Otherwise, assembler (gas) fails to assemble them with error message "operation
combines symbols in different segments". This is because MC computes
pc_rel entries with subtract expression between labels from different sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200373 91177308-0d34-0410-b5e6-96231b3b80d8