va_list on PowerPC

[David Edelsohn]

rs6000.c:rs6000_build_va_list()

  f_gpr = build_decl (FIELD_DECL, get_identifier ("gpr"), 
                      unsigned_char_type_node);
  f_fpr = build_decl (FIELD_DECL, get_identifier ("fpr"), 
                      unsigned_char_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"),
                      ptr_type_node);

David