modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/940611-1.c (about)

     1  f ()
     2  {
     3    do
     4  L:;
     5    while (0);
     6    do
     7      ;
     8    while (0);
     9    goto L;
    10  }