ArrayRef'ize spillCalleeSavedRegisters. NFCI.
diff --git a/llvm/lib/Target/ARC/ARCFrameLowering.h b/llvm/lib/Target/ARC/ARCFrameLowering.h
index 9242400..a96bf8e 100644
--- a/llvm/lib/Target/ARC/ARCFrameLowering.h
+++ b/llvm/lib/Target/ARC/ARCFrameLowering.h
@@ -42,7 +42,7 @@
 
   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
                                  MachineBasicBlock::iterator MI,
-                                 const std::vector<CalleeSavedInfo> &CSI,
+                                 ArrayRef<CalleeSavedInfo> CSI,
                                  const TargetRegisterInfo *TRI) const override;
 
   bool