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authorDevang Patel <dpatel@apple.com>2007-07-30 20:22:53 +0000
committerDevang Patel <dpatel@apple.com>2007-07-30 20:22:53 +0000
commitd9a6dcba9f394078cff11c8f09a48f2c072de18d (patch)
treef66ecb87b4ed2e61eb03d6239317621efd812148
parent96b651c627160e1ea0f1bb86d352d697e6c1972d (diff)
Loop Rotation pass preserves dominator tree and frontier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40603 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/Transforms/Scalar/LoopRotation.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/LoopRotation.cpp b/lib/Transforms/Scalar/LoopRotation.cpp
index d35a8edd3c..a9c3fb9533 100644
--- a/lib/Transforms/Scalar/LoopRotation.cpp
+++ b/lib/Transforms/Scalar/LoopRotation.cpp
@@ -62,6 +62,8 @@ namespace {
AU.addPreserved<LoopInfo>();
AU.addRequiredID(LoopSimplifyID);
AU.addPreservedID(LoopSimplifyID);
+ AU.addPreserved<DominatorTree>();
+ AU.addPreserved<DominanceFrontier>();
}
// Helper functions