|  | //===-- Sparc.td - Describe the Sparc 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" | 
|  |  | 
|  | //===----------------------------------------------------------------------===// | 
|  | // SPARC Subtarget features. | 
|  | // | 
|  |  | 
|  | def FeatureSoftMulDiv | 
|  | : SubtargetFeature<"soft-mul-div", "UseSoftMulDiv", "true", | 
|  | "Use software emulation for integer multiply and divide">; | 
|  |  | 
|  | def FeatureNoFSMULD | 
|  | : SubtargetFeature<"no-fsmuld", "HasNoFSMULD", "true", | 
|  | "Disable the fsmuld instruction.">; | 
|  | def FeatureNoFMULS | 
|  | : SubtargetFeature<"no-fmuls", "HasNoFMULS", "true", | 
|  | "Disable the fmuls instruction.">; | 
|  |  | 
|  | def FeatureV9 | 
|  | : SubtargetFeature<"v9", "IsV9", "true", | 
|  | "Enable SPARC-V9 instructions">; | 
|  | def FeatureV8Deprecated | 
|  | : SubtargetFeature<"deprecated-v8", "V8DeprecatedInsts", "true", | 
|  | "Enable deprecated V8 instructions in V9 mode">; | 
|  | def FeatureVIS | 
|  | : SubtargetFeature<"vis", "IsVIS", "true", | 
|  | "Enable UltraSPARC Visual Instruction Set extensions">; | 
|  | def FeatureVIS2 | 
|  | : SubtargetFeature<"vis2", "IsVIS2", "true", | 
|  | "Enable Visual Instruction Set extensions II">; | 
|  | def FeatureVIS3 | 
|  | : SubtargetFeature<"vis3", "IsVIS3", "true", | 
|  | "Enable Visual Instruction Set extensions III">; | 
|  | def FeatureLeon | 
|  | : SubtargetFeature<"leon", "IsLeon", "true", | 
|  | "Enable LEON extensions">; | 
|  | def FeaturePWRPSR | 
|  | : SubtargetFeature<"leonpwrpsr", "HasPWRPSR", "true", | 
|  | "Enable the PWRPSR instruction">; | 
|  |  | 
|  | def FeatureHardQuad | 
|  | : SubtargetFeature<"hard-quad-float", "HasHardQuad", "true", | 
|  | "Enable quad-word floating point instructions">; | 
|  |  | 
|  | def UsePopc : SubtargetFeature<"popc", "UsePopc", "true", | 
|  | "Use the popc (population count) instruction">; | 
|  |  | 
|  | def FeatureSoftFloat : SubtargetFeature<"soft-float", "UseSoftFloat", "true", | 
|  | "Use software emulation for floating point">; | 
|  |  | 
|  | //==== Features added predmoninantly for LEON subtarget support | 
|  | include "LeonFeatures.td" | 
|  |  | 
|  | //===----------------------------------------------------------------------===// | 
|  | // Register File, Calling Conv, Instruction Descriptions | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | include "SparcRegisterInfo.td" | 
|  | include "SparcCallingConv.td" | 
|  | include "SparcSchedule.td" | 
|  | include "SparcInstrInfo.td" | 
|  |  | 
|  | def SparcInstrInfo : InstrInfo; | 
|  |  | 
|  | def SparcAsmParser : AsmParser { | 
|  | bit ShouldEmitMatchRegisterName = 0; | 
|  | } | 
|  |  | 
|  | //===----------------------------------------------------------------------===// | 
|  | // SPARC processors supported. | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | class Proc<string Name, list<SubtargetFeature> Features> | 
|  | : Processor<Name, NoItineraries, Features>; | 
|  |  | 
|  | def : Proc<"generic",         []>; | 
|  | def : Proc<"v7",              [FeatureSoftMulDiv, FeatureNoFSMULD]>; | 
|  | def : Proc<"v8",              []>; | 
|  | def : Proc<"supersparc",      []>; | 
|  | def : Proc<"sparclite",       []>; | 
|  | def : Proc<"f934",            []>; | 
|  | def : Proc<"hypersparc",      []>; | 
|  | def : Proc<"sparclite86x",    []>; | 
|  | def : Proc<"sparclet",        []>; | 
|  | def : Proc<"tsc701",          []>; | 
|  | def : Proc<"myriad2",         [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"myriad2.1",       [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"myriad2.2",       [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"myriad2.3",       [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2100",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2150",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2155",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2450",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2455",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2x5x",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2080",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2085",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2480",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2485",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"ma2x8x",          [FeatureLeon, LeonCASA]>; | 
|  | def : Proc<"v9",              [FeatureV9]>; | 
|  | def : Proc<"ultrasparc",      [FeatureV9, FeatureV8Deprecated, FeatureVIS]>; | 
|  | def : Proc<"ultrasparc3",     [FeatureV9, FeatureV8Deprecated, FeatureVIS, | 
|  | FeatureVIS2]>; | 
|  | def : Proc<"niagara",         [FeatureV9, FeatureV8Deprecated, FeatureVIS, | 
|  | FeatureVIS2]>; | 
|  | def : Proc<"niagara2",        [FeatureV9, FeatureV8Deprecated, UsePopc, | 
|  | FeatureVIS, FeatureVIS2]>; | 
|  | def : Proc<"niagara3",        [FeatureV9, FeatureV8Deprecated, UsePopc, | 
|  | FeatureVIS, FeatureVIS2]>; | 
|  | def : Proc<"niagara4",        [FeatureV9, FeatureV8Deprecated, UsePopc, | 
|  | FeatureVIS, FeatureVIS2, FeatureVIS3]>; | 
|  |  | 
|  | // LEON 2 FT generic | 
|  | def : Processor<"leon2", LEON2Itineraries, | 
|  | [FeatureLeon]>; | 
|  |  | 
|  | // LEON 2 FT (AT697E) | 
|  | // TO DO: Place-holder: Processor specific features will be added *very* soon here. | 
|  | def : Processor<"at697e", LEON2Itineraries, | 
|  | [FeatureLeon, InsertNOPLoad]>; | 
|  |  | 
|  | // LEON 2 FT (AT697F) | 
|  | // TO DO: Place-holder: Processor specific features will be added *very* soon here. | 
|  | def : Processor<"at697f", LEON2Itineraries, | 
|  | [FeatureLeon, InsertNOPLoad]>; | 
|  |  | 
|  |  | 
|  | // LEON 3 FT generic | 
|  | def : Processor<"leon3", LEON3Itineraries, | 
|  | [FeatureLeon, UMACSMACSupport]>; | 
|  |  | 
|  | // LEON 3 FT (UT699). Provides features for the UT699 processor | 
|  | // - covers all the erratum fixes for LEON3, but does not support the CASA instruction. | 
|  | def : Processor<"ut699", LEON3Itineraries, | 
|  | [FeatureLeon, InsertNOPLoad, FeatureNoFSMULD, FeatureNoFMULS, FixAllFDIVSQRT]>; | 
|  |  | 
|  | // LEON3 FT (GR712RC). Provides features for the GR712RC processor. | 
|  | // - covers all the erratum fixed for LEON3 and support for the CASA instruction. | 
|  | def : Processor<"gr712rc", LEON3Itineraries, | 
|  | [FeatureLeon, LeonCASA]>; | 
|  |  | 
|  | // LEON 4 FT generic | 
|  | def : Processor<"leon4", LEON4Itineraries, | 
|  | [FeatureLeon, UMACSMACSupport, LeonCASA]>; | 
|  |  | 
|  | // LEON 4 FT (GR740) | 
|  | // TO DO: Place-holder: Processor specific features will be added *very* soon here. | 
|  | def : Processor<"gr740", LEON4Itineraries, | 
|  | [FeatureLeon, UMACSMACSupport, LeonCASA, LeonCycleCounter, | 
|  | FeaturePWRPSR]>; | 
|  |  | 
|  | //===----------------------------------------------------------------------===// | 
|  | // Declare the target which we are implementing | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | def SparcAsmWriter : AsmWriter { | 
|  | string AsmWriterClassName  = "InstPrinter"; | 
|  | int PassSubtarget = 1; | 
|  | int Variant = 0; | 
|  | } | 
|  |  | 
|  | def Sparc : Target { | 
|  | // Pull in Instruction Info: | 
|  | let InstructionSet = SparcInstrInfo; | 
|  | let AssemblyParsers  = [SparcAsmParser]; | 
|  | let AssemblyWriters = [SparcAsmWriter]; | 
|  | let AllowRegisterRenaming = 1; | 
|  | } |