]>
Commit | Line | Data |
---|---|---|
3aaedf88 | 1 | /* |
2 | ** constraintExpr.c | |
3 | */ | |
4 | ||
b7b694d6 | 5 | /* #define DEBUGPRINT 1 */ |
3aaedf88 | 6 | |
7 | # include "lclintMacros.nf" | |
8 | # include "basic.h" | |
9 | # include "cgrammar.h" | |
10 | # include "cgrammar_tokens.h" | |
11 | ||
12 | # include "exprChecks.h" | |
3aaedf88 | 13 | # include "exprNodeSList.h" |
14 | ||
3aaedf88 | 15 | /*@-czechfcns@*/ |
16 | ||
3aaedf88 | 17 | |
18 | ||
28bf4b0b | 19 | /*@access exprNode constraintExpr@*/ |
3aaedf88 | 20 | |
920a3797 | 21 | |
28bf4b0b | 22 | static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/constraintExpr p_expr, int p_literal); |
bb25bea6 | 23 | |
920a3797 | 24 | |
d46ce6a4 | 25 | /*@only@*/ static constraintExpr |
28bf4b0b | 26 | doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr p_e, /*@temp@*/ /*@observer@*/ exprNodeList p_arglist) /*@modifies p_e@*/; |
c3e695ff | 27 | |
4ab867d6 | 28 | static /*@only@*/ constraintExpr |
28bf4b0b | 29 | doFixResultTerm (/*@only@*/ constraintExpr p_e, /*@exposed@*/ exprNode p_fcnCall) |
30 | /*@modifies p_e@*/; | |
b7b694d6 | 31 | |
32 | ||
33 | /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void) | |
34 | /* @allocates result->data @ @sets result->kind @ */ ; | |
3aaedf88 | 35 | |
d46ce6a4 | 36 | void constraintExpr_free (/*@only@*/ constraintExpr expr) |
37 | { | |
38 | if (constraintExpr_isDefined(expr) ) | |
39 | { | |
40 | switch (expr->kind) | |
41 | { | |
42 | case unaryExpr: | |
43 | constraintExprData_freeUnaryExpr(expr->data); | |
44 | break; | |
45 | case binaryexpr: | |
46 | constraintExprData_freeBinaryExpr(expr->data); | |
47 | break; | |
48 | case term: | |
49 | constraintExprData_freeTerm(expr->data); | |
50 | break; | |
51 | default: | |
52 | BADEXIT; | |
53 | } | |
bb25bea6 | 54 | |
55 | expr->data = NULL; | |
d46ce6a4 | 56 | free (expr); |
57 | } | |
58 | else | |
59 | { | |
60 | llcontbug(message("attempted to free null pointer in constraintExpr_free")); | |
61 | } | |
62 | } | |
63 | ||
3aaedf88 | 64 | bool constraintExpr_isLit (constraintExpr expr) |
65 | { | |
dc92450f | 66 | llassert (expr != NULL); |
3aaedf88 | 67 | |
68 | if (expr->kind == term) | |
69 | { | |
70 | constraintTerm term = constraintExprData_termGetTerm (expr->data); | |
71 | if (constraintTerm_isIntLiteral (term) ) | |
72 | { | |
73 | return TRUE; | |
74 | } | |
75 | ||
76 | } | |
77 | return FALSE; | |
78 | } | |
79 | ||
7c9c4a67 | 80 | static bool isZeroBinaryOp (constraintExpr expr) |
81 | { | |
82 | constraintExpr e2; | |
83 | ||
7272a1c1 | 84 | llassert (expr != NULL); /* evans 2001-07-18 */ |
85 | ||
7c9c4a67 | 86 | if (!constraintExpr_isBinaryExpr (expr) ) |
87 | { | |
88 | return FALSE; | |
89 | } | |
90 | ||
91 | ||
92 | e2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
93 | ||
7272a1c1 | 94 | llassert (e2 != NULL); /* evans 2001-07-18 */ |
95 | ||
7c9c4a67 | 96 | if (constraintExpr_isBinaryExpr (e2) ) |
97 | { | |
98 | constraintExpr e1; | |
99 | constraintExprBinaryOpKind op; | |
100 | ||
101 | op = constraintExprData_binaryExprGetOp (e2->data); | |
102 | ||
103 | e1 = constraintExprData_binaryExprGetExpr1(e2->data); | |
104 | ||
105 | if (constraintExpr_isLit(e1) ) | |
106 | { | |
107 | if (constraintExpr_getValue(e1) == 0 ) | |
108 | { | |
109 | return TRUE; | |
110 | } | |
111 | } | |
112 | } | |
113 | return FALSE; | |
114 | } | |
115 | ||
116 | /* change expr + (o - expr) to (expr -expr) */ | |
117 | ||
118 | /*@only@*/ static constraintExpr removeZero (/*@only@*/ /*@returned@*/ constraintExpr expr) | |
119 | { | |
120 | constraintExpr expr1, expr2; | |
121 | ||
122 | constraintExpr temp; | |
123 | ||
124 | constraintExprBinaryOpKind op; | |
125 | ||
126 | constraintExprBinaryOpKind tempOp; | |
127 | ||
128 | if (!isZeroBinaryOp(expr) ) | |
129 | return expr; | |
130 | ||
7272a1c1 | 131 | llassert (expr != NULL); /* evans 2001-07-18 */ |
7c9c4a67 | 132 | |
133 | expr1 = constraintExprData_binaryExprGetExpr1(expr->data); | |
134 | expr2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
135 | op = constraintExprData_binaryExprGetOp(expr->data); | |
136 | ||
7272a1c1 | 137 | llassert( constraintExpr_isBinaryExpr(expr2) ); |
138 | ||
7c9c4a67 | 139 | temp = constraintExprData_binaryExprGetExpr2 (expr2->data); |
140 | temp = constraintExpr_copy (temp); | |
141 | ||
142 | tempOp = constraintExprData_binaryExprGetOp (expr2->data); | |
143 | ||
0c91982e | 144 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 145 | op = tempOp; |
acfb6ad9 | 146 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 147 | { |
0c91982e | 148 | if (tempOp == BINARYOP_PLUS) |
acfb6ad9 | 149 | op = BINARYOP_MINUS; |
150 | else if (tempOp == BINARYOP_MINUS) | |
0c91982e | 151 | op = BINARYOP_PLUS; |
7c9c4a67 | 152 | else |
153 | BADEXIT; | |
154 | } | |
155 | else | |
156 | BADEXIT; | |
157 | ||
7c9c4a67 | 158 | expr->data = constraintExprData_binaryExprSetExpr2(expr->data, temp); |
159 | expr->data = constraintExprData_binaryExprSetOp(expr->data, op); | |
160 | ||
161 | return expr; | |
162 | } | |
163 | ||
3aaedf88 | 164 | |
d46ce6a4 | 165 | /*@only@*/ constraintExpr constraintExpr_propagateConstants (/*@only@*/ constraintExpr expr, |
3aaedf88 | 166 | /*@out@*/ bool * propagate, |
167 | /*@out@*/ int *literal) | |
168 | { | |
169 | constraintExpr expr1; | |
170 | constraintExpr expr2; | |
171 | bool propagate1, propagate2; | |
172 | int literal1, literal2; | |
d46ce6a4 | 173 | constraintExprBinaryOpKind op; |
3aaedf88 | 174 | |
175 | propagate1 = FALSE; | |
176 | propagate2 = FALSE; | |
177 | ||
178 | literal1 = 0; | |
179 | literal2 = 0; | |
180 | ||
181 | *propagate = FALSE; | |
182 | *literal = 0; | |
183 | ||
a779b61e | 184 | |
dc92450f | 185 | llassert (expr != NULL); |
3aaedf88 | 186 | |
b7b694d6 | 187 | /* we simplify unaryExpr elsewhere */ |
d46ce6a4 | 188 | if (expr->kind != binaryexpr) |
3aaedf88 | 189 | return expr; |
190 | ||
d46ce6a4 | 191 | op = constraintExprData_binaryExprGetOp (expr->data); |
3aaedf88 | 192 | |
c3e695ff | 193 | DPRINTF( (message("constraintExpr_propagateConstants: binaryexpr: %s", constraintExpr_unparse(expr) ) ) ); |
7c9c4a67 | 194 | |
195 | expr = removeZero(expr); | |
3aaedf88 | 196 | |
197 | expr1 = constraintExprData_binaryExprGetExpr1(expr->data); | |
198 | expr2 = constraintExprData_binaryExprGetExpr2(expr->data); | |
199 | ||
d46ce6a4 | 200 | expr1 = constraintExpr_copy(expr1); |
201 | expr2 = constraintExpr_copy(expr2); | |
202 | ||
3aaedf88 | 203 | expr1 = constraintExpr_propagateConstants (expr1, &propagate1, &literal1); |
204 | expr2 = constraintExpr_propagateConstants (expr2, &propagate2, &literal2); | |
205 | ||
a779b61e | 206 | expr1 = removeZero(expr1); |
207 | expr2 = removeZero(expr2); | |
208 | ||
209 | ||
3aaedf88 | 210 | *propagate = propagate1 || propagate2; |
7c9c4a67 | 211 | |
0c91982e | 212 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 213 | *literal = literal1 + literal2; |
acfb6ad9 | 214 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 215 | *literal = literal1 - literal2; |
216 | else | |
217 | BADEXIT; | |
218 | ||
3aaedf88 | 219 | if ( constraintExpr_isLit (expr1) && constraintExpr_isLit (expr2) ) |
220 | { | |
b9904f57 | 221 | long t1, t2; |
3aaedf88 | 222 | t1 = constraintExpr_getValue (expr1); |
223 | t2 = constraintExpr_getValue (expr2); | |
7c9c4a67 | 224 | llassert(*propagate == FALSE); |
3aaedf88 | 225 | *propagate = FALSE; |
a8e557d3 | 226 | |
d46ce6a4 | 227 | constraintExpr_free (expr); |
228 | constraintExpr_free (expr1); | |
229 | constraintExpr_free (expr2); | |
230 | ||
0c91982e | 231 | if (op == BINARYOP_PLUS ) |
3aaedf88 | 232 | return (constraintExpr_makeIntLiteral ( (t1+t2) )); |
acfb6ad9 | 233 | else if (op == BINARYOP_MINUS) |
3aaedf88 | 234 | return (constraintExpr_makeIntLiteral ( (t1-t2) )); |
235 | else | |
d46ce6a4 | 236 | BADEXIT; |
3aaedf88 | 237 | } |
d46ce6a4 | 238 | |
239 | ||
3aaedf88 | 240 | if (constraintExpr_isLit (expr1) ) |
241 | { | |
3aaedf88 | 242 | *propagate = TRUE; |
d46ce6a4 | 243 | |
7c9c4a67 | 244 | *literal += constraintExpr_getValue (expr1); |
d46ce6a4 | 245 | |
0c91982e | 246 | if (op == BINARYOP_PLUS) |
7c9c4a67 | 247 | { |
248 | constraintExpr_free(expr1); | |
249 | constraintExpr_free(expr); | |
250 | return expr2; | |
251 | } | |
acfb6ad9 | 252 | else if (op == BINARYOP_MINUS) |
7c9c4a67 | 253 | { |
a779b61e | 254 | |
7c9c4a67 | 255 | constraintExpr temp; |
256 | ||
257 | /* this is an ugly kludge to deal with not | |
258 | having a unary minus operation...*/ | |
a779b61e | 259 | |
7c9c4a67 | 260 | temp = constraintExpr_makeIntLiteral (0); |
261 | temp = constraintExpr_makeSubtractExpr (temp, expr2); | |
262 | ||
263 | constraintExpr_free(expr1); | |
264 | constraintExpr_free(expr); | |
265 | ||
266 | return temp; | |
267 | } | |
7272a1c1 | 268 | else |
269 | { | |
270 | BADBRANCH; /* evans 2001-07-18 */ | |
271 | } | |
3aaedf88 | 272 | } |
273 | ||
3aaedf88 | 274 | if (constraintExpr_isLit (expr2) ) |
275 | { | |
276 | *propagate = TRUE; | |
a8e557d3 | 277 | |
0c91982e | 278 | if ( op == BINARYOP_PLUS ) |
3aaedf88 | 279 | *literal += constraintExpr_getValue (expr2); |
acfb6ad9 | 280 | else if (op == BINARYOP_MINUS) |
3aaedf88 | 281 | *literal -= constraintExpr_getValue (expr2); |
7c9c4a67 | 282 | else |
283 | BADEXIT; | |
284 | ||
d46ce6a4 | 285 | |
286 | constraintExpr_free(expr2); | |
287 | constraintExpr_free(expr); | |
3aaedf88 | 288 | return expr1; |
289 | } | |
3aaedf88 | 290 | |
c3e695ff | 291 | DPRINTF( (message("constraintExpr_propagateConstants returning: %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 292 | |
d46ce6a4 | 293 | expr->data = constraintExprData_binaryExprSetExpr1 (expr->data, expr1); |
294 | expr->data = constraintExprData_binaryExprSetExpr2 (expr->data, expr2); | |
295 | ||
7c9c4a67 | 296 | expr = removeZero(expr); |
3aaedf88 | 297 | return expr; |
298 | } | |
299 | ||
bb25bea6 | 300 | /*@only@*/ static constraintExpr constraintExpr_combineConstants (/*@only@*/ constraintExpr expr ) /*@modifies expr@*/ |
3aaedf88 | 301 | { |
302 | bool propagate; | |
303 | int literal; | |
304 | ||
c3e695ff | 305 | DPRINTF ( (message ("Before combine %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 306 | expr = constraintExpr_propagateConstants (expr, &propagate, &literal); |
307 | ||
308 | ||
309 | if (propagate) | |
310 | { | |
311 | constraintExpr ret; | |
312 | ||
313 | if (literal != 0) | |
314 | { | |
315 | ret = constraintExpr_makeBinaryOpConstraintExprIntLiteral (expr, literal); | |
316 | expr = ret; | |
317 | } | |
318 | } | |
c3e695ff | 319 | DPRINTF ( (message ("After combine %s", constraintExpr_unparse(expr) ) ) ); |
3aaedf88 | 320 | return expr; |
321 | } | |
c3e695ff | 322 | |
dc92450f | 323 | /*@special@*/ |
c3e695ff | 324 | static constraintExpr constraintExpr_alloc (void) /*@post:isnull result->data@*/ |
3aaedf88 | 325 | { |
326 | constraintExpr ret; | |
327 | ret = dmalloc (sizeof (*ret) ); | |
328 | ret->kind = term; | |
329 | ret->data = NULL; | |
330 | return ret; | |
331 | } | |
332 | ||
4ab867d6 | 333 | /*@only@*/ static constraintExprData copyExprData (/*@observer@*/ constraintExprData data, constraintExprKind kind) |
c3e695ff | 334 | { |
335 | constraintExprData ret; | |
336 | llassert(constraintExprData_isDefined(data)); | |
337 | ||
338 | switch (kind) | |
339 | { | |
340 | case binaryexpr: | |
341 | ret = constraintExprData_copyBinaryExpr(data); | |
342 | break; | |
343 | case unaryExpr: | |
344 | ret = constraintExprData_copyUnaryExpr(data); | |
345 | break; | |
346 | case term: | |
347 | ret = constraintExprData_copyTerm(data); | |
348 | break; | |
349 | default: | |
350 | BADEXIT; | |
351 | } | |
352 | return ret; | |
353 | } | |
3aaedf88 | 354 | |
355 | constraintExpr constraintExpr_copy (constraintExpr expr) | |
356 | { | |
357 | constraintExpr ret; | |
358 | ret = constraintExpr_alloc(); | |
359 | ret->kind = expr->kind; | |
c3e695ff | 360 | |
361 | ret->data = copyExprData (expr->data, expr->kind); | |
3aaedf88 | 362 | return ret; |
363 | } | |
364 | ||
365 | ||
28bf4b0b | 366 | /*@only@*/ static constraintExpr oldconstraintExpr_makeTermExprNode ( /*@dependent@*/ exprNode e) |
3aaedf88 | 367 | { |
368 | constraintExpr ret; | |
369 | constraintTerm t; | |
370 | ret = constraintExpr_alloc(); | |
371 | ret->kind = term; | |
372 | ret->data = dmalloc (sizeof *(ret->data) ); | |
373 | t = constraintTerm_makeExprNode (e); | |
374 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
375 | return ret; | |
376 | } | |
377 | ||
28bf4b0b | 378 | constraintExpr constraintExpr_makeExprNode (exprNode e) |
3aaedf88 | 379 | { |
380 | sRef s; | |
381 | constraintExpr ret, ce1, ce2; | |
382 | exprData data; | |
383 | exprNode t, t1, t2; | |
384 | lltok tok; | |
385 | ||
386 | ||
dc92450f | 387 | llassert (e != NULL); |
3aaedf88 | 388 | |
389 | data = e->edata; | |
390 | ||
391 | switch (e->kind) | |
392 | { | |
393 | case XPR_SIZEOF: | |
394 | t = exprData_getSingle (data); | |
395 | s = exprNode_getSref (t); | |
396 | if (sRef_isFixedArray(s) ) | |
397 | { | |
398 | int size; | |
399 | ||
dc92450f | 400 | size = (int) sRef_getArraySize(s); |
3aaedf88 | 401 | ret = constraintExpr_makeIntLiteral (size); |
402 | } | |
403 | else | |
404 | { | |
c3e695ff | 405 | DPRINTF ((message ("could not determine the size of %s", exprNode_unparse (e) ) ) ); |
3aaedf88 | 406 | ret = oldconstraintExpr_makeTermExprNode (e); |
407 | } | |
408 | break; | |
409 | ||
410 | case XPR_OP: | |
c3e695ff | 411 | DPRINTF ((message ("Examining operation %s", exprNode_unparse (e) ) ) ); |
3aaedf88 | 412 | t1 = exprData_getOpA (data); |
413 | t2 = exprData_getOpB (data); | |
414 | tok = exprData_getOpTok (data); | |
415 | ||
416 | if (lltok_isPlus_Op (tok) || lltok_isMinus_Op (tok) ) | |
417 | { | |
418 | ce1 = constraintExpr_makeExprNode (t1); | |
419 | ce2 = constraintExpr_makeExprNode (t2); | |
420 | ret = constraintExpr_parseMakeBinaryOp (ce1, tok, ce2); | |
421 | } | |
7edb30e6 | 422 | /* |
423 | drl 8-11-001 | |
424 | ||
425 | We handle expressions containing sizeof with the rule | |
426 | (sizeof type ) * Expr = Expr | |
427 | ||
428 | This is the total wronge way to do this but... | |
429 | it may be better than nothing | |
430 | */ | |
431 | else if (lltok_isMult(tok) ) | |
3aaedf88 | 432 | { |
7edb30e6 | 433 | if ((t1->kind == XPR_SIZEOF) || (t1->kind == XPR_SIZEOFT) ) |
434 | { | |
435 | ret = constraintExpr_makeExprNode(t2); | |
436 | } | |
437 | else if ((t2->kind == XPR_SIZEOF) || (t2->kind == XPR_SIZEOFT) ) | |
438 | { | |
439 | ret = constraintExpr_makeExprNode(t1); | |
440 | } | |
441 | else | |
442 | { | |
443 | ret = oldconstraintExpr_makeTermExprNode (e); | |
444 | } | |
3aaedf88 | 445 | } |
7edb30e6 | 446 | else |
447 | ret = oldconstraintExpr_makeTermExprNode (e); | |
448 | ||
3aaedf88 | 449 | break; |
450 | case XPR_PARENS: | |
451 | t = exprData_getUopNode (data); | |
452 | ret = constraintExpr_makeExprNode (t); | |
453 | break; | |
454 | ||
455 | case XPR_PREOP: | |
456 | t = exprData_getUopNode (data); | |
457 | tok = exprData_getUopTok (data); | |
458 | if (lltok_isInc_Op (tok) ) | |
459 | { | |
460 | constraintExpr temp; | |
461 | temp = constraintExpr_makeExprNode(t); | |
462 | ret = constraintExpr_makeIncConstraintExpr(temp); | |
463 | } | |
464 | else if (lltok_isDec_Op (tok) ) | |
465 | { | |
466 | constraintExpr temp; | |
467 | temp = constraintExpr_makeExprNode(t); | |
468 | ret = constraintExpr_makeDecConstraintExpr(temp); | |
469 | } | |
470 | else | |
471 | ret = oldconstraintExpr_makeTermExprNode (e); | |
472 | break; | |
473 | ||
474 | case XPR_POSTOP: | |
475 | t = exprData_getUopNode (data); | |
476 | ret = constraintExpr_makeExprNode (t); | |
477 | break; | |
470b7798 | 478 | case XPR_CAST: |
479 | t = exprData_getCastNode (data); | |
480 | ret = constraintExpr_makeExprNode (t); | |
481 | break; | |
482 | case XPR_COMMA: | |
483 | t = exprData_getPairA(data); | |
c3e695ff | 484 | ret = constraintExpr_makeExprNode(t); |
485 | /*@i3434*/ /*I'm not sure if this is right. I'm adding a break to quite LCLint*/ | |
486 | break; | |
3aaedf88 | 487 | default: |
488 | ret = oldconstraintExpr_makeTermExprNode (e); | |
489 | ||
490 | } | |
491 | return ret; | |
492 | } | |
493 | ||
b7b694d6 | 494 | /*@only@*/ constraintExpr constraintExpr_makeTermExprNode (/*@exposed@*/ exprNode e) |
3aaedf88 | 495 | { |
b7b694d6 | 496 | return oldconstraintExpr_makeTermExprNode(e); |
3aaedf88 | 497 | } |
498 | ||
28bf4b0b | 499 | static constraintExpr constraintExpr_makeTerm (/*@only@*/ constraintTerm t) |
920a3797 | 500 | { |
501 | constraintExpr ret; | |
502 | ||
503 | ret = constraintExpr_alloc(); | |
504 | ret->kind = term; | |
505 | ret->data = dmalloc (sizeof *(ret->data) ); | |
a779b61e | 506 | ret->data->term = NULL; |
920a3797 | 507 | ret->data = constraintExprData_termSetTerm (ret->data, t); |
508 | ||
509 | return ret; | |
510 | } | |
3aaedf88 | 511 | |
28bf4b0b | 512 | constraintExpr constraintExpr_makeTermsRef (/*@temp@*/ sRef s) |
3aaedf88 | 513 | { |
514 | constraintExpr ret; | |
515 | constraintTerm t; | |
516 | ret = constraintExpr_alloc(); | |
517 | ret->kind = term; | |
518 | ret->data = dmalloc (sizeof *(ret->data) ); | |
519 | t = constraintTerm_makesRef (s); | |
520 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
521 | return ret; | |
522 | } | |
523 | ||
920a3797 | 524 | /*@special@*/ static constraintExpr makeUnaryOpGeneric (void) /*@allocates result->data@*/ /*@defines result->kind@*/ |
3aaedf88 | 525 | { |
526 | constraintExpr ret; | |
527 | ret = constraintExpr_alloc(); | |
528 | ret->kind = unaryExpr; | |
529 | ret->data = dmalloc ( sizeof *(ret->data) ); | |
a779b61e | 530 | ret->data->unaryOp.expr = constraintExpr_undefined; |
3aaedf88 | 531 | return ret; |
532 | } | |
533 | ||
bb25bea6 | 534 | /*@only@*/ static constraintExpr constraintExpr_makeUnaryOpConstraintExpr (/*@only@*/ constraintExpr cexpr) |
3aaedf88 | 535 | { |
536 | constraintExpr ret; | |
920a3797 | 537 | ret = makeUnaryOpGeneric(); |
a8e557d3 | 538 | |
539 | /*@-uniondef@*/ | |
540 | /*@-compdef@*/ | |
b7b694d6 | 541 | ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr); |
542 | ret->data = constraintExprData_unaryExprSetOp (ret->data, UNARYOP_UNDEFINED); | |
543 | ||
3aaedf88 | 544 | return ret; |
b7b694d6 | 545 | |
a8e557d3 | 546 | /*@=compdef@*/ |
c3e695ff | 547 | /*@=uniondef@*/ |
3aaedf88 | 548 | } |
549 | ||
920a3797 | 550 | |
551 | /*@only@*/ static constraintExpr constraintExpr_makeUnaryOp (/*@only@*/ constraintExpr cexpr, constraintExprUnaryOpKind Op ) | |
552 | { | |
553 | constraintExpr ret; | |
554 | ret = makeUnaryOpGeneric(); | |
555 | ||
556 | ret->data = constraintExprData_unaryExprSetExpr (ret->data, cexpr); | |
557 | ret->data = constraintExprData_unaryExprSetOp (ret->data, Op); | |
558 | ||
559 | return ret; | |
560 | } | |
561 | ||
bb25bea6 | 562 | /*@only@*/ |
563 | static constraintExpr constraintExpr_makeMaxSetConstraintExpr (/*@only@*/ constraintExpr c) | |
3aaedf88 | 564 | { |
565 | constraintExpr ret; | |
920a3797 | 566 | ret = constraintExpr_makeUnaryOp (c, MAXSET); |
3aaedf88 | 567 | return ret; |
568 | } | |
569 | ||
bb25bea6 | 570 | /*@only@*/ |
4ab867d6 | 571 | static constraintExpr constraintExpr_makeUnaryOpExprNode (/*@exposed@*/ exprNode expr) |
3aaedf88 | 572 | { |
573 | constraintExpr ret; | |
574 | constraintExpr sub; | |
575 | sub = constraintExpr_makeExprNode (expr); | |
576 | ret = constraintExpr_makeUnaryOpConstraintExpr(sub); | |
d46ce6a4 | 577 | |
3aaedf88 | 578 | return ret; |
579 | } | |
580 | ||
581 | ||
582 | ||
bb25bea6 | 583 | /*@only@*/ |
28bf4b0b | 584 | static constraintExpr constraintExpr_makeSRefUnaryOp (/*@temp@*/ /*@observer@*/ sRef s, constraintExprUnaryOpKind op) |
3aaedf88 | 585 | { |
586 | constraintExpr ret; | |
587 | constraintExpr t; | |
588 | ||
589 | t = constraintExpr_makeTermsRef (s); | |
590 | ret = constraintExpr_makeUnaryOpConstraintExpr (t); | |
591 | ret->data = constraintExprData_unaryExprSetOp (ret->data, op); | |
d46ce6a4 | 592 | |
3aaedf88 | 593 | return ret; |
594 | } | |
595 | ||
bb25bea6 | 596 | /*@only@*/ |
28bf4b0b | 597 | constraintExpr constraintExpr_makeSRefMaxRead( sRef s) |
470b7798 | 598 | { |
599 | return (constraintExpr_makeSRefUnaryOp (s, MAXREAD) ); | |
600 | } | |
601 | ||
bb25bea6 | 602 | /*@only@*/ |
28bf4b0b | 603 | constraintExpr constraintExpr_makeSRefMaxset ( sRef s) |
3aaedf88 | 604 | { |
605 | return (constraintExpr_makeSRefUnaryOp (s, MAXSET) ); | |
606 | } | |
607 | ||
bb25bea6 | 608 | /*@only@*/ |
3aaedf88 | 609 | constraintExpr constraintExpr_parseMakeUnaryOp (lltok op, constraintExpr cexpr) |
610 | { | |
611 | constraintExpr ret; | |
612 | ret = constraintExpr_makeUnaryOpConstraintExpr ( cexpr); | |
613 | ||
614 | switch (op.tok) | |
615 | { | |
616 | case QMAXSET: | |
617 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXSET); | |
618 | break; | |
619 | case QMAXREAD: | |
620 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD); | |
621 | break; | |
622 | default: | |
dc92450f | 623 | llfatalbug(message("Unhandled Operation in Constraint") ); |
3aaedf88 | 624 | } |
625 | return ret; | |
626 | } | |
627 | ||
bb25bea6 | 628 | /*@only@*/ |
4ab867d6 | 629 | constraintExpr constraintExpr_makeMaxSetExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 630 | { |
631 | constraintExpr ret; | |
632 | ret = constraintExpr_makeExprNode (expr); | |
633 | ||
634 | ret = constraintExpr_makeMaxSetConstraintExpr (ret); | |
635 | ||
dc92450f | 636 | llassert (ret != NULL); |
3aaedf88 | 637 | return ret; |
638 | } | |
639 | ||
bb25bea6 | 640 | /*@only@*/ |
3aaedf88 | 641 | constraintExpr constraintExpr_makeMaxReadExpr (exprNode expr) |
642 | { | |
643 | constraintExpr ret; | |
644 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
645 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MAXREAD); | |
646 | return ret; | |
647 | } | |
648 | ||
15b3d2b2 | 649 | # if 0 |
bb25bea6 | 650 | /*@only@*/ |
28bf4b0b | 651 | /*@unused@*/ static constraintExpr constraintExpr_makeMinSetExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 652 | { |
653 | constraintExpr ret; | |
654 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
655 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MINSET); | |
656 | return ret; | |
657 | } | |
658 | ||
bb25bea6 | 659 | /*@only@*/ |
28bf4b0b | 660 | /*@unused@*/ static constraintExpr constraintExpr_makeMinReadExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 661 | { |
662 | constraintExpr ret; | |
663 | ret = constraintExpr_makeUnaryOpExprNode(expr); | |
664 | ret->data = constraintExprData_unaryExprSetOp (ret->data, MINREAD); | |
665 | return ret; | |
666 | } | |
15b3d2b2 | 667 | # endif |
3aaedf88 | 668 | |
bb25bea6 | 669 | /*@only@*/ |
4ab867d6 | 670 | constraintExpr constraintExpr_makeValueExpr (/*@exposed@*/ exprNode expr) |
3aaedf88 | 671 | { |
672 | constraintExpr ret; | |
673 | ret = constraintExpr_makeExprNode (expr); | |
674 | return ret; | |
675 | } | |
676 | ||
bb25bea6 | 677 | /*@only@*/ |
b9904f57 | 678 | constraintExpr constraintExpr_makeIntLiteral (long i) |
3aaedf88 | 679 | { |
680 | constraintExpr ret; | |
681 | constraintTerm t; | |
682 | ret = constraintExpr_alloc(); | |
683 | ret->kind = term; | |
684 | ret->data = dmalloc (sizeof *(ret->data) ); | |
685 | t = constraintTerm_makeIntLiteral (i); | |
686 | ret->data = constraintExprData_termSetTerm (ret->data, t); | |
687 | return ret; | |
688 | } | |
689 | ||
c3e695ff | 690 | /* |
3aaedf88 | 691 | constraintExpr constraintExpr_makeValueInt (int i) |
692 | { | |
693 | return constraintExpr_makeIntLiteral (i); | |
694 | } | |
c3e695ff | 695 | */ |
3aaedf88 | 696 | |
bb25bea6 | 697 | /*@only@*/ |
28bf4b0b | 698 | /*@special@*/ static constraintExpr constraintExpr_makeBinaryOp (void) |
699 | /*@allocates result->data @*/ /*@sets result->kind @*/ | |
3aaedf88 | 700 | { |
701 | constraintExpr ret; | |
702 | ret = constraintExpr_alloc(); | |
703 | ret->kind = binaryexpr; | |
704 | ret->data = dmalloc ( sizeof *(ret->data) ); | |
a779b61e | 705 | |
706 | ret->data->binaryOp.expr1 = constraintExpr_undefined; | |
707 | ret->data->binaryOp.expr2 = constraintExpr_undefined; | |
708 | ||
3aaedf88 | 709 | return ret; |
710 | } | |
711 | ||
712 | ||
bb25bea6 | 713 | static /*@only@*/ constraintExpr constraintExpr_makeBinaryOpConstraintExpr (/*@only@*/constraintExpr expr1, /*@only@*/ constraintExpr expr2) |
3aaedf88 | 714 | |
715 | { | |
716 | constraintExpr ret; | |
d46ce6a4 | 717 | |
3aaedf88 | 718 | ret = constraintExpr_makeBinaryOp(); |
719 | ret->data = constraintExprData_binaryExprSetExpr1 (ret->data, expr1); | |
720 | ret->data = constraintExprData_binaryExprSetExpr2 (ret->data, expr2); | |
84c9ffbf | 721 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_UNDEFINED); |
3aaedf88 | 722 | return ret; |
723 | } | |
724 | ||
bb25bea6 | 725 | /*@only@*/ |
d46ce6a4 | 726 | constraintExpr constraintExpr_parseMakeBinaryOp (/*@only@*/ constraintExpr expr1, lltok op,/*@only@*/ constraintExpr expr2) |
3aaedf88 | 727 | { |
728 | constraintExpr ret; | |
729 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2); | |
730 | if (op.tok == TPLUS) | |
0c91982e | 731 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 732 | else if (op.tok == TMINUS) |
acfb6ad9 | 733 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS); |
3aaedf88 | 734 | else |
735 | { | |
736 | llassert(FALSE); | |
737 | } | |
738 | return ret; | |
739 | } | |
740 | ||
15b3d2b2 | 741 | # if 0 |
bb25bea6 | 742 | /*@only@*/ |
28bf4b0b | 743 | /*@unused@*/ static constraintExpr constraintExpr_makeBinaryOpExprNode (/*@exposed@*/ exprNode expr1, /*@exposed@*/ exprNode expr2) |
3aaedf88 | 744 | { |
745 | constraintExpr ret; | |
746 | constraintExpr sub1, sub2; | |
747 | sub1 = constraintExpr_makeTermExprNode (expr1); | |
748 | sub2 = constraintExpr_makeTermExprNode (expr2); | |
749 | ret = constraintExpr_makeBinaryOpConstraintExpr(sub1, sub2); | |
750 | return ret; | |
751 | } | |
15b3d2b2 | 752 | # endif |
3aaedf88 | 753 | |
920a3797 | 754 | static /*@only@*/ |
d46ce6a4 | 755 | constraintExpr constraintExpr_makeBinaryOpConstraintExprIntLiteral (/*@only@*/ constraintExpr expr, int literal) |
3aaedf88 | 756 | { |
757 | constraintExpr ret; | |
758 | constraintExpr constExpr; | |
759 | ||
760 | constExpr = constraintExpr_makeIntLiteral (literal); | |
761 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, constExpr); | |
0c91982e | 762 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 763 | return ret; |
764 | } | |
765 | ||
bb25bea6 | 766 | /*@only@*/ |
d46ce6a4 | 767 | constraintExpr constraintExpr_makeDecConstraintExpr (/*@only@*/constraintExpr expr) |
3aaedf88 | 768 | { |
769 | constraintExpr ret; | |
770 | constraintExpr inc; | |
771 | ||
772 | inc = constraintExpr_makeIntLiteral (1); | |
773 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc); | |
acfb6ad9 | 774 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_MINUS); |
3aaedf88 | 775 | return ret; |
776 | } | |
777 | ||
2934b455 | 778 | |
779 | /*@only@*/ constraintExpr constraintExpr_makeSubtractExpr (/*@only@*/ constraintExpr expr, /*@only@*/ constraintExpr addent) | |
780 | { | |
28bf4b0b | 781 | constraintExpr ret; |
2934b455 | 782 | |
783 | DPRINTF ( (message ("Making subtract expression") ) ); | |
784 | ||
28bf4b0b | 785 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent); |
acfb6ad9 | 786 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_MINUS); |
28bf4b0b | 787 | return ret; |
2934b455 | 788 | } |
789 | ||
bb25bea6 | 790 | /*@only@*/ |
2934b455 | 791 | constraintExpr constraintExpr_makeAddExpr (/*@only@*/ |
bb25bea6 | 792 | constraintExpr expr, /*@only@*/ |
2934b455 | 793 | constraintExpr addent) |
3aaedf88 | 794 | { |
28bf4b0b | 795 | constraintExpr ret; |
3aaedf88 | 796 | |
2934b455 | 797 | DPRINTF ( (message ("Doing addTerm simplification") ) ); |
3aaedf88 | 798 | |
28bf4b0b | 799 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, addent); |
0c91982e | 800 | ret->data = constraintExprData_binaryExprSetOp (ret->data, BINARYOP_PLUS); |
28bf4b0b | 801 | return ret; |
3aaedf88 | 802 | } |
803 | ||
2934b455 | 804 | |
bb25bea6 | 805 | /*@only@*/ |
d46ce6a4 | 806 | constraintExpr constraintExpr_makeIncConstraintExpr (/*@only@*/ constraintExpr expr) |
3aaedf88 | 807 | { |
808 | constraintExpr ret; | |
809 | constraintExpr inc; | |
810 | ||
811 | inc = constraintExpr_makeIntLiteral (1); | |
812 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr, inc); | |
0c91982e | 813 | ret->data = constraintExprData_binaryExprSetOp(ret->data, BINARYOP_PLUS); |
3aaedf88 | 814 | return ret; |
815 | } | |
816 | ||
bb25bea6 | 817 | /*@only@*/ |
818 | static cstring constraintExprUnaryOpKind_print (constraintExprUnaryOpKind op) | |
3aaedf88 | 819 | { |
820 | switch (op) | |
821 | { | |
822 | case MAXSET: | |
03d670b6 | 823 | return message("maxSet"); |
3aaedf88 | 824 | case MINSET: |
03d670b6 | 825 | return message("minSet"); |
3aaedf88 | 826 | case MAXREAD: |
03d670b6 | 827 | return message("maxRead"); |
3aaedf88 | 828 | case MINREAD: |
03d670b6 | 829 | return message("minRead"); |
3aaedf88 | 830 | default: |
831 | llassert(FALSE); | |
832 | return message ("<(Unary OP OTHER>"); | |
833 | } | |
834 | } | |
835 | ||
836 | ||
bb25bea6 | 837 | /*@only@*/ |
838 | static cstring constraintExprBinaryOpKind_print (constraintExprBinaryOpKind op) | |
3aaedf88 | 839 | { |
840 | ||
841 | switch (op) | |
842 | { | |
0c91982e | 843 | case BINARYOP_PLUS: |
3aaedf88 | 844 | return message("+"); |
acfb6ad9 | 845 | case BINARYOP_MINUS: |
3aaedf88 | 846 | return message("-"); |
dc92450f | 847 | |
848 | default: | |
849 | llassert(FALSE); | |
850 | return message ("<binary OP Unknown>"); | |
3aaedf88 | 851 | } |
3aaedf88 | 852 | } |
853 | ||
854 | bool constraintExpr_similar (constraintExpr expr1, constraintExpr expr2) | |
855 | { | |
856 | constraintExprKind kind; | |
857 | ||
858 | llassert (expr1 != NULL); | |
859 | llassert (expr2 != NULL); | |
860 | if (expr1->kind != expr2->kind) | |
861 | return FALSE; | |
862 | ||
863 | kind = expr1->kind; | |
864 | ||
865 | switch (kind) | |
866 | { | |
867 | case term: | |
868 | return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data), | |
869 | constraintExprData_termGetTerm(expr2->data) ); | |
c3e695ff | 870 | /*@notreached@*/ break; |
3aaedf88 | 871 | |
872 | case unaryExpr: | |
873 | if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) ) | |
874 | return FALSE; | |
875 | ||
876 | return (constraintExpr_similar ( | |
877 | constraintExprData_unaryExprGetExpr (expr1->data), | |
878 | constraintExprData_unaryExprGetExpr (expr2->data) | |
879 | )); | |
880 | ||
881 | case binaryexpr: | |
882 | if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) ) | |
883 | return FALSE; | |
884 | ||
885 | if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr1 (expr1->data), | |
886 | constraintExprData_binaryExprGetExpr1 (expr2->data)) ) | |
887 | return FALSE; | |
888 | ||
889 | if (! constraintExpr_similar (constraintExprData_binaryExprGetExpr2 (expr1->data), | |
890 | constraintExprData_binaryExprGetExpr2 (expr2->data)) ) | |
891 | return FALSE; | |
892 | else | |
893 | return TRUE; | |
894 | /*@notreached@*/ | |
895 | break; | |
896 | ||
897 | default: | |
898 | llassert(FALSE); | |
899 | return FALSE; | |
900 | } | |
901 | /*@notreached@*/ | |
902 | return FALSE; | |
903 | } | |
904 | ||
905 | bool constraintExpr_same (constraintExpr expr1, constraintExpr expr2) | |
906 | { | |
907 | constraintExprKind kind; | |
908 | ||
909 | llassert (expr1 != NULL); | |
910 | llassert (expr2 != NULL); | |
911 | if (expr1->kind != expr2->kind) | |
912 | return FALSE; | |
913 | ||
914 | kind = expr1->kind; | |
915 | ||
916 | switch (kind) | |
917 | { | |
918 | case term: | |
919 | return constraintTerm_similar (constraintExprData_termGetTerm(expr1->data), | |
920 | constraintExprData_termGetTerm(expr2->data) ); | |
dc92450f | 921 | /*@notreached@*/ break; |
3aaedf88 | 922 | |
923 | case unaryExpr: | |
924 | if (constraintExprData_unaryExprGetOp (expr1->data) != constraintExprData_unaryExprGetOp (expr2->data) ) | |
925 | return FALSE; | |
926 | ||
927 | return (constraintExpr_same ( | |
928 | constraintExprData_unaryExprGetExpr (expr1->data), | |
929 | constraintExprData_unaryExprGetExpr (expr2->data) | |
930 | )); | |
931 | ||
932 | ||
933 | case binaryexpr: | |
934 | if (constraintExprData_binaryExprGetOp (expr1->data) != constraintExprData_binaryExprGetOp (expr2->data) ) | |
935 | return FALSE; | |
936 | ||
937 | if (! constraintExpr_same (constraintExprData_binaryExprGetExpr1 (expr1->data), | |
938 | constraintExprData_binaryExprGetExpr1 (expr2->data)) ) | |
939 | return FALSE; | |
940 | ||
941 | if (! constraintExpr_same (constraintExprData_binaryExprGetExpr2 (expr1->data), | |
942 | constraintExprData_binaryExprGetExpr2 (expr2->data)) ) | |
943 | return FALSE; | |
944 | else | |
945 | return TRUE; | |
dc92450f | 946 | /*@notreached@*/ break; |
3aaedf88 | 947 | |
948 | default: | |
949 | llassert(FALSE); | |
950 | return FALSE; | |
951 | } | |
952 | ||
953 | /*@notreached@*/ | |
954 | BADEXIT; | |
955 | } | |
956 | ||
bb25bea6 | 957 | bool constraintExpr_search (/*@observer@*/ constraintExpr c, /*@observer@*/ constraintExpr old) |
3aaedf88 | 958 | { |
959 | bool ret = FALSE; | |
960 | constraintExprKind kind; | |
961 | constraintExpr temp; | |
962 | ||
963 | if ( constraintExpr_similar (c, old) ) | |
964 | { | |
bb25bea6 | 965 | DPRINTF((message ("Found %q", |
3aaedf88 | 966 | constraintExpr_unparse(old) |
967 | ))); | |
968 | return TRUE; | |
969 | } | |
970 | ||
971 | kind = c->kind; | |
972 | ||
973 | switch (kind) | |
974 | { | |
975 | case term: | |
976 | break; | |
977 | case unaryExpr: | |
978 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
979 | ret = ret || constraintExpr_search (temp, old); | |
980 | break; | |
981 | case binaryexpr: | |
982 | ||
983 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
984 | ret = ret || constraintExpr_search(temp, old); | |
985 | ||
986 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
987 | ret = ret || constraintExpr_search(temp, old); | |
988 | break; | |
989 | default: | |
990 | llassert(FALSE); | |
991 | } | |
992 | return ret; | |
993 | ||
994 | } | |
995 | ||
996 | ||
28bf4b0b | 997 | /*@only@*/ constraintExpr constraintExpr_searchandreplace (/*@only@*/ /*@unique@*/ constraintExpr c, /*@temp@*/ constraintExpr old, /*@temp@*/ constraintExpr newExpr ) |
3aaedf88 | 998 | { |
999 | constraintExprKind kind; | |
1000 | constraintExpr temp; | |
1001 | ||
1002 | if ( constraintExpr_similar (c, old) ) | |
1003 | { | |
bb25bea6 | 1004 | |
470b7798 | 1005 | DPRINTF((message ("Replacing %s with %s", |
28bf4b0b | 1006 | constraintExpr_unparse(old), constraintExpr_unparse(newExpr) |
3aaedf88 | 1007 | ))); |
bb25bea6 | 1008 | constraintExpr_free(c); |
28bf4b0b | 1009 | return constraintExpr_copy (newExpr); |
3aaedf88 | 1010 | } |
1011 | ||
1012 | kind = c->kind; | |
1013 | ||
1014 | switch (kind) | |
1015 | { | |
1016 | case term: | |
1017 | break; | |
1018 | case unaryExpr: | |
1019 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1020 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1021 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1022 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); |
1023 | break; | |
1024 | case binaryexpr: | |
1025 | ||
1026 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
d46ce6a4 | 1027 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1028 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1029 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); |
1030 | ||
1031 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1032 | temp = constraintExpr_copy(temp); |
28bf4b0b | 1033 | temp = constraintExpr_searchandreplace (temp, old, newExpr); |
3aaedf88 | 1034 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); |
1035 | break; | |
1036 | default: | |
1037 | llassert(FALSE); | |
1038 | } | |
1039 | return c; | |
1040 | ||
1041 | } | |
1042 | ||
bb25bea6 | 1043 | static constraintExpr constraintExpr_simplifyChildren (/*@returned@*/ constraintExpr c) |
3aaedf88 | 1044 | { |
1045 | constraintExprKind kind; | |
1046 | constraintExpr temp; | |
1047 | ||
1048 | kind = c->kind; | |
1049 | ||
1050 | switch (kind) | |
1051 | { | |
1052 | case term: | |
1053 | break; | |
1054 | case unaryExpr: | |
1055 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1056 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1057 | temp = constraintExpr_simplify (temp); |
1058 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); | |
1059 | break; | |
1060 | case binaryexpr: | |
c3e695ff | 1061 | DPRINTF((message("constraintExpr_simplfiyChildren: simplify binary expression: %s",constraintExpr_unparse(c) ) ) ); |
3aaedf88 | 1062 | temp = constraintExprData_binaryExprGetExpr1 (c->data); |
d46ce6a4 | 1063 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1064 | temp = constraintExpr_simplify (temp); |
1065 | ||
1066 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); | |
1067 | ||
1068 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1069 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1070 | temp = constraintExpr_simplify (temp); |
1071 | ||
1072 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); | |
1073 | break; | |
1074 | default: | |
1075 | llassert(FALSE); | |
1076 | } | |
1077 | return c; | |
1078 | ||
1079 | } | |
1080 | ||
1081 | ||
28bf4b0b | 1082 | constraintExpr constraintExpr_setFileloc (/*@returned@*/ constraintExpr c, fileloc loc) /*@modifies c @*/ |
3aaedf88 | 1083 | { |
1084 | constraintTerm t; | |
1085 | constraintExpr temp; | |
1086 | ||
dc92450f | 1087 | llassert(c != NULL); |
3aaedf88 | 1088 | |
1089 | switch (c->kind) | |
1090 | { | |
1091 | case term: | |
1092 | t = constraintExprData_termGetTerm (c->data); | |
d46ce6a4 | 1093 | t = constraintTerm_copy(t); |
3aaedf88 | 1094 | t = constraintTerm_setFileloc (t, loc); |
1095 | c->data = constraintExprData_termSetTerm (c->data, t); | |
1096 | break; | |
1097 | case binaryexpr: | |
1098 | ||
1099 | temp = constraintExprData_binaryExprGetExpr1 (c->data); | |
d46ce6a4 | 1100 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1101 | temp = constraintExpr_setFileloc (temp, loc); |
1102 | c->data = constraintExprData_binaryExprSetExpr1 (c->data, temp); | |
1103 | ||
1104 | temp = constraintExprData_binaryExprGetExpr2 (c->data); | |
d46ce6a4 | 1105 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1106 | temp = constraintExpr_setFileloc (temp, loc); |
1107 | c->data = constraintExprData_binaryExprSetExpr2 (c->data, temp); | |
1108 | break; | |
1109 | case unaryExpr: | |
1110 | temp = constraintExprData_unaryExprGetExpr (c->data); | |
d46ce6a4 | 1111 | temp = constraintExpr_copy(temp); |
3aaedf88 | 1112 | temp = constraintExpr_setFileloc (temp, loc); |
1113 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp); | |
1114 | break; | |
1115 | } | |
1116 | return c; | |
1117 | } | |
1118 | ||
bb25bea6 | 1119 | static /*@only@*/ constraintExpr constraintExpr_simplifybinaryExpr (/*@only@*/constraintExpr c) |
3aaedf88 | 1120 | { |
1121 | constraintExpr e1, e2; | |
7c9c4a67 | 1122 | constraintExprBinaryOpKind op; |
1123 | ||
3aaedf88 | 1124 | e1 = constraintExprData_binaryExprGetExpr1 (c->data); |
1125 | e2 = constraintExprData_binaryExprGetExpr2 (c->data); | |
1126 | ||
1127 | if (constraintExpr_canGetValue (e1) && constraintExpr_canGetValue(e2) ) | |
1128 | { | |
b9904f57 | 1129 | long i; |
3aaedf88 | 1130 | |
1131 | i = constraintExpr_getValue(e1) + constraintExpr_getValue (e2); | |
d46ce6a4 | 1132 | constraintExpr_free(c); |
3aaedf88 | 1133 | c = constraintExpr_makeIntLiteral (i); |
3aaedf88 | 1134 | } |
7c9c4a67 | 1135 | else |
1136 | { | |
1137 | op = constraintExprData_binaryExprGetOp (c->data); | |
acfb6ad9 | 1138 | if (op == BINARYOP_MINUS) |
7c9c4a67 | 1139 | if (constraintExpr_similar(e1, e2) ) |
1140 | { | |
1141 | constraintExpr_free(c); | |
1142 | c = constraintExpr_makeIntLiteral (0); | |
1143 | } | |
1144 | } | |
1145 | ||
3aaedf88 | 1146 | return c; |
1147 | } | |
1148 | ||
bb25bea6 | 1149 | /* |
1150 | this thing takes the lexpr and expr of a constraint and modifies lexpr | |
1151 | and returns a (possiblly new) value for expr | |
1152 | */ | |
1153 | /* 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 */ | |
1154 | ||
1155 | /* the approach is a little Kludgy but seems to work. I should probably use something cleaner at some point ... */ | |
1156 | ||
1157 | ||
1158 | /*@only@*/ constraintExpr constraintExpr_solveBinaryExpr (constraintExpr lexpr, /*@only@*/ constraintExpr expr) | |
3aaedf88 | 1159 | { |
1160 | constraintExpr expr1, expr2; | |
1161 | constraintExprBinaryOpKind op; | |
1162 | ||
1163 | if (lexpr->kind != binaryexpr) | |
1164 | return expr; | |
1165 | ||
1166 | expr2 = constraintExprData_binaryExprGetExpr2 (lexpr->data); | |
1167 | expr1 = constraintExprData_binaryExprGetExpr1 (lexpr->data); | |
bb25bea6 | 1168 | |
3aaedf88 | 1169 | op = constraintExprData_binaryExprGetOp (lexpr->data); |
1170 | ||
bb25bea6 | 1171 | expr1 = constraintExpr_copy(expr1); |
1172 | expr2 = constraintExpr_copy(expr2); | |
1173 | ||
b7b694d6 | 1174 | /* drl possible problem : warning make sure this works */ |
1175 | ||
1176 | lexpr->kind = expr1->kind; | |
1177 | sfree (lexpr->data); | |
1178 | ||
1179 | lexpr->data = copyExprData (expr1->data, expr1->kind); | |
1180 | constraintExpr_free(expr1); | |
1181 | ||
0c91982e | 1182 | if (op == BINARYOP_PLUS) |
b7b694d6 | 1183 | expr = constraintExpr_makeSubtractExpr (expr, expr2); |
acfb6ad9 | 1184 | else if (op == BINARYOP_MINUS) |
b7b694d6 | 1185 | expr = constraintExpr_makeAddExpr (expr, expr2); |
1186 | else | |
1187 | BADEXIT; | |
1188 | ||
1189 | ||
1190 | return expr; | |
bb25bea6 | 1191 | |
c3e695ff | 1192 | /* |
1193 | #warning this needs to be checked | |
1194 | expr = constraintExpr_solveBinaryExpr (expr1, expr); | |
1195 | ||
1196 | expr = constraintExpr_solveBinaryExpr (expr2, expr); | |
1197 | return expr; | |
1198 | */ | |
3aaedf88 | 1199 | } |
1200 | ||
bb25bea6 | 1201 | static /*@only@*/ constraintExpr constraintExpr_simplifyunaryExpr (/*@only@*/ constraintExpr c) |
3aaedf88 | 1202 | { |
1203 | constraintExpr exp; | |
1204 | ||
1205 | llassert (c->kind == unaryExpr); | |
1206 | ||
d30bc0c7 | 1207 | DPRINTF ((message ("Doing constraintExpr_simplifyunaryExpr:%s", constraintExpr_unparse (c) ) ) ); |
3aaedf88 | 1208 | |
1209 | if ( (constraintExprData_unaryExprGetOp (c->data) != MAXSET) && | |
1210 | (constraintExprData_unaryExprGetOp (c->data) != MAXREAD) ) | |
1211 | { | |
1212 | return c; | |
1213 | } | |
3aaedf88 | 1214 | |
1215 | exp = constraintExprData_unaryExprGetExpr (c->data); | |
a779b61e | 1216 | exp = constraintExpr_copy(exp); |
1217 | ||
3aaedf88 | 1218 | if (exp->kind == term) |
1219 | { | |
1220 | constraintTerm cterm; | |
1221 | ||
1222 | cterm = constraintExprData_termGetTerm (exp->data); | |
1223 | ||
1224 | if (constraintTerm_isStringLiteral(cterm) ) | |
1225 | { | |
1226 | cstring val; | |
1227 | val = constraintTerm_getStringLiteral (cterm); | |
1228 | if (constraintExprData_unaryExprGetOp (c->data) == MAXSET) | |
1229 | { | |
d46ce6a4 | 1230 | constraintExpr temp; |
1231 | ||
28bf4b0b | 1232 | temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) ); |
d46ce6a4 | 1233 | cstring_free(val); |
1234 | constraintExpr_free(c); | |
a779b61e | 1235 | constraintExpr_free(exp); |
1236 | ||
d46ce6a4 | 1237 | return temp; |
a779b61e | 1238 | |
3aaedf88 | 1239 | } |
1240 | if (constraintExprData_unaryExprGetOp (c->data) == MAXREAD) | |
1241 | { | |
d46ce6a4 | 1242 | constraintExpr temp; |
1243 | ||
28bf4b0b | 1244 | temp = constraintExpr_makeIntLiteral ((int)strlen (cstring_toCharsSafe(val) ) ); |
d46ce6a4 | 1245 | cstring_free(val); |
1246 | constraintExpr_free(c); | |
a779b61e | 1247 | constraintExpr_free(exp); |
1248 | ||
d46ce6a4 | 1249 | return temp; |
3aaedf88 | 1250 | } |
1251 | BADEXIT; | |
1252 | } | |
d30bc0c7 | 1253 | |
b7b694d6 | 1254 | /* slight Kludge to hanlde var [] = { , , }; |
1255 | ** type syntax I don't think this is sounds but it should be good | |
1256 | ** enough. The C stanrad is very confusing about initialization | |
1257 | ** -- DRL 7/25/01 | |
1258 | */ | |
d30bc0c7 | 1259 | |
1260 | if (constraintTerm_isInitBlock(cterm) ) | |
1261 | { | |
1262 | constraintExpr temp; | |
1263 | int len; | |
1264 | ||
1265 | len = constraintTerm_getInitBlockLength(cterm); | |
1266 | ||
1267 | temp = constraintExpr_makeIntLiteral (len ); | |
1268 | ||
1269 | constraintExpr_free(c); | |
1270 | DPRINTF(( message("Changed too %q", constraintExpr_print(temp) | |
1271 | ) )); | |
a779b61e | 1272 | constraintExpr_free(exp); |
d30bc0c7 | 1273 | return temp; |
1274 | } | |
1275 | ||
a779b61e | 1276 | constraintExpr_free(exp); |
3aaedf88 | 1277 | return c; |
1278 | } | |
1279 | ||
1280 | if (exp->kind != binaryexpr) | |
a779b61e | 1281 | { |
1282 | constraintExpr_free(exp); | |
1283 | return c; | |
1284 | } | |
1285 | ||
0c91982e | 1286 | if (constraintExprData_binaryExprGetOp (exp->data) == BINARYOP_PLUS ) |
3aaedf88 | 1287 | { |
1288 | ||
b7b694d6 | 1289 | /* if (constraintExpr_canGetValue (constraintExprData_binaryExprGetExpr2 (exp->data) ) ) */ |
3aaedf88 | 1290 | { |
1291 | ||
4ab867d6 | 1292 | constraintExpr temp, temp2; |
3aaedf88 | 1293 | |
1294 | DPRINTF ( (message ("Doing fancy simplification") ) ); | |
1295 | ||
1296 | temp = constraintExprData_binaryExprGetExpr2 (exp->data); | |
1297 | ||
1298 | temp2 = constraintExprData_binaryExprGetExpr1 (exp->data); | |
d46ce6a4 | 1299 | |
1300 | temp2 = constraintExpr_copy(temp2); | |
3aaedf88 | 1301 | c->data = constraintExprData_unaryExprSetExpr (c->data, temp2); |
1302 | ||
1303 | ||
bb25bea6 | 1304 | temp = constraintExpr_copy (temp); |
1305 | ||
2934b455 | 1306 | c = constraintExpr_makeSubtractExpr (c, temp); |
3aaedf88 | 1307 | |
4ab867d6 | 1308 | DPRINTF ( (message ("Done fancy simplification:%s", constraintExpr_unparse (c) ) ) ); |
3aaedf88 | 1309 | } |
1310 | } | |
1311 | ||
a779b61e | 1312 | DPRINTF ( (message ("constraintExpr_simplifyUnaryExpr: Done simplification:%s", constraintExpr_unparse (c) ) ) ); |
1313 | ||
1314 | constraintExpr_free(exp); | |
3aaedf88 | 1315 | return c; |
1316 | } | |
1317 | ||
1318 | ||
bb25bea6 | 1319 | /*@only@*/ constraintExpr constraintExpr_simplify (/*@only@*/ constraintExpr c) |
3aaedf88 | 1320 | { |
1321 | constraintExprKind kind; | |
bb25bea6 | 1322 | constraintExpr ret; |
3aaedf88 | 1323 | constraintTerm t; |
3aaedf88 | 1324 | |
c3e695ff | 1325 | DPRINTF ( (message ("Doing constraintExpr_simplify:%s", constraintExpr_unparse (c) ) ) ); |
bb25bea6 | 1326 | |
3aaedf88 | 1327 | |
bb25bea6 | 1328 | /*@i22*/ |
3aaedf88 | 1329 | |
bb25bea6 | 1330 | /*I think this is an LCLint bug */ |
1331 | ||
1332 | ret = constraintExpr_copy(c); | |
1333 | ||
1334 | constraintExpr_free(c); | |
1335 | ||
1336 | ret = constraintExpr_simplifyChildren (ret); | |
1337 | ||
1338 | ret = constraintExpr_combineConstants (ret); | |
1339 | ||
1340 | ret = constraintExpr_simplifyChildren (ret); | |
1341 | ||
1342 | ||
1343 | kind = ret->kind; | |
3aaedf88 | 1344 | |
1345 | switch (kind) | |
1346 | { | |
1347 | case term: | |
bb25bea6 | 1348 | t = constraintExprData_termGetTerm (ret->data); |
d46ce6a4 | 1349 | t = constraintTerm_copy(t); |
3aaedf88 | 1350 | t = constraintTerm_simplify (t); |
bb25bea6 | 1351 | ret->data = constraintExprData_termSetTerm (ret->data, t); |
3aaedf88 | 1352 | break; |
1353 | case unaryExpr: | |
bb25bea6 | 1354 | ret = constraintExpr_simplifyunaryExpr (ret); |
3aaedf88 | 1355 | break; |
1356 | case binaryexpr: | |
bb25bea6 | 1357 | ret = constraintExpr_simplifybinaryExpr (ret); |
3aaedf88 | 1358 | break; |
1359 | default: | |
1360 | llassert(FALSE); | |
bb25bea6 | 1361 | } |
1362 | ||
1363 | DPRINTF ( (message ("constraintExpr_simplify returning :%s", constraintExpr_unparse (ret) ) ) ); | |
1364 | return ret; | |
3aaedf88 | 1365 | |
1366 | } | |
1367 | ||
bb25bea6 | 1368 | /*@only@*/ |
4ab867d6 | 1369 | cstring constraintExpr_unparse (/*@temp@*/ /*@observer@*/ constraintExpr ex) /*@*/ |
3aaedf88 | 1370 | { |
1371 | cstring st; | |
1372 | constraintExprKind kind; | |
1373 | ||
1374 | llassert (ex != NULL); | |
1375 | ||
1376 | kind = ex->kind; | |
1377 | ||
1378 | switch (kind) | |
1379 | { | |
1380 | case term: | |
a779b61e | 1381 | |
1382 | if (context_getFlag (FLG_PARENCONSTRAINT) ) | |
1383 | { | |
1384 | st = message ("(%q) ", constraintTerm_print (constraintExprData_termGetTerm (ex->data))); | |
1385 | } | |
1386 | else | |
1387 | { | |
1388 | st = message ("%q", constraintTerm_print (constraintExprData_termGetTerm (ex->data))); | |
1389 | } | |
3aaedf88 | 1390 | break; |
1391 | case unaryExpr: | |
a779b61e | 1392 | st = message ("%q(%q)", |
1393 | constraintExprUnaryOpKind_print (constraintExprData_unaryExprGetOp (ex->data) ), | |
3aaedf88 | 1394 | constraintExpr_unparse (constraintExprData_unaryExprGetExpr (ex->data) ) |
1395 | ); | |
1396 | break; | |
1397 | case binaryexpr: | |
a779b61e | 1398 | if (context_getFlag (FLG_PARENCONSTRAINT) ) |
1399 | { | |
1400 | st = message ("(%q) %q (%q)", | |
3aaedf88 | 1401 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ), |
1402 | constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data) | |
1403 | ), | |
1404 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) ) | |
1405 | ); | |
a779b61e | 1406 | } |
1407 | else | |
1408 | { | |
1409 | st = message ("%q %q %q", | |
1410 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr1 (ex->data) ), | |
1411 | constraintExprBinaryOpKind_print (constraintExprData_binaryExprGetOp (ex->data) | |
1412 | ), | |
1413 | constraintExpr_unparse (constraintExprData_binaryExprGetExpr2 (ex->data) ) | |
1414 | ); | |
1415 | } | |
1416 | ||
3aaedf88 | 1417 | break; |
1418 | default: | |
1419 | llassert(FALSE); | |
1420 | st = message ("error"); | |
1421 | ||
1422 | } | |
1423 | ||
1424 | DPRINTF((message ("constraintExpr_unparse: '%s'",st) ) ); | |
1425 | return st; | |
1426 | } | |
1427 | ||
1428 | constraintExpr constraintExpr_doSRefFixBaseParam (/*@returned@*/ constraintExpr expr, exprNodeList arglist) | |
1429 | { | |
1430 | constraintTerm Term; | |
1431 | constraintExprKind kind; | |
1432 | constraintExpr expr1, expr2; | |
1433 | constraintExprData data; | |
1434 | llassert (expr != NULL); | |
1435 | ||
1436 | data = expr->data; | |
1437 | ||
1438 | kind = expr->kind; | |
1439 | ||
1440 | switch (kind) | |
1441 | { | |
1442 | case term: | |
1443 | Term = constraintExprData_termGetTerm(data); | |
d46ce6a4 | 1444 | Term = constraintTerm_copy(Term); |
1445 | ||
3aaedf88 | 1446 | Term = constraintTerm_doSRefFixBaseParam (Term, arglist); |
1447 | data = constraintExprData_termSetTerm(data, Term); | |
1448 | break; | |
1449 | case unaryExpr: | |
1450 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1451 | expr1 = constraintExpr_copy(expr1); |
1452 | ||
3aaedf88 | 1453 | expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist); |
1454 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1455 | break; | |
1456 | case binaryexpr: | |
1457 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1458 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1459 | ||
d46ce6a4 | 1460 | expr1 = constraintExpr_copy(expr1); |
1461 | expr2 = constraintExpr_copy(expr2); | |
1462 | ||
3aaedf88 | 1463 | expr1 = constraintExpr_doSRefFixBaseParam (expr1, arglist); |
1464 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1465 | expr2 = constraintExpr_doSRefFixBaseParam (expr2, arglist); | |
1466 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1467 | ||
1468 | break; | |
1469 | default: | |
1470 | llassert(FALSE); | |
1471 | data = NULL; | |
1472 | } | |
1473 | return expr; | |
1474 | } | |
1475 | ||
d46ce6a4 | 1476 | /*@only@*/ constraintExpr constraintExpr_doSRefFixConstraintParam (/*@only@*/ constraintExpr expr, exprNodeList arglist) /*@modifies expr@*/ |
3aaedf88 | 1477 | { |
1478 | constraintExprKind kind; | |
1479 | constraintExpr expr1, expr2; | |
1480 | constraintExprData data; | |
1481 | llassert (expr != NULL); | |
1482 | ||
1483 | data = expr->data; | |
1484 | ||
1485 | kind = expr->kind; | |
1486 | ||
1487 | switch (kind) | |
1488 | { | |
1489 | case term: | |
c3e695ff | 1490 | expr = doSRefFixConstraintParamTerm (expr, arglist); |
3aaedf88 | 1491 | break; |
1492 | case unaryExpr: | |
1493 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1494 | expr1 = constraintExpr_copy(expr1); |
3aaedf88 | 1495 | expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist); |
1496 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1497 | break; | |
1498 | case binaryexpr: | |
1499 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1500 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1501 | ||
d46ce6a4 | 1502 | expr1 = constraintExpr_copy(expr1); |
1503 | expr2 = constraintExpr_copy(expr2); | |
1504 | ||
3aaedf88 | 1505 | expr1 = constraintExpr_doSRefFixConstraintParam (expr1, arglist); |
1506 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1507 | expr2 = constraintExpr_doSRefFixConstraintParam (expr2, arglist); | |
1508 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1509 | ||
1510 | break; | |
1511 | default: | |
1512 | llassert(FALSE); | |
1513 | data = NULL; | |
1514 | } | |
1515 | return expr; | |
1516 | } | |
1517 | ||
28bf4b0b | 1518 | /*@only@*/ constraintExpr constraintExpr_doFixResult (/*@only@*/ constraintExpr expr, /*@observer@*/ exprNode fcnCall) |
3aaedf88 | 1519 | { |
1520 | constraintExprKind kind; | |
1521 | constraintExpr expr1, expr2; | |
1522 | constraintExprData data; | |
1523 | llassert (expr != NULL); | |
1524 | ||
1525 | data = expr->data; | |
1526 | ||
1527 | kind = expr->kind; | |
1528 | ||
1529 | switch (kind) | |
1530 | { | |
1531 | case term: | |
c3e695ff | 1532 | expr = doFixResultTerm (expr, fcnCall); |
3aaedf88 | 1533 | break; |
1534 | case unaryExpr: | |
1535 | expr1 = constraintExprData_unaryExprGetExpr (data); | |
d46ce6a4 | 1536 | expr1 = constraintExpr_copy(expr1); |
1537 | ||
3aaedf88 | 1538 | expr1 = constraintExpr_doFixResult (expr1, fcnCall); |
1539 | data = constraintExprData_unaryExprSetExpr (data, expr1); | |
1540 | break; | |
1541 | case binaryexpr: | |
1542 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1543 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1544 | ||
d46ce6a4 | 1545 | expr1 = constraintExpr_copy(expr1); |
1546 | expr2 = constraintExpr_copy(expr2); | |
1547 | ||
3aaedf88 | 1548 | expr1 = constraintExpr_doFixResult (expr1, fcnCall); |
1549 | data = constraintExprData_binaryExprSetExpr1 (data, expr1); | |
1550 | expr2 = constraintExpr_doFixResult (expr2, fcnCall); | |
1551 | data = constraintExprData_binaryExprSetExpr2 (data, expr2); | |
1552 | ||
1553 | break; | |
1554 | default: | |
1555 | llassert(FALSE); | |
1556 | data = NULL; | |
1557 | } | |
1558 | return expr; | |
1559 | } | |
1560 | ||
dc92450f | 1561 | cstring constraintExpr_print (constraintExpr expr) /*@*/ |
3aaedf88 | 1562 | { |
b9904f57 | 1563 | return constraintExpr_unparse (expr); |
3aaedf88 | 1564 | } |
1565 | ||
dc92450f | 1566 | bool constraintExpr_hasMaxSet (constraintExpr expr) /*@*/ |
3aaedf88 | 1567 | { |
1568 | cstring t; | |
1569 | ||
1570 | t = constraintExpr_unparse(expr); | |
1571 | ||
03d670b6 | 1572 | if (cstring_containsLit(t, "maxSet") != NULL ) |
d46ce6a4 | 1573 | { |
1574 | cstring_free(t); | |
1575 | return (TRUE); | |
1576 | } | |
c3e695ff | 1577 | else |
d46ce6a4 | 1578 | { |
1579 | cstring_free(t); | |
1580 | return FALSE; | |
1581 | } | |
3aaedf88 | 1582 | } |
1583 | ||
1584 | ||
1585 | ||
1586 | /*returns 1 0 -1 like strcmp | |
1587 | 1 => expr1 > expr2 | |
1588 | 0 => expr1 == expr2 | |
1589 | -1 => expr1 < expr2 | |
1590 | */ | |
b9904f57 | 1591 | |
3aaedf88 | 1592 | int constraintExpr_compare (constraintExpr expr1, constraintExpr expr2) |
1593 | { | |
b9904f57 | 1594 | long value1, value2; |
3aaedf88 | 1595 | |
1596 | if (constraintExpr_similar (expr1, expr2) ) | |
1597 | { | |
1598 | return 0; | |
1599 | } | |
b9904f57 | 1600 | |
3aaedf88 | 1601 | value1 = constraintExpr_getValue(expr1); |
1602 | value2 = constraintExpr_getValue(expr2); | |
1603 | ||
1604 | if (value1 > value2) | |
1605 | return 1; | |
1606 | ||
1607 | if (value1 == value2) | |
1608 | return 0; | |
1609 | ||
1610 | else | |
1611 | return -1; | |
1612 | } | |
1613 | ||
b9904f57 | 1614 | long constraintExpr_getValue (constraintExpr expr) |
3aaedf88 | 1615 | { |
1616 | llassert (expr->kind == term); | |
b9904f57 | 1617 | return (constraintTerm_getValue (constraintExprData_termGetTerm (expr->data))); |
3aaedf88 | 1618 | } |
1619 | ||
1620 | bool constraintExpr_canGetValue (constraintExpr expr) | |
1621 | { | |
1622 | switch (expr->kind) | |
1623 | { | |
1624 | case term: | |
1625 | return constraintTerm_canGetValue (constraintExprData_termGetTerm (expr->data) ); | |
1626 | default: | |
1627 | return FALSE; | |
1628 | ||
1629 | } | |
c3e695ff | 1630 | |
1631 | BADEXIT; | |
3aaedf88 | 1632 | } |
1633 | ||
3aaedf88 | 1634 | fileloc constraintExpr_getFileloc (constraintExpr expr) |
1635 | { | |
1636 | constraintExpr e; | |
1637 | constraintTerm t; | |
1638 | constraintExprKind kind; | |
1639 | ||
1640 | kind = expr->kind; | |
1641 | ||
1642 | switch (kind) | |
1643 | { | |
1644 | case term: | |
1645 | t = constraintExprData_termGetTerm (expr->data); | |
1646 | return (constraintTerm_getFileloc (t) ); | |
c3e695ff | 1647 | /*@notreached@*/ |
3aaedf88 | 1648 | break; |
1649 | case unaryExpr: | |
1650 | e = constraintExprData_unaryExprGetExpr (expr->data); | |
1651 | return (constraintExpr_getFileloc (e) ); | |
c3e695ff | 1652 | /*@notreached@*/ |
3aaedf88 | 1653 | break; |
1654 | case binaryexpr: | |
1655 | e = constraintExprData_binaryExprGetExpr1 (expr->data); | |
1656 | return (constraintExpr_getFileloc (e) ); | |
c3e695ff | 1657 | /*@notreached@*/ |
1658 | break; | |
3aaedf88 | 1659 | } |
1660 | llassert (FALSE); | |
3aaedf88 | 1661 | return (fileloc_undefined); |
1662 | } | |
1663 | ||
c3e695ff | 1664 | /*drl moved from constriantTerm.c 5/20/001*/ |
4ab867d6 | 1665 | static /*@only@*/ constraintExpr |
1666 | doFixResultTerm (/*@only@*/ constraintExpr e, /*@exposed@*/ exprNode fcnCall) | |
c3e695ff | 1667 | { |
1668 | constraintTerm t; | |
1669 | sRef s; | |
1670 | /*maybe this should move to cosntraintExpr.c -drl7x 5/18/01*/ | |
a779b61e | 1671 | /*@i22*/ |
1672 | ||
1673 | constraintExprData data = e->data; | |
1674 | constraintExprKind kind = e->kind; | |
c3e695ff | 1675 | |
1676 | constraintExpr ret; | |
1677 | ||
1678 | llassert(kind == term); | |
1679 | ||
1680 | t = constraintExprData_termGetTerm (data); | |
28bf4b0b | 1681 | llassert (constraintTerm_isDefined(t) ); |
c3e695ff | 1682 | |
1683 | ret = e; | |
a8e557d3 | 1684 | switch (constraintTerm_getKind(t) ) |
c3e695ff | 1685 | { |
1686 | case EXPRNODE: | |
1687 | break; | |
1688 | case INTLITERAL: | |
1689 | break; | |
1690 | ||
1691 | case SREF: | |
a8e557d3 | 1692 | s = constraintTerm_getSRef(t); |
c3e695ff | 1693 | if (sRef_isResult (s)) |
1694 | { | |
1695 | ret = constraintExpr_makeExprNode(fcnCall); | |
4ab867d6 | 1696 | constraintExpr_free(e); |
1697 | e = NULL; | |
1698 | } | |
1699 | else | |
1700 | { | |
1701 | e = NULL; | |
c3e695ff | 1702 | } |
1703 | break; | |
1704 | default: | |
1705 | BADEXIT; | |
1706 | } | |
1707 | ||
1708 | return ret; | |
1709 | ||
1710 | } | |
1711 | ||
1712 | /*drl moved from constriantTerm.c 5/20/001*/ | |
d46ce6a4 | 1713 | /*@only@*/ static constraintExpr |
4ab867d6 | 1714 | doSRefFixConstraintParamTerm (/*@only@*/ constraintExpr e, /*@observer@*/ /*@temp@*/ exprNodeList arglist) |
c3e695ff | 1715 | { |
1716 | constraintTerm t; | |
1717 | ||
d46ce6a4 | 1718 | constraintExprData data = e->data; |
c3e695ff | 1719 | |
d46ce6a4 | 1720 | constraintExprKind kind = e->kind; |
c3e695ff | 1721 | |
1722 | constraintExpr ret; | |
1723 | ||
1724 | llassert(kind == term); | |
1725 | ||
1726 | t = constraintExprData_termGetTerm (data); | |
28bf4b0b | 1727 | llassert (constraintTerm_isDefined(t) ); |
c3e695ff | 1728 | |
1729 | ret = e; | |
b9904f57 | 1730 | |
1731 | DPRINTF (("Fixing: %s", constraintExpr_print (e))); | |
1732 | ||
1733 | switch (constraintTerm_getKind(t)) | |
c3e695ff | 1734 | { |
1735 | case EXPRNODE: | |
bb25bea6 | 1736 | DPRINTF((message ("%q @ %q ", constraintTerm_print(t), |
1737 | fileloc_unparse (constraintTerm_getFileloc(t) ) ) )); | |
c3e695ff | 1738 | break; |
1739 | case INTLITERAL: | |
bb25bea6 | 1740 | DPRINTF((message (" %q ", constraintTerm_print (t)) )); |
d46ce6a4 | 1741 | break; |
c3e695ff | 1742 | |
1743 | case SREF: | |
b9904f57 | 1744 | /* evans 2001-07-24: constants should use the original term */ |
1745 | if (!constraintTerm_canGetValue (t)) | |
1746 | { | |
1747 | DPRINTF ((message("Doing sRef_fixConstraintParam for %q ", | |
1748 | constraintTerm_print (t) ) )); | |
1749 | ret = sRef_fixConstraintParam (constraintTerm_getSRef(t), arglist); | |
1750 | ||
1751 | constraintExpr_free (e); | |
1752 | ||
1753 | DPRINTF (( message("After Doing sRef_fixConstraintParam constraintExpr is %q ", | |
1754 | constraintExpr_print (ret) ) )); | |
1755 | /*@-branchstate@*/ | |
1756 | } /*@=branchstate@*/ | |
d46ce6a4 | 1757 | |
c3e695ff | 1758 | break; |
1759 | default: | |
1760 | BADEXIT; | |
1761 | } | |
b9904f57 | 1762 | |
c3e695ff | 1763 | return ret; |
1764 | ||
1765 | } | |
3aaedf88 | 1766 | |
1767 | ||
1768 | /* bool constraintExpr_includesTerm (constraintExpr expr, constraintTerm term) */ | |
1769 | /* { */ | |
1770 | /* if (constraintTerm_hasTerm (expr->term, term) ) */ | |
1771 | /* return TRUE; */ | |
1772 | ||
1773 | /* if ( (expr->expr) != NULL) */ | |
1774 | /* { */ | |
1775 | /* return ( constraintExpr_includesTerm (expr->expr, term) ); */ | |
1776 | /* } */ | |
1777 | /* return FALSE; */ | |
1778 | ||
1779 | /* } */ | |
1780 | ||
bb25bea6 | 1781 | /*drl added 6/11/01 */ |
1782 | bool constraintExpr_isBinaryExpr (/*@observer@*/ constraintExpr c) | |
1783 | { | |
1784 | if (c->kind == binaryexpr) | |
1785 | return TRUE; | |
3aaedf88 | 1786 | |
bb25bea6 | 1787 | else |
1788 | return FALSE; | |
1789 | } | |
3aaedf88 | 1790 | |
a779b61e | 1791 | /*drl added 8/08/001 */ |
1792 | bool constraintExpr_isTerm (/*@observer@*/ constraintExpr c) /*@*/ | |
1793 | { | |
1794 | if (c->kind == term) | |
1795 | return TRUE; | |
1796 | ||
1797 | else | |
1798 | return FALSE; | |
1799 | } | |
1800 | ||
1801 | /*@observer@*/ /*@temp@*/ constraintTerm constraintExpr_getTerm ( /*@temp@*/ /*@observer@*/ constraintExpr c) /*@*/ | |
1802 | { | |
1803 | constraintTerm term; | |
1804 | ||
1805 | llassert(constraintExpr_isTerm(c) ); | |
1806 | ||
1807 | term = constraintExprData_termGetTerm(c->data); | |
1808 | ||
1809 | return term; | |
1810 | } | |
1811 | ||
920a3797 | 1812 | static void binaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f) |
1813 | { | |
1814 | constraintExpr expr1; | |
1815 | constraintExprBinaryOpKind binaryOp; | |
1816 | constraintExpr expr2; | |
1817 | ||
1818 | ||
1819 | binaryOp = constraintExprData_binaryExprGetOp (data); | |
1820 | ||
1821 | fprintf(f, "%d\n", (int) binaryOp); | |
1822 | ||
1823 | expr1 = constraintExprData_binaryExprGetExpr1 (data); | |
1824 | expr2 = constraintExprData_binaryExprGetExpr2 (data); | |
1825 | ||
1826 | fprintf(f, "e1\n"); | |
1827 | ||
1828 | constraintExpr_dump(expr1, f); | |
1829 | ||
1830 | fprintf(f, "e2\n"); | |
1831 | constraintExpr_dump(expr2, f); | |
1832 | } | |
1833 | ||
1834 | ||
1835 | static constraintExpr binaryExpr_undump (FILE *f) | |
1836 | { | |
1837 | constraintExpr expr1; | |
1838 | constraintExprBinaryOpKind binaryOp; | |
1839 | constraintExpr expr2; | |
1840 | ||
1841 | constraintExpr ret; | |
1842 | ||
1843 | ||
1844 | ||
1845 | char * str; | |
1846 | char * os; | |
1847 | ||
1848 | str = mstring_create (MAX_DUMP_LINE_LENGTH); | |
1849 | os = str; | |
1850 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
1851 | ||
1852 | ||
28bf4b0b | 1853 | binaryOp = (constraintExprBinaryOpKind) reader_getInt(&str); |
920a3797 | 1854 | |
1855 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
1856 | ||
28bf4b0b | 1857 | reader_checkChar (&str, 'e'); |
1858 | reader_checkChar (&str, '1'); | |
920a3797 | 1859 | |
1860 | expr1 = constraintExpr_undump (f); | |
1861 | ||
1862 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
1863 | ||
28bf4b0b | 1864 | reader_checkChar (&str, 'e'); |
1865 | reader_checkChar (&str, '2'); | |
920a3797 | 1866 | |
1867 | expr2 = constraintExpr_undump (f); | |
1868 | ||
1869 | ret = constraintExpr_makeBinaryOpConstraintExpr (expr1, expr2); | |
1870 | ret->data = constraintExprData_binaryExprSetOp(ret->data, binaryOp); | |
1871 | ||
1872 | free(os); | |
1873 | return ret; | |
1874 | } | |
1875 | ||
1876 | ||
1877 | ||
1878 | static void unaryExpr_dump (/*@observer@*/ constraintExprData data, FILE *f) | |
1879 | { | |
1880 | ||
1881 | constraintExpr expr; | |
1882 | constraintExprUnaryOpKind unaryOp; | |
1883 | ||
1884 | unaryOp = constraintExprData_unaryExprGetOp (data); | |
1885 | ||
1886 | fprintf(f, "%d\n", (int) unaryOp); | |
1887 | ||
1888 | expr = constraintExprData_unaryExprGetExpr (data); | |
1889 | ||
1890 | constraintExpr_dump(expr, f); | |
1891 | } | |
1892 | ||
1893 | static constraintExpr unaryExpr_undump ( FILE *f) | |
1894 | { | |
1895 | ||
1896 | constraintExpr expr; | |
1897 | constraintExprUnaryOpKind unaryOp; | |
1898 | constraintExpr ret; | |
1899 | ||
1900 | char * str; | |
1901 | char * os; | |
1902 | ||
1903 | str = mstring_create (MAX_DUMP_LINE_LENGTH); | |
1904 | os = str; | |
1905 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
1906 | ||
28bf4b0b | 1907 | unaryOp = (constraintExprUnaryOpKind) reader_getInt(&str); |
920a3797 | 1908 | |
1909 | expr = constraintExpr_undump (f); | |
1910 | ||
1911 | ret = constraintExpr_makeUnaryOp (expr, unaryOp); | |
1912 | ||
1913 | free(os); | |
1914 | ||
1915 | return ret; | |
1916 | } | |
1917 | ||
1918 | void constraintExpr_dump (/*@observer@*/ constraintExpr expr, FILE *f) | |
1919 | { | |
1920 | constraintExprKind kind; | |
1921 | constraintTerm t; | |
1922 | ||
1923 | ||
1924 | kind = expr->kind; | |
1925 | ||
1926 | fprintf(f,"%d\n", (int) kind); | |
1927 | ||
1928 | switch (kind) | |
1929 | { | |
1930 | case term: | |
1931 | t = constraintExprData_termGetTerm (expr->data); | |
1932 | constraintTerm_dump (t, f); | |
1933 | break; | |
1934 | case unaryExpr: | |
1935 | unaryExpr_dump (expr->data, f); | |
1936 | break; | |
1937 | case binaryexpr: | |
1938 | binaryExpr_dump (expr->data, f); | |
1939 | break; | |
1940 | } | |
1941 | } | |
1942 | ||
1943 | /*@only@*/ constraintExpr constraintExpr_undump (FILE *f) | |
1944 | { | |
1945 | constraintExprKind kind; | |
1946 | constraintTerm t; | |
1947 | constraintExpr ret; | |
1948 | ||
1949 | char * s; | |
1950 | char * os; | |
1951 | ||
1952 | s = mstring_create (MAX_DUMP_LINE_LENGTH); | |
1953 | ||
1954 | os = s; | |
1955 | ||
1956 | s = fgets(os, MAX_DUMP_LINE_LENGTH, f); | |
1957 | ||
28bf4b0b | 1958 | kind = (constraintExprKind) reader_getInt(&s); |
920a3797 | 1959 | |
1960 | free (os); | |
1961 | ||
1962 | switch (kind) | |
1963 | { | |
1964 | case term: | |
1965 | t = constraintTerm_undump (f); | |
1966 | ret = constraintExpr_makeTerm(t); | |
1967 | break; | |
1968 | case unaryExpr: | |
1969 | ret = unaryExpr_undump (f); | |
1970 | break; | |
1971 | case binaryexpr: | |
1972 | ret = binaryExpr_undump (f); | |
1973 | break; | |
1974 | } | |
1975 | ||
1976 | return ret; | |
1977 | ||
1978 | } | |
a779b61e | 1979 | |
1980 | int constraintExpr_getDepth (constraintExpr ex) | |
1981 | { | |
1982 | int ret; | |
1983 | ||
1984 | constraintExprKind kind; | |
1985 | ||
1986 | llassert (ex != NULL); | |
1987 | ||
1988 | kind = ex->kind; | |
1989 | ||
1990 | switch (kind) | |
1991 | { | |
1992 | case term: | |
1993 | ret = 1; | |
1994 | break; | |
1995 | case unaryExpr: | |
1996 | ret = constraintExpr_getDepth (constraintExprData_unaryExprGetExpr (ex->data) ); | |
1997 | ret++; | |
1998 | ||
1999 | break; | |
2000 | case binaryexpr: | |
2001 | ret = 0; | |
2002 | ret = constraintExpr_getDepth (constraintExprData_binaryExprGetExpr1 (ex->data) ); | |
2003 | ||
2004 | ret++; | |
2005 | ||
2006 | ret += constraintExpr_getDepth (constraintExprData_binaryExprGetExpr2 (ex->data) ); | |
2007 | ||
2008 | break; | |
2009 | default: | |
2010 | BADEXIT; | |
2011 | } | |
2012 | ||
2013 | return ret; | |
2014 | } | |
2015 | ||
2016 | ||
2017 |