commit b76247b8b1534f42d6fcaa2290c8e4e1baf5443a
author Devang Patel <dpatel@apple.com> Thu Jul 03 05:55:03 2008 +0000
committer Devang Patel <dpatel@apple.com> Thu Jul 03 05:55:03 2008 +0000
tree 8ef4e385d29ce19011d7af07cb40b7db53a58ab7
parent 2ebc11ac6d19ec806da97bd4f2d49a27932d09fb

LoopUnswitch does not preserve dominator info in all cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53085 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/LoopUnswitch.cpp

diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index b6c6e03..f57b7bb 100644
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -112,8 +112,9 @@
       AU.addPreserved<LoopInfo>();
       AU.addRequiredID(LCSSAID);
       AU.addPreservedID(LCSSAID);
-      AU.addPreserved<DominatorTree>();
-      AU.addPreserved<DominanceFrontier>();
+      // FIXME: Loop Unswitch does not preserve dominator info in all cases.
+      // AU.addPreserved<DominatorTree>();
+      // AU.addPreserved<DominanceFrontier>();
     }
 
   private: