Prune a LegacyDivergenceAnalysis and MachineLoopInfo include each

Now X86ISelLowering doesn't depend on many IR analyses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375320 91177308-0d34-0410-b5e6-96231b3b80d8
26 files changed