Tighten up the AnalysisUsage of lots of passes, primarily to correctly indicate whether or not they invalidate the CFGA

llvm-svn: 2386

1 files changed, 4 insertions, 0 deletions

diff --git a/llvm/lib/Transforms/Scalar/DecomposeMultiDimRefs.cpp b/llvm/lib/Transforms/Scalar/DecomposeMultiDimRefs.cpp
index 78dcfd50dd6..f901a29015d 100644
--- a/llvm/lib/Transforms/Scalar/DecomposeMultiDimRefs.cpp
+++ b/llvm/lib/Transforms/Scalar/DecomposeMultiDimRefs.cpp
@@ -175,6 +175,10 @@ namespace {
     virtual bool runOnFunction(Function *F) {
       return doDecomposeMultiDimRefs(F);
     }
+
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.preservesCFG();
+    }
   };
 }