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| author | Dan Gohman <gohman@apple.com> | 2010-07-26 17:45:33 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-07-26 17:45:33 +0000 |
| commit | d2d975233d3f56a0aec3ee3965c1cdb7a6ba1dbd (patch) | |
| tree | e9f3eb4d847f12bb41b873eb0e7ecaf33f8d3d78 /lib/VMCore/Dominators.cpp | |
| parent | e96a6fe351b0cf8da5dc7eaddd44618bbdd25fd3 (diff) | |
| download | external_llvm-d2d975233d3f56a0aec3ee3965c1cdb7a6ba1dbd.zip external_llvm-d2d975233d3f56a0aec3ee3965c1cdb7a6ba1dbd.tar.gz external_llvm-d2d975233d3f56a0aec3ee3965c1cdb7a6ba1dbd.tar.bz2 | |
Avoid copying and recopying a std::set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109405 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/VMCore/Dominators.cpp')
| -rw-r--r-- | lib/VMCore/Dominators.cpp | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/lib/VMCore/Dominators.cpp b/lib/VMCore/Dominators.cpp index 8a33eb0..8a68b4e 100644 --- a/lib/VMCore/Dominators.cpp +++ b/lib/VMCore/Dominators.cpp @@ -140,12 +140,8 @@ void DominanceFrontier::splitBlock(BasicBlock *NewBB) { // NewBBSucc inherits original NewBB frontier. DominanceFrontier::iterator NewBBI = find(NewBB); - if (NewBBI != end()) { - DominanceFrontier::DomSetType NewBBSet = NewBBI->second; - DominanceFrontier::DomSetType NewBBSuccSet; - NewBBSuccSet.insert(NewBBSet.begin(), NewBBSet.end()); - addBasicBlock(NewBBSucc, NewBBSuccSet); - } + if (NewBBI != end()) + addBasicBlock(NewBBSucc, NewBBI->second); // If NewBB dominates NewBBSucc, then DF(NewBB) is now going to be the // DF(NewBBSucc) without the stuff that the new block does not dominate |