ARM refactoring. Step 2: split RegisterInfo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74384 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMTargetMachine.h b/lib/Target/ARM/ARMTargetMachine.h
index 0b49b92..eab1e46 100644
--- a/lib/Target/ARM/ARMTargetMachine.h
+++ b/lib/Target/ARM/ARMTargetMachine.h
@@ -120,7 +120,7 @@
 public:
   ThumbTargetMachine(const Module &M, const std::string &FS);
 
-  virtual const ARMRegisterInfo  *getRegisterInfo() const {
+  virtual const ThumbRegisterInfo  *getRegisterInfo() const {
     return &InstrInfo.getRegisterInfo();
   }