1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.h b/lib/Target/ARM/ARMBaseRegisterInfo.h
index 0d4f54f891..e28fff68f4 100644
--- a/lib/Target/ARM/ARMBaseRegisterInfo.h
+++ b/lib/Target/ARM/ARMBaseRegisterInfo.h
@@ -72,6 +72,14 @@ static inline bool isARMArea3Register(unsigned Reg, bool isIOS) {
   }
 }
 
+static inline bool isCalleeSavedRegister(unsigned Reg,
+                                         const MCPhysReg *CSRegs) {
+  for (unsigned i = 0; CSRegs[i]; ++i)
+    if (Reg == CSRegs[i])
+      return true;
+  return false;
+}
+
 class ARMBaseRegisterInfo : public ARMGenRegisterInfo {
 protected:
   const ARMSubtarget &STI;