misched: bug in debug output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150043 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp
index 241293001cd04e9c18f5803e15aa0209d095af7f..113668f94c92211b4c9b36def5808e2c0e2cd9fd 100644 (file)
--- a/lib/CodeGen/MachineScheduler.cpp
+++ b/lib/CodeGen/MachineScheduler.cpp
@@ -293,8 +293,10 @@ bool MachineScheduler::runOnMachineFunction(MachineFunction &mf) {
         continue;
       }
       DEBUG(dbgs() << "MachineScheduling " << MF->getFunction()->getName()
-            << ":BB#" << MBB->getNumber() << "\n  From: " << *I << "    To: "
-            << *RegionEnd << " Remaining: " << RemainingCount << "\n");
+            << ":BB#" << MBB->getNumber() << "\n  From: " << *I << "    To: ";
+            if (RegionEnd != MBB->end()) dbgs() << *RegionEnd;
+            else dbgs() << "End";
+            dbgs() << " Remaining: " << RemainingCount << "\n");
 
       // Inform ScheduleDAGInstrs of the region being scheduled. It calls back
       // to our Schedule() method.