gcc/testsuite/algol68/execute/trimmer-2.a68

# { dg-options "-fstropping=upper" }  #
BEGIN [2:4]INT arr := []INT(1,2,3)[@2];
      ASSERT (arr[3] = 2 AND arr[4] = 3);
      []INT jorl = arr[2:3];
      ASSERT (LWB jorl = 1 AND UPB jorl = 2);
      ASSERT (jorl[1] = 1 AND jorl [2] = 2)
END