diff --git a/clang/test/Driver/aarch64-cpus.c b/clang/test/Driver/aarch64-cpus.c
--- a/clang/test/Driver/aarch64-cpus.c
+++ b/clang/test/Driver/aarch64-cpus.c
@@ -171,6 +171,9 @@
 // ARM64-CORTEX-A76: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "cortex-a76"
 // ARM64-CORTEX-A76-TUNE: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "generic"
 
+// RUN: %clang -target aarch64 -mcpu=cortex-a77  -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A77 %s
+// CORTEX-A77: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a77"
+
 // RUN: %clang -target aarch64_be -mcpu=exynos-m3 -### -c %s 2>&1 | FileCheck -check-prefix=M3 %s
 // RUN: %clang -target aarch64 -mbig-endian -mcpu=exynos-m3 -### -c %s 2>&1 | FileCheck -check-prefix=M3 %s
 // RUN: %clang -target aarch64_be -mbig-endian -mcpu=exynos-m3 -### -c %s 2>&1 | FileCheck -check-prefix=M3 %s
diff --git a/clang/test/Driver/arm-cortex-cpus.c b/clang/test/Driver/arm-cortex-cpus.c
--- a/clang/test/Driver/arm-cortex-cpus.c
+++ b/clang/test/Driver/arm-cortex-cpus.c
@@ -686,10 +686,12 @@
 // RUN: %clang -target arm -mcpu=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
 // RUN: %clang -target arm -mcpu=cortex-a76 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
 // RUN: %clang -target arm -mcpu=cortex-a76ae -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
+// RUN: %clang -target arm -mcpu=cortex-a77 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
 // RUN: %clang -target arm -mcpu=cortex-a55 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
 // RUN: %clang -target arm -mcpu=cortex-a75 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
 // RUN: %clang -target arm -mcpu=cortex-a76 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
 // RUN: %clang -target arm -mcpu=cortex-a76ae -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
+// RUN: %clang -target arm -mcpu=cortex-a77 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
 //
 // RUN: %clang -target arm -mcpu=exynos-m4 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
 // RUN: %clang -target arm -mcpu=exynos-m4 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A %s
@@ -718,10 +720,12 @@
 // RUN: %clang -target armeb -mcpu=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
 // RUN: %clang -target armeb -mcpu=cortex-a76 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
 // RUN: %clang -target armeb -mcpu=cortex-a76ae -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
+// RUN: %clang -target armeb -mcpu=cortex-a77 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
 // RUN: %clang -target arm -mcpu=cortex-a55 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
 // RUN: %clang -target arm -mcpu=cortex-a75 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
 // RUN: %clang -target arm -mcpu=cortex-a76 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
 // RUN: %clang -target arm -mcpu=cortex-a76ae -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
+// RUN: %clang -target arm -mcpu=cortex-a77 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
 //
 // RUN: %clang -target armeb -mcpu=exynos-m4 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
 // RUN: %clang -target arm -mcpu=exynos-m4 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A %s
@@ -753,10 +757,12 @@
 // RUN: %clang -target arm -mcpu=cortex-a75 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a76 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a76ae -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
+// RUN: %clang -target arm -mcpu=cortex-a77 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a55 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a75 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a76 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a76ae -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
+// RUN: %clang -target arm -mcpu=cortex-a77 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
 //
 // RUN: %clang -target arm -mcpu=exynos-m4 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=exynos-m4 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV82A-THUMB %s
@@ -785,10 +791,12 @@
 // RUN: %clang -target armeb -mcpu=cortex-a75 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
 // RUN: %clang -target armeb -mcpu=cortex-a76 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
 // RUN: %clang -target armeb -mcpu=cortex-a76ae -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
+// RUN: %clang -target armeb -mcpu=cortex-a77 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a55 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a75 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a76 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a76ae -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
+// RUN: %clang -target arm -mcpu=cortex-a77 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
 //
 // RUN: %clang -target armeb -mcpu=exynos-m4 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
 // RUN: %clang -target arm -mcpu=exynos-m4 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV82A-THUMB %s
diff --git a/llvm/include/llvm/Support/AArch64TargetParser.def b/llvm/include/llvm/Support/AArch64TargetParser.def
--- a/llvm/include/llvm/Support/AArch64TargetParser.def
+++ b/llvm/include/llvm/Support/AArch64TargetParser.def
@@ -124,6 +124,9 @@
 AARCH64_CPU_NAME("cortex-a76ae", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
                  (AArch64::AEK_FP16 | AArch64::AEK_DOTPROD | AArch64::AEK_RCPC |
                   AArch64::AEK_SSBS))
+AARCH64_CPU_NAME("cortex-a77", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
+                 (AArch64::AEK_FP16 | AArch64::AEK_RCPC | AArch64::AEK_DOTPROD |
+                  AArch64::AEK_SSBS))
 AARCH64_CPU_NAME("neoverse-e1", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
                  (AArch64::AEK_DOTPROD | AArch64::AEK_FP16 | AArch64::AEK_RAS |
                   AArch64::AEK_RCPC | AArch64::AEK_SSBS))
diff --git a/llvm/include/llvm/Support/ARMTargetParser.def b/llvm/include/llvm/Support/ARMTargetParser.def
--- a/llvm/include/llvm/Support/ARMTargetParser.def
+++ b/llvm/include/llvm/Support/ARMTargetParser.def
@@ -292,6 +292,8 @@
             (ARM::AEK_FP16 | ARM::AEK_DOTPROD))
 ARM_CPU_NAME("cortex-a76ae", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
             (ARM::AEK_FP16 | ARM::AEK_DOTPROD))
+ARM_CPU_NAME("cortex-a77", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
+            (ARM::AEK_FP16 | ARM::AEK_DOTPROD))
 ARM_CPU_NAME("neoverse-n1", ARMV8_2A, FK_CRYPTO_NEON_FP_ARMV8, false,
              (ARM::AEK_FP16 | ARM::AEK_DOTPROD))
 ARM_CPU_NAME("cyclone", ARMV8A, FK_CRYPTO_NEON_FP_ARMV8, false, ARM::AEK_CRC)
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
@@ -204,6 +204,7 @@
             .Case("0xd09", "cortex-a73")
             .Case("0xd0a", "cortex-a75")
             .Case("0xd0b", "cortex-a76")
+            .Case("0xd0d", "cortex-a77")
             .Case("0xd0c", "neoverse-n1")
             .Default("generic");
   }
diff --git a/llvm/lib/Target/AArch64/AArch64.td b/llvm/lib/Target/AArch64/AArch64.td
--- a/llvm/lib/Target/AArch64/AArch64.td
+++ b/llvm/lib/Target/AArch64/AArch64.td
@@ -626,6 +626,16 @@
                                     FeatureSSBS
                                     ]>;
 
+def ProcA77     : SubtargetFeature<"a77", "ARMProcFamily", "CortexA77",
+                                   "Cortex-A77 ARM processors", [
+                                    HasV8_2aOps,
+                                    FeatureFPARMv8,
+                                    FeatureNEON, FeatureRCPC,
+                                    FeatureCrypto,
+                                    FeatureFullFP16,
+                                    FeatureDotProd
+                                    ]>;
+
 def ProcA64FX : SubtargetFeature<"a64fx", "ARMProcFamily", "A64FX",
                                  "Fujitsu A64FX processors", [
                                   HasV8_2aOps,
@@ -967,6 +977,7 @@
 def : ProcessorModel<"cortex-a75", CortexA57Model, [ProcA75]>;
 def : ProcessorModel<"cortex-a76", CortexA57Model, [ProcA76]>;
 def : ProcessorModel<"cortex-a76ae", CortexA57Model, [ProcA76]>;
+def : ProcessorModel<"cortex-a77", CortexA57Model, [ProcA77]>;
 def : ProcessorModel<"neoverse-e1", CortexA53Model, [ProcNeoverseE1]>;
 def : ProcessorModel<"neoverse-n1", CortexA57Model, [ProcNeoverseN1]>;
 def : ProcessorModel<"exynos-m3", ExynosM3Model, [ProcExynosM3]>;
diff --git a/llvm/lib/Target/AArch64/AArch64Subtarget.h b/llvm/lib/Target/AArch64/AArch64Subtarget.h
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.h
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.h
@@ -55,6 +55,7 @@
     CortexA73,
     CortexA75,
     CortexA76,
+    CortexA77,
     ExynosM3,
     Falkor,
     Kryo,
diff --git a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -101,6 +101,7 @@
   case CortexA73:
   case CortexA75:
   case CortexA76:
+  case CortexA77:
     PrefFunctionLogAlignment = 4;
     break;
   case A64FX:
diff --git a/llvm/lib/Target/ARM/ARM.td b/llvm/lib/Target/ARM/ARM.td
--- a/llvm/lib/Target/ARM/ARM.td
+++ b/llvm/lib/Target/ARM/ARM.td
@@ -594,6 +594,8 @@
                                    "Cortex-A75 ARM processors", []>;
 def ProcA76     : SubtargetFeature<"a76", "ARMProcFamily", "CortexA76",
                                    "Cortex-A76 ARM processors", []>;
+def ProcA77     : SubtargetFeature<"a77", "ARMProcFamily", "CortexA77",
+                                   "Cortex-A77 ARM processors", []>;
 
 def ProcKrait   : SubtargetFeature<"krait", "ARMProcFamily", "Krait",
                                    "Qualcomm Krait processors", []>;
@@ -1224,6 +1226,14 @@
                                                          FeatureFullFP16,
                                                          FeatureDotProd]>;
 
+def : ProcNoItin<"cortex-a77",                          [ARMv82a, ProcA77,
+                                                         FeatureHWDivThumb,
+                                                         FeatureHWDivARM,
+                                                         FeatureCrypto,
+                                                         FeatureCRC,
+                                                         FeatureFullFP16,
+                                                         FeatureDotProd]>;
+
 def : ProcNoItin<"neoverse-n1",                         [ARMv82a,
                                                          FeatureHWDivThumb,
                                                          FeatureHWDivARM,
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -61,6 +61,7 @@
     CortexA73,
     CortexA75,
     CortexA76,
+    CortexA77,
     CortexA8,
     CortexA9,
     CortexM3,
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.cpp b/llvm/lib/Target/ARM/ARMSubtarget.cpp
--- a/llvm/lib/Target/ARM/ARMSubtarget.cpp
+++ b/llvm/lib/Target/ARM/ARMSubtarget.cpp
@@ -292,6 +292,7 @@
   case CortexA73:
   case CortexA75:
   case CortexA76:
+  case CortexA77:
   case CortexR4:
   case CortexR4F:
   case CortexR5:
diff --git a/llvm/test/CodeGen/AArch64/cpus.ll b/llvm/test/CodeGen/AArch64/cpus.ll
--- a/llvm/test/CodeGen/AArch64/cpus.ll
+++ b/llvm/test/CodeGen/AArch64/cpus.ll
@@ -15,6 +15,7 @@
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=cortex-a75 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=cortex-a76ae 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=cortex-a76 2>&1 | FileCheck %s
+; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=cortex-a77 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=neoverse-e1 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=neoverse-n1 2>&1 | FileCheck %s
 ; RUN: llc < %s -mtriple=arm64-unknown-unknown -mcpu=exynos-m3 2>&1 | FileCheck %s
diff --git a/llvm/test/CodeGen/AArch64/remat.ll b/llvm/test/CodeGen/AArch64/remat.ll
--- a/llvm/test/CodeGen/AArch64/remat.ll
+++ b/llvm/test/CodeGen/AArch64/remat.ll
@@ -8,6 +8,7 @@
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=cortex-a72 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=cortex-a73 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=cortex-a75 -o - %s | FileCheck %s
+; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=cortex-a77 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=neoverse-e1 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=neoverse-n1 -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-gnuabi -mcpu=exynos-m3 -o - %s | FileCheck %s
diff --git a/llvm/test/MC/AArch64/armv8.2a-dotprod.s b/llvm/test/MC/AArch64/armv8.2a-dotprod.s
--- a/llvm/test/MC/AArch64/armv8.2a-dotprod.s
+++ b/llvm/test/MC/AArch64/armv8.2a-dotprod.s
@@ -4,6 +4,7 @@
 // RUN: llvm-mc -triple aarch64 -mcpu=cortex-a65ae -show-encoding < %s| FileCheck %s --check-prefix=CHECK-DOTPROD
 // RUN: llvm-mc -triple aarch64 -mcpu=cortex-a75 -show-encoding < %s | FileCheck %s --check-prefix=CHECK-DOTPROD
 // RUN: llvm-mc -triple aarch64 -mcpu=cortex-a76 -show-encoding < %s | FileCheck %s --check-prefix=CHECK-DOTPROD
+// RUN: llvm-mc -triple aarch64 -mcpu=cortex-a77 -show-encoding < %s     | FileCheck %s --check-prefix=CHECK-DOTPROD
 // RUN: llvm-mc -triple aarch64 -mcpu=neoverse-e1 -show-encoding < %s| FileCheck %s --check-prefix=CHECK-DOTPROD
 // RUN: llvm-mc -triple aarch64 -mcpu=neoverse-n1 -show-encoding < %s| FileCheck %s --check-prefix=CHECK-DOTPROD
 // RUN: llvm-mc -triple aarch64 -mcpu=tsv110 -show-encoding < %s | FileCheck %s --check-prefix=CHECK-DOTPROD
@@ -16,6 +17,8 @@
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 // RUN: not llvm-mc -triple aarch64 -mcpu=neoverse-e1 -mattr=-dotprod -show-encoding < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
+// RUN: not llvm-mc -triple aarch64 -mcpu=cortex-a77 -mattr=-dotprod -show-encoding < %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 // RUN: not llvm-mc -triple aarch64 -mcpu=neoverse-n1 -mattr=-dotprod -show-encoding < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 
diff --git a/llvm/test/MC/ARM/armv8.2a-dotprod-a32.s b/llvm/test/MC/ARM/armv8.2a-dotprod-a32.s
--- a/llvm/test/MC/ARM/armv8.2a-dotprod-a32.s
+++ b/llvm/test/MC/ARM/armv8.2a-dotprod-a32.s
@@ -3,9 +3,12 @@
 // RUN: llvm-mc -triple arm -mcpu=cortex-a75 -show-encoding < %s | FileCheck %s  --check-prefix=CHECK
 // RUN: llvm-mc -triple arm -mcpu=cortex-a76 -show-encoding < %s | FileCheck %s  --check-prefix=CHECK
 // RUN: llvm-mc -triple arm -mcpu=neoverse-n1 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
+// RUN: llvm-mc -triple arm -mcpu=cortex-a77 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
 
 // RUN: not llvm-mc -triple arm -mattr=-dotprod -show-encoding < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
+// RUN: not llvm-mc -triple arm -mcpu=cortex-a77 -mattr=-dotprod -show-encoding < %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 // RUN: not llvm-mc -triple arm -show-encoding < %s 2> %t
 // RUN: FileCheck --check-prefix=CHECK-NO-DOTPROD < %t %s
 // RUN: not llvm-mc -triple arm -mattr=+v8.1a -show-encoding < %s 2> %t
diff --git a/llvm/test/MC/ARM/armv8.2a-dotprod-t32.s b/llvm/test/MC/ARM/armv8.2a-dotprod-t32.s
--- a/llvm/test/MC/ARM/armv8.2a-dotprod-t32.s
+++ b/llvm/test/MC/ARM/armv8.2a-dotprod-t32.s
@@ -2,6 +2,7 @@
 // RUN: llvm-mc -triple thumb -mcpu=cortex-a55 -show-encoding < %s | FileCheck %s  --check-prefix=CHECK
 // RUN: llvm-mc -triple thumb -mcpu=cortex-a75 -show-encoding < %s | FileCheck %s  --check-prefix=CHECK
 // RUN: llvm-mc -triple thumb -mcpu=cortex-a76 -show-encoding < %s | FileCheck %s  --check-prefix=CHECK
+// RUN: llvm-mc -triple thumb -mcpu=cortex-a77 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
 // RUN: llvm-mc -triple thumb -mcpu=neoverse-n1 -show-encoding < %s | FileCheck %s --check-prefix=CHECK
 
 // RUN: not llvm-mc -triple thumb -mattr=-dotprod -show-encoding < %s 2> %t
diff --git a/llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt b/llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt
--- a/llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt
+++ b/llvm/test/MC/Disassembler/AArch64/armv8.3a-rcpc.txt
@@ -4,6 +4,7 @@
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=cortex-a65 --disassemble < %s | FileCheck %s
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=cortex-a65ae --disassemble < %s | FileCheck %s
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=cortex-a75 --disassemble < %s | FileCheck %s
+# RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=cortex-a77 --disassemble < %s | FileCheck %s
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=neoverse-e1 --disassemble < %s | FileCheck %s
 # RUN: llvm-mc -triple aarch64-none-linux-gnu -mcpu=neoverse-n1 --disassemble < %s | FileCheck %s
 
diff --git a/llvm/unittests/Support/TargetParserTest.cpp b/llvm/unittests/Support/TargetParserTest.cpp
--- a/llvm/unittests/Support/TargetParserTest.cpp
+++ b/llvm/unittests/Support/TargetParserTest.cpp
@@ -256,6 +256,12 @@
                          ARM::AEK_HWDIVTHUMB | ARM::AEK_DSP | ARM::AEK_FP16 |
                          ARM::AEK_RAS | ARM::AEK_DOTPROD,
                          "8.2-A"));
+  EXPECT_TRUE(testARMCPU("cortex-a77", "armv8.2-a", "crypto-neon-fp-armv8",
+                         ARM::AEK_CRC | ARM::AEK_SEC | ARM::AEK_MP |
+                         ARM::AEK_VIRT | ARM::AEK_HWDIVARM |
+                         ARM::AEK_HWDIVTHUMB | ARM::AEK_DSP | ARM::AEK_FP16 |
+                         ARM::AEK_RAS | ARM::AEK_DOTPROD,
+                         "8.2-A"));
   EXPECT_TRUE(testARMCPU("neoverse-n1", "armv8.2-a", "crypto-neon-fp-armv8",
                         ARM::AEK_CRC | ARM::AEK_SEC | ARM::AEK_MP |
                         ARM::AEK_VIRT | ARM::AEK_HWDIVARM |
@@ -304,7 +310,7 @@
                          "7-S"));
 }
 
-static constexpr unsigned NumARMCPUArchs = 86;
+static constexpr unsigned NumARMCPUArchs = 87;
 
 TEST(TargetParserTest, testARMCPUArchList) {
   SmallVector<StringRef, NumARMCPUArchs> List;
@@ -853,6 +859,12 @@
       AArch64::AEK_LSE | AArch64::AEK_FP16 | AArch64::AEK_DOTPROD |
       AArch64::AEK_RCPC| AArch64::AEK_SSBS, "8.2-A"));
   EXPECT_TRUE(testAArch64CPU(
+      "cortex-a77", "armv8.2-a", "crypto-neon-fp-armv8",
+      AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
+      AArch64::AEK_RDM | AArch64::AEK_SIMD | AArch64::AEK_RAS |
+      AArch64::AEK_LSE | AArch64::AEK_FP16 | AArch64::AEK_DOTPROD |
+      AArch64::AEK_RCPC | AArch64::AEK_SSBS, "8.2-A"));
+  EXPECT_TRUE(testAArch64CPU(
       "cyclone", "armv8-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRYPTO | AArch64::AEK_FP | AArch64::AEK_SIMD, "8-A"));
   EXPECT_TRUE(testAArch64CPU(
@@ -990,7 +1002,7 @@
       "8.2-A"));
 }
 
-static constexpr unsigned NumAArch64CPUArchs = 39;
+static constexpr unsigned NumAArch64CPUArchs = 40;
 
 TEST(TargetParserTest, testAArch64CPUArchList) {
   SmallVector<StringRef, NumAArch64CPUArchs> List;