LR is in GPR, not tGPR even in Thumb1 mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104518 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 21042da..768ffb9 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -2158,10 +2158,7 @@
   }
 
   // Return LR, which contains the return address. Mark it an implicit live-in.
-  ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
-  TargetRegisterClass *RC = AFI->isThumb1OnlyFunction()
-    ? ARM::tGPRRegisterClass : ARM::GPRRegisterClass;
-  unsigned Reg = MF.addLiveIn(ARM::LR, RC); 
+  unsigned Reg = MF.addLiveIn(ARM::LR, ARM::GPRRegisterClass); 
   return DAG.getCopyFromReg(DAG.getEntryNode(), dl, Reg, VT);
 }