src/third_party/llvm-project/clang/test/CodeGenCXX/2007-04-05-PackedBitFieldsSmall.cpp

// RUN: %clang_cc1 -emit-llvm %s -o -


#ifdef PACKED
// This is an example where size of Packed struct is smaller then
// the size of bit field type.
#define P __attribute__((packed))
#else
#define P
#endif

struct P M_Packed {
  unsigned long long X:50;
  unsigned Y:2;
};

struct M_Packed sM_Packed;

int testM_Packed (void) {
  struct M_Packed x;
  return (0 != x.Y);
}

int testM_Packed2 (void) {
  struct M_Packed x;
  return (0 != x.X);
}