ARM: yes it can (as of r218789)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218801 91177308-0d34-0410-b5e6-96231b3b80d8
[x86] Sort the ISA-specific RUN lines for vector-sext.ll to go from
oldest to newest. This makes more sense to me and is more consistent
with other tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218802 91177308-0d34-0410-b5e6-96231b3b80d8