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Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/langhooks.h')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/langhooks.h | 491 |
1 files changed, 0 insertions, 491 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/langhooks.h b/gcc-4.2.1-5666.3/gcc/langhooks.h deleted file mode 100644 index 6b17e62ad..000000000 --- a/gcc-4.2.1-5666.3/gcc/langhooks.h +++ /dev/null @@ -1,491 +0,0 @@ -/* The lang_hooks data structure. - Copyright 2001, 2002, 2003, 2004, 2005, 2006 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) -any later version. - -GCC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -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. */ - -#ifndef GCC_LANG_HOOKS_H -#define GCC_LANG_HOOKS_H - -/* This file should be #include-d after tree.h. */ - -struct diagnostic_context; - -struct gimplify_omp_ctx; - -/* A print hook for print_tree (). */ -typedef void (*lang_print_tree_hook) (FILE *, tree, int indent); - -/* 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 *); - - /* 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); -}; - -/* The following hooks are used by tree-dump.c. */ - -struct lang_hooks_for_tree_dump -{ - /* Dump language-specific parts of tree nodes. Returns nonzero if it - does not want the usual dumping of the second argument. */ - bool (*dump_tree) (void *, tree); - - /* Determine type qualifiers in a language-specific way. */ - int (*type_quals) (tree); -}; - -/* Hooks related to types. */ - -struct lang_hooks_for_types -{ - /* Return a new type (with the indicated CODE), doing whatever - language-specific processing is required. */ - tree (*make_type) (enum tree_code); - - /* Given MODE and UNSIGNEDP, return a suitable type-tree with that - mode. */ - tree (*type_for_mode) (enum machine_mode, int); - - /* Given PRECISION and UNSIGNEDP, return a suitable type-tree for an - 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); - - /* Given a type, apply default promotions to unnamed function - arguments and return the new type. Return the same type if no - change. Required by any language that supports variadic - arguments. The default hook dies. */ - tree (*type_promotes_to) (tree); - - /* Register TYPE as a builtin type with the indicated NAME. The - TYPE is placed in the outermost lexical scope. The semantics - should be analogous to: - - typedef TYPE NAME; - - in C. The default hook ignores the declaration. */ - void (*register_builtin_type) (tree, const char *); - - /* This routine is called in tree.c to print an error message for - 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); - - /* Called from assign_temp to return the maximum size, if there is one, - for a type. */ - tree (*max_size) (tree); - - /* Register language specific type size variables as potentially OpenMP - firstprivate variables. */ - void (*omp_firstprivatize_type_sizes) (struct gimplify_omp_ctx *, tree); - - /* APPLE LOCAL begin radar 6386976 */ - /* Determine whether the type-tree passed in is specific to the - language/runtime definitions, e.g. is an Objective-C class... */ - bool (*is_runtime_specific_type) (tree); - /* APPLE LOCAL end radar 6386976 */ - - /* 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. */ - bool hash_types; -}; - -/* Language hooks related to decls and the symbol table. */ - -struct lang_hooks_for_decls -{ - /* Returns nonzero if we are in the global binding level. Ada - 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 - name. */ - tree (*pushdecl) (tree); - - /* Returns the chain of decls so far in the current scope level. */ - tree (*getdecls) (void); - - /* 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); - - /* 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); - - /* Return the COMDAT group into which this DECL should be placed. - It is known that the DECL belongs in *some* COMDAT group when - this hook is called. The return value will be used immediately, - but not explicitly deallocated, so implementations should not use - xmalloc to allocate the string returned. (Typically, the return - value will be the string already stored in an - IDENTIFIER_NODE.) */ - const char * (*comdat_group) (tree); - - /* True if OpenMP should privatize what this DECL points to rather - than the DECL itself. */ - bool (*omp_privatize_by_reference) (tree); - - /* Return sharing kind if OpenMP sharing attribute of DECL is - predetermined, OMP_CLAUSE_DEFAULT_UNSPECIFIED otherwise. */ - enum omp_clause_default_kind (*omp_predetermined_sharing) (tree); - - /* Return true if DECL's DECL_VALUE_EXPR (if any) should be - disregarded in OpenMP construct, because it is going to be - remapped during OpenMP lowering. SHARED is true if DECL - is going to be shared, false if it is going to be privatized. */ - bool (*omp_disregard_value_expr) (tree, bool); - - /* Return true if DECL that is shared iff SHARED is true should - be put into OMP_CLAUSE_PRIVATE_DEBUG. */ - bool (*omp_private_debug_clause) (tree, bool); - - /* 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); - - /* Build and return code for a copy constructor from SRC to DST. */ - tree (*omp_clause_copy_ctor) (tree clause, tree dst, tree src); - - /* Similarly, except use an assignment operator instead. */ - tree (*omp_clause_assign_op) (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); -}; - -/* Language-specific hooks. See langhooks-def.h for defaults. */ - -struct lang_hooks -{ - /* String identifying the front end. e.g. "GNU C++". */ - const char *name; - - /* sizeof (struct lang_identifier), so make_node () creates - identifier nodes long enough for the language-specific slots. */ - size_t identifier_size; - - /* Determines the size of any language-specific tcc_constant or - tcc_exceptional nodes. Since it is called from make_node, the - only information available is the tree code. Expected to die - on unrecognized codes. */ - size_t (*tree_size) (enum tree_code); - - /* The first callback made to the front end, for simple - initialization needed before any calls to handle_option. Return - the language mask to filter the switch array with. */ - unsigned int (*init_options) (unsigned int argc, const char **argv); - - /* Callback used to perform language-specific initialization for the - global diagnostic context structure. */ - void (*initialize_diagnostics) (struct diagnostic_context *); - - /* Handle the switch CODE, which has real type enum opt_code from - options.h. If the switch takes an argument, it is passed in ARG - which points to permanent storage. The handler is responsible for - checking whether ARG is NULL, which indicates that no argument - was in fact supplied. For -f and -W switches, VALUE is 1 or 0 - for the positive and negative forms respectively. - - Return 1 if the switch is valid, 0 if invalid, and -1 if it's - valid and should not be treated as language-independent too. */ - int (*handle_option) (size_t code, const char *arg, int value); - - /* Return false to use the default complaint about a missing - argument, otherwise output a complaint and return true. */ - bool (*missing_argument) (const char *opt, size_t code); - - /* Called when all command line options have been parsed to allow - further processing and initialization - - Should return true to indicate that a compiler back-end is - not required, such as with the -E option. - - If errorcount is nonzero after this call the compiler exits - immediately and the finish hook is not called. */ - bool (*post_options) (const char **); - - /* Called after post_options to initialize the front end. Return - false to indicate that no further compilation be performed, in - which case the finish hook is called immediately. */ - bool (*init) (void); - - /* Called at the end of compilation, as a finalizer. */ - void (*finish) (void); - - /* Parses the entire file. The argument is nonzero to cause bison - 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); - - /* 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); - - /* 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); - - /* Mark EXP saying that we need to be able to take the address of - it; it should not be allocated in a register. Return true if - successful. */ - bool (*mark_addressable) (tree); - - /* Hook called by staticp for language-specific tree codes. */ - tree (*staticp) (tree); - - /* Replace the DECL_LANG_SPECIFIC data, which may be NULL, of the - DECL_NODE with a newly GC-allocated copy. */ - void (*dup_lang_specific_decl) (tree); - - /* Set the DECL_ASSEMBLER_NAME for a node. If it is the sort of - thing that the assembler should talk about, set - DECL_ASSEMBLER_NAME to an appropriate IDENTIFIER_NODE. - Otherwise, set it to the ERROR_MARK_NODE to ensure that the - assembler does not talk about it. */ - void (*set_decl_assembler_name) (tree); - - /* Return nonzero if fold-const is free to use bit-field - optimizations, for instance in fold_truthop(). */ - bool (*can_use_bit_fields_p) (void); - - /* 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. */ - bool no_body_blocks; - - /* The front end can add its own statistics to -fmem-report with - this hook. It should output to stderr. */ - void (*print_statistics) (void); - - /* Called by print_tree when there is a tree of class tcc_exceptional - that it doesn't know how to display. */ - lang_print_tree_hook print_xnode; - - /* Called to print language-dependent parts of tcc_decl, tcc_type, - and IDENTIFIER_NODE nodes. */ - lang_print_tree_hook print_decl; - lang_print_tree_hook print_type; - lang_print_tree_hook print_identifier; - - /* Computes the name to use to print a declaration. DECL is the - non-NULL declaration in question. VERBOSITY determines what - information will be printed: 0: DECL_NAME, demangled as - necessary. 1: and scope information. 2: and any other - information that might be interesting, such as function parameter - types in C++. */ - const char *(*decl_printable_name) (tree decl, int verbosity); - - /* Computes the dwarf-2/3 name for a tree. VERBOSITY determines what - information will be printed: 0: DECL_NAME, demangled as - necessary. 1: and scope information. */ - const char *(*dwarf_name) (tree, int verbosity); - - /* This compares two types for equivalence ("compatible" in C-based languages). - This routine should only return 1 if it is sure. It should not be used - 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 *); - - /* 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); - - /* Convert a character from the host's to the target's character - set. The character should be in what C calls the "basic source - character set" (roughly, the set of characters defined by plain - old ASCII). The default is to return the character unchanged, - which is correct in most circumstances. Note that both argument - and result should be sign-extended under -fsigned-char, - zero-extended under -fno-signed-char. */ - HOST_WIDE_INT (*to_target_charset) (HOST_WIDE_INT); - - /* Pointers to machine-independent attribute tables, for front ends - using attribs.c. If one is NULL, it is ignored. Respectively, a - table of attributes specific to the language, a table of - attributes common to two or more languages (to allow easy - sharing), and a table of attributes for checking formats. */ - const struct attribute_spec *attribute_table; - const struct attribute_spec *common_attribute_table; - const struct attribute_spec *format_attribute_table; - - /* APPLE LOCAL begin kext identify vtables */ - int (*vtable_p) (tree); - /* APPLE LOCAL end kext identify vtables */ - - /* Function-related language hooks. */ - struct lang_hooks_for_functions function; - - struct lang_hooks_for_tree_inlining tree_inlining; - - struct lang_hooks_for_callgraph callgraph; - - struct lang_hooks_for_tree_dump tree_dump; - - struct lang_hooks_for_decls decls; - - struct lang_hooks_for_types types; - - /* 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 *); - - /* Fold an OBJ_TYPE_REF expression to the address of a function. - KNOWN_TYPE carries the true type of the OBJ_TYPE_REF_OBJECT. */ - tree (*fold_obj_type_ref) (tree, tree); - - /* Return a definition for a builtin function named NAME and whose data type - is TYPE. TYPE should be a function type with argument types. - FUNCTION_CODE tells later passes how to compile calls to this function. - See tree.h for its possible values. - - If LIBRARY_NAME is nonzero, use that for DECL_ASSEMBLER_NAME, - the name to be called if we can't opencode the function. If - ATTRS is nonzero, use that for the function's attribute list. */ - tree (*builtin_function) (const char *name, tree type, int function_code, - enum built_in_class bt_class, - const char *library_name, tree attrs); - - /* 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); - - - /* APPLE LOCAL begin radar 6353006 */ - /* For c-based languages, builds a generic type for Blocks pointers (for - emitting debug information. For other languages, returns NULL. */ - tree (*build_generic_block_struct_type) (void); - /* APPLE LOCAL end radar 6353006 */ - - /* Whenever you add entries here, make sure you adjust langhooks-def.h - and langhooks.c accordingly. */ -}; - -/* Each front end provides its own. */ -extern const struct lang_hooks lang_hooks; - -#endif /* GCC_LANG_HOOKS_H */ |