* config/rs6000/rs6000.md: Document why a pattern is not

[pf3gnuchains/gcc-fork.git] / gcc / langhooks.h

diff --git a/gcc/langhooks.h b/gcc/langhooks.h
index 195446c..8ad1c47 100644 (file)
--- a/gcc/langhooks.h
+++ b/gcc/langhooks.h
@@ -1,5 +1,5 @@
 /* The lang_hooks data structure.
-   Copyright 2001, 2002, 2003 Free Software Foundation, Inc.
+   Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -47,7 +47,7 @@ struct lang_hooks_for_tree_inlining
   bool (*var_mod_type_p) (tree);
   int (*start_inlining) (tree);
   void (*end_inlining) (tree);
-  tree (*convert_parm_for_inlining) (tree, tree, tree);
+  tree (*convert_parm_for_inlining) (tree, tree, tree, int);
   int (*estimate_num_insns) (tree);
 };
 
@@ -151,6 +151,11 @@ struct lang_hooks_for_types
      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);
+
+  /* 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
+     user-specified type, such as Ada, this should be set to TRUE.  */
+  bool hash_types;
 };
 
 /* Language hooks related to decls and the symbol table.  */
@@ -280,7 +285,7 @@ struct lang_hooks
 
   /* 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 (*expand_expr) (tree, rtx, enum machine_mode, int, rtx *);
 
   /* Prepare expr to be an argument of a TRUTH_NOT_EXPR or other logical
      operation.
@@ -375,6 +380,9 @@ struct lang_hooks
      types in C++.  */
   const char *(*decl_printable_name) (tree decl, int verbosity);
 
+  /* 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 *);
 
@@ -388,6 +396,9 @@ struct lang_hooks
      uninitialized based on DECL_INITIAL.  */
   bool (*decl_uninit) (tree);
 
+  /* Update lang specific fields after duplicating function body.  */
+  void (*update_decl_after_saving) (tree, void *);
+
   /* Pointers to machine-independent attribute tables, for front ends
      using attribs.c.  If one is NULL, it is ignored.  Respectively, a
      table of attributes specific to the language, a table of