diff options
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopRotation.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopRotation.cpp b/llvm/lib/Transforms/Scalar/LoopRotation.cpp index 807d463abb8..2a7b06c6c3f 100644 --- a/llvm/lib/Transforms/Scalar/LoopRotation.cpp +++ b/llvm/lib/Transforms/Scalar/LoopRotation.cpp @@ -63,6 +63,11 @@ namespace { AU.addRequiredID(LoopSimplifyID); AU.addPreservedID(LoopSimplifyID); AU.addPreserved<DominatorTree>(); + // Request DominanceFrontier now, even though Loop Rotate does + // not use it. This allows Pass Manager to schedule Dominance + // Frontier early enough such that one LPPassManager can handle + // loop rotate as well as licm pass. + AU.addRequired<DominanceFrontier>(); AU.addPreserved<DominanceFrontier>(); } |
