* *
* C Header File *
* *
- * $Revision: 1.1 $
- * *
- * Copyright (C) 1992-2001 Free Software Foundation, Inc. *
+ * Copyright (C) 1992-2004 Free Software Foundation, Inc. *
* *
* GNAT is free software; you can redistribute it and/or modify it under *
* terms of the GNU General Public License as published by the Free Soft- *
* file might be covered by the GNU Public License. *
* *
* GNAT was originally developed by the GNAT team at New York University. *
- * It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). *
+ * Extensive contributions were provided by Ada Core Technologies Inc. *
* *
****************************************************************************/
-/* Declare all functions and types used by gigi. */
-
-/* Decode all the language specific options that cannot be decoded by GCC. The
- option decoding phase of GCC calls this routine on the flags that it cannot
- decode. This routine returns 1 if it is successful, otherwise it
- returns 0. */
-extern int gnat_decode_option PARAMS ((int, char **));
-
-/* Perform all initialization steps for option processing. */
-extern void gnat_init_options PARAMS ((void));
-
-/* Perform all the initialization steps that are language-specific. */
-extern void gnat_init PARAMS ((void));
+/* The largest alignment, in bits, that is needed for using the widest
+ move instruction. */
+extern unsigned int largest_move_alignment;
-/* See if DECL has an RTL that is indirect via a pseudo-register or a
- memory location and replace it with an indirect reference if so.
- This improves the debugger's ability to display the value. */
-extern void adjust_decl_rtl PARAMS ((tree));
-
-/* Record the current code position in GNAT_NODE. */
-extern void record_code_position PARAMS ((Node_Id));
+/* Declare all functions and types used by gigi. */
-/* Insert the code for GNAT_NODE at the position saved for that node. */
-extern void insert_code_for PARAMS ((Node_Id));
+/* Compute the alignment of the largest mode that can be used for copying
+ objects. */
+extern void gnat_compute_largest_alignment (void);
/* Routine called by gcc for emitting a stack check. GNU_EXPR is the
expression that contains the last address on the stack to check. */
-extern tree emit_stack_check PARAMS ((tree));
-
-/* Make a TRANSFORM_EXPR to later expand GNAT_NODE into code. */
-extern tree make_transform_expr PARAMS ((Node_Id));
-
-/* Update the setjmp buffer BUF with the current stack pointer. We assume
- here that a __builtin_setjmp was done to BUF. */
-extern void update_setjmp_buf PARAMS ((tree));
-
-/* Get the alias set corresponding to a type or expression. */
-extern HOST_WIDE_INT gnat_get_alias_set PARAMS ((tree));
+extern tree emit_stack_check (tree);
/* GNU_TYPE is a type. Determine if it should be passed by reference by
default. */
-extern int default_pass_by_ref PARAMS ((tree));
+extern bool default_pass_by_ref (tree);
-/* GNU_TYPE is the type of a subprogram parameter. Determine from the type if
- it should be passed by reference. */
-extern int must_pass_by_ref PARAMS ((tree));
+/* GNU_TYPE is the type of a subprogram parameter. Determine from the type
+ if it should be passed by reference. */
+extern bool must_pass_by_ref (tree);
-/* Elaboration routines for the front end */
-extern void elab_all_gnat PARAMS ((void));
-
-/* Emit a label UNITNAME_LABEL and specify that it is part of source
- file FILENAME. If this is being written for SGI's Workshop
- debugger, and we are writing Dwarf2 debugging information, add
- additional debug info. */
-extern void emit_unit_label PARAMS ((char *, char *));
+/* Elaboration routines for the front end. */
+extern void elab_all_gnat (void);
/* Initialize DUMMY_NODE_TABLE. */
-extern void init_dummy_type PARAMS ((void));
+extern void init_dummy_type (void);
/* Given GNAT_ENTITY, a GNAT defining identifier node, which denotes some Ada
entity, this routine returns the equivalent GCC tree for that entity
was not created previously. The value of 1 is normally used for a non-zero
DEFINITION, but a value of 2 is used in special circumstances, defined in
the code. */
-extern tree gnat_to_gnu_entity PARAMS ((Entity_Id, tree, int));
+extern tree gnat_to_gnu_entity (Entity_Id, tree, int);
/* Given GNAT_ENTITY, an entity in the incoming GNAT tree, return a
GCC type corresponding to that entity. GNAT_ENTITY is assumed to
refer to an Ada type. */
-extern tree gnat_to_gnu_type PARAMS ((Entity_Id));
+extern tree gnat_to_gnu_type (Entity_Id);
+
+/* Add GNU_STMT to the current BLOCK_STMT node. */
+extern void add_stmt (tree);
+
+/* Similar, but set the location of GNU_STMT to that of GNAT_NODE. */
+extern void add_stmt_with_node (tree, Node_Id);
+
+/* Set the BLOCK node corresponding to the current code group to GNU_BLOCK. */
+extern void set_block_for_group (tree);
+
+/* Add a declaration statement for GNU_DECL to the current BLOCK_STMT node.
+ Get SLOC from Entity_Id. */
+extern void add_decl_expr (tree, Entity_Id);
/* Given GNAT_ENTITY, elaborate all expressions that are required to
be elaborated at the point of its definition, but do nothing else. */
-extern void elaborate_entity PARAMS ((Entity_Id));
+extern void elaborate_entity (Entity_Id);
/* Mark GNAT_ENTITY as going out of scope at this point. Recursively mark
any entities on its entity chain similarly. */
-extern void mark_out_of_scope PARAMS ((Entity_Id));
+extern void mark_out_of_scope (Entity_Id);
/* Make a dummy type corresponding to GNAT_TYPE. */
-extern tree make_dummy_type PARAMS ((Entity_Id));
+extern tree make_dummy_type (Entity_Id);
/* Get the unpadded version of a GNAT type. */
-extern tree get_unpadded_type PARAMS ((Entity_Id));
+extern tree get_unpadded_type (Entity_Id);
/* Called when we need to protect a variable object using a save_expr. */
-extern tree maybe_variable PARAMS ((tree, Node_Id));
+extern tree maybe_variable (tree);
/* Create a record type that contains a field of TYPE with a starting bit
- position so that it is aligned to ALIGN bits. */
-/* Create a record type that contains a field of TYPE with a starting bit
position so that it is aligned to ALIGN bits and is SIZE bytes long. */
-extern tree make_aligning_type PARAMS ((tree, int, tree));
+extern tree make_aligning_type (tree, int, tree);
/* Given a GNU tree and a GNAT list of choices, generate an expression to test
the value passed against the list of choices. */
-extern tree choices_to_gnu PARAMS ((tree, Node_Id));
+extern tree choices_to_gnu (tree, Node_Id);
/* Given a type T, a FIELD_DECL F, and a replacement value R,
return a new type with all size expressions that contain F
updated by replacing F with R. This is identical to GCC's
substitute_in_type except that it knows about TYPE_INDEX_TYPE. */
-extern tree gnat_substitute_in_type PARAMS ((tree, tree, tree));
+extern tree gnat_substitute_in_type (tree, tree, tree);
/* Return the "RM size" of GNU_TYPE. This is the actual number of bits
needed to represent the object. */
-extern tree rm_size PARAMS ((tree));
+extern tree rm_size (tree);
/* Given GNU_ID, an IDENTIFIER_NODE containing a name and SUFFIX, a
string, return a new IDENTIFIER_NODE that is the concatenation of
the name in GNU_ID and SUFFIX. */
-extern tree concat_id_with_name PARAMS ((tree, const char *));
+extern tree concat_id_with_name (tree, const char *);
-/* Return the name to be used for GNAT_ENTITY. If a type, create a
+/* Return the name to be used for GNAT_ENTITY. If a type, create a
fully-qualified name, possibly with type information encoding.
Otherwise, return the name. */
-extern tree get_entity_name PARAMS ((Entity_Id));
+extern tree get_entity_name (Entity_Id);
/* Return a name for GNAT_ENTITY concatenated with two underscores and
SUFFIX. */
-extern tree create_concat_name PARAMS ((Entity_Id, const char *));
-
-/* Flag indicating whether file names are discarded in exception messages */
-extern int discard_file_names;
+extern tree create_concat_name (Entity_Id, const char *);
-/* If true, then gigi is being called on an analyzed but unexpanded
- tree, and the only purpose of the call is to properly annotate
- types with representation information */
-extern int type_annotate_only;
+/* If true, then gigi is being called on an analyzed but unexpanded tree, and
+ the only purpose of the call is to properly annotate types with
+ representation information. */
+extern bool type_annotate_only;
/* Current file name without path */
extern const char *ref_filename;
-/* List of TREE_LIST nodes representing a block stack. TREE_VALUE
- of each gives the variable used for the setjmp buffer in the current
- block, if any. */
-extern tree gnu_block_stack;
-
-/* For most front-ends, this is the parser for the language. For us, we
- process the GNAT tree. */
-extern int yyparse PARAMS ((void));
-
/* This is the main program of the back-end. It sets up all the table
structures and then generates code. */
-extern void gigi PARAMS ((Node_Id, int, int, struct Node *,
- Node_Id *, Node_Id *,
- struct Elist_Header *,
- struct Elmt_Item *,
- struct String_Entry *,
- Char_Code *,
- struct List_Header *,
- Int, char *,
- Entity_Id, Entity_Id, Entity_Id,
- Int));
-
-/* This function is the driver of the GNAT to GCC tree transformation process.
- GNAT_NODE is the root of some gnat tree. It generates code for that
- part of the tree. */
-extern void gnat_to_code PARAMS ((Node_Id));
+extern void gigi (Node_Id, int, int, struct Node *, Node_Id *, Node_Id *,
+ struct Elist_Header *, struct Elmt_Item *,
+ struct String_Entry *, Char_Code *, struct List_Header *,
+ Int, char *, Entity_Id, Entity_Id, Entity_Id, Int);
/* GNAT_NODE is the root of some GNAT tree. Return the root of the
GCC tree corresponding to that GNAT tree. Normally, no code is generated;
we just return an equivalent tree which is used elsewhere to generate
code. */
-extern tree gnat_to_gnu PARAMS ((Node_Id));
+extern tree gnat_to_gnu (Node_Id);
+
+/* GNU_STMT is a statement. We generate code for that statement. */
+extern void gnat_expand_stmt (tree);
+
+extern int gnat_gimplify_expr (tree *, tree *, tree *);
/* Do the processing for the declaration of a GNAT_ENTITY, a type. If
a separate Freeze node exists, delay the bulk of the processing. Otherwise
make a GCC type for GNAT_ENTITY and set up the correspondance. */
-extern void process_type PARAMS ((Entity_Id));
+extern void process_type (Entity_Id);
-/* Determine the input_filename and the lineno from the source location
- (Sloc) of GNAT_NODE node. Set the global variable input_filename and
- lineno. If WRITE_NOTE_P is true, emit a line number note. */
-extern void set_lineno PARAMS ((Node_Id, int));
+/* Convert Sloc into *LOCUS (a location_t). Return true if this Sloc
+ corresponds to a source code location and false if it doesn't. In the
+ latter case, we don't update *LOCUS. We also set the Gigi global variable
+ REF_FILENAME to the reference file name as given by sinput (i.e no
+ directory). */
+extern bool Sloc_to_locus (Source_Ptr, location_t *);
/* Post an error message. MSG is the error message, properly annotated.
NODE is the node at which to post the error and the node to use for the
"&" substitution. */
-extern void post_error PARAMS ((const char *, Node_Id));
+extern void post_error (const char *, Node_Id);
/* Similar, but NODE is the node at which to post the error and ENT
is the node to use for the "&" substitution. */
-extern void post_error_ne PARAMS ((const char *, Node_Id, Entity_Id));
+extern void post_error_ne (const char *, Node_Id, Entity_Id);
/* Similar, but NODE is the node at which to post the error, ENT is the node
to use for the "&" substitution, and N is the number to use for the ^. */
-extern void post_error_ne_num PARAMS ((const char *, Node_Id, Entity_Id,
- int));
+extern void post_error_ne_num (const char *, Node_Id, Entity_Id, int);
/* Similar to post_error_ne_num, but T is a GCC tree representing the number
to write. If the tree represents a constant that fits within a
host integer, the text inside curly brackets in MSG will be output
(presumably including a '^'). Otherwise that text will not be output
and the text inside square brackets will be output instead. */
-extern void post_error_ne_tree PARAMS ((const char *, Node_Id, Entity_Id,
- tree));
+extern void post_error_ne_tree (const char *, Node_Id, Entity_Id, tree);
/* Similar to post_error_ne_tree, except that NUM is a second
integer to write in the message. */
-extern void post_error_ne_tree_2 PARAMS ((const char *, Node_Id, Entity_Id,
- tree, int));
+extern void post_error_ne_tree_2 (const char *, Node_Id, Entity_Id, tree, int);
/* Set the node for a second '&' in the error message. */
-extern void set_second_error_entity PARAMS ((Entity_Id));
-
-/* Surround EXP with a SAVE_EXPR, but handle unconstrained objects specially
- since it doesn't make any sense to put them in a SAVE_EXPR. */
-extern tree make_save_expr PARAMS ((tree));
+extern void set_second_error_entity (Entity_Id);
-/* Signal abort, with "Gigi abort" as the error label, and error_gnat_node
- as the relevant node that provides the location info for the error.
- The single parameter CODE is an integer code that is included in the
- additional error message generated. */
-extern void gigi_abort PARAMS ((int)) ATTRIBUTE_NORETURN;
+/* Protect EXP from multiple evaluation. This may make a SAVE_EXPR. */
+extern tree protect_multiple_eval (tree);
/* Initialize the table that maps GNAT codes to GCC codes for simple
binary and unary operations. */
-extern void init_code_table PARAMS ((void));
+extern void init_code_table (void);
/* Current node being treated, in case gigi_abort or Check_Elaboration_Code
called. */
extern Node_Id error_gnat_node;
/* This is equivalent to stabilize_reference in GCC's tree.c, but we know
- how to handle our new nodes and we take an extra argument that says
+ how to handle our new nodes and we take an extra argument that says
whether to force evaluation of everything. */
-
-extern tree gnat_stabilize_reference PARAMS ((tree, int));
+extern tree gnat_stabilize_reference (tree, bool);
/* Highest number in the front-end node table. */
extern int max_gnat_nodes;
\f
/* Data structures used to represent attributes. */
-enum attr_type {ATTR_MACHINE_ATTRIBUTE, ATTR_LINK_ALIAS,
+enum attr_type {ATTR_MACHINE_ATTRIBUTE, ATTR_LINK_ALIAS,
ATTR_LINK_SECTION, ATTR_WEAK_EXTERNAL};
struct attrib
ADT_get_excptr_decl,
ADT_setjmp_decl,
ADT_longjmp_decl,
+ ADT_update_setjmp_buf_decl,
ADT_raise_nodefer_decl,
- ADT_raise_constraint_error_decl,
- ADT_raise_program_error_decl,
- ADT_raise_storage_error_decl,
+ ADT_begin_handler_decl,
+ ADT_end_handler_decl,
ADT_LAST};
-extern tree gnat_std_decls[(int) ADT_LAST];
+extern GTY(()) tree gnat_std_decls[(int) ADT_LAST];
+extern GTY(()) tree gnat_raise_decls[(int) LAST_REASON_CODE + 1];
#define longest_float_type_node gnat_std_decls[(int) ADT_longest_float_type]
#define void_type_decl_node gnat_std_decls[(int) ADT_void_type_decl]
#define get_excptr_decl gnat_std_decls[(int) ADT_get_excptr_decl]
#define setjmp_decl gnat_std_decls[(int) ADT_setjmp_decl]
#define longjmp_decl gnat_std_decls[(int) ADT_longjmp_decl]
+#define update_setjmp_buf_decl gnat_std_decls[(int) ADT_update_setjmp_buf_decl]
#define raise_nodefer_decl gnat_std_decls[(int) ADT_raise_nodefer_decl]
-#define raise_constraint_error_decl \
- gnat_std_decls[(int) ADT_raise_constraint_error_decl]
-#define raise_program_error_decl \
- gnat_std_decls[(int) ADT_raise_program_error_decl]
-#define raise_storage_error_decl \
- gnat_std_decls[(int) ADT_raise_storage_error_decl]
+#define begin_handler_decl gnat_std_decls[(int) ADT_begin_handler_decl]
+#define end_handler_decl gnat_std_decls[(int) ADT_end_handler_decl]
/* Routines expected by the gcc back-end. They must have exactly the same
prototype and names as below. */
/* Returns non-zero if we are currently in the global binding level */
-extern int global_bindings_p PARAMS ((void));
-
-/* Returns the list of declarations in the current level. Note that this list
- is in reverse order (it has to be so for back-end compatibility). */
-extern tree getdecls PARAMS ((void));
+extern int global_bindings_p (void);
-/* Nonzero if the current level needs to have a BLOCK made. */
-extern int kept_level_p PARAMS ((void));
+/* Enter and exit a new binding level. */
+extern void gnat_pushlevel (void);
+extern void gnat_poplevel (void);
-/* Enter a new binding level. The input parameter is ignored, but has to be
- specified for back-end compatibility. */
-extern void pushlevel PARAMS ((int));
+/* Set SUPERCONTEXT of the BLOCK for the current binding level to FNDECL
+ and point FNDECL to this BLOCK. */
+extern void set_current_block_context (tree);
-/* Exit a binding level.
- Pop the level off, and restore the state of the identifier-decl mappings
- that were in effect when this level was entered.
+/* Set the jmpbuf_decl for the current binding level to DECL. */
+extern void set_block_jmpbuf_decl (tree);
- If KEEP is nonzero, this level had explicit declarations, so
- and create a "block" (a BLOCK node) for the level
- to record its declarations and subblocks for symbol table output.
-
- If FUNCTIONBODY is nonzero, this level is the body of a function,
- so create a block as if KEEP were set and also clear out all
- label names.
-
- If REVERSE is nonzero, reverse the order of decls before putting
- them into the BLOCK. */
-extern tree poplevel PARAMS ((int,int, int));
+/* Get the setjmp_decl, if any, for the current binding level. */
+extern tree get_block_jmpbuf_decl (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. */
-extern void insert_block PARAMS ((tree));
-
-/* Set the BLOCK node for the innermost scope
- (the one we are currently in). */
-extern void set_block PARAMS ((tree));
+extern void insert_block (tree);
-/* Records a ..._DECL node DECL as belonging to the current lexical scope.
- Returns the ..._DECL node. */
-extern tree pushdecl PARAMS ((tree));
+/* Records a ..._DECL node DECL as belonging to the current lexical scope
+ and uses GNAT_ENTITY for location information. */
+extern void gnat_pushdecl (tree, Entity_Id);
-/* Create the predefined scalar types such as `integer_type_node' needed
- in the gcc back-end and initialize the global binding level. */
-extern void init_decl_processing PARAMS ((void));
-extern void init_gigi_decls PARAMS ((tree, tree));
+extern void gnat_init_stmt_group (void);
+extern void gnat_init_decl_processing (void);
+extern void init_gigi_decls (tree, tree);
+extern void gnat_init_gcc_eh (void);
-/* Return an integer type with the number of bits of precision given by
+/* Return an integer type with the number of bits of precision given by
PRECISION. UNSIGNEDP is nonzero if the type is unsigned; otherwise
it is a signed type. */
-extern tree type_for_size PARAMS ((unsigned, int));
+extern tree gnat_type_for_size (unsigned, int);
/* Return a data type that has machine mode MODE. UNSIGNEDP selects
an unsigned type; otherwise a signed type is returned. */
-extern tree type_for_mode PARAMS ((enum machine_mode, int));
+extern tree gnat_type_for_mode (enum machine_mode, int);
/* Return the unsigned version of a TYPE_NODE, a scalar type. */
-extern tree unsigned_type PARAMS ((tree));
+extern tree gnat_unsigned_type (tree);
/* Return the signed version of a TYPE_NODE, a scalar type. */
-extern tree signed_type PARAMS ((tree));
+extern tree gnat_signed_type (tree);
/* Return a type the same as TYPE except unsigned or signed according to
UNSIGNEDP. */
-extern tree signed_or_unsigned_type PARAMS ((int, tree));
-
-/* This routine is called in tree.c to print an error message for invalid use
- of an incomplete type. */
-extern void incomplete_type_error PARAMS ((tree, tree));
-
-/* This function is called indirectly from toplev.c to handle incomplete
- declarations, i.e. VAR_DECL nodes whose DECL_SIZE is zero. To be precise,
- compile_file in toplev.c makes an indirect call through the function pointer
- incomplete_decl_finalize_hook which is initialized to this routine in
- init_decl_processing. */
-extern void finish_incomplete_decl PARAMS ((tree));
+extern tree gnat_signed_or_unsigned_type (int, tree);
/* Create an expression whose value is that of EXPR,
converted to type TYPE. The TREE_TYPE of the value
is always TYPE. This function implements all reasonable
conversions; callers should filter out those that are
not permitted by the language being compiled. */
-extern tree convert PARAMS ((tree, tree));
+extern tree convert (tree, tree);
/* Routines created solely for the tree translator's sake. Their prototypes
can be changed as desired. */
/* GNAT_ENTITY is a GNAT tree node for a defining identifier.
GNU_DECL is the GCC tree which is to be associated with
GNAT_ENTITY. Such gnu tree node is always an ..._DECL node.
- If NO_CHECK is nonzero, the latter check is suppressed.
+ If NO_CHECK is nonzero, the latter check is suppressed.
If GNU_DECL is zero, a previous association is to be reset. */
-extern void save_gnu_tree PARAMS ((Entity_Id, tree, int));
+extern void save_gnu_tree (Entity_Id, tree, bool);
/* GNAT_ENTITY is a GNAT tree node for a defining identifier.
Return the ..._DECL node that was associated with it. If there is no tree
node associated with GNAT_ENTITY, abort. */
-extern tree get_gnu_tree PARAMS ((Entity_Id));
+extern tree get_gnu_tree (Entity_Id);
/* Return nonzero if a GCC tree has been associated with GNAT_ENTITY. */
-extern int present_gnu_tree PARAMS ((Entity_Id));
+extern bool present_gnu_tree (Entity_Id);
/* Initialize tables for above routines. */
-extern void init_gnat_to_gnu PARAMS ((void));
+extern void init_gnat_to_gnu (void);
/* Given a record type (RECORD_TYPE) and a chain of FIELD_DECL
- nodes (FIELDLIST), finish constructing the record or union type.
- If HAS_REP is nonzero, this record has a rep clause; don't call
+ nodes (FIELDLIST), finish constructing the record or union type.
+ If HAS_REP is true, this record has a rep clause; don't call
layout_type but merely set the size and alignment ourselves.
- If DEFER_DEBUG is nonzero, do not call the debugging routines
+ If DEFER_DEBUG is true, do not call the debugging routines
on this type; it will be done later. */
-extern void finish_record_type PARAMS ((tree, tree, int, int));
+extern void finish_record_type (tree, tree, bool, bool);
/* Returns a FUNCTION_TYPE node. RETURN_TYPE is the type returned by the
subprogram. If it is void_type_node, then we are dealing with a procedure,
otherwise we are dealing with a function. PARAM_DECL_LIST is a list of
PARM_DECL nodes that are the subprogram arguments. CICO_LIST is the
- copy-in/copy-out list to be stored into TYPE_CI_CO_LIST.
- RETURNS_UNCONSTRAINED is nonzero if the function returns an unconstrained
- object. RETURNS_BY_REF is nonzero if the function returns by reference.
- RETURNS_WITH_DSP is nonzero if the function is to return with a
+ copy-in/copy-out list to be stored into TYPE_CI_CO_LIST.
+ RETURNS_UNCONSTRAINED is true if the function returns an unconstrained
+ object. RETURNS_BY_REF is true if the function returns by reference.
+ RETURNS_WITH_DSP is true if the function is to return with a
depressed stack pointer. */
-extern tree create_subprog_type PARAMS ((tree, tree, tree, int, int,
- int));
+extern tree create_subprog_type (tree, tree, tree, bool, bool, bool);
/* Return a copy of TYPE, but safe to modify in any way. */
-extern tree copy_type PARAMS ((tree));
+extern tree copy_type (tree);
/* Return an INTEGER_TYPE of SIZETYPE with range MIN to MAX and whose
TYPE_INDEX_TYPE is INDEX. */
-extern tree create_index_type PARAMS ((tree, tree, tree));
+extern tree create_index_type (tree, tree, tree);
/* Return a TYPE_DECL node. TYPE_NAME gives the name of the type (a character
- string) and TYPE is a ..._TYPE node giving its data type.
- ARTIFICIAL_P is nonzero if this is a declaration that was generated
- by the compiler. DEBUG_INFO_P is nonzero if we need to write debugging
- information about this type. */
-extern tree create_type_decl PARAMS ((tree, tree, struct attrib *,
- int, int));
+ string) and TYPE is a ..._TYPE node giving its data type.
+ ARTIFICIAL_P is true if this is a declaration that was generated
+ by the compiler. DEBUG_INFO_P is true if we need to write debugging
+ information about this type. GNAT_NODE is used for the position of
+ the decl. */
+extern tree create_type_decl (tree, tree, struct attrib *, bool, bool,
+ Node_Id);
/* Returns a GCC VAR_DECL node. VAR_NAME gives the name of the variable.
ASM_NAME is its assembler name (if provided). TYPE is
its data type (a GCC ..._TYPE node). VAR_INIT is the GCC tree for an
optional initial expression; NULL_TREE if none.
- CONST_FLAG is nonzero if this variable is constant.
+ CONST_FLAG is true if this variable is constant.
- PUBLIC_FLAG is nonzero if this definition is to be made visible outside of
+ PUBLIC_FLAG is true if this definition is to be made visible outside of
the current compilation unit. This flag should be set when processing the
- variable definitions in a package specification. EXTERN_FLAG is nonzero
+ variable definitions in a package specification. EXTERN_FLAG is nonzero
when processing an external variable declaration (as opposed to a
definition: no storage is to be allocated for the variable here).
- STATIC_FLAG is only relevant when not at top level. In that case
- it indicates whether to always allocate storage to the variable. */
-extern tree create_var_decl PARAMS ((tree, tree, tree, tree, int,
- int, int, int,
- struct attrib *));
-
-/* Given a DECL and ATTR_LIST, apply the listed attributes. */
-extern void process_attributes PARAMS ((tree, struct attrib *));
-
-/* Obtain any pending elaborations and clear the old list. */
-extern tree get_pending_elaborations PARAMS ((void));
-
-/* Return nonzero if there are pending elaborations. */
-extern int pending_elaborations_p PARAMS ((void));
-/* Save a copy of the current pending elaboration list and make a new
- one. */
-extern void push_pending_elaborations PARAMS ((void));
-
-/* Pop the stack of pending elaborations. */
-extern void pop_pending_elaborations PARAMS ((void));
-
-/* Return the current position in pending_elaborations so we can insert
- elaborations after that point. */
-extern tree get_elaboration_location PARAMS ((void));
+ STATIC_FLAG is only relevant when not at top level. In that case
+ it indicates whether to always allocate storage to the variable.
-/* Insert the current elaborations after ELAB, which is in some elaboration
- list. */
-extern void insert_elaboration_list PARAMS ((tree));
+ GNAT_NODE is used for the position of the decl. */
+extern tree create_var_decl (tree, tree, tree, tree, bool, bool, bool, bool,
+ struct attrib *, Node_Id);
-/* Add some pending elaborations to the current list. */
-extern void add_pending_elaborations PARAMS ((tree, tree));
+/* Given a DECL and ATTR_LIST, apply the listed attributes. */
+extern void process_attributes (tree, struct attrib *);
/* Returns a FIELD_DECL node. FIELD_NAME the field name, FIELD_TYPE is its
type, and RECORD_TYPE is the type of the parent. PACKED is nonzero if
it is the specified size for this field. If POS is nonzero, it is the bit
position. If ADDRESSABLE is nonzero, it means we are allowed to take
the address of this field for aliasing purposes. */
-extern tree create_field_decl PARAMS ((tree, tree, tree, int,
- tree, tree, int));
+extern tree create_field_decl (tree, tree, tree, int, tree, tree, int);
/* Returns a PARM_DECL node. PARAM_NAME is the name of the parameter,
- PARAM_TYPE is its type. READONLY is nonzero if the parameter is
+ PARAM_TYPE is its type. READONLY is true if the parameter is
readonly (either an IN parameter or an address of a pass-by-ref
parameter). */
-extern tree create_param_decl PARAMS ((tree, tree, int));
+extern tree create_param_decl (tree, tree, bool);
/* Returns a FUNCTION_DECL node. SUBPROG_NAME is the name of the subprogram,
ASM_NAME is its assembler name, SUBPROG_TYPE is its type (a FUNCTION_TYPE
node), PARAM_DECL_LIST is the list of the subprogram arguments (a list of
PARM_DECL nodes chained through the TREE_CHAIN field).
- INLINE_FLAG, PUBLIC_FLAG, and EXTERN_FLAG are used to set the appropriate
- fields in the FUNCTION_DECL. */
-extern tree create_subprog_decl PARAMS ((tree, tree, tree, tree, int,
- int, int, struct attrib *));
+ INLINE_FLAG, PUBLIC_FLAG, EXTERN_FLAG, and ATTR_LIST are used to set the
+ appropriate fields in the FUNCTION_DECL. GNAT_NODE gives the location. */
+extern tree create_subprog_decl (tree, tree, tree, tree, bool, bool, bool,
+ struct attrib *, Node_Id);
/* Returns a LABEL_DECL node for LABEL_NAME. */
-extern tree create_label_decl PARAMS ((tree));
+extern tree create_label_decl (tree);
/* Set up the framework for generating code for SUBPROG_DECL, a subprogram
body. This routine needs to be invoked before processing the declarations
appearing in the subprogram. */
-extern void begin_subprog_body PARAMS ((tree));
+extern void begin_subprog_body (tree);
/* Finish the definition of the current subprogram and compile it all the way
- to assembler language output. */
-extern void end_subprog_body PARAMS ((void));
+ to assembler language output. BODY is the tree corresponding to
+ the subprogram. */
+extern void end_subprog_body (tree);
/* Build a template of type TEMPLATE_TYPE from the array bounds of ARRAY_TYPE.
EXPR is an expression that we can use to locate any PLACEHOLDER_EXPRs.
Return a constructor for the template. */
-extern tree build_template PARAMS ((tree, tree, tree));
+extern tree build_template (tree, tree, tree);
/* Build a VMS descriptor from a Mechanism_Type, which must specify
a descriptor type, and the GCC type of an object. Each FIELD_DECL
to print out an error message if the mechanism cannot be applied to
an object of that type and also for the name. */
-extern tree build_vms_descriptor PARAMS ((tree, Mechanism_Type,
- Entity_Id));
+extern tree build_vms_descriptor (tree, Mechanism_Type, Entity_Id);
/* Build a type to be used to represent an aliased object whose nominal
type is an unconstrained array. This consists of a RECORD_TYPE containing
ARRAY_TYPE. If ARRAY_TYPE is that of the unconstrained array, this
is used to represent an arbitrary unconstrained object. Use NAME
as the name of the record. */
-extern tree build_unc_object_type PARAMS ((tree, tree, tree));
+extern tree build_unc_object_type (tree, tree, tree);
/* Update anything previously pointing to OLD_TYPE to point to NEW_TYPE. In
the normal case this is just two adjustments, but we have more to do
if NEW is an UNCONSTRAINED_ARRAY_TYPE. */
-extern void update_pointer_to PARAMS ((tree, tree));
+extern void update_pointer_to (tree, tree);
/* EXP is an expression for the size of an object. If this size contains
discriminant references, replace them with the maximum (if MAX_P) or
- minimum (if ! MAX_P) possible value of the discriminant. */
-extern tree max_size PARAMS ((tree, int));
+ minimum (if !MAX_P) possible value of the discriminant. */
+extern tree max_size (tree, bool);
/* Remove all conversions that are done in EXP. This includes converting
- from a padded type or converting to a left-justified modular type. */
-extern tree remove_conversions PARAMS ((tree));
+ from a padded type or to a left-justified modular type. If TRUE_ADDRESS
+ is true, always return the address of the containing object even if
+ the address is not bit-aligned. */
+extern tree remove_conversions (tree, bool);
/* If EXP's type is an UNCONSTRAINED_ARRAY_TYPE, return an expression that
refers to the underlying array. If its type has TYPE_CONTAINS_TEMPLATE_P,
likewise return an expression pointing to the underlying array. */
-extern tree maybe_unconstrained_array PARAMS ((tree));
+extern tree maybe_unconstrained_array (tree);
-/* Return an expression that does an unchecked converstion of EXPR to TYPE. */
-extern tree unchecked_convert PARAMS ((tree, tree));
+/* Return an expression that does an unchecked converstion of EXPR to TYPE.
+ If NOTRUNC_P is true, truncation operations should be suppressed. */
+extern tree unchecked_convert (tree, tree, bool);
/* Prepare expr to be an argument of a TRUTH_NOT_EXPR or other logical
operation.
The resulting type should always be the same as the input type.
This function is simpler than the corresponding C version since
the only possible operands will be things of Boolean type. */
-extern tree truthvalue_conversion PARAMS((tree));
+extern tree gnat_truthvalue_conversion (tree);
/* Return the base type of TYPE. */
-extern tree get_base_type PARAMS((tree));
+extern tree get_base_type (tree);
/* Likewise, but only return types known at Ada source. */
-extern tree get_ada_base_type PARAMS((tree));
+extern tree get_ada_base_type (tree);
/* EXP is a GCC tree representing an address. See if we can find how
strictly the object at that address is aligned. Return that alignment
strictly the object at that address is aligned. Return that alignment
in bits. If we don't know anything about the alignment, return 0. */
-extern unsigned int known_alignment PARAMS((tree));
+extern unsigned int known_alignment (tree);
/* Make a binary operation of kind OP_CODE. RESULT_TYPE is the type
desired for the result. Usually the operation is to be performed
in that type. For MODIFY_EXPR and ARRAY_REF, RESULT_TYPE may be 0
in which case the type to be used will be derived from the operands. */
-extern tree build_binary_op PARAMS((enum tree_code, tree, tree, tree));
+extern tree build_binary_op (enum tree_code, tree, tree, tree);
/* Similar, but make unary operation. */
-extern tree build_unary_op PARAMS((enum tree_code, tree, tree));
+extern tree build_unary_op (enum tree_code, tree, tree);
/* Similar, but for COND_EXPR. */
-extern tree build_cond_expr PARAMS((tree, tree, tree, tree));
+extern tree build_cond_expr (tree, tree, tree, tree);
/* Build a CALL_EXPR to call FUNDECL with one argument, ARG. Return
the CALL_EXPR. */
-extern tree build_call_1_expr PARAMS((tree, tree));
+extern tree build_call_1_expr (tree, tree);
/* Build a CALL_EXPR to call FUNDECL with two argument, ARG1 & ARG2. Return
the CALL_EXPR. */
-extern tree build_call_2_expr PARAMS((tree, tree, tree));
+extern tree build_call_2_expr (tree, tree, tree);
/* Likewise to call FUNDECL with no arguments. */
-extern tree build_call_0_expr PARAMS((tree));
+extern tree build_call_0_expr (tree);
-/* Call a function FCN that raises an exception and pass the line
- number and file name, if requested. */
-extern tree build_call_raise PARAMS((tree));
+/* Call a function that raises an exception and pass the line number and file
+ name, if requested. MSG says which exception function to call. */
+extern tree build_call_raise (int);
-/* Return a CONSTRUCTOR of TYPE whose list is LIST. */
-extern tree build_constructor PARAMS((tree, tree));
+/* Return a CONSTRUCTOR of TYPE whose list is LIST. This is not the
+ same as build_constructor in the language-independent tree.c. */
+extern tree gnat_build_constructor (tree, tree);
/* Return a COMPONENT_REF to access a field that is given by COMPONENT,
an IDENTIFIER_NODE giving the name of the field, FIELD, a FIELD_DECL,
- for the field, or both. */
-extern tree build_component_ref PARAMS((tree, tree, tree));
+ for the field, or both. Don't fold the result if NO_FOLD_P. */
+extern tree build_component_ref (tree, tree, tree, bool);
/* Build a GCC tree to call an allocation or deallocation function.
If GNU_OBJ is nonzero, it is an object to deallocate. Otherwise,
GNU_SIZE is the size of the object and ALIGN is the alignment.
GNAT_PROC, if present is a procedure to call and GNAT_POOL is the
storage pool to use. If not preset, malloc and free will be used. */
-extern tree build_call_alloc_dealloc PARAMS((tree, tree, int, Entity_Id,
- Entity_Id));
+extern tree build_call_alloc_dealloc (tree, tree, unsigned int, Entity_Id,
+ Entity_Id, Node_Id);
/* Build a GCC tree to correspond to allocating an object of TYPE whose
initial value if INIT, if INIT is nonzero. Convert the expression to
- RESULT_TYPE, which must be some type of pointer. Return the tree.
+ RESULT_TYPE, which must be some type of pointer. Return the tree.
GNAT_PROC and GNAT_POOL optionally give the procedure to call and
- the storage pool to use. */
-extern tree build_allocator PARAMS((tree, tree, tree, Entity_Id,
- Entity_Id));
+ the storage pool to use. GNAT_NODE is used to provide an error
+ location for restriction violations messages. */
+extern tree build_allocator (tree, tree, tree, Entity_Id, Entity_Id, Node_Id);
-/* Fill in a VMS descriptor for EXPR and return a constructor for it.
+/* Fill in a VMS descriptor for EXPR and return a constructor for it.
GNAT_FORMAL is how we find the descriptor record. */
-extern tree fill_vms_descriptor PARAMS((tree, Entity_Id));
+extern tree fill_vms_descriptor (tree, Entity_Id);
/* Indicate that we need to make the address of EXPR_NODE and it therefore
- should not be allocated in a register. Return 1 if successful. */
-extern int mark_addressable PARAMS((tree));
+ should not be allocated in a register. Return true if successful. */
+extern bool gnat_mark_addressable (tree);
+
+/* Implementation of the builtin_function langhook. */
+extern tree builtin_function (const char *, tree, int, enum built_in_class,
+ const char *, tree);
+
+/* This function is called by the front end to enumerate all the supported
+ modes for the machine. We pass a function which is called back with
+ the following integer parameters:
+
+ FLOAT_P nonzero if this represents a floating-point mode
+ COMPLEX_P nonzero is this represents a complex mode
+ COUNT count of number of items, nonzero for vector mode
+ PRECISION number of bits in data representation
+ MANTISSA number of bits in mantissa, if FP and known, else zero.
+ SIZE number of bits used to store data
+ ALIGN number of bits to which mode is aligned. */
+extern void enumerate_modes (void (*f) (int, int, int, int, int, int,
+ unsigned int));
+
+/* These are temporary function to deal with recent GCC changes related to
+ FP type sizes and precisions. */
+extern int fp_prec_to_size (int);
+extern int fp_size_to_prec (int);
/* These functions return the basic data type sizes and related parameters
about the target machine. */
-extern Pos get_target_bits_per_unit PARAMS ((void));
-extern Pos get_target_bits_per_word PARAMS ((void));
-extern Pos get_target_char_size PARAMS ((void));
-extern Pos get_target_wchar_t_size PARAMS ((void));
-extern Pos get_target_short_size PARAMS ((void));
-extern Pos get_target_int_size PARAMS ((void));
-extern Pos get_target_long_size PARAMS ((void));
-extern Pos get_target_long_long_size PARAMS ((void));
-extern Pos get_target_float_size PARAMS ((void));
-extern Pos get_target_double_size PARAMS ((void));
-extern Pos get_target_long_double_size PARAMS ((void));
-extern Pos get_target_pointer_size PARAMS ((void));
-extern Pos get_target_maximum_alignment PARAMS ((void));
-extern Boolean get_target_no_dollar_in_label PARAMS ((void));
-extern Nat get_float_words_be PARAMS ((void));
-extern Nat get_words_be PARAMS ((void));
-extern Nat get_bytes_be PARAMS ((void));
-extern Nat get_bits_be PARAMS ((void));
-extern Nat get_strict_alignment PARAMS ((void));
+extern Pos get_target_bits_per_unit (void);
+extern Pos get_target_bits_per_word (void);
+extern Pos get_target_char_size (void);
+extern Pos get_target_wchar_t_size (void);
+extern Pos get_target_short_size (void);
+extern Pos get_target_int_size (void);
+extern Pos get_target_long_size (void);
+extern Pos get_target_long_long_size (void);
+extern Pos get_target_float_size (void);
+extern Pos get_target_double_size (void);
+extern Pos get_target_long_double_size (void);
+extern Pos get_target_pointer_size (void);
+extern Pos get_target_maximum_alignment (void);
+extern Nat get_float_words_be (void);
+extern Nat get_words_be (void);
+extern Nat get_bytes_be (void);
+extern Nat get_bits_be (void);
+extern Nat get_strict_alignment (void);
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