Rename SSARegMap -> MachineRegisterInfo in keeping with the idea 
that "machine" classes are used to represent the current state of
the code being compiled.  Given this expanded name, we can start 
moving other stuff into it.  For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.

Update all the clients to match.

This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45467 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index d17c980..56527eb 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -25,8 +25,8 @@
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/SelectionDAGISel.h"
-#include "llvm/CodeGen/SSARegMap.h"
 #include "llvm/CodeGen/ValueTypes.h"
 #include "llvm/Support/Debug.h"
 #include <queue>
@@ -139,8 +139,8 @@
 AddLiveIn(MachineFunction &MF, unsigned PReg, TargetRegisterClass *RC) 
 {
   assert(RC->contains(PReg) && "Not the correct regclass!");
-  unsigned VReg = MF.getSSARegMap()->createVirtualRegister(RC);
-  MF.addLiveIn(PReg, VReg);
+  unsigned VReg = MF.getRegInfo().createVirtualRegister(RC);
+  MF.getRegInfo().addLiveIn(PReg, VReg);
   return VReg;
 }
 
@@ -596,10 +596,10 @@
 
   // If this is the first return lowered for this function, add 
   // the regs to the liveout set for the function.
-  if (DAG.getMachineFunction().liveout_empty()) {
+  if (DAG.getMachineFunction().getRegInfo().liveout_empty()) {
     for (unsigned i = 0; i != RVLocs.size(); ++i)
       if (RVLocs[i].isRegLoc())
-        DAG.getMachineFunction().addLiveOut(RVLocs[i].getLocReg());
+        DAG.getMachineFunction().getRegInfo().addLiveOut(RVLocs[i].getLocReg());
   }
 
   // The chain is always operand #0