Add that this preserves some analyses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45573 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/MachineLICM.cpp b/lib/CodeGen/MachineLICM.cpp
index e6b9c76e9cd3c58691051b55e17e3e094fcec3f5..94e10611226d84e7535fd0fd064edc46b82bb5dd 100644 (file)
--- a/lib/CodeGen/MachineLICM.cpp
+++ b/lib/CodeGen/MachineLICM.cpp
@@ -53,10 +53,12 @@ namespace {
     /// FIXME: Loop preheaders?
     ///
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
-      MachineFunctionPass::getAnalysisUsage(AU);
       AU.setPreservesCFG();
       AU.addRequired<MachineLoopInfo>();
       AU.addRequired<MachineDominatorTree>();
+      AU.addPreserved<MachineLoopInfo>();
+      AU.addPreserved<MachineDominatorTree>();
+      MachineFunctionPass::getAnalysisUsage(AU);
     }
   private:
     /// VisitAllLoops - Visit all of the loops in depth first order and try to