Fix Another Cast

Properly cast code to eliminate cast-away-const errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172468 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Hexagon/HexagonISelLowering.cpp b/lib/Target/Hexagon/HexagonISelLowering.cpp
index 16cec5c..4c27d35 100644
--- a/lib/Target/Hexagon/HexagonISelLowering.cpp
+++ b/lib/Target/Hexagon/HexagonISelLowering.cpp
@@ -1017,7 +1017,8 @@
   Result = DAG.getTargetGlobalAddress(GV, dl, getPointerTy(), Offset);
 
   HexagonTargetObjectFile &TLOF =
-    (HexagonTargetObjectFile&)getObjFileLowering();
+    static_cast<HexagonTargetObjectFile &>(
+      const_cast<TargetLoweringObjectFile &>(getObjFileLowering()));
   if (TLOF.IsGlobalInSmallSection(GV, getTargetMachine())) {
     return DAG.getNode(HexagonISD::CONST32_GP, dl, getPointerTy(), Result);
   }