modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/execute/921016-1.c (about)

     1  main()
     2  {
     3  int j=1081;
     4  struct
     5  {
     6  signed int m:11;
     7  }l;
     8  if((l.m=j)==j)abort();
     9  exit(0);
    10  }