gcc/testsuite/gcc.dg/pr14475.c

   1 /* This used to ICE because there was no null check in
   2    check_bitfield_type_and_width. */
   3
   4 struct tree_common
   5 {
   6   enum tree_code code : 8; /* { dg-error "ISO C forbids forward references to" "forward ref" } */
   7   /* { dg-error "type of bit-field .code. is a GCC extension" "extension" { target *-*-* } .-1 } */
   8   /* { dg-warning "narrower than values of its type" "narrower" { target *-*-* } .-2 } */
   9   /* { dg-error "incomplete type" "incomplete" { target *-*-* } .-3 } */
  10 };