Unbreak VC++ build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34917 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetData.cpp b/lib/Target/TargetData.cpp
index dfa6d2a..b1f0807 100644
--- a/lib/Target/TargetData.cpp
+++ b/lib/Target/TargetData.cpp
@@ -400,7 +400,7 @@
     unsigned char Alignment;
     Size = getTypeSize(ATy->getElementType());
     Alignment = getABITypeAlignment(ATy->getElementType());
-    unsigned AlignedSize = (Size + Alignment - 1)/Alignment*Alignment;
+    uint64_t AlignedSize = (Size + Alignment - 1)/Alignment*Alignment;
     return AlignedSize*ATy->getNumElements();
   }
   case Type::StructTyID: {