llvm-project/llvm/test/C++Frontend/2005-02-14-BitFieldOffset.cpp

// RUN: %llvmgxx %s -S -o - | not grep 'int 6'

struct QVectorTypedData {
    int size;
    unsigned int sharable : 1;
    unsigned short array[1];
};

void foo(QVectorTypedData *X) {
  X->array[0] = 123;
}