modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/signext2.c (about)

     1  long long
     2  foo (a)
     3       int a;
     4  {
     5    return a;
     6  }
     7  
     8  main ()
     9  {
    10    printf ("%d\n", (int) (foo (-1) >> 32));
    11  }