re PR debug/47209 (ICE: SIGSEGV in should_emit_struct_debug (dwarf2out.c:627)…

re PR debug/47209 (ICE: SIGSEGV in should_emit_struct_debug (dwarf2out.c:627) with -f{no-,}emit-struct-debug-{baseonly,reduced} -g)

2011-01-12  Kai Tietz  <kai.tietz@onevision.com>

	PR debug/47209
	* dwarfout2.c (should_emit_struct_debug): Use TYPE_MAIN_VARIANT
	of type.

2011-01-12  Kai Tietz  <kai.tietz@onevision.com>

	PR debug/47209
	* g++.dg/debug/pr47209.C: New.

From-SVN: r168718

gcc/ChangeLog

+2011-01-12  Kai Tietz  <kai.tietz@onevision.com>
+
+	PR debug/47209
+	* dwarfout2.c (should_emit_struct_debug): Use TYPE_MAIN_VARIANT
+	of type.
+
 2011-01-12  Jan Hubicka  <jh@suse.cz>
 
 	PR driver/47244

gcc/dwarf2out.c

@@ -619,7 +619,7 @@ should_emit_struct_debug (tree type, enum debug_info_usage usage)
   if (criterion == DINFO_STRUCT_FILE_ANY)
     return DUMP_GSTRUCT (type, usage, criterion, generic, false, true);
 
-  type_decl = TYPE_STUB_DECL (type);
+  type_decl = TYPE_STUB_DECL (TYPE_MAIN_VARIANT (type));
 
   if (criterion == DINFO_STRUCT_FILE_SYS && DECL_IN_SYSTEM_HEADER (type_decl))
     return DUMP_GSTRUCT (type, usage, criterion, generic, false, true);

gcc/testsuite/ChangeLog

+2011-01-12  Kai Tietz  <kai.tietz@onevision.com>
+
+	PR debug/47209
+	* g++.dg/debug/pr47209.C: New.
+
 2011-01-12  Richard Guenther  <rguenther@suse.de>
 
 	PR lto/47259

gcc/testsuite/g++.dg/debug/pr47209.C

+// { dg-do compile }
+// { dg-options "-femit-struct-debug-baseonly" }
+struct A
+{
+  void foo ();
+};
+
+struct B : A
+{
+  typedef const A base;
+  using base::foo;
+};