re PR lto/61012 (lto1: errors during merging of translation units (error:…

re PR lto/61012 (lto1: errors during merging of translation units (error: variable ‘link’ redeclared as function))


	PR lto/61012
	* lto-symtab.c (lto_symtab_merge_decls_1): Do not ICE on undefined externals
	mixed with variables.

From-SVN: r210740

gcc/lto/ChangeLog

+2014-05-17  Jan Hubicka  <hubicka@ucw.cz>
+
+	PR lto/61012
+	* lto-symtab.c (lto_symtab_merge_decls_1): Do not ICE on undefined externals
+	mixed with variables.
+
 2014-05-17  Trevor Saunders  <tsaunders@mozilla.com>
 
 	* lto-tree.h: Don't use variable_size gty attribute.

gcc/lto/lto-symtab.c

@@ -447,7 +447,12 @@ lto_symtab_merge_decls_1 (symtab_node *first)
      cgraph or a varpool node.  */
   if (!prevailing)
     {
-      prevailing = first;
+      for (prevailing = first;
+	   prevailing; prevailing = prevailing->next_sharing_asm_name)
+	if (lto_symtab_symbol_p (prevailing))
+	  break;
+      if (!prevailing)
+	return;
       /* For variables chose with a priority variant with vnode
 	 attached (i.e. from unit where external declaration of
 	 variable is actually used).