Re: Prune BLOCK_VARs lists in free_lang_data

[Jan Hubicka]

Hi,
here is updated patch. It has same effect as the former version.

Bootstrapped/regtested x86_64-linux, OK?

Honza

        * tree-ssa-live.c (remove_unused_scope_block_p): Also remove
        reudndant typedefs.
Index: tree-ssa-live.c
===================================================================
--- tree-ssa-live.c     (revision 232466)
+++ tree-ssa-live.c     (working copy)
@@ -470,7 +470,8 @@ remove_unused_scope_block_p (tree scope,
         types in different orders depending on whether debug
         information is being generated.  */
 
-      else if (TREE_CODE (*t) == TYPE_DECL
+      else if ((TREE_CODE (*t) == TYPE_DECL
+               && !DECL_IGNORED_P (*t) && !is_redundant_typedef (*t))
               || debug_info_level == DINFO_LEVEL_NORMAL
               || debug_info_level == DINFO_LEVEL_VERBOSE)
        ;