mirror of
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c559ba7251
of the abi we should be using. For targets that don't use the option there's no change, otherwise this allows external users to set the ABI via string and avoid some of the -backend-option pain in clang. Use this option to move the ABI for the ARM port from the Subtarget to the TargetMachine and update the testcases accordingly since it's no longer valid to set via -mattr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224492 91177308-0d34-0410-b5e6-96231b3b80d8
451 lines
23 KiB
TableGen
451 lines
23 KiB
TableGen
//===-- ARM.td - Describe the ARM Target Machine -----------*- tablegen -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// Target-independent interfaces which we are implementing
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//===----------------------------------------------------------------------===//
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include "llvm/Target/Target.td"
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//===----------------------------------------------------------------------===//
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// ARM Subtarget state.
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//
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def ModeThumb : SubtargetFeature<"thumb-mode", "InThumbMode", "true",
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"Thumb mode">;
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//===----------------------------------------------------------------------===//
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// ARM Subtarget features.
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//
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def FeatureVFP2 : SubtargetFeature<"vfp2", "HasVFPv2", "true",
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"Enable VFP2 instructions">;
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def FeatureVFP3 : SubtargetFeature<"vfp3", "HasVFPv3", "true",
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"Enable VFP3 instructions",
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[FeatureVFP2]>;
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def FeatureNEON : SubtargetFeature<"neon", "HasNEON", "true",
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"Enable NEON instructions",
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[FeatureVFP3]>;
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def FeatureThumb2 : SubtargetFeature<"thumb2", "HasThumb2", "true",
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"Enable Thumb2 instructions">;
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def FeatureNoARM : SubtargetFeature<"noarm", "NoARM", "true",
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"Does not support ARM mode execution",
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[ModeThumb]>;
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def FeatureFP16 : SubtargetFeature<"fp16", "HasFP16", "true",
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"Enable half-precision floating point">;
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def FeatureVFP4 : SubtargetFeature<"vfp4", "HasVFPv4", "true",
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"Enable VFP4 instructions",
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[FeatureVFP3, FeatureFP16]>;
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def FeatureFPARMv8 : SubtargetFeature<"fp-armv8", "HasFPARMv8",
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"true", "Enable ARMv8 FP",
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[FeatureVFP4]>;
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def FeatureD16 : SubtargetFeature<"d16", "HasD16", "true",
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"Restrict VFP3 to 16 double registers">;
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def FeatureHWDiv : SubtargetFeature<"hwdiv", "HasHardwareDivide", "true",
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"Enable divide instructions">;
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def FeatureHWDivARM : SubtargetFeature<"hwdiv-arm",
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"HasHardwareDivideInARM", "true",
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"Enable divide instructions in ARM mode">;
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def FeatureT2XtPk : SubtargetFeature<"t2xtpk", "HasT2ExtractPack", "true",
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"Enable Thumb2 extract and pack instructions">;
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def FeatureDB : SubtargetFeature<"db", "HasDataBarrier", "true",
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"Has data barrier (dmb / dsb) instructions">;
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def FeatureSlowFPBrcc : SubtargetFeature<"slow-fp-brcc", "SlowFPBrcc", "true",
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"FP compare + branch is slow">;
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def FeatureVFPOnlySP : SubtargetFeature<"fp-only-sp", "FPOnlySP", "true",
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"Floating point unit supports single precision only">;
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def FeaturePerfMon : SubtargetFeature<"perfmon", "HasPerfMon", "true",
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"Enable support for Performance Monitor extensions">;
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def FeatureTrustZone : SubtargetFeature<"trustzone", "HasTrustZone", "true",
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"Enable support for TrustZone security extensions">;
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def FeatureCrypto : SubtargetFeature<"crypto", "HasCrypto", "true",
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"Enable support for Cryptography extensions",
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[FeatureNEON]>;
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def FeatureCRC : SubtargetFeature<"crc", "HasCRC", "true",
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"Enable support for CRC instructions">;
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// Cyclone has preferred instructions for zeroing VFP registers, which can
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// execute in 0 cycles.
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def FeatureZCZeroing : SubtargetFeature<"zcz", "HasZeroCycleZeroing", "true",
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"Has zero-cycle zeroing instructions">;
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// Some processors have FP multiply-accumulate instructions that don't
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// play nicely with other VFP / NEON instructions, and it's generally better
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// to just not use them.
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def FeatureHasSlowFPVMLx : SubtargetFeature<"slowfpvmlx", "SlowFPVMLx", "true",
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"Disable VFP / NEON MAC instructions">;
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// Cortex-A8 / A9 Advanced SIMD has multiplier accumulator forwarding.
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def FeatureVMLxForwarding : SubtargetFeature<"vmlx-forwarding",
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"HasVMLxForwarding", "true",
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"Has multiplier accumulator forwarding">;
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// Some processors benefit from using NEON instructions for scalar
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// single-precision FP operations.
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def FeatureNEONForFP : SubtargetFeature<"neonfp", "UseNEONForSinglePrecisionFP",
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"true",
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"Use NEON for single precision FP">;
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// Disable 32-bit to 16-bit narrowing for experimentation.
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def FeaturePref32BitThumb : SubtargetFeature<"32bit", "Pref32BitThumb", "true",
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"Prefer 32-bit Thumb instrs">;
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/// Some instructions update CPSR partially, which can add false dependency for
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/// out-of-order implementation, e.g. Cortex-A9, unless each individual bit is
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/// mapped to a separate physical register. Avoid partial CPSR update for these
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/// processors.
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def FeatureAvoidPartialCPSR : SubtargetFeature<"avoid-partial-cpsr",
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"AvoidCPSRPartialUpdate", "true",
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"Avoid CPSR partial update for OOO execution">;
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def FeatureAvoidMOVsShOp : SubtargetFeature<"avoid-movs-shop",
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"AvoidMOVsShifterOperand", "true",
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"Avoid movs instructions with shifter operand">;
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// Some processors perform return stack prediction. CodeGen should avoid issue
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// "normal" call instructions to callees which do not return.
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def FeatureHasRAS : SubtargetFeature<"ras", "HasRAS", "true",
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"Has return address stack">;
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/// Some M architectures don't have the DSP extension (v7E-M vs. v7M)
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def FeatureDSPThumb2 : SubtargetFeature<"t2dsp", "Thumb2DSP", "true",
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"Supports v7 DSP instructions in Thumb2">;
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// Multiprocessing extension.
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def FeatureMP : SubtargetFeature<"mp", "HasMPExtension", "true",
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"Supports Multiprocessing extension">;
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// Virtualization extension - requires HW divide (ARMv7-AR ARMARM - 4.4.8).
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def FeatureVirtualization : SubtargetFeature<"virtualization",
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"HasVirtualization", "true",
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"Supports Virtualization extension",
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[FeatureHWDiv, FeatureHWDivARM]>;
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// M-series ISA
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def FeatureMClass : SubtargetFeature<"mclass", "ARMProcClass", "MClass",
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"Is microcontroller profile ('M' series)">;
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// R-series ISA
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def FeatureRClass : SubtargetFeature<"rclass", "ARMProcClass", "RClass",
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"Is realtime profile ('R' series)">;
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// A-series ISA
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def FeatureAClass : SubtargetFeature<"aclass", "ARMProcClass", "AClass",
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"Is application profile ('A' series)">;
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// Special TRAP encoding for NaCl, which looks like a TRAP in Thumb too.
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// See ARMInstrInfo.td for details.
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def FeatureNaClTrap : SubtargetFeature<"nacl-trap", "UseNaClTrap", "true",
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"NaCl trap">;
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// ARM ISAs.
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def HasV4TOps : SubtargetFeature<"v4t", "HasV4TOps", "true",
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"Support ARM v4T instructions">;
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def HasV5TOps : SubtargetFeature<"v5t", "HasV5TOps", "true",
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"Support ARM v5T instructions",
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[HasV4TOps]>;
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def HasV5TEOps : SubtargetFeature<"v5te", "HasV5TEOps", "true",
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"Support ARM v5TE, v5TEj, and v5TExp instructions",
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[HasV5TOps]>;
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def HasV6Ops : SubtargetFeature<"v6", "HasV6Ops", "true",
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"Support ARM v6 instructions",
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[HasV5TEOps]>;
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def HasV6MOps : SubtargetFeature<"v6m", "HasV6MOps", "true",
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"Support ARM v6M instructions",
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[HasV6Ops]>;
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def HasV6T2Ops : SubtargetFeature<"v6t2", "HasV6T2Ops", "true",
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"Support ARM v6t2 instructions",
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[HasV6MOps, FeatureThumb2]>;
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def HasV7Ops : SubtargetFeature<"v7", "HasV7Ops", "true",
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"Support ARM v7 instructions",
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[HasV6T2Ops, FeaturePerfMon]>;
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def HasV8Ops : SubtargetFeature<"v8", "HasV8Ops", "true",
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"Support ARM v8 instructions",
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[HasV7Ops, FeatureVirtualization,
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FeatureMP]>;
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//===----------------------------------------------------------------------===//
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// ARM Processors supported.
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//
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include "ARMSchedule.td"
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// ARM processor families.
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def ProcA5 : SubtargetFeature<"a5", "ARMProcFamily", "CortexA5",
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"Cortex-A5 ARM processors",
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[FeatureSlowFPBrcc, FeatureHasSlowFPVMLx,
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FeatureVMLxForwarding, FeatureT2XtPk,
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FeatureTrustZone, FeatureMP]>;
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def ProcA7 : SubtargetFeature<"a7", "ARMProcFamily", "CortexA7",
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"Cortex-A7 ARM processors",
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[FeatureSlowFPBrcc, FeatureHasSlowFPVMLx,
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FeatureVMLxForwarding, FeatureT2XtPk,
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FeatureVFP4, FeatureMP,
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FeatureHWDiv, FeatureHWDivARM,
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FeatureTrustZone, FeatureVirtualization]>;
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def ProcA8 : SubtargetFeature<"a8", "ARMProcFamily", "CortexA8",
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"Cortex-A8 ARM processors",
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[FeatureSlowFPBrcc, FeatureHasSlowFPVMLx,
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FeatureVMLxForwarding, FeatureT2XtPk,
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FeatureTrustZone]>;
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def ProcA9 : SubtargetFeature<"a9", "ARMProcFamily", "CortexA9",
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"Cortex-A9 ARM processors",
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[FeatureVMLxForwarding,
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FeatureT2XtPk, FeatureFP16,
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FeatureAvoidPartialCPSR,
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FeatureTrustZone]>;
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def ProcSwift : SubtargetFeature<"swift", "ARMProcFamily", "Swift",
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"Swift ARM processors",
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[FeatureNEONForFP, FeatureT2XtPk,
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FeatureVFP4, FeatureMP, FeatureHWDiv,
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FeatureHWDivARM, FeatureAvoidPartialCPSR,
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FeatureAvoidMOVsShOp,
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FeatureHasSlowFPVMLx, FeatureTrustZone]>;
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def ProcA12 : SubtargetFeature<"a12", "ARMProcFamily", "CortexA12",
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"Cortex-A12 ARM processors",
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[FeatureVMLxForwarding,
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FeatureT2XtPk, FeatureVFP4,
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FeatureHWDiv, FeatureHWDivARM,
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FeatureAvoidPartialCPSR,
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FeatureVirtualization,
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FeatureTrustZone]>;
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// FIXME: It has not been determined if A15 has these features.
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def ProcA15 : SubtargetFeature<"a15", "ARMProcFamily", "CortexA15",
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"Cortex-A15 ARM processors",
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[FeatureT2XtPk, FeatureVFP4,
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FeatureMP, FeatureHWDiv, FeatureHWDivARM,
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FeatureAvoidPartialCPSR,
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FeatureTrustZone, FeatureVirtualization]>;
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def ProcA17 : SubtargetFeature<"a17", "ARMProcFamily", "CortexA17",
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"Cortex-A17 ARM processors",
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[FeatureVMLxForwarding,
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FeatureT2XtPk, FeatureVFP4,
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FeatureHWDiv, FeatureHWDivARM,
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FeatureAvoidPartialCPSR,
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FeatureVirtualization,
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FeatureTrustZone]>;
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def ProcA53 : SubtargetFeature<"a53", "ARMProcFamily", "CortexA53",
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"Cortex-A53 ARM processors",
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[FeatureHWDiv, FeatureHWDivARM,
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FeatureTrustZone, FeatureT2XtPk,
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FeatureCrypto, FeatureCRC]>;
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def ProcA57 : SubtargetFeature<"a57", "ARMProcFamily", "CortexA57",
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"Cortex-A57 ARM processors",
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[FeatureHWDiv, FeatureHWDivARM,
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FeatureTrustZone, FeatureT2XtPk,
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FeatureCrypto, FeatureCRC]>;
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def ProcR5 : SubtargetFeature<"r5", "ARMProcFamily", "CortexR5",
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"Cortex-R5 ARM processors",
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[FeatureSlowFPBrcc,
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FeatureHWDiv, FeatureHWDivARM,
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FeatureHasSlowFPVMLx,
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FeatureAvoidPartialCPSR,
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FeatureT2XtPk]>;
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// FIXME: krait has currently the same features as A9
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// plus VFP4 and hardware division features.
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def ProcKrait : SubtargetFeature<"krait", "ARMProcFamily", "Krait",
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"Qualcomm ARM processors",
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[FeatureVMLxForwarding,
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FeatureT2XtPk, FeatureFP16,
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FeatureAvoidPartialCPSR,
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FeatureTrustZone,
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FeatureVFP4,
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FeatureHWDiv,
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FeatureHWDivARM]>;
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class ProcNoItin<string Name, list<SubtargetFeature> Features>
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: Processor<Name, NoItineraries, Features>;
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// V4 Processors.
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def : ProcNoItin<"generic", []>;
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def : ProcNoItin<"arm8", []>;
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def : ProcNoItin<"arm810", []>;
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def : ProcNoItin<"strongarm", []>;
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def : ProcNoItin<"strongarm110", []>;
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def : ProcNoItin<"strongarm1100", []>;
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def : ProcNoItin<"strongarm1110", []>;
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// V4T Processors.
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def : ProcNoItin<"arm7tdmi", [HasV4TOps]>;
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def : ProcNoItin<"arm7tdmi-s", [HasV4TOps]>;
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def : ProcNoItin<"arm710t", [HasV4TOps]>;
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def : ProcNoItin<"arm720t", [HasV4TOps]>;
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def : ProcNoItin<"arm9", [HasV4TOps]>;
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def : ProcNoItin<"arm9tdmi", [HasV4TOps]>;
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def : ProcNoItin<"arm920", [HasV4TOps]>;
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def : ProcNoItin<"arm920t", [HasV4TOps]>;
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def : ProcNoItin<"arm922t", [HasV4TOps]>;
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def : ProcNoItin<"arm940t", [HasV4TOps]>;
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def : ProcNoItin<"ep9312", [HasV4TOps]>;
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// V5T Processors.
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def : ProcNoItin<"arm10tdmi", [HasV5TOps]>;
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def : ProcNoItin<"arm1020t", [HasV5TOps]>;
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// V5TE Processors.
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def : ProcNoItin<"arm9e", [HasV5TEOps]>;
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def : ProcNoItin<"arm926ej-s", [HasV5TEOps]>;
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def : ProcNoItin<"arm946e-s", [HasV5TEOps]>;
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def : ProcNoItin<"arm966e-s", [HasV5TEOps]>;
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def : ProcNoItin<"arm968e-s", [HasV5TEOps]>;
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def : ProcNoItin<"arm10e", [HasV5TEOps]>;
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def : ProcNoItin<"arm1020e", [HasV5TEOps]>;
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def : ProcNoItin<"arm1022e", [HasV5TEOps]>;
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def : ProcNoItin<"xscale", [HasV5TEOps]>;
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def : ProcNoItin<"iwmmxt", [HasV5TEOps]>;
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// V6 Processors.
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def : Processor<"arm1136j-s", ARMV6Itineraries, [HasV6Ops]>;
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def : Processor<"arm1136jf-s", ARMV6Itineraries, [HasV6Ops, FeatureVFP2,
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FeatureHasSlowFPVMLx]>;
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def : Processor<"arm1176jz-s", ARMV6Itineraries, [HasV6Ops]>;
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def : Processor<"arm1176jzf-s", ARMV6Itineraries, [HasV6Ops, FeatureVFP2,
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FeatureHasSlowFPVMLx]>;
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def : Processor<"mpcorenovfp", ARMV6Itineraries, [HasV6Ops]>;
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def : Processor<"mpcore", ARMV6Itineraries, [HasV6Ops, FeatureVFP2,
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FeatureHasSlowFPVMLx]>;
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// V6M Processors.
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def : Processor<"cortex-m0", ARMV6Itineraries, [HasV6MOps, FeatureNoARM,
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FeatureDB, FeatureMClass]>;
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// V6T2 Processors.
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def : Processor<"arm1156t2-s", ARMV6Itineraries, [HasV6T2Ops,
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FeatureDSPThumb2]>;
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def : Processor<"arm1156t2f-s", ARMV6Itineraries, [HasV6T2Ops, FeatureVFP2,
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FeatureHasSlowFPVMLx,
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FeatureDSPThumb2]>;
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// V7a Processors.
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// FIXME: A5 has currently the same Schedule model as A8
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def : ProcessorModel<"cortex-a5", CortexA8Model,
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[ProcA5, HasV7Ops, FeatureNEON, FeatureDB,
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FeatureVFP4, FeatureDSPThumb2,
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FeatureHasRAS, FeatureAClass]>;
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def : ProcessorModel<"cortex-a7", CortexA8Model,
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[ProcA7, HasV7Ops, FeatureNEON, FeatureDB,
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FeatureDSPThumb2, FeatureHasRAS,
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FeatureAClass]>;
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def : ProcessorModel<"cortex-a8", CortexA8Model,
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[ProcA8, HasV7Ops, FeatureNEON, FeatureDB,
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FeatureDSPThumb2, FeatureHasRAS,
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FeatureAClass]>;
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def : ProcessorModel<"cortex-a9", CortexA9Model,
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[ProcA9, HasV7Ops, FeatureNEON, FeatureDB,
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FeatureDSPThumb2, FeatureHasRAS, FeatureMP,
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FeatureAClass]>;
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// FIXME: A12 has currently the same Schedule model as A9
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def : ProcessorModel<"cortex-a12", CortexA9Model,
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[ProcA12, HasV7Ops, FeatureNEON, FeatureDB,
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FeatureDSPThumb2, FeatureMP,
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FeatureHasRAS, FeatureAClass]>;
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// FIXME: A15 has currently the same ProcessorModel as A9.
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def : ProcessorModel<"cortex-a15", CortexA9Model,
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[ProcA15, HasV7Ops, FeatureNEON, FeatureDB,
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FeatureDSPThumb2, FeatureHasRAS,
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FeatureAClass]>;
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// FIXME: A17 has currently the same Schedule model as A9
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def : ProcessorModel<"cortex-a17", CortexA9Model,
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[ProcA17, HasV7Ops, FeatureNEON, FeatureDB,
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FeatureDSPThumb2, FeatureMP,
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FeatureHasRAS, FeatureAClass]>;
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// FIXME: krait has currently the same Schedule model as A9
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def : ProcessorModel<"krait", CortexA9Model,
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[ProcKrait, HasV7Ops,
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FeatureNEON, FeatureDB,
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FeatureDSPThumb2, FeatureHasRAS,
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FeatureAClass]>;
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// FIXME: R5 has currently the same ProcessorModel as A8.
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def : ProcessorModel<"cortex-r5", CortexA8Model,
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[ProcR5, HasV7Ops, FeatureDB,
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FeatureVFP3, FeatureDSPThumb2,
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FeatureHasRAS, FeatureVFPOnlySP,
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FeatureD16, FeatureRClass]>;
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// V7M Processors.
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def : ProcNoItin<"cortex-m3", [HasV7Ops,
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FeatureThumb2, FeatureNoARM, FeatureDB,
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FeatureHWDiv, FeatureMClass]>;
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// V7EM Processors.
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def : ProcNoItin<"cortex-m4", [HasV7Ops,
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FeatureThumb2, FeatureNoARM, FeatureDB,
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FeatureHWDiv, FeatureDSPThumb2,
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FeatureT2XtPk, FeatureVFP4,
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FeatureVFPOnlySP, FeatureD16,
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FeatureMClass]>;
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def : ProcNoItin<"cortex-m7", [HasV7Ops,
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FeatureThumb2, FeatureNoARM, FeatureDB,
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FeatureHWDiv, FeatureDSPThumb2,
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FeatureT2XtPk, FeatureFPARMv8,
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FeatureD16, FeatureMClass]>;
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// Swift uArch Processors.
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def : ProcessorModel<"swift", SwiftModel,
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[ProcSwift, HasV7Ops, FeatureNEON,
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FeatureDB, FeatureDSPThumb2,
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FeatureHasRAS, FeatureAClass]>;
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// V8 Processors
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def : ProcNoItin<"cortex-a53", [ProcA53, HasV8Ops, FeatureAClass,
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FeatureDB, FeatureFPARMv8,
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FeatureNEON, FeatureDSPThumb2]>;
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|
def : ProcNoItin<"cortex-a57", [ProcA57, HasV8Ops, FeatureAClass,
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FeatureDB, FeatureFPARMv8,
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|
FeatureNEON, FeatureDSPThumb2]>;
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|
|
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// Cyclone is very similar to swift
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def : ProcessorModel<"cyclone", SwiftModel,
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[ProcSwift, HasV8Ops, HasV7Ops,
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|
FeatureCrypto, FeatureFPARMv8,
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|
FeatureDB,FeatureDSPThumb2,
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|
FeatureHasRAS, FeatureZCZeroing]>;
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|
|
|
//===----------------------------------------------------------------------===//
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|
// Register File Description
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|
//===----------------------------------------------------------------------===//
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|
|
|
include "ARMRegisterInfo.td"
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|
|
|
include "ARMCallingConv.td"
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|
|
|
//===----------------------------------------------------------------------===//
|
|
// Instruction Descriptions
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
include "ARMInstrInfo.td"
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|
|
|
def ARMInstrInfo : InstrInfo;
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|
|
|
//===----------------------------------------------------------------------===//
|
|
// Declare the target which we are implementing
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
def ARM : Target {
|
|
// Pull in Instruction Info:
|
|
let InstructionSet = ARMInstrInfo;
|
|
}
|