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

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37198 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2007-05-18 01:28:58 +00:00
parent e5e7ce458a
commit 1cf08c1d6d
1 changed files with 1 additions and 0 deletions
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lib/CodeGen/BranchFolding.cpp
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@ -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);