From c9ab9ae440a8066b2c2b85b157b1fdadcf09916a Mon Sep 17 00:00:00 2001 From: obrien Date: Fri, 1 Feb 2002 18:16:02 +0000 Subject: Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST. --- contrib/gcc/langhooks.h | 164 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 164 insertions(+) create mode 100644 contrib/gcc/langhooks.h (limited to 'contrib/gcc/langhooks.h') diff --git a/contrib/gcc/langhooks.h b/contrib/gcc/langhooks.h new file mode 100644 index 0000000..81ae71b --- /dev/null +++ b/contrib/gcc/langhooks.h @@ -0,0 +1,164 @@ +/* The lang_hooks data structure. + Copyright 2001 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC 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. + +GNU CC 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 GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#ifndef GCC_LANG_HOOKS_H +#define GCC_LANG_HOOKS_H + +/* A print hook for print_tree (). */ +typedef void (*lang_print_tree_hook) PARAMS ((FILE *, tree, int indent)); + +/* The following hooks are documented in langhooks.c. Must not be + NULL. */ + +struct lang_hooks_for_tree_inlining +{ + union tree_node *(*walk_subtrees) PARAMS ((union tree_node **, int *, + union tree_node *(*) + (union tree_node **, + int *, void *), + void *, void *)); + int (*cannot_inline_tree_fn) PARAMS ((union tree_node **)); + int (*disregard_inline_limits) PARAMS ((union tree_node *)); + union tree_node *(*add_pending_fn_decls) PARAMS ((void *, + union tree_node *)); + int (*tree_chain_matters_p) PARAMS ((union tree_node *)); + int (*auto_var_in_fn_p) PARAMS ((union tree_node *, union tree_node *)); + union tree_node *(*copy_res_decl_for_inlining) PARAMS ((union tree_node *, + union tree_node *, + union tree_node *, + void *, int *, + void *)); + int (*anon_aggr_type_p) PARAMS ((union tree_node *)); + int (*start_inlining) PARAMS ((union tree_node *)); + void (*end_inlining) PARAMS ((union tree_node *)); +}; + +/* The following hooks are used by tree-dump.c. */ + +struct lang_hooks_for_tree_dump +{ + /* Dump language-specific parts of tree nodes. Returns non-zero if it + does not want the usual dumping of the second argument. */ + int (*dump_tree) PARAMS ((void *, tree)); + + /* Determine type qualifiers in a language-specific way. */ + int (*type_quals) PARAMS ((tree)); +}; + +/* 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; + + /* The first callback made to the front end, for simple + initialization needed before any calls to decode_option. */ + void (*init_options) PARAMS ((void)); + + /* Function called with an option vector as argument, to decode a + single option (typically starting with -f or -W or +). It should + return the number of command-line arguments it uses if it handles + the option, or 0 and not complain if it does not recognise the + option. If this function returns a negative number, then its + absolute value is the number of command-line arguments used, but, + in addition, no language-independent option processing should be + done for this option. */ + int (*decode_option) PARAMS ((int, char **)); + + /* Called when all command line options have been parsed. Should do + any required consistency checks, modifications etc. Complex + initialization should be left to the "init" callback, since GC + and the identifier hashes are set up between now and then. */ + void (*post_options) PARAMS ((void)); + + /* Called after post_options, to initialize the front end. The main + input filename is passed, which may be NULL; the front end should + return the original filename (e.g. foo.i -> foo.c). Return NULL + to indicate a serious error of some sort; in that case no + compilation is performed, and the finish hook is called + immediately. */ + const char * (*init) PARAMS ((const char *)); + + /* Called at the end of compilation, as a finalizer. */ + void (*finish) PARAMS ((void)); + + /* Called immediately after parsing to clear the binding stack. */ + void (*clear_binding_stack) PARAMS ((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) PARAMS ((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) PARAMS ((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) PARAMS ((rtx, tree)); + + /* Hook called by staticp for language-specific tree codes. */ + int (*staticp) PARAMS ((tree)); + + /* Nonzero if TYPE_READONLY and TREE_READONLY should always be honored. */ + bool honor_readonly; + + /* The front end can add its own statistics to -fmem-report with + this hook. It should output to stderr. */ + void (*print_statistics) PARAMS ((void)); + + /* Called by print_tree when there is a tree of class 'x' that it + doesn't know how to display. */ + lang_print_tree_hook print_xnode; + + /* Called to print language-dependent parts of a class 'd', class + 't', and IDENTIFIER_NODE nodes. */ + lang_print_tree_hook print_decl; + lang_print_tree_hook print_type; + lang_print_tree_hook print_identifier; + + /* Set yydebug for bison-based parsers, when -dy is given on the + command line. By default, if the parameter is non-zero, prints a + warning that the front end does not use such a parser. */ + void (*set_yydebug) PARAMS ((int)); + + struct lang_hooks_for_tree_inlining tree_inlining; + + struct lang_hooks_for_tree_dump tree_dump; + + /* 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 */ -- cgit v1.1