gcc/testsuite/gcc.dg/pr42611.c

   1 /* PR other/42611 */
   2 /* { dg-do compile } */
   3 /* { dg-options "" } */
   4
   5 #define L \
   6   (sizeof (__SIZE_TYPE__) == sizeof (void *) ? __INTPTR_MAX__ \
   7   : sizeof (__SIZE_TYPE__) == 1 ? __SCHAR_MAX__                         \
   8   : sizeof (__SIZE_TYPE__) == sizeof (short) ? __SHRT_MAX__             \
   9   : sizeof (__SIZE_TYPE__) == sizeof (int) ? __INT_MAX__                \
  10   : sizeof (__SIZE_TYPE__) == sizeof (long) ? __LONG_MAX__              \
  11   : sizeof (__SIZE_TYPE__) == sizeof (long long) ? __LONG_LONG_MAX__    \
  12   : __INTMAX_MAX__)
  13 struct S { int a; char b[L]; }; /* { dg-error "type .struct S. is too large" } */
  14
  15 void
  16 foo (void)
  17 {
  18   struct S s;   /* { dg-warning "size of .s. \[0-9\]+ bytes exceeds maximum object size \[0-9\]+" } */
  19   asm volatile ("" : : "r" (&s));
  20 }