gcc/testsuite/gcc.dg/sso-11.c

   1 /* Test support of scalar_storage_order attribute */
   2
   3 /* { dg-do compile } */
   4
   5 struct __attribute__((scalar_storage_order("big-endian"))) S1
   6 {
   7   int i;
   8 };
   9
  10 struct __attribute__((scalar_storage_order("little-endian"))) S2
  11 {
  12   int i;
  13 };
  14
  15 extern int foo (void *);
  16
  17 int incompatible_call (int which, struct S1 *s1, struct S2 *s2)
  18 {
  19   if (which == 1) return foo (s1); else foo (s2); /* { dg-warning "incompatible scalar storage order" } */
  20 }
  21
  22 void incompatible_assign (struct S1 *s1, struct S2 *s2)
  23 {
  24   void *p1, *p2;
  25   p1 = s1, p2 = s2; /* { dg-warning "incompatible scalar storage order" } */
  26 }
  27
  28 void incompatible_init (struct S1 *s1, struct S2 *s2)
  29 {
  30   void *p1 = s1, *p2 = s2; /* { dg-warning "incompatible scalar storage order" } */
  31 }
  32
  33 void *incompatible_return (int which, struct S1 *s1, struct S2 *s2)
  34 {
  35   if (which == 1) return s1; else return s2; /* { dg-warning "incompatible scalar storage order" } */
  36 }