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
@@ -206,6 +206,8 @@
         .Case("0xd02", "cortex-a34")
         .Case("0xd04", "cortex-a35")
         .Case("0xd03", "cortex-a53")
+        .Case("0xd05", "cortex-a55")
+        .Case("0xd46", "cortex-a510")
         .Case("0xd07", "cortex-a57")
         .Case("0xd08", "cortex-a72")
         .Case("0xd09", "cortex-a73")
@@ -213,9 +215,11 @@
         .Case("0xd0b", "cortex-a76")
         .Case("0xd0d", "cortex-a77")
         .Case("0xd41", "cortex-a78")
+        .Case("0xd47", "cortex-a710")
         .Case("0xd4d", "cortex-a715")
         .Case("0xd44", "cortex-x1")
         .Case("0xd4c", "cortex-x1c")
+        .Case("0xd48", "cortex-x2")
         .Case("0xd4e", "cortex-x3")
         .Case("0xd0c", "neoverse-n1")
         .Case("0xd49", "neoverse-n2")
diff --git a/llvm/unittests/Support/Host.cpp b/llvm/unittests/Support/Host.cpp
--- a/llvm/unittests/Support/Host.cpp
+++ b/llvm/unittests/Support/Host.cpp
@@ -106,6 +106,9 @@
   EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
                                               "CPU part        : 0xd03"),
             "cortex-a53");
+  EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
+                                              "CPU part        : 0xd05"),
+            "cortex-a55");
 
   EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
                                               "CPU part        : 0xd40"),
@@ -126,6 +129,15 @@
   EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
                                               "CPU part        : 0x801"),
             "cortex-a73");
+  EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
+                                              "CPU part        : 0xd46"),
+            "cortex-a510");
+  EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
+                                              "CPU part        : 0xd47"),
+            "cortex-a710");
+  EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x41\n"
+                                              "CPU part        : 0xd48"),
+            "cortex-x2");
   EXPECT_EQ(sys::detail::getHostCPUNameForARM("CPU implementer : 0x51\n"
                                               "CPU part        : 0xc00"),
             "falkor");