whoops, didn't mean to remove this

llvm-svn: 15157

llvm/lib/CodeGen/LiveIntervalAnalysis.cpp

@@ -550,6 +550,8 @@ void LiveIntervals::joinIntervalsInMachineBB(MachineBasicBlock *MBB) {
       assert(IntA.reg == regA && IntB.reg == regB &&
              "Register mapping is horribly broken!");
 
+      DEBUG(std::cerr << "\t\tInspecting " << IntA << " and " << IntB << ": ");
+
       // If two intervals contain a single value and are joined by a copy, it
       // does not matter if the intervals overlap, they can always be joined.
       bool TriviallyJoinable =