[PM] Add LoopVectorize to the default module pipeline

LV no longer "requires" LCSSA and LoopSimplify, and instead forms
them internally as required. So, there's nothing preventing it from
being enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292464 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed