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Loop Rotation pass preserves dominator tree and frontier.

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llvm-svn: 40603
This commit is contained in:
Devang Patel 2007-07-30 20:22:53 +00:00
parent 2e8466c22a
commit 84144042b2
1 changed files with 2 additions and 0 deletions
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2
lib/Transforms/Scalar/LoopRotation.cpp
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@ -62,6 +62,8 @@ namespace {
AU.addPreserved<LoopInfo>(); AU.addPreserved<LoopInfo>();
AU.addRequiredID(LoopSimplifyID); AU.addRequiredID(LoopSimplifyID);
AU.addPreservedID(LoopSimplifyID); AU.addPreservedID(LoopSimplifyID);
AU.addPreserved<DominatorTree>();
AU.addPreserved<DominanceFrontier>();
} }
// Helper functions // Helper functions