misched: Debug output fix. Use an always valid iterator.
llvm-svn: 168767
diff --git a/llvm/lib/CodeGen/MachineScheduler.cpp b/llvm/lib/CodeGen/MachineScheduler.cpp
index 8d43360..2fe72bb 100644
--- a/llvm/lib/CodeGen/MachineScheduler.cpp
+++ b/llvm/lib/CodeGen/MachineScheduler.cpp
@@ -533,7 +533,7 @@
placeDebugValues();
DEBUG({
- unsigned BBNum = top()->getParent()->getNumber();
+ unsigned BBNum = begin()->getParent()->getNumber();
dbgs() << "*** Final schedule for BB#" << BBNum << " ***\n";
dumpSchedule();
dbgs() << '\n';