re PR sanitizer/58420 (internal compiler error: in ubsan_type_descriptor, at ubsan.c:280)

	PR sanitizer/58420
	* ubsan.c (ubsan_type_descriptor): Handle IDENTIFIER_NODEs
	when determining the type name.

From-SVN: r202887

gcc/ChangeLog

+2013-09-25  Marek Polacek  <polacek@redhat.com>
+
+	PR sanitizer/58420
+	* ubsan.c (ubsan_type_descriptor): Handle IDENTIFIER_NODEs
+	when determining the type name.
+
 2013-09-24  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	* config/sh/sh.md: Fix formatting.

gcc/ubsan.c

@@ -259,11 +259,18 @@ ubsan_type_descriptor (tree type)
   unsigned short tkind, tinfo;
 
   /* At least for INTEGER_TYPE/REAL_TYPE/COMPLEX_TYPE, this should work.
-     ??? For e.g. type_unsigned_for (type), the TYPE_NAME would be NULL.  */
+     For e.g. type_unsigned_for (type) or bit-fields, the TYPE_NAME
+     would be NULL.  */
   if (TYPE_NAME (type) != NULL)
-    tname = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
+    {
+      if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
+	tname = IDENTIFIER_POINTER (TYPE_NAME (type));
+      else
+	tname = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
+    }
   else
     tname = "<unknown>";
+
   if (TREE_CODE (type) == INTEGER_TYPE)
     {
       /* For INTEGER_TYPE, this is 0x0000.  */