[LPM] A terribly simple fix to a terribly complex bug: PR18773.

[oota-llvm.git] / lib / Transforms / Utils / LCSSA.cpp

diff --git a/lib/Transforms/Utils/LCSSA.cpp b/lib/Transforms/Utils/LCSSA.cpp
index 5959324da6c574aea950dca1d6be99a810d65711..ba3b46898d51bb5ec757b5c73255c83cfbb177da 100644 (file)
--- a/lib/Transforms/Utils/LCSSA.cpp
+++ b/lib/Transforms/Utils/LCSSA.cpp
@@ -31,6 +31,7 @@
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/LoopPass.h"
 #include "llvm/Analysis/ScalarEvolution.h"
 #include "llvm/IR/Constants.h"
@@ -262,6 +263,7 @@ struct LCSSA : public FunctionPass {
     AU.addRequired<DominatorTreeWrapperPass>();
     AU.addRequired<LoopInfo>();
     AU.addPreservedID(LoopSimplifyID);
+    AU.addPreserved<AliasAnalysis>();
     AU.addPreserved<ScalarEvolution>();
   }