llvm/test/CodeGen/X86/vec_select.ll: Fix failure on xmm-less hosts, to add -mattr=+sse2.

FIXME: Should this be tested with both +avx and -avx,+sse2?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162983 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed