1 files changed, 19 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/LoopPassManager.cpp b/llvm/lib/Analysis/LoopPassManager.cpp
index 76210fa89c0..8bac19a5821 100644
--- a/llvm/lib/Analysis/LoopPassManager.cpp
+++ b/llvm/lib/Analysis/LoopPassManager.cpp
@@ -8,6 +8,12 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Analysis/LoopPassManager.h"
+#include "llvm/Analysis/BasicAliasAnalysis.h"
+#include "llvm/Analysis/GlobalsModRef.h"
+#include "llvm/Analysis/LoopInfo.h"
+#include "llvm/Analysis/ScalarEvolution.h"
+#include "llvm/Analysis/ScalarEvolutionAliasAnalysis.h"
+#include "llvm/IR/Dominators.h"
 
 using namespace llvm;
 
@@ -18,3 +24,16 @@ template class AnalysisManager<Loop>;
 template class InnerAnalysisManagerProxy<LoopAnalysisManager, Function>;
 template class OuterAnalysisManagerProxy<FunctionAnalysisManager, Loop>;
 }
+
+PreservedAnalyses llvm::getLoopPassPreservedAnalyses() {
+  PreservedAnalyses PA;
+  PA.preserve<DominatorTreeAnalysis>();
+  PA.preserve<LoopAnalysis>();
+  PA.preserve<ScalarEvolutionAnalysis>();
+  // TODO: What we really want to do here is preserve an AA category, but that
+  // concept doesn't exist yet.
+  PA.preserve<BasicAA>();
+  PA.preserve<GlobalsAA>();
+  PA.preserve<SCEVAA>();
+  return PA;
+}