gcc/testsuite/gcc.dg/sso-9.c

   1 /* Test support of scalar_storage_order attribute */
   2
   3 /* { dg-do compile } */
   4
   5 #include <stdarg.h>
   6
   7 int x;
   8
   9 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
  10 struct __attribute__((scalar_storage_order("big-endian"))) Rec
  11 {
  12   va_list v;
  13 };
  14 #else
  15 struct __attribute__((scalar_storage_order("little-endian"))) Rec
  16 {
  17   va_list v;
  18 };
  19 #endif
  20
  21 void foo (int i, ...)
  22 {
  23   struct Rec a;
  24   va_start (a.v, i);
  25   a.v = 0, x = va_arg (a.v, int); /* { dg-error "type|reverse storage order" } */
  26   va_end (a.v);
  27 }