re PR debug/86452 (ICE in force_decl_die, at dwarf2out.c:25922 with -g1 and -flto)

2018-07-13  Richard Biener  <rguenther@suse.de>

	PR debug/86452
	* dwarf2out.c (gen_type_die_with_usage): Use scope_die_for
	instead of get_context_die.

From-SVN: r262624

gcc/ChangeLog

+2018-07-13  Richard Biener  <rguenther@suse.de>
+
+	PR debug/86452
+	* dwarf2out.c (gen_type_die_with_usage): Use scope_die_for
+	instead of get_context_die.
+
 2018-07-13  Kugan Vivekanandarajah  <kuganv@linaro.org>
 	    Richard Biener  <rguenther@suse.de>
 

gcc/dwarf2out.c

@@ -25388,11 +25388,8 @@ gen_type_die_with_usage (tree type, dw_die_ref context_die,
      generate debug info for the typedef.  */
   if (is_naming_typedef_decl (TYPE_NAME (type)))
     {
-      /* Use the DIE of the containing namespace as the parent DIE of
-         the type description DIE we want to generate.  */
-      if (DECL_CONTEXT (TYPE_NAME (type))
-	  && TREE_CODE (DECL_CONTEXT (TYPE_NAME (type))) == NAMESPACE_DECL)
-	context_die = get_context_die (DECL_CONTEXT (TYPE_NAME (type)));
+      /* Give typedefs the right scope.  */
+      context_die = scope_die_for (type, context_die);
 
       gen_decl_die (TYPE_NAME (type), NULL, NULL, context_die);
       return;