Index: alpha.c
===================================================================
--- alpha.c	(revision 162825)
+++ alpha.c	(working copy)
@@ -5950,6 +5950,10 @@
 		    integer_type_node);
   DECL_FIELD_CONTEXT (ofs) = record;
   DECL_CHAIN (ofs) = space;
+  /* ??? This is a hack, __offset is marked volatile to prevent
+     DCE that confuses stdarg optimization and results in
+     gcc.c-torture/execute/stdarg-1.c failure.  See PR 41089.  */
+  TREE_THIS_VOLATILE (ofs) = 1;

   base = build_decl (BUILTINS_LOCATION,
 		     FIELD_DECL, get_identifier ("__base"),