re PR debug/82144 (ICE in add_dwarf_attr with alignas)

2017-09-25  Richard Biener  <rguenther@suse.de>

	PR middle-end/82144
	* dwarf2out.c (gen_enumeration_type_die): Do not add alignment
	attribute for incomplete types nor twice for complete ones.

From-SVN: r253134

gcc/ChangeLog

+2017-09-25  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/82144
+	* dwarf2out.c (gen_enumeration_type_die): Do not add alignment
+	attribute for incomplete types nor twice for complete ones.
+
 2017-09-24  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/82267

gcc/dwarf2out.c

@@ -21246,8 +21246,6 @@ gen_enumeration_type_die (tree type, dw_die_ref context_die)
   else
     add_AT_flag (type_die, DW_AT_declaration, 1);
 
-  add_alignment_attribute (type_die, type);
-
   add_pubtype (type, type_die);
 
   return type_die;