2 * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * File name: ir/tr/trvrfy.c
23 * Purpose: Check types and entities for correctness.
24 * Author: Michael Beck, Goetz Lindenmaier
28 * Copyright: (c) 2003 Universität Karlsruhe
35 #include "irgraph_t.h" /* for checking whether constant code is allocated
42 static const char *firm_vrfy_failure_msg;
46 * in RELEASE mode, returns ret if the expression expr evaluates to zero
47 * in ASSERT mode, asserts the expression expr (and the string string).
49 #define ASSERT_AND_RET(expr, string, ret) if (!(expr)) return (ret)
52 * in RELEASE mode, returns ret if the expression expr evaluates to zero
53 * in ASSERT mode, executes blk if the expression expr evaluates to zero and asserts expr
55 #define ASSERT_AND_RET_DBG(expr, string, ret, blk) if (!(expr)) return (ret)
57 #define ASSERT_AND_RET(expr, string, ret) \
59 if (opt_do_node_verification == FIRM_VERIFICATION_ON) {\
60 assert((expr) && string); } \
62 if (opt_do_node_verification == FIRM_VERIFICATION_REPORT) \
63 fprintf(stderr, #expr " : " string "\n"); \
64 firm_vrfy_failure_msg = #expr " && " string; \
69 #define ASSERT_AND_RET_DBG(expr, string, ret, blk) \
72 firm_vrfy_failure_msg = #expr " && " string; \
73 if (opt_do_node_verification != FIRM_VERIFICATION_ERROR_ONLY) { blk; } \
74 if (opt_do_node_verification == FIRM_VERIFICATION_REPORT) \
75 fprintf(stderr, #expr " : " string "\n"); \
76 else if (opt_do_node_verification == FIRM_VERIFICATION_ON) { \
77 assert((expr) && string); \
86 * Show diagnostic if an entity overwrites another one not
87 * in direct superclasses.
89 static void show_ent_not_supertp(ir_entity *ent, ir_entity *ovw)
91 ir_type *owner = get_entity_owner(ent);
92 ir_type *ov_own = get_entity_owner(ovw);
95 fprintf(stderr, "Type verification error:\n");
96 ir_fprintf(stderr, "Entity %+F::%+e owerwrites ", owner, ent);
97 ir_fprintf(stderr, "Entity %+F::%+e\n", ov_own, ovw);
99 ir_fprintf(stderr, "Supertypes of %+F:\n", owner);
100 for (i = 0; i < get_class_n_supertypes(owner); ++i) {
101 ir_type *super = get_class_supertype(owner, i);
102 ir_fprintf(stderr, " %+F:\n", super);
107 * Show diagnostic if an entity overwrites a wrong number of things.
109 static void show_ent_overwrite_cnt(ir_entity *ent)
111 ir_type *owner = get_entity_owner(ent);
112 int i, j, k, found, show_stp = 0;
114 fprintf(stderr, "Type verification error:\n");
115 ir_fprintf(stderr, "Entity %t::%e owerwrites\n", owner, ent);
116 for (i = 0; i < get_entity_n_overwrites(ent); ++i) {
117 ir_entity *ovw = get_entity_overwrites(ent, i);
118 ir_type *ov_own = get_entity_owner(ovw);
120 ir_fprintf(stderr, " %t::%e\n", ov_own, ovw);
121 for (k = 0; k < i; ++k)
122 if (ovw == get_entity_overwrites(ent, k)) {
123 ir_fprintf(stderr, " ->%t::%e entered more than once\n", ov_own, ovw);
128 for (j = get_class_n_supertypes(owner) - 1; j >= 0; --j) {
129 if (ov_own == get_class_supertype(owner, j)) {
130 show_stp = found = 1;
135 ir_fprintf(stderr, " ->%t not in super types of %t\n", ov_own, owner);
139 ir_fprintf(stderr, "Supertypes of %t:\n", owner);
140 for (i = 0; i < get_class_n_supertypes(owner); ++i) {
141 ir_type *super = get_class_supertype(owner, i);
142 ir_fprintf(stderr, " %t:\n", super);
150 static int check_class(ir_type *tp) {
154 /*printf("\n"); DDMT(tp);*/
156 for (i = get_class_n_members(tp) - 1; i >= 0; --i) {
157 ir_entity *mem = get_class_member(tp, i);
160 tp == get_entity_owner(mem),
161 "class member with wrong owner",
162 error_ent_wrong_owner,
163 ir_fprintf(stderr, "Type verification error:\n%+F %+e(owner %+F)\n",tp, mem, get_entity_owner(mem))
167 "NULL members not allowed",
169 ir_fprintf(stderr, "Type verification error:\n%+F member %d is NULL\n", tp, i)
173 get_entity_n_overwrites(mem) <= get_class_n_supertypes(tp),
174 "wrong number of entity overwrites",
175 error_wrong_ent_overwrites,
176 show_ent_overwrite_cnt(mem)
179 for (j = get_entity_n_overwrites(mem) - 1; j >= 0; --j) {
180 ir_entity *ovw = get_entity_overwrites(mem, j);
181 /*printf(" overwrites: "); DDME(ovw);*/
182 /* Check whether ovw is member of one of tp's supertypes. If so,
183 the representation is correct. */
185 for (k = get_class_n_supertypes(tp) - 1; k >= 0; --k) {
186 if (get_class_member_index(get_class_supertype(tp, k), ovw) >= 0) {
193 "overwrites an entity not contained in direct supertype",
195 show_ent_not_supertp(mem, ovw)
205 static int check_array(ir_type *tp) {
206 int i, n_dim = get_array_n_dimensions(tp);
207 for (i = 0; i < n_dim; ++i) {
209 has_array_lower_bound(tp, i) || has_array_upper_bound(tp, i),
210 "array bound missing",
212 ir_fprintf(stderr, "%+F in dimension %d\n", tp, i)
222 static int check_primitive(ir_type *tp) {
224 is_mode(get_type_mode(tp)),
225 "Primitive type without mode",
227 ir_fprintf(stderr, "%+F\n", tp)
237 * 0 if no error encountered
239 int check_type(ir_type *tp) {
240 switch (get_type_tpop_code(tp)) {
242 return check_class(tp);
244 return check_array(tp);
246 return check_primitive(tp);
253 * checks the visited flag
255 static int check_visited_flag(ir_graph *irg, ir_node *n) {
257 get_irn_visited(n) <= get_irg_visited(irg),
258 "Visited flag of node is larger than that of corresponding irg.",
260 ir_fprintf(stderr, "%+F in %+F\n", n, irg)
266 * helper environment struct for constant_on_wrong_obstack()
274 * called by the walker
276 static void on_irg_storage(ir_node *n, void *env) {
277 struct myenv *myenv = env;
279 /* We also test whether the setting of the visited flag is legal. */
280 myenv->res = node_is_in_irgs_storage(myenv->irg, n) &&
281 check_visited_flag(myenv->irg, n);
285 * checks whether a given constant IR node is NOT on the
288 static int constant_on_wrong_irg(ir_node *n) {
291 env.res = 1; /* on right obstack */
292 env.irg = get_const_code_irg();
294 irg_walk(n, on_irg_storage, NULL, (void *)&env);
299 * Check if constants node are NOT on the constant IR graph.
301 * @return NON-zero if an entity initializer constant is NOT on
302 * the current_ir_graph's obstack.
304 static int constants_on_wrong_irg(ir_entity *ent) {
305 if (get_entity_variability(ent) == variability_uninitialized) return 0;
307 if (is_compound_entity(ent)) {
309 for (i = 0; i < get_compound_ent_n_values(ent); i++) {
310 if (constant_on_wrong_irg(get_compound_ent_value(ent, i)))
314 /* Might not be set if entity belongs to a description or is external allocated. */
315 if (get_atomic_ent_value(ent))
316 return constant_on_wrong_irg(get_atomic_ent_value(ent));
317 else if (get_entity_visibility(ent) != visibility_external_allocated) {
319 is_Class_type(get_entity_owner(ent)) &&
320 get_class_peculiarity(get_entity_owner(ent)) == peculiarity_description,
321 "Value in constant atomic entity not set.",
323 ir_fprintf(stderr, "%+e, owner %+F\n", ent, get_entity_owner(ent))
331 * Shows a wrong entity allocation
333 static void show_ent_alloc_error(ir_entity *ent)
335 ir_fprintf(stderr, "%+e owner %t has allocation %s\n",
336 ent, get_entity_type(ent),
337 get_allocation_name(get_entity_allocation(ent)));
341 * Check an entity. Currently, we check only if initialized constants
342 * are build on the const irg graph.
345 * 0 if no error encountered
346 * != 0 a trvrfy_error_codes code
348 int check_entity(ir_entity *ent) {
350 ir_type *tp = get_entity_type(ent);
351 ir_type *owner = get_entity_owner(ent);
353 current_ir_graph = get_const_code_irg();
355 constants_on_wrong_irg(ent) == 0,
356 "Contants placed on wrong IRG",
357 error_const_on_wrong_irg,
358 ir_fprintf(stderr, "%+e not on %+F\n", ent, current_ir_graph));
360 rem_vpi = get_visit_pseudo_irgs();
361 set_visit_pseudo_irgs(1);
362 if ((get_entity_peculiarity(ent) == peculiarity_existent) &&
363 (get_entity_visibility(ent) != visibility_external_allocated) &&
364 (is_Method_type(get_entity_type(ent))) &&
365 (!get_entity_irg(ent) || !(is_ir_graph(get_entity_irg(ent))))) {
368 "Method ents with pec_exist must have an irg",
369 error_existent_entity_without_irg,
370 ir_fprintf(stderr, "%+e\n", ent)
373 set_visit_pseudo_irgs(rem_vpi);
375 /* Originally, this test assumed, that only method entities have
376 pecularity_inherited. As I changed this, I have to test for method type before
378 if (get_entity_peculiarity(ent) == peculiarity_inherited) {
379 if (is_Method_type(get_entity_type(ent))) {
380 ir_entity *impl = get_SymConst_entity(get_atomic_ent_value(ent));
382 get_entity_peculiarity(impl) == peculiarity_existent,
383 "inherited method entities must have constant pointing to existent entity.",
384 error_inherited_ent_without_const,
385 ir_fprintf(stderr, "%+e points to %+e\n", ent, impl)
390 /* Entities in global type are not dynamic or automatic allocated. */
391 if (owner == get_glob_type()) {
393 get_entity_allocation(ent) != allocation_dynamic &&
394 get_entity_allocation(ent) != allocation_automatic,
395 "Entities in global type are not allowed to by dynamic or automatic allocated",
396 error_glob_ent_allocation,
397 show_ent_alloc_error(ent)
401 if (get_entity_variability(ent) != variability_uninitialized) {
402 if (is_atomic_type(tp)) {
403 ir_node *val = get_atomic_ent_value(ent);
406 get_irn_mode(val) == get_type_mode(tp),
407 "Mode of constant in entity must match type.",
408 error_ent_const_mode,
409 ir_fprintf(stderr, "%+e const %+F, type %+F(%+F)\n",
410 ent, val, tp, get_type_mode(tp))
418 * check types and entities
420 static void check_tore(type_or_ent *tore, void *env) {
424 *res = check_type((ir_type *)tore);
426 assert(is_entity(tore));
427 *res = check_entity((ir_entity *)tore);
432 * Verify types and entities.
437 type_walk(check_tore, NULL, &res);