[ARM/AArch64][v8.5A] Add Armv8.5-A target

[olista01]

Summary

This patch allows targetting Armv8.5-A from Clang. Most of the
implementation is in TargetParser, so this is mostly just adding tests.

Patch by Pablo Barrio!

[SjoerdMeijer]

Looks okay to me

test/Driver/arm-cortex-cpus.c

338

nit: perhaps move this to below, where we have the other fp16 checks?

test/Preprocessor/arm-target-features.c

746

thanks for upstreaming a little bit of v8.3 and v8.4 too :-)

lib/Basic/Targets/ARM.cpp

StringRef ARMTargetInfo::getCPUAttr() const {
   case llvm::ARM::ArchKind::ARMV8_1A:
     return "8_1A";
   case llvm::ARM::ArchKind::ARMV8_2A:
     return "8_2A";
   case llvm::ARM::ArchKind::ARMV8_3A:
     return "8_3A";
   case llvm::ARM::ArchKind::ARMV8_4A:
     return "8_4A";
+  case llvm::ARM::ArchKind::ARMV8_5A:
+    return "8_5A";
   case llvm::ARM::ArchKind::ARMV8MBaseline:
     return "8M_BASE";
   case llvm::ARM::ArchKind::ARMV8MMainline:
     return "8M_MAIN";
   case llvm::ARM::ArchKind::ARMV8R:
     return "8R";
   }
 }

test/Driver/aarch64-cpus.c

 // 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
+// RUN: %clang -target aarch64 -mlittle-endian -march=armv8.5-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A %s
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A %s
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.5-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A %s
+// GENERICV85A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8.5a"
+
+// RUN: %clang -target aarch64_be -march=armv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-BE %s
+// RUN: %clang -target aarch64_be -march=armv8.5-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-BE %s
+// RUN: %clang -target aarch64 -mbig-endian -march=armv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-BE %s
+// RUN: %clang -target aarch64 -mbig-endian -march=armv8.5-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-BE %s
+// RUN: %clang -target aarch64_be -mbig-endian -march=armv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV85A-BE %s
+// 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"
+
 // 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"
 
 // 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

test/Driver/arm-cortex-cpus.c

 // RUN: %clang -target armebv8.4a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V84A %s
 // RUN: %clang -target armv8.4a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V84A %s
 // RUN: %clang -target armeb -march=armebv8.4a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V84A %s
 // RUN: %clang -target armeb -march=armebv8.4-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V84A %s
 // RUN: %clang -target arm -march=armebv8.4a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V84A %s
 // RUN: %clang -target arm -march=armebv8.4-a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V84A %s
 // CHECK-BE-V84A: "-cc1"{{.*}} "-triple" "armebv8.4{{.*}}" "-target-cpu" "generic"
 
+// RUN: %clang -target armv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V85A %s
+// RUN: %clang -target arm -march=armv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V85A %s
+// RUN: %clang -target arm -march=armv8.5-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V85A %s
+// RUN: %clang -target arm -march=armv8.5a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V85A %s
+// RUN: %clang -target armv8.5a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V85A %s
+// RUN: %clang -target arm -march=armv8.5a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V85A %s
+// RUN: %clang -target arm -mlittle-endian -march=armv8.5-a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V85A %s
+// CHECK-V85A: "-cc1"{{.*}} "-triple" "armv8.5{{.*}}" "-target-cpu" "generic"
+
+// RUN: %clang -target armebv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V85A %s
+// RUN: %clang -target armv8.5a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V85A %s
+// RUN: %clang -target armeb -march=armebv8.5a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V85A %s
+// RUN: %clang -target armeb -march=armebv8.5-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V85A %s
+// RUN: %clang -target arm -march=armebv8.5a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V85A %s
+// RUN: %clang -target arm -march=armebv8.5-a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V85A %s
+// CHECK-BE-V85A: "-cc1"{{.*}} "-triple" "armebv8.5{{.*}}" "-target-cpu" "generic"
+
 // 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-linux-eabi -mcpu=cortex-a53+fp16 -### -c %s 2>&1 | FileCheck --check-prefix CHECK-CORTEX-A53-FP16 %s
 // RUN: %clang -target armv8a-linux-eabi -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-FP16-NOT: "-target-feature" "{{[+-]}}fp16fml"
 // CHECK-CORTEX-A53-NOFP16: "-cc1" {{.*}}"-target-cpu" "cortex-a53" {{.*}}"-target-feature" "-fullfp16" "-target-feature" "-fp16fml"
 
 // RUN: %clang -target armv8a-linux-eabi -march=armv8-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V8A-NOFP16FML %s

 // CHECK-V84A-NOFP16FML-FP16: "-target-feature" "+fullfp16" "-target-feature" "+fp16fml"
 
 // RUN: %clang -target armv8a-linux-eabi -march=armv8.4-a+fp16fml+nofp16 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V84A-FP16FML-NOFP16 %s
 // CHECK-V84A-FP16FML-NOFP16: "-target-feature" "-fullfp16" "-target-feature" "-fp16fml"
 
 // RUN: %clang -target armv8a-linux-eabi -march=armv8.4-a+nofp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V84A-NOFP16-FP16FML %s
 // CHECK-V84A-NOFP16-FP16FML: "-target-feature" "+fp16fml" "-target-feature" "+fullfp16"
 
+// RUN: %clang -target armv8a-linux-eabi -march=armv8.5-a+fp16 -### -c %s 2>&1 | FileCheck --check-prefix CHECK-V85A-FP16 %s
+// CHECK-V85A-FP16: "-cc1"{{.*}} "-triple" "armv8.5{{.*}}" "-target-cpu" "generic" {{.*}}"-target-feature" "+fullfp16"
+
 // RUN: %clang -target arm -march=armv8.2-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-FULLFP16-SOFT %s
 // RUN: %clang -target arm -march=armv8.2-a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-FULLFP16-SOFT %s
 // RUN: %clang -target arm -march=armv8.2-a+fp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-FULLFP16-SOFT %s
 // RUN: %clang -target arm -march=armv8.2-a+fp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-FULLFP16-SOFT %s
 // RUN: %clang -target arm -march=armv8.4-a+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-FULLFP16-SOFT %s
 // RUN: %clang -target arm -march=armv8.4-a+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-FULLFP16-SOFT %s
 // RUN: %clang -target arm -march=armv8.4-a+fp16+fp16fml -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-FULLFP16-SOFT %s
 // RUN: %clang -target arm -march=armv8.4-a+fp16fml+fp16 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-FULLFP16-SOFT %s

test/Preprocessor/arm-target-features.c

 // CHECK-V81A: #define __ARM_FP 0xe
 
 // RUN: %clang -target armv8.2a-none-none-eabi -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=CHECK-V82A %s
 // CHECK-V82A: #define __ARM_ARCH 8
 // CHECK-V82A: #define __ARM_ARCH_8_2A__ 1
 // CHECK-V82A: #define __ARM_ARCH_PROFILE 'A'
 // CHECK-V82A: #define __ARM_FEATURE_QRDMX 1
 // CHECK-V82A: #define __ARM_FP 0xe
+
+// RUN: %clang -target armv8.3a-none-none-eabi -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=CHECK-V83A %s
+// CHECK-V83A: #define __ARM_ARCH 8
+// CHECK-V83A: #define __ARM_ARCH_8_3A__ 1
+// CHECK-V83A: #define __ARM_ARCH_PROFILE 'A'
+
+// RUN: %clang -target armv8.4a-none-none-eabi -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=CHECK-V84A %s
+// CHECK-V84A: #define __ARM_ARCH 8
+// CHECK-V84A: #define __ARM_ARCH_8_4A__ 1
+// CHECK-V84A: #define __ARM_ARCH_PROFILE 'A'
+
+// RUN: %clang -target armv8.5a-none-none-eabi -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=CHECK-V85A %s
+// CHECK-V85A: #define __ARM_ARCH 8
+// CHECK-V85A: #define __ARM_ARCH_8_5A__ 1
+// CHECK-V85A: #define __ARM_ARCH_PROFILE 'A'