]>
Commit | Line | Data |
---|---|---|
8d08fdba | 1 | /* Language-dependent node constructors for parse phase of GNU compiler. |
06ceef4e | 2 | Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
a7cbc517 | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009 |
e77f031d | 4 | Free Software Foundation, Inc. |
8d08fdba MS |
5 | Hacked by Michael Tiemann (tiemann@cygnus.com) |
6 | ||
f5adbb8d | 7 | This file is part of GCC. |
8d08fdba | 8 | |
f5adbb8d | 9 | GCC is free software; you can redistribute it and/or modify |
8d08fdba | 10 | it under the terms of the GNU General Public License as published by |
e77f031d | 11 | the Free Software Foundation; either version 3, or (at your option) |
8d08fdba MS |
12 | any later version. |
13 | ||
f5adbb8d | 14 | GCC is distributed in the hope that it will be useful, |
8d08fdba MS |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
e77f031d NC |
20 | along with GCC; see the file COPYING3. If not see |
21 | <http://www.gnu.org/licenses/>. */ | |
8d08fdba MS |
22 | |
23 | #include "config.h" | |
8d052bc7 | 24 | #include "system.h" |
4977bab6 ZW |
25 | #include "coretypes.h" |
26 | #include "tm.h" | |
8d08fdba MS |
27 | #include "tree.h" |
28 | #include "cp-tree.h" | |
29 | #include "flags.h" | |
12027a89 | 30 | #include "toplev.h" |
25af8512 | 31 | #include "tree-inline.h" |
e58a9aa1 | 32 | #include "debug.h" |
41990f96 | 33 | #include "convert.h" |
87501227 | 34 | #include "cgraph.h" |
245763e3 | 35 | #include "splay-tree.h" |
6662d794 | 36 | #include "gimple.h" /* gimple_has_body_p */ |
12027a89 | 37 | |
b57b79f7 NN |
38 | static tree bot_manip (tree *, int *, void *); |
39 | static tree bot_replace (tree *, int *, void *); | |
b57b79f7 NN |
40 | static int list_hash_eq (const void *, const void *); |
41 | static hashval_t list_hash_pieces (tree, tree, tree); | |
42 | static hashval_t list_hash (const void *); | |
df5c89cb | 43 | static cp_lvalue_kind lvalue_p_1 (const_tree); |
b57b79f7 NN |
44 | static tree build_target_expr (tree, tree); |
45 | static tree count_trees_r (tree *, int *, void *); | |
46 | static tree verify_stmt_tree_r (tree *, int *, void *); | |
a6f86b51 | 47 | static tree build_local_temp (tree); |
b57b79f7 NN |
48 | |
49 | static tree handle_java_interface_attribute (tree *, tree, tree, int, bool *); | |
50 | static tree handle_com_interface_attribute (tree *, tree, tree, int, bool *); | |
51 | static tree handle_init_priority_attribute (tree *, tree, tree, int, bool *); | |
91d231cb | 52 | |
27b8d0cd | 53 | /* If REF is an lvalue, returns the kind of lvalue that REF is. |
df5c89cb | 54 | Otherwise, returns clk_none. */ |
8d08fdba | 55 | |
27b8d0cd | 56 | static cp_lvalue_kind |
df5c89cb | 57 | lvalue_p_1 (const_tree ref) |
8ccc31eb | 58 | { |
27b8d0cd MM |
59 | cp_lvalue_kind op1_lvalue_kind = clk_none; |
60 | cp_lvalue_kind op2_lvalue_kind = clk_none; | |
61 | ||
8af2fec4 RY |
62 | /* Expressions of reference type are sometimes wrapped in |
63 | INDIRECT_REFs. INDIRECT_REFs are just internal compiler | |
64 | representation, not part of the language, so we have to look | |
65 | through them. */ | |
66 | if (TREE_CODE (ref) == INDIRECT_REF | |
67 | && TREE_CODE (TREE_TYPE (TREE_OPERAND (ref, 0))) | |
68 | == REFERENCE_TYPE) | |
df5c89cb | 69 | return lvalue_p_1 (TREE_OPERAND (ref, 0)); |
8af2fec4 | 70 | |
8ccc31eb | 71 | if (TREE_CODE (TREE_TYPE (ref)) == REFERENCE_TYPE) |
8af2fec4 RY |
72 | { |
73 | /* unnamed rvalue references are rvalues */ | |
74 | if (TYPE_REF_IS_RVALUE (TREE_TYPE (ref)) | |
75 | && TREE_CODE (ref) != PARM_DECL | |
76 | && TREE_CODE (ref) != VAR_DECL | |
77 | && TREE_CODE (ref) != COMPONENT_REF) | |
df5c89cb | 78 | return clk_rvalueref; |
8af2fec4 | 79 | |
d732e98f | 80 | /* lvalue references and named rvalue references are lvalues. */ |
8af2fec4 RY |
81 | return clk_ordinary; |
82 | } | |
8ccc31eb | 83 | |
394fd776 | 84 | if (ref == current_class_ptr) |
27b8d0cd | 85 | return clk_none; |
8ccc31eb MS |
86 | |
87 | switch (TREE_CODE (ref)) | |
88 | { | |
8f4361eb AP |
89 | case SAVE_EXPR: |
90 | return clk_none; | |
8ccc31eb | 91 | /* preincrements and predecrements are valid lvals, provided |
e92cc029 | 92 | what they refer to are valid lvals. */ |
8ccc31eb MS |
93 | case PREINCREMENT_EXPR: |
94 | case PREDECREMENT_EXPR: | |
c7ae64f2 JM |
95 | case TRY_CATCH_EXPR: |
96 | case WITH_CLEANUP_EXPR: | |
69851283 MM |
97 | case REALPART_EXPR: |
98 | case IMAGPART_EXPR: | |
df5c89cb | 99 | return lvalue_p_1 (TREE_OPERAND (ref, 0)); |
8ccc31eb | 100 | |
27b8d0cd | 101 | case COMPONENT_REF: |
df5c89cb | 102 | op1_lvalue_kind = lvalue_p_1 (TREE_OPERAND (ref, 0)); |
c8b2e872 | 103 | /* Look at the member designator. */ |
4af9e878 | 104 | if (!op1_lvalue_kind) |
0cbd7506 | 105 | ; |
4af9e878 JM |
106 | else if (is_overloaded_fn (TREE_OPERAND (ref, 1))) |
107 | /* The "field" can be a FUNCTION_DECL or an OVERLOAD in some | |
b7da27c2 JM |
108 | situations. If we're seeing a COMPONENT_REF, it's a non-static |
109 | member, so it isn't an lvalue. */ | |
110 | op1_lvalue_kind = clk_none; | |
111 | else if (TREE_CODE (TREE_OPERAND (ref, 1)) != FIELD_DECL) | |
112 | /* This can be IDENTIFIER_NODE in a template. */; | |
e0d1297c | 113 | else if (DECL_C_BIT_FIELD (TREE_OPERAND (ref, 1))) |
27b8d0cd MM |
114 | { |
115 | /* Clear the ordinary bit. If this object was a class | |
116 | rvalue we want to preserve that information. */ | |
117 | op1_lvalue_kind &= ~clk_ordinary; | |
cd0be382 | 118 | /* The lvalue is for a bitfield. */ |
27b8d0cd MM |
119 | op1_lvalue_kind |= clk_bitfield; |
120 | } | |
e0d1297c NS |
121 | else if (DECL_PACKED (TREE_OPERAND (ref, 1))) |
122 | op1_lvalue_kind |= clk_packed; | |
9f63daea | 123 | |
27b8d0cd MM |
124 | return op1_lvalue_kind; |
125 | ||
8ccc31eb | 126 | case STRING_CST: |
266b4890 | 127 | case COMPOUND_LITERAL_EXPR: |
27b8d0cd | 128 | return clk_ordinary; |
8ccc31eb | 129 | |
e58a9aa1 | 130 | case CONST_DECL: |
4b8c1a92 JJ |
131 | /* CONST_DECL without TREE_STATIC are enumeration values and |
132 | thus not lvalues. With TREE_STATIC they are used by ObjC++ | |
133 | in objc_build_string_object and need to be considered as | |
134 | lvalues. */ | |
135 | if (! TREE_STATIC (ref)) | |
136 | return clk_none; | |
8ccc31eb MS |
137 | case VAR_DECL: |
138 | if (TREE_READONLY (ref) && ! TREE_STATIC (ref) | |
139 | && DECL_LANG_SPECIFIC (ref) | |
140 | && DECL_IN_AGGR_P (ref)) | |
27b8d0cd | 141 | return clk_none; |
8ccc31eb MS |
142 | case INDIRECT_REF: |
143 | case ARRAY_REF: | |
144 | case PARM_DECL: | |
145 | case RESULT_DECL: | |
59e76fc6 | 146 | if (TREE_CODE (TREE_TYPE (ref)) != METHOD_TYPE) |
27b8d0cd | 147 | return clk_ordinary; |
8ccc31eb MS |
148 | break; |
149 | ||
8ccc31eb MS |
150 | /* A currently unresolved scope ref. */ |
151 | case SCOPE_REF: | |
315fb5db | 152 | gcc_unreachable (); |
27b8d0cd MM |
153 | case MAX_EXPR: |
154 | case MIN_EXPR: | |
d211a298 RS |
155 | /* Disallow <? and >? as lvalues if either argument side-effects. */ |
156 | if (TREE_SIDE_EFFECTS (TREE_OPERAND (ref, 0)) | |
157 | || TREE_SIDE_EFFECTS (TREE_OPERAND (ref, 1))) | |
158 | return clk_none; | |
df5c89cb JM |
159 | op1_lvalue_kind = lvalue_p_1 (TREE_OPERAND (ref, 0)); |
160 | op2_lvalue_kind = lvalue_p_1 (TREE_OPERAND (ref, 1)); | |
8ccc31eb MS |
161 | break; |
162 | ||
163 | case COND_EXPR: | |
42924ed7 JJ |
164 | op1_lvalue_kind = lvalue_p_1 (TREE_OPERAND (ref, 1) |
165 | ? TREE_OPERAND (ref, 1) | |
df5c89cb JM |
166 | : TREE_OPERAND (ref, 0)); |
167 | op2_lvalue_kind = lvalue_p_1 (TREE_OPERAND (ref, 2)); | |
27b8d0cd | 168 | break; |
8ccc31eb MS |
169 | |
170 | case MODIFY_EXPR: | |
27b8d0cd | 171 | return clk_ordinary; |
8ccc31eb MS |
172 | |
173 | case COMPOUND_EXPR: | |
df5c89cb | 174 | return lvalue_p_1 (TREE_OPERAND (ref, 1)); |
69851283 MM |
175 | |
176 | case TARGET_EXPR: | |
df5c89cb | 177 | return clk_class; |
69851283 | 178 | |
356955cf | 179 | case VA_ARG_EXPR: |
df5c89cb | 180 | return (CLASS_TYPE_P (TREE_TYPE (ref)) ? clk_class : clk_none); |
c0ad5a31 MM |
181 | |
182 | case CALL_EXPR: | |
4e8dca1c JM |
183 | /* Any class-valued call would be wrapped in a TARGET_EXPR. */ |
184 | return clk_none; | |
69851283 MM |
185 | |
186 | case FUNCTION_DECL: | |
187 | /* All functions (except non-static-member functions) are | |
188 | lvalues. */ | |
9f63daea | 189 | return (DECL_NONSTATIC_MEMBER_FUNCTION_P (ref) |
27b8d0cd | 190 | ? clk_none : clk_ordinary); |
7f85441b | 191 | |
4af9e878 JM |
192 | case BASELINK: |
193 | /* We now represent a reference to a single static member function | |
194 | with a BASELINK. */ | |
1e4ae551 MLI |
195 | /* This CONST_CAST is okay because BASELINK_FUNCTIONS returns |
196 | its argument unmodified and we assign it to a const_tree. */ | |
df5c89cb | 197 | return lvalue_p_1 (BASELINK_FUNCTIONS (CONST_CAST_TREE (ref))); |
4af9e878 | 198 | |
d17811fd MM |
199 | case NON_DEPENDENT_EXPR: |
200 | /* We must consider NON_DEPENDENT_EXPRs to be lvalues so that | |
201 | things like "&E" where "E" is an expression with a | |
202 | non-dependent type work. It is safe to be lenient because an | |
203 | error will be issued when the template is instantiated if "E" | |
204 | is not an lvalue. */ | |
205 | return clk_ordinary; | |
206 | ||
7f85441b KG |
207 | default: |
208 | break; | |
8ccc31eb MS |
209 | } |
210 | ||
27b8d0cd MM |
211 | /* If one operand is not an lvalue at all, then this expression is |
212 | not an lvalue. */ | |
213 | if (!op1_lvalue_kind || !op2_lvalue_kind) | |
214 | return clk_none; | |
215 | ||
216 | /* Otherwise, it's an lvalue, and it has all the odd properties | |
217 | contributed by either operand. */ | |
218 | op1_lvalue_kind = op1_lvalue_kind | op2_lvalue_kind; | |
9771799c | 219 | /* It's not an ordinary lvalue if it involves any other kind. */ |
27b8d0cd MM |
220 | if ((op1_lvalue_kind & ~clk_ordinary) != clk_none) |
221 | op1_lvalue_kind &= ~clk_ordinary; | |
9771799c JM |
222 | /* It can't be both a pseudo-lvalue and a non-addressable lvalue. |
223 | A COND_EXPR of those should be wrapped in a TARGET_EXPR. */ | |
224 | if ((op1_lvalue_kind & (clk_rvalueref|clk_class)) | |
225 | && (op1_lvalue_kind & (clk_bitfield|clk_packed))) | |
226 | op1_lvalue_kind = clk_none; | |
27b8d0cd | 227 | return op1_lvalue_kind; |
8ccc31eb MS |
228 | } |
229 | ||
aa6e8ed3 MM |
230 | /* Returns the kind of lvalue that REF is, in the sense of |
231 | [basic.lval]. This function should really be named lvalue_p; it | |
232 | computes the C++ definition of lvalue. */ | |
233 | ||
234 | cp_lvalue_kind | |
4af9e878 | 235 | real_lvalue_p (tree ref) |
aa6e8ed3 | 236 | { |
df5c89cb JM |
237 | cp_lvalue_kind kind = lvalue_p_1 (ref); |
238 | if (kind & (clk_rvalueref|clk_class)) | |
239 | return clk_none; | |
240 | else | |
241 | return kind; | |
aa6e8ed3 MM |
242 | } |
243 | ||
df5c89cb JM |
244 | /* This differs from real_lvalue_p in that class rvalues are considered |
245 | lvalues. */ | |
69851283 | 246 | |
1e4ae551 MLI |
247 | bool |
248 | lvalue_p (const_tree ref) | |
8d08fdba | 249 | { |
df5c89cb JM |
250 | return (lvalue_p_1 (ref) != clk_none); |
251 | } | |
252 | ||
253 | /* This differs from real_lvalue_p in that rvalues formed by dereferencing | |
254 | rvalue references are considered rvalues. */ | |
255 | ||
256 | bool | |
257 | lvalue_or_rvalue_with_address_p (const_tree ref) | |
258 | { | |
259 | cp_lvalue_kind kind = lvalue_p_1 (ref); | |
260 | if (kind & clk_class) | |
261 | return false; | |
262 | else | |
263 | return (kind != clk_none); | |
6c6e776d MA |
264 | } |
265 | ||
100d337a MA |
266 | /* Test whether DECL is a builtin that may appear in a |
267 | constant-expression. */ | |
268 | ||
269 | bool | |
58f9752a | 270 | builtin_valid_in_constant_expr_p (const_tree decl) |
100d337a MA |
271 | { |
272 | /* At present BUILT_IN_CONSTANT_P is the only builtin we're allowing | |
273 | in constant-expressions. We may want to add other builtins later. */ | |
88a7beb7 | 274 | return DECL_IS_BUILTIN_CONSTANT_P (decl); |
100d337a MA |
275 | } |
276 | ||
c506ca22 MM |
277 | /* Build a TARGET_EXPR, initializing the DECL with the VALUE. */ |
278 | ||
279 | static tree | |
b57b79f7 | 280 | build_target_expr (tree decl, tree value) |
c506ca22 MM |
281 | { |
282 | tree t; | |
04941f76 AO |
283 | |
284 | #ifdef ENABLE_CHECKING | |
285 | gcc_assert (VOID_TYPE_P (TREE_TYPE (value)) | |
286 | || TREE_TYPE (decl) == TREE_TYPE (value) | |
287 | || useless_type_conversion_p (TREE_TYPE (decl), | |
288 | TREE_TYPE (value))); | |
289 | #endif | |
c506ca22 | 290 | |
f293ce4b RS |
291 | t = build4 (TARGET_EXPR, TREE_TYPE (decl), decl, value, |
292 | cxx_maybe_build_cleanup (decl), NULL_TREE); | |
c506ca22 MM |
293 | /* We always set TREE_SIDE_EFFECTS so that expand_expr does not |
294 | ignore the TARGET_EXPR. If there really turn out to be no | |
295 | side-effects, then the optimizer should be able to get rid of | |
296 | whatever code is generated anyhow. */ | |
297 | TREE_SIDE_EFFECTS (t) = 1; | |
298 | ||
299 | return t; | |
300 | } | |
301 | ||
a6f86b51 JM |
302 | /* Return an undeclared local temporary of type TYPE for use in building a |
303 | TARGET_EXPR. */ | |
304 | ||
305 | static tree | |
306 | build_local_temp (tree type) | |
307 | { | |
c2255bc4 AH |
308 | tree slot = build_decl (input_location, |
309 | VAR_DECL, NULL_TREE, type); | |
a6f86b51 | 310 | DECL_ARTIFICIAL (slot) = 1; |
78e0d62b | 311 | DECL_IGNORED_P (slot) = 1; |
a6f86b51 JM |
312 | DECL_CONTEXT (slot) = current_function_decl; |
313 | layout_decl (slot, 0); | |
314 | return slot; | |
315 | } | |
316 | ||
5039610b SL |
317 | /* Set various status flags when building an AGGR_INIT_EXPR object T. */ |
318 | ||
319 | static void | |
320 | process_aggr_init_operands (tree t) | |
321 | { | |
322 | bool side_effects; | |
323 | ||
324 | side_effects = TREE_SIDE_EFFECTS (t); | |
325 | if (!side_effects) | |
326 | { | |
327 | int i, n; | |
328 | n = TREE_OPERAND_LENGTH (t); | |
329 | for (i = 1; i < n; i++) | |
330 | { | |
331 | tree op = TREE_OPERAND (t, i); | |
332 | if (op && TREE_SIDE_EFFECTS (op)) | |
333 | { | |
334 | side_effects = 1; | |
335 | break; | |
336 | } | |
337 | } | |
338 | } | |
339 | TREE_SIDE_EFFECTS (t) = side_effects; | |
340 | } | |
341 | ||
342 | /* Build an AGGR_INIT_EXPR of class tcc_vl_exp with the indicated RETURN_TYPE, | |
343 | FN, and SLOT. NARGS is the number of call arguments which are specified | |
344 | as a tree array ARGS. */ | |
345 | ||
346 | static tree | |
347 | build_aggr_init_array (tree return_type, tree fn, tree slot, int nargs, | |
348 | tree *args) | |
349 | { | |
350 | tree t; | |
351 | int i; | |
352 | ||
353 | t = build_vl_exp (AGGR_INIT_EXPR, nargs + 3); | |
354 | TREE_TYPE (t) = return_type; | |
355 | AGGR_INIT_EXPR_FN (t) = fn; | |
356 | AGGR_INIT_EXPR_SLOT (t) = slot; | |
357 | for (i = 0; i < nargs; i++) | |
358 | AGGR_INIT_EXPR_ARG (t, i) = args[i]; | |
359 | process_aggr_init_operands (t); | |
360 | return t; | |
361 | } | |
362 | ||
363 | /* INIT is a CALL_EXPR or AGGR_INIT_EXPR which needs info about its | |
844ae01d | 364 | target. TYPE is the type to be initialized. |
8d08fdba | 365 | |
844ae01d JM |
366 | Build an AGGR_INIT_EXPR to represent the initialization. This function |
367 | differs from build_cplus_new in that an AGGR_INIT_EXPR can only be used | |
368 | to initialize another object, whereas a TARGET_EXPR can either | |
369 | initialize another object or create its own temporary object, and as a | |
370 | result building up a TARGET_EXPR requires that the type's destructor be | |
371 | callable. */ | |
e92cc029 | 372 | |
8d08fdba | 373 | tree |
844ae01d | 374 | build_aggr_init_expr (tree type, tree init) |
8d08fdba | 375 | { |
e1376b00 | 376 | tree fn; |
e8abc66f MS |
377 | tree slot; |
378 | tree rval; | |
4977bab6 | 379 | int is_ctor; |
e8abc66f | 380 | |
27b8d0cd MM |
381 | /* Make sure that we're not trying to create an instance of an |
382 | abstract class. */ | |
5bb2f1e7 | 383 | abstract_virtuals_error (NULL_TREE, type); |
27b8d0cd | 384 | |
5039610b SL |
385 | if (TREE_CODE (init) == CALL_EXPR) |
386 | fn = CALL_EXPR_FN (init); | |
387 | else if (TREE_CODE (init) == AGGR_INIT_EXPR) | |
388 | fn = AGGR_INIT_EXPR_FN (init); | |
389 | else | |
06126ca2 | 390 | return convert (type, init); |
c11b6f21 | 391 | |
4977bab6 ZW |
392 | is_ctor = (TREE_CODE (fn) == ADDR_EXPR |
393 | && TREE_CODE (TREE_OPERAND (fn, 0)) == FUNCTION_DECL | |
394 | && DECL_CONSTRUCTOR_P (TREE_OPERAND (fn, 0))); | |
395 | ||
e1376b00 MM |
396 | /* We split the CALL_EXPR into its function and its arguments here. |
397 | Then, in expand_expr, we put them back together. The reason for | |
398 | this is that this expression might be a default argument | |
399 | expression. In that case, we need a new temporary every time the | |
400 | expression is used. That's what break_out_target_exprs does; it | |
401 | replaces every AGGR_INIT_EXPR with a copy that uses a fresh | |
402 | temporary slot. Then, expand_expr builds up a call-expression | |
403 | using the new slot. */ | |
4977bab6 ZW |
404 | |
405 | /* If we don't need to use a constructor to create an object of this | |
406 | type, don't mess with AGGR_INIT_EXPR. */ | |
407 | if (is_ctor || TREE_ADDRESSABLE (type)) | |
408 | { | |
844ae01d JM |
409 | slot = build_local_temp (type); |
410 | ||
5039610b SL |
411 | if (TREE_CODE(init) == CALL_EXPR) |
412 | rval = build_aggr_init_array (void_type_node, fn, slot, | |
413 | call_expr_nargs (init), | |
414 | CALL_EXPR_ARGP (init)); | |
415 | else | |
416 | rval = build_aggr_init_array (void_type_node, fn, slot, | |
417 | aggr_init_expr_nargs (init), | |
418 | AGGR_INIT_EXPR_ARGP (init)); | |
4977bab6 ZW |
419 | TREE_SIDE_EFFECTS (rval) = 1; |
420 | AGGR_INIT_VIA_CTOR_P (rval) = is_ctor; | |
d8a0d13e | 421 | TREE_NOTHROW (rval) = TREE_NOTHROW (init); |
4977bab6 ZW |
422 | } |
423 | else | |
424 | rval = init; | |
425 | ||
844ae01d JM |
426 | return rval; |
427 | } | |
428 | ||
429 | /* INIT is a CALL_EXPR or AGGR_INIT_EXPR which needs info about its | |
430 | target. TYPE is the type that this initialization should appear to | |
431 | have. | |
432 | ||
433 | Build an encapsulation of the initialization to perform | |
434 | and return it so that it can be processed by language-independent | |
435 | and language-specific expression expanders. */ | |
436 | ||
437 | tree | |
438 | build_cplus_new (tree type, tree init) | |
439 | { | |
440 | tree rval = build_aggr_init_expr (type, init); | |
441 | tree slot; | |
442 | ||
443 | if (TREE_CODE (rval) == AGGR_INIT_EXPR) | |
444 | slot = AGGR_INIT_EXPR_SLOT (rval); | |
445 | else if (TREE_CODE (rval) == CALL_EXPR) | |
446 | slot = build_local_temp (type); | |
447 | else | |
448 | return rval; | |
449 | ||
9d85d30c | 450 | rval = build_target_expr (slot, rval); |
c08cd4c1 | 451 | TARGET_EXPR_IMPLICIT_P (rval) = 1; |
8d08fdba | 452 | |
8d08fdba MS |
453 | return rval; |
454 | } | |
455 | ||
d5f4eddd JM |
456 | /* Return a TARGET_EXPR which expresses the direct-initialization of one |
457 | array from another. */ | |
458 | ||
459 | tree | |
460 | build_array_copy (tree init) | |
461 | { | |
462 | tree type = TREE_TYPE (init); | |
463 | tree slot = build_local_temp (type); | |
464 | init = build2 (VEC_INIT_EXPR, type, slot, init); | |
465 | SET_EXPR_LOCATION (init, input_location); | |
466 | init = build_target_expr (slot, init); | |
467 | TARGET_EXPR_IMPLICIT_P (init) = 1; | |
468 | ||
469 | return init; | |
470 | } | |
471 | ||
ab93b543 | 472 | /* Build a TARGET_EXPR using INIT to initialize a new temporary of the |
c506ca22 | 473 | indicated TYPE. */ |
aa36c081 JM |
474 | |
475 | tree | |
b57b79f7 | 476 | build_target_expr_with_type (tree init, tree type) |
aa36c081 | 477 | { |
50bc768d | 478 | gcc_assert (!VOID_TYPE_P (type)); |
59445d74 | 479 | |
309714d4 JM |
480 | if (TREE_CODE (init) == TARGET_EXPR |
481 | || init == error_mark_node) | |
5062dbd5 | 482 | return init; |
d758e847 | 483 | else if (CLASS_TYPE_P (type) && type_has_nontrivial_copy_init (type) |
7efc22ea | 484 | && !VOID_TYPE_P (TREE_TYPE (init)) |
4b5aa881 | 485 | && TREE_CODE (init) != COND_EXPR |
662eceda MM |
486 | && TREE_CODE (init) != CONSTRUCTOR |
487 | && TREE_CODE (init) != VA_ARG_EXPR) | |
7efc22ea JM |
488 | /* We need to build up a copy constructor call. A void initializer |
489 | means we're being called from bot_manip. COND_EXPR is a special | |
182609b5 | 490 | case because we already have copies on the arms and we don't want |
4b5aa881 | 491 | another one here. A CONSTRUCTOR is aggregate initialization, which |
662eceda MM |
492 | is handled separately. A VA_ARG_EXPR is magic creation of an |
493 | aggregate; there's no additional work to be done. */ | |
182609b5 | 494 | return force_rvalue (init); |
5062dbd5 | 495 | |
357d956e | 496 | return force_target_expr (type, init); |
a6f86b51 | 497 | } |
aa36c081 | 498 | |
a6f86b51 JM |
499 | /* Like the above function, but without the checking. This function should |
500 | only be used by code which is deliberately trying to subvert the type | |
d758e847 JM |
501 | system, such as call_builtin_trap. Or build_over_call, to avoid |
502 | infinite recursion. */ | |
a6f86b51 JM |
503 | |
504 | tree | |
505 | force_target_expr (tree type, tree init) | |
506 | { | |
59445d74 RH |
507 | tree slot; |
508 | ||
50bc768d | 509 | gcc_assert (!VOID_TYPE_P (type)); |
59445d74 RH |
510 | |
511 | slot = build_local_temp (type); | |
a6f86b51 | 512 | return build_target_expr (slot, init); |
aa36c081 JM |
513 | } |
514 | ||
c506ca22 MM |
515 | /* Like build_target_expr_with_type, but use the type of INIT. */ |
516 | ||
517 | tree | |
b57b79f7 | 518 | get_target_expr (tree init) |
c506ca22 | 519 | { |
450a927a JM |
520 | if (TREE_CODE (init) == AGGR_INIT_EXPR) |
521 | return build_target_expr (AGGR_INIT_EXPR_SLOT (init), init); | |
522 | else | |
523 | return build_target_expr_with_type (init, TREE_TYPE (init)); | |
c506ca22 MM |
524 | } |
525 | ||
e1039697 MM |
526 | /* If EXPR is a bitfield reference, convert it to the declared type of |
527 | the bitfield, and return the resulting expression. Otherwise, | |
528 | return EXPR itself. */ | |
529 | ||
530 | tree | |
531 | convert_bitfield_to_declared_type (tree expr) | |
532 | { | |
533 | tree bitfield_type; | |
534 | ||
535 | bitfield_type = is_bitfield_expr_with_lowered_type (expr); | |
536 | if (bitfield_type) | |
41990f96 MM |
537 | expr = convert_to_integer (TYPE_MAIN_VARIANT (bitfield_type), |
538 | expr); | |
e1039697 MM |
539 | return expr; |
540 | } | |
541 | ||
5cc53d4e MM |
542 | /* EXPR is being used in an rvalue context. Return a version of EXPR |
543 | that is marked as an rvalue. */ | |
544 | ||
545 | tree | |
546 | rvalue (tree expr) | |
547 | { | |
41990f96 MM |
548 | tree type; |
549 | ||
550 | if (error_operand_p (expr)) | |
551 | return expr; | |
552 | ||
03a904b5 JJ |
553 | expr = mark_rvalue_use (expr); |
554 | ||
41990f96 MM |
555 | /* [basic.lval] |
556 | ||
557 | Non-class rvalues always have cv-unqualified types. */ | |
558 | type = TREE_TYPE (expr); | |
36c37128 JM |
559 | if (!CLASS_TYPE_P (type) && cv_qualified_p (type)) |
560 | type = cv_unqualified (type); | |
41990f96 | 561 | |
b9c6b842 JM |
562 | /* We need to do this for rvalue refs as well to get the right answer |
563 | from decltype; see c++/36628. */ | |
564 | if (!processing_template_decl && lvalue_or_rvalue_with_address_p (expr)) | |
41990f96 MM |
565 | expr = build1 (NON_LVALUE_EXPR, type, expr); |
566 | else if (type != TREE_TYPE (expr)) | |
567 | expr = build_nop (type, expr); | |
568 | ||
5cc53d4e MM |
569 | return expr; |
570 | } | |
571 | ||
8d08fdba | 572 | \f |
06d40de8 DG |
573 | /* Hash an ARRAY_TYPE. K is really of type `tree'. */ |
574 | ||
575 | static hashval_t | |
576 | cplus_array_hash (const void* k) | |
577 | { | |
578 | hashval_t hash; | |
741ac903 | 579 | const_tree const t = (const_tree) k; |
06d40de8 | 580 | |
eb9c434c JJ |
581 | hash = TYPE_UID (TREE_TYPE (t)); |
582 | if (TYPE_DOMAIN (t)) | |
583 | hash ^= TYPE_UID (TYPE_DOMAIN (t)); | |
06d40de8 DG |
584 | return hash; |
585 | } | |
586 | ||
587 | typedef struct cplus_array_info { | |
588 | tree type; | |
589 | tree domain; | |
590 | } cplus_array_info; | |
591 | ||
592 | /* Compare two ARRAY_TYPEs. K1 is really of type `tree', K2 is really | |
593 | of type `cplus_array_info*'. */ | |
594 | ||
595 | static int | |
596 | cplus_array_compare (const void * k1, const void * k2) | |
597 | { | |
741ac903 KG |
598 | const_tree const t1 = (const_tree) k1; |
599 | const cplus_array_info *const t2 = (const cplus_array_info*) k2; | |
06d40de8 | 600 | |
714f2304 | 601 | return (TREE_TYPE (t1) == t2->type && TYPE_DOMAIN (t1) == t2->domain); |
06d40de8 DG |
602 | } |
603 | ||
38e40fcd JM |
604 | /* Hash table containing dependent array types, which are unsuitable for |
605 | the language-independent type hash table. */ | |
06d40de8 DG |
606 | static GTY ((param_is (union tree_node))) htab_t cplus_array_htab; |
607 | ||
38e40fcd | 608 | /* Like build_array_type, but handle special C++ semantics. */ |
06d40de8 | 609 | |
38e40fcd JM |
610 | tree |
611 | build_cplus_array_type (tree elt_type, tree index_type) | |
8d08fdba | 612 | { |
8d08fdba MS |
613 | tree t; |
614 | ||
adecb3f4 MM |
615 | if (elt_type == error_mark_node || index_type == error_mark_node) |
616 | return error_mark_node; | |
617 | ||
6da06848 JJ |
618 | if (processing_template_decl |
619 | && (dependent_type_p (elt_type) | |
620 | || (index_type && !TREE_CONSTANT (TYPE_MAX_VALUE (index_type))))) | |
5566b478 | 621 | { |
06d40de8 DG |
622 | void **e; |
623 | cplus_array_info cai; | |
624 | hashval_t hash; | |
714f2304 | 625 | |
06d40de8 DG |
626 | if (cplus_array_htab == NULL) |
627 | cplus_array_htab = htab_create_ggc (61, &cplus_array_hash, | |
628 | &cplus_array_compare, NULL); | |
629 | ||
eb9c434c JJ |
630 | hash = TYPE_UID (elt_type); |
631 | if (index_type) | |
632 | hash ^= TYPE_UID (index_type); | |
06d40de8 DG |
633 | cai.type = elt_type; |
634 | cai.domain = index_type; | |
635 | ||
636 | e = htab_find_slot_with_hash (cplus_array_htab, &cai, hash, INSERT); | |
637 | if (*e) | |
714f2304 | 638 | /* We have found the type: we're done. */ |
06d40de8 DG |
639 | return (tree) *e; |
640 | else | |
641 | { | |
714f2304 | 642 | /* Build a new array type. */ |
7ecbca9d | 643 | t = cxx_make_type (ARRAY_TYPE); |
06d40de8 DG |
644 | TREE_TYPE (t) = elt_type; |
645 | TYPE_DOMAIN (t) = index_type; | |
646 | ||
714f2304 DG |
647 | /* Store it in the hash table. */ |
648 | *e = t; | |
649 | ||
650 | /* Set the canonical type for this new node. */ | |
06d40de8 DG |
651 | if (TYPE_STRUCTURAL_EQUALITY_P (elt_type) |
652 | || (index_type && TYPE_STRUCTURAL_EQUALITY_P (index_type))) | |
653 | SET_TYPE_STRUCTURAL_EQUALITY (t); | |
654 | else if (TYPE_CANONICAL (elt_type) != elt_type | |
655 | || (index_type | |
656 | && TYPE_CANONICAL (index_type) != index_type)) | |
714f2304 DG |
657 | TYPE_CANONICAL (t) |
658 | = build_cplus_array_type | |
659 | (TYPE_CANONICAL (elt_type), | |
6da06848 | 660 | index_type ? TYPE_CANONICAL (index_type) : index_type); |
714f2304 DG |
661 | else |
662 | TYPE_CANONICAL (t) = t; | |
06d40de8 | 663 | } |
5566b478 MS |
664 | } |
665 | else | |
80661759 | 666 | t = build_array_type (elt_type, index_type); |
8d08fdba | 667 | |
38e40fcd JM |
668 | /* We want TYPE_MAIN_VARIANT of an array to strip cv-quals from the |
669 | element type as well, so fix it up if needed. */ | |
670 | if (elt_type != TYPE_MAIN_VARIANT (elt_type)) | |
671 | { | |
672 | tree m = build_cplus_array_type (TYPE_MAIN_VARIANT (elt_type), | |
673 | index_type); | |
674 | if (TYPE_MAIN_VARIANT (t) != m) | |
675 | { | |
676 | TYPE_MAIN_VARIANT (t) = m; | |
677 | TYPE_NEXT_VARIANT (t) = TYPE_NEXT_VARIANT (m); | |
678 | TYPE_NEXT_VARIANT (m) = t; | |
679 | } | |
680 | } | |
681 | ||
8d08fdba MS |
682 | /* Push these needs up so that initialization takes place |
683 | more easily. */ | |
9f63daea | 684 | TYPE_NEEDS_CONSTRUCTING (t) |
db3626d1 | 685 | = TYPE_NEEDS_CONSTRUCTING (TYPE_MAIN_VARIANT (elt_type)); |
9f63daea | 686 | TYPE_HAS_NONTRIVIAL_DESTRUCTOR (t) |
834c6dff | 687 | = TYPE_HAS_NONTRIVIAL_DESTRUCTOR (TYPE_MAIN_VARIANT (elt_type)); |
8d08fdba MS |
688 | return t; |
689 | } | |
e349ee73 | 690 | |
09357846 JM |
691 | /* Return an ARRAY_TYPE with element type ELT and length N. */ |
692 | ||
693 | tree | |
694 | build_array_of_n_type (tree elt, int n) | |
695 | { | |
696 | return build_cplus_array_type (elt, build_index_type (size_int (n - 1))); | |
697 | } | |
698 | ||
8af2fec4 RY |
699 | /* Return a reference type node referring to TO_TYPE. If RVAL is |
700 | true, return an rvalue reference type, otherwise return an lvalue | |
701 | reference type. If a type node exists, reuse it, otherwise create | |
702 | a new one. */ | |
703 | tree | |
704 | cp_build_reference_type (tree to_type, bool rval) | |
705 | { | |
706 | tree lvalue_ref, t; | |
707 | lvalue_ref = build_reference_type (to_type); | |
708 | if (!rval) | |
709 | return lvalue_ref; | |
710 | ||
711 | /* This code to create rvalue reference types is based on and tied | |
712 | to the code creating lvalue reference types in the middle-end | |
713 | functions build_reference_type_for_mode and build_reference_type. | |
714 | ||
715 | It works by putting the rvalue reference type nodes after the | |
716 | lvalue reference nodes in the TYPE_NEXT_REF_TO linked list, so | |
717 | they will effectively be ignored by the middle end. */ | |
718 | ||
719 | for (t = lvalue_ref; (t = TYPE_NEXT_REF_TO (t)); ) | |
720 | if (TYPE_REF_IS_RVALUE (t)) | |
721 | return t; | |
722 | ||
22521c89 | 723 | t = build_distinct_type_copy (lvalue_ref); |
8af2fec4 RY |
724 | |
725 | TYPE_REF_IS_RVALUE (t) = true; | |
726 | TYPE_NEXT_REF_TO (t) = TYPE_NEXT_REF_TO (lvalue_ref); | |
727 | TYPE_NEXT_REF_TO (lvalue_ref) = t; | |
8af2fec4 RY |
728 | |
729 | if (TYPE_STRUCTURAL_EQUALITY_P (to_type)) | |
730 | SET_TYPE_STRUCTURAL_EQUALITY (t); | |
731 | else if (TYPE_CANONICAL (to_type) != to_type) | |
732 | TYPE_CANONICAL (t) | |
733 | = cp_build_reference_type (TYPE_CANONICAL (to_type), rval); | |
734 | else | |
735 | TYPE_CANONICAL (t) = t; | |
736 | ||
737 | layout_type (t); | |
738 | ||
739 | return t; | |
740 | ||
741 | } | |
742 | ||
d5f4eddd JM |
743 | /* Returns EXPR cast to rvalue reference type, like std::move. */ |
744 | ||
745 | tree | |
746 | move (tree expr) | |
747 | { | |
748 | tree type = TREE_TYPE (expr); | |
749 | gcc_assert (TREE_CODE (type) != REFERENCE_TYPE); | |
750 | type = cp_build_reference_type (type, /*rval*/true); | |
751 | return build_static_cast (type, expr, tf_warning_or_error); | |
752 | } | |
753 | ||
9ae165a0 DG |
754 | /* Used by the C++ front end to build qualified array types. However, |
755 | the C version of this function does not properly maintain canonical | |
756 | types (which are not used in C). */ | |
757 | tree | |
758 | c_build_qualified_type (tree type, int type_quals) | |
759 | { | |
760 | return cp_build_qualified_type (type, type_quals); | |
761 | } | |
8af2fec4 | 762 | |
8d08fdba | 763 | \f |
adecb3f4 MM |
764 | /* Make a variant of TYPE, qualified with the TYPE_QUALS. Handles |
765 | arrays correctly. In particular, if TYPE is an array of T's, and | |
c2ea3a40 | 766 | TYPE_QUALS is non-empty, returns an array of qualified T's. |
9f63daea | 767 | |
39a13be5 | 768 | FLAGS determines how to deal with ill-formed qualifications. If |
4f2b0fb2 NS |
769 | tf_ignore_bad_quals is set, then bad qualifications are dropped |
770 | (this is permitted if TYPE was introduced via a typedef or template | |
771 | type parameter). If bad qualifications are dropped and tf_warning | |
772 | is set, then a warning is issued for non-const qualifications. If | |
773 | tf_ignore_bad_quals is not set and tf_error is not set, we | |
774 | return error_mark_node. Otherwise, we issue an error, and ignore | |
775 | the qualifications. | |
776 | ||
777 | Qualification of a reference type is valid when the reference came | |
778 | via a typedef or template type argument. [dcl.ref] No such | |
779 | dispensation is provided for qualifying a function type. [dcl.fct] | |
780 | DR 295 queries this and the proposed resolution brings it into line | |
34cd5ae7 | 781 | with qualifying a reference. We implement the DR. We also behave |
4f2b0fb2 | 782 | in a similar manner for restricting non-pointer types. */ |
9f63daea | 783 | |
f376e137 | 784 | tree |
9f63daea | 785 | cp_build_qualified_type_real (tree type, |
0cbd7506 MS |
786 | int type_quals, |
787 | tsubst_flags_t complain) | |
f376e137 | 788 | { |
2adeacc9 | 789 | tree result; |
4f2b0fb2 | 790 | int bad_quals = TYPE_UNQUALIFIED; |
2adeacc9 | 791 | |
e76a2646 MS |
792 | if (type == error_mark_node) |
793 | return type; | |
e271912d | 794 | |
89d684bb | 795 | if (type_quals == cp_type_quals (type)) |
e271912d JM |
796 | return type; |
797 | ||
4f2b0fb2 | 798 | if (TREE_CODE (type) == ARRAY_TYPE) |
f376e137 | 799 | { |
db3626d1 MM |
800 | /* In C++, the qualification really applies to the array element |
801 | type. Obtain the appropriately qualified element type. */ | |
802 | tree t; | |
9f63daea EC |
803 | tree element_type |
804 | = cp_build_qualified_type_real (TREE_TYPE (type), | |
db3626d1 MM |
805 | type_quals, |
806 | complain); | |
807 | ||
808 | if (element_type == error_mark_node) | |
adecb3f4 | 809 | return error_mark_node; |
f376e137 | 810 | |
38e40fcd JM |
811 | /* See if we already have an identically qualified type. Tests |
812 | should be equivalent to those in check_qualified_type. */ | |
29fae15c | 813 | for (t = TYPE_MAIN_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) |
9f63daea | 814 | if (cp_type_quals (t) == type_quals |
29fae15c | 815 | && TYPE_NAME (t) == TYPE_NAME (type) |
38e40fcd JM |
816 | && TYPE_CONTEXT (t) == TYPE_CONTEXT (type) |
817 | && attribute_list_equal (TYPE_ATTRIBUTES (t), | |
818 | TYPE_ATTRIBUTES (type))) | |
29fae15c | 819 | break; |
9f63daea | 820 | |
29fae15c | 821 | if (!t) |
38e40fcd JM |
822 | { |
823 | t = build_cplus_array_type (element_type, TYPE_DOMAIN (type)); | |
824 | ||
825 | /* Keep the typedef name. */ | |
826 | if (TYPE_NAME (t) != TYPE_NAME (type)) | |
827 | { | |
828 | t = build_variant_type_copy (t); | |
829 | TYPE_NAME (t) = TYPE_NAME (type); | |
830 | } | |
831 | } | |
f376e137 | 832 | |
db3626d1 | 833 | /* Even if we already had this variant, we update |
834c6dff | 834 | TYPE_NEEDS_CONSTRUCTING and TYPE_HAS_NONTRIVIAL_DESTRUCTOR in case |
9f63daea EC |
835 | they changed since the variant was originally created. |
836 | ||
db3626d1 MM |
837 | This seems hokey; if there is some way to use a previous |
838 | variant *without* coming through here, | |
839 | TYPE_NEEDS_CONSTRUCTING will never be updated. */ | |
9f63daea | 840 | TYPE_NEEDS_CONSTRUCTING (t) |
db3626d1 | 841 | = TYPE_NEEDS_CONSTRUCTING (TYPE_MAIN_VARIANT (element_type)); |
9f63daea | 842 | TYPE_HAS_NONTRIVIAL_DESTRUCTOR (t) |
834c6dff | 843 | = TYPE_HAS_NONTRIVIAL_DESTRUCTOR (TYPE_MAIN_VARIANT (element_type)); |
db3626d1 | 844 | return t; |
f376e137 | 845 | } |
2adeacc9 MM |
846 | else if (TYPE_PTRMEMFUNC_P (type)) |
847 | { | |
848 | /* For a pointer-to-member type, we can't just return a | |
849 | cv-qualified version of the RECORD_TYPE. If we do, we | |
4f2b0fb2 | 850 | haven't changed the field that contains the actual pointer to |
2adeacc9 MM |
851 | a method, and so TYPE_PTRMEMFUNC_FN_TYPE will be wrong. */ |
852 | tree t; | |
853 | ||
854 | t = TYPE_PTRMEMFUNC_FN_TYPE (type); | |
855 | t = cp_build_qualified_type_real (t, type_quals, complain); | |
46cbda4a | 856 | return build_ptrmemfunc_type (t); |
2adeacc9 | 857 | } |
9a3c2683 JJ |
858 | else if (TREE_CODE (type) == TYPE_PACK_EXPANSION) |
859 | { | |
860 | tree t = PACK_EXPANSION_PATTERN (type); | |
861 | ||
862 | t = cp_build_qualified_type_real (t, type_quals, complain); | |
863 | return make_pack_expansion (t); | |
864 | } | |
9f63daea | 865 | |
39a13be5 | 866 | /* A reference or method type shall not be cv-qualified. |
93e1ddcf JM |
867 | [dcl.ref], [dcl.fct]. This used to be an error, but as of DR 295 |
868 | (in CD1) we always ignore extra cv-quals on functions. */ | |
4b011bbf JM |
869 | if (type_quals & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE) |
870 | && (TREE_CODE (type) == REFERENCE_TYPE | |
2872152c | 871 | || TREE_CODE (type) == FUNCTION_TYPE |
4b011bbf JM |
872 | || TREE_CODE (type) == METHOD_TYPE)) |
873 | { | |
93e1ddcf JM |
874 | if (TREE_CODE (type) == REFERENCE_TYPE) |
875 | bad_quals |= type_quals & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE); | |
4b011bbf JM |
876 | type_quals &= ~(TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE); |
877 | } | |
9f63daea | 878 | |
2872152c JM |
879 | /* But preserve any function-cv-quals on a FUNCTION_TYPE. */ |
880 | if (TREE_CODE (type) == FUNCTION_TYPE) | |
881 | type_quals |= type_memfn_quals (type); | |
882 | ||
4b011bbf | 883 | /* A restrict-qualified type must be a pointer (or reference) |
0d9c0892 | 884 | to object or incomplete type. */ |
4b011bbf JM |
885 | if ((type_quals & TYPE_QUAL_RESTRICT) |
886 | && TREE_CODE (type) != TEMPLATE_TYPE_PARM | |
887 | && TREE_CODE (type) != TYPENAME_TYPE | |
888 | && !POINTER_TYPE_P (type)) | |
889 | { | |
890 | bad_quals |= TYPE_QUAL_RESTRICT; | |
891 | type_quals &= ~TYPE_QUAL_RESTRICT; | |
892 | } | |
893 | ||
93e1ddcf JM |
894 | if (bad_quals == TYPE_UNQUALIFIED |
895 | || (complain & tf_ignore_bad_quals)) | |
4b011bbf | 896 | /*OK*/; |
93e1ddcf | 897 | else if (!(complain & tf_error)) |
4b011bbf | 898 | return error_mark_node; |
4b011bbf JM |
899 | else |
900 | { | |
93e1ddcf JM |
901 | tree bad_type = build_qualified_type (ptr_type_node, bad_quals); |
902 | error ("%qV qualifiers cannot be applied to %qT", | |
903 | bad_type, type); | |
4b011bbf | 904 | } |
9f63daea | 905 | |
2adeacc9 MM |
906 | /* Retrieve (or create) the appropriately qualified variant. */ |
907 | result = build_qualified_type (type, type_quals); | |
908 | ||
909 | /* If this was a pointer-to-method type, and we just made a copy, | |
3cfab7ec GK |
910 | then we need to unshare the record that holds the cached |
911 | pointer-to-member-function type, because these will be distinct | |
912 | between the unqualified and qualified types. */ | |
9f63daea | 913 | if (result != type |
2adeacc9 | 914 | && TREE_CODE (type) == POINTER_TYPE |
0f67bdf1 JM |
915 | && TREE_CODE (TREE_TYPE (type)) == METHOD_TYPE |
916 | && TYPE_LANG_SPECIFIC (result) == TYPE_LANG_SPECIFIC (type)) | |
3cfab7ec | 917 | TYPE_LANG_SPECIFIC (result) = NULL; |
2adeacc9 | 918 | |
7aa4a1df DG |
919 | /* We may also have ended up building a new copy of the canonical |
920 | type of a pointer-to-method type, which could have the same | |
921 | sharing problem described above. */ | |
922 | if (TYPE_CANONICAL (result) != TYPE_CANONICAL (type) | |
923 | && TREE_CODE (type) == POINTER_TYPE | |
924 | && TREE_CODE (TREE_TYPE (type)) == METHOD_TYPE | |
925 | && (TYPE_LANG_SPECIFIC (TYPE_CANONICAL (result)) | |
926 | == TYPE_LANG_SPECIFIC (TYPE_CANONICAL (type)))) | |
927 | TYPE_LANG_SPECIFIC (TYPE_CANONICAL (result)) = NULL; | |
7aa4a1df | 928 | |
2adeacc9 | 929 | return result; |
f376e137 | 930 | } |
53929c47 | 931 | |
164247b0 JM |
932 | /* Return TYPE with const and volatile removed. */ |
933 | ||
934 | tree | |
935 | cv_unqualified (tree type) | |
936 | { | |
ea8b8aa0 JM |
937 | int quals; |
938 | ||
939 | if (type == error_mark_node) | |
940 | return type; | |
941 | ||
a3360e77 | 942 | quals = cp_type_quals (type); |
164247b0 JM |
943 | quals &= ~(TYPE_QUAL_CONST|TYPE_QUAL_VOLATILE); |
944 | return cp_build_qualified_type (type, quals); | |
945 | } | |
946 | ||
cd41d410 DS |
947 | /* Builds a qualified variant of T that is not a typedef variant. |
948 | E.g. consider the following declarations: | |
949 | typedef const int ConstInt; | |
950 | typedef ConstInt* PtrConstInt; | |
951 | If T is PtrConstInt, this function returns a type representing | |
952 | const int*. | |
953 | In other words, if T is a typedef, the function returns the underlying type. | |
954 | The cv-qualification and attributes of the type returned match the | |
955 | input type. | |
956 | They will always be compatible types. | |
957 | The returned type is built so that all of its subtypes | |
958 | recursively have their typedefs stripped as well. | |
959 | ||
960 | This is different from just returning TYPE_CANONICAL (T) | |
961 | Because of several reasons: | |
962 | * If T is a type that needs structural equality | |
963 | its TYPE_CANONICAL (T) will be NULL. | |
964 | * TYPE_CANONICAL (T) desn't carry type attributes | |
965 | and looses template parameter names. */ | |
53929c47 JM |
966 | |
967 | tree | |
cd41d410 | 968 | strip_typedefs (tree t) |
53929c47 | 969 | { |
cd41d410 DS |
970 | tree result = NULL, type = NULL, t0 = NULL; |
971 | ||
972 | if (!t || t == error_mark_node || t == TYPE_CANONICAL (t)) | |
973 | return t; | |
974 | ||
975 | gcc_assert (TYPE_P (t)); | |
976 | ||
977 | switch (TREE_CODE (t)) | |
978 | { | |
979 | case POINTER_TYPE: | |
980 | type = strip_typedefs (TREE_TYPE (t)); | |
981 | result = build_pointer_type (type); | |
982 | break; | |
983 | case REFERENCE_TYPE: | |
984 | type = strip_typedefs (TREE_TYPE (t)); | |
985 | result = cp_build_reference_type (type, TYPE_REF_IS_RVALUE (t)); | |
986 | break; | |
987 | case OFFSET_TYPE: | |
988 | t0 = strip_typedefs (TYPE_OFFSET_BASETYPE (t)); | |
989 | type = strip_typedefs (TREE_TYPE (t)); | |
990 | result = build_offset_type (t0, type); | |
991 | break; | |
992 | case RECORD_TYPE: | |
993 | if (TYPE_PTRMEMFUNC_P (t)) | |
994 | { | |
995 | t0 = strip_typedefs (TYPE_PTRMEMFUNC_FN_TYPE (t)); | |
996 | result = build_ptrmemfunc_type (t0); | |
997 | } | |
998 | break; | |
999 | case ARRAY_TYPE: | |
1000 | type = strip_typedefs (TREE_TYPE (t)); | |
1001 | t0 = strip_typedefs (TYPE_DOMAIN (t));; | |
1002 | result = build_cplus_array_type (type, t0); | |
1003 | break; | |
1004 | case FUNCTION_TYPE: | |
1005 | case METHOD_TYPE: | |
1006 | { | |
1007 | tree arg_types = NULL, arg_node, arg_type; | |
1008 | for (arg_node = TYPE_ARG_TYPES (t); | |
1009 | arg_node; | |
1010 | arg_node = TREE_CHAIN (arg_node)) | |
1011 | { | |
1012 | if (arg_node == void_list_node) | |
1013 | break; | |
1014 | arg_type = strip_typedefs (TREE_VALUE (arg_node)); | |
1015 | gcc_assert (arg_type); | |
1016 | ||
1017 | arg_types = | |
1018 | tree_cons (TREE_PURPOSE (arg_node), arg_type, arg_types); | |
1019 | } | |
1020 | ||
1021 | if (arg_types) | |
1022 | arg_types = nreverse (arg_types); | |
1023 | ||
1024 | /* A list of parameters not ending with an ellipsis | |
1025 | must end with void_list_node. */ | |
1026 | if (arg_node) | |
1027 | arg_types = chainon (arg_types, void_list_node); | |
1028 | ||
1029 | type = strip_typedefs (TREE_TYPE (t)); | |
1030 | if (TREE_CODE (t) == METHOD_TYPE) | |
1031 | { | |
1032 | tree class_type = TREE_TYPE (TREE_VALUE (arg_types)); | |
1033 | gcc_assert (class_type); | |
1034 | result = | |
1035 | build_method_type_directly (class_type, type, | |
1036 | TREE_CHAIN (arg_types)); | |
1037 | } | |
1038 | else | |
2872152c | 1039 | { |
cd41d410 DS |
1040 | result = build_function_type (type, |
1041 | arg_types); | |
2872152c JM |
1042 | result = apply_memfn_quals (result, type_memfn_quals (t)); |
1043 | } | |
3c3905fc JM |
1044 | |
1045 | if (TYPE_RAISES_EXCEPTIONS (t)) | |
1046 | result = build_exception_variant (result, | |
1047 | TYPE_RAISES_EXCEPTIONS (t)); | |
cd41d410 DS |
1048 | } |
1049 | break; | |
e6c2fc5d DS |
1050 | case TYPENAME_TYPE: |
1051 | result = make_typename_type (strip_typedefs (TYPE_CONTEXT (t)), | |
1052 | TYPENAME_TYPE_FULLNAME (t), | |
1053 | typename_type, tf_none); | |
1054 | break; | |
cd41d410 DS |
1055 | default: |
1056 | break; | |
1057 | } | |
1ad8aeeb | 1058 | |
cd41d410 DS |
1059 | if (!result) |
1060 | result = TYPE_MAIN_VARIANT (t); | |
3c3905fc JM |
1061 | if (TYPE_ATTRIBUTES (t)) |
1062 | result = cp_build_type_attribute_variant (result, TYPE_ATTRIBUTES (t)); | |
cd41d410 | 1063 | return cp_build_qualified_type (result, cp_type_quals (t)); |
53929c47 | 1064 | } |
cd41d410 | 1065 | |
9cf10655 DS |
1066 | /* Setup a TYPE_DECL node as a typedef representation. |
1067 | See comments of set_underlying_type in c-common.c. */ | |
1068 | ||
1069 | void | |
1070 | cp_set_underlying_type (tree t) | |
1071 | { | |
1072 | set_underlying_type (t); | |
e96ce650 DS |
1073 | /* If T is a template type parm, make it require structural equality. |
1074 | This is useful when comparing two template type parms, | |
9cf10655 | 1075 | because it forces the comparison of the template parameters of their |
e96ce650 DS |
1076 | decls. */ |
1077 | if (TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM) | |
9cf10655 DS |
1078 | SET_TYPE_STRUCTURAL_EQUALITY (TREE_TYPE (t)); |
1079 | } | |
1080 | ||
f376e137 | 1081 | \f |
48b45647 NS |
1082 | /* Makes a copy of BINFO and TYPE, which is to be inherited into a |
1083 | graph dominated by T. If BINFO is NULL, TYPE is a dependent base, | |
1084 | and we do a shallow copy. If BINFO is non-NULL, we do a deep copy. | |
1085 | VIRT indicates whether TYPE is inherited virtually or not. | |
1086 | IGO_PREV points at the previous binfo of the inheritance graph | |
1087 | order chain. The newly copied binfo's TREE_CHAIN forms this | |
1088 | ordering. | |
1089 | ||
1090 | The CLASSTYPE_VBASECLASSES vector of T is constructed in the | |
1091 | correct order. That is in the order the bases themselves should be | |
1092 | constructed in. | |
dbbf88d1 NS |
1093 | |
1094 | The BINFO_INHERITANCE of a virtual base class points to the binfo | |
48b45647 NS |
1095 | of the most derived type. ??? We could probably change this so that |
1096 | BINFO_INHERITANCE becomes synonymous with BINFO_PRIMARY, and hence | |
1097 | remove a field. They currently can only differ for primary virtual | |
1098 | virtual bases. */ | |
dbbf88d1 NS |
1099 | |
1100 | tree | |
48b45647 | 1101 | copy_binfo (tree binfo, tree type, tree t, tree *igo_prev, int virt) |
9a71c18b | 1102 | { |
48b45647 | 1103 | tree new_binfo; |
9a71c18b | 1104 | |
48b45647 NS |
1105 | if (virt) |
1106 | { | |
1107 | /* See if we've already made this virtual base. */ | |
1108 | new_binfo = binfo_for_vbase (type, t); | |
1109 | if (new_binfo) | |
1110 | return new_binfo; | |
1111 | } | |
9f63daea | 1112 | |
fa743e8c | 1113 | new_binfo = make_tree_binfo (binfo ? BINFO_N_BASE_BINFOS (binfo) : 0); |
48b45647 | 1114 | BINFO_TYPE (new_binfo) = type; |
9a71c18b | 1115 | |
48b45647 NS |
1116 | /* Chain it into the inheritance graph. */ |
1117 | TREE_CHAIN (*igo_prev) = new_binfo; | |
1118 | *igo_prev = new_binfo; | |
9f63daea | 1119 | |
48b45647 | 1120 | if (binfo) |
dfbcd65a | 1121 | { |
fa743e8c NS |
1122 | int ix; |
1123 | tree base_binfo; | |
9f63daea | 1124 | |
50bc768d | 1125 | gcc_assert (!BINFO_DEPENDENT_BASE_P (binfo)); |
539ed333 | 1126 | gcc_assert (SAME_BINFO_TYPE_P (BINFO_TYPE (binfo), type)); |
9f63daea | 1127 | |
48b45647 NS |
1128 | BINFO_OFFSET (new_binfo) = BINFO_OFFSET (binfo); |
1129 | BINFO_VIRTUALS (new_binfo) = BINFO_VIRTUALS (binfo); | |
9f63daea | 1130 | |
fa743e8c NS |
1131 | /* We do not need to copy the accesses, as they are read only. */ |
1132 | BINFO_BASE_ACCESSES (new_binfo) = BINFO_BASE_ACCESSES (binfo); | |
9f63daea | 1133 | |
48b45647 | 1134 | /* Recursively copy base binfos of BINFO. */ |
fa743e8c | 1135 | for (ix = 0; BINFO_BASE_ITERATE (binfo, ix, base_binfo); ix++) |
dbbf88d1 | 1136 | { |
48b45647 | 1137 | tree new_base_binfo; |
9f63daea | 1138 | |
50bc768d | 1139 | gcc_assert (!BINFO_DEPENDENT_BASE_P (base_binfo)); |
48b45647 NS |
1140 | new_base_binfo = copy_binfo (base_binfo, BINFO_TYPE (base_binfo), |
1141 | t, igo_prev, | |
1142 | BINFO_VIRTUAL_P (base_binfo)); | |
9f63daea | 1143 | |
48b45647 NS |
1144 | if (!BINFO_INHERITANCE_CHAIN (new_base_binfo)) |
1145 | BINFO_INHERITANCE_CHAIN (new_base_binfo) = new_binfo; | |
fa743e8c | 1146 | BINFO_BASE_APPEND (new_binfo, new_base_binfo); |
dbbf88d1 | 1147 | } |
9a71c18b | 1148 | } |
48b45647 NS |
1149 | else |
1150 | BINFO_DEPENDENT_BASE_P (new_binfo) = 1; | |
9f63daea | 1151 | |
48b45647 NS |
1152 | if (virt) |
1153 | { | |
1154 | /* Push it onto the list after any virtual bases it contains | |
1155 | will have been pushed. */ | |
1156 | VEC_quick_push (tree, CLASSTYPE_VBASECLASSES (t), new_binfo); | |
1157 | BINFO_VIRTUAL_P (new_binfo) = 1; | |
1158 | BINFO_INHERITANCE_CHAIN (new_binfo) = TYPE_BINFO (t); | |
1159 | } | |
9f63daea | 1160 | |
48b45647 | 1161 | return new_binfo; |
9a71c18b | 1162 | } |
8d08fdba MS |
1163 | \f |
1164 | /* Hashing of lists so that we don't make duplicates. | |
1165 | The entry point is `list_hash_canon'. */ | |
1166 | ||
8d08fdba MS |
1167 | /* Now here is the hash table. When recording a list, it is added |
1168 | to the slot whose index is the hash code mod the table size. | |
1169 | Note that the hash table is used for several kinds of lists. | |
1170 | While all these live in the same table, they are completely independent, | |
1171 | and the hash code is computed differently for each of these. */ | |
1172 | ||
e2500fed | 1173 | static GTY ((param_is (union tree_node))) htab_t list_hash_table; |
9ccb25d5 | 1174 | |
9f63daea | 1175 | struct list_proxy |
9ccb25d5 MM |
1176 | { |
1177 | tree purpose; | |
1178 | tree value; | |
1179 | tree chain; | |
1180 | }; | |
1181 | ||
1182 | /* Compare ENTRY (an entry in the hash table) with DATA (a list_proxy | |
1183 | for a node we are thinking about adding). */ | |
1184 | ||
1185 | static int | |
b57b79f7 | 1186 | list_hash_eq (const void* entry, const void* data) |
9ccb25d5 | 1187 | { |
741ac903 KG |
1188 | const_tree const t = (const_tree) entry; |
1189 | const struct list_proxy *const proxy = (const struct list_proxy *) data; | |
9ccb25d5 MM |
1190 | |
1191 | return (TREE_VALUE (t) == proxy->value | |
1192 | && TREE_PURPOSE (t) == proxy->purpose | |
1193 | && TREE_CHAIN (t) == proxy->chain); | |
1194 | } | |
8d08fdba MS |
1195 | |
1196 | /* Compute a hash code for a list (chain of TREE_LIST nodes | |
1197 | with goodies in the TREE_PURPOSE, TREE_VALUE, and bits of the | |
1198 | TREE_COMMON slots), by adding the hash codes of the individual entries. */ | |
1199 | ||
9ccb25d5 | 1200 | static hashval_t |
b57b79f7 | 1201 | list_hash_pieces (tree purpose, tree value, tree chain) |
8d08fdba | 1202 | { |
9ccb25d5 | 1203 | hashval_t hashcode = 0; |
9f63daea | 1204 | |
37c46b43 | 1205 | if (chain) |
fd917e0d | 1206 | hashcode += TREE_HASH (chain); |
9f63daea | 1207 | |
37c46b43 | 1208 | if (value) |
fd917e0d | 1209 | hashcode += TREE_HASH (value); |
8d08fdba MS |
1210 | else |
1211 | hashcode += 1007; | |
37c46b43 | 1212 | if (purpose) |
fd917e0d | 1213 | hashcode += TREE_HASH (purpose); |
8d08fdba MS |
1214 | else |
1215 | hashcode += 1009; | |
1216 | return hashcode; | |
1217 | } | |
1218 | ||
9ccb25d5 | 1219 | /* Hash an already existing TREE_LIST. */ |
8d08fdba | 1220 | |
9ccb25d5 | 1221 | static hashval_t |
b57b79f7 | 1222 | list_hash (const void* p) |
8d08fdba | 1223 | { |
741ac903 | 1224 | const_tree const t = (const_tree) p; |
9f63daea EC |
1225 | return list_hash_pieces (TREE_PURPOSE (t), |
1226 | TREE_VALUE (t), | |
9ccb25d5 | 1227 | TREE_CHAIN (t)); |
8d08fdba MS |
1228 | } |
1229 | ||
51632249 JM |
1230 | /* Given list components PURPOSE, VALUE, AND CHAIN, return the canonical |
1231 | object for an identical list if one already exists. Otherwise, build a | |
1232 | new one, and record it as the canonical object. */ | |
8d08fdba | 1233 | |
8d08fdba | 1234 | tree |
b57b79f7 | 1235 | hash_tree_cons (tree purpose, tree value, tree chain) |
8d08fdba | 1236 | { |
a703fb38 | 1237 | int hashcode = 0; |
fad205ff | 1238 | void **slot; |
9ccb25d5 MM |
1239 | struct list_proxy proxy; |
1240 | ||
1241 | /* Hash the list node. */ | |
1242 | hashcode = list_hash_pieces (purpose, value, chain); | |
1243 | /* Create a proxy for the TREE_LIST we would like to create. We | |
1244 | don't actually create it so as to avoid creating garbage. */ | |
1245 | proxy.purpose = purpose; | |
1246 | proxy.value = value; | |
1247 | proxy.chain = chain; | |
1248 | /* See if it is already in the table. */ | |
1249 | slot = htab_find_slot_with_hash (list_hash_table, &proxy, hashcode, | |
1250 | INSERT); | |
1251 | /* If not, create a new node. */ | |
1252 | if (!*slot) | |
fad205ff | 1253 | *slot = tree_cons (purpose, value, chain); |
67f5655f | 1254 | return (tree) *slot; |
8d08fdba MS |
1255 | } |
1256 | ||
1257 | /* Constructor for hashed lists. */ | |
e92cc029 | 1258 | |
8d08fdba | 1259 | tree |
b57b79f7 | 1260 | hash_tree_chain (tree value, tree chain) |
8d08fdba | 1261 | { |
51632249 | 1262 | return hash_tree_cons (NULL_TREE, value, chain); |
8d08fdba | 1263 | } |
8d08fdba | 1264 | \f |
8d08fdba | 1265 | void |
b57b79f7 | 1266 | debug_binfo (tree elem) |
8d08fdba | 1267 | { |
fed3cef0 | 1268 | HOST_WIDE_INT n; |
8d08fdba MS |
1269 | tree virtuals; |
1270 | ||
90ff44cf KG |
1271 | fprintf (stderr, "type \"%s\", offset = " HOST_WIDE_INT_PRINT_DEC |
1272 | "\nvtable type:\n", | |
1273 | TYPE_NAME_STRING (BINFO_TYPE (elem)), | |
fed3cef0 | 1274 | TREE_INT_CST_LOW (BINFO_OFFSET (elem))); |
8d08fdba MS |
1275 | debug_tree (BINFO_TYPE (elem)); |
1276 | if (BINFO_VTABLE (elem)) | |
fed3cef0 | 1277 | fprintf (stderr, "vtable decl \"%s\"\n", |
c35cce41 | 1278 | IDENTIFIER_POINTER (DECL_NAME (get_vtbl_decl_for_binfo (elem)))); |
8d08fdba MS |
1279 | else |
1280 | fprintf (stderr, "no vtable decl yet\n"); | |
1281 | fprintf (stderr, "virtuals:\n"); | |
da3d4dfa | 1282 | virtuals = BINFO_VIRTUALS (elem); |
1f84ec23 | 1283 | n = 0; |
f30432d7 | 1284 | |
8d08fdba MS |
1285 | while (virtuals) |
1286 | { | |
83f2ccf4 | 1287 | tree fndecl = TREE_VALUE (virtuals); |
71e89f27 | 1288 | fprintf (stderr, "%s [%ld =? %ld]\n", |
8d08fdba | 1289 | IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl)), |
71e89f27 | 1290 | (long) n, (long) TREE_INT_CST_LOW (DECL_VINDEX (fndecl))); |
f30432d7 | 1291 | ++n; |
8d08fdba | 1292 | virtuals = TREE_CHAIN (virtuals); |
8d08fdba MS |
1293 | } |
1294 | } | |
1295 | ||
02ed62dd MM |
1296 | /* Build a representation for the qualified name SCOPE::NAME. TYPE is |
1297 | the type of the result expression, if known, or NULL_TREE if the | |
1298 | resulting expression is type-dependent. If TEMPLATE_P is true, | |
1299 | NAME is known to be a template because the user explicitly used the | |
3db45ab5 | 1300 | "template" keyword after the "::". |
02ed62dd MM |
1301 | |
1302 | All SCOPE_REFs should be built by use of this function. */ | |
1303 | ||
1304 | tree | |
1305 | build_qualified_name (tree type, tree scope, tree name, bool template_p) | |
1306 | { | |
1307 | tree t; | |
36569397 MM |
1308 | if (type == error_mark_node |
1309 | || scope == error_mark_node | |
1310 | || name == error_mark_node) | |
1311 | return error_mark_node; | |
02ed62dd MM |
1312 | t = build2 (SCOPE_REF, type, scope, name); |
1313 | QUALIFIED_NAME_IS_TEMPLATE (t) = template_p; | |
7097b3ac JM |
1314 | if (type) |
1315 | t = convert_from_reference (t); | |
02ed62dd MM |
1316 | return t; |
1317 | } | |
1318 | ||
3b426391 | 1319 | /* Returns nonzero if X is an expression for a (possibly overloaded) |
eff3a276 MM |
1320 | function. If "f" is a function or function template, "f", "c->f", |
1321 | "c.f", "C::f", and "f<int>" will all be considered possibly | |
1322 | overloaded functions. Returns 2 if the function is actually | |
b9704fc5 | 1323 | overloaded, i.e., if it is impossible to know the type of the |
eff3a276 MM |
1324 | function without performing overload resolution. */ |
1325 | ||
8d08fdba | 1326 | int |
b57b79f7 | 1327 | is_overloaded_fn (tree x) |
8d08fdba | 1328 | { |
4bb0968f | 1329 | /* A baselink is also considered an overloaded function. */ |
ccbe00a4 JM |
1330 | if (TREE_CODE (x) == OFFSET_REF |
1331 | || TREE_CODE (x) == COMPONENT_REF) | |
05e0b2f4 | 1332 | x = TREE_OPERAND (x, 1); |
4bb0968f | 1333 | if (BASELINK_P (x)) |
da15dae6 | 1334 | x = BASELINK_FUNCTIONS (x); |
d095e03c JM |
1335 | if (TREE_CODE (x) == TEMPLATE_ID_EXPR) |
1336 | x = TREE_OPERAND (x, 0); | |
1337 | if (DECL_FUNCTION_TEMPLATE_P (OVL_CURRENT (x)) | |
eff3a276 MM |
1338 | || (TREE_CODE (x) == OVERLOAD && OVL_CHAIN (x))) |
1339 | return 2; | |
1340 | return (TREE_CODE (x) == FUNCTION_DECL | |
1341 | || TREE_CODE (x) == OVERLOAD); | |
8d08fdba MS |
1342 | } |
1343 | ||
eff3a276 MM |
1344 | /* Returns true iff X is an expression for an overloaded function |
1345 | whose type cannot be known without performing overload | |
1346 | resolution. */ | |
1347 | ||
1348 | bool | |
b57b79f7 | 1349 | really_overloaded_fn (tree x) |
9f63daea | 1350 | { |
eff3a276 | 1351 | return is_overloaded_fn (x) == 2; |
8926095f MS |
1352 | } |
1353 | ||
8d08fdba | 1354 | tree |
294e855f | 1355 | get_fns (tree from) |
8d08fdba | 1356 | { |
50bc768d | 1357 | gcc_assert (is_overloaded_fn (from)); |
c6002625 | 1358 | /* A baselink is also considered an overloaded function. */ |
7e361ae6 JM |
1359 | if (TREE_CODE (from) == OFFSET_REF |
1360 | || TREE_CODE (from) == COMPONENT_REF) | |
ccbe00a4 | 1361 | from = TREE_OPERAND (from, 1); |
4bb0968f | 1362 | if (BASELINK_P (from)) |
da15dae6 | 1363 | from = BASELINK_FUNCTIONS (from); |
d095e03c JM |
1364 | if (TREE_CODE (from) == TEMPLATE_ID_EXPR) |
1365 | from = TREE_OPERAND (from, 0); | |
294e855f JM |
1366 | return from; |
1367 | } | |
1368 | ||
1369 | tree | |
1370 | get_first_fn (tree from) | |
1371 | { | |
1372 | return OVL_CURRENT (get_fns (from)); | |
2c73f9f5 | 1373 | } |
8d08fdba | 1374 | |
c6002625 | 1375 | /* Return a new OVL node, concatenating it with the old one. */ |
2c73f9f5 ML |
1376 | |
1377 | tree | |
b57b79f7 | 1378 | ovl_cons (tree decl, tree chain) |
2c73f9f5 ML |
1379 | { |
1380 | tree result = make_node (OVERLOAD); | |
1381 | TREE_TYPE (result) = unknown_type_node; | |
1382 | OVL_FUNCTION (result) = decl; | |
1383 | TREE_CHAIN (result) = chain; | |
9f63daea | 1384 | |
2c73f9f5 ML |
1385 | return result; |
1386 | } | |
1387 | ||
2c73f9f5 ML |
1388 | /* Build a new overloaded function. If this is the first one, |
1389 | just return it; otherwise, ovl_cons the _DECLs */ | |
1390 | ||
1391 | tree | |
b57b79f7 | 1392 | build_overload (tree decl, tree chain) |
2c73f9f5 | 1393 | { |
161c12b0 | 1394 | if (! chain && TREE_CODE (decl) != TEMPLATE_DECL) |
2c73f9f5 | 1395 | return decl; |
161c12b0 | 1396 | if (chain && TREE_CODE (chain) != OVERLOAD) |
2c73f9f5 ML |
1397 | chain = ovl_cons (chain, NULL_TREE); |
1398 | return ovl_cons (decl, chain); | |
1399 | } | |
1400 | ||
8d08fdba MS |
1401 | \f |
1402 | #define PRINT_RING_SIZE 4 | |
1403 | ||
f41c4af3 JM |
1404 | static const char * |
1405 | cxx_printable_name_internal (tree decl, int v, bool translate) | |
8d08fdba | 1406 | { |
1bde0042 | 1407 | static unsigned int uid_ring[PRINT_RING_SIZE]; |
8d08fdba | 1408 | static char *print_ring[PRINT_RING_SIZE]; |
f41c4af3 | 1409 | static bool trans_ring[PRINT_RING_SIZE]; |
8d08fdba MS |
1410 | static int ring_counter; |
1411 | int i; | |
1412 | ||
1413 | /* Only cache functions. */ | |
2ba25f50 MS |
1414 | if (v < 2 |
1415 | || TREE_CODE (decl) != FUNCTION_DECL | |
8d08fdba | 1416 | || DECL_LANG_SPECIFIC (decl) == 0) |
f41c4af3 | 1417 | return lang_decl_name (decl, v, translate); |
8d08fdba MS |
1418 | |
1419 | /* See if this print name is lying around. */ | |
1420 | for (i = 0; i < PRINT_RING_SIZE; i++) | |
f41c4af3 | 1421 | if (uid_ring[i] == DECL_UID (decl) && translate == trans_ring[i]) |
8d08fdba MS |
1422 | /* yes, so return it. */ |
1423 | return print_ring[i]; | |
1424 | ||
1425 | if (++ring_counter == PRINT_RING_SIZE) | |
1426 | ring_counter = 0; | |
1427 | ||
1428 | if (current_function_decl != NULL_TREE) | |
1429 | { | |
8fa6fa79 JM |
1430 | /* There may be both translated and untranslated versions of the |
1431 | name cached. */ | |
1432 | for (i = 0; i < 2; i++) | |
1433 | { | |
1434 | if (uid_ring[ring_counter] == DECL_UID (current_function_decl)) | |
1435 | ring_counter += 1; | |
1436 | if (ring_counter == PRINT_RING_SIZE) | |
1437 | ring_counter = 0; | |
1438 | } | |
1bde0042 | 1439 | gcc_assert (uid_ring[ring_counter] != DECL_UID (current_function_decl)); |
8d08fdba MS |
1440 | } |
1441 | ||
1442 | if (print_ring[ring_counter]) | |
1443 | free (print_ring[ring_counter]); | |
1444 | ||
f41c4af3 | 1445 | print_ring[ring_counter] = xstrdup (lang_decl_name (decl, v, translate)); |
1bde0042 | 1446 | uid_ring[ring_counter] = DECL_UID (decl); |
f41c4af3 | 1447 | trans_ring[ring_counter] = translate; |
8d08fdba MS |
1448 | return print_ring[ring_counter]; |
1449 | } | |
f41c4af3 JM |
1450 | |
1451 | const char * | |
1452 | cxx_printable_name (tree decl, int v) | |
1453 | { | |
1454 | return cxx_printable_name_internal (decl, v, false); | |
1455 | } | |
1456 | ||
1457 | const char * | |
1458 | cxx_printable_name_translate (tree decl, int v) | |
1459 | { | |
1460 | return cxx_printable_name_internal (decl, v, true); | |
1461 | } | |
8d08fdba | 1462 | \f |
f30432d7 | 1463 | /* Build the FUNCTION_TYPE or METHOD_TYPE which may throw exceptions |
8d08fdba | 1464 | listed in RAISES. */ |
e92cc029 | 1465 | |
8d08fdba | 1466 | tree |
b57b79f7 | 1467 | build_exception_variant (tree type, tree raises) |
8d08fdba | 1468 | { |
3a55fb4c JM |
1469 | tree v; |
1470 | int type_quals; | |
8d08fdba | 1471 | |
3a55fb4c JM |
1472 | if (comp_except_specs (raises, TYPE_RAISES_EXCEPTIONS (type), ce_exact)) |
1473 | return type; | |
1474 | ||
1475 | type_quals = TYPE_QUALS (type); | |
1476 | for (v = TYPE_MAIN_VARIANT (type); v; v = TYPE_NEXT_VARIANT (v)) | |
896c3aa3 | 1477 | if (check_qualified_type (v, type, type_quals) |
3a55fb4c | 1478 | && comp_except_specs (raises, TYPE_RAISES_EXCEPTIONS (v), ce_exact)) |
4cc1d462 | 1479 | return v; |
8d08fdba MS |
1480 | |
1481 | /* Need to build a new variant. */ | |
8dd16ecc | 1482 | v = build_variant_type_copy (type); |
8d08fdba MS |
1483 | TYPE_RAISES_EXCEPTIONS (v) = raises; |
1484 | return v; | |
1485 | } | |
1486 | ||
dac65501 KL |
1487 | /* Given a TEMPLATE_TEMPLATE_PARM node T, create a new |
1488 | BOUND_TEMPLATE_TEMPLATE_PARM bound with NEWARGS as its template | |
1899c3a4 | 1489 | arguments. */ |
73b0fce8 KL |
1490 | |
1491 | tree | |
b57b79f7 | 1492 | bind_template_template_parm (tree t, tree newargs) |
73b0fce8 | 1493 | { |
1899c3a4 | 1494 | tree decl = TYPE_NAME (t); |
6b9b6b15 JM |
1495 | tree t2; |
1496 | ||
9e1e64ec | 1497 | t2 = cxx_make_type (BOUND_TEMPLATE_TEMPLATE_PARM); |
c2255bc4 AH |
1498 | decl = build_decl (input_location, |
1499 | TYPE_DECL, DECL_NAME (decl), NULL_TREE); | |
1899c3a4 | 1500 | |
dac65501 KL |
1501 | /* These nodes have to be created to reflect new TYPE_DECL and template |
1502 | arguments. */ | |
1503 | TEMPLATE_TYPE_PARM_INDEX (t2) = copy_node (TEMPLATE_TYPE_PARM_INDEX (t)); | |
1504 | TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (t2)) = decl; | |
1505 | TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (t2) | |
aa373032 | 1506 | = build_template_info (TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL (t), newargs); |
6b9b6b15 | 1507 | |
1899c3a4 KL |
1508 | TREE_TYPE (decl) = t2; |
1509 | TYPE_NAME (t2) = decl; | |
1510 | TYPE_STUB_DECL (t2) = decl; | |
dac65501 | 1511 | TYPE_SIZE (t2) = 0; |
06d40de8 | 1512 | SET_TYPE_STRUCTURAL_EQUALITY (t2); |
73b0fce8 | 1513 | |
73b0fce8 KL |
1514 | return t2; |
1515 | } | |
1516 | ||
bf3428d0 | 1517 | /* Called from count_trees via walk_tree. */ |
297a5329 JM |
1518 | |
1519 | static tree | |
44de5aeb | 1520 | count_trees_r (tree *tp, int *walk_subtrees, void *data) |
297a5329 | 1521 | { |
44de5aeb RK |
1522 | ++*((int *) data); |
1523 | ||
1524 | if (TYPE_P (*tp)) | |
1525 | *walk_subtrees = 0; | |
1526 | ||
297a5329 JM |
1527 | return NULL_TREE; |
1528 | } | |
1529 | ||
1530 | /* Debugging function for measuring the rough complexity of a tree | |
1531 | representation. */ | |
1532 | ||
1533 | int | |
b57b79f7 | 1534 | count_trees (tree t) |
297a5329 | 1535 | { |
bf3428d0 | 1536 | int n_trees = 0; |
14588106 | 1537 | cp_walk_tree_without_duplicates (&t, count_trees_r, &n_trees); |
297a5329 | 1538 | return n_trees; |
9f63daea | 1539 | } |
297a5329 | 1540 | |
b2244c65 MM |
1541 | /* Called from verify_stmt_tree via walk_tree. */ |
1542 | ||
1543 | static tree | |
9f63daea | 1544 | verify_stmt_tree_r (tree* tp, |
0cbd7506 MS |
1545 | int* walk_subtrees ATTRIBUTE_UNUSED , |
1546 | void* data) | |
b2244c65 MM |
1547 | { |
1548 | tree t = *tp; | |
1549 | htab_t *statements = (htab_t *) data; | |
1550 | void **slot; | |
1551 | ||
009ed910 | 1552 | if (!STATEMENT_CODE_P (TREE_CODE (t))) |
b2244c65 MM |
1553 | return NULL_TREE; |
1554 | ||
1555 | /* If this statement is already present in the hash table, then | |
1556 | there is a circularity in the statement tree. */ | |
315fb5db | 1557 | gcc_assert (!htab_find (*statements, t)); |
9f63daea | 1558 | |
b2244c65 MM |
1559 | slot = htab_find_slot (*statements, t, INSERT); |
1560 | *slot = t; | |
1561 | ||
1562 | return NULL_TREE; | |
1563 | } | |
1564 | ||
1565 | /* Debugging function to check that the statement T has not been | |
1566 | corrupted. For now, this function simply checks that T contains no | |
1567 | circularities. */ | |
1568 | ||
1569 | void | |
b57b79f7 | 1570 | verify_stmt_tree (tree t) |
b2244c65 MM |
1571 | { |
1572 | htab_t statements; | |
1573 | statements = htab_create (37, htab_hash_pointer, htab_eq_pointer, NULL); | |
14588106 | 1574 | cp_walk_tree (&t, verify_stmt_tree_r, &statements, NULL); |
b2244c65 MM |
1575 | htab_delete (statements); |
1576 | } | |
1577 | ||
50a6dbd7 | 1578 | /* Check if the type T depends on a type with no linkage and if so, return |
4684cd27 | 1579 | it. If RELAXED_P then do not consider a class type declared within |
ecc607fc | 1580 | a vague-linkage function to have no linkage. */ |
50a6dbd7 JM |
1581 | |
1582 | tree | |
4684cd27 | 1583 | no_linkage_check (tree t, bool relaxed_p) |
50a6dbd7 | 1584 | { |
caf43ca4 MM |
1585 | tree r; |
1586 | ||
2adeacc9 MM |
1587 | /* There's no point in checking linkage on template functions; we |
1588 | can't know their complete types. */ | |
1589 | if (processing_template_decl) | |
1590 | return NULL_TREE; | |
1591 | ||
caf43ca4 MM |
1592 | switch (TREE_CODE (t)) |
1593 | { | |
1594 | case RECORD_TYPE: | |
1595 | if (TYPE_PTRMEMFUNC_P (t)) | |
1596 | goto ptrmem; | |
e6d92cec JM |
1597 | /* Lambda types that don't have mangling scope have no linkage. We |
1598 | check CLASSTYPE_LAMBDA_EXPR here rather than LAMBDA_TYPE_P because | |
1599 | when we get here from pushtag none of the lambda information is | |
1600 | set up yet, so we want to assume that the lambda has linkage and | |
1601 | fix it up later if not. */ | |
1602 | if (CLASSTYPE_LAMBDA_EXPR (t) | |
1603 | && LAMBDA_TYPE_EXTRA_SCOPE (t) == NULL_TREE) | |
1604 | return t; | |
caf43ca4 MM |
1605 | /* Fall through. */ |
1606 | case UNION_TYPE: | |
1607 | if (!CLASS_TYPE_P (t)) | |
1608 | return NULL_TREE; | |
1609 | /* Fall through. */ | |
1610 | case ENUMERAL_TYPE: | |
ecc607fc | 1611 | /* Only treat anonymous types as having no linkage if they're at |
2f59d9e0 | 1612 | namespace scope. This is core issue 966. */ |
ecc607fc | 1613 | if (TYPE_ANONYMOUS_P (t) && TYPE_NAMESPACE_SCOPE_P (t)) |
caf43ca4 | 1614 | return t; |
ecc607fc | 1615 | |
e6d92cec | 1616 | for (r = CP_TYPE_CONTEXT (t); ; ) |
ecc607fc | 1617 | { |
e6d92cec JM |
1618 | /* If we're a nested type of a !TREE_PUBLIC class, we might not |
1619 | have linkage, or we might just be in an anonymous namespace. | |
1620 | If we're in a TREE_PUBLIC class, we have linkage. */ | |
1621 | if (TYPE_P (r) && !TREE_PUBLIC (TYPE_NAME (r))) | |
1622 | return no_linkage_check (TYPE_CONTEXT (t), relaxed_p); | |
1623 | else if (TREE_CODE (r) == FUNCTION_DECL) | |
1624 | { | |
d6dcdbd5 | 1625 | if (!relaxed_p || !vague_linkage_p (r)) |
e6d92cec JM |
1626 | return t; |
1627 | else | |
1628 | r = CP_DECL_CONTEXT (r); | |
1629 | } | |
ecc607fc | 1630 | else |
e6d92cec | 1631 | break; |
ecc607fc JM |
1632 | } |
1633 | ||
caf43ca4 MM |
1634 | return NULL_TREE; |
1635 | ||
1636 | case ARRAY_TYPE: | |
1637 | case POINTER_TYPE: | |
1638 | case REFERENCE_TYPE: | |
4684cd27 | 1639 | return no_linkage_check (TREE_TYPE (t), relaxed_p); |
caf43ca4 MM |
1640 | |
1641 | case OFFSET_TYPE: | |
1642 | ptrmem: | |
4684cd27 MM |
1643 | r = no_linkage_check (TYPE_PTRMEM_POINTED_TO_TYPE (t), |
1644 | relaxed_p); | |
caf43ca4 MM |
1645 | if (r) |
1646 | return r; | |
4684cd27 | 1647 | return no_linkage_check (TYPE_PTRMEM_CLASS_TYPE (t), relaxed_p); |
caf43ca4 MM |
1648 | |
1649 | case METHOD_TYPE: | |
4684cd27 | 1650 | r = no_linkage_check (TYPE_METHOD_BASETYPE (t), relaxed_p); |
caf43ca4 MM |
1651 | if (r) |
1652 | return r; | |
1653 | /* Fall through. */ | |
1654 | case FUNCTION_TYPE: | |
1655 | { | |
1656 | tree parm; | |
9f63daea EC |
1657 | for (parm = TYPE_ARG_TYPES (t); |
1658 | parm && parm != void_list_node; | |
caf43ca4 MM |
1659 | parm = TREE_CHAIN (parm)) |
1660 | { | |
4684cd27 | 1661 | r = no_linkage_check (TREE_VALUE (parm), relaxed_p); |
caf43ca4 MM |
1662 | if (r) |
1663 | return r; | |
1664 | } | |
4684cd27 | 1665 | return no_linkage_check (TREE_TYPE (t), relaxed_p); |
caf43ca4 MM |
1666 | } |
1667 | ||
1668 | default: | |
1669 | return NULL_TREE; | |
1670 | } | |
50a6dbd7 JM |
1671 | } |
1672 | ||
5566b478 MS |
1673 | #ifdef GATHER_STATISTICS |
1674 | extern int depth_reached; | |
1675 | #endif | |
1676 | ||
8d08fdba | 1677 | void |
b57b79f7 | 1678 | cxx_print_statistics (void) |
8d08fdba | 1679 | { |
8d08fdba MS |
1680 | print_search_statistics (); |
1681 | print_class_statistics (); | |
7dcfe861 | 1682 | print_template_statistics (); |
5566b478 MS |
1683 | #ifdef GATHER_STATISTICS |
1684 | fprintf (stderr, "maximum template instantiation depth reached: %d\n", | |
1685 | depth_reached); | |
1686 | #endif | |
8d08fdba MS |
1687 | } |
1688 | ||
e92cc029 MS |
1689 | /* Return, as an INTEGER_CST node, the number of elements for TYPE |
1690 | (which is an ARRAY_TYPE). This counts only elements of the top | |
1691 | array. */ | |
8d08fdba MS |
1692 | |
1693 | tree | |
b57b79f7 | 1694 | array_type_nelts_top (tree type) |
8d08fdba | 1695 | { |
db3927fb AH |
1696 | return fold_build2_loc (input_location, |
1697 | PLUS_EXPR, sizetype, | |
7866705a | 1698 | array_type_nelts (type), |
701e903a | 1699 | size_one_node); |
8d08fdba MS |
1700 | } |
1701 | ||
e92cc029 MS |
1702 | /* Return, as an INTEGER_CST node, the number of elements for TYPE |
1703 | (which is an ARRAY_TYPE). This one is a recursive count of all | |
1704 | ARRAY_TYPEs that are clumped together. */ | |
8d08fdba MS |
1705 | |
1706 | tree | |
b57b79f7 | 1707 | array_type_nelts_total (tree type) |
8d08fdba MS |
1708 | { |
1709 | tree sz = array_type_nelts_top (type); | |
1710 | type = TREE_TYPE (type); | |
1711 | while (TREE_CODE (type) == ARRAY_TYPE) | |
1712 | { | |
1713 | tree n = array_type_nelts_top (type); | |
db3927fb AH |
1714 | sz = fold_build2_loc (input_location, |
1715 | MULT_EXPR, sizetype, sz, n); | |
8d08fdba MS |
1716 | type = TREE_TYPE (type); |
1717 | } | |
1718 | return sz; | |
1719 | } | |
878cd289 | 1720 | |
b3ab27f3 MM |
1721 | /* Called from break_out_target_exprs via mapcar. */ |
1722 | ||
1723 | static tree | |
b57b79f7 | 1724 | bot_manip (tree* tp, int* walk_subtrees, void* data) |
878cd289 | 1725 | { |
8dfaeb63 MM |
1726 | splay_tree target_remap = ((splay_tree) data); |
1727 | tree t = *tp; | |
1728 | ||
4f976745 | 1729 | if (!TYPE_P (t) && TREE_CONSTANT (t)) |
8dfaeb63 | 1730 | { |
495d26d6 | 1731 | /* There can't be any TARGET_EXPRs or their slot variables below |
0cbd7506 MS |
1732 | this point. We used to check !TREE_SIDE_EFFECTS, but then we |
1733 | failed to copy an ADDR_EXPR of the slot VAR_DECL. */ | |
8dfaeb63 MM |
1734 | *walk_subtrees = 0; |
1735 | return NULL_TREE; | |
1736 | } | |
495d26d6 | 1737 | if (TREE_CODE (t) == TARGET_EXPR) |
73aad9b9 | 1738 | { |
b3ab27f3 MM |
1739 | tree u; |
1740 | ||
02531345 | 1741 | if (TREE_CODE (TREE_OPERAND (t, 1)) == AGGR_INIT_EXPR) |
7efc22ea | 1742 | u = build_cplus_new (TREE_TYPE (t), TREE_OPERAND (t, 1)); |
9f63daea | 1743 | else |
7efc22ea | 1744 | u = build_target_expr_with_type (TREE_OPERAND (t, 1), TREE_TYPE (t)); |
b3ab27f3 MM |
1745 | |
1746 | /* Map the old variable to the new one. */ | |
9f63daea EC |
1747 | splay_tree_insert (target_remap, |
1748 | (splay_tree_key) TREE_OPERAND (t, 0), | |
b3ab27f3 | 1749 | (splay_tree_value) TREE_OPERAND (u, 0)); |
8dfaeb63 | 1750 | |
7efc22ea JM |
1751 | TREE_OPERAND (u, 1) = break_out_target_exprs (TREE_OPERAND (u, 1)); |
1752 | ||
8dfaeb63 MM |
1753 | /* Replace the old expression with the new version. */ |
1754 | *tp = u; | |
1755 | /* We don't have to go below this point; the recursive call to | |
1756 | break_out_target_exprs will have handled anything below this | |
1757 | point. */ | |
1758 | *walk_subtrees = 0; | |
1759 | return NULL_TREE; | |
73aad9b9 | 1760 | } |
73aad9b9 | 1761 | |
8dfaeb63 MM |
1762 | /* Make a copy of this node. */ |
1763 | return copy_tree_r (tp, walk_subtrees, NULL); | |
878cd289 | 1764 | } |
9f63daea | 1765 | |
8dfaeb63 MM |
1766 | /* Replace all remapped VAR_DECLs in T with their new equivalents. |
1767 | DATA is really a splay-tree mapping old variables to new | |
1768 | variables. */ | |
b3ab27f3 MM |
1769 | |
1770 | static tree | |
9f63daea | 1771 | bot_replace (tree* t, |
0cbd7506 MS |
1772 | int* walk_subtrees ATTRIBUTE_UNUSED , |
1773 | void* data) | |
b3ab27f3 | 1774 | { |
8dfaeb63 MM |
1775 | splay_tree target_remap = ((splay_tree) data); |
1776 | ||
b3ab27f3 MM |
1777 | if (TREE_CODE (*t) == VAR_DECL) |
1778 | { | |
1779 | splay_tree_node n = splay_tree_lookup (target_remap, | |
1780 | (splay_tree_key) *t); | |
1781 | if (n) | |
1782 | *t = (tree) n->value; | |
1783 | } | |
1784 | ||
1785 | return NULL_TREE; | |
1786 | } | |
9f63daea | 1787 | |
8dfaeb63 MM |
1788 | /* When we parse a default argument expression, we may create |
1789 | temporary variables via TARGET_EXPRs. When we actually use the | |
1790 | default-argument expression, we make a copy of the expression, but | |
1791 | we must replace the temporaries with appropriate local versions. */ | |
e92cc029 | 1792 | |
878cd289 | 1793 | tree |
b57b79f7 | 1794 | break_out_target_exprs (tree t) |
878cd289 | 1795 | { |
8dfaeb63 MM |
1796 | static int target_remap_count; |
1797 | static splay_tree target_remap; | |
1798 | ||
b3ab27f3 | 1799 | if (!target_remap_count++) |
9f63daea EC |
1800 | target_remap = splay_tree_new (splay_tree_compare_pointers, |
1801 | /*splay_tree_delete_key_fn=*/NULL, | |
b3ab27f3 | 1802 | /*splay_tree_delete_value_fn=*/NULL); |
14588106 RG |
1803 | cp_walk_tree (&t, bot_manip, target_remap, NULL); |
1804 | cp_walk_tree (&t, bot_replace, target_remap, NULL); | |
b3ab27f3 MM |
1805 | |
1806 | if (!--target_remap_count) | |
1807 | { | |
1808 | splay_tree_delete (target_remap); | |
1809 | target_remap = NULL; | |
1810 | } | |
1811 | ||
1812 | return t; | |
878cd289 | 1813 | } |
f30432d7 | 1814 | |
8e1daa34 NS |
1815 | /* Similar to `build_nt', but for template definitions of dependent |
1816 | expressions */ | |
5566b478 MS |
1817 | |
1818 | tree | |
e34d07f2 | 1819 | build_min_nt (enum tree_code code, ...) |
5566b478 | 1820 | { |
926ce8bd KH |
1821 | tree t; |
1822 | int length; | |
1823 | int i; | |
e34d07f2 | 1824 | va_list p; |
5566b478 | 1825 | |
5039610b SL |
1826 | gcc_assert (TREE_CODE_CLASS (code) != tcc_vl_exp); |
1827 | ||
e34d07f2 | 1828 | va_start (p, code); |
5566b478 | 1829 | |
5566b478 | 1830 | t = make_node (code); |
8d5e6e25 | 1831 | length = TREE_CODE_LENGTH (code); |
5566b478 MS |
1832 | |
1833 | for (i = 0; i < length; i++) | |
1834 | { | |
1835 | tree x = va_arg (p, tree); | |
2a1e9fdd | 1836 | TREE_OPERAND (t, i) = x; |
5566b478 MS |
1837 | } |
1838 | ||
e34d07f2 | 1839 | va_end (p); |
5566b478 MS |
1840 | return t; |
1841 | } | |
1842 | ||
5039610b | 1843 | |
8e1daa34 | 1844 | /* Similar to `build', but for template definitions. */ |
5566b478 MS |
1845 | |
1846 | tree | |
e34d07f2 | 1847 | build_min (enum tree_code code, tree tt, ...) |
5566b478 | 1848 | { |
926ce8bd KH |
1849 | tree t; |
1850 | int length; | |
1851 | int i; | |
e34d07f2 | 1852 | va_list p; |
5566b478 | 1853 | |
5039610b SL |
1854 | gcc_assert (TREE_CODE_CLASS (code) != tcc_vl_exp); |
1855 | ||
e34d07f2 | 1856 | va_start (p, tt); |
5566b478 | 1857 | |
5566b478 | 1858 | t = make_node (code); |
8d5e6e25 | 1859 | length = TREE_CODE_LENGTH (code); |
2a1e9fdd | 1860 | TREE_TYPE (t) = tt; |
5566b478 MS |
1861 | |
1862 | for (i = 0; i < length; i++) | |
1863 | { | |
1864 | tree x = va_arg (p, tree); | |
2a1e9fdd | 1865 | TREE_OPERAND (t, i) = x; |
4f976745 | 1866 | if (x && !TYPE_P (x) && TREE_SIDE_EFFECTS (x)) |
8e1daa34 | 1867 | TREE_SIDE_EFFECTS (t) = 1; |
5566b478 MS |
1868 | } |
1869 | ||
e34d07f2 | 1870 | va_end (p); |
5566b478 MS |
1871 | return t; |
1872 | } | |
1873 | ||
8e1daa34 NS |
1874 | /* Similar to `build', but for template definitions of non-dependent |
1875 | expressions. NON_DEP is the non-dependent expression that has been | |
1876 | built. */ | |
1877 | ||
1878 | tree | |
1879 | build_min_non_dep (enum tree_code code, tree non_dep, ...) | |
1880 | { | |
926ce8bd KH |
1881 | tree t; |
1882 | int length; | |
1883 | int i; | |
8e1daa34 NS |
1884 | va_list p; |
1885 | ||
5039610b SL |
1886 | gcc_assert (TREE_CODE_CLASS (code) != tcc_vl_exp); |
1887 | ||
8e1daa34 NS |
1888 | va_start (p, non_dep); |
1889 | ||
1890 | t = make_node (code); | |
1891 | length = TREE_CODE_LENGTH (code); | |
1892 | TREE_TYPE (t) = TREE_TYPE (non_dep); | |
8e1daa34 NS |
1893 | TREE_SIDE_EFFECTS (t) = TREE_SIDE_EFFECTS (non_dep); |
1894 | ||
1895 | for (i = 0; i < length; i++) | |
1896 | { | |
1897 | tree x = va_arg (p, tree); | |
1898 | TREE_OPERAND (t, i) = x; | |
1899 | } | |
1900 | ||
1901 | if (code == COMPOUND_EXPR && TREE_CODE (non_dep) != COMPOUND_EXPR) | |
1902 | /* This should not be considered a COMPOUND_EXPR, because it | |
04c06002 | 1903 | resolves to an overload. */ |
8e1daa34 | 1904 | COMPOUND_EXPR_OVERLOADED (t) = 1; |
9f63daea | 1905 | |
8e1daa34 NS |
1906 | va_end (p); |
1907 | return t; | |
1908 | } | |
1909 | ||
3fcb9d1b NF |
1910 | /* Similar to `build_nt_call_vec', but for template definitions of |
1911 | non-dependent expressions. NON_DEP is the non-dependent expression | |
1912 | that has been built. */ | |
5039610b SL |
1913 | |
1914 | tree | |
c166b898 | 1915 | build_min_non_dep_call_vec (tree non_dep, tree fn, VEC(tree,gc) *argvec) |
5039610b | 1916 | { |
c166b898 | 1917 | tree t = build_nt_call_vec (fn, argvec); |
5039610b SL |
1918 | TREE_TYPE (t) = TREE_TYPE (non_dep); |
1919 | TREE_SIDE_EFFECTS (t) = TREE_SIDE_EFFECTS (non_dep); | |
1920 | return t; | |
1921 | } | |
1922 | ||
5566b478 | 1923 | tree |
b57b79f7 | 1924 | get_type_decl (tree t) |
5566b478 | 1925 | { |
5566b478 MS |
1926 | if (TREE_CODE (t) == TYPE_DECL) |
1927 | return t; | |
2f939d94 | 1928 | if (TYPE_P (t)) |
5566b478 | 1929 | return TYPE_STUB_DECL (t); |
315fb5db NS |
1930 | gcc_assert (t == error_mark_node); |
1931 | return t; | |
5566b478 MS |
1932 | } |
1933 | ||
700466c2 JM |
1934 | /* Returns the namespace that contains DECL, whether directly or |
1935 | indirectly. */ | |
1936 | ||
1937 | tree | |
b57b79f7 | 1938 | decl_namespace_context (tree decl) |
700466c2 JM |
1939 | { |
1940 | while (1) | |
1941 | { | |
1942 | if (TREE_CODE (decl) == NAMESPACE_DECL) | |
1943 | return decl; | |
1944 | else if (TYPE_P (decl)) | |
1945 | decl = CP_DECL_CONTEXT (TYPE_MAIN_DECL (decl)); | |
1946 | else | |
1947 | decl = CP_DECL_CONTEXT (decl); | |
1948 | } | |
1949 | } | |
1950 | ||
b9e75696 JM |
1951 | /* Returns true if decl is within an anonymous namespace, however deeply |
1952 | nested, or false otherwise. */ | |
1953 | ||
1954 | bool | |
58f9752a | 1955 | decl_anon_ns_mem_p (const_tree decl) |
b9e75696 JM |
1956 | { |
1957 | while (1) | |
1958 | { | |
653109bd | 1959 | if (decl == NULL_TREE || decl == error_mark_node) |
b9e75696 JM |
1960 | return false; |
1961 | if (TREE_CODE (decl) == NAMESPACE_DECL | |
1962 | && DECL_NAME (decl) == NULL_TREE) | |
1963 | return true; | |
1964 | /* Classes and namespaces inside anonymous namespaces have | |
1965 | TREE_PUBLIC == 0, so we can shortcut the search. */ | |
1966 | else if (TYPE_P (decl)) | |
1967 | return (TREE_PUBLIC (TYPE_NAME (decl)) == 0); | |
1968 | else if (TREE_CODE (decl) == NAMESPACE_DECL) | |
1969 | return (TREE_PUBLIC (decl) == 0); | |
1970 | else | |
1971 | decl = DECL_CONTEXT (decl); | |
1972 | } | |
1973 | } | |
1974 | ||
67d743fe | 1975 | /* Return truthvalue of whether T1 is the same tree structure as T2. |
c8a209ca | 1976 | Return 1 if they are the same. Return 0 if they are different. */ |
67d743fe | 1977 | |
c8a209ca | 1978 | bool |
b57b79f7 | 1979 | cp_tree_equal (tree t1, tree t2) |
67d743fe | 1980 | { |
926ce8bd | 1981 | enum tree_code code1, code2; |
67d743fe MS |
1982 | |
1983 | if (t1 == t2) | |
c8a209ca NS |
1984 | return true; |
1985 | if (!t1 || !t2) | |
1986 | return false; | |
1987 | ||
1988 | for (code1 = TREE_CODE (t1); | |
1a87cf0c | 1989 | CONVERT_EXPR_CODE_P (code1) |
c8a209ca NS |
1990 | || code1 == NON_LVALUE_EXPR; |
1991 | code1 = TREE_CODE (t1)) | |
1992 | t1 = TREE_OPERAND (t1, 0); | |
1993 | for (code2 = TREE_CODE (t2); | |
1a87cf0c | 1994 | CONVERT_EXPR_CODE_P (code2) |
c8a209ca NS |
1995 | || code1 == NON_LVALUE_EXPR; |
1996 | code2 = TREE_CODE (t2)) | |
1997 | t2 = TREE_OPERAND (t2, 0); | |
1998 | ||
1999 | /* They might have become equal now. */ | |
2000 | if (t1 == t2) | |
2001 | return true; | |
9f63daea | 2002 | |
67d743fe | 2003 | if (code1 != code2) |
c8a209ca | 2004 | return false; |
67d743fe MS |
2005 | |
2006 | switch (code1) | |
2007 | { | |
2008 | case INTEGER_CST: | |
2009 | return TREE_INT_CST_LOW (t1) == TREE_INT_CST_LOW (t2) | |
2010 | && TREE_INT_CST_HIGH (t1) == TREE_INT_CST_HIGH (t2); | |
2011 | ||
2012 | case REAL_CST: | |
2013 | return REAL_VALUES_EQUAL (TREE_REAL_CST (t1), TREE_REAL_CST (t2)); | |
2014 | ||
2015 | case STRING_CST: | |
2016 | return TREE_STRING_LENGTH (t1) == TREE_STRING_LENGTH (t2) | |
da61dec9 | 2017 | && !memcmp (TREE_STRING_POINTER (t1), TREE_STRING_POINTER (t2), |
c8a209ca | 2018 | TREE_STRING_LENGTH (t1)); |
67d743fe | 2019 | |
d05739f8 JM |
2020 | case FIXED_CST: |
2021 | return FIXED_VALUES_IDENTICAL (TREE_FIXED_CST (t1), | |
2022 | TREE_FIXED_CST (t2)); | |
2023 | ||
2a2193e0 SM |
2024 | case COMPLEX_CST: |
2025 | return cp_tree_equal (TREE_REALPART (t1), TREE_REALPART (t2)) | |
2026 | && cp_tree_equal (TREE_IMAGPART (t1), TREE_IMAGPART (t2)); | |
2027 | ||
67d743fe | 2028 | case CONSTRUCTOR: |
7dd4bdf5 MM |
2029 | /* We need to do this when determining whether or not two |
2030 | non-type pointer to member function template arguments | |
2031 | are the same. */ | |
31d06664 JM |
2032 | if (!same_type_p (TREE_TYPE (t1), TREE_TYPE (t2)) |
2033 | || CONSTRUCTOR_NELTS (t1) != CONSTRUCTOR_NELTS (t2)) | |
c8a209ca | 2034 | return false; |
31d06664 JM |
2035 | { |
2036 | tree field, value; | |
2037 | unsigned int i; | |
2038 | FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (t1), i, field, value) | |
2039 | { | |
2040 | constructor_elt *elt2 = CONSTRUCTOR_ELT (t2, i); | |
2041 | if (!cp_tree_equal (field, elt2->index) | |
2042 | || !cp_tree_equal (value, elt2->value)) | |
2043 | return false; | |
2044 | } | |
2045 | } | |
2046 | return true; | |
7dd4bdf5 MM |
2047 | |
2048 | case TREE_LIST: | |
c8a209ca NS |
2049 | if (!cp_tree_equal (TREE_PURPOSE (t1), TREE_PURPOSE (t2))) |
2050 | return false; | |
2051 | if (!cp_tree_equal (TREE_VALUE (t1), TREE_VALUE (t2))) | |
2052 | return false; | |
7dd4bdf5 | 2053 | return cp_tree_equal (TREE_CHAIN (t1), TREE_CHAIN (t2)); |
67d743fe MS |
2054 | |
2055 | case SAVE_EXPR: | |
2056 | return cp_tree_equal (TREE_OPERAND (t1, 0), TREE_OPERAND (t2, 0)); | |
2057 | ||
2058 | case CALL_EXPR: | |
5039610b SL |
2059 | { |
2060 | tree arg1, arg2; | |
2061 | call_expr_arg_iterator iter1, iter2; | |
2062 | if (!cp_tree_equal (CALL_EXPR_FN (t1), CALL_EXPR_FN (t2))) | |
2063 | return false; | |
2064 | for (arg1 = first_call_expr_arg (t1, &iter1), | |
2065 | arg2 = first_call_expr_arg (t2, &iter2); | |
2066 | arg1 && arg2; | |
2067 | arg1 = next_call_expr_arg (&iter1), | |
2068 | arg2 = next_call_expr_arg (&iter2)) | |
2069 | if (!cp_tree_equal (arg1, arg2)) | |
2070 | return false; | |
96b4a0b5 JM |
2071 | if (arg1 || arg2) |
2072 | return false; | |
2073 | return true; | |
5039610b | 2074 | } |
67d743fe | 2075 | |
c8a209ca NS |
2076 | case TARGET_EXPR: |
2077 | { | |
2078 | tree o1 = TREE_OPERAND (t1, 0); | |
2079 | tree o2 = TREE_OPERAND (t2, 0); | |
9f63daea | 2080 | |
c8a209ca NS |
2081 | /* Special case: if either target is an unallocated VAR_DECL, |
2082 | it means that it's going to be unified with whatever the | |
2083 | TARGET_EXPR is really supposed to initialize, so treat it | |
2084 | as being equivalent to anything. */ | |
2085 | if (TREE_CODE (o1) == VAR_DECL && DECL_NAME (o1) == NULL_TREE | |
2086 | && !DECL_RTL_SET_P (o1)) | |
2087 | /*Nop*/; | |
2088 | else if (TREE_CODE (o2) == VAR_DECL && DECL_NAME (o2) == NULL_TREE | |
2089 | && !DECL_RTL_SET_P (o2)) | |
2090 | /*Nop*/; | |
2091 | else if (!cp_tree_equal (o1, o2)) | |
2092 | return false; | |
9f63daea | 2093 | |
c8a209ca NS |
2094 | return cp_tree_equal (TREE_OPERAND (t1, 1), TREE_OPERAND (t2, 1)); |
2095 | } | |
9f63daea | 2096 | |
67d743fe | 2097 | case WITH_CLEANUP_EXPR: |
c8a209ca NS |
2098 | if (!cp_tree_equal (TREE_OPERAND (t1, 0), TREE_OPERAND (t2, 0))) |
2099 | return false; | |
6ad7895a | 2100 | return cp_tree_equal (TREE_OPERAND (t1, 1), TREE_OPERAND (t1, 1)); |
67d743fe MS |
2101 | |
2102 | case COMPONENT_REF: | |
c8a209ca NS |
2103 | if (TREE_OPERAND (t1, 1) != TREE_OPERAND (t2, 1)) |
2104 | return false; | |
2105 | return cp_tree_equal (TREE_OPERAND (t1, 0), TREE_OPERAND (t2, 0)); | |
67d743fe | 2106 | |
67d743fe | 2107 | case PARM_DECL: |
a77f94e2 JM |
2108 | /* For comparing uses of parameters in late-specified return types |
2109 | with an out-of-class definition of the function. */ | |
448545cb | 2110 | if (same_type_p (TREE_TYPE (t1), TREE_TYPE (t2)) |
ad909c97 | 2111 | && DECL_PARM_INDEX (t1) == DECL_PARM_INDEX (t2)) |
a77f94e2 JM |
2112 | return true; |
2113 | else | |
2114 | return false; | |
2115 | ||
2116 | case VAR_DECL: | |
67d743fe MS |
2117 | case CONST_DECL: |
2118 | case FUNCTION_DECL: | |
c8a209ca NS |
2119 | case TEMPLATE_DECL: |
2120 | case IDENTIFIER_NODE: | |
47c0c7d7 | 2121 | case SSA_NAME: |
c8a209ca | 2122 | return false; |
67d743fe | 2123 | |
17a27b4f MM |
2124 | case BASELINK: |
2125 | return (BASELINK_BINFO (t1) == BASELINK_BINFO (t2) | |
2126 | && BASELINK_ACCESS_BINFO (t1) == BASELINK_ACCESS_BINFO (t2) | |
2127 | && cp_tree_equal (BASELINK_FUNCTIONS (t1), | |
2128 | BASELINK_FUNCTIONS (t2))); | |
2129 | ||
f84b4be9 | 2130 | case TEMPLATE_PARM_INDEX: |
31758337 NS |
2131 | return (TEMPLATE_PARM_IDX (t1) == TEMPLATE_PARM_IDX (t2) |
2132 | && TEMPLATE_PARM_LEVEL (t1) == TEMPLATE_PARM_LEVEL (t2) | |
9524f710 LE |
2133 | && (TEMPLATE_PARM_PARAMETER_PACK (t1) |
2134 | == TEMPLATE_PARM_PARAMETER_PACK (t2)) | |
31758337 NS |
2135 | && same_type_p (TREE_TYPE (TEMPLATE_PARM_DECL (t1)), |
2136 | TREE_TYPE (TEMPLATE_PARM_DECL (t2)))); | |
67d743fe | 2137 | |
bf12d54d NS |
2138 | case TEMPLATE_ID_EXPR: |
2139 | { | |
2140 | unsigned ix; | |
2141 | tree vec1, vec2; | |
9f63daea | 2142 | |
bf12d54d NS |
2143 | if (!cp_tree_equal (TREE_OPERAND (t1, 0), TREE_OPERAND (t2, 0))) |
2144 | return false; | |
2145 | vec1 = TREE_OPERAND (t1, 1); | |
2146 | vec2 = TREE_OPERAND (t2, 1); | |
2147 | ||
2148 | if (!vec1 || !vec2) | |
2149 | return !vec1 && !vec2; | |
9f63daea | 2150 | |
bf12d54d NS |
2151 | if (TREE_VEC_LENGTH (vec1) != TREE_VEC_LENGTH (vec2)) |
2152 | return false; | |
2153 | ||
2154 | for (ix = TREE_VEC_LENGTH (vec1); ix--;) | |
2155 | if (!cp_tree_equal (TREE_VEC_ELT (vec1, ix), | |
2156 | TREE_VEC_ELT (vec2, ix))) | |
2157 | return false; | |
9f63daea | 2158 | |
bf12d54d NS |
2159 | return true; |
2160 | } | |
9f63daea | 2161 | |
67d743fe | 2162 | case SIZEOF_EXPR: |
abff8e06 | 2163 | case ALIGNOF_EXPR: |
c8a209ca NS |
2164 | { |
2165 | tree o1 = TREE_OPERAND (t1, 0); | |
2166 | tree o2 = TREE_OPERAND (t2, 0); | |
9f63daea | 2167 | |
c8a209ca NS |
2168 | if (TREE_CODE (o1) != TREE_CODE (o2)) |
2169 | return false; | |
2170 | if (TYPE_P (o1)) | |
2171 | return same_type_p (o1, o2); | |
2172 | else | |
2173 | return cp_tree_equal (o1, o2); | |
2174 | } | |
9f63daea | 2175 | |
6f9f76e3 SM |
2176 | case MODOP_EXPR: |
2177 | { | |
2178 | tree t1_op1, t2_op1; | |
2179 | ||
2180 | if (!cp_tree_equal (TREE_OPERAND (t1, 0), TREE_OPERAND (t2, 0))) | |
2181 | return false; | |
2182 | ||
2183 | t1_op1 = TREE_OPERAND (t1, 1); | |
2184 | t2_op1 = TREE_OPERAND (t2, 1); | |
2185 | if (TREE_CODE (t1_op1) != TREE_CODE (t2_op1)) | |
2186 | return false; | |
2187 | ||
2188 | return cp_tree_equal (TREE_OPERAND (t1, 2), TREE_OPERAND (t2, 2)); | |
2189 | } | |
2190 | ||
61a127b3 MM |
2191 | case PTRMEM_CST: |
2192 | /* Two pointer-to-members are the same if they point to the same | |
2193 | field or function in the same class. */ | |
c8a209ca NS |
2194 | if (PTRMEM_CST_MEMBER (t1) != PTRMEM_CST_MEMBER (t2)) |
2195 | return false; | |
2196 | ||
2197 | return same_type_p (PTRMEM_CST_CLASS (t1), PTRMEM_CST_CLASS (t2)); | |
61a127b3 | 2198 | |
943e3ede MM |
2199 | case OVERLOAD: |
2200 | if (OVL_FUNCTION (t1) != OVL_FUNCTION (t2)) | |
2201 | return false; | |
2202 | return cp_tree_equal (OVL_CHAIN (t1), OVL_CHAIN (t2)); | |
2203 | ||
ea798d0f PC |
2204 | case TRAIT_EXPR: |
2205 | if (TRAIT_EXPR_KIND (t1) != TRAIT_EXPR_KIND (t2)) | |
2206 | return false; | |
2207 | return same_type_p (TRAIT_EXPR_TYPE1 (t1), TRAIT_EXPR_TYPE1 (t2)) | |
2208 | && same_type_p (TRAIT_EXPR_TYPE2 (t1), TRAIT_EXPR_TYPE2 (t2)); | |
2209 | ||
ab73eba8 JM |
2210 | case CAST_EXPR: |
2211 | case STATIC_CAST_EXPR: | |
2212 | case REINTERPRET_CAST_EXPR: | |
2213 | case CONST_CAST_EXPR: | |
2214 | case DYNAMIC_CAST_EXPR: | |
2215 | case NEW_EXPR: | |
2216 | if (!same_type_p (TREE_TYPE (t1), TREE_TYPE (t2))) | |
2217 | return false; | |
2218 | /* Now compare operands as usual. */ | |
2219 | break; | |
2220 | ||
7f85441b KG |
2221 | default: |
2222 | break; | |
67d743fe MS |
2223 | } |
2224 | ||
2225 | switch (TREE_CODE_CLASS (code1)) | |
2226 | { | |
6615c446 JO |
2227 | case tcc_unary: |
2228 | case tcc_binary: | |
2229 | case tcc_comparison: | |
2230 | case tcc_expression: | |
5039610b | 2231 | case tcc_vl_exp: |
6615c446 JO |
2232 | case tcc_reference: |
2233 | case tcc_statement: | |
aa1826e2 | 2234 | { |
5039610b SL |
2235 | int i, n; |
2236 | ||
2237 | n = TREE_OPERAND_LENGTH (t1); | |
2238 | if (TREE_CODE_CLASS (code1) == tcc_vl_exp | |
2239 | && n != TREE_OPERAND_LENGTH (t2)) | |
2240 | return false; | |
9f63daea | 2241 | |
5039610b | 2242 | for (i = 0; i < n; ++i) |
c8a209ca NS |
2243 | if (!cp_tree_equal (TREE_OPERAND (t1, i), TREE_OPERAND (t2, i))) |
2244 | return false; | |
9f63daea | 2245 | |
c8a209ca | 2246 | return true; |
aa1826e2 | 2247 | } |
9f63daea | 2248 | |
6615c446 | 2249 | case tcc_type: |
c8a209ca | 2250 | return same_type_p (t1, t2); |
6615c446 JO |
2251 | default: |
2252 | gcc_unreachable (); | |
67d743fe | 2253 | } |
6615c446 | 2254 | /* We can get here with --disable-checking. */ |
c8a209ca | 2255 | return false; |
67d743fe | 2256 | } |
73aad9b9 | 2257 | |
d11ad92e MS |
2258 | /* The type of ARG when used as an lvalue. */ |
2259 | ||
2260 | tree | |
b57b79f7 | 2261 | lvalue_type (tree arg) |
d11ad92e | 2262 | { |
2c73f9f5 | 2263 | tree type = TREE_TYPE (arg); |
8cd4c175 | 2264 | return type; |
d11ad92e MS |
2265 | } |
2266 | ||
2267 | /* The type of ARG for printing error messages; denote lvalues with | |
2268 | reference types. */ | |
2269 | ||
2270 | tree | |
b57b79f7 | 2271 | error_type (tree arg) |
d11ad92e MS |
2272 | { |
2273 | tree type = TREE_TYPE (arg); | |
9f63daea | 2274 | |
d11ad92e MS |
2275 | if (TREE_CODE (type) == ARRAY_TYPE) |
2276 | ; | |
08476342 NS |
2277 | else if (TREE_CODE (type) == ERROR_MARK) |
2278 | ; | |
d11ad92e MS |
2279 | else if (real_lvalue_p (arg)) |
2280 | type = build_reference_type (lvalue_type (arg)); | |
9e1e64ec | 2281 | else if (MAYBE_CLASS_TYPE_P (type)) |
d11ad92e MS |
2282 | type = lvalue_type (arg); |
2283 | ||
2284 | return type; | |
2285 | } | |
eb66be0e MS |
2286 | |
2287 | /* Does FUNCTION use a variable-length argument list? */ | |
2288 | ||
2289 | int | |
58f9752a | 2290 | varargs_function_p (const_tree function) |
eb66be0e | 2291 | { |
f38958e8 | 2292 | return stdarg_p (TREE_TYPE (function)); |
eb66be0e | 2293 | } |
f94ae2f5 JM |
2294 | |
2295 | /* Returns 1 if decl is a member of a class. */ | |
2296 | ||
2297 | int | |
58f9752a | 2298 | member_p (const_tree decl) |
f94ae2f5 | 2299 | { |
58f9752a | 2300 | const_tree const ctx = DECL_CONTEXT (decl); |
2f939d94 | 2301 | return (ctx && TYPE_P (ctx)); |
f94ae2f5 | 2302 | } |
51924768 JM |
2303 | |
2304 | /* Create a placeholder for member access where we don't actually have an | |
2305 | object that the access is against. */ | |
2306 | ||
2307 | tree | |
b57b79f7 | 2308 | build_dummy_object (tree type) |
51924768 | 2309 | { |
44689c12 | 2310 | tree decl = build1 (NOP_EXPR, build_pointer_type (type), void_zero_node); |
dd865ef6 | 2311 | return cp_build_indirect_ref (decl, RO_NULL, tf_warning_or_error); |
51924768 JM |
2312 | } |
2313 | ||
2314 | /* We've gotten a reference to a member of TYPE. Return *this if appropriate, | |
2315 | or a dummy object otherwise. If BINFOP is non-0, it is filled with the | |
2316 | binfo path from current_class_type to TYPE, or 0. */ | |
2317 | ||
2318 | tree | |
b57b79f7 | 2319 | maybe_dummy_object (tree type, tree* binfop) |
51924768 JM |
2320 | { |
2321 | tree decl, context; | |
2db1ab2d | 2322 | tree binfo; |
a6846853 | 2323 | tree current = current_nonlambda_class_type (); |
9f63daea | 2324 | |
a6846853 JM |
2325 | if (current |
2326 | && (binfo = lookup_base (current, type, ba_any, NULL))) | |
2327 | context = current; | |
51924768 JM |
2328 | else |
2329 | { | |
2330 | /* Reference from a nested class member function. */ | |
2331 | context = type; | |
2db1ab2d | 2332 | binfo = TYPE_BINFO (type); |
51924768 JM |
2333 | } |
2334 | ||
2db1ab2d NS |
2335 | if (binfop) |
2336 | *binfop = binfo; | |
9f63daea | 2337 | |
a29e1034 | 2338 | if (current_class_ref && context == current_class_type |
3ebf5204 | 2339 | /* Kludge: Make sure that current_class_type is actually |
0cbd7506 MS |
2340 | correct. It might not be if we're in the middle of |
2341 | tsubst_default_argument. */ | |
a29e1034 JM |
2342 | && same_type_p (TYPE_MAIN_VARIANT (TREE_TYPE (current_class_ref)), |
2343 | current_class_type)) | |
51924768 | 2344 | decl = current_class_ref; |
a6846853 JM |
2345 | else if (current != current_class_type |
2346 | && context == nonlambda_method_basetype ()) | |
2347 | /* In a lambda, need to go through 'this' capture. */ | |
2348 | decl = (cp_build_indirect_ref | |
2349 | ((lambda_expr_this_capture | |
2350 | (CLASSTYPE_LAMBDA_EXPR (current_class_type))), | |
2351 | RO_NULL, tf_warning_or_error)); | |
51924768 JM |
2352 | else |
2353 | decl = build_dummy_object (context); | |
2354 | ||
2355 | return decl; | |
2356 | } | |
2357 | ||
2358 | /* Returns 1 if OB is a placeholder object, or a pointer to one. */ | |
2359 | ||
2360 | int | |
58f9752a | 2361 | is_dummy_object (const_tree ob) |
51924768 JM |
2362 | { |
2363 | if (TREE_CODE (ob) == INDIRECT_REF) | |
2364 | ob = TREE_OPERAND (ob, 0); | |
2365 | return (TREE_CODE (ob) == NOP_EXPR | |
44689c12 | 2366 | && TREE_OPERAND (ob, 0) == void_zero_node); |
51924768 | 2367 | } |
5524676d | 2368 | |
c32097d8 JM |
2369 | /* Returns 1 iff type T is something we want to treat as a scalar type for |
2370 | the purpose of deciding whether it is trivial/POD/standard-layout. */ | |
2371 | ||
2372 | static bool | |
2373 | scalarish_type_p (const_tree t) | |
2374 | { | |
2375 | if (t == error_mark_node) | |
2376 | return 1; | |
2377 | ||
2378 | return (SCALAR_TYPE_P (t) | |
2379 | || TREE_CODE (t) == VECTOR_TYPE); | |
2380 | } | |
2381 | ||
2382 | /* Returns true iff T requires non-trivial default initialization. */ | |
2383 | ||
2384 | bool | |
2385 | type_has_nontrivial_default_init (const_tree t) | |
2386 | { | |
2387 | t = strip_array_types (CONST_CAST_TREE (t)); | |
2388 | ||
2389 | if (CLASS_TYPE_P (t)) | |
2390 | return TYPE_HAS_COMPLEX_DFLT (t); | |
2391 | else | |
2392 | return 0; | |
2393 | } | |
2394 | ||
d758e847 JM |
2395 | /* Returns true iff copying an object of type T (including via move |
2396 | constructor) is non-trivial. That is, T has no non-trivial copy | |
2397 | constructors and no non-trivial move constructors. */ | |
c32097d8 JM |
2398 | |
2399 | bool | |
2400 | type_has_nontrivial_copy_init (const_tree t) | |
2401 | { | |
2402 | t = strip_array_types (CONST_CAST_TREE (t)); | |
2403 | ||
2404 | if (CLASS_TYPE_P (t)) | |
d758e847 JM |
2405 | { |
2406 | gcc_assert (COMPLETE_TYPE_P (t)); | |
2407 | return ((TYPE_HAS_COPY_CTOR (t) | |
2408 | && TYPE_HAS_COMPLEX_COPY_CTOR (t)) | |
2409 | || TYPE_HAS_COMPLEX_MOVE_CTOR (t)); | |
2410 | } | |
c32097d8 JM |
2411 | else |
2412 | return 0; | |
2413 | } | |
2414 | ||
46408846 JM |
2415 | /* Returns 1 iff type T is a trivially copyable type, as defined in |
2416 | [basic.types] and [class]. */ | |
c32097d8 JM |
2417 | |
2418 | bool | |
46408846 | 2419 | trivially_copyable_p (const_tree t) |
c32097d8 JM |
2420 | { |
2421 | t = strip_array_types (CONST_CAST_TREE (t)); | |
2422 | ||
2423 | if (CLASS_TYPE_P (t)) | |
d758e847 JM |
2424 | return ((!TYPE_HAS_COPY_CTOR (t) |
2425 | || !TYPE_HAS_COMPLEX_COPY_CTOR (t)) | |
2426 | && !TYPE_HAS_COMPLEX_MOVE_CTOR (t) | |
2427 | && (!TYPE_HAS_COPY_ASSIGN (t) | |
2428 | || !TYPE_HAS_COMPLEX_COPY_ASSIGN (t)) | |
2429 | && !TYPE_HAS_COMPLEX_MOVE_ASSIGN (t) | |
334738b4 | 2430 | && TYPE_HAS_TRIVIAL_DESTRUCTOR (t)); |
c32097d8 JM |
2431 | else |
2432 | return scalarish_type_p (t); | |
2433 | } | |
2434 | ||
46408846 JM |
2435 | /* Returns 1 iff type T is a trivial type, as defined in [basic.types] and |
2436 | [class]. */ | |
2437 | ||
2438 | bool | |
2439 | trivial_type_p (const_tree t) | |
2440 | { | |
2441 | t = strip_array_types (CONST_CAST_TREE (t)); | |
2442 | ||
2443 | if (CLASS_TYPE_P (t)) | |
2444 | return (TYPE_HAS_TRIVIAL_DFLT (t) | |
2445 | && trivially_copyable_p (t)); | |
2446 | else | |
2447 | return scalarish_type_p (t); | |
2448 | } | |
2449 | ||
5524676d JM |
2450 | /* Returns 1 iff type T is a POD type, as defined in [basic.types]. */ |
2451 | ||
c32097d8 | 2452 | bool |
58f9752a | 2453 | pod_type_p (const_tree t) |
5524676d | 2454 | { |
4e9b57fa | 2455 | /* This CONST_CAST is okay because strip_array_types returns its |
75547801 | 2456 | argument unmodified and we assign it to a const_tree. */ |
b1d5455a | 2457 | t = strip_array_types (CONST_CAST_TREE(t)); |
5524676d | 2458 | |
cc72bbaa JM |
2459 | if (!CLASS_TYPE_P (t)) |
2460 | return scalarish_type_p (t); | |
2461 | else if (cxx_dialect > cxx98) | |
c32097d8 JM |
2462 | /* [class]/10: A POD struct is a class that is both a trivial class and a |
2463 | standard-layout class, and has no non-static data members of type | |
2464 | non-POD struct, non-POD union (or array of such types). | |
2465 | ||
2466 | We don't need to check individual members because if a member is | |
2467 | non-std-layout or non-trivial, the class will be too. */ | |
2468 | return (std_layout_type_p (t) && trivial_type_p (t)); | |
2469 | else | |
cc72bbaa JM |
2470 | /* The C++98 definition of POD is different. */ |
2471 | return !CLASSTYPE_NON_LAYOUT_POD_P (t); | |
c32097d8 JM |
2472 | } |
2473 | ||
2474 | /* Returns true iff T is POD for the purpose of layout, as defined in the | |
2475 | C++ ABI. */ | |
2476 | ||
2477 | bool | |
2478 | layout_pod_type_p (const_tree t) | |
2479 | { | |
2480 | t = strip_array_types (CONST_CAST_TREE (t)); | |
2481 | ||
2482 | if (CLASS_TYPE_P (t)) | |
2483 | return !CLASSTYPE_NON_LAYOUT_POD_P (t); | |
2484 | else | |
2485 | return scalarish_type_p (t); | |
2486 | } | |
2487 | ||
2488 | /* Returns true iff T is a standard-layout type, as defined in | |
2489 | [basic.types]. */ | |
2490 | ||
2491 | bool | |
2492 | std_layout_type_p (const_tree t) | |
2493 | { | |
2494 | t = strip_array_types (CONST_CAST_TREE (t)); | |
2495 | ||
2496 | if (CLASS_TYPE_P (t)) | |
2497 | return !CLASSTYPE_NON_STD_LAYOUT (t); | |
2498 | else | |
2499 | return scalarish_type_p (t); | |
5524676d | 2500 | } |
e5dc5fb2 | 2501 | |
39ef6592 LC |
2502 | /* Nonzero iff type T is a class template implicit specialization. */ |
2503 | ||
2504 | bool | |
ac7d7749 | 2505 | class_tmpl_impl_spec_p (const_tree t) |
39ef6592 LC |
2506 | { |
2507 | return CLASS_TYPE_P (t) && CLASSTYPE_TEMPLATE_INSTANTIATION (t); | |
2508 | } | |
2509 | ||
94e6e4c4 AO |
2510 | /* Returns 1 iff zero initialization of type T means actually storing |
2511 | zeros in it. */ | |
2512 | ||
2513 | int | |
58f9752a | 2514 | zero_init_p (const_tree t) |
94e6e4c4 | 2515 | { |
4e9b57fa | 2516 | /* This CONST_CAST is okay because strip_array_types returns its |
75547801 | 2517 | argument unmodified and we assign it to a const_tree. */ |
b1d5455a | 2518 | t = strip_array_types (CONST_CAST_TREE(t)); |
94e6e4c4 | 2519 | |
17bbb839 MM |
2520 | if (t == error_mark_node) |
2521 | return 1; | |
2522 | ||
94e6e4c4 AO |
2523 | /* NULL pointers to data members are initialized with -1. */ |
2524 | if (TYPE_PTRMEM_P (t)) | |
2525 | return 0; | |
2526 | ||
2527 | /* Classes that contain types that can't be zero-initialized, cannot | |
2528 | be zero-initialized themselves. */ | |
2529 | if (CLASS_TYPE_P (t) && CLASSTYPE_NON_ZERO_INIT_P (t)) | |
2530 | return 0; | |
2531 | ||
2532 | return 1; | |
2533 | } | |
2534 | ||
91d231cb | 2535 | /* Table of valid C++ attributes. */ |
349ae713 | 2536 | const struct attribute_spec cxx_attribute_table[] = |
e5dc5fb2 | 2537 | { |
91d231cb JM |
2538 | /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ |
2539 | { "java_interface", 0, 0, false, false, false, handle_java_interface_attribute }, | |
2540 | { "com_interface", 0, 0, false, false, false, handle_com_interface_attribute }, | |
2541 | { "init_priority", 1, 1, true, false, false, handle_init_priority_attribute }, | |
0cbd7506 | 2542 | { NULL, 0, 0, false, false, false, NULL } |
91d231cb JM |
2543 | }; |
2544 | ||
2545 | /* Handle a "java_interface" attribute; arguments as in | |
2546 | struct attribute_spec.handler. */ | |
2547 | static tree | |
9f63daea | 2548 | handle_java_interface_attribute (tree* node, |
0cbd7506 MS |
2549 | tree name, |
2550 | tree args ATTRIBUTE_UNUSED , | |
2551 | int flags, | |
2552 | bool* no_add_attrs) | |
91d231cb JM |
2553 | { |
2554 | if (DECL_P (*node) | |
2555 | || !CLASS_TYPE_P (*node) | |
2556 | || !TYPE_FOR_JAVA (*node)) | |
60c87482 | 2557 | { |
a82e1a7d | 2558 | error ("%qE attribute can only be applied to Java class definitions", |
4460cef2 | 2559 | name); |
91d231cb JM |
2560 | *no_add_attrs = true; |
2561 | return NULL_TREE; | |
60c87482 | 2562 | } |
91d231cb | 2563 | if (!(flags & (int) ATTR_FLAG_TYPE_IN_PLACE)) |
8dd16ecc | 2564 | *node = build_variant_type_copy (*node); |
91d231cb | 2565 | TYPE_JAVA_INTERFACE (*node) = 1; |
e5dc5fb2 | 2566 | |
91d231cb JM |
2567 | return NULL_TREE; |
2568 | } | |
2569 | ||
2570 | /* Handle a "com_interface" attribute; arguments as in | |
2571 | struct attribute_spec.handler. */ | |
2572 | static tree | |
9f63daea | 2573 | handle_com_interface_attribute (tree* node, |
0cbd7506 MS |
2574 | tree name, |
2575 | tree args ATTRIBUTE_UNUSED , | |
2576 | int flags ATTRIBUTE_UNUSED , | |
2577 | bool* no_add_attrs) | |
91d231cb JM |
2578 | { |
2579 | static int warned; | |
2580 | ||
2581 | *no_add_attrs = true; | |
2582 | ||
2583 | if (DECL_P (*node) | |
2584 | || !CLASS_TYPE_P (*node) | |
2585 | || *node != TYPE_MAIN_VARIANT (*node)) | |
e5dc5fb2 | 2586 | { |
5c498b10 DD |
2587 | warning (OPT_Wattributes, "%qE attribute can only be applied " |
2588 | "to class definitions", name); | |
91d231cb JM |
2589 | return NULL_TREE; |
2590 | } | |
e5dc5fb2 | 2591 | |
91d231cb | 2592 | if (!warned++) |
d4ee4d25 | 2593 | warning (0, "%qE is obsolete; g++ vtables are now COM-compatible by default", |
4460cef2 | 2594 | name); |
91d231cb JM |
2595 | |
2596 | return NULL_TREE; | |
2597 | } | |
2598 | ||
2599 | /* Handle an "init_priority" attribute; arguments as in | |
2600 | struct attribute_spec.handler. */ | |
2601 | static tree | |
9f63daea | 2602 | handle_init_priority_attribute (tree* node, |
0cbd7506 MS |
2603 | tree name, |
2604 | tree args, | |
2605 | int flags ATTRIBUTE_UNUSED , | |
2606 | bool* no_add_attrs) | |
91d231cb JM |
2607 | { |
2608 | tree initp_expr = TREE_VALUE (args); | |
2609 | tree decl = *node; | |
2610 | tree type = TREE_TYPE (decl); | |
2611 | int pri; | |
2612 | ||
2613 | STRIP_NOPS (initp_expr); | |
9f63daea | 2614 | |
91d231cb JM |
2615 | if (!initp_expr || TREE_CODE (initp_expr) != INTEGER_CST) |
2616 | { | |
2617 | error ("requested init_priority is not an integer constant"); | |
2618 | *no_add_attrs = true; | |
2619 | return NULL_TREE; | |
2620 | } | |
e5dc5fb2 | 2621 | |
91d231cb | 2622 | pri = TREE_INT_CST_LOW (initp_expr); |
9f63daea | 2623 | |
91d231cb JM |
2624 | type = strip_array_types (type); |
2625 | ||
2626 | if (decl == NULL_TREE | |
2627 | || TREE_CODE (decl) != VAR_DECL | |
2628 | || !TREE_STATIC (decl) | |
2629 | || DECL_EXTERNAL (decl) | |
2630 | || (TREE_CODE (type) != RECORD_TYPE | |
2631 | && TREE_CODE (type) != UNION_TYPE) | |
2632 | /* Static objects in functions are initialized the | |
2633 | first time control passes through that | |
2634 | function. This is not precise enough to pin down an | |
c6002625 | 2635 | init_priority value, so don't allow it. */ |
9f63daea | 2636 | || current_function_decl) |
91d231cb | 2637 | { |
a82e1a7d | 2638 | error ("can only use %qE attribute on file-scope definitions " |
0cbd7506 | 2639 | "of objects of class type", name); |
91d231cb JM |
2640 | *no_add_attrs = true; |
2641 | return NULL_TREE; | |
2642 | } | |
e5dc5fb2 | 2643 | |
91d231cb JM |
2644 | if (pri > MAX_INIT_PRIORITY || pri <= 0) |
2645 | { | |
2646 | error ("requested init_priority is out of range"); | |
2647 | *no_add_attrs = true; | |
2648 | return NULL_TREE; | |
2649 | } | |
e5dc5fb2 | 2650 | |
91d231cb JM |
2651 | /* Check for init_priorities that are reserved for |
2652 | language and runtime support implementations.*/ | |
2653 | if (pri <= MAX_RESERVED_INIT_PRIORITY) | |
2654 | { | |
9f63daea | 2655 | warning |
d4ee4d25 | 2656 | (0, "requested init_priority is reserved for internal use"); |
e5dc5fb2 JM |
2657 | } |
2658 | ||
91d231cb JM |
2659 | if (SUPPORTS_INIT_PRIORITY) |
2660 | { | |
820cc88f DB |
2661 | SET_DECL_INIT_PRIORITY (decl, pri); |
2662 | DECL_HAS_INIT_PRIORITY_P (decl) = 1; | |
91d231cb JM |
2663 | return NULL_TREE; |
2664 | } | |
2665 | else | |
2666 | { | |
a82e1a7d | 2667 | error ("%qE attribute is not supported on this platform", name); |
91d231cb JM |
2668 | *no_add_attrs = true; |
2669 | return NULL_TREE; | |
2670 | } | |
e5dc5fb2 | 2671 | } |
87533b37 MM |
2672 | |
2673 | /* Return a new PTRMEM_CST of the indicated TYPE. The MEMBER is the | |
2674 | thing pointed to by the constant. */ | |
2675 | ||
2676 | tree | |
b57b79f7 | 2677 | make_ptrmem_cst (tree type, tree member) |
87533b37 MM |
2678 | { |
2679 | tree ptrmem_cst = make_node (PTRMEM_CST); | |
87533b37 MM |
2680 | TREE_TYPE (ptrmem_cst) = type; |
2681 | PTRMEM_CST_MEMBER (ptrmem_cst) = member; | |
2682 | return ptrmem_cst; | |
2683 | } | |
2684 | ||
e9525111 | 2685 | /* Build a variant of TYPE that has the indicated ATTRIBUTES. May |
51035976 | 2686 | return an existing type if an appropriate type already exists. */ |
e9525111 MM |
2687 | |
2688 | tree | |
2689 | cp_build_type_attribute_variant (tree type, tree attributes) | |
2690 | { | |
2691 | tree new_type; | |
2692 | ||
2693 | new_type = build_type_attribute_variant (type, attributes); | |
3a55fb4c JM |
2694 | if (TREE_CODE (new_type) == FUNCTION_TYPE |
2695 | || TREE_CODE (new_type) == METHOD_TYPE) | |
e9525111 MM |
2696 | new_type = build_exception_variant (new_type, |
2697 | TYPE_RAISES_EXCEPTIONS (type)); | |
8e30dcf3 JM |
2698 | |
2699 | /* Making a new main variant of a class type is broken. */ | |
2700 | gcc_assert (!CLASS_TYPE_P (type) || new_type == type); | |
2701 | ||
e9525111 MM |
2702 | return new_type; |
2703 | } | |
2704 | ||
2dff8956 JJ |
2705 | /* Return TRUE if TYPE1 and TYPE2 are identical for type hashing purposes. |
2706 | Called only after doing all language independent checks. Only | |
2707 | to check TYPE_RAISES_EXCEPTIONS for FUNCTION_TYPE, the rest is already | |
2708 | compared in type_hash_eq. */ | |
2709 | ||
2710 | bool | |
2711 | cxx_type_hash_eq (const_tree typea, const_tree typeb) | |
2712 | { | |
2713 | gcc_assert (TREE_CODE (typea) == FUNCTION_TYPE); | |
2714 | ||
2715 | return comp_except_specs (TYPE_RAISES_EXCEPTIONS (typea), | |
3a55fb4c | 2716 | TYPE_RAISES_EXCEPTIONS (typeb), ce_exact); |
2dff8956 JJ |
2717 | } |
2718 | ||
25af8512 | 2719 | /* Apply FUNC to all language-specific sub-trees of TP in a pre-order |
350fae66 | 2720 | traversal. Called from walk_tree. */ |
25af8512 | 2721 | |
9f63daea | 2722 | tree |
350fae66 | 2723 | cp_walk_subtrees (tree *tp, int *walk_subtrees_p, walk_tree_fn func, |
0c58f841 | 2724 | void *data, struct pointer_set_t *pset) |
25af8512 AO |
2725 | { |
2726 | enum tree_code code = TREE_CODE (*tp); | |
2727 | tree result; | |
9f63daea | 2728 | |
25af8512 AO |
2729 | #define WALK_SUBTREE(NODE) \ |
2730 | do \ | |
2731 | { \ | |
14588106 | 2732 | result = cp_walk_tree (&(NODE), func, data, pset); \ |
6de9cd9a | 2733 | if (result) goto out; \ |
25af8512 AO |
2734 | } \ |
2735 | while (0) | |
2736 | ||
2737 | /* Not one of the easy cases. We must explicitly go through the | |
2738 | children. */ | |
6de9cd9a | 2739 | result = NULL_TREE; |
25af8512 AO |
2740 | switch (code) |
2741 | { | |
2742 | case DEFAULT_ARG: | |
2743 | case TEMPLATE_TEMPLATE_PARM: | |
2744 | case BOUND_TEMPLATE_TEMPLATE_PARM: | |
b8c6534b | 2745 | case UNBOUND_CLASS_TEMPLATE: |
25af8512 AO |
2746 | case TEMPLATE_PARM_INDEX: |
2747 | case TEMPLATE_TYPE_PARM: | |
2748 | case TYPENAME_TYPE: | |
2749 | case TYPEOF_TYPE: | |
da1d7781 | 2750 | /* None of these have subtrees other than those already walked |
0cbd7506 | 2751 | above. */ |
25af8512 AO |
2752 | *walk_subtrees_p = 0; |
2753 | break; | |
2754 | ||
5d80a306 DG |
2755 | case BASELINK: |
2756 | WALK_SUBTREE (BASELINK_FUNCTIONS (*tp)); | |
2757 | *walk_subtrees_p = 0; | |
2758 | break; | |
2759 | ||
25af8512 AO |
2760 | case PTRMEM_CST: |
2761 | WALK_SUBTREE (TREE_TYPE (*tp)); | |
2762 | *walk_subtrees_p = 0; | |
2763 | break; | |
2764 | ||
2765 | case TREE_LIST: | |
5dae1114 | 2766 | WALK_SUBTREE (TREE_PURPOSE (*tp)); |
25af8512 AO |
2767 | break; |
2768 | ||
2769 | case OVERLOAD: | |
2770 | WALK_SUBTREE (OVL_FUNCTION (*tp)); | |
2771 | WALK_SUBTREE (OVL_CHAIN (*tp)); | |
2772 | *walk_subtrees_p = 0; | |
4439d02f DG |
2773 | break; |
2774 | ||
2775 | case USING_DECL: | |
2776 | WALK_SUBTREE (DECL_NAME (*tp)); | |
2777 | WALK_SUBTREE (USING_DECL_SCOPE (*tp)); | |
2778 | WALK_SUBTREE (USING_DECL_DECLS (*tp)); | |
2779 | *walk_subtrees_p = 0; | |
25af8512 AO |
2780 | break; |
2781 | ||
2782 | case RECORD_TYPE: | |
2783 | if (TYPE_PTRMEMFUNC_P (*tp)) | |
2784 | WALK_SUBTREE (TYPE_PTRMEMFUNC_FN_TYPE (*tp)); | |
2785 | break; | |
2786 | ||
5d80a306 DG |
2787 | case TYPE_ARGUMENT_PACK: |
2788 | case NONTYPE_ARGUMENT_PACK: | |
2789 | { | |
2790 | tree args = ARGUMENT_PACK_ARGS (*tp); | |
2791 | int i, len = TREE_VEC_LENGTH (args); | |
2792 | for (i = 0; i < len; i++) | |
2793 | WALK_SUBTREE (TREE_VEC_ELT (args, i)); | |
2794 | } | |
2795 | break; | |
2796 | ||
2797 | case TYPE_PACK_EXPANSION: | |
2798 | WALK_SUBTREE (TREE_TYPE (*tp)); | |
2799 | *walk_subtrees_p = 0; | |
2800 | break; | |
2801 | ||
2802 | case EXPR_PACK_EXPANSION: | |
2803 | WALK_SUBTREE (TREE_OPERAND (*tp, 0)); | |
2804 | *walk_subtrees_p = 0; | |
2805 | break; | |
2806 | ||
2807 | case CAST_EXPR: | |
a7cbc517 JJ |
2808 | case REINTERPRET_CAST_EXPR: |
2809 | case STATIC_CAST_EXPR: | |
2810 | case CONST_CAST_EXPR: | |
2811 | case DYNAMIC_CAST_EXPR: | |
5d80a306 DG |
2812 | if (TREE_TYPE (*tp)) |
2813 | WALK_SUBTREE (TREE_TYPE (*tp)); | |
2814 | ||
2815 | { | |
2816 | int i; | |
2817 | for (i = 0; i < TREE_CODE_LENGTH (TREE_CODE (*tp)); ++i) | |
2818 | WALK_SUBTREE (TREE_OPERAND (*tp, i)); | |
2819 | } | |
2820 | *walk_subtrees_p = 0; | |
2821 | break; | |
2822 | ||
cb68ec50 PC |
2823 | case TRAIT_EXPR: |
2824 | WALK_SUBTREE (TRAIT_EXPR_TYPE1 (*tp)); | |
2825 | WALK_SUBTREE (TRAIT_EXPR_TYPE2 (*tp)); | |
2826 | *walk_subtrees_p = 0; | |
2827 | break; | |
2828 | ||
3ad6a8e1 DG |
2829 | case DECLTYPE_TYPE: |
2830 | WALK_SUBTREE (DECLTYPE_TYPE_EXPR (*tp)); | |
2831 | *walk_subtrees_p = 0; | |
2832 | break; | |
2833 | ||
2834 | ||
25af8512 | 2835 | default: |
350fae66 | 2836 | return NULL_TREE; |
25af8512 AO |
2837 | } |
2838 | ||
2839 | /* We didn't find what we were looking for. */ | |
6de9cd9a | 2840 | out: |
6de9cd9a | 2841 | return result; |
25af8512 AO |
2842 | |
2843 | #undef WALK_SUBTREE | |
2844 | } | |
2845 | ||
b655f214 MM |
2846 | /* Like save_expr, but for C++. */ |
2847 | ||
2848 | tree | |
2849 | cp_save_expr (tree expr) | |
2850 | { | |
2851 | /* There is no reason to create a SAVE_EXPR within a template; if | |
2852 | needed, we can create the SAVE_EXPR when instantiating the | |
2853 | template. Furthermore, the middle-end cannot handle C++-specific | |
2854 | tree codes. */ | |
2855 | if (processing_template_decl) | |
2856 | return expr; | |
2857 | return save_expr (expr); | |
2858 | } | |
2859 | ||
87e3dbc9 MM |
2860 | /* Initialize tree.c. */ |
2861 | ||
0a818f84 | 2862 | void |
b57b79f7 | 2863 | init_tree (void) |
0a818f84 | 2864 | { |
e2500fed | 2865 | list_hash_table = htab_create_ggc (31, list_hash, list_hash_eq, NULL); |
0a818f84 GRK |
2866 | } |
2867 | ||
872f37f9 | 2868 | /* Returns the kind of special function that DECL (a FUNCTION_DECL) |
50ad9642 MM |
2869 | is. Note that sfk_none is zero, so this function can be used as a |
2870 | predicate to test whether or not DECL is a special function. */ | |
872f37f9 MM |
2871 | |
2872 | special_function_kind | |
58f9752a | 2873 | special_function_p (const_tree decl) |
872f37f9 MM |
2874 | { |
2875 | /* Rather than doing all this stuff with magic names, we should | |
2876 | probably have a field of type `special_function_kind' in | |
2877 | DECL_LANG_SPECIFIC. */ | |
2878 | if (DECL_COPY_CONSTRUCTOR_P (decl)) | |
2879 | return sfk_copy_constructor; | |
d5f4eddd JM |
2880 | if (DECL_MOVE_CONSTRUCTOR_P (decl)) |
2881 | return sfk_move_constructor; | |
872f37f9 MM |
2882 | if (DECL_CONSTRUCTOR_P (decl)) |
2883 | return sfk_constructor; | |
596ea4e5 | 2884 | if (DECL_OVERLOADED_OPERATOR_P (decl) == NOP_EXPR) |
ac177431 JM |
2885 | { |
2886 | if (copy_fn_p (decl)) | |
2887 | return sfk_copy_assignment; | |
2888 | if (move_fn_p (decl)) | |
2889 | return sfk_move_assignment; | |
2890 | } | |
872f37f9 MM |
2891 | if (DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (decl)) |
2892 | return sfk_destructor; | |
2893 | if (DECL_COMPLETE_DESTRUCTOR_P (decl)) | |
2894 | return sfk_complete_destructor; | |
2895 | if (DECL_BASE_DESTRUCTOR_P (decl)) | |
2896 | return sfk_base_destructor; | |
2897 | if (DECL_DELETING_DESTRUCTOR_P (decl)) | |
2898 | return sfk_deleting_destructor; | |
2899 | if (DECL_CONV_FN_P (decl)) | |
2900 | return sfk_conversion; | |
2901 | ||
2902 | return sfk_none; | |
2903 | } | |
7b019c19 | 2904 | |
838dfd8a | 2905 | /* Returns nonzero if TYPE is a character type, including wchar_t. */ |
7b019c19 MM |
2906 | |
2907 | int | |
b57b79f7 | 2908 | char_type_p (tree type) |
7b019c19 MM |
2909 | { |
2910 | return (same_type_p (type, char_type_node) | |
2911 | || same_type_p (type, unsigned_char_type_node) | |
2912 | || same_type_p (type, signed_char_type_node) | |
b6baa67d KVH |
2913 | || same_type_p (type, char16_type_node) |
2914 | || same_type_p (type, char32_type_node) | |
7b019c19 MM |
2915 | || same_type_p (type, wchar_type_node)); |
2916 | } | |
ad50e811 MM |
2917 | |
2918 | /* Returns the kind of linkage associated with the indicated DECL. Th | |
2919 | value returned is as specified by the language standard; it is | |
2920 | independent of implementation details regarding template | |
2921 | instantiation, etc. For example, it is possible that a declaration | |
2922 | to which this function assigns external linkage would not show up | |
2923 | as a global symbol when you run `nm' on the resulting object file. */ | |
2924 | ||
2925 | linkage_kind | |
b57b79f7 | 2926 | decl_linkage (tree decl) |
ad50e811 MM |
2927 | { |
2928 | /* This function doesn't attempt to calculate the linkage from first | |
2929 | principles as given in [basic.link]. Instead, it makes use of | |
2930 | the fact that we have already set TREE_PUBLIC appropriately, and | |
2931 | then handles a few special cases. Ideally, we would calculate | |
2932 | linkage first, and then transform that into a concrete | |
2933 | implementation. */ | |
2934 | ||
2935 | /* Things that don't have names have no linkage. */ | |
2936 | if (!DECL_NAME (decl)) | |
2937 | return lk_none; | |
2938 | ||
c02cdc25 TT |
2939 | /* Fields have no linkage. */ |
2940 | if (TREE_CODE (decl) == FIELD_DECL) | |
2941 | return lk_none; | |
2942 | ||
ad50e811 MM |
2943 | /* Things that are TREE_PUBLIC have external linkage. */ |
2944 | if (TREE_PUBLIC (decl)) | |
2945 | return lk_external; | |
3db45ab5 | 2946 | |
b70f0f48 JM |
2947 | if (TREE_CODE (decl) == NAMESPACE_DECL) |
2948 | return lk_external; | |
2949 | ||
3db45ab5 | 2950 | /* Linkage of a CONST_DECL depends on the linkage of the enumeration |
3f774254 DB |
2951 | type. */ |
2952 | if (TREE_CODE (decl) == CONST_DECL) | |
2953 | return decl_linkage (TYPE_NAME (TREE_TYPE (decl))); | |
ad50e811 MM |
2954 | |
2955 | /* Some things that are not TREE_PUBLIC have external linkage, too. | |
2956 | For example, on targets that don't have weak symbols, we make all | |
2957 | template instantiations have internal linkage (in the object | |
2958 | file), but the symbols should still be treated as having external | |
2959 | linkage from the point of view of the language. */ | |
ad909c97 JM |
2960 | if ((TREE_CODE (decl) == FUNCTION_DECL |
2961 | || TREE_CODE (decl) == VAR_DECL) | |
b9e75696 | 2962 | && DECL_COMDAT (decl)) |
ad50e811 MM |
2963 | return lk_external; |
2964 | ||
2965 | /* Things in local scope do not have linkage, if they don't have | |
2966 | TREE_PUBLIC set. */ | |
2967 | if (decl_function_context (decl)) | |
2968 | return lk_none; | |
2969 | ||
b70f0f48 JM |
2970 | /* Members of the anonymous namespace also have TREE_PUBLIC unset, but |
2971 | are considered to have external linkage for language purposes. DECLs | |
2972 | really meant to have internal linkage have DECL_THIS_STATIC set. */ | |
ce41114b | 2973 | if (TREE_CODE (decl) == TYPE_DECL) |
b70f0f48 | 2974 | return lk_external; |
ce41114b JJ |
2975 | if (TREE_CODE (decl) == VAR_DECL || TREE_CODE (decl) == FUNCTION_DECL) |
2976 | { | |
2977 | if (!DECL_THIS_STATIC (decl)) | |
2978 | return lk_external; | |
2979 | ||
2980 | /* Static data members and static member functions from classes | |
2981 | in anonymous namespace also don't have TREE_PUBLIC set. */ | |
2982 | if (DECL_CLASS_CONTEXT (decl)) | |
2983 | return lk_external; | |
2984 | } | |
b70f0f48 | 2985 | |
ad50e811 MM |
2986 | /* Everything else has internal linkage. */ |
2987 | return lk_internal; | |
2988 | } | |
6f30f1f1 | 2989 | \f |
9beafc83 MM |
2990 | /* EXP is an expression that we want to pre-evaluate. Returns (in |
2991 | *INITP) an expression that will perform the pre-evaluation. The | |
2992 | value returned by this function is a side-effect free expression | |
2993 | equivalent to the pre-evaluated expression. Callers must ensure | |
2994 | that *INITP is evaluated before EXP. */ | |
6f30f1f1 JM |
2995 | |
2996 | tree | |
b57b79f7 | 2997 | stabilize_expr (tree exp, tree* initp) |
6f30f1f1 JM |
2998 | { |
2999 | tree init_expr; | |
3000 | ||
3001 | if (!TREE_SIDE_EFFECTS (exp)) | |
9beafc83 | 3002 | init_expr = NULL_TREE; |
6f30f1f1 JM |
3003 | else if (!real_lvalue_p (exp) |
3004 | || !TYPE_NEEDS_CONSTRUCTING (TREE_TYPE (exp))) | |
3005 | { | |
3006 | init_expr = get_target_expr (exp); | |
3007 | exp = TARGET_EXPR_SLOT (init_expr); | |
3008 | } | |
3009 | else | |
3010 | { | |
5ade1ed2 | 3011 | exp = cp_build_unary_op (ADDR_EXPR, exp, 1, tf_warning_or_error); |
6f30f1f1 JM |
3012 | init_expr = get_target_expr (exp); |
3013 | exp = TARGET_EXPR_SLOT (init_expr); | |
dd865ef6 | 3014 | exp = cp_build_indirect_ref (exp, RO_NULL, tf_warning_or_error); |
6f30f1f1 | 3015 | } |
6f30f1f1 | 3016 | *initp = init_expr; |
9beafc83 MM |
3017 | |
3018 | gcc_assert (!TREE_SIDE_EFFECTS (exp)); | |
6f30f1f1 JM |
3019 | return exp; |
3020 | } | |
6de9cd9a | 3021 | |
be93747e | 3022 | /* Add NEW_EXPR, an expression whose value we don't care about, after the |
40aac948 JM |
3023 | similar expression ORIG. */ |
3024 | ||
3025 | tree | |
be93747e | 3026 | add_stmt_to_compound (tree orig, tree new_expr) |
40aac948 | 3027 | { |
be93747e | 3028 | if (!new_expr || !TREE_SIDE_EFFECTS (new_expr)) |
40aac948 JM |
3029 | return orig; |
3030 | if (!orig || !TREE_SIDE_EFFECTS (orig)) | |
be93747e KG |
3031 | return new_expr; |
3032 | return build2 (COMPOUND_EXPR, void_type_node, orig, new_expr); | |
40aac948 JM |
3033 | } |
3034 | ||
9beafc83 MM |
3035 | /* Like stabilize_expr, but for a call whose arguments we want to |
3036 | pre-evaluate. CALL is modified in place to use the pre-evaluated | |
3037 | arguments, while, upon return, *INITP contains an expression to | |
3038 | compute the arguments. */ | |
6de9cd9a DN |
3039 | |
3040 | void | |
3041 | stabilize_call (tree call, tree *initp) | |
3042 | { | |
3043 | tree inits = NULL_TREE; | |
5039610b SL |
3044 | int i; |
3045 | int nargs = call_expr_nargs (call); | |
6de9cd9a | 3046 | |
28267cfc JJ |
3047 | if (call == error_mark_node || processing_template_decl) |
3048 | { | |
3049 | *initp = NULL_TREE; | |
3050 | return; | |
3051 | } | |
6de9cd9a | 3052 | |
5039610b | 3053 | gcc_assert (TREE_CODE (call) == CALL_EXPR); |
6de9cd9a | 3054 | |
5039610b SL |
3055 | for (i = 0; i < nargs; i++) |
3056 | { | |
3057 | tree init; | |
3058 | CALL_EXPR_ARG (call, i) = | |
3059 | stabilize_expr (CALL_EXPR_ARG (call, i), &init); | |
3060 | inits = add_stmt_to_compound (inits, init); | |
3061 | } | |
3062 | ||
3063 | *initp = inits; | |
3064 | } | |
3065 | ||
3066 | /* Like stabilize_expr, but for an AGGR_INIT_EXPR whose arguments we want | |
3067 | to pre-evaluate. CALL is modified in place to use the pre-evaluated | |
3068 | arguments, while, upon return, *INITP contains an expression to | |
3069 | compute the arguments. */ | |
3070 | ||
3071 | void | |
3072 | stabilize_aggr_init (tree call, tree *initp) | |
3073 | { | |
3074 | tree inits = NULL_TREE; | |
3075 | int i; | |
3076 | int nargs = aggr_init_expr_nargs (call); | |
3077 | ||
3078 | if (call == error_mark_node) | |
3079 | return; | |
3080 | ||
3081 | gcc_assert (TREE_CODE (call) == AGGR_INIT_EXPR); | |
3082 | ||
3083 | for (i = 0; i < nargs; i++) | |
3084 | { | |
3085 | tree init; | |
3086 | AGGR_INIT_EXPR_ARG (call, i) = | |
3087 | stabilize_expr (AGGR_INIT_EXPR_ARG (call, i), &init); | |
3088 | inits = add_stmt_to_compound (inits, init); | |
3089 | } | |
6de9cd9a DN |
3090 | |
3091 | *initp = inits; | |
3092 | } | |
3093 | ||
9beafc83 MM |
3094 | /* Like stabilize_expr, but for an initialization. |
3095 | ||
3096 | If the initialization is for an object of class type, this function | |
3097 | takes care not to introduce additional temporaries. | |
3098 | ||
3099 | Returns TRUE iff the expression was successfully pre-evaluated, | |
3100 | i.e., if INIT is now side-effect free, except for, possible, a | |
3101 | single call to a constructor. */ | |
6de9cd9a DN |
3102 | |
3103 | bool | |
3104 | stabilize_init (tree init, tree *initp) | |
3105 | { | |
3106 | tree t = init; | |
3107 | ||
9beafc83 MM |
3108 | *initp = NULL_TREE; |
3109 | ||
28267cfc | 3110 | if (t == error_mark_node || processing_template_decl) |
6de9cd9a DN |
3111 | return true; |
3112 | ||
3113 | if (TREE_CODE (t) == INIT_EXPR | |
844ae01d JM |
3114 | && TREE_CODE (TREE_OPERAND (t, 1)) != TARGET_EXPR |
3115 | && TREE_CODE (TREE_OPERAND (t, 1)) != AGGR_INIT_EXPR) | |
6de9cd9a | 3116 | { |
9beafc83 MM |
3117 | TREE_OPERAND (t, 1) = stabilize_expr (TREE_OPERAND (t, 1), initp); |
3118 | return true; | |
3119 | } | |
6de9cd9a | 3120 | |
9beafc83 MM |
3121 | if (TREE_CODE (t) == INIT_EXPR) |
3122 | t = TREE_OPERAND (t, 1); | |
3123 | if (TREE_CODE (t) == TARGET_EXPR) | |
3124 | t = TARGET_EXPR_INITIAL (t); | |
3125 | if (TREE_CODE (t) == COMPOUND_EXPR) | |
3126 | t = expr_last (t); | |
3127 | if (TREE_CODE (t) == CONSTRUCTOR | |
3128 | && EMPTY_CONSTRUCTOR_P (t)) | |
3129 | /* Default-initialization. */ | |
3130 | return true; | |
3131 | ||
3132 | /* If the initializer is a COND_EXPR, we can't preevaluate | |
3133 | anything. */ | |
3134 | if (TREE_CODE (t) == COND_EXPR) | |
3135 | return false; | |
6de9cd9a | 3136 | |
5039610b | 3137 | if (TREE_CODE (t) == CALL_EXPR) |
9beafc83 MM |
3138 | { |
3139 | stabilize_call (t, initp); | |
3140 | return true; | |
6de9cd9a DN |
3141 | } |
3142 | ||
5039610b SL |
3143 | if (TREE_CODE (t) == AGGR_INIT_EXPR) |
3144 | { | |
3145 | stabilize_aggr_init (t, initp); | |
3146 | return true; | |
3147 | } | |
3148 | ||
9beafc83 MM |
3149 | /* The initialization is being performed via a bitwise copy -- and |
3150 | the item copied may have side effects. */ | |
3151 | return TREE_SIDE_EFFECTS (init); | |
6de9cd9a DN |
3152 | } |
3153 | ||
455f19cb MM |
3154 | /* Like "fold", but should be used whenever we might be processing the |
3155 | body of a template. */ | |
3156 | ||
3157 | tree | |
3158 | fold_if_not_in_template (tree expr) | |
3159 | { | |
3160 | /* In the body of a template, there is never any need to call | |
3161 | "fold". We will call fold later when actually instantiating the | |
3162 | template. Integral constant expressions in templates will be | |
f9f1c24e | 3163 | evaluated via fold_non_dependent_expr, as necessary. */ |
392e3d51 RS |
3164 | if (processing_template_decl) |
3165 | return expr; | |
3166 | ||
3167 | /* Fold C++ front-end specific tree codes. */ | |
3168 | if (TREE_CODE (expr) == UNARY_PLUS_EXPR) | |
3169 | return fold_convert (TREE_TYPE (expr), TREE_OPERAND (expr, 0)); | |
3170 | ||
3171 | return fold (expr); | |
455f19cb MM |
3172 | } |
3173 | ||
015c2c66 MM |
3174 | /* Returns true if a cast to TYPE may appear in an integral constant |
3175 | expression. */ | |
3176 | ||
3177 | bool | |
3178 | cast_valid_in_integral_constant_expression_p (tree type) | |
3179 | { | |
3180 | return (INTEGRAL_OR_ENUMERATION_TYPE_P (type) | |
3181 | || dependent_type_p (type) | |
3182 | || type == error_mark_node); | |
3183 | } | |
3184 | ||
4537ec0c DN |
3185 | /* Return true if we need to fix linkage information of DECL. */ |
3186 | ||
3187 | static bool | |
3188 | cp_fix_function_decl_p (tree decl) | |
3189 | { | |
3190 | /* Skip if DECL is not externally visible. */ | |
3191 | if (!TREE_PUBLIC (decl)) | |
3192 | return false; | |
3193 | ||
3194 | /* We need to fix DECL if it a appears to be exported but with no | |
3195 | function body. Thunks do not have CFGs and we may need to | |
3196 | handle them specially later. */ | |
3197 | if (!gimple_has_body_p (decl) | |
3198 | && !DECL_THUNK_P (decl) | |
3199 | && !DECL_EXTERNAL (decl)) | |
87501227 JJ |
3200 | { |
3201 | struct cgraph_node *node = cgraph_get_node (decl); | |
3202 | ||
3203 | /* Don't fix same_body aliases. Although they don't have their own | |
3204 | CFG, they share it with what they alias to. */ | |
3205 | if (!node | |
3206 | || node->decl == decl | |
3207 | || !node->same_body) | |
3208 | return true; | |
3209 | } | |
4537ec0c DN |
3210 | |
3211 | return false; | |
3212 | } | |
3213 | ||
3214 | /* Clean the C++ specific parts of the tree T. */ | |
3215 | ||
3216 | void | |
3217 | cp_free_lang_data (tree t) | |
3218 | { | |
3219 | if (TREE_CODE (t) == METHOD_TYPE | |
3220 | || TREE_CODE (t) == FUNCTION_TYPE) | |
3221 | { | |
3222 | /* Default args are not interesting anymore. */ | |
3223 | tree argtypes = TYPE_ARG_TYPES (t); | |
3224 | while (argtypes) | |
3225 | { | |
3226 | TREE_PURPOSE (argtypes) = 0; | |
3227 | argtypes = TREE_CHAIN (argtypes); | |
3228 | } | |
3229 | } | |
3230 | else if (TREE_CODE (t) == FUNCTION_DECL | |
3231 | && cp_fix_function_decl_p (t)) | |
3232 | { | |
3233 | /* If T is used in this translation unit at all, the definition | |
3234 | must exist somewhere else since we have decided to not emit it | |
3235 | in this TU. So make it an external reference. */ | |
3236 | DECL_EXTERNAL (t) = 1; | |
3237 | TREE_STATIC (t) = 0; | |
3238 | } | |
652a8c1c RG |
3239 | if (CP_AGGREGATE_TYPE_P (t) |
3240 | && TYPE_NAME (t)) | |
3241 | { | |
3242 | tree name = TYPE_NAME (t); | |
3243 | if (TREE_CODE (name) == TYPE_DECL) | |
3244 | name = DECL_NAME (name); | |
3245 | /* Drop anonymous names. */ | |
3246 | if (name != NULL_TREE | |
3247 | && ANON_AGGRNAME_P (name)) | |
3248 | TYPE_NAME (t) = NULL_TREE; | |
3249 | } | |
4537ec0c DN |
3250 | } |
3251 | ||
bffad7f1 SB |
3252 | /* Stub for c-common. Please keep in sync with c-decl.c. |
3253 | FIXME: If address space support is target specific, then this | |
3254 | should be a C target hook. But currently this is not possible, | |
3255 | because this function is called via REGISTER_TARGET_PRAGMAS. */ | |
3256 | void | |
3257 | c_register_addr_space (const char *word ATTRIBUTE_UNUSED, | |
3258 | addr_space_t as ATTRIBUTE_UNUSED) | |
3259 | { | |
3260 | } | |
3261 | ||
e2500fed GK |
3262 | \f |
3263 | #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) | |
3264 | /* Complain that some language-specific thing hanging off a tree | |
3265 | node has been accessed improperly. */ | |
3266 | ||
3267 | void | |
b57b79f7 | 3268 | lang_check_failed (const char* file, int line, const char* function) |
e2500fed GK |
3269 | { |
3270 | internal_error ("lang_* check: failed in %s, at %s:%d", | |
3271 | function, trim_filename (file), line); | |
3272 | } | |
3273 | #endif /* ENABLE_TREE_CHECKING */ | |
3274 | ||
3275 | #include "gt-cp-tree.h" |