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      1 //===-- PPCScheduleG5.td - PPC G5 Scheduling Definitions ---*- tablegen -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file defines the itinerary class data for the G5 (970) processor.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 def G5_BPU    : FuncUnit; // Branch unit
     15 def G5_SLU    : FuncUnit; // Store/load unit
     16 def G5_SRU    : FuncUnit; // special register unit
     17 def G5_IU1    : FuncUnit; // integer unit 1 (simple)
     18 def G5_IU2    : FuncUnit; // integer unit 2 (complex)
     19 def G5_FPU1   : FuncUnit; // floating point unit 1
     20 def G5_FPU2   : FuncUnit; // floating point unit 2
     21 def G5_VPU    : FuncUnit; // vector permutation unit
     22 def G5_VIU1   : FuncUnit; // vector integer unit 1 (simple)
     23 def G5_VIU2   : FuncUnit; // vector integer unit 2 (complex)
     24 def G5_VFPU   : FuncUnit; // vector floating point unit
     25 
     26 def G5Itineraries : ProcessorItineraries<
     27   [G5_IU1, G5_IU2, G5_SLU, G5_BPU, G5_FPU1, G5_FPU2,
     28    G5_VFPU, G5_VIU1, G5_VIU2, G5_VPU], [], [
     29   InstrItinData<IIC_IntSimple   , [InstrStage<2, [G5_IU1, G5_IU2]>]>,
     30   InstrItinData<IIC_IntGeneral  , [InstrStage<2, [G5_IU1, G5_IU2]>]>,
     31   InstrItinData<IIC_IntCompare  , [InstrStage<3, [G5_IU1, G5_IU2]>]>,
     32   InstrItinData<IIC_IntDivD     , [InstrStage<68, [G5_IU1]>]>,
     33   InstrItinData<IIC_IntDivW     , [InstrStage<36, [G5_IU1]>]>,
     34   InstrItinData<IIC_IntMFFS     , [InstrStage<6, [G5_IU2]>]>,
     35   InstrItinData<IIC_IntMFVSCR   , [InstrStage<1, [G5_VFPU]>]>,
     36   InstrItinData<IIC_IntMTFSB0   , [InstrStage<6, [G5_FPU1, G5_FPU2]>]>,
     37   InstrItinData<IIC_IntMulHD    , [InstrStage<7, [G5_IU1, G5_IU2]>]>,
     38   InstrItinData<IIC_IntMulHW    , [InstrStage<5, [G5_IU1, G5_IU2]>]>,
     39   InstrItinData<IIC_IntMulHWU   , [InstrStage<5, [G5_IU1, G5_IU2]>]>,
     40   InstrItinData<IIC_IntMulLI    , [InstrStage<4, [G5_IU1, G5_IU2]>]>,
     41   InstrItinData<IIC_IntRFID     , [InstrStage<1, [G5_IU2]>]>,
     42   InstrItinData<IIC_IntRotateD  , [InstrStage<2, [G5_IU1, G5_IU2]>]>,
     43   InstrItinData<IIC_IntRotateDI , [InstrStage<2, [G5_IU1, G5_IU2]>]>,  
     44   InstrItinData<IIC_IntRotate   , [InstrStage<4, [G5_IU1, G5_IU2]>]>,
     45   InstrItinData<IIC_IntShift    , [InstrStage<2, [G5_IU1, G5_IU2]>]>,
     46   InstrItinData<IIC_IntTrapD    , [InstrStage<1, [G5_IU1, G5_IU2]>]>,
     47   InstrItinData<IIC_IntTrapW    , [InstrStage<1, [G5_IU1, G5_IU2]>]>,
     48   InstrItinData<IIC_BrB         , [InstrStage<1, [G5_BPU]>]>,
     49   InstrItinData<IIC_BrCR        , [InstrStage<4, [G5_BPU]>]>,
     50   InstrItinData<IIC_BrMCR       , [InstrStage<2, [G5_BPU]>]>,
     51   InstrItinData<IIC_BrMCRX      , [InstrStage<3, [G5_BPU]>]>,
     52   InstrItinData<IIC_LdStDCBF    , [InstrStage<3, [G5_SLU]>]>,
     53   InstrItinData<IIC_LdStLoad    , [InstrStage<3, [G5_SLU]>]>,
     54   InstrItinData<IIC_LdStLoadUpd , [InstrStage<3, [G5_SLU]>]>,  
     55   InstrItinData<IIC_LdStLoadUpdX, [InstrStage<3, [G5_SLU]>]>,  
     56   InstrItinData<IIC_LdStStore   , [InstrStage<3, [G5_SLU]>]>,
     57   InstrItinData<IIC_LdStStoreUpd, [InstrStage<3, [G5_SLU]>]>,  
     58   InstrItinData<IIC_LdStDSS     , [InstrStage<10, [G5_SLU]>]>,
     59   InstrItinData<IIC_LdStICBI    , [InstrStage<40, [G5_SLU]>]>,
     60   InstrItinData<IIC_LdStSTFD    , [InstrStage<4, [G5_SLU]>]>,
     61   InstrItinData<IIC_LdStSTFDU   , [InstrStage<4, [G5_SLU]>]>,  
     62   InstrItinData<IIC_LdStLD      , [InstrStage<3, [G5_SLU]>]>,
     63   InstrItinData<IIC_LdStLDU     , [InstrStage<3, [G5_SLU]>]>,
     64   InstrItinData<IIC_LdStLDUX    , [InstrStage<3, [G5_SLU]>]>,
     65   InstrItinData<IIC_LdStLDARX   , [InstrStage<11, [G5_SLU]>]>,
     66   InstrItinData<IIC_LdStLFD     , [InstrStage<3, [G5_SLU]>]>,
     67   InstrItinData<IIC_LdStLFDU    , [InstrStage<5, [G5_SLU]>]>,
     68   InstrItinData<IIC_LdStLFDUX   , [InstrStage<5, [G5_SLU]>]>,
     69   InstrItinData<IIC_LdStLHA     , [InstrStage<5, [G5_SLU]>]>,
     70   InstrItinData<IIC_LdStLHAU    , [InstrStage<5, [G5_SLU]>]>,  
     71   InstrItinData<IIC_LdStLHAUX   , [InstrStage<5, [G5_SLU]>]>,  
     72   InstrItinData<IIC_LdStLMW     , [InstrStage<64, [G5_SLU]>]>,
     73   InstrItinData<IIC_LdStLVecX   , [InstrStage<3, [G5_SLU]>]>,
     74   InstrItinData<IIC_LdStLWA     , [InstrStage<5, [G5_SLU]>]>,
     75   InstrItinData<IIC_LdStLWARX   , [InstrStage<11, [G5_SLU]>]>,
     76   InstrItinData<IIC_LdStSLBIA   , [InstrStage<40, [G5_SLU]>]>, // needs work
     77   InstrItinData<IIC_LdStSLBIE   , [InstrStage<2, [G5_SLU]>]>,
     78   InstrItinData<IIC_LdStSTD     , [InstrStage<3, [G5_SLU]>]>,
     79   InstrItinData<IIC_LdStSTDU    , [InstrStage<3, [G5_SLU]>]>,
     80   InstrItinData<IIC_LdStSTDUX   , [InstrStage<3, [G5_SLU]>]>,
     81   InstrItinData<IIC_LdStSTDCX   , [InstrStage<11, [G5_SLU]>]>,
     82   InstrItinData<IIC_LdStSTVEBX  , [InstrStage<5, [G5_SLU]>]>,
     83   InstrItinData<IIC_LdStSTWCX   , [InstrStage<11, [G5_SLU]>]>,
     84   InstrItinData<IIC_LdStSync    , [InstrStage<35, [G5_SLU]>]>,
     85   InstrItinData<IIC_SprISYNC    , [InstrStage<40, [G5_SLU]>]>, // needs work
     86   InstrItinData<IIC_SprMFSR     , [InstrStage<3, [G5_SLU]>]>,
     87   InstrItinData<IIC_SprMTMSR    , [InstrStage<3, [G5_SLU]>]>,
     88   InstrItinData<IIC_SprMTSR     , [InstrStage<3, [G5_SLU]>]>,
     89   InstrItinData<IIC_SprTLBSYNC  , [InstrStage<3, [G5_SLU]>]>,
     90   InstrItinData<IIC_SprMFCR     , [InstrStage<2, [G5_IU2]>]>,
     91   InstrItinData<IIC_SprMFCRF    , [InstrStage<2, [G5_IU2]>]>,
     92   InstrItinData<IIC_SprMFMSR    , [InstrStage<3, [G5_IU2]>]>,
     93   InstrItinData<IIC_SprMFSPR    , [InstrStage<3, [G5_IU2]>]>,
     94   InstrItinData<IIC_SprMFTB     , [InstrStage<10, [G5_IU2]>]>,
     95   InstrItinData<IIC_SprMTSPR    , [InstrStage<8, [G5_IU2]>]>,
     96   InstrItinData<IIC_SprSC       , [InstrStage<1, [G5_IU2]>]>,
     97   InstrItinData<IIC_FPGeneral   , [InstrStage<6, [G5_FPU1, G5_FPU2]>]>,
     98   InstrItinData<IIC_FPAddSub    , [InstrStage<6, [G5_FPU1, G5_FPU2]>]>,
     99   InstrItinData<IIC_FPCompare   , [InstrStage<8, [G5_FPU1, G5_FPU2]>]>,
    100   InstrItinData<IIC_FPDivD      , [InstrStage<33, [G5_FPU1, G5_FPU2]>]>,
    101   InstrItinData<IIC_FPDivS      , [InstrStage<33, [G5_FPU1, G5_FPU2]>]>,
    102   InstrItinData<IIC_FPFused     , [InstrStage<6, [G5_FPU1, G5_FPU2]>]>,
    103   InstrItinData<IIC_FPRes       , [InstrStage<6, [G5_FPU1, G5_FPU2]>]>,
    104   InstrItinData<IIC_FPSqrtD     , [InstrStage<40, [G5_FPU1, G5_FPU2]>]>,
    105   InstrItinData<IIC_FPSqrtS     , [InstrStage<40, [G5_FPU1, G5_FPU2]>]>,
    106   InstrItinData<IIC_VecGeneral  , [InstrStage<2, [G5_VIU1]>]>,
    107   InstrItinData<IIC_VecFP       , [InstrStage<8, [G5_VFPU]>]>,
    108   InstrItinData<IIC_VecFPCompare, [InstrStage<2, [G5_VFPU]>]>,
    109   InstrItinData<IIC_VecComplex  , [InstrStage<5, [G5_VIU2]>]>,
    110   InstrItinData<IIC_VecPerm     , [InstrStage<3, [G5_VPU]>]>,
    111   InstrItinData<IIC_VecFPRound  , [InstrStage<8, [G5_VFPU]>]>,
    112   InstrItinData<IIC_VecVSL      , [InstrStage<2, [G5_VIU1]>]>,
    113   InstrItinData<IIC_VecVSR      , [InstrStage<3, [G5_VPU]>]>
    114 ]>;
    115 
    116 // ===---------------------------------------------------------------------===//
    117 // G5 machine model for scheduling and other instruction cost heuristics.
    118 
    119 def G5Model : SchedMachineModel {
    120   let IssueWidth = 4;  // 4 (non-branch) instructions are dispatched per cycle.
    121   let MinLatency = 0;  // Out-of-order dispatch.
    122   let LoadLatency = 3; // Optimistic load latency assuming bypass.
    123                        // This is overriden by OperandCycles if the
    124                        // Itineraries are queried instead.
    125   let MispredictPenalty = 16;
    126 
    127   let Itineraries = G5Itineraries;
    128 }
    129 
    130