Index: lib/Basic/Targets.cpp
===================================================================
--- lib/Basic/Targets.cpp
+++ lib/Basic/Targets.cpp
@@ -4429,6 +4429,8 @@
       return "8A";
     case llvm::ARM::AK_ARMV8_1A:
       return "8_1A";
+    case llvm::ARM::AK_ARMV8_2A:
+      return "8_2A";
     }
   }
 
Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -865,10 +865,6 @@
       Features.push_back("-crc");
   }
 
-  if (Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v8_1a) {
-    Features.insert(Features.begin(), "+v8.1a");
-  }
-
   // Look for the last occurrence of -mlong-calls or -mno-long-calls. If
   // neither options are specified, see if we are compiling for kernel/kext and
   // decide whether to pass "+long-calls" based on the OS and its version.
Index: test/Driver/arm-cortex-cpus.c
===================================================================
--- test/Driver/arm-cortex-cpus.c
+++ test/Driver/arm-cortex-cpus.c
@@ -204,7 +204,7 @@
 // RUN: %clang -mcpu=generic -target armv8.1a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
 // RUN: %clang -mcpu=generic -target arm -march=armv8.1a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
 // RUN: %clang -mcpu=generic -target arm -mlittle-endian -march=armv8.1-a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
-// CHECK-V81A: "-cc1"{{.*}} "-triple" "armv8.1a-{{.*}}" "-target-cpu" "generic" "-target-feature" "+v8.1a"
+// CHECK-V81A: "-cc1"{{.*}} "-triple" "armv8.1a-{{.*}}" "-target-cpu" "generic"
 
 // RUN: %clang -target armebv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
 // RUN: %clang -target armeb -march=armebv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
@@ -212,7 +212,7 @@
 // RUN: %clang -target armv8.1a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
 // RUN: %clang -target arm -march=armebv8.1a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
 // RUN: %clang -target arm -march=armebv8.1-a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
-// CHECK-BE-V81A: "-cc1"{{.*}} "-triple" "armebv8.1a-{{.*}}" "-target-cpu" "generic" "-target-feature" "+v8.1a"
+// CHECK-BE-V81A: "-cc1"{{.*}} "-triple" "armebv8.1a-{{.*}}" "-target-cpu" "generic"
 
 // RUN: %clang -target armv8.1a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
 // RUN: %clang -target arm -march=armv8.1a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
@@ -220,7 +220,7 @@
 // RUN: %clang -target armv8.1a -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
 // RUN: %clang -target arm -march=armv8.1a -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
 // RUN: %clang -target arm -march=armv8.1-a -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
-// CHECK-V81A-THUMB: "-cc1"{{.*}} "-triple" "thumbv8.1a-{{.*}}" "-target-cpu" "generic" "-target-feature" "+v8.1a"
+// CHECK-V81A-THUMB: "-cc1"{{.*}} "-triple" "thumbv8.1a-{{.*}}" "-target-cpu" "generic"
 
 // RUN: %clang -target armebv8.1a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
 // RUN: %clang -target armeb -march=armebv8.1a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
@@ -228,7 +228,50 @@
 // RUN: %clang -target armv8.1a -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
 // RUN: %clang -target arm -march=armebv8.1a -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
 // RUN: %clang -target arm -march=armebv8.1-a -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
-// CHECK-BE-V81A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv8.1a-{{.*}}" "-target-cpu" "generic" "-target-feature" "+v8.1a"
+// CHECK-BE-V81A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv8.1a-{{.*}}" "-target-cpu" "generic"
+
+// RUN: %clang -target armv8.2a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A %s
+// RUN: %clang -target arm -march=armv8.2a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A %s
+// RUN: %clang -target arm -march=armv8.2-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A %s
+// RUN: %clang -target arm -march=armv8.2a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A %s
+// RUN: %clang -target armv8.2a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A %s
+// RUN: %clang -target arm -march=armv8.2a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A %s
+// RUN: %clang -target arm -mlittle-endian -march=armv8.2-a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A %s
+// CHECK-V82A: "-cc1"{{.*}} "-triple" "armv8.2{{.*}}" "-target-cpu" "generic"
+
+// RUN: %clang -target armebv8.2a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A %s
+// RUN: %clang -target armv8.2a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A %s
+// RUN: %clang -target armeb -march=armebv8.2a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A %s
+// RUN: %clang -target armeb -march=armebv8.2-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A %s
+// RUN: %clang -target arm -march=armebv8.2a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A %s
+// RUN: %clang -target arm -march=armebv8.2-a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A %s
+// CHECK-BE-V82A: "-cc1"{{.*}} "-triple" "armebv8.2{{.*}}" "-target-cpu" "generic"
+
+// RUN: %clang -target armv8.2a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A-THUMB %s
+// RUN: %clang -target arm -march=armv8.2a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A-THUMB %s
+// RUN: %clang -target arm -march=armv8.2-a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A-THUMB %s
+// RUN: %clang -target armv8.2a -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A-THUMB %s
+// RUN: %clang -target arm -march=armv8.2a -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A-THUMB %s
+// RUN: %clang -target arm -march=armv8.2-a -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V82A-THUMB %s
+// CHECK-V82A-THUMB: "-cc1"{{.*}} "-triple" "thumbv8.2a-{{.*}}" "-target-cpu" "generic"
+
+// RUN: %clang -target armebv8.2a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A-THUMB %s
+// RUN: %clang -target armeb -march=armebv8.2a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A-THUMB %s
+// RUN: %clang -target armeb -march=armebv8.2-a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A-THUMB %s
+// RUN: %clang -target armv8.2a -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A-THUMB %s
+// RUN: %clang -target arm -march=armebv8.2a -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A-THUMB %s
+// RUN: %clang -target arm -march=armebv8.2-a -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V82A-THUMB %s
+// CHECK-BE-V82A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv8.2a-{{.*}}" "-target-cpu" "generic"
+
+// RUN: %clang -target armv8a -march=armv8.2-a+fp16 -### -c %s 2>&1 | FileCheck --check-prefix CHECK-V82A-FP16 %s
+// CHECK-V82A-FP16: "-cc1"{{.*}} "-triple" "armv8.2{{.*}}" "-target-cpu" "generic" {{.*}}"-target-feature" "+fullfp16"
+
+// Once we have CPUs with optional v8.2-A FP16, we will need a way to turn it
+// on and off. Cortex-A53 is a placeholder for now.
+// RUN: %clang -target armv8a -mcpu=cortex-a53+fp16 -### -c %s 2>&1 | FileCheck --check-prefix CHECK-CORTEX-A53-FP16 %s
+// RUN: %clang -target armv8a -mcpu=cortex-a53+nofp16 -### -c %s 2>&1 | FileCheck --check-prefix CHECK-CORTEX-A53-NOFP16 %s
+// CHECK-CORTEX-A53-FP16: "-cc1" {{.*}}"-target-cpu" "cortex-a53" {{.*}}"-target-feature" "+fullfp16"
+// CHECK-CORTEX-A53-NOFP16: "-cc1" {{.*}}"-target-cpu" "cortex-a53" {{.*}}"-target-feature" "-fullfp16"
 
 // ================== Check that a bogus architecture gives an error
 // RUN: %clang -target arm -march=armbogusv6 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BOGUS %s
Index: test/Preprocessor/arm-target-features.c
===================================================================
--- test/Preprocessor/arm-target-features.c
+++ test/Preprocessor/arm-target-features.c
@@ -408,3 +408,9 @@
 // CHECK-V81A: __ARM_ARCH_8_1A__ 1
 // CHECK-V81A: #define __ARM_ARCH_PROFILE 'A'
 // CHECK-V81A: #define __ARM_FP 0xE
+
+// RUN: %clang -target armv8.2a-none-none-eabi -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-V82A %s
+// CHECK-V82A: __ARM_ARCH 8
+// CHECK-V82A: __ARM_ARCH_8_2A__ 1
+// CHECK-V82A: #define __ARM_ARCH_PROFILE 'A'
+// CHECK-V82A: #define __ARM_FP 0xE