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

     1  foo (a, b)
     2  {
     3    if (a < 0)
     4      goto ret1;
     5    if (a == 0)
     6      return 2;
     7    return 3;
     8   ret1:
     9    return 1;
    10  }
    11