Fix a bug when unswitching on partial LIV for SwitchInst

Summary: Fix a bug when unswitching on partial LIV for SwitchInst.

Reviewers: hfinkel, efriedma, sanjoy

Reviewed By: sanjoy

Subscribers: david2050, mzolotukhin, llvm-commits

Differential Revision: https://reviews.llvm.org/D29107

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296363 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed