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

     1  foo (a, p)
     2       int *p;
     3  {
     4    int old, new, i;
     5  
     6    old = 0;
     7    for (i = 1; i < 100; i++)
     8      {
     9        new = p[i];
    10        if (new < old)
    11  	a++;
    12        old = new;
    13        if (old == 0)
    14  	return 0;
    15      }
    16    return a;
    17  }