Remove the MachineMove class.

It was just a less powerful and more confusing version of
MCCFIInstruction. A side effect is that, since MCCFIInstruction uses
dwarf register numbers, calls to getDwarfRegNum are pushed out, which
should allow further simplifications.

I left the MachineModuleInfo::addFrameMove interface unchanged since
this patch was already fairly big.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181680 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/XCore/MCTargetDesc/XCoreMCTargetDesc.cpp

@@ -51,13 +51,13 @@ static MCSubtargetInfo *createXCoreMCSubtargetInfo(StringRef TT, StringRef CPU,
   return X;
 }
 
-static MCAsmInfo *createXCoreMCAsmInfo(StringRef TT) {
+static MCAsmInfo *createXCoreMCAsmInfo(const MCRegisterInfo &MRI,
+                                       StringRef TT) {
   MCAsmInfo *MAI = new XCoreMCAsmInfo(TT);
 
   // Initial state of the frame pointer is SP.
-  MachineLocation Dst(MachineLocation::VirtualFP);
-  MachineLocation Src(XCore::SP, 0);
-  MAI->addInitialFrameState(0, Dst, Src);
+  MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(0, XCore::SP, 0);
+  MAI->addInitialFrameState(Inst);
 
   return MAI;
 }

lib/Target/XCore/XCoreTargetMachine.cpp

@@ -33,6 +33,7 @@ XCoreTargetMachine::XCoreTargetMachine(const Target &T, StringRef TT,
     FrameLowering(Subtarget),
     TLInfo(*this),
     TSInfo(*this) {
+  initAsmInfo();
 }
 
 namespace {