| 12
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 
 | // RUN: %clang_cc1 %s -emit-llvm -o - 
struct tree_common {};
struct tree_int_cst {
 struct tree_common common;
  struct tree_int_cst_lowhi {
    unsigned long long low;
    long long high;
  } int_cst;
};
enum XXX { yyy };
struct tree_function_decl {
  struct tree_common common;
  long long locus, y;
  __extension__ enum  XXX built_in_class : 2;
};
union tree_node {
  struct tree_int_cst int_cst;
  struct tree_function_decl function_decl;
};
void foo (union tree_node * decl) {
  decl->function_decl.built_in_class != 0;
}
 |