Patch from David Taylor.

* config/rs6000/rs6000.c (rs6000_build_va_list): Give the two
bytes of padding in the __va_list_tag structure a name (reserved).

From-SVN: r67684

gcc/ChangeLog

+2003-06-19  David Taylor  <dtaylor@emc.com>
+
+	* config/rs6000/rs6000.c (rs6000_build_va_list): Give the two
+	bytes of padding in the __va_list_tag structure a name (reserved).
+
 2003-06-09  Jason Merrill  <jason@redhat.com>
 
 	* fold-const.c (operand_equal_p): Handle ADDR_EXPR and TRUTH_NOT_EXPR.

gcc/config/rs6000/rs6000.c

@@ -4180,7 +4180,7 @@ setup_incoming_varargs (cum, mode, type, pretend_size, no_rtl)
 tree
 rs6000_build_va_list ()
 {
-  tree f_gpr, f_fpr, f_ovf, f_sav, record, type_decl;
+  tree f_gpr, f_fpr, f_res, f_ovf, f_sav, record, type_decl;
 
   /* For AIX, prefer 'char *' because that's what the system
      header files like.  */
@@ -4194,6 +4194,10 @@ rs6000_build_va_list ()
 		      unsigned_char_type_node);
   f_fpr = build_decl (FIELD_DECL, get_identifier ("fpr"), 
 		      unsigned_char_type_node);
+  /* Give the two bytes of padding a name, so that -Wpadded won't warn on
+     every user file.  */
+  f_res = build_decl (FIELD_DECL, get_identifier ("reserved"),
+		      short_unsigned_type_node);
   f_ovf = build_decl (FIELD_DECL, get_identifier ("overflow_arg_area"),
 		      ptr_type_node);
   f_sav = build_decl (FIELD_DECL, get_identifier ("reg_save_area"),
@@ -4201,6 +4205,7 @@ rs6000_build_va_list ()
 
   DECL_FIELD_CONTEXT (f_gpr) = record;
   DECL_FIELD_CONTEXT (f_fpr) = record;
+  DECL_FIELD_CONTEXT (f_res) = record;
   DECL_FIELD_CONTEXT (f_ovf) = record;
   DECL_FIELD_CONTEXT (f_sav) = record;
 
@@ -4208,7 +4213,8 @@ rs6000_build_va_list ()
   TYPE_NAME (record) = type_decl;
   TYPE_FIELDS (record) = f_gpr;
   TREE_CHAIN (f_gpr) = f_fpr;
-  TREE_CHAIN (f_fpr) = f_ovf;
+  TREE_CHAIN (f_fpr) = f_res;
+  TREE_CHAIN (f_res) = f_ovf;
   TREE_CHAIN (f_ovf) = f_sav;
 
   layout_type (record);