Cross Reference: /src/external/mit/isl/dist/test_inputs/max.pip

      1  1.1  mrg 0 3
      2  1.1  mrg 
      3  1.1  mrg -1
      4  1.1  mrg 
      5  1.1  mrg 4 5
      6  1.1  mrg 1 -1  0  1  0
      7  1.1  mrg 1  0 -1  1  0
      8  1.1  mrg 1 -1  3 -2 12
      9  1.1  mrg 1  2 -1 -1  3
     10