Watch out for empty BB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78562 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/Thumb2SizeReduction.cpp b/lib/Target/ARM/Thumb2SizeReduction.cpp
index 9a56f2fe86ccca580bd167057f01448e17c5a1b4..e3b29a4fb8672ca514081bf3ddf9c58d052b7995 100644 (file)
--- a/lib/Target/ARM/Thumb2SizeReduction.cpp
+++ b/lib/Target/ARM/Thumb2SizeReduction.cpp
@@ -343,7 +343,7 @@ bool Thumb2SizeReduce::ReduceMBB(MachineBasicBlock &MBB) {
   }
 
   MachineBasicBlock::iterator MII = MBB.begin(), E = MBB.end();
-  MachineBasicBlock::iterator NextMII = next(MII);
+  MachineBasicBlock::iterator NextMII;
   for (; MII != E; MII = NextMII) {
     NextMII = next(MII);