* 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 199b79f..8ad1c47 100644 (file)
--- a/gcc/langhooks.h
+++ b/gcc/langhooks.h
@@ -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.  */
@@ -189,9 +194,6 @@ struct lang_hooks_for_decls
   /* Returns the chain of decls so far in the current scope level.  */
   tree (*getdecls) (void);
 
-  /* Returns a chain of TYPE_DECLs for built-in types.  */
-  tree (*builtin_type_decls) (void);
-
   /* Returns true when we should warn for an unused global DECL.
      We will already have checked that it has static binding.  */
   bool (*warn_unused_global) (tree);
@@ -394,6 +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