commit 4ae131e5da124bb5f7455133fefb1fa3b336192b
author Chris Lattner <sabre@nondot.org> Sun Aug 01 09:51:42 2004 +0000
committer Chris Lattner <sabre@nondot.org> Sun Aug 01 09:51:42 2004 +0000
tree c0583af45ea03597d977d089e1d4a2522aa6feb7
parent 33c23ddf8a170f9576e4b6de840e8ad1e5fcdfd3

Dereferencing end() is bad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15402 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/BranchFolding.cpp

diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp
index 0a6bd39..af2b725 100644
--- a/lib/CodeGen/BranchFolding.cpp
+++ b/lib/CodeGen/BranchFolding.cpp
@@ -96,7 +96,7 @@
 
   // If BB falls through into Old, insert an unconditional branch to New.
   MachineFunction::iterator BBSucc = BB; ++BBSucc;
-  if (&*BBSucc == Old)
+  if (BBSucc != BB->getParent()->end() && &*BBSucc == Old)
     TII.insertGoto(*BB, *New);
 
   std::vector<MachineBasicBlock*> Succs(BB->succ_begin(), BB->succ_end());