From: Dale Johannesen <dalej@apple.com>
Date: Fri, 18 May 2007 01:28:58 +0000 (+0000)
Subject: Remove some unneeded branches.  (spotted by Evan, thanks)
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1cf08c1d6d59cbeead241f44d898eaa2a3bf1717;p=oota-llvm.git

Remove some unneeded branches.  (spotted by Evan, thanks)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37198 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp
index 7b4aaae4824..d8ec3406921 100644
--- a/lib/CodeGen/BranchFolding.cpp
+++ b/lib/CodeGen/BranchFolding.cpp
@@ -595,6 +595,7 @@ bool BranchFolder::TailMergeBlocks(MachineFunction &MF) {
     // Reinsert an unconditional branch if needed.
     // The 1 below can be either an original single predecessor, or a result
     // of removing blocks in TryMergeBlocks.
+    PredBB = prior(I);      // this may have been changed in TryMergeBlocks
     if (MergePotentials.size()==1 && 
         (MergePotentials.begin())->second != PredBB)
       FixTail((MergePotentials.begin())->second, I, TII);