use cached value

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107000 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/ScalarReplAggregates.cpp b/lib/Transforms/Scalar/ScalarReplAggregates.cpp
index cae21e9..d539f2b 100644
--- a/lib/Transforms/Scalar/ScalarReplAggregates.cpp
+++ b/lib/Transforms/Scalar/ScalarReplAggregates.cpp
@@ -965,7 +965,7 @@
       isSafeGEP(GEPI, AI, GEPOffset, Info);
       if (!Info.isUnsafe)
         isSafeForScalarRepl(GEPI, AI, GEPOffset, Info);
-    } else if (MemIntrinsic *MI = dyn_cast<MemIntrinsic>(UI)) {
+    } else if (MemIntrinsic *MI = dyn_cast<MemIntrinsic>(User)) {
       ConstantInt *Length = dyn_cast<ConstantInt>(MI->getLength());
       if (Length)
         isSafeMemAccess(AI, Offset, Length->getZExtValue(), 0,