| // Copyright 2016 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // +build ignore |
| |
| package main |
| |
| import "strings" |
| |
| // Notes: |
| // - Less-than-64-bit integer types live in the low portion of registers. |
| // For now, the upper portion is junk; sign/zero-extension might be optimized in the future, but not yet. |
| // - Boolean types are zero or 1; stored in a byte, but loaded with AMOVBZ so the upper bytes of a register are zero. |
| // - *const instructions may use a constant larger than the instruction can encode. |
| // In this case the assembler expands to multiple instructions and uses tmp |
| // register (R31). |
| |
| var regNamesPPC64 = []string{ |
| "R0", // REGZERO, not used, but simplifies counting in regalloc |
| "SP", // REGSP |
| "SB", // REGSB |
| "R3", |
| "R4", |
| "R5", |
| "R6", |
| "R7", |
| "R8", |
| "R9", |
| "R10", |
| "R11", // REGCTXT for closures |
| "R12", |
| "R13", // REGTLS |
| "R14", |
| "R15", |
| "R16", |
| "R17", |
| "R18", |
| "R19", |
| "R20", |
| "R21", |
| "R22", |
| "R23", |
| "R24", |
| "R25", |
| "R26", |
| "R27", |
| "R28", |
| "R29", |
| "g", // REGG. Using name "g" and setting Config.hasGReg makes it "just happen". |
| "R31", // REGTMP |
| |
| "F0", |
| "F1", |
| "F2", |
| "F3", |
| "F4", |
| "F5", |
| "F6", |
| "F7", |
| "F8", |
| "F9", |
| "F10", |
| "F11", |
| "F12", |
| "F13", |
| "F14", |
| "F15", |
| "F16", |
| "F17", |
| "F18", |
| "F19", |
| "F20", |
| "F21", |
| "F22", |
| "F23", |
| "F24", |
| "F25", |
| "F26", |
| "F27", |
| "F28", |
| "F29", |
| "F30", |
| "F31", |
| |
| // If you add registers, update asyncPreempt in runtime. |
| |
| // "CR0", |
| // "CR1", |
| // "CR2", |
| // "CR3", |
| // "CR4", |
| // "CR5", |
| // "CR6", |
| // "CR7", |
| |
| // "CR", |
| // "XER", |
| // "LR", |
| // "CTR", |
| } |
| |
| func init() { |
| // Make map from reg names to reg integers. |
| if len(regNamesPPC64) > 64 { |
| panic("too many registers") |
| } |
| num := map[string]int{} |
| for i, name := range regNamesPPC64 { |
| num[name] = i |
| } |
| buildReg := func(s string) regMask { |
| m := regMask(0) |
| for _, r := range strings.Split(s, " ") { |
| if n, ok := num[r]; ok { |
| m |= regMask(1) << uint(n) |
| continue |
| } |
| panic("register " + r + " not found") |
| } |
| return m |
| } |
| |
| var ( |
| gp = buildReg("R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29") |
| fp = buildReg("F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26") |
| sp = buildReg("SP") |
| sb = buildReg("SB") |
| gr = buildReg("g") |
| // cr = buildReg("CR") |
| // ctr = buildReg("CTR") |
| // lr = buildReg("LR") |
| tmp = buildReg("R31") |
| ctxt = buildReg("R11") |
| callptr = buildReg("R12") |
| // tls = buildReg("R13") |
| gp01 = regInfo{inputs: nil, outputs: []regMask{gp}} |
| gp11 = regInfo{inputs: []regMask{gp | sp | sb}, outputs: []regMask{gp}} |
| gp21 = regInfo{inputs: []regMask{gp | sp | sb, gp | sp | sb}, outputs: []regMask{gp}} |
| gp21a0 = regInfo{inputs: []regMask{gp, gp | sp | sb}, outputs: []regMask{gp}} |
| gp31 = regInfo{inputs: []regMask{gp | sp | sb, gp | sp | sb, gp | sp | sb}, outputs: []regMask{gp}} |
| gp22 = regInfo{inputs: []regMask{gp | sp | sb, gp | sp | sb}, outputs: []regMask{gp, gp}} |
| gp32 = regInfo{inputs: []regMask{gp | sp | sb, gp | sp | sb, gp | sp | sb}, outputs: []regMask{gp, gp}} |
| gp1cr = regInfo{inputs: []regMask{gp | sp | sb}} |
| gp2cr = regInfo{inputs: []regMask{gp | sp | sb, gp | sp | sb}} |
| crgp = regInfo{inputs: nil, outputs: []regMask{gp}} |
| crgp11 = regInfo{inputs: []regMask{gp}, outputs: []regMask{gp}} |
| crgp21 = regInfo{inputs: []regMask{gp, gp}, outputs: []regMask{gp}} |
| gpload = regInfo{inputs: []regMask{gp | sp | sb}, outputs: []regMask{gp}} |
| gploadidx = regInfo{inputs: []regMask{gp | sp | sb, gp}, outputs: []regMask{gp}} |
| gpstore = regInfo{inputs: []regMask{gp | sp | sb, gp | sp | sb}} |
| gpstoreidx = regInfo{inputs: []regMask{gp | sp | sb, gp | sp | sb, gp | sp | sb}} |
| gpstorezero = regInfo{inputs: []regMask{gp | sp | sb}} // ppc64.REGZERO is reserved zero value |
| gpxchg = regInfo{inputs: []regMask{gp | sp | sb, gp}, outputs: []regMask{gp}} |
| gpcas = regInfo{inputs: []regMask{gp | sp | sb, gp, gp}, outputs: []regMask{gp}} |
| fp01 = regInfo{inputs: nil, outputs: []regMask{fp}} |
| fp11 = regInfo{inputs: []regMask{fp}, outputs: []regMask{fp}} |
| fpgp = regInfo{inputs: []regMask{fp}, outputs: []regMask{gp}} |
| gpfp = regInfo{inputs: []regMask{gp}, outputs: []regMask{fp}} |
| fp21 = regInfo{inputs: []regMask{fp, fp}, outputs: []regMask{fp}} |
| fp31 = regInfo{inputs: []regMask{fp, fp, fp}, outputs: []regMask{fp}} |
| fp2cr = regInfo{inputs: []regMask{fp, fp}} |
| fpload = regInfo{inputs: []regMask{gp | sp | sb}, outputs: []regMask{fp}} |
| fploadidx = regInfo{inputs: []regMask{gp | sp | sb, gp | sp | sb}, outputs: []regMask{fp}} |
| fpstore = regInfo{inputs: []regMask{gp | sp | sb, fp}} |
| fpstoreidx = regInfo{inputs: []regMask{gp | sp | sb, gp | sp | sb, fp}} |
| callerSave = regMask(gp | fp | gr) |
| r3 = buildReg("R3") |
| r4 = buildReg("R4") |
| r5 = buildReg("R5") |
| r6 = buildReg("R6") |
| ) |
| ops := []opData{ |
| {name: "ADD", argLength: 2, reg: gp21, asm: "ADD", commutative: true}, // arg0 + arg1 |
| {name: "ADDconst", argLength: 1, reg: gp11, asm: "ADD", aux: "Int64"}, // arg0 + auxInt |
| {name: "FADD", argLength: 2, reg: fp21, asm: "FADD", commutative: true}, // arg0+arg1 |
| {name: "FADDS", argLength: 2, reg: fp21, asm: "FADDS", commutative: true}, // arg0+arg1 |
| {name: "SUB", argLength: 2, reg: gp21, asm: "SUB"}, // arg0-arg1 |
| {name: "SUBFCconst", argLength: 1, reg: gp11, asm: "SUBC", aux: "Int64"}, // auxInt - arg0 (with carry) |
| {name: "FSUB", argLength: 2, reg: fp21, asm: "FSUB"}, // arg0-arg1 |
| {name: "FSUBS", argLength: 2, reg: fp21, asm: "FSUBS"}, // arg0-arg1 |
| |
| {name: "MULLD", argLength: 2, reg: gp21, asm: "MULLD", typ: "Int64", commutative: true}, // arg0*arg1 (signed 64-bit) |
| {name: "MULLW", argLength: 2, reg: gp21, asm: "MULLW", typ: "Int32", commutative: true}, // arg0*arg1 (signed 32-bit) |
| {name: "MULLDconst", argLength: 1, reg: gp11, asm: "MULLD", aux: "Int32", typ: "Int64"}, // arg0*auxInt (signed 64-bit) |
| {name: "MULLWconst", argLength: 1, reg: gp11, asm: "MULLW", aux: "Int32", typ: "Int64"}, // arg0*auxInt (signed 64-bit) |
| {name: "MADDLD", argLength: 3, reg: gp31, asm: "MADDLD", typ: "Int64"}, // (arg0*arg1)+arg2 (signed 64-bit) |
| |
| {name: "MULHD", argLength: 2, reg: gp21, asm: "MULHD", commutative: true}, // (arg0 * arg1) >> 64, signed |
| {name: "MULHW", argLength: 2, reg: gp21, asm: "MULHW", commutative: true}, // (arg0 * arg1) >> 32, signed |
| {name: "MULHDU", argLength: 2, reg: gp21, asm: "MULHDU", commutative: true}, // (arg0 * arg1) >> 64, unsigned |
| {name: "MULHWU", argLength: 2, reg: gp21, asm: "MULHWU", commutative: true}, // (arg0 * arg1) >> 32, unsigned |
| {name: "LoweredMuluhilo", argLength: 2, reg: gp22, resultNotInArgs: true}, // arg0 * arg1, returns (hi, lo) |
| |
| {name: "FMUL", argLength: 2, reg: fp21, asm: "FMUL", commutative: true}, // arg0*arg1 |
| {name: "FMULS", argLength: 2, reg: fp21, asm: "FMULS", commutative: true}, // arg0*arg1 |
| |
| {name: "FMADD", argLength: 3, reg: fp31, asm: "FMADD"}, // arg0*arg1 + arg2 |
| {name: "FMADDS", argLength: 3, reg: fp31, asm: "FMADDS"}, // arg0*arg1 + arg2 |
| {name: "FMSUB", argLength: 3, reg: fp31, asm: "FMSUB"}, // arg0*arg1 - arg2 |
| {name: "FMSUBS", argLength: 3, reg: fp31, asm: "FMSUBS"}, // arg0*arg1 - arg2 |
| |
| {name: "SRAD", argLength: 2, reg: gp21, asm: "SRAD"}, // signed arg0 >> (arg1&127), 64 bit width (note: 127, not 63!) |
| {name: "SRAW", argLength: 2, reg: gp21, asm: "SRAW"}, // signed arg0 >> (arg1&63), 32 bit width |
| {name: "SRD", argLength: 2, reg: gp21, asm: "SRD"}, // unsigned arg0 >> (arg1&127), 64 bit width |
| {name: "SRW", argLength: 2, reg: gp21, asm: "SRW"}, // unsigned arg0 >> (arg1&63), 32 bit width |
| {name: "SLD", argLength: 2, reg: gp21, asm: "SLD"}, // arg0 << (arg1&127), 64 bit width |
| {name: "SLW", argLength: 2, reg: gp21, asm: "SLW"}, // arg0 << (arg1&63), 32 bit width |
| |
| {name: "ROTL", argLength: 2, reg: gp21, asm: "ROTL"}, // arg0 rotate left by arg1 mod 64 |
| {name: "ROTLW", argLength: 2, reg: gp21, asm: "ROTLW"}, // uint32(arg0) rotate left by arg1 mod 32 |
| // The following are ops to implement the extended mnemonics for shifts as described in section C.8 of the ISA. |
| // The constant shift values are packed into the aux int32. |
| {name: "RLDICL", argLength: 1, reg: gp11, asm: "RLDICL", aux: "Int32"}, // arg0 extract bits identified by shift params" |
| {name: "CLRLSLWI", argLength: 1, reg: gp11, asm: "CLRLSLWI", aux: "Int32"}, // |
| {name: "CLRLSLDI", argLength: 1, reg: gp11, asm: "CLRLSLDI", aux: "Int32"}, // |
| |
| {name: "LoweredAdd64Carry", argLength: 3, reg: gp32, resultNotInArgs: true}, // arg0 + arg1 + carry, returns (sum, carry) |
| |
| {name: "SRADconst", argLength: 1, reg: gp11, asm: "SRAD", aux: "Int64"}, // signed arg0 >> auxInt, 0 <= auxInt < 64, 64 bit width |
| {name: "SRAWconst", argLength: 1, reg: gp11, asm: "SRAW", aux: "Int64"}, // signed arg0 >> auxInt, 0 <= auxInt < 32, 32 bit width |
| {name: "SRDconst", argLength: 1, reg: gp11, asm: "SRD", aux: "Int64"}, // unsigned arg0 >> auxInt, 0 <= auxInt < 64, 64 bit width |
| {name: "SRWconst", argLength: 1, reg: gp11, asm: "SRW", aux: "Int64"}, // unsigned arg0 >> auxInt, 0 <= auxInt < 32, 32 bit width |
| {name: "SLDconst", argLength: 1, reg: gp11, asm: "SLD", aux: "Int64"}, // arg0 << auxInt, 0 <= auxInt < 64, 64 bit width |
| {name: "SLWconst", argLength: 1, reg: gp11, asm: "SLW", aux: "Int64"}, // arg0 << auxInt, 0 <= auxInt < 32, 32 bit width |
| |
| {name: "ROTLconst", argLength: 1, reg: gp11, asm: "ROTL", aux: "Int64"}, // arg0 rotate left by auxInt bits |
| {name: "ROTLWconst", argLength: 1, reg: gp11, asm: "ROTLW", aux: "Int64"}, // uint32(arg0) rotate left by auxInt bits |
| {name: "EXTSWSLconst", argLength: 1, reg: gp11, asm: "EXTSWSLI", aux: "Int64"}, |
| |
| {name: "RLWINM", argLength: 1, reg: gp11, asm: "RLWNM", aux: "Int64"}, // Rotate and mask by immediate "rlwinm". encodePPC64RotateMask describes aux |
| {name: "RLWNM", argLength: 2, reg: gp21, asm: "RLWNM", aux: "Int64"}, // Rotate and mask by "rlwnm". encodePPC64RotateMask describes aux |
| {name: "RLWMI", argLength: 2, reg: gp21a0, asm: "RLWMI", aux: "Int64", resultInArg0: true}, // "rlwimi" similar aux encoding as above |
| |
| {name: "CNTLZD", argLength: 1, reg: gp11, asm: "CNTLZD", clobberFlags: true}, // count leading zeros |
| {name: "CNTLZW", argLength: 1, reg: gp11, asm: "CNTLZW", clobberFlags: true}, // count leading zeros (32 bit) |
| |
| {name: "CNTTZD", argLength: 1, reg: gp11, asm: "CNTTZD"}, // count trailing zeros |
| {name: "CNTTZW", argLength: 1, reg: gp11, asm: "CNTTZW"}, // count trailing zeros (32 bit) |
| |
| {name: "POPCNTD", argLength: 1, reg: gp11, asm: "POPCNTD"}, // number of set bits in arg0 |
| {name: "POPCNTW", argLength: 1, reg: gp11, asm: "POPCNTW"}, // number of set bits in each word of arg0 placed in corresponding word |
| {name: "POPCNTB", argLength: 1, reg: gp11, asm: "POPCNTB"}, // number of set bits in each byte of arg0 placed in corresponding byte |
| |
| {name: "FDIV", argLength: 2, reg: fp21, asm: "FDIV"}, // arg0/arg1 |
| {name: "FDIVS", argLength: 2, reg: fp21, asm: "FDIVS"}, // arg0/arg1 |
| |
| {name: "DIVD", argLength: 2, reg: gp21, asm: "DIVD", typ: "Int64"}, // arg0/arg1 (signed 64-bit) |
| {name: "DIVW", argLength: 2, reg: gp21, asm: "DIVW", typ: "Int32"}, // arg0/arg1 (signed 32-bit) |
| {name: "DIVDU", argLength: 2, reg: gp21, asm: "DIVDU", typ: "Int64"}, // arg0/arg1 (unsigned 64-bit) |
| {name: "DIVWU", argLength: 2, reg: gp21, asm: "DIVWU", typ: "Int32"}, // arg0/arg1 (unsigned 32-bit) |
| |
| {name: "MODUD", argLength: 2, reg: gp21, asm: "MODUD", typ: "UInt64"}, // arg0 % arg1 (unsigned 64-bit) |
| {name: "MODSD", argLength: 2, reg: gp21, asm: "MODSD", typ: "Int64"}, // arg0 % arg1 (signed 64-bit) |
| {name: "MODUW", argLength: 2, reg: gp21, asm: "MODUW", typ: "UInt32"}, // arg0 % arg1 (unsigned 32-bit) |
| {name: "MODSW", argLength: 2, reg: gp21, asm: "MODSW", typ: "Int32"}, // arg0 % arg1 (signed 32-bit) |
| // MOD is implemented as rem := arg0 - (arg0/arg1) * arg1 |
| |
| // Conversions are all float-to-float register operations. "Integer" refers to encoding in the FP register. |
| {name: "FCTIDZ", argLength: 1, reg: fp11, asm: "FCTIDZ", typ: "Float64"}, // convert float to 64-bit int round towards zero |
| {name: "FCTIWZ", argLength: 1, reg: fp11, asm: "FCTIWZ", typ: "Float64"}, // convert float to 32-bit int round towards zero |
| {name: "FCFID", argLength: 1, reg: fp11, asm: "FCFID", typ: "Float64"}, // convert 64-bit integer to float |
| {name: "FCFIDS", argLength: 1, reg: fp11, asm: "FCFIDS", typ: "Float32"}, // convert 32-bit integer to float |
| {name: "FRSP", argLength: 1, reg: fp11, asm: "FRSP", typ: "Float64"}, // round float to 32-bit value |
| |
| // Movement between float and integer registers with no change in bits; accomplished with stores+loads on PPC. |
| // Because the 32-bit load-literal-bits instructions have impoverished addressability, always widen the |
| // data instead and use FMOVDload and FMOVDstore instead (this will also dodge endianess issues). |
| // There are optimizations that should apply -- (Xi2f64 (MOVWload (not-ADD-ptr+offset) ) ) could use |
| // the word-load instructions. (Xi2f64 (MOVDload ptr )) can be (FMOVDload ptr) |
| |
| {name: "MFVSRD", argLength: 1, reg: fpgp, asm: "MFVSRD", typ: "Int64"}, // move 64 bits of F register into G register |
| {name: "MTVSRD", argLength: 1, reg: gpfp, asm: "MTVSRD", typ: "Float64"}, // move 64 bits of G register into F register |
| |
| {name: "AND", argLength: 2, reg: gp21, asm: "AND", commutative: true}, // arg0&arg1 |
| {name: "ANDN", argLength: 2, reg: gp21, asm: "ANDN"}, // arg0&^arg1 |
| {name: "ANDCC", argLength: 2, reg: gp2cr, asm: "ANDCC", commutative: true, typ: "Flags"}, // arg0&arg1 sets CC |
| {name: "OR", argLength: 2, reg: gp21, asm: "OR", commutative: true}, // arg0|arg1 |
| {name: "ORN", argLength: 2, reg: gp21, asm: "ORN"}, // arg0|^arg1 |
| {name: "ORCC", argLength: 2, reg: gp2cr, asm: "ORCC", commutative: true, typ: "Flags"}, // arg0|arg1 sets CC |
| {name: "NOR", argLength: 2, reg: gp21, asm: "NOR", commutative: true}, // ^(arg0|arg1) |
| {name: "XOR", argLength: 2, reg: gp21, asm: "XOR", typ: "Int64", commutative: true}, // arg0^arg1 |
| {name: "XORCC", argLength: 2, reg: gp2cr, asm: "XORCC", commutative: true, typ: "Flags"}, // arg0^arg1 sets CC |
| {name: "EQV", argLength: 2, reg: gp21, asm: "EQV", typ: "Int64", commutative: true}, // arg0^^arg1 |
| {name: "NEG", argLength: 1, reg: gp11, asm: "NEG"}, // -arg0 (integer) |
| {name: "FNEG", argLength: 1, reg: fp11, asm: "FNEG"}, // -arg0 (floating point) |
| {name: "FSQRT", argLength: 1, reg: fp11, asm: "FSQRT"}, // sqrt(arg0) (floating point) |
| {name: "FSQRTS", argLength: 1, reg: fp11, asm: "FSQRTS"}, // sqrt(arg0) (floating point, single precision) |
| {name: "FFLOOR", argLength: 1, reg: fp11, asm: "FRIM"}, // floor(arg0), float64 |
| {name: "FCEIL", argLength: 1, reg: fp11, asm: "FRIP"}, // ceil(arg0), float64 |
| {name: "FTRUNC", argLength: 1, reg: fp11, asm: "FRIZ"}, // trunc(arg0), float64 |
| {name: "FROUND", argLength: 1, reg: fp11, asm: "FRIN"}, // round(arg0), float64 |
| {name: "FABS", argLength: 1, reg: fp11, asm: "FABS"}, // abs(arg0), float64 |
| {name: "FNABS", argLength: 1, reg: fp11, asm: "FNABS"}, // -abs(arg0), float64 |
| {name: "FCPSGN", argLength: 2, reg: fp21, asm: "FCPSGN"}, // copysign arg0 -> arg1, float64 |
| |
| {name: "ORconst", argLength: 1, reg: gp11, asm: "OR", aux: "Int64"}, // arg0|aux |
| {name: "XORconst", argLength: 1, reg: gp11, asm: "XOR", aux: "Int64"}, // arg0^aux |
| {name: "ANDconst", argLength: 1, reg: regInfo{inputs: []regMask{gp | sp | sb}, outputs: []regMask{gp}}, asm: "ANDCC", aux: "Int64", clobberFlags: true}, // arg0&aux // and-immediate sets CC on PPC, always. |
| {name: "ANDCCconst", argLength: 1, reg: regInfo{inputs: []regMask{gp | sp | sb}}, asm: "ANDCC", aux: "Int64", typ: "Flags"}, // arg0&aux == 0 // and-immediate sets CC on PPC, always. |
| |
| {name: "MOVBreg", argLength: 1, reg: gp11, asm: "MOVB", typ: "Int64"}, // sign extend int8 to int64 |
| {name: "MOVBZreg", argLength: 1, reg: gp11, asm: "MOVBZ", typ: "Int64"}, // zero extend uint8 to uint64 |
| {name: "MOVHreg", argLength: 1, reg: gp11, asm: "MOVH", typ: "Int64"}, // sign extend int16 to int64 |
| {name: "MOVHZreg", argLength: 1, reg: gp11, asm: "MOVHZ", typ: "Int64"}, // zero extend uint16 to uint64 |
| {name: "MOVWreg", argLength: 1, reg: gp11, asm: "MOVW", typ: "Int64"}, // sign extend int32 to int64 |
| {name: "MOVWZreg", argLength: 1, reg: gp11, asm: "MOVWZ", typ: "Int64"}, // zero extend uint32 to uint64 |
| |
| // Load bytes in the endian order of the arch from arg0+aux+auxint into a 64 bit register. |
| {name: "MOVBZload", argLength: 2, reg: gpload, asm: "MOVBZ", aux: "SymOff", typ: "UInt8", faultOnNilArg0: true, symEffect: "Read"}, // load byte zero extend |
| {name: "MOVHload", argLength: 2, reg: gpload, asm: "MOVH", aux: "SymOff", typ: "Int16", faultOnNilArg0: true, symEffect: "Read"}, // load 2 bytes sign extend |
| {name: "MOVHZload", argLength: 2, reg: gpload, asm: "MOVHZ", aux: "SymOff", typ: "UInt16", faultOnNilArg0: true, symEffect: "Read"}, // load 2 bytes zero extend |
| {name: "MOVWload", argLength: 2, reg: gpload, asm: "MOVW", aux: "SymOff", typ: "Int32", faultOnNilArg0: true, symEffect: "Read"}, // load 4 bytes sign extend |
| {name: "MOVWZload", argLength: 2, reg: gpload, asm: "MOVWZ", aux: "SymOff", typ: "UInt32", faultOnNilArg0: true, symEffect: "Read"}, // load 4 bytes zero extend |
| {name: "MOVDload", argLength: 2, reg: gpload, asm: "MOVD", aux: "SymOff", typ: "Int64", faultOnNilArg0: true, symEffect: "Read"}, // load 8 bytes |
| |
| // Load bytes in reverse endian order of the arch from arg0 into a 64 bit register, all zero extend. |
| // The generated instructions are indexed loads with no offset field in the instruction so the aux fields are not used. |
| // In these cases the index register field is set to 0 and the full address is in the base register. |
| {name: "MOVDBRload", argLength: 2, reg: gpload, asm: "MOVDBR", aux: "SymOff", typ: "Int64", faultOnNilArg0: true, symEffect: "Read"}, // load 8 bytes reverse order |
| {name: "MOVWBRload", argLength: 2, reg: gpload, asm: "MOVWBR", aux: "SymOff", typ: "Int32", faultOnNilArg0: true, symEffect: "Read"}, // load 4 bytes zero extend reverse order |
| {name: "MOVHBRload", argLength: 2, reg: gpload, asm: "MOVHBR", aux: "SymOff", typ: "Int16", faultOnNilArg0: true, symEffect: "Read"}, // load 2 bytes zero extend reverse order |
| |
| // In these cases an index register is used in addition to a base register |
| // Loads from memory location arg[0] + arg[1]. |
| {name: "MOVBZloadidx", argLength: 3, reg: gploadidx, asm: "MOVBZ", typ: "UInt8"}, // zero extend uint8 to uint64 |
| {name: "MOVHloadidx", argLength: 3, reg: gploadidx, asm: "MOVH", typ: "Int16"}, // sign extend int16 to int64 |
| {name: "MOVHZloadidx", argLength: 3, reg: gploadidx, asm: "MOVHZ", typ: "UInt16"}, // zero extend uint16 to uint64 |
| {name: "MOVWloadidx", argLength: 3, reg: gploadidx, asm: "MOVW", typ: "Int32"}, // sign extend int32 to int64 |
| {name: "MOVWZloadidx", argLength: 3, reg: gploadidx, asm: "MOVWZ", typ: "UInt32"}, // zero extend uint32 to uint64 |
| {name: "MOVDloadidx", argLength: 3, reg: gploadidx, asm: "MOVD", typ: "Int64"}, |
| {name: "MOVHBRloadidx", argLength: 3, reg: gploadidx, asm: "MOVHBR", typ: "Int16"}, // sign extend int16 to int64 |
| {name: "MOVWBRloadidx", argLength: 3, reg: gploadidx, asm: "MOVWBR", typ: "Int32"}, // sign extend int32 to int64 |
| {name: "MOVDBRloadidx", argLength: 3, reg: gploadidx, asm: "MOVDBR", typ: "Int64"}, |
| {name: "FMOVDloadidx", argLength: 3, reg: fploadidx, asm: "FMOVD", typ: "Float64"}, |
| {name: "FMOVSloadidx", argLength: 3, reg: fploadidx, asm: "FMOVS", typ: "Float32"}, |
| |
| // Store bytes in the reverse endian order of the arch into arg0. |
| // These are indexed stores with no offset field in the instruction so the auxint fields are not used. |
| {name: "MOVDBRstore", argLength: 3, reg: gpstore, asm: "MOVDBR", aux: "Sym", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store 8 bytes reverse order |
| {name: "MOVWBRstore", argLength: 3, reg: gpstore, asm: "MOVWBR", aux: "Sym", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store 4 bytes reverse order |
| {name: "MOVHBRstore", argLength: 3, reg: gpstore, asm: "MOVHBR", aux: "Sym", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store 2 bytes reverse order |
| |
| // Floating point loads from arg0+aux+auxint |
| {name: "FMOVDload", argLength: 2, reg: fpload, asm: "FMOVD", aux: "SymOff", typ: "Float64", faultOnNilArg0: true, symEffect: "Read"}, // load double float |
| {name: "FMOVSload", argLength: 2, reg: fpload, asm: "FMOVS", aux: "SymOff", typ: "Float32", faultOnNilArg0: true, symEffect: "Read"}, // load single float |
| |
| // Store bytes in the endian order of the arch into arg0+aux+auxint |
| {name: "MOVBstore", argLength: 3, reg: gpstore, asm: "MOVB", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store byte |
| {name: "MOVHstore", argLength: 3, reg: gpstore, asm: "MOVH", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store 2 bytes |
| {name: "MOVWstore", argLength: 3, reg: gpstore, asm: "MOVW", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store 4 bytes |
| {name: "MOVDstore", argLength: 3, reg: gpstore, asm: "MOVD", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store 8 bytes |
| |
| // Store floating point value into arg0+aux+auxint |
| {name: "FMOVDstore", argLength: 3, reg: fpstore, asm: "FMOVD", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store double flot |
| {name: "FMOVSstore", argLength: 3, reg: fpstore, asm: "FMOVS", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store single float |
| |
| // Stores using index and base registers |
| // Stores to arg[0] + arg[1] |
| {name: "MOVBstoreidx", argLength: 4, reg: gpstoreidx, asm: "MOVB", typ: "Mem"}, // store bye |
| {name: "MOVHstoreidx", argLength: 4, reg: gpstoreidx, asm: "MOVH", typ: "Mem"}, // store half word |
| {name: "MOVWstoreidx", argLength: 4, reg: gpstoreidx, asm: "MOVW", typ: "Mem"}, // store word |
| {name: "MOVDstoreidx", argLength: 4, reg: gpstoreidx, asm: "MOVD", typ: "Mem"}, // store double word |
| {name: "FMOVDstoreidx", argLength: 4, reg: fpstoreidx, asm: "FMOVD", typ: "Mem"}, // store double float |
| {name: "FMOVSstoreidx", argLength: 4, reg: fpstoreidx, asm: "FMOVS", typ: "Mem"}, // store single float |
| {name: "MOVHBRstoreidx", argLength: 4, reg: gpstoreidx, asm: "MOVHBR", typ: "Mem"}, // store half word reversed byte using index reg |
| {name: "MOVWBRstoreidx", argLength: 4, reg: gpstoreidx, asm: "MOVWBR", typ: "Mem"}, // store word reversed byte using index reg |
| {name: "MOVDBRstoreidx", argLength: 4, reg: gpstoreidx, asm: "MOVDBR", typ: "Mem"}, // store double word reversed byte using index reg |
| |
| // The following ops store 0 into arg0+aux+auxint arg1=mem |
| {name: "MOVBstorezero", argLength: 2, reg: gpstorezero, asm: "MOVB", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store zero 1 byte |
| {name: "MOVHstorezero", argLength: 2, reg: gpstorezero, asm: "MOVH", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store zero 2 bytes |
| {name: "MOVWstorezero", argLength: 2, reg: gpstorezero, asm: "MOVW", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store zero 4 bytes |
| {name: "MOVDstorezero", argLength: 2, reg: gpstorezero, asm: "MOVD", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store zero 8 bytes |
| |
| {name: "MOVDaddr", argLength: 1, reg: regInfo{inputs: []regMask{sp | sb | gp}, outputs: []regMask{gp}}, aux: "SymOff", asm: "MOVD", rematerializeable: true, symEffect: "Addr"}, // arg0 + auxInt + aux.(*gc.Sym), arg0=SP/SB/GP |
| |
| {name: "MOVDconst", argLength: 0, reg: gp01, aux: "Int64", asm: "MOVD", typ: "Int64", rematerializeable: true}, // |
| {name: "FMOVDconst", argLength: 0, reg: fp01, aux: "Float64", asm: "FMOVD", rematerializeable: true}, // |
| {name: "FMOVSconst", argLength: 0, reg: fp01, aux: "Float32", asm: "FMOVS", rematerializeable: true}, // |
| {name: "FCMPU", argLength: 2, reg: fp2cr, asm: "FCMPU", typ: "Flags"}, |
| |
| {name: "CMP", argLength: 2, reg: gp2cr, asm: "CMP", typ: "Flags"}, // arg0 compare to arg1 |
| {name: "CMPU", argLength: 2, reg: gp2cr, asm: "CMPU", typ: "Flags"}, // arg0 compare to arg1 |
| {name: "CMPW", argLength: 2, reg: gp2cr, asm: "CMPW", typ: "Flags"}, // arg0 compare to arg1 |
| {name: "CMPWU", argLength: 2, reg: gp2cr, asm: "CMPWU", typ: "Flags"}, // arg0 compare to arg1 |
| {name: "CMPconst", argLength: 1, reg: gp1cr, asm: "CMP", aux: "Int64", typ: "Flags"}, |
| {name: "CMPUconst", argLength: 1, reg: gp1cr, asm: "CMPU", aux: "Int64", typ: "Flags"}, |
| {name: "CMPWconst", argLength: 1, reg: gp1cr, asm: "CMPW", aux: "Int32", typ: "Flags"}, |
| {name: "CMPWUconst", argLength: 1, reg: gp1cr, asm: "CMPWU", aux: "Int32", typ: "Flags"}, |
| |
| // ISEL auxInt values 0=LT 1=GT 2=EQ arg2 ? arg0 : arg1 |
| // ISEL auxInt values 4=GE 5=LE 6=NE arg2 ? arg1 : arg0 |
| // ISELB special case where arg0, arg1 values are 0, 1 for boolean result |
| {name: "ISEL", argLength: 3, reg: crgp21, asm: "ISEL", aux: "Int32", typ: "Int32"}, // see above |
| {name: "ISELB", argLength: 2, reg: crgp11, asm: "ISEL", aux: "Int32", typ: "Int32"}, // see above |
| |
| // pseudo-ops |
| {name: "Equal", argLength: 1, reg: crgp}, // bool, true flags encode x==y false otherwise. |
| {name: "NotEqual", argLength: 1, reg: crgp}, // bool, true flags encode x!=y false otherwise. |
| {name: "LessThan", argLength: 1, reg: crgp}, // bool, true flags encode x<y false otherwise. |
| {name: "FLessThan", argLength: 1, reg: crgp}, // bool, true flags encode x<y false otherwise. |
| {name: "LessEqual", argLength: 1, reg: crgp}, // bool, true flags encode x<=y false otherwise. |
| {name: "FLessEqual", argLength: 1, reg: crgp}, // bool, true flags encode x<=y false otherwise; PPC <= === !> which is wrong for NaN |
| {name: "GreaterThan", argLength: 1, reg: crgp}, // bool, true flags encode x>y false otherwise. |
| {name: "FGreaterThan", argLength: 1, reg: crgp}, // bool, true flags encode x>y false otherwise. |
| {name: "GreaterEqual", argLength: 1, reg: crgp}, // bool, true flags encode x>=y false otherwise. |
| {name: "FGreaterEqual", argLength: 1, reg: crgp}, // bool, true flags encode x>=y false otherwise.; PPC >= === !< which is wrong for NaN |
| |
| // Scheduler ensures LoweredGetClosurePtr occurs only in entry block, |
| // and sorts it to the very beginning of the block to prevent other |
| // use of the closure pointer. |
| {name: "LoweredGetClosurePtr", reg: regInfo{outputs: []regMask{ctxt}}, zeroWidth: true}, |
| |
| // LoweredGetCallerSP returns the SP of the caller of the current function. |
| {name: "LoweredGetCallerSP", reg: gp01, rematerializeable: true}, |
| |
| // LoweredGetCallerPC evaluates to the PC to which its "caller" will return. |
| // I.e., if f calls g "calls" getcallerpc, |
| // the result should be the PC within f that g will return to. |
| // See runtime/stubs.go for a more detailed discussion. |
| {name: "LoweredGetCallerPC", reg: gp01, rematerializeable: true}, |
| |
| //arg0=ptr,arg1=mem, returns void. Faults if ptr is nil. |
| {name: "LoweredNilCheck", argLength: 2, reg: regInfo{inputs: []regMask{gp | sp | sb}, clobbers: tmp}, clobberFlags: true, nilCheck: true, faultOnNilArg0: true}, |
| // Round ops to block fused-multiply-add extraction. |
| {name: "LoweredRound32F", argLength: 1, reg: fp11, resultInArg0: true, zeroWidth: true}, |
| {name: "LoweredRound64F", argLength: 1, reg: fp11, resultInArg0: true, zeroWidth: true}, |
| |
| {name: "CALLstatic", argLength: 1, reg: regInfo{clobbers: callerSave}, aux: "CallOff", clobberFlags: true, call: true}, // call static function aux.(*obj.LSym). arg0=mem, auxint=argsize, returns mem |
| {name: "CALLclosure", argLength: 3, reg: regInfo{inputs: []regMask{callptr, ctxt, 0}, clobbers: callerSave}, aux: "CallOff", clobberFlags: true, call: true}, // call function via closure. arg0=codeptr, arg1=closure, arg2=mem, auxint=argsize, returns mem |
| {name: "CALLinter", argLength: 2, reg: regInfo{inputs: []regMask{callptr}, clobbers: callerSave}, aux: "CallOff", clobberFlags: true, call: true}, // call fn by pointer. arg0=codeptr, arg1=mem, auxint=argsize, returns mem |
| |
| // large or unaligned zeroing |
| // arg0 = address of memory to zero (in R3, changed as side effect) |
| // returns mem |
| // |
| // a loop is generated when there is more than one iteration |
| // needed to clear 4 doublewords |
| // |
| // XXLXOR VS32,VS32,VS32 |
| // MOVD $len/32,R31 |
| // MOVD R31,CTR |
| // MOVD $16,R31 |
| // loop: |
| // STXVD2X VS32,(R0)(R3) |
| // STXVD2X VS32,(R31),R3) |
| // ADD R3,32 |
| // BC loop |
| |
| // remaining doubleword clears generated as needed |
| // MOVD R0,(R3) |
| // MOVD R0,8(R3) |
| // MOVD R0,16(R3) |
| // MOVD R0,24(R3) |
| |
| // one or more of these to clear remainder < 8 bytes |
| // MOVW R0,n1(R3) |
| // MOVH R0,n2(R3) |
| // MOVB R0,n3(R3) |
| { |
| name: "LoweredZero", |
| aux: "Int64", |
| argLength: 2, |
| reg: regInfo{ |
| inputs: []regMask{buildReg("R20")}, |
| clobbers: buildReg("R20"), |
| }, |
| clobberFlags: true, |
| typ: "Mem", |
| faultOnNilArg0: true, |
| unsafePoint: true, |
| }, |
| { |
| name: "LoweredZeroShort", |
| aux: "Int64", |
| argLength: 2, |
| reg: regInfo{ |
| inputs: []regMask{gp}}, |
| typ: "Mem", |
| faultOnNilArg0: true, |
| unsafePoint: true, |
| }, |
| { |
| name: "LoweredQuadZeroShort", |
| aux: "Int64", |
| argLength: 2, |
| reg: regInfo{ |
| inputs: []regMask{gp}, |
| }, |
| typ: "Mem", |
| faultOnNilArg0: true, |
| unsafePoint: true, |
| }, |
| { |
| name: "LoweredQuadZero", |
| aux: "Int64", |
| argLength: 2, |
| reg: regInfo{ |
| inputs: []regMask{buildReg("R20")}, |
| clobbers: buildReg("R20"), |
| }, |
| clobberFlags: true, |
| typ: "Mem", |
| faultOnNilArg0: true, |
| unsafePoint: true, |
| }, |
| |
| // R31 is temp register |
| // Loop code: |
| // MOVD len/32,R31 set up loop ctr |
| // MOVD R31,CTR |
| // MOVD $16,R31 index register |
| // loop: |
| // LXVD2X (R0)(R4),VS32 |
| // LXVD2X (R31)(R4),VS33 |
| // ADD R4,$32 increment src |
| // STXVD2X VS32,(R0)(R3) |
| // STXVD2X VS33,(R31)(R3) |
| // ADD R3,$32 increment dst |
| // BC 16,0,loop branch ctr |
| // For this purpose, VS32 and VS33 are treated as |
| // scratch registers. Since regalloc does not |
| // track vector registers, even if it could be marked |
| // as clobbered it would have no effect. |
| // TODO: If vector registers are managed by regalloc |
| // mark these as clobbered. |
| // |
| // Bytes not moved by this loop are moved |
| // with a combination of the following instructions, |
| // starting with the largest sizes and generating as |
| // many as needed, using the appropriate offset value. |
| // MOVD n(R4),R14 |
| // MOVD R14,n(R3) |
| // MOVW n1(R4),R14 |
| // MOVW R14,n1(R3) |
| // MOVH n2(R4),R14 |
| // MOVH R14,n2(R3) |
| // MOVB n3(R4),R14 |
| // MOVB R14,n3(R3) |
| |
| { |
| name: "LoweredMove", |
| aux: "Int64", |
| argLength: 3, |
| reg: regInfo{ |
| inputs: []regMask{buildReg("R20"), buildReg("R21")}, |
| clobbers: buildReg("R20 R21"), |
| }, |
| clobberFlags: true, |
| typ: "Mem", |
| faultOnNilArg0: true, |
| faultOnNilArg1: true, |
| unsafePoint: true, |
| }, |
| { |
| name: "LoweredMoveShort", |
| aux: "Int64", |
| argLength: 3, |
| reg: regInfo{ |
| inputs: []regMask{gp, gp}, |
| }, |
| typ: "Mem", |
| faultOnNilArg0: true, |
| faultOnNilArg1: true, |
| unsafePoint: true, |
| }, |
| |
| // The following is similar to the LoweredMove, but uses |
| // LXV instead of LXVD2X, which does not require an index |
| // register and will do 4 in a loop instead of only. |
| { |
| name: "LoweredQuadMove", |
| aux: "Int64", |
| argLength: 3, |
| reg: regInfo{ |
| inputs: []regMask{buildReg("R20"), buildReg("R21")}, |
| clobbers: buildReg("R20 R21"), |
| }, |
| clobberFlags: true, |
| typ: "Mem", |
| faultOnNilArg0: true, |
| faultOnNilArg1: true, |
| unsafePoint: true, |
| }, |
| |
| { |
| name: "LoweredQuadMoveShort", |
| aux: "Int64", |
| argLength: 3, |
| reg: regInfo{ |
| inputs: []regMask{gp, gp}, |
| }, |
| typ: "Mem", |
| faultOnNilArg0: true, |
| faultOnNilArg1: true, |
| unsafePoint: true, |
| }, |
| |
| {name: "LoweredAtomicStore8", argLength: 3, reg: gpstore, typ: "Mem", aux: "Int64", faultOnNilArg0: true, hasSideEffects: true}, |
| {name: "LoweredAtomicStore32", argLength: 3, reg: gpstore, typ: "Mem", aux: "Int64", faultOnNilArg0: true, hasSideEffects: true}, |
| {name: "LoweredAtomicStore64", argLength: 3, reg: gpstore, typ: "Mem", aux: "Int64", faultOnNilArg0: true, hasSideEffects: true}, |
| |
| {name: "LoweredAtomicLoad8", argLength: 2, reg: gpload, typ: "UInt8", aux: "Int64", clobberFlags: true, faultOnNilArg0: true}, |
| {name: "LoweredAtomicLoad32", argLength: 2, reg: gpload, typ: "UInt32", aux: "Int64", clobberFlags: true, faultOnNilArg0: true}, |
| {name: "LoweredAtomicLoad64", argLength: 2, reg: gpload, typ: "Int64", aux: "Int64", clobberFlags: true, faultOnNilArg0: true}, |
| {name: "LoweredAtomicLoadPtr", argLength: 2, reg: gpload, typ: "Int64", aux: "Int64", clobberFlags: true, faultOnNilArg0: true}, |
| |
| // atomic add32, 64 |
| // LWSYNC |
| // LDAR (Rarg0), Rout |
| // ADD Rarg1, Rout |
| // STDCCC Rout, (Rarg0) |
| // BNE -3(PC) |
| // return new sum |
| {name: "LoweredAtomicAdd32", argLength: 3, reg: gpxchg, resultNotInArgs: true, clobberFlags: true, faultOnNilArg0: true, hasSideEffects: true}, |
| {name: "LoweredAtomicAdd64", argLength: 3, reg: gpxchg, resultNotInArgs: true, clobberFlags: true, faultOnNilArg0: true, hasSideEffects: true}, |
| |
| // atomic exchange32, 64 |
| // LWSYNC |
| // LDAR (Rarg0), Rout |
| // STDCCC Rarg1, (Rarg0) |
| // BNE -2(PC) |
| // ISYNC |
| // return old val |
| {name: "LoweredAtomicExchange32", argLength: 3, reg: gpxchg, resultNotInArgs: true, clobberFlags: true, faultOnNilArg0: true, hasSideEffects: true}, |
| {name: "LoweredAtomicExchange64", argLength: 3, reg: gpxchg, resultNotInArgs: true, clobberFlags: true, faultOnNilArg0: true, hasSideEffects: true}, |
| |
| // atomic compare and swap. |
| // arg0 = pointer, arg1 = old value, arg2 = new value, arg3 = memory. auxint must be zero. |
| // if *arg0 == arg1 { |
| // *arg0 = arg2 |
| // return (true, memory) |
| // } else { |
| // return (false, memory) |
| // } |
| // SYNC |
| // LDAR (Rarg0), Rtmp |
| // CMP Rarg1, Rtmp |
| // BNE 3(PC) |
| // STDCCC Rarg2, (Rarg0) |
| // BNE -4(PC) |
| // CBNZ Rtmp, -4(PC) |
| // CSET EQ, Rout |
| {name: "LoweredAtomicCas64", argLength: 4, reg: gpcas, resultNotInArgs: true, aux: "Int64", clobberFlags: true, faultOnNilArg0: true, hasSideEffects: true}, |
| {name: "LoweredAtomicCas32", argLength: 4, reg: gpcas, resultNotInArgs: true, aux: "Int64", clobberFlags: true, faultOnNilArg0: true, hasSideEffects: true}, |
| |
| // atomic 8/32 and/or. |
| // *arg0 &= (|=) arg1. arg2=mem. returns memory. auxint must be zero. |
| // LBAR/LWAT (Rarg0), Rtmp |
| // AND/OR Rarg1, Rtmp |
| // STBCCC/STWCCC Rtmp, (Rarg0), Rtmp |
| // BNE Rtmp, -3(PC) |
| {name: "LoweredAtomicAnd8", argLength: 3, reg: gpstore, asm: "AND", faultOnNilArg0: true, hasSideEffects: true}, |
| {name: "LoweredAtomicAnd32", argLength: 3, reg: gpstore, asm: "AND", faultOnNilArg0: true, hasSideEffects: true}, |
| {name: "LoweredAtomicOr8", argLength: 3, reg: gpstore, asm: "OR", faultOnNilArg0: true, hasSideEffects: true}, |
| {name: "LoweredAtomicOr32", argLength: 3, reg: gpstore, asm: "OR", faultOnNilArg0: true, hasSideEffects: true}, |
| |
| // LoweredWB invokes runtime.gcWriteBarrier. arg0=destptr, arg1=srcptr, arg2=mem, aux=runtime.gcWriteBarrier |
| // It preserves R0 through R17 (except special registers R1, R2, R11, R12, R13), g, and its arguments R20 and R21, |
| // but may clobber anything else, including R31 (REGTMP). |
| {name: "LoweredWB", argLength: 3, reg: regInfo{inputs: []regMask{buildReg("R20"), buildReg("R21")}, clobbers: (callerSave &^ buildReg("R0 R3 R4 R5 R6 R7 R8 R9 R10 R14 R15 R16 R17 R20 R21 g")) | buildReg("R31")}, clobberFlags: true, aux: "Sym", symEffect: "None"}, |
| |
| // There are three of these functions so that they can have three different register inputs. |
| // When we check 0 <= c <= cap (A), then 0 <= b <= c (B), then 0 <= a <= b (C), we want the |
| // default registers to match so we don't need to copy registers around unnecessarily. |
| {name: "LoweredPanicBoundsA", argLength: 3, aux: "Int64", reg: regInfo{inputs: []regMask{r5, r6}}, typ: "Mem", call: true}, // arg0=idx, arg1=len, arg2=mem, returns memory. AuxInt contains report code (see PanicBounds in genericOps.go). |
| {name: "LoweredPanicBoundsB", argLength: 3, aux: "Int64", reg: regInfo{inputs: []regMask{r4, r5}}, typ: "Mem", call: true}, // arg0=idx, arg1=len, arg2=mem, returns memory. AuxInt contains report code (see PanicBounds in genericOps.go). |
| {name: "LoweredPanicBoundsC", argLength: 3, aux: "Int64", reg: regInfo{inputs: []regMask{r3, r4}}, typ: "Mem", call: true}, // arg0=idx, arg1=len, arg2=mem, returns memory. AuxInt contains report code (see PanicBounds in genericOps.go). |
| |
| // (InvertFlags (CMP a b)) == (CMP b a) |
| // So if we want (LessThan (CMP a b)) but we can't do that because a is a constant, |
| // then we do (LessThan (InvertFlags (CMP b a))) instead. |
| // Rewrites will convert this to (GreaterThan (CMP b a)). |
| // InvertFlags is a pseudo-op which can't appear in assembly output. |
| {name: "InvertFlags", argLength: 1}, // reverse direction of arg0 |
| |
| // Constant flag values. For any comparison, there are 3 possible |
| // outcomes: either the three from the signed total order (<,==,>) |
| // or the three from the unsigned total order, depending on which |
| // comparison operation was used (CMP or CMPU -- PPC is different from |
| // the other architectures, which have a single comparison producing |
| // both signed and unsigned comparison results.) |
| |
| // These ops are for temporary use by rewrite rules. They |
| // cannot appear in the generated assembly. |
| {name: "FlagEQ"}, // equal |
| {name: "FlagLT"}, // signed < or unsigned < |
| {name: "FlagGT"}, // signed > or unsigned > |
| } |
| |
| blocks := []blockData{ |
| {name: "EQ", controls: 1}, |
| {name: "NE", controls: 1}, |
| {name: "LT", controls: 1}, |
| {name: "LE", controls: 1}, |
| {name: "GT", controls: 1}, |
| {name: "GE", controls: 1}, |
| {name: "FLT", controls: 1}, |
| {name: "FLE", controls: 1}, |
| {name: "FGT", controls: 1}, |
| {name: "FGE", controls: 1}, |
| } |
| |
| archs = append(archs, arch{ |
| name: "PPC64", |
| pkg: "cmd/internal/obj/ppc64", |
| genfile: "../../ppc64/ssa.go", |
| ops: ops, |
| blocks: blocks, |
| regnames: regNamesPPC64, |
| gpregmask: gp, |
| fpregmask: fp, |
| framepointerreg: int8(num["SP"]), |
| linkreg: -1, // not used |
| }) |
| } |
