diff --git a/clang/lib/Driver/ToolChains/Arch/AArch64.cpp b/clang/lib/Driver/ToolChains/Arch/AArch64.cpp
--- a/clang/lib/Driver/ToolChains/Arch/AArch64.cpp
+++ b/clang/lib/Driver/ToolChains/Arch/AArch64.cpp
@@ -151,6 +151,8 @@
   std::pair<StringRef, StringRef> Split = StringRef(MarchLowerCase).split("+");
 
   llvm::AArch64::ArchKind ArchKind = llvm::AArch64::parseArch(Split.first);
+  if (Split.first == "native")
+    ArchKind = llvm::AArch64::getCPUArchKind(llvm::sys::getHostCPUName().str());
   if (ArchKind == llvm::AArch64::ArchKind::INVALID ||
       !llvm::AArch64::getArchFeatures(ArchKind, Features))
     return false;
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -1299,11 +1299,7 @@
   bool HaveVectorSupport = CVT[244] & 0x80;
   return getCPUNameFromS390Model(Id, HaveVectorSupport);
 }
-#elif defined(__APPLE__) && defined(__aarch64__)
-StringRef sys::getHostCPUName() {
-  return "cyclone";
-}
-#elif defined(__APPLE__) && defined(__arm__)
+#elif defined(__APPLE__) && (defined(__arm__) || defined(__aarch64__))
 StringRef sys::getHostCPUName() {
   host_basic_info_data_t hostInfo;
   mach_msg_type_number_t infoCount;
@@ -1314,15 +1310,23 @@
             &infoCount);
   mach_port_deallocate(mach_task_self(), hostPort);
 
-  if (hostInfo.cpu_type != CPU_TYPE_ARM) {
-    assert(false && "CPUType not equal to ARM should not be possible on ARM");
-    return "generic";
-  }
-  switch (hostInfo.cpu_subtype) {
+  if (hostInfo.cpu_type == CPU_TYPE_ARM) {
+    switch (hostInfo.cpu_subtype) {
     case CPU_SUBTYPE_ARM_V7S:
       return "swift";
-    default:;
+    default:
+      break;
     }
+  } else if (hostInfo.cpu_type == CPU_TYPE_ARM64) {
+    switch (hostInfo.cpu_subtype) {
+    case CPU_SUBTYPE_ARM64E:
+      return "apple-m1";
+    default:
+      return "cyclone";
+    }
+  } else {
+    assert(false && "CPUType not equal to ARM/ARM64 should not be possible");
+  }
 
   return "generic";
 }