commit 969f07a4949251017f5c3c1bbe9b768ab16de3b8
author Devang Patel <dpatel@apple.com> Tue Oct 09 21:31:36 2007 +0000
committer Devang Patel <dpatel@apple.com> Tue Oct 09 21:31:36 2007 +0000
tree d40c52cf289398f576d3aaec759a8e0bb94d9716
parent 8bde4ede6fe9dd6e492e8a37d7322982feb5cfa2

Do not walk invalid iterator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42812 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/LoopUnswitch.cpp

diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index 01e4f25..0c35b11 100644
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -632,8 +632,8 @@
   
   DominanceFrontier::DomSetType &DFSet = DFI->second;
   for (DominanceFrontier::DomSetType::iterator DI = DFSet.begin(),
-         DE = DFSet.end(); DI != DE; ++DI) {
-    BasicBlock *B = *DI;
+         DE = DFSet.end(); DI != DE;) {
+    BasicBlock *B = *DI++;
     if (L->contains(B))
       continue;