1 /* Language-dependent hooks for LTO.
2 Copyright (C) 2009-2022 Free Software Foundation, Inc.
3 Contributed by CodeSourcery, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
23 #include "coretypes.h"
26 #include "basic-block.h"
29 #include "stringpool.h"
30 #include "diagnostic-core.h"
31 #include "stor-layout.h"
32 #include "langhooks.h"
33 #include "langhooks-def.h"
37 #include "lto-common.h"
38 #include "stringpool.h"
41 /* LTO specific dumps. */
42 int lto_link_dump_id
, decl_merge_dump_id
, partition_dump_id
;
44 static tree
handle_noreturn_attribute (tree
*, tree
, tree
, int, bool *);
45 static tree
handle_leaf_attribute (tree
*, tree
, tree
, int, bool *);
46 static tree
handle_const_attribute (tree
*, tree
, tree
, int, bool *);
47 static tree
handle_malloc_attribute (tree
*, tree
, tree
, int, bool *);
48 static tree
handle_pure_attribute (tree
*, tree
, tree
, int, bool *);
49 static tree
handle_novops_attribute (tree
*, tree
, tree
, int, bool *);
50 static tree
handle_nonnull_attribute (tree
*, tree
, tree
, int, bool *);
51 static tree
handle_nothrow_attribute (tree
*, tree
, tree
, int, bool *);
52 static tree
handle_sentinel_attribute (tree
*, tree
, tree
, int, bool *);
53 static tree
handle_type_generic_attribute (tree
*, tree
, tree
, int, bool *);
54 static tree
handle_transaction_pure_attribute (tree
*, tree
, tree
, int, bool *);
55 static tree
handle_returns_twice_attribute (tree
*, tree
, tree
, int, bool *);
56 static tree
handle_patchable_function_entry_attribute (tree
*, tree
, tree
,
58 static tree
ignore_attribute (tree
*, tree
, tree
, int, bool *);
60 static tree
handle_format_attribute (tree
*, tree
, tree
, int, bool *);
61 static tree
handle_fnspec_attribute (tree
*, tree
, tree
, int, bool *);
62 static tree
handle_format_arg_attribute (tree
*, tree
, tree
, int, bool *);
64 /* Helper to define attribute exclusions. */
65 #define ATTR_EXCL(name, function, type, variable) \
66 { name, function, type, variable }
68 /* Define attributes that are mutually exclusive with one another. */
69 static const struct attribute_spec::exclusions attr_noreturn_exclusions
[] =
71 ATTR_EXCL ("noreturn", true, true, true),
72 ATTR_EXCL ("alloc_align", true, true, true),
73 ATTR_EXCL ("alloc_size", true, true, true),
74 ATTR_EXCL ("const", true, true, true),
75 ATTR_EXCL ("malloc", true, true, true),
76 ATTR_EXCL ("pure", true, true, true),
77 ATTR_EXCL ("returns_twice", true, true, true),
78 ATTR_EXCL ("warn_unused_result", true, true, true),
79 ATTR_EXCL (NULL
, false, false, false),
82 static const struct attribute_spec::exclusions attr_returns_twice_exclusions
[] =
84 ATTR_EXCL ("noreturn", true, true, true),
85 ATTR_EXCL (NULL
, false, false, false),
88 static const struct attribute_spec::exclusions attr_const_pure_exclusions
[] =
90 ATTR_EXCL ("const", true, true, true),
91 ATTR_EXCL ("noreturn", true, true, true),
92 ATTR_EXCL ("pure", true, true, true),
93 ATTR_EXCL (NULL
, false, false, false)
96 /* Table of machine-independent attributes supported in GIMPLE. */
97 const struct attribute_spec lto_attribute_table
[] =
99 /* { name, min_len, max_len, decl_req, type_req, fn_type_req,
100 affects_type_identity, handler, exclude } */
101 { "noreturn", 0, 0, true, false, false, false,
102 handle_noreturn_attribute
,
103 attr_noreturn_exclusions
},
104 { "leaf", 0, 0, true, false, false, false,
105 handle_leaf_attribute
, NULL
},
106 /* The same comments as for noreturn attributes apply to const ones. */
107 { "const", 0, 0, true, false, false, false,
108 handle_const_attribute
,
109 attr_const_pure_exclusions
},
110 { "malloc", 0, 0, true, false, false, false,
111 handle_malloc_attribute
, NULL
},
112 { "pure", 0, 0, true, false, false, false,
113 handle_pure_attribute
,
114 attr_const_pure_exclusions
},
115 { "no vops", 0, 0, true, false, false, false,
116 handle_novops_attribute
, NULL
},
117 { "nonnull", 0, -1, false, true, true, false,
118 handle_nonnull_attribute
, NULL
},
119 { "nothrow", 0, 0, true, false, false, false,
120 handle_nothrow_attribute
, NULL
},
121 { "patchable_function_entry", 1, 2, true, false, false, false,
122 handle_patchable_function_entry_attribute
,
124 { "returns_twice", 0, 0, true, false, false, false,
125 handle_returns_twice_attribute
,
126 attr_returns_twice_exclusions
},
127 { "sentinel", 0, 1, false, true, true, false,
128 handle_sentinel_attribute
, NULL
},
129 { "type generic", 0, 0, false, true, true, false,
130 handle_type_generic_attribute
, NULL
},
131 { "fn spec", 1, 1, false, true, true, false,
132 handle_fnspec_attribute
, NULL
},
133 { "transaction_pure", 0, 0, false, true, true, false,
134 handle_transaction_pure_attribute
, NULL
},
135 /* For internal use only. The leading '*' both prevents its usage in
136 source code and signals that it may be overridden by machine tables. */
137 { "*tm regparm", 0, 0, false, true, true, false,
138 ignore_attribute
, NULL
},
139 { NULL
, 0, 0, false, false, false, false, NULL
, NULL
}
142 /* Give the specifications for the format attributes, used by C and all
145 const struct attribute_spec lto_format_attribute_table
[] =
147 /* { name, min_len, max_len, decl_req, type_req, fn_type_req,
148 affects_type_identity, handler, exclude } */
149 { "format", 3, 3, false, true, true, false,
150 handle_format_attribute
, NULL
},
151 { "format_arg", 1, 1, false, true, true, false,
152 handle_format_arg_attribute
, NULL
},
153 { NULL
, 0, 0, false, false, false, false, NULL
, NULL
}
156 enum built_in_attribute
158 #define DEF_ATTR_NULL_TREE(ENUM) ENUM,
159 #define DEF_ATTR_INT(ENUM, VALUE) ENUM,
160 #define DEF_ATTR_STRING(ENUM, VALUE) ENUM,
161 #define DEF_ATTR_IDENT(ENUM, STRING) ENUM,
162 #define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) ENUM,
163 #include "builtin-attrs.def"
164 #undef DEF_ATTR_NULL_TREE
166 #undef DEF_ATTR_STRING
167 #undef DEF_ATTR_IDENT
168 #undef DEF_ATTR_TREE_LIST
172 static GTY(()) tree built_in_attributes
[(int) ATTR_LAST
];
176 enum lto_builtin_type
178 #define DEF_PRIMITIVE_TYPE(NAME, VALUE) NAME,
179 #define DEF_FUNCTION_TYPE_0(NAME, RETURN) NAME,
180 #define DEF_FUNCTION_TYPE_1(NAME, RETURN, ARG1) NAME,
181 #define DEF_FUNCTION_TYPE_2(NAME, RETURN, ARG1, ARG2) NAME,
182 #define DEF_FUNCTION_TYPE_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME,
183 #define DEF_FUNCTION_TYPE_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME,
184 #define DEF_FUNCTION_TYPE_5(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) NAME,
185 #define DEF_FUNCTION_TYPE_6(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
187 #define DEF_FUNCTION_TYPE_7(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
189 #define DEF_FUNCTION_TYPE_8(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
190 ARG6, ARG7, ARG8) NAME,
191 #define DEF_FUNCTION_TYPE_9(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
192 ARG6, ARG7, ARG8, ARG9) NAME,
193 #define DEF_FUNCTION_TYPE_10(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
194 ARG6, ARG7, ARG8, ARG9, ARG10) NAME,
195 #define DEF_FUNCTION_TYPE_11(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
196 ARG6, ARG7, ARG8, ARG9, ARG10, ARG11) NAME,
197 #define DEF_FUNCTION_TYPE_VAR_0(NAME, RETURN) NAME,
198 #define DEF_FUNCTION_TYPE_VAR_1(NAME, RETURN, ARG1) NAME,
199 #define DEF_FUNCTION_TYPE_VAR_2(NAME, RETURN, ARG1, ARG2) NAME,
200 #define DEF_FUNCTION_TYPE_VAR_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME,
201 #define DEF_FUNCTION_TYPE_VAR_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME,
202 #define DEF_FUNCTION_TYPE_VAR_5(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG6) \
204 #define DEF_FUNCTION_TYPE_VAR_6(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
206 #define DEF_FUNCTION_TYPE_VAR_7(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
208 #define DEF_POINTER_TYPE(NAME, TYPE) NAME,
209 #include "builtin-types.def"
210 #undef DEF_PRIMITIVE_TYPE
211 #undef DEF_FUNCTION_TYPE_0
212 #undef DEF_FUNCTION_TYPE_1
213 #undef DEF_FUNCTION_TYPE_2
214 #undef DEF_FUNCTION_TYPE_3
215 #undef DEF_FUNCTION_TYPE_4
216 #undef DEF_FUNCTION_TYPE_5
217 #undef DEF_FUNCTION_TYPE_6
218 #undef DEF_FUNCTION_TYPE_7
219 #undef DEF_FUNCTION_TYPE_8
220 #undef DEF_FUNCTION_TYPE_9
221 #undef DEF_FUNCTION_TYPE_10
222 #undef DEF_FUNCTION_TYPE_11
223 #undef DEF_FUNCTION_TYPE_VAR_0
224 #undef DEF_FUNCTION_TYPE_VAR_1
225 #undef DEF_FUNCTION_TYPE_VAR_2
226 #undef DEF_FUNCTION_TYPE_VAR_3
227 #undef DEF_FUNCTION_TYPE_VAR_4
228 #undef DEF_FUNCTION_TYPE_VAR_5
229 #undef DEF_FUNCTION_TYPE_VAR_6
230 #undef DEF_FUNCTION_TYPE_VAR_7
231 #undef DEF_POINTER_TYPE
235 typedef enum lto_builtin_type builtin_type
;
237 static GTY(()) tree builtin_types
[(int) BT_LAST
+ 1];
239 static GTY(()) tree string_type_node
;
240 static GTY(()) tree const_string_type_node
;
241 static GTY(()) tree wint_type_node
;
242 static GTY(()) tree intmax_type_node
;
243 static GTY(()) tree uintmax_type_node
;
244 static GTY(()) tree signed_size_type_node
;
246 /* Flags needed to process builtins.def. */
252 /* Attribute handlers. */
254 /* Handle a "noreturn" attribute; arguments as in
255 struct attribute_spec.handler. */
258 handle_noreturn_attribute (tree
*node
, tree
ARG_UNUSED (name
),
259 tree
ARG_UNUSED (args
), int ARG_UNUSED (flags
),
260 bool * ARG_UNUSED (no_add_attrs
))
262 tree type
= TREE_TYPE (*node
);
264 if (TREE_CODE (*node
) == FUNCTION_DECL
)
265 TREE_THIS_VOLATILE (*node
) = 1;
266 else if (TREE_CODE (type
) == POINTER_TYPE
267 && TREE_CODE (TREE_TYPE (type
)) == FUNCTION_TYPE
)
270 (build_type_variant (TREE_TYPE (type
),
271 TYPE_READONLY (TREE_TYPE (type
)), 1));
278 /* Handle a "leaf" attribute; arguments as in
279 struct attribute_spec.handler. */
282 handle_leaf_attribute (tree
*node
, tree name
,
283 tree
ARG_UNUSED (args
),
284 int ARG_UNUSED (flags
), bool *no_add_attrs
)
286 if (TREE_CODE (*node
) != FUNCTION_DECL
)
288 warning (OPT_Wattributes
, "%qE attribute ignored", name
);
289 *no_add_attrs
= true;
291 if (!TREE_PUBLIC (*node
))
293 warning (OPT_Wattributes
, "%qE attribute has no effect on unit local functions", name
);
294 *no_add_attrs
= true;
300 /* Handle a "const" attribute; arguments as in
301 struct attribute_spec.handler. */
304 handle_const_attribute (tree
*node
, tree
ARG_UNUSED (name
),
305 tree
ARG_UNUSED (args
), int ARG_UNUSED (flags
),
306 bool * ARG_UNUSED (no_add_attrs
))
308 if (TREE_CODE (*node
) != FUNCTION_DECL
309 || !fndecl_built_in_p (*node
))
310 inform (UNKNOWN_LOCATION
, "%s:%s: %E: %E", __FILE__
, __func__
, *node
, name
);
312 tree type
= TREE_TYPE (*node
);
314 /* See FIXME comment on noreturn in c_common_attribute_table. */
315 if (TREE_CODE (*node
) == FUNCTION_DECL
)
316 TREE_READONLY (*node
) = 1;
317 else if (TREE_CODE (type
) == POINTER_TYPE
318 && TREE_CODE (TREE_TYPE (type
)) == FUNCTION_TYPE
)
321 (build_type_variant (TREE_TYPE (type
), 1,
322 TREE_THIS_VOLATILE (TREE_TYPE (type
))));
330 /* Handle a "malloc" attribute; arguments as in
331 struct attribute_spec.handler. */
334 handle_malloc_attribute (tree
*node
, tree
ARG_UNUSED (name
),
335 tree
ARG_UNUSED (args
), int ARG_UNUSED (flags
),
336 bool * ARG_UNUSED (no_add_attrs
))
338 if (TREE_CODE (*node
) == FUNCTION_DECL
339 && POINTER_TYPE_P (TREE_TYPE (TREE_TYPE (*node
))))
340 DECL_IS_MALLOC (*node
) = 1;
348 /* Handle a "pure" attribute; arguments as in
349 struct attribute_spec.handler. */
352 handle_pure_attribute (tree
*node
, tree
ARG_UNUSED (name
),
353 tree
ARG_UNUSED (args
), int ARG_UNUSED (flags
),
354 bool * ARG_UNUSED (no_add_attrs
))
356 if (TREE_CODE (*node
) == FUNCTION_DECL
)
357 DECL_PURE_P (*node
) = 1;
365 /* Handle a "no vops" attribute; arguments as in
366 struct attribute_spec.handler. */
369 handle_novops_attribute (tree
*node
, tree
ARG_UNUSED (name
),
370 tree
ARG_UNUSED (args
), int ARG_UNUSED (flags
),
371 bool *ARG_UNUSED (no_add_attrs
))
373 gcc_assert (TREE_CODE (*node
) == FUNCTION_DECL
);
374 DECL_IS_NOVOPS (*node
) = 1;
379 /* Helper for nonnull attribute handling; fetch the operand number
380 from the attribute argument list. */
383 get_nonnull_operand (tree arg_num_expr
, unsigned HOST_WIDE_INT
*valp
)
385 /* Verify the arg number is a constant. */
386 if (!tree_fits_uhwi_p (arg_num_expr
))
389 *valp
= TREE_INT_CST_LOW (arg_num_expr
);
393 /* Handle the "nonnull" attribute. */
396 handle_nonnull_attribute (tree
*node
, tree
ARG_UNUSED (name
),
397 tree args
, int ARG_UNUSED (flags
),
398 bool * ARG_UNUSED (no_add_attrs
))
402 /* If no arguments are specified, all pointer arguments should be
403 non-null. Verify a full prototype is given so that the arguments
404 will have the correct types when we actually check them later.
405 Avoid diagnosing type-generic built-ins since those have no
409 gcc_assert (prototype_p (type
)
410 || !TYPE_ATTRIBUTES (type
)
411 || lookup_attribute ("type generic", TYPE_ATTRIBUTES (type
)));
416 /* Argument list specified. Verify that each argument number references
417 a pointer argument. */
418 for (; args
; args
= TREE_CHAIN (args
))
421 unsigned HOST_WIDE_INT arg_num
= 0, ck_num
;
423 if (!get_nonnull_operand (TREE_VALUE (args
), &arg_num
))
426 argument
= TYPE_ARG_TYPES (type
);
429 for (ck_num
= 1; ; ck_num
++)
431 if (!argument
|| ck_num
== arg_num
)
433 argument
= TREE_CHAIN (argument
);
437 && TREE_CODE (TREE_VALUE (argument
)) == POINTER_TYPE
);
445 /* Handle a "nothrow" attribute; arguments as in
446 struct attribute_spec.handler. */
449 handle_nothrow_attribute (tree
*node
, tree
ARG_UNUSED (name
),
450 tree
ARG_UNUSED (args
), int ARG_UNUSED (flags
),
451 bool * ARG_UNUSED (no_add_attrs
))
453 if (TREE_CODE (*node
) == FUNCTION_DECL
)
454 TREE_NOTHROW (*node
) = 1;
462 /* Handle a "sentinel" attribute. */
465 handle_sentinel_attribute (tree
*node
, tree
ARG_UNUSED (name
), tree args
,
466 int ARG_UNUSED (flags
),
467 bool * ARG_UNUSED (no_add_attrs
))
469 gcc_assert (stdarg_p (*node
));
473 tree position
= TREE_VALUE (args
);
474 gcc_assert (TREE_CODE (position
) == INTEGER_CST
);
475 if (tree_int_cst_lt (position
, integer_zero_node
))
482 /* Handle a "type_generic" attribute. */
485 handle_type_generic_attribute (tree
*node
, tree
ARG_UNUSED (name
),
486 tree
ARG_UNUSED (args
), int ARG_UNUSED (flags
),
487 bool * ARG_UNUSED (no_add_attrs
))
489 /* Ensure we have a function type. */
490 gcc_assert (TREE_CODE (*node
) == FUNCTION_TYPE
);
492 /* Ensure we have a variadic function. */
493 gcc_assert (!prototype_p (*node
) || stdarg_p (*node
));
498 /* Handle a "transaction_pure" attribute. */
501 handle_transaction_pure_attribute (tree
*node
, tree
ARG_UNUSED (name
),
502 tree
ARG_UNUSED (args
),
503 int ARG_UNUSED (flags
),
504 bool * ARG_UNUSED (no_add_attrs
))
506 /* Ensure we have a function type. */
507 gcc_assert (TREE_CODE (*node
) == FUNCTION_TYPE
);
512 /* Handle a "returns_twice" attribute. */
515 handle_returns_twice_attribute (tree
*node
, tree
ARG_UNUSED (name
),
516 tree
ARG_UNUSED (args
),
517 int ARG_UNUSED (flags
),
518 bool * ARG_UNUSED (no_add_attrs
))
520 gcc_assert (TREE_CODE (*node
) == FUNCTION_DECL
);
522 DECL_IS_RETURNS_TWICE (*node
) = 1;
528 handle_patchable_function_entry_attribute (tree
*, tree
, tree
, int, bool *)
530 /* Nothing to be done here. */
534 /* Ignore the given attribute. Used when this attribute may be usefully
535 overridden by the target, but is not used generically. */
538 ignore_attribute (tree
* ARG_UNUSED (node
), tree
ARG_UNUSED (name
),
539 tree
ARG_UNUSED (args
), int ARG_UNUSED (flags
),
542 *no_add_attrs
= true;
546 /* Handle a "format" attribute; arguments as in
547 struct attribute_spec.handler. */
550 handle_format_attribute (tree
* ARG_UNUSED (node
), tree
ARG_UNUSED (name
),
551 tree
ARG_UNUSED (args
), int ARG_UNUSED (flags
),
554 *no_add_attrs
= true;
559 /* Handle a "format_arg" attribute; arguments as in
560 struct attribute_spec.handler. */
563 handle_format_arg_attribute (tree
* ARG_UNUSED (node
), tree
ARG_UNUSED (name
),
564 tree
ARG_UNUSED (args
), int ARG_UNUSED (flags
),
567 *no_add_attrs
= true;
572 /* Handle a "fn spec" attribute; arguments as in
573 struct attribute_spec.handler. */
576 handle_fnspec_attribute (tree
*node ATTRIBUTE_UNUSED
, tree
ARG_UNUSED (name
),
577 tree args
, int ARG_UNUSED (flags
),
578 bool *no_add_attrs ATTRIBUTE_UNUSED
)
581 && TREE_CODE (TREE_VALUE (args
)) == STRING_CST
582 && !TREE_CHAIN (args
));
586 /* Cribbed from c-common.c. */
589 def_fn_type (builtin_type def
, builtin_type ret
, bool var
, int n
, ...)
592 tree
*args
= XALLOCAVEC (tree
, n
);
598 for (i
= 0; i
< n
; ++i
)
600 builtin_type a
= (builtin_type
) va_arg (list
, int);
601 t
= builtin_types
[a
];
602 if (t
== error_mark_node
)
608 t
= builtin_types
[ret
];
611 if (t
== error_mark_node
)
614 t
= build_varargs_function_type_array (t
, n
, args
);
616 t
= build_function_type_array (t
, n
, args
);
618 builtin_types
[def
] = t
;
621 /* Used to help initialize the builtin-types.def table. When a type of
622 the correct size doesn't exist, use error_mark_node instead of NULL.
623 The later results in segfaults even when a decl using the type doesn't
627 builtin_type_for_size (int size
, bool unsignedp
)
629 tree type
= lang_hooks
.types
.type_for_size (size
, unsignedp
);
630 return type
? type
: error_mark_node
;
633 /* Support for DEF_BUILTIN. */
636 def_builtin_1 (enum built_in_function fncode
, const char *name
,
637 enum built_in_class fnclass
, tree fntype
, tree libtype
,
638 bool both_p
, bool fallback_p
, bool nonansi_p
,
639 tree fnattrs
, bool implicit_p
)
644 if (fntype
== error_mark_node
)
647 libname
= name
+ strlen ("__builtin_");
648 decl
= add_builtin_function (name
, fntype
, fncode
, fnclass
,
649 (fallback_p
? libname
: NULL
),
654 && !(nonansi_p
&& flag_no_nonansi_builtin
))
655 add_builtin_function (libname
, libtype
, fncode
, fnclass
,
658 set_builtin_decl (fncode
, decl
, implicit_p
);
662 /* Initialize the attribute table for all the supported builtins. */
665 lto_init_attributes (void)
667 /* Fill in the built_in_attributes array. */
668 #define DEF_ATTR_NULL_TREE(ENUM) \
669 built_in_attributes[(int) ENUM] = NULL_TREE;
670 #define DEF_ATTR_INT(ENUM, VALUE) \
671 built_in_attributes[(int) ENUM] = build_int_cst (NULL_TREE, VALUE);
672 #define DEF_ATTR_STRING(ENUM, VALUE) \
673 built_in_attributes[(int) ENUM] = build_string (strlen (VALUE), VALUE);
674 #define DEF_ATTR_IDENT(ENUM, STRING) \
675 built_in_attributes[(int) ENUM] = get_identifier (STRING);
676 #define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) \
677 built_in_attributes[(int) ENUM] \
678 = tree_cons (built_in_attributes[(int) PURPOSE], \
679 built_in_attributes[(int) VALUE], \
680 built_in_attributes[(int) CHAIN]);
681 #include "builtin-attrs.def"
682 #undef DEF_ATTR_NULL_TREE
684 #undef DEF_ATTR_STRING
685 #undef DEF_ATTR_IDENT
686 #undef DEF_ATTR_TREE_LIST
689 /* Create builtin types and functions. VA_LIST_REF_TYPE_NODE and
690 VA_LIST_ARG_TYPE_NODE are used in builtin-types.def. */
693 lto_define_builtins (tree va_list_ref_type_node ATTRIBUTE_UNUSED
,
694 tree va_list_arg_type_node ATTRIBUTE_UNUSED
)
696 #define DEF_PRIMITIVE_TYPE(ENUM, VALUE) \
697 builtin_types[ENUM] = VALUE;
698 #define DEF_FUNCTION_TYPE_0(ENUM, RETURN) \
699 def_fn_type (ENUM, RETURN, 0, 0);
700 #define DEF_FUNCTION_TYPE_1(ENUM, RETURN, ARG1) \
701 def_fn_type (ENUM, RETURN, 0, 1, ARG1);
702 #define DEF_FUNCTION_TYPE_2(ENUM, RETURN, ARG1, ARG2) \
703 def_fn_type (ENUM, RETURN, 0, 2, ARG1, ARG2);
704 #define DEF_FUNCTION_TYPE_3(ENUM, RETURN, ARG1, ARG2, ARG3) \
705 def_fn_type (ENUM, RETURN, 0, 3, ARG1, ARG2, ARG3);
706 #define DEF_FUNCTION_TYPE_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4) \
707 def_fn_type (ENUM, RETURN, 0, 4, ARG1, ARG2, ARG3, ARG4);
708 #define DEF_FUNCTION_TYPE_5(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \
709 def_fn_type (ENUM, RETURN, 0, 5, ARG1, ARG2, ARG3, ARG4, ARG5);
710 #define DEF_FUNCTION_TYPE_6(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
712 def_fn_type (ENUM, RETURN, 0, 6, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6);
713 #define DEF_FUNCTION_TYPE_7(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
715 def_fn_type (ENUM, RETURN, 0, 7, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7);
716 #define DEF_FUNCTION_TYPE_8(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
718 def_fn_type (ENUM, RETURN, 0, 8, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
720 #define DEF_FUNCTION_TYPE_9(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
721 ARG6, ARG7, ARG8, ARG9) \
722 def_fn_type (ENUM, RETURN, 0, 9, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
724 #define DEF_FUNCTION_TYPE_10(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
725 ARG6, ARG7, ARG8, ARG9, ARG10) \
726 def_fn_type (ENUM, RETURN, 0, 10, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
727 ARG7, ARG8, ARG9, ARG10);
728 #define DEF_FUNCTION_TYPE_11(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
729 ARG6, ARG7, ARG8, ARG9, ARG10, ARG11) \
730 def_fn_type (ENUM, RETURN, 0, 11, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
731 ARG7, ARG8, ARG9, ARG10, ARG11);
732 #define DEF_FUNCTION_TYPE_VAR_0(ENUM, RETURN) \
733 def_fn_type (ENUM, RETURN, 1, 0);
734 #define DEF_FUNCTION_TYPE_VAR_1(ENUM, RETURN, ARG1) \
735 def_fn_type (ENUM, RETURN, 1, 1, ARG1);
736 #define DEF_FUNCTION_TYPE_VAR_2(ENUM, RETURN, ARG1, ARG2) \
737 def_fn_type (ENUM, RETURN, 1, 2, ARG1, ARG2);
738 #define DEF_FUNCTION_TYPE_VAR_3(ENUM, RETURN, ARG1, ARG2, ARG3) \
739 def_fn_type (ENUM, RETURN, 1, 3, ARG1, ARG2, ARG3);
740 #define DEF_FUNCTION_TYPE_VAR_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4) \
741 def_fn_type (ENUM, RETURN, 1, 4, ARG1, ARG2, ARG3, ARG4);
742 #define DEF_FUNCTION_TYPE_VAR_5(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \
743 def_fn_type (ENUM, RETURN, 1, 5, ARG1, ARG2, ARG3, ARG4, ARG5);
744 #define DEF_FUNCTION_TYPE_VAR_6(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
746 def_fn_type (ENUM, RETURN, 1, 6, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6);
747 #define DEF_FUNCTION_TYPE_VAR_7(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
749 def_fn_type (ENUM, RETURN, 1, 7, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7);
750 #define DEF_POINTER_TYPE(ENUM, TYPE) \
751 builtin_types[(int) ENUM] = build_pointer_type (builtin_types[(int) TYPE]);
753 #include "builtin-types.def"
755 #undef DEF_PRIMITIVE_TYPE
756 #undef DEF_FUNCTION_TYPE_0
757 #undef DEF_FUNCTION_TYPE_1
758 #undef DEF_FUNCTION_TYPE_2
759 #undef DEF_FUNCTION_TYPE_3
760 #undef DEF_FUNCTION_TYPE_4
761 #undef DEF_FUNCTION_TYPE_5
762 #undef DEF_FUNCTION_TYPE_6
763 #undef DEF_FUNCTION_TYPE_7
764 #undef DEF_FUNCTION_TYPE_8
765 #undef DEF_FUNCTION_TYPE_9
766 #undef DEF_FUNCTION_TYPE_10
767 #undef DEF_FUNCTION_TYPE_11
768 #undef DEF_FUNCTION_TYPE_VAR_0
769 #undef DEF_FUNCTION_TYPE_VAR_1
770 #undef DEF_FUNCTION_TYPE_VAR_2
771 #undef DEF_FUNCTION_TYPE_VAR_3
772 #undef DEF_FUNCTION_TYPE_VAR_4
773 #undef DEF_FUNCTION_TYPE_VAR_5
774 #undef DEF_FUNCTION_TYPE_VAR_6
775 #undef DEF_FUNCTION_TYPE_VAR_7
776 #undef DEF_POINTER_TYPE
777 builtin_types
[(int) BT_LAST
] = NULL_TREE
;
779 lto_init_attributes ();
781 #define DEF_BUILTIN(ENUM, NAME, CLASS, TYPE, LIBTYPE, BOTH_P, FALLBACK_P,\
782 NONANSI_P, ATTRS, IMPLICIT, COND) \
784 def_builtin_1 (ENUM, NAME, CLASS, builtin_types[(int) TYPE], \
785 builtin_types[(int) LIBTYPE], BOTH_P, FALLBACK_P, \
786 NONANSI_P, built_in_attributes[(int) ATTRS], IMPLICIT);
787 #include "builtins.def"
790 static GTY(()) tree registered_builtin_types
;
792 /* Language hooks. */
795 lto_complain_wrong_lang_p (const struct cl_option
*option ATTRIBUTE_UNUSED
)
797 /* The LTO front end inherits all the options from the first front
798 end that was used. However, not all the original front end
799 options make sense in LTO.
801 A real solution would be to filter this in collect2, but collect2
802 does not have access to all the option attributes to know what to
803 filter. So, in lto1 we silently accept inherited flags and do
809 lto_init_options_struct (struct gcc_options
*opts
)
811 /* By default, C99-like requirements for complex multiply and divide.
812 ??? Until the complex method is encoded in the IL this is the only
813 safe choice. This will pessimize Fortran code with LTO unless
814 people specify a complex method manually or use -ffast-math. */
815 opts
->x_flag_complex_method
= 2;
816 opts
->x_flag_default_complex_method
= opts
->x_flag_complex_method
;
819 /* Handle command-line option SCODE. If the option takes an argument, it is
820 stored in ARG, which is otherwise NULL. VALUE holds either a numerical
821 argument or a binary value indicating whether the positive or negative form
822 of the option was supplied. */
824 const char *resolution_file_name
;
826 lto_handle_option (size_t scode
, const char *arg
,
827 HOST_WIDE_INT value ATTRIBUTE_UNUSED
,
828 int kind ATTRIBUTE_UNUSED
,
829 location_t loc ATTRIBUTE_UNUSED
,
830 const struct cl_option_handlers
*handlers ATTRIBUTE_UNUSED
)
832 enum opt_code code
= (enum opt_code
) scode
;
837 case OPT_fresolution_
:
838 resolution_file_name
= arg
;
846 flag_wpa
= value
? "" : NULL
;
856 /* Perform post-option processing. Does additional initialization based on
857 command-line options. PFILENAME is the main input filename. Returns false
858 to enable subsequent back-end initialization. */
861 lto_post_options (const char **pfilename ATTRIBUTE_UNUSED
)
863 /* -fltrans and -fwpa are mutually exclusive. Check for that here. */
864 if (flag_wpa
&& flag_ltrans
)
865 error ("%<-fwpa%> and %<-fltrans%> are mutually exclusive");
869 flag_generate_lto
= 0;
871 /* During LTRANS, we are not looking at the whole program, only
872 a subset of the whole callgraph. */
873 flag_whole_program
= 0;
877 flag_generate_lto
= 1;
879 /* Initialize the codegen flags according to the output type. */
880 switch (flag_lto_linker_output
)
882 case LTO_LINKER_OUTPUT_REL
: /* .o: incremental link producing LTO IL */
883 /* Configure compiler same way as normal frontend would do with -flto:
884 this way we read the trees (declarations & types), symbol table,
885 optimization summaries and link them. Subsequently we output new LTO
888 flag_incremental_link
= INCREMENTAL_LINK_LTO
;
889 flag_whole_program
= 0;
891 flag_generate_lto
= 1;
892 /* It would be cool to produce .o file directly, but our current
893 simple objects does not contain the lto symbol markers. Go the slow
894 way through the asm file. */
895 lang_hooks
.lto
.begin_section
= lhd_begin_section
;
896 lang_hooks
.lto
.append_data
= lhd_append_data
;
897 lang_hooks
.lto
.end_section
= lhd_end_section
;
899 error ("%<-flinker-output=rel%> and %<-fltrans%> are mutually "
903 case LTO_LINKER_OUTPUT_NOLTOREL
: /* .o: incremental link producing asm */
904 flag_whole_program
= 0;
905 flag_incremental_link
= INCREMENTAL_LINK_NOLTO
;
908 case LTO_LINKER_OUTPUT_DYN
: /* .so: PID library */
909 /* On some targets, like i386 it makes sense to build PIC library wihout
910 -fpic for performance reasons. So no need to adjust flags. */
913 case LTO_LINKER_OUTPUT_PIE
: /* PIE binary */
914 /* If -fPIC or -fPIE was used at compile time, be sure that
916 flag_pie
= MAX (flag_pie
, flag_pic
);
921 case LTO_LINKER_OUTPUT_EXEC
: /* Normal executable */
927 case LTO_LINKER_OUTPUT_UNKNOWN
:
931 /* Excess precision other than "fast" requires front-end
933 if (flag_excess_precision
== EXCESS_PRECISION_DEFAULT
)
934 flag_excess_precision
= EXCESS_PRECISION_FAST
;
936 /* When partitioning, we can tear appart STRING_CSTs uses from the same
937 TU into multiple partitions. Without constant merging the constants
938 might not be equal at runtime. See PR50199. */
939 if (!flag_merge_constants
)
940 flag_merge_constants
= 1;
942 /* Initialize the compiler back end. */
946 /* Return a data type that has machine mode MODE.
947 If the mode is an integer,
948 then UNSIGNEDP selects between signed and unsigned types.
949 If the mode is a fixed-point mode,
950 then UNSIGNEDP selects between saturating and nonsaturating types. */
953 lto_type_for_mode (machine_mode mode
, int unsigned_p
)
958 if (mode
== TYPE_MODE (integer_type_node
))
959 return unsigned_p
? unsigned_type_node
: integer_type_node
;
961 if (mode
== TYPE_MODE (signed_char_type_node
))
962 return unsigned_p
? unsigned_char_type_node
: signed_char_type_node
;
964 if (mode
== TYPE_MODE (short_integer_type_node
))
965 return unsigned_p
? short_unsigned_type_node
: short_integer_type_node
;
967 if (mode
== TYPE_MODE (long_integer_type_node
))
968 return unsigned_p
? long_unsigned_type_node
: long_integer_type_node
;
970 if (mode
== TYPE_MODE (long_long_integer_type_node
))
971 return unsigned_p
? long_long_unsigned_type_node
: long_long_integer_type_node
;
973 for (i
= 0; i
< NUM_INT_N_ENTS
; i
++)
974 if (int_n_enabled_p
[i
]
975 && mode
== int_n_data
[i
].m
)
976 return (unsigned_p
? int_n_trees
[i
].unsigned_type
977 : int_n_trees
[i
].signed_type
);
980 return unsigned_p
? unsigned_intQI_type_node
: intQI_type_node
;
983 return unsigned_p
? unsigned_intHI_type_node
: intHI_type_node
;
986 return unsigned_p
? unsigned_intSI_type_node
: intSI_type_node
;
989 return unsigned_p
? unsigned_intDI_type_node
: intDI_type_node
;
991 #if HOST_BITS_PER_WIDE_INT >= 64
992 if (mode
== TYPE_MODE (intTI_type_node
))
993 return unsigned_p
? unsigned_intTI_type_node
: intTI_type_node
;
996 if (float16_type_node
&& mode
== TYPE_MODE (float16_type_node
))
997 return float16_type_node
;
999 if (mode
== TYPE_MODE (float_type_node
))
1000 return float_type_node
;
1002 if (mode
== TYPE_MODE (double_type_node
))
1003 return double_type_node
;
1005 if (mode
== TYPE_MODE (long_double_type_node
))
1006 return long_double_type_node
;
1008 if (mode
== TYPE_MODE (void_type_node
))
1009 return void_type_node
;
1011 if (mode
== TYPE_MODE (build_pointer_type (char_type_node
))
1012 || mode
== TYPE_MODE (build_pointer_type (integer_type_node
)))
1014 unsigned int precision
1015 = GET_MODE_PRECISION (as_a
<scalar_int_mode
> (mode
));
1017 ? make_unsigned_type (precision
)
1018 : make_signed_type (precision
));
1021 if (COMPLEX_MODE_P (mode
))
1023 machine_mode inner_mode
;
1026 if (mode
== TYPE_MODE (complex_float_type_node
))
1027 return complex_float_type_node
;
1028 if (mode
== TYPE_MODE (complex_double_type_node
))
1029 return complex_double_type_node
;
1030 if (mode
== TYPE_MODE (complex_long_double_type_node
))
1031 return complex_long_double_type_node
;
1033 if (mode
== TYPE_MODE (complex_integer_type_node
) && !unsigned_p
)
1034 return complex_integer_type_node
;
1036 inner_mode
= GET_MODE_INNER (mode
);
1037 inner_type
= lto_type_for_mode (inner_mode
, unsigned_p
);
1038 if (inner_type
!= NULL_TREE
)
1039 return build_complex_type (inner_type
);
1041 else if (GET_MODE_CLASS (mode
) == MODE_VECTOR_BOOL
1042 && valid_vector_subparts_p (GET_MODE_NUNITS (mode
)))
1044 unsigned int elem_bits
= vector_element_size (GET_MODE_BITSIZE (mode
),
1045 GET_MODE_NUNITS (mode
));
1046 tree bool_type
= build_nonstandard_boolean_type (elem_bits
);
1047 return build_vector_type_for_mode (bool_type
, mode
);
1049 else if (VECTOR_MODE_P (mode
)
1050 && valid_vector_subparts_p (GET_MODE_NUNITS (mode
)))
1052 machine_mode inner_mode
= GET_MODE_INNER (mode
);
1053 tree inner_type
= lto_type_for_mode (inner_mode
, unsigned_p
);
1054 if (inner_type
!= NULL_TREE
)
1055 return build_vector_type_for_mode (inner_type
, mode
);
1058 if (dfloat32_type_node
!= NULL_TREE
1059 && mode
== TYPE_MODE (dfloat32_type_node
))
1060 return dfloat32_type_node
;
1061 if (dfloat64_type_node
!= NULL_TREE
1062 && mode
== TYPE_MODE (dfloat64_type_node
))
1063 return dfloat64_type_node
;
1064 if (dfloat128_type_node
!= NULL_TREE
1065 && mode
== TYPE_MODE (dfloat128_type_node
))
1066 return dfloat128_type_node
;
1068 if (ALL_SCALAR_FIXED_POINT_MODE_P (mode
))
1070 if (mode
== TYPE_MODE (short_fract_type_node
))
1071 return unsigned_p
? sat_short_fract_type_node
: short_fract_type_node
;
1072 if (mode
== TYPE_MODE (fract_type_node
))
1073 return unsigned_p
? sat_fract_type_node
: fract_type_node
;
1074 if (mode
== TYPE_MODE (long_fract_type_node
))
1075 return unsigned_p
? sat_long_fract_type_node
: long_fract_type_node
;
1076 if (mode
== TYPE_MODE (long_long_fract_type_node
))
1077 return unsigned_p
? sat_long_long_fract_type_node
1078 : long_long_fract_type_node
;
1080 if (mode
== TYPE_MODE (unsigned_short_fract_type_node
))
1081 return unsigned_p
? sat_unsigned_short_fract_type_node
1082 : unsigned_short_fract_type_node
;
1083 if (mode
== TYPE_MODE (unsigned_fract_type_node
))
1084 return unsigned_p
? sat_unsigned_fract_type_node
1085 : unsigned_fract_type_node
;
1086 if (mode
== TYPE_MODE (unsigned_long_fract_type_node
))
1087 return unsigned_p
? sat_unsigned_long_fract_type_node
1088 : unsigned_long_fract_type_node
;
1089 if (mode
== TYPE_MODE (unsigned_long_long_fract_type_node
))
1090 return unsigned_p
? sat_unsigned_long_long_fract_type_node
1091 : unsigned_long_long_fract_type_node
;
1093 if (mode
== TYPE_MODE (short_accum_type_node
))
1094 return unsigned_p
? sat_short_accum_type_node
: short_accum_type_node
;
1095 if (mode
== TYPE_MODE (accum_type_node
))
1096 return unsigned_p
? sat_accum_type_node
: accum_type_node
;
1097 if (mode
== TYPE_MODE (long_accum_type_node
))
1098 return unsigned_p
? sat_long_accum_type_node
: long_accum_type_node
;
1099 if (mode
== TYPE_MODE (long_long_accum_type_node
))
1100 return unsigned_p
? sat_long_long_accum_type_node
1101 : long_long_accum_type_node
;
1103 if (mode
== TYPE_MODE (unsigned_short_accum_type_node
))
1104 return unsigned_p
? sat_unsigned_short_accum_type_node
1105 : unsigned_short_accum_type_node
;
1106 if (mode
== TYPE_MODE (unsigned_accum_type_node
))
1107 return unsigned_p
? sat_unsigned_accum_type_node
1108 : unsigned_accum_type_node
;
1109 if (mode
== TYPE_MODE (unsigned_long_accum_type_node
))
1110 return unsigned_p
? sat_unsigned_long_accum_type_node
1111 : unsigned_long_accum_type_node
;
1112 if (mode
== TYPE_MODE (unsigned_long_long_accum_type_node
))
1113 return unsigned_p
? sat_unsigned_long_long_accum_type_node
1114 : unsigned_long_long_accum_type_node
;
1117 return unsigned_p
? sat_qq_type_node
: qq_type_node
;
1119 return unsigned_p
? sat_hq_type_node
: hq_type_node
;
1121 return unsigned_p
? sat_sq_type_node
: sq_type_node
;
1123 return unsigned_p
? sat_dq_type_node
: dq_type_node
;
1125 return unsigned_p
? sat_tq_type_node
: tq_type_node
;
1127 if (mode
== UQQmode
)
1128 return unsigned_p
? sat_uqq_type_node
: uqq_type_node
;
1129 if (mode
== UHQmode
)
1130 return unsigned_p
? sat_uhq_type_node
: uhq_type_node
;
1131 if (mode
== USQmode
)
1132 return unsigned_p
? sat_usq_type_node
: usq_type_node
;
1133 if (mode
== UDQmode
)
1134 return unsigned_p
? sat_udq_type_node
: udq_type_node
;
1135 if (mode
== UTQmode
)
1136 return unsigned_p
? sat_utq_type_node
: utq_type_node
;
1139 return unsigned_p
? sat_ha_type_node
: ha_type_node
;
1141 return unsigned_p
? sat_sa_type_node
: sa_type_node
;
1143 return unsigned_p
? sat_da_type_node
: da_type_node
;
1145 return unsigned_p
? sat_ta_type_node
: ta_type_node
;
1147 if (mode
== UHAmode
)
1148 return unsigned_p
? sat_uha_type_node
: uha_type_node
;
1149 if (mode
== USAmode
)
1150 return unsigned_p
? sat_usa_type_node
: usa_type_node
;
1151 if (mode
== UDAmode
)
1152 return unsigned_p
? sat_uda_type_node
: uda_type_node
;
1153 if (mode
== UTAmode
)
1154 return unsigned_p
? sat_uta_type_node
: uta_type_node
;
1157 for (t
= registered_builtin_types
; t
; t
= TREE_CHAIN (t
))
1158 if (TYPE_MODE (TREE_VALUE (t
)) == mode
)
1159 return TREE_VALUE (t
);
1164 /* Return true if we are in the global binding level. */
1167 lto_global_bindings_p (void)
1169 return cfun
== NULL
;
1173 lto_set_decl_assembler_name (tree decl
)
1175 /* This is almost the same as lhd_set_decl_assembler_name, except that
1176 we need to uniquify file-scope names, even if they are not
1177 TREE_PUBLIC, to avoid conflicts between individual files. */
1180 if (TREE_PUBLIC (decl
))
1181 id
= targetm
.mangle_decl_assembler_name (decl
, DECL_NAME (decl
));
1184 const char *name
= IDENTIFIER_POINTER (DECL_NAME (decl
));
1186 static unsigned long num
;
1188 ASM_FORMAT_PRIVATE_NAME (label
, name
, num
++);
1189 id
= get_identifier (label
);
1192 SET_DECL_ASSEMBLER_NAME (decl
, id
);
1196 lto_pushdecl (tree t ATTRIBUTE_UNUSED
)
1198 /* Do nothing, since we get all information from DWARF and LTO
1206 /* We have our own write_globals langhook, hence the getdecls
1207 langhook shouldn't be used, except by dbxout.c, so we can't
1213 lto_builtin_function (tree decl
)
1219 lto_register_builtin_type (tree type
, const char *name
)
1223 if (!TYPE_NAME (type
))
1225 decl
= build_decl (UNKNOWN_LOCATION
, TYPE_DECL
,
1226 get_identifier (name
), type
);
1227 DECL_ARTIFICIAL (decl
) = 1;
1228 TYPE_NAME (type
) = decl
;
1231 registered_builtin_types
= tree_cons (0, type
, registered_builtin_types
);
1234 /* Build nodes that would have be created by the C front-end; necessary
1235 for including builtin-types.def and ultimately builtins.def. */
1238 lto_build_c_type_nodes (void)
1240 gcc_assert (void_type_node
);
1242 void_list_node
= build_tree_list (NULL_TREE
, void_type_node
);
1243 string_type_node
= build_pointer_type (char_type_node
);
1244 const_string_type_node
1245 = build_pointer_type (build_qualified_type (char_type_node
, TYPE_QUAL_CONST
));
1247 if (strcmp (SIZE_TYPE
, "unsigned int") == 0)
1249 intmax_type_node
= integer_type_node
;
1250 uintmax_type_node
= unsigned_type_node
;
1251 signed_size_type_node
= integer_type_node
;
1253 else if (strcmp (SIZE_TYPE
, "long unsigned int") == 0)
1255 intmax_type_node
= long_integer_type_node
;
1256 uintmax_type_node
= long_unsigned_type_node
;
1257 signed_size_type_node
= long_integer_type_node
;
1259 else if (strcmp (SIZE_TYPE
, "long long unsigned int") == 0)
1261 intmax_type_node
= long_long_integer_type_node
;
1262 uintmax_type_node
= long_long_unsigned_type_node
;
1263 signed_size_type_node
= long_long_integer_type_node
;
1269 signed_size_type_node
= NULL_TREE
;
1270 for (i
= 0; i
< NUM_INT_N_ENTS
; i
++)
1271 if (int_n_enabled_p
[i
])
1273 char name
[50], altname
[50];
1274 sprintf (name
, "__int%d unsigned", int_n_data
[i
].bitsize
);
1275 sprintf (altname
, "__int%d__ unsigned", int_n_data
[i
].bitsize
);
1277 if (strcmp (name
, SIZE_TYPE
) == 0
1278 || strcmp (altname
, SIZE_TYPE
) == 0)
1280 intmax_type_node
= int_n_trees
[i
].signed_type
;
1281 uintmax_type_node
= int_n_trees
[i
].unsigned_type
;
1282 signed_size_type_node
= int_n_trees
[i
].signed_type
;
1285 if (signed_size_type_node
== NULL_TREE
)
1289 wint_type_node
= unsigned_type_node
;
1290 pid_type_node
= integer_type_node
;
1293 /* Perform LTO-specific initialization. */
1300 /* Initialize LTO-specific data structures. */
1303 /* We need to generate LTO if running in WPA mode. */
1304 flag_generate_lto
= (flag_incremental_link
== INCREMENTAL_LINK_LTO
1305 || flag_wpa
!= NULL
);
1307 /* Create the basic integer types. */
1308 build_common_tree_nodes (flag_signed_char
);
1310 /* The global tree for the main identifier is filled in by
1311 language-specific front-end initialization that is not run in the
1312 LTO back-end. It appears that all languages that perform such
1313 initialization currently do so in the same way, so we do it here. */
1314 if (main_identifier_node
== NULL_TREE
)
1315 main_identifier_node
= get_identifier ("main");
1317 /* In the C++ front-end, fileptr_type_node is defined as a variant
1318 copy of ptr_type_node, rather than ptr_node itself. The
1319 distinction should only be relevant to the front-end, so we
1320 always use the C definition here in lto1.
1321 Likewise for const struct tm*. */
1322 for (unsigned i
= 0;
1323 i
< sizeof (builtin_structptr_types
) / sizeof (builtin_structptr_type
);
1326 gcc_assert (builtin_structptr_types
[i
].node
1327 == builtin_structptr_types
[i
].base
);
1328 gcc_assert (TYPE_MAIN_VARIANT (builtin_structptr_types
[i
].node
)
1329 == builtin_structptr_types
[i
].base
);
1332 lto_build_c_type_nodes ();
1333 gcc_assert (va_list_type_node
);
1335 if (TREE_CODE (va_list_type_node
) == ARRAY_TYPE
)
1337 tree x
= build_pointer_type (TREE_TYPE (va_list_type_node
));
1338 lto_define_builtins (x
, x
);
1342 lto_define_builtins (build_reference_type (va_list_type_node
),
1346 targetm
.init_builtins ();
1347 build_common_builtin_nodes ();
1349 /* Assign names to the builtin types, otherwise they'll end up
1350 as __unknown__ in debug info.
1351 ??? We simply need to stop pre-seeding the streamer cache.
1352 Below is modeled after from c-common.c:c_common_nodes_and_builtins */
1353 #define NAME_TYPE(t,n) \
1355 TYPE_NAME (t) = build_decl (UNKNOWN_LOCATION, TYPE_DECL, \
1356 get_identifier (n), t)
1357 NAME_TYPE (integer_type_node
, "int");
1358 NAME_TYPE (char_type_node
, "char");
1359 NAME_TYPE (long_integer_type_node
, "long int");
1360 NAME_TYPE (unsigned_type_node
, "unsigned int");
1361 NAME_TYPE (long_unsigned_type_node
, "long unsigned int");
1362 NAME_TYPE (long_long_integer_type_node
, "long long int");
1363 NAME_TYPE (long_long_unsigned_type_node
, "long long unsigned int");
1364 NAME_TYPE (short_integer_type_node
, "short int");
1365 NAME_TYPE (short_unsigned_type_node
, "short unsigned int");
1366 if (signed_char_type_node
!= char_type_node
)
1367 NAME_TYPE (signed_char_type_node
, "signed char");
1368 if (unsigned_char_type_node
!= char_type_node
)
1369 NAME_TYPE (unsigned_char_type_node
, "unsigned char");
1370 NAME_TYPE (float_type_node
, "float");
1371 NAME_TYPE (double_type_node
, "double");
1372 NAME_TYPE (long_double_type_node
, "long double");
1373 NAME_TYPE (void_type_node
, "void");
1374 NAME_TYPE (boolean_type_node
, "bool");
1375 NAME_TYPE (complex_float_type_node
, "complex float");
1376 NAME_TYPE (complex_double_type_node
, "complex double");
1377 NAME_TYPE (complex_long_double_type_node
, "complex long double");
1378 for (i
= 0; i
< NUM_INT_N_ENTS
; i
++)
1379 if (int_n_enabled_p
[i
])
1382 sprintf (name
, "__int%d", int_n_data
[i
].bitsize
);
1383 NAME_TYPE (int_n_trees
[i
].signed_type
, name
);
1390 /* Register c++-specific dumps. */
1393 lto_register_dumps (gcc::dump_manager
*dumps
)
1395 lto_link_dump_id
= dumps
->dump_register
1396 (".lto-link", "ipa-lto-link", "ipa-lto-link",
1397 DK_ipa
, OPTGROUP_NONE
, false);
1398 decl_merge_dump_id
= dumps
->dump_register
1399 (".lto-decl-merge", "ipa-lto-decl-merge", "ipa-lto-decl-merge",
1400 DK_ipa
, OPTGROUP_NONE
, false);
1401 partition_dump_id
= dumps
->dump_register
1402 (".lto-partition", "ipa-lto-partition", "ipa-lto-partition",
1403 DK_ipa
, OPTGROUP_NONE
, false);
1407 /* Initialize tree structures required by the LTO front end. */
1409 static void lto_init_ts (void)
1411 tree_contains_struct
[NAMESPACE_DECL
][TS_DECL_MINIMAL
] = 1;
1414 #undef LANG_HOOKS_NAME
1415 #define LANG_HOOKS_NAME "GNU GIMPLE"
1416 #undef LANG_HOOKS_OPTION_LANG_MASK
1417 #define LANG_HOOKS_OPTION_LANG_MASK lto_option_lang_mask
1418 #undef LANG_HOOKS_COMPLAIN_WRONG_LANG_P
1419 #define LANG_HOOKS_COMPLAIN_WRONG_LANG_P lto_complain_wrong_lang_p
1420 #undef LANG_HOOKS_INIT_OPTIONS_STRUCT
1421 #define LANG_HOOKS_INIT_OPTIONS_STRUCT lto_init_options_struct
1422 #undef LANG_HOOKS_REGISTER_DUMPS
1423 #define LANG_HOOKS_REGISTER_DUMPS lto_register_dumps
1424 #undef LANG_HOOKS_HANDLE_OPTION
1425 #define LANG_HOOKS_HANDLE_OPTION lto_handle_option
1426 #undef LANG_HOOKS_POST_OPTIONS
1427 #define LANG_HOOKS_POST_OPTIONS lto_post_options
1428 #undef LANG_HOOKS_GET_ALIAS_SET
1429 #define LANG_HOOKS_GET_ALIAS_SET gimple_get_alias_set
1430 #undef LANG_HOOKS_TYPE_FOR_MODE
1431 #define LANG_HOOKS_TYPE_FOR_MODE lto_type_for_mode
1432 #undef LANG_HOOKS_SET_DECL_ASSEMBLER_NAME
1433 #define LANG_HOOKS_SET_DECL_ASSEMBLER_NAME lto_set_decl_assembler_name
1434 #undef LANG_HOOKS_GLOBAL_BINDINGS_P
1435 #define LANG_HOOKS_GLOBAL_BINDINGS_P lto_global_bindings_p
1436 #undef LANG_HOOKS_PUSHDECL
1437 #define LANG_HOOKS_PUSHDECL lto_pushdecl
1438 #undef LANG_HOOKS_GETDECLS
1439 #define LANG_HOOKS_GETDECLS lto_getdecls
1440 #undef LANG_HOOKS_REGISTER_BUILTIN_TYPE
1441 #define LANG_HOOKS_REGISTER_BUILTIN_TYPE lto_register_builtin_type
1442 #undef LANG_HOOKS_BUILTIN_FUNCTION
1443 #define LANG_HOOKS_BUILTIN_FUNCTION lto_builtin_function
1444 #undef LANG_HOOKS_INIT
1445 #define LANG_HOOKS_INIT lto_init
1446 #undef LANG_HOOKS_PARSE_FILE
1447 #define LANG_HOOKS_PARSE_FILE lto_main
1448 #undef LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS
1449 #define LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS true
1450 #undef LANG_HOOKS_TYPES_COMPATIBLE_P
1451 #define LANG_HOOKS_TYPES_COMPATIBLE_P NULL
1452 #undef LANG_HOOKS_EH_PERSONALITY
1453 #define LANG_HOOKS_EH_PERSONALITY lto_eh_personality
1455 /* Attribute hooks. */
1456 #undef LANG_HOOKS_COMMON_ATTRIBUTE_TABLE
1457 #define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE lto_attribute_table
1458 #undef LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE
1459 #define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE lto_format_attribute_table
1461 #undef LANG_HOOKS_BEGIN_SECTION
1462 #define LANG_HOOKS_BEGIN_SECTION lto_obj_begin_section
1463 #undef LANG_HOOKS_APPEND_DATA
1464 #define LANG_HOOKS_APPEND_DATA lto_obj_append_data
1465 #undef LANG_HOOKS_END_SECTION
1466 #define LANG_HOOKS_END_SECTION lto_obj_end_section
1468 #undef LANG_HOOKS_INIT_TS
1469 #define LANG_HOOKS_INIT_TS lto_init_ts
1471 struct lang_hooks lang_hooks
= LANG_HOOKS_INITIALIZER
;
1473 /* Language hooks that are not part of lang_hooks. */
1476 convert (tree type ATTRIBUTE_UNUSED
, tree expr ATTRIBUTE_UNUSED
)
1481 /* Tree walking support. */
1483 static enum lto_tree_node_structure_enum
1484 lto_tree_node_structure (union lang_tree_node
*t ATTRIBUTE_UNUSED
)
1486 return TS_LTO_GENERIC
;
1489 #include "gtype-lto.h"
1490 #include "gt-lto-lto-lang.h"