* alias.c:: Include langhooks.h.

	* emit-rtl.c: Similarly.
	* toplev.c: Similarly.
	* tree-inline.c: Similarly.
	* langhooks-def.h: New, the old langhooks.h.  Give the default
	hooks a common prefix.
	* langhooks.h: Contents extracted from toplev.h.
	* toplev.h: Move langhook stuff to langhooks.h.
	* langhooks.c: Give default hooks a common prefix.

	* c-lang.c: Include langhooks-def.h.
	* ada/misc.c: Similarly.
	* cp/cp-lang.c: Similarly.
	* f/com.c: Similarly.
	* java/lang.c: Similarly.
	* objc/objc-act.c: Similarly.

	* Makefile.in: Update.
	* ada/Makefile.in: Similarly.
	* cp/Make-lang.in: Similarly.
	* f/Make-lang.in: Similarly.
	* java/Make-lang.in: Similarly.
	* objc/Make-lang.in: Similarly.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@46813 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 109 insertions, 0 deletions

diff --git a/gcc/langhooks-def.h b/gcc/langhooks-def.h
new file mode 100644
index 00000000000..0e615cb5bca
--- /dev/null
+++ b/gcc/langhooks-def.h
@@ -0,0 +1,109 @@
+/* Default macros to initialize the lang_hooks data structure.
+   Copyright 2001 Free Software Foundation, Inc.
+   Contributed by Alexandre Oliva  <aoliva@redhat.com>
+
+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_DEF_H
+#define GCC_LANG_HOOKS_DEF_H
+
+/* Provide a hook routine for alias sets that always returns 1.  This is
+   used by languages that haven't deal with alias sets yet.  */
+extern HOST_WIDE_INT hook_get_alias_set_0	PARAMS ((tree));
+
+/* Note to creators of new hooks:
+
+   The macros in this file should NOT be surrounded by a
+   #ifdef...#endif pair, since this file declares the defaults.  Each
+   front end overrides any hooks it wishes to, in the file containing
+   its struct lang_hooks, AFTER including this file.
+
+   Prefix all default hooks with "lhd_".  */
+
+/* See langhooks.h for the definition and documentation of each hook.  */
+
+extern void lhd_do_nothing PARAMS ((void));
+extern int lhd_decode_option PARAMS ((int, char **));
+extern HOST_WIDE_INT lhd_get_alias_set PARAMS ((tree));
+extern void lhd_clear_binding_stack PARAMS ((void));
+
+/* Declarations of default tree inlining hooks.  */
+tree lhd_tree_inlining_walk_subtrees		PARAMS ((tree *, int *,
+							 walk_tree_fn,
+							 void *, void *));
+int lhd_tree_inlining_cannot_inline_tree_fn	PARAMS ((tree *));
+int lhd_tree_inlining_disregard_inline_limits	PARAMS ((tree));
+tree lhd_tree_inlining_add_pending_fn_decls	PARAMS ((void *, tree));
+int lhd_tree_inlining_tree_chain_matters_p	PARAMS ((tree));
+int lhd_tree_inlining_auto_var_in_fn_p		PARAMS ((tree, tree));
+tree lhd_tree_inlining_copy_res_decl_for_inlining PARAMS ((tree, tree,
+							   tree, void *,
+							   int *, void *));
+int lhd_tree_inlining_anon_aggr_type_p		PARAMS ((tree));
+
+#define LANG_HOOKS_INIT			lhd_do_nothing
+#define LANG_HOOKS_FINISH		lhd_do_nothing
+#define LANG_HOOKS_CLEAR_BINDING_STACK	lhd_clear_binding_stack
+#define LANG_HOOKS_INIT_OPTIONS		lhd_do_nothing
+#define LANG_HOOKS_DECODE_OPTION	lhd_decode_option
+#define LANG_HOOKS_POST_OPTIONS		lhd_do_nothing
+#define LANG_HOOKS_GET_ALIAS_SET	lhd_get_alias_set
+#define LANG_HOOKS_HONOR_READONLY	false
+
+/* Tree inlining hooks.  */
+#define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES lhd_tree_inlining_walk_subtrees
+#define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
+  lhd_tree_inlining_cannot_inline_tree_fn
+#define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
+  lhd_tree_inlining_disregard_inline_limits
+#define LANG_HOOKS_TREE_INLINING_ADD_PENDING_FN_DECLS \
+  lhd_tree_inlining_add_pending_fn_decls
+#define LANG_HOOKS_TREE_INLINING_TREE_CHAIN_MATTERS_P \
+  lhd_tree_inlining_tree_chain_matters_p
+#define LANG_HOOKS_TREE_INLINING_AUTO_VAR_IN_FN_P \
+  lhd_tree_inlining_auto_var_in_fn_p
+#define LANG_HOOKS_TREE_INLINING_COPY_RES_DECL_FOR_INLINING \
+  lhd_tree_inlining_copy_res_decl_for_inlining
+#define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
+  lhd_tree_inlining_anon_aggr_type_p
+
+#define LANG_HOOKS_TREE_INLINING_INITIALIZER { \
+  LANG_HOOKS_TREE_INLINING_WALK_SUBTREES, \
+  LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN, \
+  LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS, \
+  LANG_HOOKS_TREE_INLINING_ADD_PENDING_FN_DECLS, \
+  LANG_HOOKS_TREE_INLINING_TREE_CHAIN_MATTERS_P, \
+  LANG_HOOKS_TREE_INLINING_AUTO_VAR_IN_FN_P, \
+  LANG_HOOKS_TREE_INLINING_COPY_RES_DECL_FOR_INLINING, \
+  LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
+} \
+
+/* The whole thing.  The structure is defined in toplev.h.  */
+#define LANG_HOOKS_INITIALIZER { \
+  LANG_HOOKS_INIT, \
+  LANG_HOOKS_FINISH, \
+  LANG_HOOKS_CLEAR_BINDING_STACK, \
+  LANG_HOOKS_INIT_OPTIONS, \
+  LANG_HOOKS_DECODE_OPTION, \
+  LANG_HOOKS_POST_OPTIONS, \
+  LANG_HOOKS_GET_ALIAS_SET, \
+  LANG_HOOKS_HONOR_READONLY, \
+  LANG_HOOKS_TREE_INLINING_INITIALIZER \
+}
+
+#endif /* GCC_LANG_HOOKS_DEF_H */