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).

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@67684 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ef0c632..57fc01b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+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.

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 1fa2ede..c9b5849 100644 (file)
--- a/gcc/config/rs6000/rs6000.c
+++ b/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);