Teaches clang about Exynos-M1

[MinSeongKIM]

Summary

Adds support for the new Exynos-M1 ARMv8-A core.

[MinSeongKIM]

Code rewritten

[christof]

LGTM. But since this is my first review, I would like somebody else to sign off on this as well.

[t.p.northover]

Looks fine to me too. Thanks!

Tim.

cfe/trunk/lib/Basic/Targets.cpp

bool setABI(const std::string &Name) override {
 
     ABI = Name;
     return true;
   }
 
   bool setCPU(const std::string &Name) override {
     bool CPUKnown = llvm::StringSwitch<bool>(Name)
                         .Case("generic", true)
-                        .Cases("cortex-a53", "cortex-a57", "cortex-a72", "cortex-a35", true)
+                        .Cases("cortex-a53", "cortex-a57", "cortex-a72",
+                               "cortex-a35", "exynos-m1", true)
                         .Case("cyclone", true)
                         .Default(false);
     return CPUKnown;
   }
 
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override {
     // Target identification.

cfe/trunk/lib/Driver/Tools.cpp

 
 // Check if the CPU name and feature modifiers in -mcpu are legal. If yes,
 // decode CPU and feature.
 static bool DecodeAArch64Mcpu(const Driver &D, StringRef Mcpu, StringRef &CPU,
                               std::vector<const char *> &Features) {
   std::pair<StringRef, StringRef> Split = Mcpu.split("+");
   CPU = Split.first;
   if (CPU == "cyclone" || CPU == "cortex-a53" || CPU == "cortex-a57" ||
-      CPU == "cortex-a72" || CPU == "cortex-a35") {
+      CPU == "cortex-a72" || CPU == "cortex-a35" || CPU == "exynos-m1") {
     Features.push_back("+neon");
     Features.push_back("+crc");
     Features.push_back("+crypto");
   } else if (CPU == "generic") {
     Features.push_back("+neon");
   } else {
     return false;
   }

cfe/trunk/test/CodeGen/arm-target-features.c

 // CHECK-VFP4-DIV: "target-features"="+dsp,+hwdiv,+hwdiv-arm,+neon,+vfp4"
 
 
 // RUN: %clang_cc1 -triple thumbv7s-apple-ios7.0 -target-cpu cyclone -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu cortex-a35 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple armv8-linux-gnueabi -target-cpu cortex-a53 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu cortex-a57 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu cortex-a72 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
+// RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu exynos-m1 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // CHECK-BASIC-V8: "target-features"="+crc,+crypto,+dsp,+fp-armv8,+hwdiv,+hwdiv-arm,+neon"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-r5 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-DIV
 // CHECK-VFP3-D16-DIV: "target-features"="+d16,+dsp,+hwdiv,+hwdiv-arm,+vfp3"
 
 
 // RUN: %clang_cc1 -triple armv7-linux-gnueabi -target-cpu cortex-r4f -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-THUMB-DIV

cfe/trunk/test/Driver/aarch64-cpus.c

 // CA72: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a72"
 
 // 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
 // RUN: %clang -target arm64 -mtune=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA72 %s
 // RUN: %clang -target arm64 -mlittle-endian -mtune=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-CA72 %s
 // ARM64-CA72: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "cortex-a72"
 
+// 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 -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1 %s
+// RUN: %clang -target aarch64 -mlittle-endian -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1 %s
+// RUN: %clang -target aarch64_be -mlittle-endian -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1 %s
+// M1: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "exynos-m1"
+
+// RUN: %clang -target arm64 -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-M1 %s
+// RUN: %clang -target arm64 -mlittle-endian -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-M1 %s
+// RUN: %clang -target arm64 -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-M1 %s
+// RUN: %clang -target arm64 -mlittle-endian -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-M1 %s
+// ARM64-M1: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "exynos-m1"
+
 // RUN: %clang -target aarch64_be -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC-BE %s
 // RUN: %clang -target aarch64 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC-BE %s
 // RUN: %clang -target aarch64_be -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC-BE %s
 // GENERIC-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic"
 
 // RUN: %clang -target aarch64_be -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35-BE %s
 // RUN: %clang -target aarch64 -mbig-endian -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35-BE %s
 // RUN: %clang -target aarch64_be -mbig-endian -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CA35-BE %s

 // RUN: %clang -target aarch64_be -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-BE %s
 // RUN: %clang -target aarch64 -mbig-endian -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-BE %s
 // RUN: %clang -target aarch64_be -mbig-endian -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-BE %s
 // RUN: %clang -target aarch64_be -mtune=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-BE %s
 // RUN: %clang -target aarch64 -mbig-endian -mtune=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-BE %s
 // RUN: %clang -target aarch64_be -mbig-endian -mtune=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CA72-BE %s
 // CA72-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "cortex-a72"
 
+// RUN: %clang -target aarch64_be -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-BE %s
+// RUN: %clang -target aarch64 -mbig-endian -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-BE %s
+// RUN: %clang -target aarch64_be -mbig-endian -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-BE %s
+// RUN: %clang -target aarch64_be -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-BE %s
+// RUN: %clang -target aarch64 -mbig-endian -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-BE %s
+// RUN: %clang -target aarch64_be -mbig-endian -mtune=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=M1-BE %s
+// M1-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "exynos-m1"
+
 // RUN: %clang -target aarch64 -mcpu=cortex-a57 -mtune=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=MCPU-MTUNE %s
 // RUN: %clang -target aarch64 -mtune=cortex-a53 -mcpu=cortex-a57  -### -c %s 2>&1 | FileCheck -check-prefix=MCPU-MTUNE %s
 // RUN: %clang -target aarch64 -mcpu=cortex-a72 -mtune=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=MCPU-MTUNE %s
 // RUN: %clang -target aarch64 -mtune=cortex-a53 -mcpu=cortex-a72  -### -c %s 2>&1 | FileCheck -check-prefix=MCPU-MTUNE %s
 // MCPU-MTUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a53"
 
 // RUN: %clang -target aarch64 -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
 // RUN: %clang -target aarch64 -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s

cfe/trunk/test/Driver/arm-cortex-cpus.c

 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-r5 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7R-THUMB %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-r7 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7R-THUMB %s
 // CHECK-BE-CPUV7R-THUMB: "-cc1"{{.*}} "-triple" "thumbebv7r-{{.*}}
 
 // RUN: %clang -target arm -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
+// RUN: %clang -target arm -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a35 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a53 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a57 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a72 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
+// RUN: %clang -target arm -mcpu=exynos-m1 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
 // CHECK-CPUV8A: "-cc1"{{.*}} "-triple" "armv8-{{.*}}
 
 // RUN: %clang -target armeb -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
 // RUN: %clang -target armeb -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
 // RUN: %clang -target armeb -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
 // RUN: %clang -target armeb -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
+// RUN: %clang -target armeb -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a35 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a53 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a57 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a72 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
+// RUN: %clang -target arm -mcpu=exynos-m1 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
 // CHECK-BE-CPUV8A: "-cc1"{{.*}} "-triple" "armebv8-{{.*}}
 
 // RUN: %clang -target arm -mcpu=cortex-a35 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a53 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a57 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a72 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
+// RUN: %clang -target arm -mcpu=exynos-m1 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a35 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a53 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a57 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a72 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
+// RUN: %clang -target arm -mcpu=exynos-m1 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
 // CHECK-CPUV8A-THUMB: "-cc1"{{.*}} "-triple" "thumbv8-{{.*}}
 
 // RUN: %clang -target armeb -mcpu=cortex-a35 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
 // RUN: %clang -target armeb -mcpu=cortex-a53 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
 // RUN: %clang -target armeb -mcpu=cortex-a57 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
 // RUN: %clang -target armeb -mcpu=cortex-a72 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
+// RUN: %clang -target armeb -mcpu=exynos-m1 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a35 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a53 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a57 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a72 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
+// RUN: %clang -target arm -mcpu=exynos-m1 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
 // CHECK-BE-CPUV8A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv8-{{.*}}
 
 // ================== Check whether -mcpu accepts mixed-case values.
 // RUN: %clang -target arm-linux-gnueabi -mcpu=Cortex-a5 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-CPUV7A %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-A7 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-CPUV7A %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=CORTEX-a8 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-CPUV7A %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=Cortex-A9 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-CPUV7A %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=corteX-A12 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CASE-INSENSITIVE-CPUV7A %s

cfe/trunk/test/Preprocessor/aarch64-target-features.c

 // RUN: %clang -target aarch64 -mtune=CYCLONE -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MTUNE-CYCLONE %s
 // CHECK-MTUNE-CYCLONE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+zcm" "-target-feature" "+zcz"
 
 // RUN: %clang -target aarch64 -mcpu=cyclone -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-CYCLONE %s
 // RUN: %clang -target aarch64 -mcpu=cortex-a35 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-A35 %s
 // RUN: %clang -target aarch64 -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-A53 %s
 // RUN: %clang -target aarch64 -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-A57 %s
 // RUN: %clang -target aarch64 -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-A72 %s
+// RUN: %clang -target aarch64 -mcpu=exynos-m1 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-M1 %s
 // CHECK-MCPU-CYCLONE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto" "-target-feature" "+zcm" "-target-feature" "+zcz"
 // CHECK-MCPU-A35: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
 // CHECK-MCPU-A53: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
 // CHECK-MCPU-A57: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
 // CHECK-MCPU-A72: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
+// CHECK-MCPU-M1: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
 
 // RUN: %clang -target x86_64-apple-macosx -arch arm64 -### -c %s 2>&1 | FileCheck --check-prefix=CHECK-ARCH-ARM64 %s
 // CHECK-ARCH-ARM64: "-target-cpu" "cyclone" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto" "-target-feature" "+zcm" "-target-feature" "+zcz"
 
 // RUN: %clang -target aarch64 -march=armv8-a+fp+simd+crc+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MARCH-1 %s
 // RUN: %clang -target aarch64 -march=armv8-a+nofp+nosimd+nocrc+nocrypto+fp+simd+crc+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MARCH-1 %s
 // RUN: %clang -target aarch64 -march=armv8-a+nofp+nosimd+nocrc+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MARCH-2 %s
 // RUN: %clang -target aarch64 -march=armv8-a+fp+simd+crc+crypto+nofp+nosimd+nocrc+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MARCH-2 %s