |
8ea5df88 | 2494 | DPRINTF (("constraint: %s / %s", constraintExpr_unparse (e), constraintTerm_unparse (ct))); |
ae133592 | 2495 | llassert (constraintTerm_canGetValue (ct)); |
2496 | val = constraintTerm_getValue (ct); | |
2497 | ||
2498 | DPRINTF (("Scaling constraints by: %ld * %f", val, scale)); | |
2499 | ||
6317f163 | 2500 | fnewval = ((float) val) * scale; |
ae133592 | 2501 | newval = (long) fnewval; |
2502 | ||
2503 | DPRINTF (("Values: %f / %ld", fnewval, newval)); | |
6317f163 | 2504 | |
ae133592 | 2505 | if ((fnewval - (float) newval) > FLT_EPSILON) |
2506 | { | |
2507 | voptgenerror (FLG_ALLOCMISMATCH, | |
2508 | message ("Allocated memory is converted to type %s of (size %d), " | |
6317f163 | 2509 | "which is not divisible into original allocation of space " |
2510 | "for %d elements of type %s (size %d)", | |
ae133592 | 2511 | ctype_unparse (tto), sizeto, |
6317f163 | 2512 | long_toInt (val), ctype_unparse (tfrom), sizefrom), |
ae133592 | 2513 | loc); |
2514 | } | |
2515 | ||
2516 | constraintTerm_setValue (ct, newval); | |
2517 | } | |
2518 | ||
2519 | DPRINTF (("After div: %s", constraintExpr_unparse (e))); | |
86d93ed3 | 2520 | return e; |
2521 | } | |
2522 | ||
0ec8d634 | 2523 | |
2524 | /*@access exprNode@*/ | |
8ea5df88 | 2525 | static /*@only@*/ constraintExpr |
2526 | constraintTerm_simpleDivTypeExprNode (/*@only@*/ constraintExpr e, ctype tfrom, ctype tto, fileloc loc) | |
86d93ed3 | 2527 | { |
2528 | exprData data; | |
2529 | exprNode t1, t2, expr; | |
2530 | lltok tok; | |
2531 | constraintTerm t; | |
2532 | ||
ae133592 | 2533 | llassert (constraintExpr_isDefined(e) ); |
0ec8d634 | 2534 | |
ae133592 | 2535 | DPRINTF (("constraintTerm_simpleDivTypeExprNode e=%s [%s => %s]", constraintExpr_print(e), |
2536 | ctype_unparse(tfrom), ctype_unparse (tto))); | |
86d93ed3 | 2537 | |
ae133592 | 2538 | t = constraintExprData_termGetTerm (e->data); |
86d93ed3 | 2539 | |
ae133592 | 2540 | expr = constraintTerm_getExprNode (t); |
0ec8d634 | 2541 | |
ae133592 | 2542 | llassert (constraintExpr_isDefined(e)); |
2543 | llassert (exprNode_isDefined(expr)); | |
86d93ed3 | 2544 | |
2545 | if (expr->kind == XPR_OP) | |
2546 | { | |
2547 | data = expr->edata; | |
2548 | ||
2549 | t1 = exprData_getOpA (data); | |
2550 | t2 = exprData_getOpB (data); | |
2551 | tok = exprData_getOpTok (data); | |
ae133592 | 2552 | |
2553 | if (lltok_isMult (tok)) | |
86d93ed3 | 2554 | { |
6317f163 | 2555 | /* |
2556 | ** If the sizeof is first, flip them. | |
2557 | */ | |
2558 | ||
2559 | llassert (exprNode_isDefined(t1) && exprNode_isDefined(t2)); | |
2560 | ||
2561 | if (t2->kind == XPR_SIZEOF || t2->kind == XPR_SIZEOFT) | |
2562 | { | |
2563 | exprNode tmp = t1; | |
2564 | t1 = t2; | |
2565 | t2 = tmp; | |
2566 | } | |
2567 | ||
0ec8d634 | 2568 | /*drl 3/2/2003 we know this from the fact that it's a |
2569 | multiplication operation...*/ | |
86d93ed3 | 2570 | |
6317f163 | 2571 | if (t1->kind == XPR_SIZEOF || t1->kind == XPR_SIZEOFT) |
86d93ed3 | 2572 | { |
6317f163 | 2573 | ctype multype; |
86d93ed3 | 2574 | |
2575 | if (t1->kind == XPR_SIZEOFT) | |
2576 | { | |
6317f163 | 2577 | multype = qtype_getType (exprData_getType (t1->edata)); |
86d93ed3 | 2578 | } |
2579 | else | |
2580 | { | |
ae133592 | 2581 | exprNode tempE = exprData_getSingle (t1->edata); |
6317f163 | 2582 | multype = exprNode_getType (tempE); |
86d93ed3 | 2583 | } |
ae133592 | 2584 | |
6317f163 | 2585 | DPRINTF (("Here we go sizeof: %s / %s / %s", |
2586 | ctype_unparse (multype), ctype_unparse (tfrom), ctype_unparse (tto))); | |
2587 | llassert (ctype_isPointer (tfrom)); | |
2588 | ||
2589 | if (ctype_almostEqual (ctype_makePointer (multype), tto)) | |
86d93ed3 | 2590 | { |
2591 | /* this is a bit sloopy but ... */ | |
6317f163 | 2592 | constraintExpr_free (e); |
2593 | DPRINTF (("Sizeof types match okay!")); | |
ae133592 | 2594 | return constraintExpr_makeExprNode (t2); |
2595 | } | |
2596 | else | |
2597 | { | |
6317f163 | 2598 | int sizemul = ctype_getSize (multype); |
2599 | ctype tobase = ctype_baseArrayPtr (tto); | |
2600 | int sizeto = ctype_getSize (tobase); | |
0ec8d634 | 2601 | |
6317f163 | 2602 | DPRINTF (("Types: %s / %s / %s", |
2603 | ctype_unparse (tfrom), ctype_unparse (tto), ctype_unparse (multype))); | |
ae133592 | 2604 | |
6317f163 | 2605 | voptgenerror (FLG_ALLOCMISMATCH, |
2606 | message ("Allocated memory is used as a different type (%s) from the sizeof type (%s)", | |
2607 | ctype_unparse (tobase), ctype_unparse (multype)), | |
2608 | loc); | |
2609 | ||
2610 | if (sizemul == sizeto) | |
2611 | { | |
2612 | constraintExpr_free (e); | |
2613 | DPRINTF (("Sizeof types match okay!")); | |
2614 | return constraintExpr_makeExprNode (t2); | |
2615 | } | |
2616 | else | |
2617 | { | |
2618 | /* nothing was here */ | |
2619 | DPRINTF (("MISMATCHING TYPES!")); | |
2620 | return (constraintExpr_div (constraintExpr_makeExprNode (t2), multype, tto, loc)); | |
2621 | } | |
86d93ed3 | 2622 | } |
2623 | } | |
2624 | else | |
2625 | { | |
ae133592 | 2626 | DPRINTF (("NOT A SIZEOF!")); |
6317f163 | 2627 | /* empty */ |
86d93ed3 | 2628 | } |
86d93ed3 | 2629 | } |
8ea5df88 | 2630 | else |
2631 | { | |
2632 | DPRINTF (("Not a mult: %s", constraintExpr_unparse (e))); | |
2633 | } | |
86d93ed3 | 2634 | } |
ae133592 | 2635 | |
2636 | return (constraintExpr_div (e, tfrom, tto, loc)); | |
86d93ed3 | 2637 | } |
0ec8d634 | 2638 | /*@noaccess exprNode@*/ |
86d93ed3 | 2639 | |
ae133592 | 2640 | static /*@only@*/ constraintExpr simpleDivType (/*@only@*/ constraintExpr e, ctype tfrom, ctype tto, fileloc loc) |
86d93ed3 | 2641 | { |
ae133592 | 2642 | DPRINTF (("simpleDiv got %s", constraintExpr_unparse(e))); |
2643 | DPRINTF (("Types: %s / %s", | |
2644 | ctype_unparse (tfrom), | |
2645 | ctype_unparse (tto))); | |
86d93ed3 | 2646 | |
ae133592 | 2647 | llassert (constraintExpr_isDefined(e)); |
0ec8d634 | 2648 | |
86d93ed3 | 2649 | switch (e->kind) |
2650 | { | |
2651 | case term: | |
86d93ed3 | 2652 | { |
ae133592 | 2653 | constraintTerm t = constraintExprData_termGetTerm (e->data); |
86d93ed3 | 2654 | |
ae133592 | 2655 | DPRINTF (("Term: %s", constraintTerm_unparse (t))); |
86d93ed3 | 2656 | |
ae133592 | 2657 | if (constraintTerm_isExprNode (t)) |
2658 | { | |
2659 | return constraintTerm_simpleDivTypeExprNode (e, tfrom, tto, loc); | |
2660 | ||
2661 | /* search for * size of ct and remove */ | |
2662 | } | |
2663 | DPRINTF (("Here: %s / %s -> %s", constraintExpr_unparse (e), ctype_unparse (tfrom), ctype_unparse (tto))); | |
2664 | return constraintExpr_div (e, tfrom, tto, loc); | |
86d93ed3 | 2665 | } |
2666 | ||
2667 | case binaryexpr: | |
2668 | { | |
2669 | constraintExpr temp; | |
2670 | ||
2671 | temp = constraintExprData_binaryExprGetExpr1 (e->data); | |
2672 | temp = constraintExpr_copy(temp); | |
ae133592 | 2673 | temp = simpleDivType (temp, tfrom, tto, loc); |
86d93ed3 | 2674 | |
2675 | e->data = constraintExprData_binaryExprSetExpr1 (e->data, temp); | |
2676 | ||
2677 | temp = constraintExprData_binaryExprGetExpr2 (e->data); | |
2678 | temp = constraintExpr_copy(temp); | |
ae133592 | 2679 | temp = simpleDivType (temp, tfrom, tto, loc); |
86d93ed3 | 2680 | e->data = constraintExprData_binaryExprSetExpr2 (e->data, temp); |
2681 | ||
ae133592 | 2682 | DPRINTF (("simpleDiv binaryexpr returning %s ", constraintExpr_unparse(e))); |
86d93ed3 | 2683 | return e; |
2684 | } | |
2685 | case unaryExpr: | |
ae133592 | 2686 | { |
2687 | return constraintExpr_div (e, tfrom, tto, loc); | |
2688 | } | |
86d93ed3 | 2689 | |
2690 | default: | |
2691 | BADEXIT; | |
2692 | } | |
2693 | } | |
2694 | ||
ae133592 | 2695 | static /*@only@*/ constraintExpr constraintExpr_adjustMaxSetForCast (/*@only@*/ constraintExpr e, ctype tfrom, |
2696 | ctype tto, fileloc loc) | |
86d93ed3 | 2697 | { |
ae133592 | 2698 | DPRINTF (("constraintExpr_adjustMaxSetForCast got %s [%s => %s]", constraintExpr_unparse(e), |
2699 | ctype_unparse (tfrom), ctype_unparse (tto))); | |
86d93ed3 | 2700 | |
ae133592 | 2701 | e = constraintExpr_makeIncConstraintExpr (e); |
2702 | e = constraintExpr_simplify (e); | |
2703 | e = simpleDivType (e, tfrom, tto, loc); | |
2704 | e = constraintExpr_makeDecConstraintExpr (e); | |
2705 | e = constraintExpr_simplify (e); | |
86d93ed3 | 2706 | |
ae133592 | 2707 | DPRINTF (("constraintExpr_adjustMaxSetForCast returning %s ", constraintExpr_unparse(e))); |
86d93ed3 | 2708 | return e; |
2709 | } | |
2710 | ||
fba0ed37 | 2711 | |
ae133592 | 2712 | bool constraintExpr_isConstantOnly (constraintExpr e) |
fba0ed37 | 2713 | { |
ae133592 | 2714 | DPRINTF (("constraintExpr_isConstantOnly %s ", constraintExpr_unparse(e))); |
2715 | llassert (constraintExpr_isDefined(e)); | |
0ec8d634 | 2716 | |
fba0ed37 | 2717 | switch (e->kind) |
2718 | { | |
2719 | case term: | |
2720 | { | |
ae133592 | 2721 | constraintTerm t = constraintExprData_termGetTerm(e->data); |
fba0ed37 | 2722 | |
ae133592 | 2723 | if (constraintTerm_isConstantOnly (t)) |
fba0ed37 | 2724 | { |
2725 | return TRUE; | |
2726 | } | |
2727 | else | |
2728 | { | |
2729 | return FALSE; | |
2730 | } | |
2731 | } | |
2732 | ||
2733 | case binaryexpr: | |
2734 | { | |
ae133592 | 2735 | constraintExpr temp1 = constraintExprData_binaryExprGetExpr1 (e->data); |
2736 | constraintExpr temp2 = constraintExprData_binaryExprGetExpr2 (e->data); | |
fba0ed37 | 2737 | |
2738 | if (constraintExpr_isConstantOnly(temp1) && | |
2739 | constraintExpr_isConstantOnly(temp2) ) | |
2740 | { | |
2741 | return TRUE; | |
2742 | } | |
2743 | else | |
2744 | { | |
2745 | return FALSE; | |
2746 | } | |
2747 | } | |
2748 | ||
2749 | case unaryExpr: | |
2750 | { | |
2751 | constraintExpr temp; | |
2752 | ||
2753 | temp = constraintExprData_unaryExprGetExpr (e->data ); | |
2754 | ||
2755 | if (constraintExpr_isConstantOnly(temp) ) | |
2756 | { | |
2757 | return TRUE; | |
2758 | } | |
2759 | else | |
2760 | { | |
2761 | return FALSE; | |
2762 | } | |
2763 | } | |
2764 | default: | |
2765 | BADEXIT; | |
2766 | } | |
2767 | } | |
2768 |