If Select pseudo instruction doesn't have use SR, then
CMP instructions are being marked as dead and later can be
removed by MachineCSE pass. This leads to incorrect code
generation.
Differential Revision: https://reviews.llvm.org/D32473
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301372 91177308-0d34-0410-b5e6-96231b3b80d8
Vadzim Dambrouski