X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Flanghooks.h;h=c0744e878987216939b354cd339dd8383f363050;hb=0395dc5ef775b63c96fcb017b334b4fae14447d2;hp=e3ff6724eff60a2776c1df310ad204d02563e3c1;hpb=b94d0de9b7bacf7b823c118793fa2cd6f7892a7d;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/langhooks.h b/gcc/langhooks.h index e3ff6724eff..c0744e87898 100644 --- a/gcc/langhooks.h +++ b/gcc/langhooks.h @@ -1,11 +1,12 @@ /* The lang_hooks data structure. - Copyright 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. + Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 + 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, @@ -14,9 +15,8 @@ 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, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ +along with GCC; see the file COPYING3. If not see +. */ #ifndef GCC_LANG_HOOKS_H #define GCC_LANG_HOOKS_H @@ -24,57 +24,31 @@ Boston, MA 02111-1307, USA. */ /* 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 *); - - /* 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); + tree (*analyze_expr) (tree *, int *); }; /* The following hooks are used by tree-dump.c. */ @@ -86,7 +60,7 @@ struct lang_hooks_for_tree_dump 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. */ @@ -97,6 +71,11 @@ struct lang_hooks_for_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); @@ -105,22 +84,17 @@ struct lang_hooks_for_types 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); + /* True if the type is an instantiation of a generic type, + e.g. C++ template implicit specializations. */ + bool (*generic_p) (const_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); + /* Returns the TREE_VEC of elements of a given generic argument pack. */ + tree (*get_argument_pack_elems) (const_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 aborts. */ + arguments. The default hook dies. */ tree (*type_promotes_to) (tree); /* Register TYPE as a builtin type with the indicated NAME. The @@ -136,11 +110,34 @@ struct lang_hooks_for_types 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 *); + + /* Fill in information for the debugger about the bounds of TYPE. */ + void (*get_subrange_bounds) (const_tree, tree *, tree *); + + /* 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 @@ -156,11 +153,6 @@ struct lang_hooks_for_decls 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 @@ -170,28 +162,87 @@ struct lang_hooks_for_decls /* Returns the chain of decls so far in the current scope level. */ tree (*getdecls) (void); + /* Returns true if DECL is explicit member function. */ + bool (*function_decl_explicit_p) (tree); + + /* Returns True if the parameter is a generic parameter decl + of a generic type, e.g a template template parameter for the C++ FE. */ + bool (*generic_generic_parameter_decl_p) (const_tree); + + /* Determine if a function parameter got expanded from a + function parameter pack. */ + bool (*function_parm_expanded_from_pack_p) (tree, tree); + + /* Returns the generic declaration of a generic function instantiations. */ + tree (*get_generic_function_decl) (const_tree); + /* 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); - - /* 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); + bool (*ok_for_sibcall) (const_tree); + + /* True if OpenMP should privatize what this DECL points to rather + than the DECL itself. */ + bool (*omp_privatize_by_reference) (const_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); + + /* 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. 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); + + /* 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); + + /* Do language specific checking on an implicitly determined clause. */ + void (*omp_finish_clause) (tree clause); +}; + +/* Language hooks related to LTO serialization. */ + +struct lang_hooks_for_lto +{ + /* Begin a new LTO section named NAME. */ + void (*begin_section) (const char *name); + + /* Write DATA of length LEN to the currently open LTO section. BLOCK is a + pointer to the dynamically allocated memory containing DATA. The + append_data function is responsible for freeing it when it is no longer + needed. */ + void (*append_data) (const void *data, size_t len, void *block); + + /* End the previously begun LTO section. */ + void (*end_section) (void); }; /* Language-specific hooks. See langhooks-def.h for defaults. */ @@ -205,9 +256,12 @@ struct lang_hooks identifier nodes long enough for the language-specific slots. */ size_t identifier_size; + /* Remove any parts of the tree that are used only by the FE. */ + void (*free_lang_data) (tree); + /* 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 abort + only information available is the tree code. Expected to die on unrecognized codes. */ size_t (*tree_size) (enum tree_code); @@ -229,7 +283,7 @@ struct lang_hooks 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); + int (*handle_option) (size_t code, const char *arg, int value, int kind); /* Return false to use the default complaint about a missing argument, otherwise output a complaint and return true. */ @@ -257,47 +311,17 @@ struct lang_hooks 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); - - /* 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); + alias_set_type (*get_alias_set) (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); @@ -309,19 +333,6 @@ struct lang_hooks 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); @@ -341,25 +352,25 @@ struct lang_hooks 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++. */ + types in C++. The name is in the internal character set and + needs to be converted to the locale character set of diagnostics, + or to the execution character set for strings such as + __PRETTY_FUNCTION__. */ 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); + void (*print_error_function) (struct diagnostic_context *, const char *, + struct diagnostic_info *); /* Convert a character from the host's to the target's character set. The character should be in what C calls the "basic source @@ -379,9 +390,6 @@ struct lang_hooks 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; @@ -392,31 +400,71 @@ struct lang_hooks struct lang_hooks_for_types types; + struct lang_hooks_for_lto lto; + + /* Returns the generic parameters of an instantiation of + a generic type or decl, e.g. C++ template instantiation. */ + tree (*get_innermost_generic_parms) (const_tree); + + /* Returns the TREE_VEC of arguments of an instantiation + of a generic type of decl, e.g. C++ template instantiation. */ + tree (*get_innermost_generic_args) (const_tree); + + /* Determine if a tree is a function parameter pack. */ + bool (*function_parameter_pack_p) (const_tree); + /* 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 *); + + /* 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 or *SE + if in the process TREE_CONSTANT or TREE_SIDE_EFFECTS need updating. */ + tree (*expr_to_decl) (tree expr, bool *tc, bool *se); + + /* The EH personality function decl. */ + tree (*eh_personality) (void); - /* 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); + /* Map a type to a runtime object to match type. */ + tree (*eh_runtime_type) (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. + /* True if this language uses __cxa_end_cleanup when the ARM EABI + is enabled. */ + bool eh_use_cxa_end_cleanup; - 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); + /* True if this language requires deep unsharing of tree nodes prior to + gimplification. */ + bool deep_unsharing; /* 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; +extern struct lang_hooks lang_hooks; +extern tree add_builtin_function (const char *name, tree type, + int function_code, enum built_in_class cl, + 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 */