Index: test/Driver/aarch64-cpus.c
===================================================================
--- test/Driver/aarch64-cpus.c
+++ test/Driver/aarch64-cpus.c
@@ -4,9 +4,10 @@
 // RUN: %clang -target aarch64 -mcpu=generic -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC %s
 // RUN: %clang -target aarch64 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=generic -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC %s
-// RUN: %clang -target aarch64_be -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=generic -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC %s
-// GENERIC: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+// RUN: %clang -target aarch64_be -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC-LE %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=generic -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC-LE %s
+// GENERIC: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// GENERIC-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
 
 // RUN: %clang -target arm64 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERIC %s
 // RUN: %clang -target arm64 -mcpu=generic -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERIC %s
@@ -25,12 +26,14 @@
 
 // RUN: %clang -target aarch64 -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35 %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35-LE %s
 // RUN: %clang -target aarch64 -mtune=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35-TUNE %s
 // RUN: %clang -target aarch64 -mlittle-endian -mtune=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35-TUNE %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35-TUNE %s
-// CA35: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a35"
-// CA35-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35-TUNE-LE %s
+// CA35: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "cortex-a35"
+// CA35-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "cortex-a35"
+// CA35-TUNE: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// CA35-TUNE-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
 
 // RUN: %clang -target arm64 -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA35 %s
 // RUN: %clang -target arm64 -mlittle-endian -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA35 %s
@@ -41,11 +44,13 @@
 
 // RUN: %clang -target aarch64 -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CA53 %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CA53 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CA53 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CA53-LE %s
 // RUN: %clang -target aarch64 -mtune=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CA53-TUNE %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CA53-TUNE %s
-// CA53: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a53"
-// CA53-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CA53-TUNE-LE %s
+// CA53: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "cortex-a53"
+// CA53-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "cortex-a53"
+// CA53-TUNE: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// CA53-TUNE-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
 
 // RUN: %clang -target arm64 -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA53 %s
 // RUN: %clang -target arm64 -mlittle-endian -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA53 %s
@@ -56,11 +61,13 @@
 
 // RUN: %clang -target aarch64 -mcpu=cortex-a55 -### -c %s 2>&1 | FileCheck -check-prefix=CA55 %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=cortex-a55 -### -c %s 2>&1 | FileCheck -check-prefix=CA55 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a55 -### -c %s 2>&1 | FileCheck -check-prefix=CA55 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a55 -### -c %s 2>&1 | FileCheck -check-prefix=CA55-LE %s
 // RUN: %clang -target aarch64 -mtune=cortex-a55 -### -c %s 2>&1 | FileCheck -check-prefix=CA55-TUNE %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a55 -### -c %s 2>&1 | FileCheck -check-prefix=CA55-TUNE %s
-// CA55: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a55"
-// CA55-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a55 -### -c %s 2>&1 | FileCheck -check-prefix=CA55-TUNE-LE %s
+// CA55: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "cortex-a55"
+// CA55-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "cortex-a55"
+// CA55-TUNE: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// CA55-TUNE-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
 
 // RUN: %clang -target arm64 -mcpu=cortex-a55 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA55 %s
 // RUN: %clang -target arm64 -mlittle-endian -mcpu=cortex-a55 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA55 %s
@@ -71,12 +78,14 @@
 
 // RUN: %clang -target aarch64 -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CA57 %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CA57 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CA57 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CA57-LE %s
 // RUN: %clang -target aarch64 -mtune=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CA57-TUNE %s
 // RUN: %clang -target aarch64 -mlittle-endian -mtune=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CA57-TUNE %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CA57-TUNE %s
-// CA57: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a57"
-// CA57-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CA57-TUNE-LE %s
+// CA57: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "cortex-a57"
+// CA57-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "cortex-a57"
+// CA57-TUNE: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// CA57-TUNE-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
 
 // RUN: %clang -target arm64 -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA57 %s
 // RUN: %clang -target arm64 -mlittle-endian -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA57 %s
@@ -87,12 +96,14 @@
 
 // RUN: %clang -target aarch64 -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72 %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-LE %s
 // RUN: %clang -target aarch64 -mtune=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-TUNE %s
 // RUN: %clang -target aarch64 -mlittle-endian -mtune=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-TUNE %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-TUNE %s
-// CA72: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a72"
-// CA72-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-TUNE-LE %s
+// CA72: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "cortex-a72"
+// CA72-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "cortex-a72"
+// CA72-TUNE: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// CA72-TUNE-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
 
 // RUN: %clang -target arm64 -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA72 %s
 // RUN: %clang -target arm64 -mlittle-endian -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA72 %s
@@ -103,12 +114,14 @@
 
 // RUN: %clang -target aarch64 -mcpu=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A73 %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A73 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A73 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A73-LE %s
 // RUN: %clang -target aarch64 -mtune=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A73-TUNE %s
 // RUN: %clang -target aarch64 -mlittle-endian -mtune=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A73-TUNE %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A73-TUNE %s
-// CORTEX-A73: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a73"
-// CORTEX-A73-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A73-TUNE-LE %s
+// CORTEX-A73: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "cortex-a73"
+// CORTEX-A73-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "cortex-a73"
+// CORTEX-A73-TUNE: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// CORTEX-A73-TUNE-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
 
 // RUN: %clang -target arm64 -mcpu=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CORTEX-A73 %s
 // RUN: %clang -target arm64 -mlittle-endian -mcpu=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CORTEX-A73 %s
@@ -119,12 +132,14 @@
 
 // RUN: %clang -target aarch64 -mcpu=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A75 %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A75 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A75 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A75-LE %s
 // RUN: %clang -target aarch64 -mtune=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A75-TUNE %s
 // RUN: %clang -target aarch64 -mlittle-endian -mtune=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A75-TUNE %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A75-TUNE %s
-// CORTEX-A75: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a75"
-// CORTEX-A75-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+// RUN: %clang -target aarch64_be -mlittle-endian -mtune=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=CORTEX-A75-TUNE-LE %s
+// CORTEX-A75: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "cortex-a75"
+// CORTEX-A75-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "cortex-a75"
+// CORTEX-A75-TUNE: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// CORTEX-A75-TUNE-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
 
 // RUN: %clang -target arm64 -mcpu=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CORTEX-A75 %s
 // RUN: %clang -target arm64 -mlittle-endian -mcpu=cortex-a75 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CORTEX-A75 %s
@@ -135,12 +150,14 @@
 
 // RUN: %clang -target aarch64 -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1 %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-LE %s
 // RUN: %clang -target aarch64 -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-TUNE %s
 // RUN: %clang -target aarch64 -mlittle-endian -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-TUNE %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-TUNE %s
-// M1: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "exynos-m1"
-// M1-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+// RUN: %clang -target aarch64_be -mlittle-endian -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-TUNE-LE %s
+// M1: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "exynos-m1"
+// M1-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "exynos-m1"
+// M1-TUNE: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// M1-TUNE-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
 
 // RUN: %clang -target aarch64 -mcpu=exynos-m2 -### -c %s 2>&1 | FileCheck -check-prefix=M2 %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=exynos-m2 -### -c %s 2>&1 | FileCheck -check-prefix=M2 %s
@@ -227,12 +244,14 @@
 
 // RUN: %clang -target aarch64 -mcpu=thunderx2t99 -### -c %s 2>&1 | FileCheck -check-prefix=THUNDERX2T99 %s
 // RUN: %clang -target aarch64 -mlittle-endian -mcpu=thunderx2t99 -### -c %s 2>&1 | FileCheck -check-prefix=THUNDERX2T99 %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=thunderx2t99 -### -c %s 2>&1 | FileCheck -check-prefix=THUNDERX2T99 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mcpu=thunderx2t99 -### -c %s 2>&1 | FileCheck -check-prefix=THUNDERX2T99-LE %s
 // RUN: %clang -target aarch64 -mtune=thunderx2t99 -### -c %s 2>&1 | FileCheck -check-prefix=THUNDERX2T99-TUNE %s
 // RUN: %clang -target aarch64 -mlittle-endian -mtune=thunderx2t99 -### -c %s 2>&1 | FileCheck -check-prefix=THUNDERX2T99-TUNE %s
-// RUN: %clang -target aarch64_be -mlittle-endian -mtune=thunderx2t99 -### -c %s 2>&1 | FileCheck -check-prefix=THUNDERX2T99-TUNE %s
-// THUNDERX2T99: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "thunderx2t99" "-target-feature" "+v8.1a"
-// THUNDERX2T99-TUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic"
+// RUN: %clang -target aarch64_be -mlittle-endian -mtune=thunderx2t99 -### -c %s 2>&1 | FileCheck -check-prefix=THUNDERX2T99-TUNE-LE %s
+// THUNDERX2T99: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "thunderx2t99" "-target-feature" "+v8.1a"
+// THUNDERX2T99-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "thunderx2t99" "-target-feature" "+v8.1a"
+// THUNDERX2T99-TUNE: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic"
+// THUNDERX2T99-TUNE-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic"
 // THUNDERX2T99-TUNE-NOT: +v8.1a
 
 // RUN: %clang -target arm64 -mcpu=thunderx2t99 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-THUNDERX2T99 %s
@@ -363,9 +382,10 @@
 // RUN: %clang -target aarch64 -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
 // RUN: %clang -target aarch64 -mlittle-endian -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
 // RUN: %clang -target aarch64 -mlittle-endian -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
-// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
-// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
-// GENERICV81A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.1a"
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-LE %s
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-LE %s
+// GENERICV81A: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.1a"
+// GENERICV81A-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.1a"
 
 // RUN: %clang -target arm64 -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERICV81A %s
 // RUN: %clang -target arm64 -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERICV81A %s
@@ -409,9 +429,10 @@
 // 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
 // RUN: %clang -target aarch64 -mlittle-endian -march=armv8.3-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A %s
-// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.3a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A %s
-// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.3-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A %s
-// GENERICV83A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.3a"
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.3a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-LE %s
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.3-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-LE %s
+// GENERICV83A: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.3a"
+// GENERICV83A-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.3a"
 
 // RUN: %clang -target aarch64_be -march=armv8.3a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-BE %s
 // RUN: %clang -target aarch64_be -march=armv8.3-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV83A-BE %s
@@ -428,9 +449,10 @@
 // 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
 // RUN: %clang -target aarch64 -mlittle-endian -march=armv8.4-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A %s
-// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.4a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A %s
-// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.4-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A %s
-// GENERICV84A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.4a"
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.4a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-LE %s
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.4-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-LE %s
+// GENERICV84A: "-cc1"{{.*}} "-triple" "aarch64"{{.*}} "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.4a"
+// GENERICV84A-LE: "-cc1"{{.*}} "-triple" "aarch64--"{{.*}} "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.4a"
 
 // RUN: %clang -target aarch64_be -march=armv8.4a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-BE %s
 // RUN: %clang -target aarch64_be -march=armv8.4-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV84A-BE %s