Renumber SSE execution domains for better code size.

SSEDomainFix will collapse to the domain with the lower number when it has a
choice. The SSEPackedSingle domain often has smaller instructions, so prefer
that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99952 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed