Revert "Fix MO's analyzePhysReg, it was confusing sub- and super-registers. Problem pointed out by Michael Hordijk."

I mistakenly committed the patch for D6629, and was trying to commit another. Reverting until it gets proper signoff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244121 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed