langhooks.h: New file.

* langhooks.h: New file.
* Makefile.in (OBJS): Added langhooks.o.
(c-lang.o): Depend on langhooks.h.
(c-common.o): Don't depend on tree-inline.h.
(tree-inline.o): Depend on toplev.h.
(langhooks.o): New rule.
* c-common.c: Don't include tree-inline.h.
(c_mark_lang_decl): Mark argument c as unused.
(c_common_lang_init): Don't initialize hooks here.
* c-lang.c: Include langhooks.h, then override some macros.
(lang_hooks): Initialize with macros in langhooks.h.
(c_init): Don't initialize hooks here.
* toplev.c (struct lang_hooks_for_tree_inlining): New struct.
(struct lang_hooks): Add tree_inlining.  Refer to langhooks.h.
* tree-inline.c: Include toplev.h.  Don't define hook variables.
* tree-inline.h: Don't define hook types nor declare hook
variables.  Move macros to...
* langhooks.c: ... new file, as functions.  Adjust all callers.

From-SVN: r46096

1 files changed, 29 insertions, 0 deletions

diff --git a/gcc/toplev.h b/gcc/toplev.h
index 860d49bd9d7..72fa2fd640a 100644
--- a/gcc/toplev.h
+++ b/gcc/toplev.h
@@ -115,7 +115,31 @@ extern void check_global_declarations   PARAMS ((union tree_node **, int));
 extern const char *progname;
 extern const char *dump_base_name;
 
+/* 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 *));
+};
+
 /* Language-specific hooks.  Can be NULL unless otherwise specified.  */
+
 struct lang_hooks
 {
   /* Called first, to initialize the front end.  */
@@ -141,6 +165,11 @@ struct lang_hooks
 
   /* Called when all command line options have been processed.  */
   void (*post_options) PARAMS ((void));
+
+  struct lang_hooks_for_tree_inlining tree_inlining;
+
+  /* Whenever you add entries here, make sure you adjust langhooks.h
+     and langhooks.c accordingly.  */
 };
 
 /* Each front end provides its own.  */