// 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. //go:build ignore // +build ignore package main import ( "fmt" ) // Notes: // - Boolean types occupy the entire register. 0=false, 1=true. // Suffixes encode the bit width of various instructions: // // D (double word) = 64 bit int // W (word) = 32 bit int // H (half word) = 16 bit int // B (byte) = 8 bit int // S (single) = 32 bit float // D (double) = 64 bit float // L = 64 bit int, used when the opcode starts with F const ( riscv64REG_G = 27 riscv64REG_CTXT = 20 riscv64REG_LR = 1 riscv64REG_SP = 2 riscv64REG_GP = 3 riscv64REG_TP = 4 riscv64REG_TMP = 31 riscv64REG_ZERO = 0 ) func riscv64RegName(r int) string { switch { case r == riscv64REG_G: return "g" case r == riscv64REG_SP: return "SP" case 0 <= r && r <= 31: return fmt.Sprintf("X%d", r) case 32 <= r && r <= 63: return fmt.Sprintf("F%d", r-32) default: panic(fmt.Sprintf("unknown register %d", r)) } } func init() { var regNamesRISCV64 []string var gpMask, fpMask, gpgMask, gpspMask, gpspsbMask, gpspsbgMask regMask regNamed := make(map[string]regMask) // Build the list of register names, creating an appropriately indexed // regMask for the gp and fp registers as we go. // // If name is specified, use it rather than the riscv reg number. addreg := func(r int, name string) regMask { mask := regMask(1) << uint(len(regNamesRISCV64)) if name == "" { name = riscv64RegName(r) } regNamesRISCV64 = append(regNamesRISCV64, name) regNamed[name] = mask return mask } // General purpose registers. for r := 0; r <= 31; r++ { if r == riscv64REG_LR { // LR is not used by regalloc, so we skip it to leave // room for pseudo-register SB. continue } mask := addreg(r, "") // Add general purpose registers to gpMask. switch r { // ZERO, GP, TP and TMP are not in any gp mask. case riscv64REG_ZERO, riscv64REG_GP, riscv64REG_TP, riscv64REG_TMP: case riscv64REG_G: gpgMask |= mask gpspsbgMask |= mask case riscv64REG_SP: gpspMask |= mask gpspsbMask |= mask gpspsbgMask |= mask default: gpMask |= mask gpgMask |= mask gpspMask |= mask gpspsbMask |= mask gpspsbgMask |= mask } } // Floating pointer registers. for r := 32; r <= 63; r++ { mask := addreg(r, "") fpMask |= mask } // Pseudo-register: SB mask := addreg(-1, "SB") gpspsbMask |= mask gpspsbgMask |= mask if len(regNamesRISCV64) > 64 { // regMask is only 64 bits. panic("Too many RISCV64 registers") } regCtxt := regNamed["X20"] callerSave := gpMask | fpMask | regNamed["g"] var ( gpstore = regInfo{inputs: []regMask{gpspsbMask, gpspMask, 0}} // SB in first input so we can load from a global, but not in second to avoid using SB as a temporary register gpstore0 = regInfo{inputs: []regMask{gpspsbMask}} gp01 = regInfo{outputs: []regMask{gpMask}} gp11 = regInfo{inputs: []regMask{gpMask}, outputs: []regMask{gpMask}} gp21 = regInfo{inputs: []regMask{gpMask, gpMask}, outputs: []regMask{gpMask}} gp22 = regInfo{inputs: []regMask{gpMask, gpMask}, outputs: []regMask{gpMask, gpMask}} gpload = regInfo{inputs: []regMask{gpspsbMask, 0}, outputs: []regMask{gpMask}} gp11sb = regInfo{inputs: []regMask{gpspsbMask}, outputs: []regMask{gpMask}} gpxchg = regInfo{inputs: []regMask{gpspsbgMask, gpgMask}, outputs: []regMask{gpMask}} gpcas = regInfo{inputs: []regMask{gpspsbgMask, gpgMask, gpgMask}, outputs: []regMask{gpMask}} gpatomic = regInfo{inputs: []regMask{gpspsbgMask, gpgMask}} fp11 = regInfo{inputs: []regMask{fpMask}, outputs: []regMask{fpMask}} fp21 = regInfo{inputs: []regMask{fpMask, fpMask}, outputs: []regMask{fpMask}} fp31 = regInfo{inputs: []regMask{fpMask, fpMask, fpMask}, outputs: []regMask{fpMask}} gpfp = regInfo{inputs: []regMask{gpMask}, outputs: []regMask{fpMask}} fpgp = regInfo{inputs: []regMask{fpMask}, outputs: []regMask{gpMask}} fpstore = regInfo{inputs: []regMask{gpspsbMask, fpMask, 0}} fpload = regInfo{inputs: []regMask{gpspsbMask, 0}, outputs: []regMask{fpMask}} fp2gp = regInfo{inputs: []regMask{fpMask, fpMask}, outputs: []regMask{gpMask}} call = regInfo{clobbers: callerSave} callClosure = regInfo{inputs: []regMask{gpspMask, regCtxt, 0}, clobbers: callerSave} callInter = regInfo{inputs: []regMask{gpMask}, clobbers: callerSave} ) RISCV64ops := []opData{ {name: "ADD", argLength: 2, reg: gp21, asm: "ADD", commutative: true}, // arg0 + arg1 {name: "ADDI", argLength: 1, reg: gp11sb, asm: "ADDI", aux: "Int64"}, // arg0 + auxint {name: "ADDIW", argLength: 1, reg: gp11, asm: "ADDIW", aux: "Int64"}, // 32 low bits of arg0 + auxint, sign extended to 64 bits {name: "NEG", argLength: 1, reg: gp11, asm: "NEG"}, // -arg0 {name: "NEGW", argLength: 1, reg: gp11, asm: "NEGW"}, // -arg0 of 32 bits, sign extended to 64 bits {name: "SUB", argLength: 2, reg: gp21, asm: "SUB"}, // arg0 - arg1 {name: "SUBW", argLength: 2, reg: gp21, asm: "SUBW"}, // 32 low bits of arg 0 - 32 low bits of arg 1, sign extended to 64 bits // M extension. H means high (i.e., it returns the top bits of // the result). U means unsigned. W means word (i.e., 32-bit). {name: "MUL", argLength: 2, reg: gp21, asm: "MUL", commutative: true, typ: "Int64"}, // arg0 * arg1 {name: "MULW", argLength: 2, reg: gp21, asm: "MULW", commutative: true, typ: "Int32"}, {name: "MULH", argLength: 2, reg: gp21, asm: "MULH", commutative: true, typ: "Int64"}, {name: "MULHU", argLength: 2, reg: gp21, asm: "MULHU", commutative: true, typ: "UInt64"}, {name: "LoweredMuluhilo", argLength: 2, reg: gp22, resultNotInArgs: true}, // arg0 * arg1, return (hi, lo) {name: "LoweredMuluover", argLength: 2, reg: gp22, resultNotInArgs: true}, // arg0 * arg1, return (64 bits of arg0*arg1, overflow) {name: "DIV", argLength: 2, reg: gp21, asm: "DIV", typ: "Int64"}, // arg0 / arg1 {name: "DIVU", argLength: 2, reg: gp21, asm: "DIVU", typ: "UInt64"}, {name: "DIVW", argLength: 2, reg: gp21, asm: "DIVW", typ: "Int32"}, {name: "DIVUW", argLength: 2, reg: gp21, asm: "DIVUW", typ: "UInt32"}, {name: "REM", argLength: 2, reg: gp21, asm: "REM", typ: "Int64"}, // arg0 % arg1 {name: "REMU", argLength: 2, reg: gp21, asm: "REMU", typ: "UInt64"}, {name: "REMW", argLength: 2, reg: gp21, asm: "REMW", typ: "Int32"}, {name: "REMUW", argLength: 2, reg: gp21, asm: "REMUW", typ: "UInt32"}, {name: "MOVaddr", argLength: 1, reg: gp11sb, asm: "MOV", aux: "SymOff", rematerializeable: true, symEffect: "RdWr"}, // arg0 + auxint + offset encoded in aux // auxint+aux == add auxint and the offset of the symbol in aux (if any) to the effective address {name: "MOVDconst", reg: gp01, asm: "MOV", typ: "UInt64", aux: "Int64", rematerializeable: true}, // auxint // Loads: load bits from arg0+auxint+aux and extend to 64 bits; arg1=mem {name: "MOVBload", argLength: 2, reg: gpload, asm: "MOVB", aux: "SymOff", typ: "Int8", faultOnNilArg0: true, symEffect: "Read"}, // 8 bits, sign extend {name: "MOVHload", argLength: 2, reg: gpload, asm: "MOVH", aux: "SymOff", typ: "Int16", faultOnNilArg0: true, symEffect: "Read"}, // 16 bits, sign extend {name: "MOVWload", argLength: 2, reg: gpload, asm: "MOVW", aux: "SymOff", typ: "Int32", faultOnNilArg0: true, symEffect: "Read"}, // 32 bits, sign extend {name: "MOVDload", argLength: 2, reg: gpload, asm: "MOV", aux: "SymOff", typ: "Int64", faultOnNilArg0: true, symEffect: "Read"}, // 64 bits {name: "MOVBUload", argLength: 2, reg: gpload, asm: "MOVBU", aux: "SymOff", typ: "UInt8", faultOnNilArg0: true, symEffect: "Read"}, // 8 bits, zero extend {name: "MOVHUload", argLength: 2, reg: gpload, asm: "MOVHU", aux: "SymOff", typ: "UInt16", faultOnNilArg0: true, symEffect: "Read"}, // 16 bits, zero extend {name: "MOVWUload", argLength: 2, reg: gpload, asm: "MOVWU", aux: "SymOff", typ: "UInt32", faultOnNilArg0: true, symEffect: "Read"}, // 32 bits, zero extend // Stores: store lowest bits in arg1 to arg0+auxint+aux; arg2=mem {name: "MOVBstore", argLength: 3, reg: gpstore, asm: "MOVB", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // 8 bits {name: "MOVHstore", argLength: 3, reg: gpstore, asm: "MOVH", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // 16 bits {name: "MOVWstore", argLength: 3, reg: gpstore, asm: "MOVW", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // 32 bits {name: "MOVDstore", argLength: 3, reg: gpstore, asm: "MOV", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // 64 bits // Stores: store of zero in arg0+auxint+aux; arg1=mem {name: "MOVBstorezero", argLength: 2, reg: gpstore0, aux: "SymOff", asm: "MOVB", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // 8 bits {name: "MOVHstorezero", argLength: 2, reg: gpstore0, aux: "SymOff", asm: "MOVH", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // 16 bits {name: "MOVWstorezero", argLength: 2, reg: gpstore0, aux: "SymOff", asm: "MOVW", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // 32 bits {name: "MOVDstorezero", argLength: 2, reg: gpstore0, aux: "SymOff", asm: "MOV", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // 64 bits // Conversions {name: "MOVBreg", argLength: 1, reg: gp11, asm: "MOVB"}, // move from arg0, sign-extended from byte {name: "MOVHreg", argLength: 1, reg: gp11, asm: "MOVH"}, // move from arg0, sign-extended from half {name: "MOVWreg", argLength: 1, reg: gp11, asm: "MOVW"}, // move from arg0, sign-extended from word {name: "MOVDreg", argLength: 1, reg: gp11, asm: "MOV"}, // move from arg0 {name: "MOVBUreg", argLength: 1, reg: gp11, asm: "MOVBU"}, // move from arg0, unsign-extended from byte {name: "MOVHUreg", argLength: 1, reg: gp11, asm: "MOVHU"}, // move from arg0, unsign-extended from half {name: "MOVWUreg", argLength: 1, reg: gp11, asm: "MOVWU"}, // move from arg0, unsign-extended from word {name: "MOVDnop", argLength: 1, reg: regInfo{inputs: []regMask{gpMask}, outputs: []regMask{gpMask}}, resultInArg0: true}, // nop, return arg0 in same register // Shift ops {name: "SLL", argLength: 2, reg: gp21, asm: "SLL"}, // arg0 << (aux1 & 63) {name: "SRA", argLength: 2, reg: gp21, asm: "SRA"}, // arg0 >> (aux1 & 63), signed {name: "SRL", argLength: 2, reg: gp21, asm: "SRL"}, // arg0 >> (aux1 & 63), unsigned {name: "SLLI", argLength: 1, reg: gp11, asm: "SLLI", aux: "Int64"}, // arg0 << auxint, shift amount 0-63 {name: "SRAI", argLength: 1, reg: gp11, asm: "SRAI", aux: "Int64"}, // arg0 >> auxint, signed, shift amount 0-63 {name: "SRLI", argLength: 1, reg: gp11, asm: "SRLI", aux: "Int64"}, // arg0 >> auxint, unsigned, shift amount 0-63 // Bitwise ops {name: "XOR", argLength: 2, reg: gp21, asm: "XOR", commutative: true}, // arg0 ^ arg1 {name: "XORI", argLength: 1, reg: gp11, asm: "XORI", aux: "Int64"}, // arg0 ^ auxint {name: "OR", argLength: 2, reg: gp21, asm: "OR", commutative: true}, // arg0 | arg1 {name: "ORI", argLength: 1, reg: gp11, asm: "ORI", aux: "Int64"}, // arg0 | auxint {name: "AND", argLength: 2, reg: gp21, asm: "AND", commutative: true}, // arg0 & arg1 {name: "ANDI", argLength: 1, reg: gp11, asm: "ANDI", aux: "Int64"}, // arg0 & auxint {name: "NOT", argLength: 1, reg: gp11, asm: "NOT"}, // ^arg0 // Generate boolean values {name: "SEQZ", argLength: 1, reg: gp11, asm: "SEQZ"}, // arg0 == 0, result is 0 or 1 {name: "SNEZ", argLength: 1, reg: gp11, asm: "SNEZ"}, // arg0 != 0, result is 0 or 1 {name: "SLT", argLength: 2, reg: gp21, asm: "SLT"}, // arg0 < arg1, result is 0 or 1 {name: "SLTI", argLength: 1, reg: gp11, asm: "SLTI", aux: "Int64"}, // arg0 < auxint, result is 0 or 1 {name: "SLTU", argLength: 2, reg: gp21, asm: "SLTU"}, // arg0 < arg1, unsigned, result is 0 or 1 {name: "SLTIU", argLength: 1, reg: gp11, asm: "SLTIU", aux: "Int64"}, // arg0 < auxint, unsigned, result is 0 or 1 // MOVconvert converts between pointers and integers. // We have a special op for this so as to not confuse GC // (particularly stack maps). It takes a memory arg so it // gets correctly ordered with respect to GC safepoints. {name: "MOVconvert", argLength: 2, reg: gp11, asm: "MOV"}, // arg0, but converted to int/ptr as appropriate; arg1=mem // Calls {name: "CALLstatic", argLength: 1, reg: call, aux: "CallOff", call: true}, // call static function aux.(*gc.Sym). arg0=mem, auxint=argsize, returns mem {name: "CALLtail", argLength: 1, reg: call, aux: "CallOff", call: true, tailCall: true}, // tail call static function aux.(*gc.Sym). arg0=mem, auxint=argsize, returns mem {name: "CALLclosure", argLength: 3, reg: callClosure, aux: "CallOff", call: true}, // call function via closure. arg0=codeptr, arg1=closure, arg2=mem, auxint=argsize, returns mem {name: "CALLinter", argLength: 2, reg: callInter, aux: "CallOff", call: true}, // call fn by pointer. arg0=codeptr, arg1=mem, auxint=argsize, returns mem // duffzero // arg0 = address of memory to zero (in X10, changed as side effect) // arg1 = mem // auxint = offset into duffzero code to start executing // X1 (link register) changed because of function call // returns mem { name: "DUFFZERO", aux: "Int64", argLength: 2, reg: regInfo{ inputs: []regMask{regNamed["X10"]}, clobbers: regNamed["X1"] | regNamed["X10"], }, typ: "Mem", faultOnNilArg0: true, }, // duffcopy // arg0 = address of dst memory (in X11, changed as side effect) // arg1 = address of src memory (in X10, changed as side effect) // arg2 = mem // auxint = offset into duffcopy code to start executing // X1 (link register) changed because of function call // returns mem { name: "DUFFCOPY", aux: "Int64", argLength: 3, reg: regInfo{ inputs: []regMask{regNamed["X11"], regNamed["X10"]}, clobbers: regNamed["X1"] | regNamed["X10"] | regNamed["X11"], }, typ: "Mem", faultOnNilArg0: true, faultOnNilArg1: true, }, // Generic moves and zeros // general unaligned zeroing // arg0 = address of memory to zero (in X5, changed as side effect) // arg1 = address of the last element to zero (inclusive) // arg2 = mem // auxint = element size // returns mem // mov ZERO, (X5) // ADD $sz, X5 // BGEU Rarg1, X5, -2(PC) { name: "LoweredZero", aux: "Int64", argLength: 3, reg: regInfo{ inputs: []regMask{regNamed["X5"], gpMask}, clobbers: regNamed["X5"], }, typ: "Mem", faultOnNilArg0: true, }, // general unaligned move // arg0 = address of dst memory (in X5, changed as side effect) // arg1 = address of src memory (in X6, changed as side effect) // arg2 = address of the last element of src (can't be X7 as we clobber it before using arg2) // arg3 = mem // auxint = alignment // clobbers X7 as a tmp register. // returns mem // mov (X6), X7 // mov X7, (X5) // ADD $sz, X5 // ADD $sz, X6 // BGEU Rarg2, X5, -4(PC) { name: "LoweredMove", aux: "Int64", argLength: 4, reg: regInfo{ inputs: []regMask{regNamed["X5"], regNamed["X6"], gpMask &^ regNamed["X7"]}, clobbers: regNamed["X5"] | regNamed["X6"] | regNamed["X7"], }, typ: "Mem", faultOnNilArg0: true, faultOnNilArg1: true, }, // Atomic loads. // load from arg0. arg1=mem. // returns so they can be properly ordered with other loads. {name: "LoweredAtomicLoad8", argLength: 2, reg: gpload, faultOnNilArg0: true}, {name: "LoweredAtomicLoad32", argLength: 2, reg: gpload, faultOnNilArg0: true}, {name: "LoweredAtomicLoad64", argLength: 2, reg: gpload, faultOnNilArg0: true}, // Atomic stores. // store arg1 to *arg0. arg2=mem. returns memory. {name: "LoweredAtomicStore8", argLength: 3, reg: gpstore, faultOnNilArg0: true, hasSideEffects: true}, {name: "LoweredAtomicStore32", argLength: 3, reg: gpstore, faultOnNilArg0: true, hasSideEffects: true}, {name: "LoweredAtomicStore64", argLength: 3, reg: gpstore, faultOnNilArg0: true, hasSideEffects: true}, // Atomic exchange. // store arg1 to *arg0. arg2=mem. returns . {name: "LoweredAtomicExchange32", argLength: 3, reg: gpxchg, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true}, {name: "LoweredAtomicExchange64", argLength: 3, reg: gpxchg, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true}, // Atomic add. // *arg0 += arg1. arg2=mem. returns . {name: "LoweredAtomicAdd32", argLength: 3, reg: gpxchg, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, {name: "LoweredAtomicAdd64", argLength: 3, reg: gpxchg, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, // Atomic compare and swap. // arg0 = pointer, arg1 = old value, arg2 = new value, arg3 = memory. // if *arg0 == arg1 { // *arg0 = arg2 // return (true, memory) // } else { // return (false, memory) // } // MOV $0, Rout // LR (Rarg0), Rtmp // BNE Rtmp, Rarg1, 3(PC) // SC Rarg2, (Rarg0), Rtmp // BNE Rtmp, ZERO, -3(PC) // MOV $1, Rout {name: "LoweredAtomicCas32", argLength: 4, reg: gpcas, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, {name: "LoweredAtomicCas64", argLength: 4, reg: gpcas, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, // Atomic 32 bit AND/OR. // *arg0 &= (|=) arg1. arg2=mem. returns nil. {name: "LoweredAtomicAnd32", argLength: 3, reg: gpatomic, asm: "AMOANDW", faultOnNilArg0: true, hasSideEffects: true}, {name: "LoweredAtomicOr32", argLength: 3, reg: gpatomic, asm: "AMOORW", faultOnNilArg0: true, hasSideEffects: true}, // Lowering pass-throughs {name: "LoweredNilCheck", argLength: 2, faultOnNilArg0: true, nilCheck: true, reg: regInfo{inputs: []regMask{gpspMask}}}, // arg0=ptr,arg1=mem, returns void. Faults if ptr is nil. {name: "LoweredGetClosurePtr", reg: regInfo{outputs: []regMask{regCtxt}}}, // scheduler ensures only at beginning of entry block // 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}, // LoweredWB invokes runtime.gcWriteBarrier. arg0=destptr, arg1=srcptr, arg2=mem, aux=runtime.gcWriteBarrier // It saves all GP registers if necessary, // but clobbers RA (LR) because it's a call // and T6 (REG_TMP). {name: "LoweredWB", argLength: 3, reg: regInfo{inputs: []regMask{regNamed["X5"], regNamed["X6"]}, clobbers: (callerSave &^ (gpMask | regNamed["g"])) | regNamed["X1"]}, 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{regNamed["X7"], regNamed["X28"]}}, 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{regNamed["X6"], regNamed["X7"]}}, 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{regNamed["X5"], regNamed["X6"]}}, typ: "Mem", call: true}, // arg0=idx, arg1=len, arg2=mem, returns memory. AuxInt contains report code (see PanicBounds in genericOps.go). // F extension. {name: "FADDS", argLength: 2, reg: fp21, asm: "FADDS", commutative: true, typ: "Float32"}, // arg0 + arg1 {name: "FSUBS", argLength: 2, reg: fp21, asm: "FSUBS", commutative: false, typ: "Float32"}, // arg0 - arg1 {name: "FMULS", argLength: 2, reg: fp21, asm: "FMULS", commutative: true, typ: "Float32"}, // arg0 * arg1 {name: "FDIVS", argLength: 2, reg: fp21, asm: "FDIVS", commutative: false, typ: "Float32"}, // arg0 / arg1 {name: "FSQRTS", argLength: 1, reg: fp11, asm: "FSQRTS", typ: "Float32"}, // sqrt(arg0) {name: "FNEGS", argLength: 1, reg: fp11, asm: "FNEGS", typ: "Float32"}, // -arg0 {name: "FMVSX", argLength: 1, reg: gpfp, asm: "FMVSX", typ: "Float32"}, // reinterpret arg0 as float {name: "FCVTSW", argLength: 1, reg: gpfp, asm: "FCVTSW", typ: "Float32"}, // float32(low 32 bits of arg0) {name: "FCVTSL", argLength: 1, reg: gpfp, asm: "FCVTSL", typ: "Float32"}, // float32(arg0) {name: "FCVTWS", argLength: 1, reg: fpgp, asm: "FCVTWS", typ: "Int32"}, // int32(arg0) {name: "FCVTLS", argLength: 1, reg: fpgp, asm: "FCVTLS", typ: "Int64"}, // int64(arg0) {name: "FMOVWload", argLength: 2, reg: fpload, asm: "MOVF", aux: "SymOff", typ: "Float32", faultOnNilArg0: true, symEffect: "Read"}, // load float32 from arg0+auxint+aux {name: "FMOVWstore", argLength: 3, reg: fpstore, asm: "MOVF", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store float32 to arg0+auxint+aux {name: "FEQS", argLength: 2, reg: fp2gp, asm: "FEQS", commutative: true}, // arg0 == arg1 {name: "FNES", argLength: 2, reg: fp2gp, asm: "FNES", commutative: true}, // arg0 != arg1 {name: "FLTS", argLength: 2, reg: fp2gp, asm: "FLTS"}, // arg0 < arg1 {name: "FLES", argLength: 2, reg: fp2gp, asm: "FLES"}, // arg0 <= arg1 // D extension. {name: "FADDD", argLength: 2, reg: fp21, asm: "FADDD", commutative: true, typ: "Float64"}, // arg0 + arg1 {name: "FSUBD", argLength: 2, reg: fp21, asm: "FSUBD", commutative: false, typ: "Float64"}, // arg0 - arg1 {name: "FMULD", argLength: 2, reg: fp21, asm: "FMULD", commutative: true, typ: "Float64"}, // arg0 * arg1 {name: "FDIVD", argLength: 2, reg: fp21, asm: "FDIVD", commutative: false, typ: "Float64"}, // arg0 / arg1 {name: "FMADDD", argLength: 3, reg: fp31, asm: "FMADDD", commutative: true, typ: "Float64"}, // (arg0 * arg1) + arg2 {name: "FMSUBD", argLength: 3, reg: fp31, asm: "FMSUBD", commutative: true, typ: "Float64"}, // (arg0 * arg1) - arg2 {name: "FNMADDD", argLength: 3, reg: fp31, asm: "FNMADDD", commutative: true, typ: "Float64"}, // -(arg0 * arg1) + arg2 {name: "FNMSUBD", argLength: 3, reg: fp31, asm: "FNMSUBD", commutative: true, typ: "Float64"}, // -(arg0 * arg1) - arg2 {name: "FSQRTD", argLength: 1, reg: fp11, asm: "FSQRTD", typ: "Float64"}, // sqrt(arg0) {name: "FNEGD", argLength: 1, reg: fp11, asm: "FNEGD", typ: "Float64"}, // -arg0 {name: "FABSD", argLength: 1, reg: fp11, asm: "FABSD", typ: "Float64"}, // abs(arg0) {name: "FSGNJD", argLength: 2, reg: fp21, asm: "FSGNJD", typ: "Float64"}, // copy sign of arg1 to arg0 {name: "FMVDX", argLength: 1, reg: gpfp, asm: "FMVDX", typ: "Float64"}, // reinterpret arg0 as float {name: "FCVTDW", argLength: 1, reg: gpfp, asm: "FCVTDW", typ: "Float64"}, // float64(low 32 bits of arg0) {name: "FCVTDL", argLength: 1, reg: gpfp, asm: "FCVTDL", typ: "Float64"}, // float64(arg0) {name: "FCVTWD", argLength: 1, reg: fpgp, asm: "FCVTWD", typ: "Int32"}, // int32(arg0) {name: "FCVTLD", argLength: 1, reg: fpgp, asm: "FCVTLD", typ: "Int64"}, // int64(arg0) {name: "FCVTDS", argLength: 1, reg: fp11, asm: "FCVTDS", typ: "Float64"}, // float64(arg0) {name: "FCVTSD", argLength: 1, reg: fp11, asm: "FCVTSD", typ: "Float32"}, // float32(arg0) {name: "FMOVDload", argLength: 2, reg: fpload, asm: "MOVD", aux: "SymOff", typ: "Float64", faultOnNilArg0: true, symEffect: "Read"}, // load float64 from arg0+auxint+aux {name: "FMOVDstore", argLength: 3, reg: fpstore, asm: "MOVD", aux: "SymOff", typ: "Mem", faultOnNilArg0: true, symEffect: "Write"}, // store float6 to arg0+auxint+aux {name: "FEQD", argLength: 2, reg: fp2gp, asm: "FEQD", commutative: true}, // arg0 == arg1 {name: "FNED", argLength: 2, reg: fp2gp, asm: "FNED", commutative: true}, // arg0 != arg1 {name: "FLTD", argLength: 2, reg: fp2gp, asm: "FLTD"}, // arg0 < arg1 {name: "FLED", argLength: 2, reg: fp2gp, asm: "FLED"}, // arg0 <= arg1 } RISCV64blocks := []blockData{ {name: "BEQ", controls: 2}, {name: "BNE", controls: 2}, {name: "BLT", controls: 2}, {name: "BGE", controls: 2}, {name: "BLTU", controls: 2}, {name: "BGEU", controls: 2}, {name: "BEQZ", controls: 1}, {name: "BNEZ", controls: 1}, {name: "BLEZ", controls: 1}, {name: "BGEZ", controls: 1}, {name: "BLTZ", controls: 1}, {name: "BGTZ", controls: 1}, } archs = append(archs, arch{ name: "RISCV64", pkg: "cmd/internal/obj/riscv", genfile: "../../riscv64/ssa.go", ops: RISCV64ops, blocks: RISCV64blocks, regnames: regNamesRISCV64, gpregmask: gpMask, fpregmask: fpMask, framepointerreg: -1, // not used }) }