[SeparateConstOffsetFromGEP] set PreservesCFG flag

SeparateConstOffsetFromGEP does not change the shape of the control flow graph.

llvm-svn: 227704

diff --git a/llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp b/llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp
index 34994d2..47ffd23 100644 (file)
--- a/llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp
+++ b/llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp
@@ -314,6 +314,7 @@ class SeparateConstOffsetFromGEP : public FunctionPass {
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequired<DataLayoutPass>();
     AU.addRequired<TargetTransformInfoWrapperPass>();
+    AU.setPreservesCFG();
   }
 
   bool doInitialization(Module &M) override {