72nd Cygnus<->FSF merge

From-SVN: r9737

gcc/cp/ChangeLog

+Wed May 17 01:43:58 1995  Jason Merrill  <jason@phydeaux.cygnus.com>
+
+	* class.c (finish_struct): Don't complain about a class with no
+	user-defined constructors but with a member that has no default
+	constructor, as this is OK for aggregates.
+
+	* expr.c (cplus_expand_expr, NEW_EXPR): If this is an explicit
+	constructor call, mark slot addressable.
+
 Tue May 16 18:37:51 1995  Douglas Rupp  (drupp@cs.washington.edu)
 
 	* g++.c: Changed WINNT to _WIN32.

gcc/cp/class.c

@@ -3287,6 +3287,8 @@ finish_struct (t, list_of_fieldlists, warn_anon)
 		      && ! TYPE_HAS_DEFAULT_CONSTRUCTOR (type))
 		    {
 		      cant_have_default_ctor = 1;
+#if 0
+		      /* This is wrong for aggregates.  */
 		      if (! TYPE_HAS_CONSTRUCTOR (t))
 			{
 			  if (DECL_NAME (x))
@@ -3296,6 +3298,7 @@ finish_struct (t, list_of_fieldlists, warn_anon)
 			  cp_pedwarn_at ("in class without a constructor",
 					 x);
 			}
+#endif
 		    }
 		}
 	      if (DECL_INITIAL (x) != NULL_TREE)

gcc/cp/expr.c

@@ -107,6 +107,7 @@ cplus_expand_expr (exp, target, tmode, modifier)
 	    type = TYPE_POINTER_TO (type);
 	    /* Don't clobber a value that might be part of a default
 	       parameter value.  */
+	    mark_addressable (slot);
 	    if (TREE_PERMANENT (args))
 	      args = tree_cons (0, build1 (ADDR_EXPR, type, slot),
 				TREE_CHAIN (args));