[PM] Disable the loop vectorizer from the new PM's pipeline as it
currenty relies on the old PM's dependency system forming LCSSA.

The new PM will require a different design for this, and for now this is
causing most of the issues I'm currently seeing in testing. I'd like to
get to a testable baseline and then work on re-enabling things one at
a time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290644 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed