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[AArch64] Add support for the 'R' architecture profile.
This change introduces subtarget features to predicate certain instructions and system registers that are available only on 'A' profile targets. Those features are not present when targeting a generic CPU, which is the default processor. In other words the generic CPU now means the intersection of 'A' and 'R' profiles. To maintain backwards compatibility we enable the features that correspond to -march=armv8-a when the architecture is not explicitly specified on the command line. References: https://developer.arm.com/documentation/ddi0600/latest Differential Revision: https://reviews.llvm.org/D110065
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‎clang/lib/Basic/Targets/AArch64.cpp

+13-2
Original file line numberDiff line numberDiff line change
@@ -51,6 +51,15 @@ static StringRef getArchVersionString(llvm::AArch64::ArchKind Kind) {
5151
}
5252
}
5353

54+
StringRef AArch64TargetInfo::getArchProfile() const {
55+
switch (ArchKind) {
56+
case llvm::AArch64::ArchKind::ARMV8R:
57+
return "R";
58+
default:
59+
return "A";
60+
}
61+
}
62+
5463
AArch64TargetInfo::AArch64TargetInfo(const llvm::Triple &Triple,
5564
const TargetOptions &Opts)
5665
: TargetInfo(Triple), ABI("aapcs") {
@@ -257,7 +266,7 @@ void AArch64TargetInfo::getTargetDefines(const LangOptions &Opts,
257266
// ACLE predefines. Many can only have one possible value on v8 AArch64.
258267
Builder.defineMacro("__ARM_ACLE", "200");
259268
Builder.defineMacro("__ARM_ARCH", getArchVersionString(ArchKind));
260-
Builder.defineMacro("__ARM_ARCH_PROFILE", "'A'");
269+
Builder.defineMacro("__ARM_ARCH_PROFILE", "'" + getArchProfile() + "'");
261270

262271
Builder.defineMacro("__ARM_64BIT_STATE", "1");
263272
Builder.defineMacro("__ARM_PCS_AAPCS64", "1");
@@ -511,7 +520,7 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
511520
HasMatmulFP32 = false;
512521
HasLSE = false;
513522

514-
ArchKind = llvm::AArch64::ArchKind::ARMV8A;
523+
ArchKind = llvm::AArch64::ArchKind::INVALID;
515524

516525
for (const auto &Feature : Features) {
517526
if (Feature == "+neon")
@@ -573,6 +582,8 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
573582
HasSM4 = true;
574583
if (Feature == "+strict-align")
575584
HasUnaligned = false;
585+
if (Feature == "+v8a")
586+
ArchKind = llvm::AArch64::ArchKind::ARMV8A;
576587
if (Feature == "+v8.1a")
577588
ArchKind = llvm::AArch64::ArchKind::ARMV8_1A;
578589
if (Feature == "+v8.2a")

‎clang/lib/Basic/Targets/AArch64.h

+1
Original file line numberDiff line numberDiff line change
@@ -59,6 +59,7 @@ class LLVM_LIBRARY_VISIBILITY AArch64TargetInfo : public TargetInfo {
5959
static const Builtin::Info BuiltinInfo[];
6060

6161
std::string ABI;
62+
StringRef getArchProfile() const;
6263

6364
public:
6465
AArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);

‎clang/lib/Driver/ToolChains/Arch/AArch64.cpp

+3
Original file line numberDiff line numberDiff line change
@@ -213,6 +213,9 @@ void aarch64::getAArch64TargetFeatures(const Driver &D,
213213
else if (Args.hasArg(options::OPT_arch) || isCPUDeterminedByTriple(Triple))
214214
success = getAArch64ArchFeaturesFromMcpu(
215215
D, getAArch64TargetCPU(Args, Triple, A), Args, Features);
216+
else
217+
// Default to 'A' profile if the architecture is not specified.
218+
success = getAArch64ArchFeaturesFromMarch(D, "armv8-a", Args, Features);
216219

217220
if (success && (A = Args.getLastArg(clang::driver::options::OPT_mtune_EQ)))
218221
success =

‎clang/test/Driver/aarch64-cpus.c

+7
Original file line numberDiff line numberDiff line change
@@ -490,6 +490,13 @@
490490
// MCPU-MTUNE-THUNDERX2T99: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "thunderx2t99"
491491
// MCPU-MTUNE-THUNDERX3T110: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "thunderx3t110"
492492

493+
// RUN: %clang -target aarch64 -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC-V8A %s
494+
// RUN: %clang -target aarch64 -march=armv8-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC-V8A %s
495+
// GENERIC-V8A: "-cc1"{{.*}} "-triple" "aarch64{{(--)?}}"{{.*}} "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8a"
496+
497+
// RUN: %clang -target aarch64 -march=armv8-r -### -c %s 2>&1 | FileCheck -check-prefix=GENERIC-V8R %s
498+
// GENERIC-V8R: "-cc1"{{.*}} "-triple" "aarch64{{(--)?}}"{{.*}} "-target-cpu" "generic" "-target-feature" "+neon" "-target-feature" "+v8r"
499+
493500
// RUN: %clang -target aarch64 -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
494501
// RUN: %clang -target aarch64 -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
495502
// RUN: %clang -target aarch64 -mlittle-endian -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s

‎clang/test/Preprocessor/aarch64-target-features.c

+21-12
Original file line numberDiff line numberDiff line change
@@ -57,6 +57,15 @@
5757
// CHECK-NOT: __ARM_FEATURE_SVE_BITS 1024
5858
// CHECK-NOT: __ARM_FEATURE_SVE_BITS 2048
5959

60+
// RUN: %clang -target aarch64-arm-eabi -march=armv8-r -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-R-PROFILE
61+
// RUN: %clang -target arm64-none-linux-gnu -march=armv8-r -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-R-PROFILE
62+
// CHECK-R-PROFILE: __ARM_ARCH_PROFILE 'R'
63+
64+
// RUN: %clang -target aarch64-arm-eabi -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-A-PROFILE
65+
// RUN: %clang -target aarch64-arm-eabi -march=armv8-a -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-A-PROFILE
66+
// RUN: %clang -target arm64-none-linux-gnu -march=armv8-a -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-A-PROFILE
67+
// CHECK-A-PROFILE: __ARM_ARCH_PROFILE 'A'
68+
6069
// RUN: %clang -target aarch64_be-eabi -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-BIGENDIAN
6170
// CHECK-BIGENDIAN: __ARM_BIG_ENDIAN 1
6271

@@ -239,7 +248,7 @@
239248

240249
// ================== Check whether -mtune accepts mixed-case features.
241250
// RUN: %clang -target aarch64 -mtune=CYCLONE -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MTUNE-CYCLONE %s
242-
// CHECK-MTUNE-CYCLONE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+zcm" "-target-feature" "+zcz"
251+
// CHECK-MTUNE-CYCLONE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+v8a" "-target-feature" "+zcm" "-target-feature" "+zcz"
243252

244253
// RUN: %clang -target aarch64 -mcpu=apple-a7 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-APPLE-A7 %s
245254
// RUN: %clang -target aarch64 -mcpu=apple-a8 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-APPLE-A7 %s
@@ -258,28 +267,28 @@
258267
// RUN: %clang -target aarch64 -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-A72 %s
259268
// RUN: %clang -target aarch64 -mcpu=cortex-a73 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-CORTEX-A73 %s
260269
// RUN: %clang -target aarch64 -mcpu=cortex-r82 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-CORTEX-R82 %s
261-
// RUN: %clang -target aarch64 -mcpu=exynos-m3 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-M1 %s
270+
// RUN: %clang -target aarch64 -mcpu=exynos-m3 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-M3 %s
262271
// RUN: %clang -target aarch64 -mcpu=exynos-m4 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-M4 %s
263272
// RUN: %clang -target aarch64 -mcpu=exynos-m5 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-M4 %s
264273
// RUN: %clang -target aarch64 -mcpu=kryo -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-KRYO %s
265274
// RUN: %clang -target aarch64 -mcpu=thunderx2t99 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-THUNDERX2T99 %s
266275
// RUN: %clang -target aarch64 -mcpu=a64fx -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-A64FX %s
267276
// RUN: %clang -target aarch64 -mcpu=carmel -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-CARMEL %s
268-
// CHECK-MCPU-APPLE-A7: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crypto" "-target-feature" "+zcm" "-target-feature" "+zcz" "-target-feature" "+sha2" "-target-feature" "+aes"
277+
// CHECK-MCPU-APPLE-A7: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crypto" "-target-feature" "+zcm" "-target-feature" "+zcz" "-target-feature" "+sha2" "-target-feature" "+aes"
269278
// CHECK-MCPU-APPLE-A10: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto" "-target-feature" "+rdm" "-target-feature" "+zcm" "-target-feature" "+zcz" "-target-feature" "+sha2" "-target-feature" "+aes"
270279
// CHECK-MCPU-APPLE-A11: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.2a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto" "-target-feature" "+fullfp16" "-target-feature" "+ras" "-target-feature" "+lse" "-target-feature" "+rdm" "-target-feature" "+zcm" "-target-feature" "+zcz" "-target-feature" "+sha2" "-target-feature" "+aes"
271280
// CHECK-MCPU-APPLE-A12: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.3a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto" "-target-feature" "+fullfp16" "-target-feature" "+ras" "-target-feature" "+lse" "-target-feature" "+rdm" "-target-feature" "+rcpc" "-target-feature" "+zcm" "-target-feature" "+zcz" "-target-feature" "+sha2" "-target-feature" "+aes"
272281
// CHECK-MCPU-A34: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc"
273282
// CHECK-MCPU-APPLE-A13: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.4a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto" "-target-feature" "+dotprod" "-target-feature" "+fullfp16" "-target-feature" "+ras" "-target-feature" "+lse" "-target-feature" "+rdm" "-target-feature" "+rcpc" "-target-feature" "+zcm" "-target-feature" "+zcz" "-target-feature" "+fp16fml" "-target-feature" "+sm4" "-target-feature" "+sha3" "-target-feature" "+sha2" "-target-feature" "+aes"
274-
// CHECK-MCPU-A35: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
275-
// CHECK-MCPU-A53: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
276-
// CHECK-MCPU-A57: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
277-
// CHECK-MCPU-A72: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
278-
// CHECK-MCPU-CORTEX-A73: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
283+
// CHECK-MCPU-A35: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
284+
// CHECK-MCPU-A53: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
285+
// CHECK-MCPU-A57: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
286+
// CHECK-MCPU-A72: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
287+
// CHECK-MCPU-CORTEX-A73: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
279288
// CHECK-MCPU-CORTEX-R82: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8r" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+dotprod" "-target-feature" "+fp16fml" "-target-feature" "+ras" "-target-feature" "+lse" "-target-feature" "+rdm" "-target-feature" "+rcpc" "-target-feature" "+fullfp16"
280-
// CHECK-MCPU-M1: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
289+
// CHECK-MCPU-M3: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
281290
// CHECK-MCPU-M4: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto" "-target-feature" "+dotprod" "-target-feature" "+fullfp16"
282-
// CHECK-MCPU-KRYO: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
291+
// CHECK-MCPU-KRYO: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
283292
// CHECK-MCPU-THUNDERX2T99: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto"
284293
// CHECK-MCPU-A64FX: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.2a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto" "-target-feature" "+fullfp16" "-target-feature" "+ras" "-target-feature" "+lse" "-target-feature" "+rdm" "-target-feature" "+sve" "-target-feature" "+sha2"
285294
// CHECK-MCPU-CARMEL: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+v8.2a" "-target-feature" "+fp-armv8" "-target-feature" "+neon" "-target-feature" "+crc" "-target-feature" "+crypto" "-target-feature" "+fullfp16" "-target-feature" "+ras" "-target-feature" "+lse" "-target-feature" "+rdm" "-target-feature" "+sha2" "-target-feature" "+aes"
@@ -360,7 +369,7 @@
360369
// RUN: %clang -target aarch64 -march=armv8.3a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO82 %s
361370
// RUN: %clang -target aarch64 -march=armv8.3a+nocrypto+crypto+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-NOCRYPTO82 %s
362371

363-
// CHECK-NOCRYPTO8A: "-target-feature" "+neon" "-target-feature" "-crypto" "-target-feature" "-sha2" "-target-feature" "-aes" "-target-abi" "aapcs"
372+
// CHECK-NOCRYPTO8A: "-target-feature" "+neon" "-target-feature" "+v8a" "-target-feature" "-crypto" "-target-feature" "-sha2" "-target-feature" "-aes" "-target-abi" "aapcs"
364373
// CHECK-NOCRYPTO81: "-target-feature" "+neon" "-target-feature" "+v8.1a" "-target-feature" "-crypto" "-target-feature" "-sha2" "-target-feature" "-aes" "-target-abi" "aapcs"
365374
// CHECK-NOCRYPTO82: "-target-feature" "+neon" "-target-feature" "+v8.{{.}}a" "-target-feature" "-crypto" "-target-feature" "-sha2" "-target-feature" "-aes" "-target-feature" "-sm4" "-target-feature" "-sha3" "-target-abi" "aapcs"
366375
//
@@ -411,7 +420,7 @@
411420

412421
// RUN: %clang -target aarch64 -mcpu=cyclone+nocrc+nocrypto -march=armv8-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-MARCH %s
413422
// RUN: %clang -target aarch64 -march=armv8-a -mcpu=cyclone+nocrc+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-MARCH %s
414-
// CHECK-MCPU-MARCH: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+zcm" "-target-feature" "+zcz"
423+
// CHECK-MCPU-MARCH: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+v8a" "-target-feature" "+zcm" "-target-feature" "+zcz"
415424

416425
// RUN: %clang -target aarch64 -mcpu=cortex-a53 -mtune=cyclone -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-MTUNE %s
417426
// RUN: %clang -target aarch64 -mtune=cyclone -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-MCPU-MTUNE %s

‎llvm/lib/Support/AArch64TargetParser.cpp

+2
Original file line numberDiff line numberDiff line change
@@ -120,6 +120,8 @@ bool AArch64::getExtensionFeatures(uint64_t Extensions,
120120

121121
bool AArch64::getArchFeatures(AArch64::ArchKind AK,
122122
std::vector<StringRef> &Features) {
123+
if (AK == ArchKind::ARMV8A)
124+
Features.push_back("+v8a");
123125
if (AK == ArchKind::ARMV8_1A)
124126
Features.push_back("+v8.1a");
125127
if (AK == ArchKind::ARMV8_2A)

‎llvm/lib/Target/AArch64/AArch64.td

+23-14
Original file line numberDiff line numberDiff line change
@@ -449,14 +449,21 @@ def FeatureSMEI64 : SubtargetFeature<"sme-i64", "HasSMEI64", "true",
449449
def FeatureAppleA7SysReg : SubtargetFeature<"apple-a7-sysreg", "HasAppleA7SysReg", "true",
450450
"Apple A7 (the CPU formerly known as Cyclone)">;
451451

452+
def FeatureEL2VMSA : SubtargetFeature<"el2vmsa", "HasEL2VMSA", "true",
453+
"Enable Exception Level 2 Virtual Memory System Architecture">;
454+
455+
def FeatureEL3 : SubtargetFeature<"el3", "HasEL3", "true",
456+
"Enable Exception Level 3">;
452457

453458
//===----------------------------------------------------------------------===//
454459
// Architectures.
455460
//
461+
def HasV8_0aOps : SubtargetFeature<"v8a", "HasV8_0aOps", "true",
462+
"Support ARM v8.0a instructions", [FeatureEL2VMSA, FeatureEL3]>;
456463

457464
def HasV8_1aOps : SubtargetFeature<"v8.1a", "HasV8_1aOps", "true",
458-
"Support ARM v8.1a instructions", [FeatureCRC, FeatureLSE, FeatureRDM,
459-
FeaturePAN, FeatureLOR, FeatureVH]>;
465+
"Support ARM v8.1a instructions", [HasV8_0aOps, FeatureCRC, FeatureLSE,
466+
FeatureRDM, FeaturePAN, FeatureLOR, FeatureVH]>;
460467

461468
def HasV8_2aOps : SubtargetFeature<"v8.2a", "HasV8_2aOps", "true",
462469
"Support ARM v8.2a instructions", [HasV8_1aOps, FeaturePsUAO,
@@ -898,8 +905,8 @@ def TuneTSV110 : SubtargetFeature<"tsv110", "ARMProcFamily", "TSV110",
898905

899906

900907
def ProcessorFeatures {
901-
list<SubtargetFeature> A53 = [FeatureCRC, FeatureCrypto, FeatureFPARMv8,
902-
FeatureNEON, FeaturePerfMon];
908+
list<SubtargetFeature> A53 = [HasV8_0aOps, FeatureCRC, FeatureCrypto,
909+
FeatureFPARMv8, FeatureNEON, FeaturePerfMon];
903910
list<SubtargetFeature> A55 = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
904911
FeatureNEON, FeatureFullFP16, FeatureDotProd,
905912
FeatureRCPC, FeaturePerfMon];
@@ -934,11 +941,11 @@ def ProcessorFeatures {
934941
FeatureSVE, FeatureComplxNum];
935942
list<SubtargetFeature> Carmel = [HasV8_2aOps, FeatureNEON, FeatureCrypto,
936943
FeatureFullFP16];
937-
list<SubtargetFeature> AppleA7 = [FeatureCrypto, FeatureFPARMv8, FeatureNEON,
938-
FeaturePerfMon, FeatureAppleA7SysReg];
939-
list<SubtargetFeature> AppleA10 = [FeatureCrypto, FeatureFPARMv8, FeatureNEON,
940-
FeaturePerfMon, FeatureCRC, FeatureRDM,
941-
FeaturePAN, FeatureLOR, FeatureVH];
944+
list<SubtargetFeature> AppleA7 = [HasV8_0aOps, FeatureCrypto, FeatureFPARMv8,
945+
FeatureNEON,FeaturePerfMon, FeatureAppleA7SysReg];
946+
list<SubtargetFeature> AppleA10 = [HasV8_0aOps, FeatureCrypto, FeatureFPARMv8,
947+
FeatureNEON, FeaturePerfMon, FeatureCRC,
948+
FeatureRDM, FeaturePAN, FeatureLOR, FeatureVH];
942949
list<SubtargetFeature> AppleA11 = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
943950
FeatureNEON, FeaturePerfMon, FeatureFullFP16];
944951
list<SubtargetFeature> AppleA12 = [HasV8_3aOps, FeatureCrypto, FeatureFPARMv8,
@@ -952,11 +959,13 @@ def ProcessorFeatures {
952959
FeaturePredRes, FeatureCacheDeepPersist,
953960
FeatureFullFP16, FeatureFP16FML, FeatureSHA3,
954961
FeatureAltFPCmp];
955-
list<SubtargetFeature> ExynosM3 = [FeatureCRC, FeatureCrypto, FeaturePerfMon];
962+
list<SubtargetFeature> ExynosM3 = [HasV8_0aOps, FeatureCRC, FeatureCrypto,
963+
FeaturePerfMon];
956964
list<SubtargetFeature> ExynosM4 = [HasV8_2aOps, FeatureCrypto, FeatureDotProd,
957965
FeatureFullFP16, FeaturePerfMon];
958-
list<SubtargetFeature> Falkor = [FeatureCRC, FeatureCrypto, FeatureFPARMv8,
959-
FeatureNEON, FeaturePerfMon, FeatureRDM];
966+
list<SubtargetFeature> Falkor = [HasV8_0aOps, FeatureCRC, FeatureCrypto,
967+
FeatureFPARMv8, FeatureNEON, FeaturePerfMon,
968+
FeatureRDM];
960969
list<SubtargetFeature> NeoverseE1 = [HasV8_2aOps, FeatureCrypto, FeatureDotProd,
961970
FeatureFPARMv8, FeatureFullFP16, FeatureNEON,
962971
FeatureRCPC, FeatureSSBS];
@@ -973,8 +982,8 @@ def ProcessorFeatures {
973982
FeatureSSBS, FeatureSVE];
974983
list<SubtargetFeature> Saphira = [HasV8_4aOps, FeatureCrypto, FeatureFPARMv8,
975984
FeatureNEON, FeatureSPE, FeaturePerfMon];
976-
list<SubtargetFeature> ThunderX = [FeatureCRC, FeatureCrypto, FeatureFPARMv8,
977-
FeaturePerfMon, FeatureNEON];
985+
list<SubtargetFeature> ThunderX = [HasV8_0aOps, FeatureCRC, FeatureCrypto,
986+
FeatureFPARMv8, FeaturePerfMon, FeatureNEON];
978987
list<SubtargetFeature> ThunderX2T99 = [HasV8_1aOps, FeatureCRC, FeatureCrypto,
979988
FeatureFPARMv8, FeatureNEON, FeatureLSE];
980989
list<SubtargetFeature> ThunderX3T110 = [HasV8_3aOps, FeatureCRC, FeatureCrypto,

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