diff --git a/clang/test/Driver/aarch64-cpus-2.c b/clang/test/Driver/aarch64-archs.c
rename from clang/test/Driver/aarch64-cpus-2.c
rename to clang/test/Driver/aarch64-archs.c
--- a/clang/test/Driver/aarch64-cpus-2.c
+++ b/clang/test/Driver/aarch64-archs.c
@@ -47,62 +47,6 @@
 // RUN: %clang -target aarch64_be -mbig-endian -march=armv8.2-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-BE %s
 // GENERICV82A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.2a"
 
-// RUN: %clang -target aarch64 -march=armv8.2a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.2-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16FML %s
-// GENERICV82A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fp16fml"
-// GENERICV82A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.2a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16 %s
-// RUN: %clang -target aarch64 -march=armv8.2-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16 %s
-// GENERICV82A-FP16: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.2a" "-target-feature" "+fullfp16"
-// GENERICV82A-FP16-NOT: "-target-feature" "{{[+-]}}fp16fml"
-// GENERICV82A-FP16-SAME: {{$}}
-
-// RUN: %clang -target aarch64 -march=armv8.2-a+profile -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-SPE %s
-// GENERICV82A-SPE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.2a" "-target-feature" "+spe"
-
-// RUN: %clang -target aarch64 -march=armv8a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-NO-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-NO-FP16FML %s
-// GENERICV8A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fp16fml"
-// GENERICV8A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-FP16 %s
-// RUN: %clang -target aarch64 -march=armv8-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-FP16 %s
-// GENERICV8A-FP16-NOT: "-target-feature" "{{[+-]}}fp16fml"
-// GENERICV8A-FP16: "-target-feature" "+fullfp16"
-// GENERICV8A-FP16-NOT: "-target-feature" "{{[+-]}}fp16fml"
-// GENERICV8A-FP16-SAME: {{$}}
-
-// RUN: %clang -target aarch64 -march=armv8a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8-a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-FP16FML %s
-// GENERICV8A-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.2a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.2-a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16FML %s
-// GENERICV82A-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.2a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16-NO-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.2-a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16-NO-FP16FML %s
-// GENERICV82A-FP16-NO-FP16FML: "-target-feature" "+fullfp16" "-target-feature" "-fp16fml"
-
-// RUN: %clang -target aarch64 -march=armv8.2a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16FML-FP16 %s
-// RUN: %clang -target aarch64 -march=armv8.2-a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16FML-FP16 %s
-// GENERICV82A-NO-FP16FML-FP16: "-target-feature" "-fp16fml" "-target-feature" "+fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.2a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16FML-NO-FP16 %s
-// RUN: %clang -target aarch64 -march=armv8.2-a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16FML-NO-FP16 %s
-// GENERICV82A-FP16FML-NO-FP16: "-target-feature" "-fullfp16" "-target-feature" "-fp16fml"
-
-// RUN: %clang -target aarch64 -march=armv8.2a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.2-a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16-FP16FML %s
-// GENERICV82A-NO-FP16-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.2a+fp16+profile -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16-SPE %s
-// RUN: %clang -target aarch64 -march=armv8.2-a+fp16+profile -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16-SPE %s
-// GENERICV82A-FP16-SPE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.2a" "-target-feature" "+fullfp16" "-target-feature" "+spe"
-// GENERICV82A-FP16-SPE-NOT:  "-target-feature" "{{[+-]}}fp16fml"
-// GENERICV82A-FP16-SPE-SAME: {{$}}
-
 // RUN: %clang -target aarch64 -march=armv8.3a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A %s
 // RUN: %clang -target aarch64 -march=armv8.3-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A %s
 // RUN: %clang -target aarch64 -mlittle-endian -march=armv8.3a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A %s
@@ -119,35 +63,6 @@
 // RUN: %clang -target aarch64_be -mbig-endian -march=armv8.3-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-BE %s
 // GENERICV83A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.3a"
 
-// RUN: %clang -target aarch64 -march=armv8.3a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.3-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16FML %s
-// GENERICV83A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fp16fml"
-// GENERICV83A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.3a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16 %s
-// RUN: %clang -target aarch64 -march=armv8.3-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16 %s
-// GENERICV83A-FP16: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.3a" "-target-feature" "+fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.3a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.3-a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16FML %s
-// GENERICV83A-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.3a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16-NO-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.3-a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16-NO-FP16FML %s
-// GENERICV83A-FP16-NO-FP16FML: "-target-feature" "+fullfp16" "-target-feature" "-fp16fml"
-
-// RUN: %clang -target aarch64 -march=armv8.3a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16FML-FP16 %s
-// RUN: %clang -target aarch64 -march=armv8.3-a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16FML-FP16 %s
-// GENERICV83A-NO-FP16FML-FP16: "-target-feature" "-fp16fml" "-target-feature" "+fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.3a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16FML-NO-FP16 %s
-// RUN: %clang -target aarch64 -march=armv8.3-a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16FML-NO-FP16 %s
-// GENERICV83A-FP16FML-NO-FP16: "-target-feature" "-fullfp16" "-target-feature" "-fp16fml"
-
-// RUN: %clang -target aarch64 -march=armv8.3a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.3-a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16-FP16FML %s
-// GENERICV83A-NO-FP16-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
-
 // RUN: %clang -target aarch64 -march=armv8.4a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A %s
 // RUN: %clang -target aarch64 -march=armv8.4-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A %s
 // RUN: %clang -target aarch64 -mlittle-endian -march=armv8.4a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A %s
@@ -164,35 +79,6 @@
 // RUN: %clang -target aarch64_be -mbig-endian -march=armv8.4-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-BE %s
 // GENERICV84A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.4a"
 
-// RUN: %clang -target aarch64 -march=armv8.4a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.4-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16FML %s
-// GENERICV84A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fp16fml"
-// GENERICV84A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.4a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16 %s
-// RUN: %clang -target aarch64 -march=armv8.4-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16 %s
-// GENERICV84A-FP16: "-target-feature" "+fullfp16" "-target-feature" "+fp16fml"
-
-// RUN: %clang -target aarch64 -march=armv8.4a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.4-a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16FML %s
-// GENERICV84A-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
-
-// RUN: %clang -target aarch64 -march=armv8.4a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16-NO-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.4-a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16-NO-FP16FML %s
-// GENERICV84A-FP16-NO-FP16FML: "-target-feature" "+fullfp16" "-target-feature" "-fp16fml"
-
-// RUN: %clang -target aarch64 -march=armv8.4a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16FML-FP16 %s
-// RUN: %clang -target aarch64 -march=armv8.4-a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16FML-FP16 %s
-// GENERICV84A-NO-FP16FML-FP16: "-target-feature" "+fullfp16" "-target-feature" "+fp16fml"
-
-// RUN: %clang -target aarch64 -march=armv8.4a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16FML-NO-FP16 %s
-// RUN: %clang -target aarch64 -march=armv8.4-a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16FML-NO-FP16 %s
-// GENERICV84A-FP16FML-NO-FP16: "-target-feature" "-fullfp16" "-target-feature" "-fp16fml"
-
-// RUN: %clang -target aarch64 -march=armv8.4a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16-FP16FML %s
-// RUN: %clang -target aarch64 -march=armv8.4-a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16-FP16FML %s
-// GENERICV84A-NO-FP16-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
-
 // RUN: %clang -target aarch64 -march=armv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A %s
 // RUN: %clang -target aarch64 -march=armv8.5-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A %s
 // RUN: %clang -target aarch64 -mlittle-endian -march=armv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A %s
@@ -209,9 +95,6 @@
 // RUN: %clang -target aarch64_be -mbig-endian -march=armv8.5-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-BE %s
 // GENERICV85A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.5a"
 
-// RUN: %clang -target aarch64 -march=armv8.5-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-FP16 %s
-// GENERICV85A-FP16: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.5a" "-target-feature" "+fullfp16"
-
 // RUN: %clang -target aarch64 -march=armv8.6a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV86A %s
 // RUN: %clang -target aarch64 -march=armv8.6-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV86A %s
 // RUN: %clang -target aarch64 -mlittle-endian -march=armv8.6a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV86A %s
@@ -228,51 +111,6 @@
 // RUN: %clang -target aarch64_be -mbig-endian -march=armv8.6-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV86A-BE %s
 // GENERICV86A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.6a"
 
-// The SVE extension is an optional extension for Armv8-A.
-// RUN: %clang -target aarch64 -march=armv8a+sve -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-SVE %s
-// RUN: %clang -target aarch64 -march=armv8.6a+sve -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-SVE %s
-// GENERICV8A-SVE: "-target-feature" "+sve"
-// RUN: %clang -target aarch64 -march=armv8a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-NOSVE %s
-// RUN: %clang -target aarch64 -march=armv8.6a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-NOSVE %s
-// GENERICV8A-NOSVE-NOT: "-target-feature" "+sve"
-
-// The BFloat16 extension is a mandatory component of the Armv8.6-A extensions, but is permitted as an
-// optional feature for any implementation of Armv8.2-A to Armv8.5-A (inclusive)
-// RUN: %clang -target aarch64 -march=armv8.5a+bf16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-BF16 %s
-// GENERICV85A-BF16: "-target-feature" "+bf16"
-// RUN: %clang -target aarch64 -march=armv8.5a+bf16+nobf16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-BF16-NO-BF16 %s
-// GENERICV85A-BF16-NO-BF16: "-target-feature" "-bf16"
-// RUN: %clang -target aarch64 -march=armv8.5a+bf16+sve -### -c %s 2>&1 | FileCheck -check-prefixes=GENERICV85A-BF16-SVE %s
-// GENERICV85A-BF16-SVE: "-target-feature" "+bf16" "-target-feature" "+sve"
-
-// The 8-bit integer matrix multiply extension is a mandatory component of the
-// Armv8.6-A extensions, but is permitted as an optional feature for any
-// implementation of Armv8.2-A to Armv8.5-A (inclusive)
-// RUN: %clang -target aarch64 -march=armv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=NO-I8MM %s
-// RUN: %clang -target aarch64 -march=armv8.5a+i8mm -### -c %s 2>&1 | FileCheck -check-prefix=I8MM %s
-// NO-I8MM-NOT: "-target-feature" "+i8mm"
-// I8MM: "-target-feature" "+i8mm"
-
-// The 32-bit floating point matrix multiply extension is enabled by default
-// for armv8.6-a targets (or later) with SVE, and can optionally be enabled for
-// any target from armv8.2a onwards (we don't enforce not using it with earlier
-// targets).
-// RUN: %clang -target aarch64 -march=armv8.6a       -### -c %s 2>&1 | FileCheck -check-prefix=NO-F32MM %s
-// RUN: %clang -target aarch64 -march=armv8.6a+sve   -### -c %s 2>&1 | FileCheck -check-prefix=F32MM %s
-// RUN: %clang -target aarch64 -march=armv8.5a+f32mm -### -c %s 2>&1 | FileCheck -check-prefix=F32MM %s
-// NO-F32MM-NOT: "-target-feature" "+f32mm"
-// F32MM: "-target-feature" "+f32mm"
-
-// The 64-bit floating point matrix multiply extension is not currently enabled
-// by default for any targets, because it requires an SVE vector length >= 256
-// bits. When we add a CPU which has that, then it can be enabled by default,
-// but for now it can only be used by adding the +f64mm feature.
-// RUN: %clang -target aarch64 -march=armv8.6a       -### -c %s 2>&1 | FileCheck -check-prefix=NO-F64MM %s
-// RUN: %clang -target aarch64 -march=armv8.6a+sve   -### -c %s 2>&1 | FileCheck -check-prefix=NO-F64MM %s
-// RUN: %clang -target aarch64 -march=armv8.6a+f64mm -### -c %s 2>&1 | FileCheck -check-prefix=F64MM %s
-// NO-F64MM-NOT: "-target-feature" "+f64mm"
-// F64MM: "-target-feature" "+f64mm"
-
 // RUN: %clang -target aarch64 -march=armv8.7a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV87A %s
 // RUN: %clang -target aarch64 -march=armv8.7-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV87A %s
 // RUN: %clang -target aarch64 -mlittle-endian -march=armv8.7a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV87A %s
@@ -289,12 +127,6 @@
 // RUN: %clang -target aarch64_be -mbig-endian -march=armv8.7-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV87A-BE %s
 // GENERICV87A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.7a"
 
-// Tha LD64B/ST64B accelerator extension is disabled by default.
-// RUN: %clang -target aarch64 -march=armv8.7a       -### -c %s 2>&1 | FileCheck -check-prefix=NO-LS64 %s
-// RUN: %clang -target aarch64 -march=armv8.7a+ls64 -### -c %s 2>&1 | FileCheck -check-prefix=LS64 %s
-// NO-LS64-NOT: "-target-feature" "+ls64"
-// LS64: "-target-feature" "+ls64"
-
 // RUN: %clang -target aarch64 -march=armv8.8a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV88A %s
 // RUN: %clang -target aarch64 -march=armv8.8-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV88A %s
 // RUN: %clang -target aarch64 -mlittle-endian -march=armv8.8a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV88A %s
@@ -319,15 +151,6 @@
 // RUN: %clang -target aarch64_be -mlittle-endian -march=armv9-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A %s
 // GENERICV9A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9a" "-target-feature" "+sve" "-target-feature" "+sve2"
 
-// SVE2 is enabled by default on Armv9-A but it can be disabled
-// RUN: %clang -target aarch64 -march=armv9a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
-// RUN: %clang -target aarch64 -march=armv9-a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
-// RUN: %clang -target aarch64 -mlittle-endian -march=armv9a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
-// RUN: %clang -target aarch64 -mlittle-endian -march=armv9-a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9-a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
-// GENERICV9A-NOSVE2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9a" "-target-feature" "+sve" "-target-feature" "-sve2"
-
 // RUN: %clang -target aarch64_be -march=armv9a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-BE %s
 // RUN: %clang -target aarch64_be -march=armv9-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-BE %s
 // RUN: %clang -target aarch64 -mbig-endian -march=armv9a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-BE %s
@@ -384,27 +207,6 @@
 // RUN: %clang -target aarch64_be -mbig-endian -march=armv9.3-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV93A-BE %s
 // GENERICV93A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9.3a"
 
-// fullfp16 is off by default for v8a, feature must not be mentioned
-// RUN: %clang -target aarch64 -march=armv8a  -### -c %s 2>&1 | FileCheck -check-prefix=V82ANOFP16 -check-prefix=GENERIC %s
-// RUN: %clang -target aarch64 -march=armv8-a -### -c %s 2>&1 | FileCheck -check-prefix=V82ANOFP16 -check-prefix=GENERIC %s
-// V82ANOFP16-NOT: "-target-feature" "{{[+-]}}fp16fml"
-// V82ANOFP16-NOT: "-target-feature" "{{[+-]}}fullfp16"
-// GENERIC: "-cc1"{{.*}} "-triple" "aarch64{{(--)?}}"{{.*}} "-target-cpu" "generic"
-
-// RAS is on by default for v8.2a, but can be disabled by +noras
-// RUN: %clang -target aarch64 -march=armv8.2a  -### -c %s 2>&1 | FileCheck -check-prefix=V82ARAS -check-prefix=GENERICV82A %s
-// RUN: %clang -target aarch64 -march=armv8.2-a -### -c %s 2>&1 | FileCheck -check-prefix=V82ARAS -check-prefix=GENERICV82A %s
-// V82ARAS-NOT: "-target-feature" "+ras"
-// V82ARAS-NOT: "-target-feature" "-ras"
-// RUN: %clang -target aarch64 -march=armv8.2a+noras  -### -c %s 2>&1 | FileCheck -check-prefix=V82ANORAS -check-prefix=GENERICV82A %s
-// RUN: %clang -target aarch64 -march=armv8.2-a+noras -### -c %s 2>&1 | FileCheck -check-prefix=V82ANORAS -check-prefix=GENERICV82A %s
-// V82ANORAS: "-target-feature" "-ras"
-
-// RAS is off by default for v8a, but can be enabled by +ras (this is not architecturally valid)
-// RUN: %clang -target aarch64 -march=armv8a+ras  -### -c %s 2>&1 | FileCheck -check-prefix=V8ARAS -check-prefix=GENERIC %s
-// RUN: %clang -target aarch64 -march=armv8-a+ras -### -c %s 2>&1 | FileCheck -check-prefix=V8ARAS -check-prefix=GENERIC %s
-// V8ARAS: "-target-feature" "+ras"
-
 // ================== Check whether -march accepts mixed-case values.
 // RUN: %clang -target aarch64_be -march=ARMV8.1A -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
 // RUN: %clang -target aarch64_be -march=ARMV8.1-A -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
@@ -413,24 +215,3 @@
 // RUN: %clang -target aarch64_be -mbig-endian -march=ARMv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
 // RUN: %clang -target aarch64_be -mbig-endian -march=ARMV8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
 // GENERICV81A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.1a"
-
-// ================== Check whether -mcpu and -mtune accept mixed-case values.
-// RUN: %clang -target aarch64 -mcpu=Cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-CA53 %s
-// RUN: %clang -target aarch64 -mtune=Cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-CA53-TUNE %s
-// CASE-INSENSITIVE-CA53: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a53"
-// CASE-INSENSITIVE-CA53-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
-
-// RUN: %clang -target arm64 -mcpu=cortex-A53 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-ARM64-CA53 %s
-// RUN: %clang -target arm64 -mtune=cortex-A53 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-ARM64-CA53-TUNE %s
-// CASE-INSENSITIVE-ARM64-CA53: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "cortex-a53"
-// CASE-INSENSITIVE-ARM64-CA53-TUNE: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "generic"
-
-// RUN: %clang -target aarch64 -mcpu=CORTEX-A57 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-CA57 %s
-// RUN: %clang -target aarch64 -mtune=CORTEX-A57 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-CA57-TUNE %s
-// CASE-INSENSITIVE-CA57: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a57"
-// CASE-INSENSITIVE-CA57-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
-
-// RUN: %clang -target arm64 -mcpu=Cortex-A57 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-ARM64-CA57 %s
-// RUN: %clang -target arm64 -mtune=Cortex-A57 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-ARM64-CA57-TUNE %s
-// CASE-INSENSITIVE-ARM64-CA57: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "cortex-a57"
-// CASE-INSENSITIVE-ARM64-CA57-TUNE: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "generic"
diff --git a/clang/test/Driver/aarch64-bf16.c b/clang/test/Driver/aarch64-bf16.c
new file mode 100644
--- /dev/null
+++ b/clang/test/Driver/aarch64-bf16.c
@@ -0,0 +1,8 @@
+// The BFloat16 extension is a mandatory component of the Armv8.6-A extensions, but is permitted as an
+// optional feature for any implementation of Armv8.2-A to Armv8.5-A (inclusive)
+// RUN: %clang -target aarch64 -march=armv8.5a+bf16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-BF16 %s
+// GENERICV85A-BF16: "-target-feature" "+bf16"
+// RUN: %clang -target aarch64 -march=armv8.5a+bf16+nobf16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-BF16-NO-BF16 %s
+// GENERICV85A-BF16-NO-BF16: "-target-feature" "-bf16"
+// RUN: %clang -target aarch64 -march=armv8.5a+bf16+sve -### -c %s 2>&1 | FileCheck -check-prefixes=GENERICV85A-BF16-SVE %s
+// GENERICV85A-BF16-SVE: "-target-feature" "+bf16" "-target-feature" "+sve"
diff --git a/clang/test/Driver/aarch64-cpus-1.c b/clang/test/Driver/aarch64-cpus.c
rename from clang/test/Driver/aarch64-cpus-1.c
rename to clang/test/Driver/aarch64-cpus.c
--- a/clang/test/Driver/aarch64-cpus-1.c
+++ b/clang/test/Driver/aarch64-cpus.c
@@ -1,7 +1,6 @@
-// Check target CPUs are correctly passed. See aarch64-cpus-2.c for additional tests.
-// NOTE: The tests are split across multiple files, to avoid excessive test
+// Check target CPUs are correctly passed.
+// TODO: The files should be split up by categories, e.g. by architecture versions, to avoid excessive test
 // times for large single test files.
-// TODO: The files should be split up by categories, e.g. by architecture versions.
 
 // RUN: %clang -target aarch64 -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC %s
 // RUN: %clang -target aarch64 -mcpu=generic -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC %s
@@ -515,3 +514,24 @@
 // MCPU-MTUNE-A73: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a73"
 // MCPU-MTUNE-THUNDERX2T99: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "thunderx2t99"
 // MCPU-MTUNE-THUNDERX3T110: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "thunderx3t110"
+
+// ================== Check whether -mcpu and -mtune accept mixed-case values.
+// RUN: %clang -target aarch64 -mcpu=Cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-CA53 %s
+// RUN: %clang -target aarch64 -mtune=Cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-CA53-TUNE %s
+// CASE-INSENSITIVE-CA53: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a53"
+// CASE-INSENSITIVE-CA53-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+
+// RUN: %clang -target arm64 -mcpu=cortex-A53 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-ARM64-CA53 %s
+// RUN: %clang -target arm64 -mtune=cortex-A53 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-ARM64-CA53-TUNE %s
+// CASE-INSENSITIVE-ARM64-CA53: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "cortex-a53"
+// CASE-INSENSITIVE-ARM64-CA53-TUNE: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "generic"
+
+// RUN: %clang -target aarch64 -mcpu=CORTEX-A57 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-CA57 %s
+// RUN: %clang -target aarch64 -mtune=CORTEX-A57 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-CA57-TUNE %s
+// CASE-INSENSITIVE-CA57: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a57"
+// CASE-INSENSITIVE-CA57-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+
+// RUN: %clang -target arm64 -mcpu=Cortex-A57 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-ARM64-CA57 %s
+// RUN: %clang -target arm64 -mtune=Cortex-A57 -### -c %s 2>&1 | FileCheck -check-prefix=CASE-INSENSITIVE-ARM64-CA57-TUNE %s
+// CASE-INSENSITIVE-ARM64-CA57: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "cortex-a57"
+// CASE-INSENSITIVE-ARM64-CA57-TUNE: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "generic"
diff --git a/clang/test/Driver/aarch64-fp16.c b/clang/test/Driver/aarch64-fp16.c
new file mode 100644
--- /dev/null
+++ b/clang/test/Driver/aarch64-fp16.c
@@ -0,0 +1,125 @@
+// Test that both target features fullfp16 and fp16fml are implemented and available correctly
+
+// fullfp16 is off by default for v8a, feature must not be mentioned
+// RUN: %clang -target aarch64 -march=armv8a  -### -c %s 2>&1 | FileCheck -check-prefix=V82ANOFP16 -check-prefix=GENERIC %s
+// RUN: %clang -target aarch64 -march=armv8-a -### -c %s 2>&1 | FileCheck -check-prefix=V82ANOFP16 -check-prefix=GENERIC %s
+// V82ANOFP16-NOT: "-target-feature" "{{[+-]}}fp16fml"
+// V82ANOFP16-NOT: "-target-feature" "{{[+-]}}fullfp16"
+// GENERIC: "-cc1"{{.*}} "-triple" "aarch64{{(--)?}}"{{.*}} "-target-cpu" "generic"
+
+// RUN: %clang -target aarch64 -march=armv8a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-NO-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-NO-FP16FML %s
+// GENERICV8A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fp16fml"
+// GENERICV8A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-FP16 %s
+// RUN: %clang -target aarch64 -march=armv8-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-FP16 %s
+// GENERICV8A-FP16-NOT: "-target-feature" "{{[+-]}}fp16fml"
+// GENERICV8A-FP16: "-target-feature" "+fullfp16"
+// GENERICV8A-FP16-NOT: "-target-feature" "{{[+-]}}fp16fml"
+// GENERICV8A-FP16-SAME: {{$}}
+
+// RUN: %clang -target aarch64 -march=armv8a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8-a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-FP16FML %s
+// GENERICV8A-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.2a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.2-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16FML %s
+// GENERICV82A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fp16fml"
+// GENERICV82A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.2a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16 %s
+// RUN: %clang -target aarch64 -march=armv8.2-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16 %s
+// GENERICV82A-FP16: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.2a" "-target-feature" "+fullfp16"
+// GENERICV82A-FP16-NOT: "-target-feature" "{{[+-]}}fp16fml"
+// GENERICV82A-FP16-SAME: {{$}}
+
+// RUN: %clang -target aarch64 -march=armv8.2-a+profile -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-SPE %s
+// GENERICV82A-SPE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.2a" "-target-feature" "+spe"
+
+// RUN: %clang -target aarch64 -march=armv8.2a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.2-a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16FML %s
+// GENERICV82A-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.2a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16-NO-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.2-a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16-NO-FP16FML %s
+// GENERICV82A-FP16-NO-FP16FML: "-target-feature" "+fullfp16" "-target-feature" "-fp16fml"
+
+// RUN: %clang -target aarch64 -march=armv8.2a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16FML-FP16 %s
+// RUN: %clang -target aarch64 -march=armv8.2-a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16FML-FP16 %s
+// GENERICV82A-NO-FP16FML-FP16: "-target-feature" "-fp16fml" "-target-feature" "+fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.2a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16FML-NO-FP16 %s
+// RUN: %clang -target aarch64 -march=armv8.2-a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16FML-NO-FP16 %s
+// GENERICV82A-FP16FML-NO-FP16: "-target-feature" "-fullfp16" "-target-feature" "-fp16fml"
+
+// RUN: %clang -target aarch64 -march=armv8.2a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.2-a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-NO-FP16-FP16FML %s
+// GENERICV82A-NO-FP16-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.2a+fp16+profile -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16-SPE %s
+// RUN: %clang -target aarch64 -march=armv8.2-a+fp16+profile -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV82A-FP16-SPE %s
+// GENERICV82A-FP16-SPE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.2a" "-target-feature" "+fullfp16" "-target-feature" "+spe"
+// GENERICV82A-FP16-SPE-NOT:  "-target-feature" "{{[+-]}}fp16fml"
+// GENERICV82A-FP16-SPE-SAME: {{$}}
+
+// RUN: %clang -target aarch64 -march=armv8.3a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.3-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16FML %s
+// GENERICV83A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fp16fml"
+// GENERICV83A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.3a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16 %s
+// RUN: %clang -target aarch64 -march=armv8.3-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16 %s
+// GENERICV83A-FP16: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.3a" "-target-feature" "+fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.3a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.3-a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16FML %s
+// GENERICV83A-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.3a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16-NO-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.3-a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16-NO-FP16FML %s
+// GENERICV83A-FP16-NO-FP16FML: "-target-feature" "+fullfp16" "-target-feature" "-fp16fml"
+
+// RUN: %clang -target aarch64 -march=armv8.3a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16FML-FP16 %s
+// RUN: %clang -target aarch64 -march=armv8.3-a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16FML-FP16 %s
+// GENERICV83A-NO-FP16FML-FP16: "-target-feature" "-fp16fml" "-target-feature" "+fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.3a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16FML-NO-FP16 %s
+// RUN: %clang -target aarch64 -march=armv8.3-a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-FP16FML-NO-FP16 %s
+// GENERICV83A-FP16FML-NO-FP16: "-target-feature" "-fullfp16" "-target-feature" "-fp16fml"
+
+// RUN: %clang -target aarch64 -march=armv8.3a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.3-a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-NO-FP16-FP16FML %s
+// GENERICV83A-NO-FP16-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.4a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.4-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16FML %s
+// GENERICV84A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fp16fml"
+// GENERICV84A-NO-FP16FML-NOT: "-target-feature" "{{[+-]}}fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.4a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16 %s
+// RUN: %clang -target aarch64 -march=armv8.4-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16 %s
+// GENERICV84A-FP16: "-target-feature" "+fullfp16" "-target-feature" "+fp16fml"
+
+// RUN: %clang -target aarch64 -march=armv8.4a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.4-a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16FML %s
+// GENERICV84A-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.4a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16-NO-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.4-a+fp16+nofp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16-NO-FP16FML %s
+// GENERICV84A-FP16-NO-FP16FML: "-target-feature" "+fullfp16" "-target-feature" "-fp16fml"
+
+// RUN: %clang -target aarch64 -march=armv8.4a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16FML-FP16 %s
+// RUN: %clang -target aarch64 -march=armv8.4-a+nofp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16FML-FP16 %s
+// GENERICV84A-NO-FP16FML-FP16: "-target-feature" "+fullfp16" "-target-feature" "+fp16fml"
+
+// RUN: %clang -target aarch64 -march=armv8.4a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16FML-NO-FP16 %s
+// RUN: %clang -target aarch64 -march=armv8.4-a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-FP16FML-NO-FP16 %s
+// GENERICV84A-FP16FML-NO-FP16: "-target-feature" "-fullfp16" "-target-feature" "-fp16fml"
+
+// RUN: %clang -target aarch64 -march=armv8.4a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16-FP16FML %s
+// RUN: %clang -target aarch64 -march=armv8.4-a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-NO-FP16-FP16FML %s
+// GENERICV84A-NO-FP16-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
+
+// RUN: %clang -target aarch64 -march=armv8.5-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-FP16 %s
+// GENERICV85A-FP16: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.5a" "-target-feature" "+fullfp16"
diff --git a/clang/test/Driver/aarch64-i8mm.c b/clang/test/Driver/aarch64-i8mm.c
new file mode 100644
--- /dev/null
+++ b/clang/test/Driver/aarch64-i8mm.c
@@ -0,0 +1,7 @@
+// The 8-bit integer matrix multiply extension is a mandatory component of the
+// Armv8.6-A extensions, but is permitted as an optional feature for any
+// implementation of Armv8.2-A to Armv8.5-A (inclusive)
+// RUN: %clang -target aarch64 -march=armv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=NO-I8MM %s
+// RUN: %clang -target aarch64 -march=armv8.5a+i8mm -### -c %s 2>&1 | FileCheck -check-prefix=I8MM %s
+// NO-I8MM-NOT: "-target-feature" "+i8mm"
+// I8MM: "-target-feature" "+i8mm"
diff --git a/clang/test/Driver/aarch64-ls64.c b/clang/test/Driver/aarch64-ls64.c
--- a/clang/test/Driver/aarch64-ls64.c
+++ b/clang/test/Driver/aarch64-ls64.c
@@ -1,10 +1,12 @@
 // Test that target feature ls64 is implemented and available correctly
+
 // RUN: %clang -### -target aarch64-none-none-eabi -march=armv8.7-a+ls64 %s 2>&1 | FileCheck %s
 // CHECK: "-target-feature" "+ls64"
 
 // RUN: %clang -### -target aarch64-none-none-eabi -march=armv8.7-a+nols64 %s 2>&1 | FileCheck %s --check-prefix=NO_LS64
 // NO_LS64: "-target-feature" "-ls64"
 
+// The LD64B/ST64B accelerator extension is disabled by default.
 // RUN: %clang -### -target aarch64-none-none-eabi                  %s 2>&1 | FileCheck %s --check-prefix=ABSENT_LS64
 // RUN: %clang -### -target aarch64-none-none-eabi -march=armv8.7-a %s 2>&1 | FileCheck %s --check-prefix=ABSENT_LS64
 // RUN: %clang -### -target aarch64-none-none-eabi -march=armv8.7-a %s 2>&1 | FileCheck %s --check-prefix=ABSENT_LS64
diff --git a/clang/test/Driver/aarch64-ras.c b/clang/test/Driver/aarch64-ras.c
--- a/clang/test/Driver/aarch64-ras.c
+++ b/clang/test/Driver/aarch64-ras.c
@@ -1,4 +1,6 @@
+// RAS is off by default for v8a, but can be enabled by +ras (this is not architecturally valid)
 // RUN: %clang -target aarch64-none-none-eabi -march=armv8a+ras -### -c %s 2>&1 | FileCheck --check-prefix=CHECK-RAS %s
+// RUN: %clang -target aarch64-none-none-eabi -march=armv8-a+ras -### -c %s 2>&1 | FileCheck --check-prefix=CHECK-RAS %s
 // RUN: %clang -target aarch64-none-none-eabi -mcpu=generic+ras -### -c %s 2>&1 | FileCheck --check-prefix=CHECK-RAS %s
 // RUN: %clang -target aarch64-none-none-eabi -mcpu=cortex-a75 -### -c %s 2>&1 | FileCheck --check-prefix=CHECK-RAS %s
 // RUN: %clang -target aarch64-none-none-eabi -mcpu=cortex-a55 -### -c %s 2>&1 | FileCheck --check-prefix=CHECK-RAS %s
@@ -7,3 +9,12 @@
 // RUN: %clang -target aarch64-none-none-eabi -march=armv8a+noras -### -c %s 2>&1 | FileCheck --check-prefix=CHECK-NORAS %s
 // RUN: %clang -target aarch64-none-none-eabi -mcpu=generic+noras -### -c %s 2>&1 | FileCheck --check-prefix=CHECK-NORAS %s
 // CHECK-NORAS: "-target-feature" "-ras"
+
+// RAS is on by default for v8.2a, but can be disabled by +noras
+// FIXME: in the current implementation, RAS is not on by default at all for v8.2a (the test says it all...)
+// RUN: %clang -target aarch64 -march=armv8.2a  -### -c %s 2>&1 | FileCheck -check-prefix=V82ARAS %s
+// RUN: %clang -target aarch64 -march=armv8.2-a -### -c %s 2>&1 | FileCheck -check-prefix=V82ARAS %s
+// V82ARAS-NOT: "-target-feature" "+ras"
+// V82ARAS-NOT: "-target-feature" "-ras"
+// RUN: %clang -target aarch64 -march=armv8.2a+noras  -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NORAS %s
+// RUN: %clang -target aarch64 -march=armv8.2-a+noras -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NORAS %s
diff --git a/clang/test/Driver/aarch64-sve.c b/clang/test/Driver/aarch64-sve.c
new file mode 100644
--- /dev/null
+++ b/clang/test/Driver/aarch64-sve.c
@@ -0,0 +1,27 @@
+// The SVE extension is an optional extension for Armv8-A.
+// RUN: %clang -target aarch64 -march=armv8a+sve -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-SVE %s
+// RUN: %clang -target aarch64 -march=armv8.6a+sve -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-SVE %s
+// GENERICV8A-SVE: "-target-feature" "+sve"
+// RUN: %clang -target aarch64 -march=armv8a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-NOSVE %s
+// RUN: %clang -target aarch64 -march=armv8.6a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV8A-NOSVE %s
+// GENERICV8A-NOSVE-NOT: "-target-feature" "+sve"
+
+// The 32-bit floating point matrix multiply extension is enabled by default
+// for armv8.6-a targets (or later) with SVE, and can optionally be enabled for
+// any target from armv8.2a onwards (we don't enforce not using it with earlier
+// targets).
+// RUN: %clang -target aarch64 -march=armv8.6a       -### -c %s 2>&1 | FileCheck -check-prefix=NO-F32MM %s
+// RUN: %clang -target aarch64 -march=armv8.6a+sve   -### -c %s 2>&1 | FileCheck -check-prefix=F32MM %s
+// RUN: %clang -target aarch64 -march=armv8.5a+f32mm -### -c %s 2>&1 | FileCheck -check-prefix=F32MM %s
+// NO-F32MM-NOT: "-target-feature" "+f32mm"
+// F32MM: "-target-feature" "+f32mm"
+
+// The 64-bit floating point matrix multiply extension is not currently enabled
+// by default for any targets, because it requires an SVE vector length >= 256
+// bits. When we add a CPU which has that, then it can be enabled by default,
+// but for now it can only be used by adding the +f64mm feature.
+// RUN: %clang -target aarch64 -march=armv8.6a       -### -c %s 2>&1 | FileCheck -check-prefix=NO-F64MM %s
+// RUN: %clang -target aarch64 -march=armv8.6a+sve   -### -c %s 2>&1 | FileCheck -check-prefix=NO-F64MM %s
+// RUN: %clang -target aarch64 -march=armv8.6a+f64mm -### -c %s 2>&1 | FileCheck -check-prefix=F64MM %s
+// NO-F64MM-NOT: "-target-feature" "+f64mm"
+// F64MM: "-target-feature" "+f64mm"
diff --git a/clang/test/Driver/aarch64-sve2.c b/clang/test/Driver/aarch64-sve2.c
new file mode 100644
--- /dev/null
+++ b/clang/test/Driver/aarch64-sve2.c
@@ -0,0 +1,8 @@
+// SVE2 is enabled by default on Armv9-A but it can be disabled
+// RUN: %clang -target aarch64 -march=armv9a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
+// RUN: %clang -target aarch64 -march=armv9-a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
+// RUN: %clang -target aarch64 -mlittle-endian -march=armv9a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
+// RUN: %clang -target aarch64 -mlittle-endian -march=armv9-a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv9-a+nosve2 -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV9A-NOSVE2 %s
+// GENERICV9A-NOSVE2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v9a" "-target-feature" "+sve" "-target-feature" "-sve2"