+/// addLiveIn - Add the specified physical register as a live-in value and
+/// create a corresponding virtual register for it.
+unsigned MachineFunction::addLiveIn(unsigned PReg,
+ const TargetRegisterClass *RC) {
+ assert(RC->contains(PReg) && "Not the correct regclass!");
+ unsigned VReg = getRegInfo().createVirtualRegister(RC);
+ getRegInfo().addLiveIn(PReg, VReg);
+ return VReg;
+}
+
+/// getOrCreateDebugLocID - Look up the DebugLocTuple index with the given
+/// source file, line, and column. If none currently exists, create a new
+/// DebugLocTuple, and insert it into the DebugIdMap.
+unsigned MachineFunction::getOrCreateDebugLocID(GlobalVariable *CompileUnit,
+ unsigned Line, unsigned Col) {
+ DebugLocTuple Tuple(CompileUnit, Line, Col);
+ DenseMap<DebugLocTuple, unsigned>::iterator II
+ = DebugLocInfo.DebugIdMap.find(Tuple);
+ if (II != DebugLocInfo.DebugIdMap.end())
+ return II->second;
+ // Add a new tuple.
+ unsigned Id = DebugLocInfo.DebugLocations.size();
+ DebugLocInfo.DebugLocations.push_back(Tuple);
+ DebugLocInfo.DebugIdMap[Tuple] = Id;
+ return Id;
+}
+
+/// getDebugLocTuple - Get the DebugLocTuple for a given DebugLoc object.
+DebugLocTuple MachineFunction::getDebugLocTuple(DebugLoc DL) const {
+ unsigned Idx = DL.getIndex();
+ assert(Idx < DebugLocInfo.DebugLocations.size() &&
+ "Invalid index into debug locations!");
+ return DebugLocInfo.DebugLocations[Idx];