Fix failure on builder clang-cmake-mips where it was printing a 32-bit address

Fix failure on builder clang-cmake-mips where it was printing a 32-bit address
incorrectly because it came from an expression using S.getAddress() which always
returns a 64-bit value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234251 91177308-0d34-0410-b5e6-96231b3b80d8