fix another bozo bug

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79313 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp
index f261674..854f266 100644 (file)
--- a/lib/CodeGen/MachineBasicBlock.cpp
+++ b/lib/CodeGen/MachineBasicBlock.cpp
@@ -139,8 +139,8 @@ bool MachineBasicBlock::isOnlyReachableByFallthrough() const {
   
   // If there isn't exactly one predecessor, it can't be a fall through.
   const_pred_iterator PI = pred_begin(), PI2 = PI;
-  ++PI;
-  if (PI != pred_end())
+  ++PI2;
+  if (PI2 != pred_end())
     return false;
   
   // The predecessor has to be immediately before this block.