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| author | Owen Anderson <resistor@mac.com> | 2008-10-03 06:55:35 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2008-10-03 06:55:35 +0000 |
| commit | a90793b431458c1bac4c7267946738968c4cdf58 (patch) | |
| tree | c173ec6719013abbd607f7bb553c6b68ce91783a /lib/Transforms | |
| parent | 91b6f97ce4273fee5516692e3f27cd76d67986fc (diff) | |
| download | llvm-a90793b431458c1bac4c7267946738968c4cdf58.tar.gz llvm-a90793b431458c1bac4c7267946738968c4cdf58.tar.bz2 llvm-a90793b431458c1bac4c7267946738968c4cdf58.tar.xz | |
SplitBlock should only attempt to update LoopInfo if it is actually being used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56994 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Utils/BasicBlockUtils.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/Transforms/Utils/BasicBlockUtils.cpp b/lib/Transforms/Utils/BasicBlockUtils.cpp index a98e1356ad..1b018cbdf6 100644 --- a/lib/Transforms/Utils/BasicBlockUtils.cpp +++ b/lib/Transforms/Utils/BasicBlockUtils.cpp @@ -240,16 +240,15 @@ BasicBlock *llvm::SplitEdge(BasicBlock *BB, BasicBlock *Succ, Pass *P) { /// the loop info is updated. /// BasicBlock *llvm::SplitBlock(BasicBlock *Old, Instruction *SplitPt, Pass *P) { - - LoopInfo &LI = P->getAnalysis<LoopInfo>(); BasicBlock::iterator SplitIt = SplitPt; while (isa<PHINode>(SplitIt)) ++SplitIt; BasicBlock *New = Old->splitBasicBlock(SplitIt, Old->getName()+".split"); // The new block lives in whichever loop the old one did. - if (Loop *L = LI.getLoopFor(Old)) - L->addBasicBlockToLoop(New, LI.getBase()); + if (LoopInfo* LI = P->getAnalysisToUpdate<LoopInfo>()) + if (Loop *L = LI->getLoopFor(Old)) + L->addBasicBlockToLoop(New, LI->getBase()); if (DominatorTree *DT = P->getAnalysisToUpdate<DominatorTree>()) { |