Index: lib/Target/AArch64/AArch64Subtarget.h
===================================================================
--- lib/Target/AArch64/AArch64Subtarget.h
+++ lib/Target/AArch64/AArch64Subtarget.h
@@ -161,11 +161,11 @@
   bool isTargetMachO() const { return TargetTriple.isOSBinFormatMachO(); }
 
   bool isGeneric() const { return CPUString == "generic"; }
-  bool isCyclone() const { return CPUString == "cyclone"; }
-  bool isCortexA57() const { return CPUString == "cortex-a57"; }
-  bool isCortexA53() const { return CPUString == "cortex-a53"; }
-  bool isExynosM1() const { return CPUString == "exynos-m1"; }
-  bool isKryo() const { return CPUString == "kryo"; }
+  bool isCyclone() const { return ARMProcFamily == Cyclone; }
+  bool isCortexA57() const { return ARMProcFamily == CortexA57; }
+  bool isCortexA53() const { return ARMProcFamily == CortexA53; }
+  bool isExynosM1() const { return ARMProcFamily == ExynosM1; }
+  bool isKryo() const { return ARMProcFamily == Kryo; }
 
   bool useAA() const override { return isCortexA53(); }