| //=- AArch64.td - Describe the AArch64 Target Machine --------*- tablegen -*-=// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // |
| //===----------------------------------------------------------------------===// |
| |
| //===----------------------------------------------------------------------===// |
| // 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 FeatureCrypto : SubtargetFeature<"crypto", "HasCrypto", "true", |
| "Enable cryptographic instructions", [FeatureNEON]>; |
| |
| 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 FeatureRDM : SubtargetFeature<"rdm", "HasRDM", "true", |
| "Enable ARMv8.1 Rounding Double Multiply Add/Subtract instructions">; |
| |
| def FeaturePerfMon : SubtargetFeature<"perfmon", "HasPerfMon", "true", |
| "Enable ARMv8 PMUv3 Performance Monitors extension">; |
| |
| def FeatureFullFP16 : SubtargetFeature<"fullfp16", "HasFullFP16", "true", |
| "Full FP16", [FeatureFPARMv8]>; |
| |
| def FeatureSPE : SubtargetFeature<"spe", "HasSPE", "true", |
| "Enable Statistical Profiling extension">; |
| |
| def FeatureSVE : SubtargetFeature<"sve", "HasSVE", "true", |
| "Enable Scalable Vector Extension (SVE) instructions">; |
| |
| /// Cyclone has register move instructions which are "free". |
| def FeatureZCRegMove : SubtargetFeature<"zcm", "HasZeroCycleRegMove", "true", |
| "Has zero-cycle register moves">; |
| |
| /// Cyclone has instructions which zero registers for "free". |
| def FeatureZCZeroing : SubtargetFeature<"zcz", "HasZeroCycleZeroing", "true", |
| "Has zero-cycle zeroing instructions">; |
| |
| def FeatureStrictAlign : SubtargetFeature<"strict-align", |
| "StrictAlign", "true", |
| "Disallow all unaligned memory " |
| "access">; |
| |
| def FeatureReserveX18 : SubtargetFeature<"reserve-x18", "ReserveX18", "true", |
| "Reserve X18, making it unavailable " |
| "as a GPR">; |
| |
| def FeatureUseAA : SubtargetFeature<"use-aa", "UseAA", "true", |
| "Use alias analysis during codegen">; |
| |
| 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 code for TargetInstrInfo::isAsCheapAsAMove()">; |
| |
| 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 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 FeatureFuseAES : SubtargetFeature< |
| "fuse-aes", "HasFuseAES", "true", |
| "CPU fuses AES crypto 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 FeatureUseRSqrt : SubtargetFeature< |
| "use-reciprocal-square-root", "UseRSqrt", "true", |
| "Use the reciprocal square root approximation">; |
| |
| 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">; |
| //===----------------------------------------------------------------------===// |
| // Architectures. |
| // |
| |
| def HasV8_1aOps : SubtargetFeature<"v8.1a", "HasV8_1aOps", "true", |
| "Support ARM v8.1a instructions", [FeatureCRC, FeatureLSE, FeatureRDM]>; |
| |
| def HasV8_2aOps : SubtargetFeature<"v8.2a", "HasV8_2aOps", "true", |
| "Support ARM v8.2a instructions", [HasV8_1aOps, FeatureRAS]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Register File Description |
| //===----------------------------------------------------------------------===// |
| |
| include "AArch64RegisterInfo.td" |
| include "AArch64RegisterBanks.td" |
| include "AArch64CallingConvention.td" |
| |
| //===----------------------------------------------------------------------===// |
| // Instruction Descriptions |
| //===----------------------------------------------------------------------===// |
| |
| include "AArch64Schedule.td" |
| include "AArch64InstrInfo.td" |
| |
| def AArch64InstrInfo : InstrInfo; |
| |
| //===----------------------------------------------------------------------===// |
| // Named operands for MRS/MSR/TLBI/... |
| //===----------------------------------------------------------------------===// |
| |
| include "AArch64SystemOperands.td" |
| |
| //===----------------------------------------------------------------------===// |
| // AArch64 Processors supported. |
| // |
| include "AArch64SchedA53.td" |
| include "AArch64SchedA57.td" |
| include "AArch64SchedCyclone.td" |
| include "AArch64SchedFalkor.td" |
| include "AArch64SchedKryo.td" |
| include "AArch64SchedM1.td" |
| include "AArch64SchedThunderX.td" |
| include "AArch64SchedThunderX2T99.td" |
| |
| def ProcA35 : SubtargetFeature<"a35", "ARMProcFamily", "CortexA35", |
| "Cortex-A35 ARM processors", [ |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureFPARMv8, |
| FeatureNEON, |
| FeaturePerfMon |
| ]>; |
| |
| def ProcA53 : SubtargetFeature<"a53", "ARMProcFamily", "CortexA53", |
| "Cortex-A53 ARM processors", [ |
| FeatureBalanceFPOps, |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureCustomCheapAsMoveHandling, |
| FeatureFPARMv8, |
| FeatureFuseAES, |
| FeatureNEON, |
| FeaturePerfMon, |
| FeaturePostRAScheduler, |
| FeatureUseAA |
| ]>; |
| |
| def ProcA57 : SubtargetFeature<"a57", "ARMProcFamily", "CortexA57", |
| "Cortex-A57 ARM processors", [ |
| FeatureBalanceFPOps, |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureCustomCheapAsMoveHandling, |
| FeatureFPARMv8, |
| FeatureFuseAES, |
| FeatureFuseLiterals, |
| FeatureNEON, |
| FeaturePerfMon, |
| FeaturePostRAScheduler, |
| FeaturePredictableSelectIsExpensive |
| ]>; |
| |
| def ProcA72 : SubtargetFeature<"a72", "ARMProcFamily", "CortexA72", |
| "Cortex-A72 ARM processors", [ |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureFPARMv8, |
| FeatureFuseAES, |
| FeatureNEON, |
| FeaturePerfMon |
| ]>; |
| |
| def ProcA73 : SubtargetFeature<"a73", "ARMProcFamily", "CortexA73", |
| "Cortex-A73 ARM processors", [ |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureFPARMv8, |
| FeatureFuseAES, |
| FeatureNEON, |
| FeaturePerfMon |
| ]>; |
| |
| def ProcCyclone : SubtargetFeature<"cyclone", "ARMProcFamily", "Cyclone", |
| "Cyclone", [ |
| FeatureAlternateSExtLoadCVTF32Pattern, |
| FeatureCrypto, |
| FeatureDisableLatencySchedHeuristic, |
| FeatureFPARMv8, |
| FeatureArithmeticBccFusion, |
| FeatureArithmeticCbzFusion, |
| FeatureNEON, |
| FeaturePerfMon, |
| FeatureSlowMisaligned128Store, |
| FeatureZCRegMove, |
| FeatureZCZeroing |
| ]>; |
| |
| def ProcExynosM1 : SubtargetFeature<"exynosm1", "ARMProcFamily", "ExynosM1", |
| "Samsung Exynos-M1 processors", |
| [FeatureSlowPaired128, |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureCustomCheapAsMoveHandling, |
| FeatureFPARMv8, |
| FeatureFuseAES, |
| FeatureNEON, |
| FeaturePerfMon, |
| FeaturePostRAScheduler, |
| FeatureSlowMisaligned128Store, |
| FeatureUseRSqrt, |
| FeatureZCZeroing]>; |
| |
| def ProcExynosM2 : SubtargetFeature<"exynosm2", "ARMProcFamily", "ExynosM1", |
| "Samsung Exynos-M2/M3 processors", |
| [FeatureSlowPaired128, |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureCustomCheapAsMoveHandling, |
| FeatureFPARMv8, |
| FeatureFuseAES, |
| FeatureNEON, |
| FeaturePerfMon, |
| FeaturePostRAScheduler, |
| FeatureSlowMisaligned128Store, |
| FeatureZCZeroing]>; |
| |
| def ProcKryo : SubtargetFeature<"kryo", "ARMProcFamily", "Kryo", |
| "Qualcomm Kryo processors", [ |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureCustomCheapAsMoveHandling, |
| FeatureFPARMv8, |
| FeatureNEON, |
| FeaturePerfMon, |
| FeaturePostRAScheduler, |
| FeaturePredictableSelectIsExpensive, |
| FeatureZCZeroing, |
| FeatureLSLFast |
| ]>; |
| |
| def ProcFalkor : SubtargetFeature<"falkor", "ARMProcFamily", "Falkor", |
| "Qualcomm Falkor processors", [ |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureCustomCheapAsMoveHandling, |
| FeatureFPARMv8, |
| FeatureNEON, |
| FeaturePerfMon, |
| FeaturePostRAScheduler, |
| FeaturePredictableSelectIsExpensive, |
| FeatureRDM, |
| FeatureZCZeroing, |
| FeatureLSLFast |
| ]>; |
| |
| def ProcThunderX2T99 : SubtargetFeature<"thunderx2t99", "ARMProcFamily", |
| "ThunderX2T99", |
| "Cavium ThunderX2 processors", [ |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureFPARMv8, |
| FeatureArithmeticBccFusion, |
| FeatureNEON, |
| FeaturePostRAScheduler, |
| FeaturePredictableSelectIsExpensive, |
| FeatureLSE, |
| HasV8_1aOps]>; |
| |
| def ProcThunderX : SubtargetFeature<"thunderx", "ARMProcFamily", "ThunderX", |
| "Cavium ThunderX processors", [ |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureFPARMv8, |
| FeaturePerfMon, |
| FeaturePostRAScheduler, |
| FeaturePredictableSelectIsExpensive, |
| FeatureNEON]>; |
| |
| def ProcThunderXT88 : SubtargetFeature<"thunderxt88", "ARMProcFamily", |
| "ThunderXT88", |
| "Cavium ThunderX processors", [ |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureFPARMv8, |
| FeaturePerfMon, |
| FeaturePostRAScheduler, |
| FeaturePredictableSelectIsExpensive, |
| FeatureNEON]>; |
| |
| def ProcThunderXT81 : SubtargetFeature<"thunderxt81", "ARMProcFamily", |
| "ThunderXT81", |
| "Cavium ThunderX processors", [ |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureFPARMv8, |
| FeaturePerfMon, |
| FeaturePostRAScheduler, |
| FeaturePredictableSelectIsExpensive, |
| FeatureNEON]>; |
| |
| def ProcThunderXT83 : SubtargetFeature<"thunderxt83", "ARMProcFamily", |
| "ThunderXT83", |
| "Cavium ThunderX processors", [ |
| FeatureCRC, |
| FeatureCrypto, |
| FeatureFPARMv8, |
| FeaturePerfMon, |
| FeaturePostRAScheduler, |
| FeaturePredictableSelectIsExpensive, |
| FeatureNEON]>; |
| |
| def : ProcessorModel<"generic", NoSchedModel, [ |
| FeatureFPARMv8, |
| FeatureFuseAES, |
| FeatureNEON, |
| FeaturePerfMon, |
| FeaturePostRAScheduler |
| ]>; |
| |
| // FIXME: Cortex-A35 is currently modeled as a Cortex-A53. |
| def : ProcessorModel<"cortex-a35", CortexA53Model, [ProcA35]>; |
| def : ProcessorModel<"cortex-a53", CortexA53Model, [ProcA53]>; |
| def : ProcessorModel<"cortex-a57", CortexA57Model, [ProcA57]>; |
| // FIXME: Cortex-A72 and Cortex-A73 are currently modeled as a Cortex-A57. |
| def : ProcessorModel<"cortex-a72", CortexA57Model, [ProcA72]>; |
| def : ProcessorModel<"cortex-a73", CortexA57Model, [ProcA73]>; |
| def : ProcessorModel<"cyclone", CycloneModel, [ProcCyclone]>; |
| def : ProcessorModel<"exynos-m1", ExynosM1Model, [ProcExynosM1]>; |
| def : ProcessorModel<"exynos-m2", ExynosM1Model, [ProcExynosM2]>; |
| def : ProcessorModel<"exynos-m3", ExynosM1Model, [ProcExynosM2]>; |
| def : ProcessorModel<"falkor", FalkorModel, [ProcFalkor]>; |
| def : ProcessorModel<"kryo", KryoModel, [ProcKryo]>; |
| // Cavium ThunderX/ThunderX T8X Processors |
| def : ProcessorModel<"thunderx", ThunderXT8XModel, [ProcThunderX]>; |
| def : ProcessorModel<"thunderxt88", ThunderXT8XModel, [ProcThunderXT88]>; |
| def : ProcessorModel<"thunderxt81", ThunderXT8XModel, [ProcThunderXT81]>; |
| def : ProcessorModel<"thunderxt83", ThunderXT8XModel, [ProcThunderXT83]>; |
| // Cavium ThunderX2T9X Processors. Formerly Broadcom Vulcan. |
| def : ProcessorModel<"thunderx2t99", ThunderX2T99Model, [ProcThunderX2T99]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Assembly parser |
| //===----------------------------------------------------------------------===// |
| |
| def GenericAsmParserVariant : AsmParserVariant { |
| int Variant = 0; |
| string Name = "generic"; |
| string BreakCharacters = "."; |
| } |
| |
| def AppleAsmParserVariant : AsmParserVariant { |
| int Variant = 1; |
| string Name = "apple-neon"; |
| string BreakCharacters = "."; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Assembly printer |
| //===----------------------------------------------------------------------===// |
| // AArch64 Uses the MC printer for asm output, so make sure the TableGen |
| // AsmWriter bits get associated with the correct class. |
| def GenericAsmWriter : AsmWriter { |
| string AsmWriterClassName = "InstPrinter"; |
| int PassSubtarget = 1; |
| int Variant = 0; |
| bit isMCAsmWriter = 1; |
| } |
| |
| def AppleAsmWriter : AsmWriter { |
| let AsmWriterClassName = "AppleInstPrinter"; |
| int PassSubtarget = 1; |
| int Variant = 1; |
| int isMCAsmWriter = 1; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Target Declaration |
| //===----------------------------------------------------------------------===// |
| |
| def AArch64 : Target { |
| let InstructionSet = AArch64InstrInfo; |
| let AssemblyParserVariants = [GenericAsmParserVariant, AppleAsmParserVariant]; |
| let AssemblyWriters = [GenericAsmWriter, AppleAsmWriter]; |
| } |
