/* The lang_hooks data structure.
- Copyright 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef GCC_LANG_HOOKS_H
#define GCC_LANG_HOOKS_H
/* This file should be #include-d after tree.h. */
struct diagnostic_context;
+struct diagnostic_info;
struct gimplify_omp_ctx;
+struct array_descr_info;
+
/* A print hook for print_tree (). */
typedef void (*lang_print_tree_hook) (FILE *, tree, int indent);
+enum classify_record
+ { RECORD_IS_STRUCT, RECORD_IS_CLASS, RECORD_IS_INTERFACE };
+
/* The following hooks are documented in langhooks.c. Must not be
NULL. */
struct lang_hooks_for_tree_inlining
{
- tree (*walk_subtrees) (tree *, int *,
- tree (*) (tree *, int *, void *),
- void *, struct pointer_set_t*);
- int (*cannot_inline_tree_fn) (tree *);
- int (*disregard_inline_limits) (tree);
- tree (*add_pending_fn_decls) (void *, tree);
- int (*auto_var_in_fn_p) (tree, tree);
- int (*anon_aggr_type_p) (tree);
bool (*var_mod_type_p) (tree, tree);
- int (*start_inlining) (tree);
- void (*end_inlining) (tree);
- tree (*convert_parm_for_inlining) (tree, tree, tree, int);
};
struct lang_hooks_for_callgraph
{
/* The node passed is a language-specific tree node. If its contents
are relevant to use of other declarations, mark them. */
- tree (*analyze_expr) (tree *, int *, tree);
-
- /* Produce RTL for function passed as argument. */
- void (*expand_function) (tree);
-};
-
-/* Lang hooks for management of language-specific data or status
- when entering / leaving functions etc. */
-struct lang_hooks_for_functions
-{
- /* Called when entering a function. */
- void (*init) (struct function *);
-
- /* Called when leaving a function. */
- void (*final) (struct function *);
-
- /* Called when entering a nested function. */
- void (*enter_nested) (struct function *);
+ tree (*analyze_expr) (tree *, int *);
- /* Called when leaving a nested function. */
- void (*leave_nested) (struct function *);
-
- /* Determines if it's ok for a function to have no noreturn attribute. */
- bool (*missing_noreturn_ok_p) (tree);
+ /* Emit thunks associated to function. */
+ void (*emit_associated_thunks) (tree);
};
/* The following hooks are used by tree-dump.c. */
bool (*dump_tree) (void *, tree);
/* Determine type qualifiers in a language-specific way. */
- int (*type_quals) (tree);
+ int (*type_quals) (const_tree);
};
/* Hooks related to types. */
language-specific processing is required. */
tree (*make_type) (enum tree_code);
+ /* Return what kind of RECORD_TYPE this is, mainly for purposes of
+ debug information. If not defined, record types are assumed to
+ be structures. */
+ enum classify_record (*classify_record) (tree);
+
/* Given MODE and UNSIGNEDP, return a suitable type-tree with that
mode. */
tree (*type_for_mode) (enum machine_mode, int);
integer type with at least that precision. */
tree (*type_for_size) (unsigned, int);
- /* Given an integer type T, return a type like T but unsigned.
- If T is unsigned, the value is T. */
- tree (*unsigned_type) (tree);
-
- /* Given an integer type T, return a type like T but signed.
- If T is signed, the value is T. */
- tree (*signed_type) (tree);
-
- /* Return a type the same as TYPE except unsigned or signed
- according to UNSIGNEDP. */
- tree (*signed_or_unsigned_type) (int, tree);
+ /* True if the type is an instantiation of a generic type,
+ e.g. C++ template implicit specializations. */
+ bool (*generic_p) (const_tree);
/* Given a type, apply default promotions to unnamed function
arguments and return the new type. Return the same type if no
invalid use of an incomplete type. VALUE is the expression that
was used (or 0 if that isn't known) and TYPE is the type that was
invalid. */
- void (*incomplete_type_error) (tree value, tree type);
+ void (*incomplete_type_error) (const_tree value, const_tree type);
/* Called from assign_temp to return the maximum size, if there is one,
for a type. */
- tree (*max_size) (tree);
+ tree (*max_size) (const_tree);
/* Register language specific type size variables as potentially OpenMP
firstprivate variables. */
void (*omp_firstprivatize_type_sizes) (struct gimplify_omp_ctx *, tree);
+ /* Return TRUE if TYPE1 and TYPE2 are identical for type hashing purposes.
+ Called only after doing all language independent checks.
+ At present, this function is only called when both TYPE1 and TYPE2 are
+ FUNCTION_TYPEs. */
+ bool (*type_hash_eq) (const_tree, const_tree);
+
+ /* Return TRUE if TYPE uses a hidden descriptor and fills in information
+ for the debugger about the array bounds, strides, etc. */
+ bool (*get_array_descr_info) (const_tree, struct array_descr_info *);
+
+ /* If we requested a pointer to a vector, build up the pointers that
+ we stripped off while looking for the inner type. Similarly for
+ return values from functions. The argument TYPE is the top of the
+ chain, and BOTTOM is the new type which we will point to. */
+ tree (*reconstruct_complex_type) (tree, tree);
+
/* Nonzero if types that are identical are to be hashed so that only
one copy is kept. If a language requires unique types for each
user-specified type, such as Ada, this should be set to TRUE. */
returns -1 for an undocumented reason used in stor-layout.c. */
int (*global_bindings_p) (void);
- /* Insert BLOCK at the end of the list of subblocks of the
- current binding level. This is used when a BIND_EXPR is expanded,
- to handle the BLOCK node inside the BIND_EXPR. */
- void (*insert_block) (tree);
-
/* Function to add a decl to the current scope level. Takes one
argument, a decl to add. Returns that decl, or, if the same
symbol is already declared, may return a different decl for that
/* Returns true when we should warn for an unused global DECL.
We will already have checked that it has static binding. */
- bool (*warn_unused_global) (tree);
+ bool (*warn_unused_global) (const_tree);
/* Obtain a list of globals and do final output on them at end
of compilation */
void (*final_write_globals) (void);
- /* Do necessary preparations before assemble_variable can proceed. */
- void (*prepare_assemble_variable) (tree);
-
/* True if this decl may be called via a sibcall. */
- bool (*ok_for_sibcall) (tree);
+ bool (*ok_for_sibcall) (const_tree);
/* Return the COMDAT group into which this DECL should be placed.
It is known that the DECL belongs in *some* COMDAT group when
/* True if OpenMP should privatize what this DECL points to rather
than the DECL itself. */
- bool (*omp_privatize_by_reference) (tree);
+ bool (*omp_privatize_by_reference) (const_tree);
/* Return sharing kind if OpenMP sharing attribute of DECL is
predetermined, OMP_CLAUSE_DEFAULT_UNSPECIFIED otherwise. */
be put into OMP_CLAUSE_PRIVATE_DEBUG. */
bool (*omp_private_debug_clause) (tree, bool);
+ /* Return true if DECL in private clause needs
+ OMP_CLAUSE_PRIVATE_OUTER_REF on the private clause. */
+ bool (*omp_private_outer_ref) (tree);
+
/* Build and return code for a default constructor for DECL in
- response to CLAUSE. Return NULL if nothing to be done. */
- tree (*omp_clause_default_ctor) (tree clause, tree decl);
+ response to CLAUSE. OUTER is corresponding outer region's
+ variable if needed. Return NULL if nothing to be done. */
+ tree (*omp_clause_default_ctor) (tree clause, tree decl, tree outer);
/* Build and return code for a copy constructor from SRC to DST. */
tree (*omp_clause_copy_ctor) (tree clause, tree dst, tree src);
/* Build and return code destructing DECL. Return NULL if nothing
to be done. */
tree (*omp_clause_dtor) (tree clause, tree decl);
+
+ /* Do language specific checking on an implicitly determined clause. */
+ void (*omp_finish_clause) (tree clause);
};
/* Language-specific hooks. See langhooks-def.h for defaults. */
parsers to dump debugging information during parsing. */
void (*parse_file) (int);
- /* Called immediately after parsing to clear the binding stack. */
- void (*clear_binding_stack) (void);
+ /* Determines if it's ok for a function to have no noreturn attribute. */
+ bool (*missing_noreturn_ok_p) (tree);
/* Called to obtain the alias set to be used for an expression or type.
Returns -1 if the language does nothing special for it. */
- HOST_WIDE_INT (*get_alias_set) (tree);
-
- /* Called with an expression that is to be processed as a constant.
- Returns either the same expression or a language-independent
- constant equivalent to its input. */
- tree (*expand_constant) (tree);
+ alias_set_type (*get_alias_set) (tree);
/* Called by expand_expr for language-specific tree codes.
Fourth argument is actually an enum expand_modifier. */
rtx (*expand_expr) (tree, rtx, enum machine_mode, int, rtx *);
- /* Called by expand_expr to generate the definition of a decl. Returns
- 1 if handled, 0 otherwise. */
- int (*expand_decl) (tree);
-
- /* Hook called by safe_from_p for language-specific tree codes. It is
- up to the language front-end to install a hook if it has any such
- codes that safe_from_p needs to know about. Since same_from_p will
- recursively explore the TREE_OPERANDs of an expression, this hook
- should not reexamine those pieces. This routine may recursively
- call safe_from_p; it should always pass `0' as the TOP_P
- parameter. */
- int (*safe_from_p) (rtx, tree);
-
/* Function to finish handling an incomplete decl at the end of
compilation. Default hook is does nothing. */
void (*finish_incomplete_decl) (tree);
assembler does not talk about it. */
void (*set_decl_assembler_name) (tree);
- /* Nonzero if operations on types narrower than their mode should
- have their results reduced to the precision of the type. */
- bool reduce_bit_field_operations;
-
/* Nonzero if this front end does not generate a dummy BLOCK between
the outermost scope of the function and the FUNCTION_DECL. See
is_body_block in stmt.c, and its callers. */
in contexts where erroneously returning 0 causes problems. */
int (*types_compatible_p) (tree x, tree y);
- /* Given a CALL_EXPR, return a function decl that is its target. */
- tree (*lang_get_callee_fndecl) (tree);
-
/* Called by report_error_function to print out function name. */
- void (*print_error_function) (struct diagnostic_context *, const char *);
+ void (*print_error_function) (struct diagnostic_context *, const char *,
+ struct diagnostic_info *);
/* Called from expr_size to calculate the size of the value of an
expression in a language-dependent way. Returns a tree for the size
in bytes. A frontend can call lhd_expr_size to get the default
semantics in cases that it doesn't want to handle specially. */
- tree (*expr_size) (tree);
+ tree (*expr_size) (const_tree);
/* Convert a character from the host's to the target's character
set. The character should be in what C calls the "basic source
const struct attribute_spec *common_attribute_table;
const struct attribute_spec *format_attribute_table;
- /* Function-related language hooks. */
- struct lang_hooks_for_functions function;
-
struct lang_hooks_for_tree_inlining tree_inlining;
struct lang_hooks_for_callgraph callgraph;
/* Perform language-specific gimplification on the argument. Returns an
enum gimplify_status, though we can't see that type here. */
- int (*gimplify_expr) (tree *, tree *, tree *);
+ int (*gimplify_expr) (tree *, gimple_seq *, gimple_seq *);
/* Fold an OBJ_TYPE_REF expression to the address of a function.
KNOWN_TYPE carries the true type of the OBJ_TYPE_REF_OBJECT. */
/* Do language specific processing in the builtin function DECL */
tree (*builtin_function) (tree decl);
+ /* Like builtin_function, but make sure the scope is the external scope.
+ This is used to delay putting in back end builtin functions until the ISA
+ that defines the builtin is declared via function specific target options,
+ which can save memory for machines like the x86_64 that have multiple
+ ISAs. If this points to the same function as builtin_function, the
+ backend must add all of the builtins at program initialization time. */
+ tree (*builtin_function_ext_scope) (tree decl);
+
/* Used to set up the tree_contains_structure array for a frontend. */
void (*init_ts) (void);
/* Called by recompute_tree_invariant_for_addr_expr to go from EXPR
- to a contained expression or DECL, possibly updating *TC, *TI or
- *SE if in the process TREE_CONSTANT, TREE_INVARIANT or
- TREE_SIDE_EFFECTS need updating. */
- tree (*expr_to_decl) (tree expr, bool *tc, bool *ti, bool *se);
+ to a contained expression or DECL, possibly updating *TC or *SE
+ if in the process TREE_CONSTANT or TREE_SIDE_EFFECTS need updating. */
+ tree (*expr_to_decl) (tree expr, bool *tc, bool *se);
/* Whenever you add entries here, make sure you adjust langhooks-def.h
and langhooks.c accordingly. */
const char *library_name,
tree attrs);
+extern tree add_builtin_function_ext_scope (const char *name, tree type,
+ int function_code,
+ enum built_in_class cl,
+ const char *library_name,
+ tree attrs);
+
#endif /* GCC_LANG_HOOKS_H */
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