Update aosp/master LLVM for rebase to r222494.

Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
diff --git a/lib/CodeGen/RegAllocBase.cpp b/lib/CodeGen/RegAllocBase.cpp
index 894aee7..122afd1 100644
--- a/lib/CodeGen/RegAllocBase.cpp
+++ b/lib/CodeGen/RegAllocBase.cpp
@@ -21,7 +21,6 @@
 #include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/VirtRegMap.h"
-#include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #ifndef NDEBUG
 #include "llvm/ADT/SparseBitVector.h"
@@ -102,7 +101,7 @@
     // register if possible and populate a list of new live intervals that
     // result from splitting.
     DEBUG(dbgs() << "\nselectOrSplit "
-          << MRI->getRegClass(VirtReg->reg)->getName()
+          << TRI->getRegClassName(MRI->getRegClass(VirtReg->reg))
           << ':' << *VirtReg << " w=" << VirtReg->weight << '\n');
     typedef SmallVector<unsigned, 4> VirtRegVec;
     VirtRegVec SplitVRegs;