Recommit "[PowerPC] Fix assert from machine verify pass that unmatched register class about fcmp selection in fast-isel"

This re-commit r350685.

Differential Revision: https://reviews.llvm.org/D55686


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350799 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed