Finish moving TargetRegisterInfo::isVirtualRegister() and friends to llvm::Register as started by r367614. NFC

llvm-svn: 367633
diff --git a/llvm/lib/Target/PowerPC/PPCReduceCRLogicals.cpp b/llvm/lib/Target/PowerPC/PPCReduceCRLogicals.cpp
index 8eaa6df..f2c7191 100644
--- a/llvm/lib/Target/PowerPC/PPCReduceCRLogicals.cpp
+++ b/llvm/lib/Target/PowerPC/PPCReduceCRLogicals.cpp
@@ -535,7 +535,7 @@
                                                      unsigned &Subreg,
                                                      MachineInstr *&CpDef) {
   Subreg = -1;
-  if (!TargetRegisterInfo::isVirtualRegister(Reg))
+  if (!Register::isVirtualRegister(Reg))
     return nullptr;
   MachineInstr *Copy = MRI->getVRegDef(Reg);
   CpDef = Copy;
@@ -543,7 +543,7 @@
     return Copy;
   unsigned CopySrc = Copy->getOperand(1).getReg();
   Subreg = Copy->getOperand(1).getSubReg();
-  if (!TargetRegisterInfo::isVirtualRegister(CopySrc)) {
+  if (!Register::isVirtualRegister(CopySrc)) {
     const TargetRegisterInfo *TRI = &TII->getRegisterInfo();
     // Set the Subreg
     if (CopySrc == PPC::CR0EQ || CopySrc == PPC::CR6EQ)