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

[olista01]

Summary

This patch allows targeting Armv8.5-A, adding the architecture to
tablegen and setting the options to be identical to Armv8.4-A for the
time being. Subsequent patches will add support for the different
features included in the Armv8.5-A Reference Manual.

Patch by Pablo Barrio!

[dmgreen]

lib/Target/ARM/ARM.td

456

Is this intentionally diffferent to the 8.4 and aarch64 8.5 strings?

unittests/Support/TargetParserTest.cpp

29

Should this not all include 8.4?

29

Oh, that's a different patch. Ignore me.

[olista01]

Make description of feature consistent with others.

[dmgreen]

LGTM

include/llvm/ADT/Triple.h

enum ArchType {
     wasm64,         // WebAssembly with 64-bit pointers
     renderscript32, // 32-bit RenderScript
     renderscript64, // 64-bit RenderScript
     LastArchType = renderscript64
   };
   enum SubArchType {
     NoSubArch,
 
+    ARMSubArch_v8_5a,
     ARMSubArch_v8_4a,
     ARMSubArch_v8_3a,
     ARMSubArch_v8_2a,
     ARMSubArch_v8_1a,
     ARMSubArch_v8,
     ARMSubArch_v8r,
     ARMSubArch_v8m_baseline,
     ARMSubArch_v8m_mainline,

include/llvm/Support/AArch64TargetParser.def

AARCH64_ARCH("armv8.3-a", ARMV8_3A, "8.3-A", "v8.3a",
              (AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
               AArch64::AEK_SIMD | AArch64::AEK_RAS | AArch64::AEK_LSE |
               AArch64::AEK_RDM | AArch64::AEK_RCPC))
 AARCH64_ARCH("armv8.4-a", ARMV8_4A, "8.4-A", "v8.4a",
              ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
              (AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
               AArch64::AEK_SIMD | AArch64::AEK_RAS | AArch64::AEK_LSE |
               AArch64::AEK_RDM | AArch64::AEK_RCPC | AArch64::AEK_DOTPROD))
+AARCH64_ARCH("armv8.5-a", ARMV8_5A, "8.5-A", "v8.5a",
+             ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
+             (AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
+              AArch64::AEK_SIMD | AArch64::AEK_RAS | AArch64::AEK_LSE |
+              AArch64::AEK_RDM | AArch64::AEK_RCPC | AArch64::AEK_DOTPROD))
 #undef AARCH64_ARCH
 
 #ifndef AARCH64_ARCH_EXT_NAME
 #define AARCH64_ARCH_EXT_NAME(NAME, ID, FEATURE, NEGFEATURE)
 #endif
 // FIXME: This would be nicer were it tablegen
 AARCH64_ARCH_EXT_NAME("invalid",  AArch64::AEK_INVALID,  nullptr,  nullptr)
 AARCH64_ARCH_EXT_NAME("none",     AArch64::AEK_NONE,     nullptr,  nullptr)

include/llvm/Support/ARMTargetParser.def

ARM_ARCH("armv8.3-a", ARMV8_3A, "8.3-A", "v8.3a",
          ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
          (ARM::AEK_SEC | ARM::AEK_MP | ARM::AEK_VIRT | ARM::AEK_HWDIVARM |
           ARM::AEK_HWDIVTHUMB | ARM::AEK_DSP | ARM::AEK_CRC | ARM::AEK_RAS))
 ARM_ARCH("armv8.4-a", ARMV8_4A, "8.4-A", "v8.4a",
          ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
          (ARM::AEK_SEC | ARM::AEK_MP | ARM::AEK_VIRT | ARM::AEK_HWDIVARM |
           ARM::AEK_HWDIVTHUMB | ARM::AEK_DSP | ARM::AEK_CRC | ARM::AEK_RAS |
           ARM::AEK_DOTPROD))
+ARM_ARCH("armv8.5-a", ARMV8_5A, "8.5-A", "v8.5a",
+         ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
+         (ARM::AEK_SEC | ARM::AEK_MP | ARM::AEK_VIRT | ARM::AEK_HWDIVARM |
+          ARM::AEK_HWDIVTHUMB | ARM::AEK_DSP | ARM::AEK_CRC | ARM::AEK_RAS |
+          ARM::AEK_DOTPROD))
 ARM_ARCH("armv8-r", ARMV8R, "8-R", "v8r", ARMBuildAttrs::CPUArch::v8_R,
           FK_NEON_FP_ARMV8,
           (ARM::AEK_MP | ARM::AEK_VIRT | ARM::AEK_HWDIVARM | ARM::AEK_HWDIVTHUMB |
            ARM::AEK_DSP | ARM::AEK_CRC))
 ARM_ARCH("armv8-m.base", ARMV8MBaseline, "8-M.Baseline", "v8m.base",
           ARMBuildAttrs::CPUArch::v8_M_Base, FK_NONE, ARM::AEK_HWDIVTHUMB)
 ARM_ARCH("armv8-m.main", ARMV8MMainline, "8-M.Mainline", "v8m.main",
           ARMBuildAttrs::CPUArch::v8_M_Main, FK_FPV5_D16, ARM::AEK_HWDIVTHUMB)

lib/Support/TargetParser.cpp

bool llvm::AArch64::getArchFeatures(AArch64::ArchKind AK,
   if (AK == AArch64::ArchKind::ARMV8_1A)
     Features.push_back("+v8.1a");
   if (AK == AArch64::ArchKind::ARMV8_2A)
     Features.push_back("+v8.2a");
   if (AK == AArch64::ArchKind::ARMV8_3A)
     Features.push_back("+v8.3a");
   if (AK == AArch64::ArchKind::ARMV8_4A)
     Features.push_back("+v8.4a");
+  if (AK == AArch64::ArchKind::ARMV8_5A)
+    Features.push_back("+v8.5a");
 
   return AK != AArch64::ArchKind::INVALID;
 }
 
 StringRef llvm::AArch64::getArchName(ArchKind AK) {
   return AArch64ARCHNames[static_cast<unsigned>(AK)].getName();
 }
 
return StringSwitch<StringRef>(Arch)
       .Case("v7r", "v7-r")
       .Case("v7m", "v7-m")
       .Case("v7em", "v7e-m")
       .Cases("v8", "v8a", "v8l", "aarch64", "arm64", "v8-a")
       .Case("v8.1a", "v8.1-a")
       .Case("v8.2a", "v8.2-a")
       .Case("v8.3a", "v8.3-a")
       .Case("v8.4a", "v8.4-a")
+      .Case("v8.5a", "v8.5-a")
       .Case("v8r", "v8-r")
       .Case("v8m.base", "v8-m.base")
       .Case("v8m.main", "v8-m.main")
       .Default(Arch);
 }
 
 // MArch is expected to be of the form (arm|thumb)?(eb)?(v.+)?(eb)?, but
 // (iwmmxt|xscale)(eb)? is also permitted. If the former, return
ARM::ProfileKind ARM::parseArchProfile(StringRef Arch) {
   case ARM::ArchKind::ARMV7A:
   case ARM::ArchKind::ARMV7VE:
   case ARM::ArchKind::ARMV7K:
   case ARM::ArchKind::ARMV8A:
   case ARM::ArchKind::ARMV8_1A:
   case ARM::ArchKind::ARMV8_2A:
   case ARM::ArchKind::ARMV8_3A:
   case ARM::ArchKind::ARMV8_4A:
+  case ARM::ArchKind::ARMV8_5A:
     return ARM::ProfileKind::A;
   case ARM::ArchKind::ARMV2:
   case ARM::ArchKind::ARMV2A:
   case ARM::ArchKind::ARMV3:
   case ARM::ArchKind::ARMV3M:
   case ARM::ArchKind::ARMV4:
   case ARM::ArchKind::ARMV4T:
   case ARM::ArchKind::ARMV5T:
unsigned llvm::ARM::parseArchVersion(StringRef Arch) {
   case ARM::ArchKind::ARMV7EM:
   case ARM::ArchKind::ARMV7K:
     return 7;
   case ARM::ArchKind::ARMV8A:
   case ARM::ArchKind::ARMV8_1A:
   case ARM::ArchKind::ARMV8_2A:
   case ARM::ArchKind::ARMV8_3A:
   case ARM::ArchKind::ARMV8_4A:
+  case ARM::ArchKind::ARMV8_5A:
   case ARM::ArchKind::ARMV8R:
   case ARM::ArchKind::ARMV8MBaseline:
   case ARM::ArchKind::ARMV8MMainline:
     return 8;
   case ARM::ArchKind::INVALID:
     return 0;
   }
   llvm_unreachable("Unhandled architecture");

lib/Support/Triple.cpp

static Triple::SubArchType parseSubArch(StringRef SubArchName) {
   case ARM::ArchKind::ARMV8_1A:
     return Triple::ARMSubArch_v8_1a;
   case ARM::ArchKind::ARMV8_2A:
     return Triple::ARMSubArch_v8_2a;
   case ARM::ArchKind::ARMV8_3A:
     return Triple::ARMSubArch_v8_3a;
   case ARM::ArchKind::ARMV8_4A:
     return Triple::ARMSubArch_v8_4a;
+  case ARM::ArchKind::ARMV8_5A:
+    return Triple::ARMSubArch_v8_5a;
   case ARM::ArchKind::ARMV8R:
     return Triple::ARMSubArch_v8r;
   case ARM::ArchKind::ARMV8MBaseline:
     return Triple::ARMSubArch_v8m_baseline;
   case ARM::ArchKind::ARMV8MMainline:
     return Triple::ARMSubArch_v8m_mainline;
   default:
     return Triple::NoSubArch;

lib/Target/AArch64/AArch64.td

def HasV8_2aOps : SubtargetFeature<"v8.2a", "HasV8_2aOps", "true",
   "Support ARM v8.2a instructions", [HasV8_1aOps, FeatureRAS]>;
 
 def HasV8_3aOps : SubtargetFeature<"v8.3a", "HasV8_3aOps", "true",
   "Support ARM v8.3a instructions", [HasV8_2aOps, FeatureRCPC]>;
 
 def HasV8_4aOps : SubtargetFeature<"v8.4a", "HasV8_4aOps", "true",
   "Support ARM v8.4a instructions", [HasV8_3aOps, FeatureDotProd]>;
 
+def HasV8_5aOps : SubtargetFeature<"v8.5a", "HasV8_5aOps", "true",
+  "Support ARM v8.5a instructions", [HasV8_4aOps]>;
+
 //===----------------------------------------------------------------------===//
 // Register File Description
 //===----------------------------------------------------------------------===//
 
 include "AArch64RegisterInfo.td"
 include "AArch64RegisterBanks.td"
 include "AArch64CallingConvention.td"
 

lib/Target/AArch64/AArch64InstrInfo.td

 def HasV8_1a         : Predicate<"Subtarget->hasV8_1aOps()">,
                                  AssemblerPredicate<"HasV8_1aOps", "armv8.1a">;
 def HasV8_2a         : Predicate<"Subtarget->hasV8_2aOps()">,
                                  AssemblerPredicate<"HasV8_2aOps", "armv8.2a">;
 def HasV8_3a         : Predicate<"Subtarget->hasV8_3aOps()">,
                                  AssemblerPredicate<"HasV8_3aOps", "armv8.3a">;
 def HasV8_4a         : Predicate<"Subtarget->hasV8_4aOps()">,
                                  AssemblerPredicate<"HasV8_4aOps", "armv8.4a">;
+def HasV8_5a         : Predicate<"Subtarget->hasV8_5aOps()">,
+                                 AssemblerPredicate<"HasV8_5aOps", "armv8.5a">;
 def HasFPARMv8       : Predicate<"Subtarget->hasFPARMv8()">,
                                AssemblerPredicate<"FeatureFPARMv8", "fp-armv8">;
 def HasNEON          : Predicate<"Subtarget->hasNEON()">,
                                  AssemblerPredicate<"FeatureNEON", "neon">;
 def HasCrypto        : Predicate<"Subtarget->hasCrypto()">,
                                  AssemblerPredicate<"FeatureCrypto", "crypto">;
 def HasSM4           : Predicate<"Subtarget->hasSM4()">,
                                  AssemblerPredicate<"FeatureSM4", "sm4">;

lib/Target/AArch64/AArch64Subtarget.h

 protected:
   /// ARMProcFamily - ARM processor family: Cortex-A53, Cortex-A57, and others.
   ARMProcFamilyEnum ARMProcFamily = Others;
 
   bool HasV8_1aOps = false;
   bool HasV8_2aOps = false;
   bool HasV8_3aOps = false;
   bool HasV8_4aOps = false;
+  bool HasV8_5aOps = false;
 
   bool HasFPARMv8 = false;
   bool HasNEON = false;
   bool HasCrypto = false;
   bool HasDotProd = false;
   bool HasCRC = false;
   bool HasLSE = false;
   bool HasRAS = false;
public:
   ARMProcFamilyEnum getProcFamily() const {
     return ARMProcFamily;
   }
 
   bool hasV8_1aOps() const { return HasV8_1aOps; }
   bool hasV8_2aOps() const { return HasV8_2aOps; }
   bool hasV8_3aOps() const { return HasV8_3aOps; }
   bool hasV8_4aOps() const { return HasV8_4aOps; }
+  bool hasV8_5aOps() const { return HasV8_5aOps; }
 
   bool hasZeroCycleRegMove() const { return HasZeroCycleRegMove; }
 
   bool hasZeroCycleZeroing() const { return HasZeroCycleZeroing; }
 
   bool hasZeroCycleZeroingFPWorkaround() const {
     return HasZeroCycleZeroingFPWorkaround;
   }

lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp

default:
       // that was the traditional meaning of crypto.
     case AArch64::ArchKind::ARMV8_1A:
     case AArch64::ArchKind::ARMV8_2A:
     case AArch64::ArchKind::ARMV8_3A:
       RequestedExtensions.push_back("sha2");
       RequestedExtensions.push_back("aes");
       break;
     case AArch64::ArchKind::ARMV8_4A:
+    case AArch64::ArchKind::ARMV8_5A:
       RequestedExtensions.push_back("sm4");
       RequestedExtensions.push_back("sha3");
       RequestedExtensions.push_back("sha2");
       RequestedExtensions.push_back("aes");
       break;
     }
   } else if (NoCrypto) {
     switch (ArchKind) {
     default:
       // Map 'generic' (and others) to sha2 and aes, because
       // that was the traditional meaning of crypto.
     case AArch64::ArchKind::ARMV8_1A:
     case AArch64::ArchKind::ARMV8_2A:
     case AArch64::ArchKind::ARMV8_3A:
       RequestedExtensions.push_back("nosha2");
       RequestedExtensions.push_back("noaes");
       break;
     case AArch64::ArchKind::ARMV8_4A:
+    case AArch64::ArchKind::ARMV8_5A:
       RequestedExtensions.push_back("nosm4");
       RequestedExtensions.push_back("nosha3");
       RequestedExtensions.push_back("nosha2");
       RequestedExtensions.push_back("noaes");
       break;
     }
   }
 }

lib/Target/ARM/ARM.td

 def HasV8_3aOps   : SubtargetFeature<"v8.3a", "HasV8_3aOps", "true",
                                    "Support ARM v8.3a instructions",
                                    [HasV8_2aOps]>;
 
 def HasV8_4aOps   : SubtargetFeature<"v8.4a", "HasV8_4aOps", "true",
                                    "Support ARM v8.4a instructions",
                                    [HasV8_3aOps, FeatureDotProd]>;
 
+def HasV8_5aOps   : SubtargetFeature<"v8.5a", "HasV8_5aOps", "true",
+                                   "Support Armv8.5-A instructions",
+                                   [HasV8_4aOps]>;
+
 //===----------------------------------------------------------------------===//
 // ARM Processor subtarget features.
 //
 
 def ProcA5      : SubtargetFeature<"a5", "ARMProcFamily", "CortexA5",
                                    "Cortex-A5 ARM processors", []>;
 def ProcA7      : SubtargetFeature<"a7", "ARMProcFamily", "CortexA7",
                                    "Cortex-A7 ARM processors", []>;
def ARMv84a   : Architecture<"armv8.4-a", "ARMv84a",  [HasV8_4aOps,
                                                        FeatureTrustZone,
                                                        FeatureMP,
                                                        FeatureVirtualization,
                                                        FeatureCrypto,
                                                        FeatureCRC,
                                                        FeatureRAS,
                                                        FeatureDotProd]>;
 
+def ARMv85a   : Architecture<"armv8.5-a", "ARMv85a",  [HasV8_5aOps,
+                                                       FeatureAClass,
+                                                       FeatureDB,
+                                                       FeatureFPARMv8,
+                                                       FeatureNEON,
+                                                       FeatureDSP,
+                                                       FeatureTrustZone,
+                                                       FeatureMP,
+                                                       FeatureVirtualization,
+                                                       FeatureCrypto,
+                                                       FeatureCRC,
+                                                       FeatureRAS,
+                                                       FeatureDotProd]>;
+
 def ARMv8r    : Architecture<"armv8-r",   "ARMv8r",   [HasV8Ops,
                                                        FeatureRClass,
                                                        FeatureDB,
                                                        FeatureDFB,
                                                        FeatureDSP,
                                                        FeatureCRC,
                                                        FeatureMP,
                                                        FeatureVirtualization,

lib/Target/ARM/ARMInstrInfo.td

 def HasV8_1a         : Predicate<"Subtarget->hasV8_1aOps()">,
                                  AssemblerPredicate<"HasV8_1aOps", "armv8.1a">;
 def HasV8_2a         : Predicate<"Subtarget->hasV8_2aOps()">,
                                  AssemblerPredicate<"HasV8_2aOps", "armv8.2a">;
 def HasV8_3a         : Predicate<"Subtarget->hasV8_3aOps()">,
                                  AssemblerPredicate<"HasV8_3aOps", "armv8.3a">;
 def HasV8_4a         : Predicate<"Subtarget->hasV8_4aOps()">,
                                  AssemblerPredicate<"HasV8_4aOps", "armv8.4a">;
+def HasV8_5a         : Predicate<"Subtarget->hasV8_5aOps()">,
+                                 AssemblerPredicate<"HasV8_5aOps", "armv8.5a">;
 def NoVFP            : Predicate<"!Subtarget->hasVFP2()">;
 def HasVFP2          : Predicate<"Subtarget->hasVFP2()">,
                                  AssemblerPredicate<"FeatureVFP2", "VFP2">;
 def HasVFP3          : Predicate<"Subtarget->hasVFP3()">,
                                  AssemblerPredicate<"FeatureVFP3", "VFP3">;
 def HasVFP4          : Predicate<"Subtarget->hasVFP4()">,
                                  AssemblerPredicate<"FeatureVFP4", "VFP4">;
 def HasDPVFP         : Predicate<"!Subtarget->isFPOnlySP()">,

lib/Target/ARM/ARMSubtarget.h

enum ARMArchEnum {
     ARMv7em,
     ARMv7m,
     ARMv7r,
     ARMv7ve,
     ARMv81a,
     ARMv82a,
     ARMv83a,
     ARMv84a,
+    ARMv85a,
     ARMv8a,
     ARMv8mBaseline,
     ARMv8mMainline,
     ARMv8r
   };
 
 public:
   /// What kind of timing do load multiple/store multiple instructions have.
protected:
   bool HasV6KOps = false;
   bool HasV6T2Ops = false;
   bool HasV7Ops = false;
   bool HasV8Ops = false;
   bool HasV8_1aOps = false;
   bool HasV8_2aOps = false;
   bool HasV8_3aOps = false;
   bool HasV8_4aOps = false;
+  bool HasV8_5aOps = false;
   bool HasV8MBaselineOps = false;
   bool HasV8MMainlineOps = false;
 
   /// HasVFPv2, HasVFPv3, HasVFPv4, HasFPARMv8, HasNEON - Specify what
   /// floating point ISAs are supported.
   bool HasVFPv2 = false;
   bool HasVFPv3 = false;
   bool HasVFPv4 = false;
public:
   bool hasV6KOps()  const { return HasV6KOps; }
   bool hasV6T2Ops() const { return HasV6T2Ops; }
   bool hasV7Ops()   const { return HasV7Ops;  }
   bool hasV8Ops()   const { return HasV8Ops;  }
   bool hasV8_1aOps() const { return HasV8_1aOps; }
   bool hasV8_2aOps() const { return HasV8_2aOps; }
   bool hasV8_3aOps() const { return HasV8_3aOps; }
   bool hasV8_4aOps() const { return HasV8_4aOps; }
+  bool hasV8_5aOps() const { return HasV8_5aOps; }
   bool hasV8MBaselineOps() const { return HasV8MBaselineOps; }
   bool hasV8MMainlineOps() const { return HasV8MMainlineOps; }
 
   /// @{
   /// These functions are obsolete, please consider adding subtarget features
   /// or properties instead of calling them.
   bool isCortexA5() const { return ARMProcFamily == CortexA5; }
   bool isCortexA7() const { return ARMProcFamily == CortexA7; }

lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp

case ARM::ArchKind::ARMV7M:
     setAttributeItem(THUMB_ISA_use, AllowThumb32, false);
     break;
 
   case ARM::ArchKind::ARMV8A:
   case ARM::ArchKind::ARMV8_1A:
   case ARM::ArchKind::ARMV8_2A:
   case ARM::ArchKind::ARMV8_3A:
   case ARM::ArchKind::ARMV8_4A:
+  case ARM::ArchKind::ARMV8_5A:
     setAttributeItem(CPU_arch_profile, ApplicationProfile, false);
     setAttributeItem(ARM_ISA_use, Allowed, false);
     setAttributeItem(THUMB_ISA_use, AllowThumb32, false);
     setAttributeItem(MPextension_use, Allowed, false);
     setAttributeItem(Virtualization_use, AllowTZVirtualization, false);
     break;
 
   case ARM::ArchKind::ARMV8MBaseline:

unittests/Support/TargetParserTest.cpp

 #include "llvm/Support/ARMBuildAttributes.h"
 #include "gtest/gtest.h"
 #include <string>
 
 using namespace llvm;
 
 namespace {
 const char *ARMArch[] = {
-    "armv2",       "armv2a",       "armv3",       "armv3m",    "armv4",
-    "armv4t",      "armv5",        "armv5t",      "armv5e",    "armv5te",
-    "armv5tej",    "armv6",        "armv6j",      "armv6k",    "armv6hl",
-    "armv6t2",     "armv6kz",      "armv6z",      "armv6zk",   "armv6-m",
-    "armv6m",      "armv6sm",      "armv6s-m",    "armv7-a",   "armv7",
-    "armv7a",      "armv7ve",      "armv7hl",     "armv7l",    "armv7-r",
-    "armv7r",      "armv7-m",      "armv7m",      "armv7k",    "armv7s",
-    "armv7e-m",    "armv7em",      "armv8-a",     "armv8",     "armv8a",
-    "armv8l",      "armv8.1-a",    "armv8.1a",    "armv8.2-a", "armv8.2a",
-    "armv8.3-a",   "armv8.3a",     "armv8-r",     "armv8r",    "armv8-m.base",
-    "armv8m.base", "armv8-m.main", "armv8m.main", "iwmmxt",    "iwmmxt2",
-    "xscale"};
+    "armv2",       "armv2a",       "armv3",       "armv3m",       "armv4",
+    "armv4t",      "armv5",        "armv5t",      "armv5e",       "armv5te",
+    "armv5tej",    "armv6",        "armv6j",      "armv6k",       "armv6hl",
+    "armv6t2",     "armv6kz",      "armv6z",      "armv6zk",      "armv6-m",
+    "armv6m",      "armv6sm",      "armv6s-m",    "armv7-a",      "armv7",
+    "armv7a",      "armv7ve",      "armv7hl",     "armv7l",       "armv7-r",
+    "armv7r",      "armv7-m",      "armv7m",      "armv7k",       "armv7s",
+    "armv7e-m",    "armv7em",      "armv8-a",     "armv8",        "armv8a",
+    "armv8l",      "armv8.1-a",    "armv8.1a",    "armv8.2-a",    "armv8.2a",
+    "armv8.3-a",   "armv8.3a",     "armv8.5-a",   "armv8.5a",     "armv8-r",
+    "armv8r",      "armv8-m.base", "armv8m.base", "armv8-m.main", "armv8m.main",
+    "iwmmxt",      "iwmmxt2",      "xscale"
+};
 
 bool testARMCPU(StringRef CPUName, StringRef ExpectedArch,
                 StringRef ExpectedFPU, unsigned ExpectedFlags,
                 StringRef CPUAttr) {
   ARM::ArchKind AK = ARM::parseCPUArch(CPUName);
   bool pass = ARM::getArchName(AK).equals(ExpectedArch);
   unsigned FPUKind = ARM::getDefaultFPU(CPUName, AK);
   pass &= ARM::getFPUName(FPUKind).equals(ExpectedFPU);
EXPECT_TRUE(
                           ARMBuildAttrs::CPUArch::v8_A));
   EXPECT_TRUE(
       testARMArch("armv8.2-a", "generic", "v8.2a",
                           ARMBuildAttrs::CPUArch::v8_A));
   EXPECT_TRUE(
       testARMArch("armv8.3-a", "generic", "v8.3a",
                           ARMBuildAttrs::CPUArch::v8_A));
   EXPECT_TRUE(
+      testARMArch("armv8.5-a", "generic", "v8.5a",
+                          ARMBuildAttrs::CPUArch::v8_A));
+  EXPECT_TRUE(
       testARMArch("armv8-r", "cortex-r52", "v8r",
                           ARMBuildAttrs::CPUArch::v8_R));
   EXPECT_TRUE(
       testARMArch("armv8-m.base", "generic", "v8m.base",
                           ARMBuildAttrs::CPUArch::v8_M_Base));
   EXPECT_TRUE(
       testARMArch("armv8-m.main", "generic", "v8m.main",
                           ARMBuildAttrs::CPUArch::v8_M_Main));

 
 TEST(TargetParserTest, ARMparseArchEndianAndISA) {
   const char *Arch[] = {
       "v2",   "v2a",    "v3",    "v3m",    "v4",    "v4t",    "v5",    "v5t",
       "v5e",  "v5te",   "v5tej", "v6",     "v6j",   "v6k",    "v6hl",  "v6t2",
       "v6kz", "v6z",    "v6zk",  "v6-m",   "v6m",   "v6sm",   "v6s-m", "v7-a",
       "v7",   "v7a",    "v7ve",  "v7hl",   "v7l",   "v7-r",   "v7r",   "v7-m",
       "v7m",  "v7k",    "v7s",   "v7e-m",  "v7em",  "v8-a",   "v8",    "v8a",
-      "v8l",  "v8.1-a", "v8.1a", "v8.2-a", "v8.2a", "v8.3-a", "v8.3a", "v8-r"};
+      "v8l",  "v8.1-a", "v8.1a", "v8.2-a", "v8.2a", "v8.3-a", "v8.3a", "v8.5-a",
+      "v8.5a", "v8-r"
+  };
 
   for (unsigned i = 0; i < array_lengthof(Arch); i++) {
     std::string arm_1 = "armeb" + (std::string)(Arch[i]);
     std::string arm_2 = "arm" + (std::string)(Arch[i]) + "eb";
     std::string arm_3 = "arm" + (std::string)(Arch[i]);
     std::string thumb_1 = "thumbeb" + (std::string)(Arch[i]);
     std::string thumb_2 = "thumb" + (std::string)(Arch[i]) + "eb";
     std::string thumb_3 = "thumb" + (std::string)(Arch[i]);
case ARM::ArchKind::ARMV8R:
       break;
     case ARM::ArchKind::ARMV7A:
     case ARM::ArchKind::ARMV7VE:
     case ARM::ArchKind::ARMV7K:
     case ARM::ArchKind::ARMV8A:
     case ARM::ArchKind::ARMV8_1A:
     case ARM::ArchKind::ARMV8_2A:
     case ARM::ArchKind::ARMV8_3A:
+    case ARM::ArchKind::ARMV8_5A:
       EXPECT_EQ(ARM::ProfileKind::A, ARM::parseArchProfile(ARMArch[i]));
       break;
     default:
       EXPECT_EQ(ARM::ProfileKind::INVALID, ARM::parseArchProfile(ARMArch[i]));
       break;
     }
   }
 }
TEST(TargetParserTest, testAArch64Arch) {
   EXPECT_TRUE(testAArch64Arch("armv8-a", "cortex-a53", "v8",
                               ARMBuildAttrs::CPUArch::v8_A));
   EXPECT_TRUE(testAArch64Arch("armv8.1-a", "generic", "v8.1a",
                               ARMBuildAttrs::CPUArch::v8_A));
   EXPECT_TRUE(testAArch64Arch("armv8.2-a", "generic", "v8.2a",
                               ARMBuildAttrs::CPUArch::v8_A));
   EXPECT_TRUE(testAArch64Arch("armv8.3-a", "generic", "v8.3a",
                               ARMBuildAttrs::CPUArch::v8_A));
+  EXPECT_TRUE(testAArch64Arch("armv8.5-a", "generic", "v8.5a",
+                              ARMBuildAttrs::CPUArch::v8_A));
 }
 
 bool testAArch64Extension(StringRef CPUName, AArch64::ArchKind AK,
                           StringRef ArchExt) {
   return AArch64::getDefaultExtensions(CPUName, AK) &
          AArch64::parseArchExt(ArchExt);
 }