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AArch64.td
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//=- AArch64.td - Describe the AArch64 Target Machine --------*- tablegen -*-=//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Target-independent interfaces which we are implementing.
//===----------------------------------------------------------------------===//
include "llvm/Target/Target.td"
//===----------------------------------------------------------------------===//
// AArch64 Subtarget features.
//
def FeatureFPARMv8 : SubtargetFeature<"fp-armv8", "HasFPARMv8", "true",
"Enable ARMv8 FP">;
def FeatureNEON : SubtargetFeature<"neon", "HasNEON", "true",
"Enable Advanced SIMD instructions", [FeatureFPARMv8]>;
def FeatureSM4 : SubtargetFeature<
"sm4", "HasSM4", "true",
"Enable SM3 and SM4 support", [FeatureNEON]>;
def FeatureSHA2 : SubtargetFeature<
"sha2", "HasSHA2", "true",
"Enable SHA1 and SHA256 support", [FeatureNEON]>;
def FeatureSHA3 : SubtargetFeature<
"sha3", "HasSHA3", "true",
"Enable SHA512 and SHA3 support", [FeatureNEON, FeatureSHA2]>;
def FeatureAES : SubtargetFeature<
"aes", "HasAES", "true",
"Enable AES support", [FeatureNEON]>;
// Crypto has been split up and any combination is now valid (see the
// crypto definitions above). Also, crypto is now context sensitive:
// it has a different meaning for e.g. Armv8.4 than it has for Armv8.2.
// Therefore, we rely on Clang, the user interacing tool, to pass on the
// appropriate crypto options. But here in the backend, crypto has very little
// meaning anymore. We kept the Crypto definition here for backward
// compatibility, and now imply features SHA2 and AES, which was the
// "traditional" meaning of Crypto.
def FeatureCrypto : SubtargetFeature<"crypto", "HasCrypto", "true",
"Enable cryptographic instructions", [FeatureNEON, FeatureSHA2, FeatureAES]>;
def FeatureCRC : SubtargetFeature<"crc", "HasCRC", "true",
"Enable ARMv8 CRC-32 checksum instructions">;
def FeatureRAS : SubtargetFeature<"ras", "HasRAS", "true",
"Enable ARMv8 Reliability, Availability and Serviceability Extensions">;
def FeatureLSE : SubtargetFeature<"lse", "HasLSE", "true",
"Enable ARMv8.1 Large System Extension (LSE) atomic instructions">;
def FeatureLSE2 : SubtargetFeature<"lse2", "HasLSE2", "true",
"Enable ARMv8.4 Large System Extension 2 (LSE2) atomicity rules">;
def FeatureOutlineAtomics : SubtargetFeature<"outline-atomics", "OutlineAtomics", "true",
"Enable out of line atomics to support LSE instructions">;
def FeatureRDM : SubtargetFeature<"rdm", "HasRDM", "true",
"Enable ARMv8.1 Rounding Double Multiply Add/Subtract instructions">;
def FeaturePAN : SubtargetFeature<
"pan", "HasPAN", "true",
"Enables ARM v8.1 Privileged Access-Never extension">;
def FeatureLOR : SubtargetFeature<
"lor", "HasLOR", "true",
"Enables ARM v8.1 Limited Ordering Regions extension">;
def FeatureCONTEXTIDREL2 : SubtargetFeature<"CONTEXTIDREL2", "HasCONTEXTIDREL2",
"true", "Enable RW operand CONTEXTIDR_EL2" >;
def FeatureVH : SubtargetFeature<"vh", "HasVH", "true",
"Enables ARM v8.1 Virtual Host extension", [FeatureCONTEXTIDREL2] >;
def FeaturePerfMon : SubtargetFeature<"perfmon", "HasPerfMon", "true",
"Enable ARMv8 PMUv3 Performance Monitors extension">;
def FeatureFullFP16 : SubtargetFeature<"fullfp16", "HasFullFP16", "true",
"Full FP16", [FeatureFPARMv8]>;
def FeatureFP16FML : SubtargetFeature<"fp16fml", "HasFP16FML", "true",
"Enable FP16 FML instructions", [FeatureFullFP16]>;
def FeatureSPE : SubtargetFeature<"spe", "HasSPE", "true",
"Enable Statistical Profiling extension">;
def FeaturePAN_RWV : SubtargetFeature<
"pan-rwv", "HasPAN_RWV", "true",
"Enable v8.2 PAN s1e1R and s1e1W Variants",
[FeaturePAN]>;
// UAO PState
def FeaturePsUAO : SubtargetFeature< "uaops", "HasPsUAO", "true",
"Enable v8.2 UAO PState">;
def FeatureCCPP : SubtargetFeature<"ccpp", "HasCCPP",
"true", "Enable v8.2 data Cache Clean to Point of Persistence" >;
def FeatureSVE : SubtargetFeature<"sve", "HasSVE", "true",
"Enable Scalable Vector Extension (SVE) instructions", [FeatureFullFP16]>;
// This flag is currently still labeled as Experimental, but when fully
// implemented this should tell the compiler to use the zeroing pseudos to
// benefit from the reverse instructions (e.g. SUB vs SUBR) if the inactive
// lanes are known to be zero. The pseudos will then be expanded using the
// MOVPRFX instruction to zero the inactive lanes. This feature should only be
// enabled if MOVPRFX instructions are known to merge with the destructive
// operations they prefix.
//
// This feature could similarly be extended to support cheap merging of _any_
// value into the inactive lanes using the MOVPRFX instruction that uses
// merging-predication.
def FeatureExperimentalZeroingPseudos
: SubtargetFeature<"use-experimental-zeroing-pseudos",
"UseExperimentalZeroingPseudos", "true",
"Hint to the compiler that the MOVPRFX instruction is "
"merged with destructive operations",
[]>;
def FeatureUseScalarIncVL : SubtargetFeature<"use-scalar-inc-vl",
"UseScalarIncVL", "true", "Prefer inc/dec over add+cnt">;
def FeatureSVE2 : SubtargetFeature<"sve2", "HasSVE2", "true",
"Enable Scalable Vector Extension 2 (SVE2) instructions",
[FeatureSVE, FeatureUseScalarIncVL]>;
def FeatureSVE2AES : SubtargetFeature<"sve2-aes", "HasSVE2AES", "true",
"Enable AES SVE2 instructions", [FeatureSVE2, FeatureAES]>;
def FeatureSVE2SM4 : SubtargetFeature<"sve2-sm4", "HasSVE2SM4", "true",
"Enable SM4 SVE2 instructions", [FeatureSVE2, FeatureSM4]>;
def FeatureSVE2SHA3 : SubtargetFeature<"sve2-sha3", "HasSVE2SHA3", "true",
"Enable SHA3 SVE2 instructions", [FeatureSVE2, FeatureSHA3]>;
def FeatureSVE2BitPerm : SubtargetFeature<"sve2-bitperm", "HasSVE2BitPerm", "true",
"Enable bit permutation SVE2 instructions", [FeatureSVE2]>;
def FeatureZCRegMove : SubtargetFeature<"zcm", "HasZeroCycleRegMove", "true",
"Has zero-cycle register moves">;
def FeatureZCZeroingGP : SubtargetFeature<"zcz-gp", "HasZeroCycleZeroingGP", "true",
"Has zero-cycle zeroing instructions for generic registers">;
def FeatureNoZCZeroingFP : SubtargetFeature<"no-zcz-fp", "HasZeroCycleZeroingFP", "false",
"Has no zero-cycle zeroing instructions for FP registers">;
def FeatureZCZeroing : SubtargetFeature<"zcz", "HasZeroCycleZeroing", "true",
"Has zero-cycle zeroing instructions",
[FeatureZCZeroingGP]>;
/// ... but the floating-point version doesn't quite work in rare cases on older
/// CPUs.
def FeatureZCZeroingFPWorkaround : SubtargetFeature<"zcz-fp-workaround",
"HasZeroCycleZeroingFPWorkaround", "true",
"The zero-cycle floating-point zeroing instruction has a bug">;
def FeatureStrictAlign : SubtargetFeature<"strict-align",
"StrictAlign", "true",
"Disallow all unaligned memory "
"access">;
foreach i = {1-7,9-15,18,20-28,30} in
def FeatureReserveX#i : SubtargetFeature<"reserve-x"#i, "ReserveXRegister["#i#"]", "true",
"Reserve X"#i#", making it unavailable "
"as a GPR">;
foreach i = {8-15,18} in
def FeatureCallSavedX#i : SubtargetFeature<"call-saved-x"#i,
"CustomCallSavedXRegs["#i#"]", "true", "Make X"#i#" callee saved.">;
def FeatureBalanceFPOps : SubtargetFeature<"balance-fp-ops", "BalanceFPOps",
"true",
"balance mix of odd and even D-registers for fp multiply(-accumulate) ops">;
def FeaturePredictableSelectIsExpensive : SubtargetFeature<
"predictable-select-expensive", "PredictableSelectIsExpensive", "true",
"Prefer likely predicted branches over selects">;
def FeatureCustomCheapAsMoveHandling : SubtargetFeature<"custom-cheap-as-move",
"CustomAsCheapAsMove", "true",
"Use custom handling of cheap instructions">;
def FeatureExynosCheapAsMoveHandling : SubtargetFeature<"exynos-cheap-as-move",
"ExynosAsCheapAsMove", "true",
"Use Exynos specific handling of cheap instructions",
[FeatureCustomCheapAsMoveHandling]>;
def FeaturePostRAScheduler : SubtargetFeature<"use-postra-scheduler",
"UsePostRAScheduler", "true", "Schedule again after register allocation">;
def FeatureSlowMisaligned128Store : SubtargetFeature<"slow-misaligned-128store",
"Misaligned128StoreIsSlow", "true", "Misaligned 128 bit stores are slow">;
def FeatureSlowPaired128 : SubtargetFeature<"slow-paired-128",
"Paired128IsSlow", "true", "Paired 128 bit loads and stores are slow">;
def FeatureSlowSTRQro : SubtargetFeature<"slow-strqro-store", "STRQroIsSlow",
"true", "STR of Q register with register offset is slow">;
def FeatureAlternateSExtLoadCVTF32Pattern : SubtargetFeature<
"alternate-sextload-cvt-f32-pattern", "UseAlternateSExtLoadCVTF32Pattern",
"true", "Use alternative pattern for sextload convert to f32">;
def FeatureArithmeticBccFusion : SubtargetFeature<
"arith-bcc-fusion", "HasArithmeticBccFusion", "true",
"CPU fuses arithmetic+bcc operations">;
def FeatureArithmeticCbzFusion : SubtargetFeature<
"arith-cbz-fusion", "HasArithmeticCbzFusion", "true",
"CPU fuses arithmetic + cbz/cbnz operations">;
def FeatureCmpBccFusion : SubtargetFeature<
"cmp-bcc-fusion", "HasCmpBccFusion", "true",
"CPU fuses cmp+bcc operations">;
def FeatureFuseAddress : SubtargetFeature<
"fuse-address", "HasFuseAddress", "true",
"CPU fuses address generation and memory operations">;
def FeatureFuseAES : SubtargetFeature<
"fuse-aes", "HasFuseAES", "true",
"CPU fuses AES crypto operations">;
def FeatureFuseArithmeticLogic : SubtargetFeature<
"fuse-arith-logic", "HasFuseArithmeticLogic", "true",
"CPU fuses arithmetic and logic operations">;
def FeatureFuseCCSelect : SubtargetFeature<
"fuse-csel", "HasFuseCCSelect", "true",
"CPU fuses conditional select operations">;
def FeatureFuseCryptoEOR : SubtargetFeature<
"fuse-crypto-eor", "HasFuseCryptoEOR", "true",
"CPU fuses AES/PMULL and EOR operations">;
def FeatureFuseLiterals : SubtargetFeature<
"fuse-literals", "HasFuseLiterals", "true",
"CPU fuses literal generation operations">;
def FeatureDisableLatencySchedHeuristic : SubtargetFeature<
"disable-latency-sched-heuristic", "DisableLatencySchedHeuristic", "true",
"Disable latency scheduling heuristic">;
def FeatureForce32BitJumpTables
: SubtargetFeature<"force-32bit-jump-tables", "Force32BitJumpTables", "true",
"Force jump table entries to be 32-bits wide except at MinSize">;
def FeatureRCPC : SubtargetFeature<"rcpc", "HasRCPC", "true",
"Enable support for RCPC extension">;
def FeatureUseRSqrt : SubtargetFeature<
"use-reciprocal-square-root", "UseRSqrt", "true",
"Use the reciprocal square root approximation">;
def FeatureDotProd : SubtargetFeature<
"dotprod", "HasDotProd", "true",
"Enable dot product support">;
def FeaturePAuth : SubtargetFeature<
"pauth", "HasPAuth", "true",
"Enable v8.3-A Pointer Authentication extension">;
def FeatureJS : SubtargetFeature<
"jsconv", "HasJS", "true",
"Enable v8.3-A JavaScript FP conversion instructions",
[FeatureFPARMv8]>;
def FeatureCCIDX : SubtargetFeature<
"ccidx", "HasCCIDX", "true",
"Enable v8.3-A Extend of the CCSIDR number of sets">;
def FeatureComplxNum : SubtargetFeature<
"complxnum", "HasComplxNum", "true",
"Enable v8.3-A Floating-point complex number support",
[FeatureNEON]>;
def FeatureNV : SubtargetFeature<
"nv", "HasNV", "true",
"Enable v8.4-A Nested Virtualization Enchancement">;
def FeatureMPAM : SubtargetFeature<
"mpam", "HasMPAM", "true",
"Enable v8.4-A Memory system Partitioning and Monitoring extension">;
def FeatureDIT : SubtargetFeature<
"dit", "HasDIT", "true",
"Enable v8.4-A Data Independent Timing instructions">;
def FeatureTRACEV8_4 : SubtargetFeature<
"tracev8.4", "HasTRACEV8_4", "true",
"Enable v8.4-A Trace extension">;
def FeatureAM : SubtargetFeature<
"am", "HasAM", "true",
"Enable v8.4-A Activity Monitors extension">;
def FeatureAMVS : SubtargetFeature<
"amvs", "HasAMVS", "true",
"Enable v8.6-A Activity Monitors Virtualization support",
[FeatureAM]>;
def FeatureSEL2 : SubtargetFeature<
"sel2", "HasSEL2", "true",
"Enable v8.4-A Secure Exception Level 2 extension">;
def FeatureTLB_RMI : SubtargetFeature<
"tlb-rmi", "HasTLB_RMI", "true",
"Enable v8.4-A TLB Range and Maintenance Instructions">;
def FeatureFlagM : SubtargetFeature<
"flagm", "HasFlagM", "true",
"Enable v8.4-A Flag Manipulation Instructions">;
// 8.4 RCPC enchancements: LDAPR & STLR instructions with Immediate Offset
def FeatureRCPC_IMMO : SubtargetFeature<"rcpc-immo", "HasRCPC_IMMO", "true",
"Enable v8.4-A RCPC instructions with Immediate Offsets",
[FeatureRCPC]>;
def FeatureNoNegativeImmediates : SubtargetFeature<"no-neg-immediates",
"NegativeImmediates", "false",
"Convert immediates and instructions "
"to their negated or complemented "
"equivalent when the immediate does "
"not fit in the encoding.">;
def FeatureLSLFast : SubtargetFeature<
"lsl-fast", "HasLSLFast", "true",
"CPU has a fastpath logical shift of up to 3 places">;
def FeatureAggressiveFMA :
SubtargetFeature<"aggressive-fma",
"HasAggressiveFMA",
"true",
"Enable Aggressive FMA for floating-point.">;
def FeatureAltFPCmp : SubtargetFeature<"altnzcv", "HasAlternativeNZCV", "true",
"Enable alternative NZCV format for floating point comparisons">;
def FeatureFRInt3264 : SubtargetFeature<"fptoint", "HasFRInt3264", "true",
"Enable FRInt[32|64][Z|X] instructions that round a floating-point number to "
"an integer (in FP format) forcing it to fit into a 32- or 64-bit int" >;
def FeatureSpecRestrict : SubtargetFeature<"specrestrict", "HasSpecRestrict",
"true", "Enable architectural speculation restriction" >;
def FeatureSB : SubtargetFeature<"sb", "HasSB",
"true", "Enable v8.5 Speculation Barrier" >;
def FeatureSSBS : SubtargetFeature<"ssbs", "HasSSBS",
"true", "Enable Speculative Store Bypass Safe bit" >;
def FeaturePredRes : SubtargetFeature<"predres", "HasPredRes", "true",
"Enable v8.5a execution and data prediction invalidation instructions" >;
def FeatureCacheDeepPersist : SubtargetFeature<"ccdp", "HasCCDP",
"true", "Enable v8.5 Cache Clean to Point of Deep Persistence" >;
def FeatureBranchTargetId : SubtargetFeature<"bti", "HasBTI",
"true", "Enable Branch Target Identification" >;
def FeatureRandGen : SubtargetFeature<"rand", "HasRandGen",
"true", "Enable Random Number generation instructions" >;
def FeatureMTE : SubtargetFeature<"mte", "HasMTE",
"true", "Enable Memory Tagging Extension" >;
def FeatureTRBE : SubtargetFeature<"trbe", "HasTRBE",
"true", "Enable Trace Buffer Extension">;
def FeatureETE : SubtargetFeature<"ete", "HasETE",
"true", "Enable Embedded Trace Extension",
[FeatureTRBE]>;
def FeatureTME : SubtargetFeature<"tme", "HasTME",
"true", "Enable Transactional Memory Extension" >;
def FeatureTaggedGlobals : SubtargetFeature<"tagged-globals",
"AllowTaggedGlobals",
"true", "Use an instruction sequence for taking the address of a global "
"that allows a memory tag in the upper address bits">;
def FeatureBF16 : SubtargetFeature<"bf16", "HasBF16",
"true", "Enable BFloat16 Extension" >;
def FeatureMatMulInt8 : SubtargetFeature<"i8mm", "HasMatMulInt8",
"true", "Enable Matrix Multiply Int8 Extension">;
def FeatureMatMulFP32 : SubtargetFeature<"f32mm", "HasMatMulFP32",
"true", "Enable Matrix Multiply FP32 Extension", [FeatureSVE]>;
def FeatureMatMulFP64 : SubtargetFeature<"f64mm", "HasMatMulFP64",
"true", "Enable Matrix Multiply FP64 Extension", [FeatureSVE]>;
def FeatureXS : SubtargetFeature<"xs", "HasXS",
"true", "Enable Armv8.7-A limited-TLB-maintenance instruction">;
def FeatureWFxT : SubtargetFeature<"wfxt", "HasWFxT",
"true", "Enable Armv8.7-A WFET and WFIT instruction">;
def FeatureHCX : SubtargetFeature<
"hcx", "HasHCX", "true", "Enable Armv8.7-A HCRX_EL2 system register">;
def FeatureLS64 : SubtargetFeature<"ls64", "HasLS64",
"true", "Enable Armv8.7-A LD64B/ST64B Accelerator Extension">;
def FeatureHBC : SubtargetFeature<"hbc", "HasHBC",
"true", "Enable Armv8.8-A Hinted Conditional Branches Extension">;
def FeatureMOPS : SubtargetFeature<"mops", "HasMOPS",
"true", "Enable Armv8.8-A memcpy and memset acceleration instructions">;
def FeatureBRBE : SubtargetFeature<"brbe", "HasBRBE",
"true", "Enable Branch Record Buffer Extension">;
def FeatureSPE_EEF : SubtargetFeature<"spe-eef", "HasSPE_EEF",
"true", "Enable extra register in the Statistical Profiling Extension">;
def FeatureFineGrainedTraps : SubtargetFeature<"fgt", "HasFineGrainedTraps",
"true", "Enable fine grained virtualization traps extension">;
def FeatureEnhancedCounterVirtualization :
SubtargetFeature<"ecv", "HasEnhancedCounterVirtualization",
"true", "Enable enhanced counter virtualization extension">;
def FeatureRME : SubtargetFeature<"rme", "HasRME",
"true", "Enable Realm Management Extension">;
// A subset of SVE(2) instructions are legal in Streaming SVE execution mode
// defined by SME.
def FeatureStreamingSVE : SubtargetFeature<"streaming-sve",
"HasStreamingSVE", "true",
"Enable subset of SVE(2) instructions for Streaming SVE execution mode">;
def FeatureSME : SubtargetFeature<"sme", "HasSME", "true",
"Enable Scalable Matrix Extension (SME)", [FeatureStreamingSVE, FeatureBF16]>;
def FeatureSMEF64 : SubtargetFeature<"sme-f64", "HasSMEF64", "true",
"Enable Scalable Matrix Extension (SME) F64F64 instructions", [FeatureSME]>;
def FeatureSMEI64 : SubtargetFeature<"sme-i64", "HasSMEI64", "true",
"Enable Scalable Matrix Extension (SME) I16I64 instructions", [FeatureSME]>;
def FeatureAppleA7SysReg : SubtargetFeature<"apple-a7-sysreg", "HasAppleA7SysReg", "true",
"Apple A7 (the CPU formerly known as Cyclone)">;
def FeatureEL2VMSA : SubtargetFeature<"el2vmsa", "HasEL2VMSA", "true",
"Enable Exception Level 2 Virtual Memory System Architecture">;
def FeatureEL3 : SubtargetFeature<"el3", "HasEL3", "true",
"Enable Exception Level 3">;
def FeatureFixCortexA53_835769 : SubtargetFeature<"fix-cortex-a53-835769",
"FixCortexA53_835769", "true", "Mitigate Cortex-A53 Erratum 835769">;
//===----------------------------------------------------------------------===//
// Architectures.
//
def HasV8_0aOps : SubtargetFeature<"v8a", "HasV8_0aOps", "true",
"Support ARM v8.0a instructions", [FeatureEL2VMSA, FeatureEL3]>;
def HasV8_1aOps : SubtargetFeature<"v8.1a", "HasV8_1aOps", "true",
"Support ARM v8.1a instructions", [HasV8_0aOps, FeatureCRC, FeatureLSE,
FeatureRDM, FeaturePAN, FeatureLOR, FeatureVH]>;
def HasV8_2aOps : SubtargetFeature<"v8.2a", "HasV8_2aOps", "true",
"Support ARM v8.2a instructions", [HasV8_1aOps, FeaturePsUAO,
FeaturePAN_RWV, FeatureRAS, FeatureCCPP]>;
def HasV8_3aOps : SubtargetFeature<"v8.3a", "HasV8_3aOps", "true",
"Support ARM v8.3a instructions", [HasV8_2aOps, FeatureRCPC, FeaturePAuth,
FeatureJS, FeatureCCIDX, FeatureComplxNum]>;
def HasV8_4aOps : SubtargetFeature<"v8.4a", "HasV8_4aOps", "true",
"Support ARM v8.4a instructions", [HasV8_3aOps, FeatureDotProd,
FeatureNV, FeatureMPAM, FeatureDIT,
FeatureTRACEV8_4, FeatureAM, FeatureSEL2, FeatureTLB_RMI,
FeatureFlagM, FeatureRCPC_IMMO, FeatureLSE2]>;
def HasV8_5aOps : SubtargetFeature<
"v8.5a", "HasV8_5aOps", "true", "Support ARM v8.5a instructions",
[HasV8_4aOps, FeatureAltFPCmp, FeatureFRInt3264, FeatureSpecRestrict,
FeatureSSBS, FeatureSB, FeaturePredRes, FeatureCacheDeepPersist,
FeatureBranchTargetId]>;
def HasV8_6aOps : SubtargetFeature<
"v8.6a", "HasV8_6aOps", "true", "Support ARM v8.6a instructions",
[HasV8_5aOps, FeatureAMVS, FeatureBF16, FeatureFineGrainedTraps,
FeatureEnhancedCounterVirtualization, FeatureMatMulInt8]>;
def HasV8_7aOps : SubtargetFeature<
"v8.7a", "HasV8_7aOps", "true", "Support ARM v8.7a instructions",
[HasV8_6aOps, FeatureXS, FeatureWFxT, FeatureHCX]>;
def HasV8_8aOps : SubtargetFeature<
"v8.8a", "HasV8_8aOps", "true", "Support ARM v8.8a instructions",
[HasV8_7aOps, FeatureHBC, FeatureMOPS]>;
def HasV9_0aOps : SubtargetFeature<
"v9a", "HasV9_0aOps", "true", "Support ARM v9a instructions",
[HasV8_5aOps, FeatureSVE2]>;
def HasV9_1aOps : SubtargetFeature<
"v9.1a", "HasV9_1aOps", "true", "Support ARM v9.1a instructions",
[HasV8_6aOps, HasV9_0aOps]>;
def HasV9_2aOps : SubtargetFeature<
"v9.2a", "HasV9_2aOps", "true", "Support ARM v9.2a instructions",
[HasV8_7aOps, HasV9_1aOps]>;
def HasV9_3aOps : SubtargetFeature<
"v9.3a", "HasV9_3aOps", "true", "Support ARM v9.3a instructions",
[HasV8_8aOps, HasV9_2aOps]>;
def HasV8_0rOps : SubtargetFeature<
"v8r", "HasV8_0rOps", "true", "Support ARM v8r instructions",
[//v8.1
FeatureCRC, FeaturePAN, FeatureRDM, FeatureLSE, FeatureCONTEXTIDREL2,
//v8.2
FeatureRAS, FeaturePsUAO, FeatureCCPP, FeaturePAN_RWV,
//v8.3
FeatureComplxNum, FeatureCCIDX, FeatureJS,
FeaturePAuth, FeatureRCPC,
//v8.4
FeatureDotProd, FeatureTRACEV8_4, FeatureTLB_RMI,
FeatureFlagM, FeatureDIT, FeatureSEL2, FeatureRCPC_IMMO]>;
//===----------------------------------------------------------------------===//
// Register File Description
//===----------------------------------------------------------------------===//
include "AArch64RegisterInfo.td"
include "AArch64RegisterBanks.td"
include "AArch64CallingConvention.td"
//===----------------------------------------------------------------------===//
// Instruction Descriptions
//===----------------------------------------------------------------------===//
include "AArch64Schedule.td"
include "AArch64InstrInfo.td"
include "AArch64SchedPredicates.td"
include "AArch64SchedPredExynos.td"
include "AArch64Combine.td"
def AArch64InstrInfo : InstrInfo;
//===----------------------------------------------------------------------===//
// Named operands for MRS/MSR/TLBI/...
//===----------------------------------------------------------------------===//
include "AArch64SystemOperands.td"
//===----------------------------------------------------------------------===//
// Access to privileged registers
//===----------------------------------------------------------------------===//
foreach i = 1-3 in
def FeatureUseEL#i#ForTP : SubtargetFeature<"tpidr-el"#i, "UseEL"#i#"ForTP",
"true", "Permit use of TPIDR_EL"#i#" for the TLS base">;
//===----------------------------------------------------------------------===//
// Control codegen mitigation against Straight Line Speculation vulnerability.
//===----------------------------------------------------------------------===//
def FeatureHardenSlsRetBr : SubtargetFeature<"harden-sls-retbr",
"HardenSlsRetBr", "true",
"Harden against straight line speculation across RET and BR instructions">;
def FeatureHardenSlsBlr : SubtargetFeature<"harden-sls-blr",
"HardenSlsBlr", "true",
"Harden against straight line speculation across BLR instructions">;
def FeatureHardenSlsNoComdat : SubtargetFeature<"harden-sls-nocomdat",
"HardenSlsNoComdat", "true",
"Generate thunk code for SLS mitigation in the normal text section">;
//===----------------------------------------------------------------------===//
// AArch64 Processors supported.
//
//===----------------------------------------------------------------------===//
// Unsupported features to disable for scheduling models
//===----------------------------------------------------------------------===//
class AArch64Unsupported { list<Predicate> F; }
def SVEUnsupported : AArch64Unsupported {
let F = [HasSVE, HasSVE2, HasSVE2AES, HasSVE2SM4, HasSVE2SHA3,
HasSVE2BitPerm, HasSVEorStreamingSVE, HasSVE2orStreamingSVE];
}
def PAUnsupported : AArch64Unsupported {
let F = [HasPAuth];
}
def SMEUnsupported : AArch64Unsupported {
let F = [HasSME, HasSMEF64, HasSMEI64];
}
include "AArch64SchedA53.td"
include "AArch64SchedA55.td"
include "AArch64SchedA57.td"
include "AArch64SchedCyclone.td"
include "AArch64SchedFalkor.td"
include "AArch64SchedKryo.td"
include "AArch64SchedExynosM3.td"
include "AArch64SchedExynosM4.td"
include "AArch64SchedExynosM5.td"
include "AArch64SchedThunderX.td"
include "AArch64SchedThunderX2T99.td"
include "AArch64SchedA64FX.td"
include "AArch64SchedThunderX3T110.td"
include "AArch64SchedTSV110.td"
def TuneA35 : SubtargetFeature<"a35", "ARMProcFamily", "CortexA35",
"Cortex-A35 ARM processors">;
def TuneA53 : SubtargetFeature<"a53", "ARMProcFamily", "CortexA53",
"Cortex-A53 ARM processors", [
FeatureFuseAES,
FeatureBalanceFPOps,
FeatureCustomCheapAsMoveHandling,
FeaturePostRAScheduler]>;
def TuneA55 : SubtargetFeature<"a55", "ARMProcFamily", "CortexA55",
"Cortex-A55 ARM processors", [
FeatureFuseAES,
FeaturePostRAScheduler,
FeatureFuseAddress]>;
def TuneA510 : SubtargetFeature<"a510", "ARMProcFamily", "CortexA510",
"Cortex-A510 ARM processors", [
FeatureFuseAES,
FeaturePostRAScheduler
]>;
def TuneA57 : SubtargetFeature<"a57", "ARMProcFamily", "CortexA57",
"Cortex-A57 ARM processors", [
FeatureFuseAES,
FeatureBalanceFPOps,
FeatureCustomCheapAsMoveHandling,
FeatureFuseLiterals,
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive]>;
def TuneA65 : SubtargetFeature<"a65", "ARMProcFamily", "CortexA65",
"Cortex-A65 ARM processors", [
FeatureFuseAES,
FeatureFuseAddress,
FeatureFuseLiterals]>;
def TuneA72 : SubtargetFeature<"a72", "ARMProcFamily", "CortexA72",
"Cortex-A72 ARM processors", [
FeatureFuseAES,
FeatureFuseLiterals]>;
def TuneA73 : SubtargetFeature<"a73", "ARMProcFamily", "CortexA73",
"Cortex-A73 ARM processors", [
FeatureFuseAES]>;
def TuneA75 : SubtargetFeature<"a75", "ARMProcFamily", "CortexA75",
"Cortex-A75 ARM processors", [
FeatureFuseAES]>;
def TuneA76 : SubtargetFeature<"a76", "ARMProcFamily", "CortexA76",
"Cortex-A76 ARM processors", [
FeatureFuseAES]>;
def TuneA77 : SubtargetFeature<"a77", "ARMProcFamily", "CortexA77",
"Cortex-A77 ARM processors", [
FeatureCmpBccFusion,
FeatureFuseAES]>;
def TuneA78 : SubtargetFeature<"a78", "ARMProcFamily", "CortexA78",
"Cortex-A78 ARM processors", [
FeatureCmpBccFusion,
FeatureFuseAES,
FeaturePostRAScheduler]>;
def TuneA78C : SubtargetFeature<"a78c", "ARMProcFamily",
"CortexA78C",
"Cortex-A78C ARM processors", [
FeatureCmpBccFusion,
FeatureFuseAES,
FeaturePostRAScheduler]>;
def TuneA710 : SubtargetFeature<"a710", "ARMProcFamily", "CortexA710",
"Cortex-A710 ARM processors", [
FeatureFuseAES,
FeaturePostRAScheduler,
FeatureCmpBccFusion]>;
def TuneR82 : SubtargetFeature<"cortex-r82", "ARMProcFamily",
"CortexR82",
"Cortex-R82 ARM processors", [
FeaturePostRAScheduler]>;
def TuneX1 : SubtargetFeature<"cortex-x1", "ARMProcFamily", "CortexX1",
"Cortex-X1 ARM processors", [
FeatureCmpBccFusion,
FeatureFuseAES,
FeaturePostRAScheduler]>;
def TuneX2 : SubtargetFeature<"cortex-x2", "ARMProcFamily", "CortexX2",
"Cortex-X2 ARM processors", [
FeatureFuseAES,
FeaturePostRAScheduler,
FeatureCmpBccFusion]>;
def TuneA64FX : SubtargetFeature<"a64fx", "ARMProcFamily", "A64FX",
"Fujitsu A64FX processors", [
FeaturePostRAScheduler,
FeatureAggressiveFMA,
FeatureArithmeticBccFusion,
FeaturePredictableSelectIsExpensive
]>;
def TuneCarmel : SubtargetFeature<"carmel", "ARMProcFamily", "Carmel",
"Nvidia Carmel processors">;
// Note that cyclone does not fuse AES instructions, but newer apple chips do
// perform the fusion and cyclone is used by default when targetting apple OSes.
def TuneAppleA7 : SubtargetFeature<"apple-a7", "ARMProcFamily", "AppleA7",
"Apple A7 (the CPU formerly known as Cyclone)", [
FeatureAlternateSExtLoadCVTF32Pattern,
FeatureArithmeticBccFusion,
FeatureArithmeticCbzFusion,
FeatureDisableLatencySchedHeuristic,
FeatureFuseAES, FeatureFuseCryptoEOR,
FeatureZCRegMove,
FeatureZCZeroing,
FeatureZCZeroingFPWorkaround]
>;
def TuneAppleA10 : SubtargetFeature<"apple-a10", "ARMProcFamily", "AppleA10",
"Apple A10", [
FeatureAlternateSExtLoadCVTF32Pattern,
FeatureArithmeticBccFusion,
FeatureArithmeticCbzFusion,
FeatureDisableLatencySchedHeuristic,
FeatureFuseAES,
FeatureFuseCryptoEOR,
FeatureZCRegMove,
FeatureZCZeroing]
>;
def TuneAppleA11 : SubtargetFeature<"apple-a11", "ARMProcFamily", "AppleA11",
"Apple A11", [
FeatureAlternateSExtLoadCVTF32Pattern,
FeatureArithmeticBccFusion,
FeatureArithmeticCbzFusion,
FeatureDisableLatencySchedHeuristic,
FeatureFuseAES,
FeatureFuseCryptoEOR,
FeatureZCRegMove,
FeatureZCZeroing]
>;
def TuneAppleA12 : SubtargetFeature<"apple-a12", "ARMProcFamily", "AppleA12",
"Apple A12", [
FeatureAlternateSExtLoadCVTF32Pattern,
FeatureArithmeticBccFusion,
FeatureArithmeticCbzFusion,
FeatureDisableLatencySchedHeuristic,
FeatureFuseAES,
FeatureFuseCryptoEOR,
FeatureZCRegMove,
FeatureZCZeroing]
>;
def TuneAppleA13 : SubtargetFeature<"apple-a13", "ARMProcFamily", "AppleA13",
"Apple A13", [
FeatureAlternateSExtLoadCVTF32Pattern,
FeatureArithmeticBccFusion,
FeatureArithmeticCbzFusion,
FeatureDisableLatencySchedHeuristic,
FeatureFuseAES,
FeatureFuseCryptoEOR,
FeatureZCRegMove,
FeatureZCZeroing]
>;
def TuneAppleA14 : SubtargetFeature<"apple-a14", "ARMProcFamily", "AppleA14",
"Apple A14", [
FeatureAggressiveFMA,
FeatureAlternateSExtLoadCVTF32Pattern,
FeatureArithmeticBccFusion,
FeatureArithmeticCbzFusion,
FeatureDisableLatencySchedHeuristic,
FeatureFuseAddress,
FeatureFuseAES,
FeatureFuseArithmeticLogic,
FeatureFuseCCSelect,
FeatureFuseCryptoEOR,
FeatureFuseLiterals,
FeatureZCRegMove,
FeatureZCZeroing]>;
def TuneExynosM3 : SubtargetFeature<"exynosm3", "ARMProcFamily", "ExynosM3",
"Samsung Exynos-M3 processors",
[FeatureExynosCheapAsMoveHandling,
FeatureForce32BitJumpTables,
FeatureFuseAddress,
FeatureFuseAES,
FeatureFuseCCSelect,
FeatureFuseLiterals,
FeatureLSLFast,
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive]>;
def TuneExynosM4 : SubtargetFeature<"exynosm3", "ARMProcFamily", "ExynosM3",
"Samsung Exynos-M3 processors",
[FeatureArithmeticBccFusion,
FeatureArithmeticCbzFusion,
FeatureExynosCheapAsMoveHandling,
FeatureForce32BitJumpTables,
FeatureFuseAddress,
FeatureFuseAES,
FeatureFuseArithmeticLogic,
FeatureFuseCCSelect,
FeatureFuseLiterals,
FeatureLSLFast,
FeaturePostRAScheduler,
FeatureZCZeroing]>;
def TuneKryo : SubtargetFeature<"kryo", "ARMProcFamily", "Kryo",
"Qualcomm Kryo processors", [
FeatureCustomCheapAsMoveHandling,
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive,
FeatureZCZeroing,
FeatureLSLFast]
>;
def TuneFalkor : SubtargetFeature<"falkor", "ARMProcFamily", "Falkor",
"Qualcomm Falkor processors", [
FeatureCustomCheapAsMoveHandling,
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive,
FeatureZCZeroing,
FeatureLSLFast,
FeatureSlowSTRQro
]>;
def TuneNeoverseE1 : SubtargetFeature<"neoversee1", "ARMProcFamily", "NeoverseE1",
"Neoverse E1 ARM processors", [
FeaturePostRAScheduler,
FeatureFuseAES
]>;
def TuneNeoverseN1 : SubtargetFeature<"neoversen1", "ARMProcFamily", "NeoverseN1",
"Neoverse N1 ARM processors", [
FeaturePostRAScheduler,
FeatureFuseAES
]>;
def TuneNeoverseN2 : SubtargetFeature<"neoversen2", "ARMProcFamily", "NeoverseN2",
"Neoverse N2 ARM processors", [
FeaturePostRAScheduler,
FeatureFuseAES
]>;
def TuneNeoverse512TVB : SubtargetFeature<"neoverse512tvb", "ARMProcFamily", "Neoverse512TVB",
"Neoverse 512-TVB ARM processors", [
FeaturePostRAScheduler,
FeatureFuseAES
]>;
def TuneNeoverseV1 : SubtargetFeature<"neoversev1", "ARMProcFamily", "NeoverseV1",
"Neoverse V1 ARM processors", [
FeatureFuseAES,
FeaturePostRAScheduler]>;
def TuneSaphira : SubtargetFeature<"saphira", "ARMProcFamily", "Saphira",
"Qualcomm Saphira processors", [
FeatureCustomCheapAsMoveHandling,
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive,
FeatureZCZeroing,
FeatureLSLFast]>;
def TuneThunderX2T99 : SubtargetFeature<"thunderx2t99", "ARMProcFamily", "ThunderX2T99",
"Cavium ThunderX2 processors", [
FeatureAggressiveFMA,
FeatureArithmeticBccFusion,
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive]>;
def TuneThunderX3T110 : SubtargetFeature<"thunderx3t110", "ARMProcFamily",
"ThunderX3T110",
"Marvell ThunderX3 processors", [
FeatureAggressiveFMA,
FeatureArithmeticBccFusion,
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive,
FeatureBalanceFPOps,
FeatureStrictAlign]>;
def TuneThunderX : SubtargetFeature<"thunderx", "ARMProcFamily", "ThunderX",
"Cavium ThunderX processors", [
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive]>;
def TuneThunderXT88 : SubtargetFeature<"thunderxt88", "ARMProcFamily",
"ThunderXT88",
"Cavium ThunderX processors", [
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive]>;
def TuneThunderXT81 : SubtargetFeature<"thunderxt81", "ARMProcFamily",
"ThunderXT81",
"Cavium ThunderX processors", [
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive]>;
def TuneThunderXT83 : SubtargetFeature<"thunderxt83", "ARMProcFamily",
"ThunderXT83",
"Cavium ThunderX processors", [
FeaturePostRAScheduler,
FeaturePredictableSelectIsExpensive]>;
def TuneTSV110 : SubtargetFeature<"tsv110", "ARMProcFamily", "TSV110",
"HiSilicon TS-V110 processors", [
FeatureCustomCheapAsMoveHandling,
FeatureFuseAES,
FeaturePostRAScheduler]>;
def ProcessorFeatures {
list<SubtargetFeature> A53 = [HasV8_0aOps, FeatureCRC, FeatureCrypto,
FeatureFPARMv8, FeatureNEON, FeaturePerfMon];
list<SubtargetFeature> A55 = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeatureFullFP16, FeatureDotProd,
FeatureRCPC, FeaturePerfMon];
list<SubtargetFeature> A510 = [HasV9_0aOps, FeatureNEON, FeaturePerfMon,
FeatureMatMulInt8, FeatureBF16, FeatureAM,
FeatureMTE, FeatureETE, FeatureSVE2BitPerm,
FeatureFP16FML];
list<SubtargetFeature> A65 = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeatureFullFP16, FeatureDotProd,
FeatureRCPC, FeatureSSBS, FeatureRAS,
FeaturePerfMon];
list<SubtargetFeature> A76 = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeatureFullFP16, FeatureDotProd,
FeatureRCPC, FeatureSSBS, FeaturePerfMon];
list<SubtargetFeature> A77 = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeatureFullFP16, FeatureDotProd,
FeatureRCPC, FeaturePerfMon];
list<SubtargetFeature> A78 = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeatureFullFP16, FeatureDotProd,
FeatureRCPC, FeaturePerfMon, FeatureSPE,
FeatureSSBS];
list<SubtargetFeature> A78C = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeatureFullFP16, FeatureDotProd,
FeatureFlagM, FeatureFP16FML, FeaturePAuth,
FeaturePerfMon, FeatureRCPC, FeatureSPE,
FeatureSSBS];
list<SubtargetFeature> A710 = [HasV9_0aOps, FeatureNEON, FeaturePerfMon,
FeatureETE, FeatureMTE, FeatureFP16FML,
FeatureSVE2BitPerm, FeatureBF16, FeatureMatMulInt8];
list<SubtargetFeature> R82 = [HasV8_0rOps, FeaturePerfMon, FeatureFullFP16,
FeatureFP16FML, FeatureSSBS, FeaturePredRes,
FeatureSB, FeatureSpecRestrict];
list<SubtargetFeature> X1 = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeatureRCPC, FeaturePerfMon,
FeatureSPE, FeatureFullFP16, FeatureDotProd];
list<SubtargetFeature> X1C = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeatureRCPC, FeaturePerfMon,
FeatureSPE, FeatureFullFP16, FeatureDotProd,
FeaturePAuth];
list<SubtargetFeature> X2 = [HasV9_0aOps, FeatureNEON, FeaturePerfMon,
FeatureMatMulInt8, FeatureBF16, FeatureAM,
FeatureMTE, FeatureETE, FeatureSVE2BitPerm,
FeatureFP16FML];
list<SubtargetFeature> A64FX = [HasV8_2aOps, FeatureFPARMv8, FeatureNEON,
FeatureSHA2, FeaturePerfMon, FeatureFullFP16,
FeatureSVE, FeatureComplxNum];
list<SubtargetFeature> Carmel = [HasV8_2aOps, FeatureNEON, FeatureCrypto,
FeatureFullFP16];
list<SubtargetFeature> AppleA7 = [HasV8_0aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON,FeaturePerfMon, FeatureAppleA7SysReg];
list<SubtargetFeature> AppleA10 = [HasV8_0aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeaturePerfMon, FeatureCRC,
FeatureRDM, FeaturePAN, FeatureLOR, FeatureVH];
list<SubtargetFeature> AppleA11 = [HasV8_2aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeaturePerfMon, FeatureFullFP16];
list<SubtargetFeature> AppleA12 = [HasV8_3aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeaturePerfMon, FeatureFullFP16];
list<SubtargetFeature> AppleA13 = [HasV8_4aOps, FeatureCrypto, FeatureFPARMv8,
FeatureNEON, FeaturePerfMon, FeatureFullFP16,
FeatureFP16FML, FeatureSHA3];