```
 public static int condgt(int a, int b) {
     if (b > 0) {
       if (b > -10) {                 // redundant test
         return 0xdd;
       }else {
         return 0xff;                // dead code
       }
     }else {
       return 0xee;
     }
   }
```

For the test case above, "b > -10" could be removed safely as it's always true.

So far c2 did related work for BoolTest::eq but remains some other cases like ne, le, ge, lt, gt.