[RISCV] Codegen support for memory operations on global addresses

Differential Revision: https://reviews.llvm.org/D39103

llvm-svn: 317688
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.h b/llvm/lib/Target/RISCV/RISCVISelLowering.h
index 9fed48f..2bd5717 100644
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.h
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.h
@@ -56,6 +56,7 @@
                                          Type *Ty) const override {
     return true;
   }
+  SDValue lowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
 };
 }