re PR ipa/65588 (lto1: internal compiler error: Segmentation fault)

	PR ipa/65588
	* symtab.c (symtab_node::get_partitioning_class): Register vars
	are duplicated.
	* varpool.c (symbol_table::output_variables) Do not assemble unefined
	decls for non-symbols.

From-SVN: r221745

gcc/ChangeLog

+2015-03-27  Jan Hubicka  <hubicka@ucw.cz>
+
+	PR ipa/65588
+	* symtab.c (symtab_node::get_partitioning_class): Register vars
+	are duplicated.
+	* varpool.c (symbol_table::output_variables) Do not assemble unefined
+	decls for non-symbols.
+
 2015-03-27  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR target/65248

gcc/symtab.c

@@ -1689,6 +1689,8 @@ symtab_node::get_partitioning_class (void)
          objects that can not be duplicated across partitions.  */
       if (DECL_IN_CONSTANT_POOL (decl))
 	return SYMBOL_DUPLICATE;
+      if (DECL_HARD_REGISTER (decl))
+	return SYMBOL_DUPLICATE;
       gcc_checking_assert (vnode->definition);
     }
   /* Functions that are cloned may stay in callgraph even if they are unused.

gcc/varpool.c

@@ -737,7 +737,9 @@ symbol_table::output_variables (void)
   timevar_push (TV_VAROUT);
 
   FOR_EACH_VARIABLE (node)
-    if (!node->definition)
+    if (!node->definition
+	&& !DECL_HAS_VALUE_EXPR_P (node->decl)
+ 	&& !DECL_HARD_REGISTER (node->decl))
       assemble_undefined_decl (node->decl);
   FOR_EACH_DEFINED_VARIABLE (node)
     {