From: Meng Zhuo Date: Wed, 3 Sep 2025 08:43:54 +0000 (+0800) Subject: runtime: remove duff support for riscv64 X-Git-Tag: go1.26rc1~918 X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=b9a4a09b0fbb54b533f847c784c807db95f68d3b;p=gostls13.git runtime: remove duff support for riscv64 Change-Id: I987d9f49fbd2650eef4224f72271bf752c54d39c Reviewed-on: https://go-review.googlesource.com/c/go/+/700538 Reviewed-by: Mark Freeman Reviewed-by: Keith Randall Reviewed-by: Keith Randall LUCI-TryBot-Result: Go LUCI Reviewed-by: Mark Ryan --- diff --git a/src/cmd/compile/internal/riscv64/ssa.go b/src/cmd/compile/internal/riscv64/ssa.go index 43a1ec4b61..61de983bb0 100644 --- a/src/cmd/compile/internal/riscv64/ssa.go +++ b/src/cmd/compile/internal/riscv64/ssa.go @@ -949,20 +949,6 @@ func ssaGenValue(s *ssagen.State, v *ssa.Value) { p.To.Type = obj.TYPE_REG p.To.Reg = v.Reg() - case ssa.OpRISCV64DUFFZERO: - p := s.Prog(obj.ADUFFZERO) - p.To.Type = obj.TYPE_MEM - p.To.Name = obj.NAME_EXTERN - p.To.Sym = ir.Syms.Duffzero - p.To.Offset = v.AuxInt - - case ssa.OpRISCV64DUFFCOPY: - p := s.Prog(obj.ADUFFCOPY) - p.To.Type = obj.TYPE_MEM - p.To.Name = obj.NAME_EXTERN - p.To.Sym = ir.Syms.Duffcopy - p.To.Offset = v.AuxInt - case ssa.OpRISCV64LoweredPubBarrier: // FENCE s.Prog(v.Op.Asm()) diff --git a/src/cmd/compile/internal/ssa/_gen/RISCV64Ops.go b/src/cmd/compile/internal/ssa/_gen/RISCV64Ops.go index 6507a22708..dc433ff974 100644 --- a/src/cmd/compile/internal/ssa/_gen/RISCV64Ops.go +++ b/src/cmd/compile/internal/ssa/_gen/RISCV64Ops.go @@ -278,44 +278,6 @@ func init() { {name: "CALLclosure", argLength: -1, reg: callClosure, aux: "CallOff", call: true}, // call function via closure. arg0=codeptr, arg1=closure, last arg=mem, auxint=argsize, returns mem {name: "CALLinter", argLength: -1, reg: callInter, aux: "CallOff", call: true}, // call fn by pointer. arg0=codeptr, last arg=mem, auxint=argsize, returns mem - // duffzero - // arg0 = address of memory to zero (in X25, 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["X25"]}, - clobbers: regNamed["X1"] | regNamed["X25"], - }, - typ: "Mem", - faultOnNilArg0: true, - }, - - // duffcopy - // arg0 = address of dst memory (in X25, changed as side effect) - // arg1 = address of src memory (in X24, 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["X25"], regNamed["X24"]}, - clobbers: regNamed["X1"] | regNamed["X24"] | regNamed["X25"], - }, - typ: "Mem", - faultOnNilArg0: true, - faultOnNilArg1: true, - }, - // Generic moves and zeros // general unrolled zeroing diff --git a/src/cmd/compile/internal/ssa/opGen.go b/src/cmd/compile/internal/ssa/opGen.go index 592e99f327..b4aae50b89 100644 --- a/src/cmd/compile/internal/ssa/opGen.go +++ b/src/cmd/compile/internal/ssa/opGen.go @@ -2566,8 +2566,6 @@ const ( OpRISCV64CALLtail OpRISCV64CALLclosure OpRISCV64CALLinter - OpRISCV64DUFFZERO - OpRISCV64DUFFCOPY OpRISCV64LoweredZero OpRISCV64LoweredZeroLoop OpRISCV64LoweredMove @@ -34532,32 +34530,6 @@ var opcodeTable = [...]opInfo{ clobbers: 9223372035781033968, // X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16 X17 X18 X19 X20 X21 X22 X23 X24 X25 X26 g X28 X29 X30 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 }, }, - { - name: "DUFFZERO", - auxType: auxInt64, - argLen: 2, - faultOnNilArg0: true, - reg: regInfo{ - inputs: []inputInfo{ - {0, 16777216}, // X25 - }, - clobbers: 16777216, // X25 - }, - }, - { - name: "DUFFCOPY", - auxType: auxInt64, - argLen: 3, - faultOnNilArg0: true, - faultOnNilArg1: true, - reg: regInfo{ - inputs: []inputInfo{ - {0, 16777216}, // X25 - {1, 8388608}, // X24 - }, - clobbers: 25165824, // X24 X25 - }, - }, { name: "LoweredZero", auxType: auxSymValAndOff, diff --git a/src/cmd/internal/obj/riscv/obj.go b/src/cmd/internal/obj/riscv/obj.go index 44edb8d841..40f143be5c 100644 --- a/src/cmd/internal/obj/riscv/obj.go +++ b/src/cmd/internal/obj/riscv/obj.go @@ -37,7 +37,7 @@ func buildop(ctxt *obj.Link) {} func jalToSym(ctxt *obj.Link, p *obj.Prog, lr int16) { switch p.As { - case obj.ACALL, obj.AJMP, obj.ARET, obj.ADUFFZERO, obj.ADUFFCOPY: + case obj.ACALL, obj.AJMP, obj.ARET: default: ctxt.Diag("unexpected Prog in jalToSym: %v", p) return @@ -162,42 +162,6 @@ func progedit(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) { // Rewrite p, if necessary, to access global data via the global offset table. func rewriteToUseGot(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) { - if p.As == obj.ADUFFCOPY || p.As == obj.ADUFFZERO { - // ADUFFxxx $offset - // becomes - // MOV runtime.duffxxx@GOT, REG_TMP - // ADD $offset, REG_TMP - // CALL REG_TMP - var sym *obj.LSym - if p.As == obj.ADUFFCOPY { - sym = ctxt.LookupABI("runtime.duffcopy", obj.ABIInternal) - } else { - sym = ctxt.LookupABI("runtime.duffzero", obj.ABIInternal) - } - offset := p.To.Offset - p.As = AMOV - p.From.Type = obj.TYPE_MEM - p.From.Name = obj.NAME_GOTREF - p.From.Sym = sym - p.To.Type = obj.TYPE_REG - p.To.Reg = REG_TMP - p.To.Name = obj.NAME_NONE - p.To.Offset = 0 - p.To.Sym = nil - - p1 := obj.Appendp(p, newprog) - p1.As = AADD - p1.From.Type = obj.TYPE_CONST - p1.From.Offset = offset - p1.To.Type = obj.TYPE_REG - p1.To.Reg = REG_TMP - - p2 := obj.Appendp(p1, newprog) - p2.As = obj.ACALL - p2.To.Type = obj.TYPE_REG - p2.To.Reg = REG_TMP - } - // We only care about global data: NAME_EXTERN means a global // symbol in the Go sense and p.Sym.Local is true for a few internally // defined symbols. @@ -407,7 +371,7 @@ func containsCall(sym *obj.LSym) bool { // CALLs are CALL or JAL(R) with link register LR. for p := sym.Func().Text; p != nil; p = p.Link { switch p.As { - case obj.ACALL, obj.ADUFFZERO, obj.ADUFFCOPY: + case obj.ACALL: return true case AJAL, AJALR: if p.From.Type == obj.TYPE_REG && p.From.Reg == REG_LR { @@ -586,7 +550,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) { p.From.Reg = REG_SP } - case obj.ACALL, obj.ADUFFZERO, obj.ADUFFCOPY: + case obj.ACALL: switch p.To.Type { case obj.TYPE_MEM: jalToSym(ctxt, p, REG_LR) @@ -2634,8 +2598,6 @@ var instructions = [ALAST & obj.AMask]instructionData{ obj.APCDATA: {enc: pseudoOpEncoding}, obj.ATEXT: {enc: pseudoOpEncoding}, obj.ANOP: {enc: pseudoOpEncoding}, - obj.ADUFFZERO: {enc: pseudoOpEncoding}, - obj.ADUFFCOPY: {enc: pseudoOpEncoding}, obj.APCALIGN: {enc: pseudoOpEncoding}, } diff --git a/src/runtime/duff_riscv64.s b/src/runtime/duff_riscv64.s deleted file mode 100644 index ec447677ad..0000000000 --- a/src/runtime/duff_riscv64.s +++ /dev/null @@ -1,907 +0,0 @@ -// Code generated by mkduff.go; DO NOT EDIT. -// Run go generate from src/runtime to update. -// See mkduff.go for comments. - -#include "textflag.h" - -TEXT runtime·duffzero(SB), NOSPLIT|NOFRAME, $0-0 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - MOV ZERO, (X25) - ADD $8, X25 - RET - -TEXT runtime·duffcopy(SB), NOSPLIT|NOFRAME, $0-0 - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - MOV (X24), X31 - ADD $8, X24 - MOV X31, (X25) - ADD $8, X25 - - RET diff --git a/src/runtime/mkduff.go b/src/runtime/mkduff.go index 75ff437f26..06d8251fae 100644 --- a/src/runtime/mkduff.go +++ b/src/runtime/mkduff.go @@ -36,7 +36,6 @@ func main() { gen("arm", notags, zeroARM, copyARM) gen("ppc64x", tagsPPC64x, zeroPPC64x, copyPPC64x) gen("mips64x", tagsMIPS64x, zeroMIPS64x, copyMIPS64x) - gen("riscv64", notags, zeroRISCV64, copyRISCV64) } func gen(arch string, tags, zero, copy func(io.Writer)) { @@ -230,30 +229,3 @@ func copyMIPS64x(w io.Writer) { } fmt.Fprintln(w, "\tRET") } - -func zeroRISCV64(w io.Writer) { - // ZERO: always zero - // X25: ptr to memory to be zeroed - // X25 is updated as a side effect. - fmt.Fprintln(w, "TEXT runtime·duffzero(SB), NOSPLIT|NOFRAME, $0-0") - for i := 0; i < 128; i++ { - fmt.Fprintln(w, "\tMOV\tZERO, (X25)") - fmt.Fprintln(w, "\tADD\t$8, X25") - } - fmt.Fprintln(w, "\tRET") -} - -func copyRISCV64(w io.Writer) { - // X24: ptr to source memory - // X25: ptr to destination memory - // X24 and X25 are updated as a side effect - fmt.Fprintln(w, "TEXT runtime·duffcopy(SB), NOSPLIT|NOFRAME, $0-0") - for i := 0; i < 128; i++ { - fmt.Fprintln(w, "\tMOV\t(X24), X31") - fmt.Fprintln(w, "\tADD\t$8, X24") - fmt.Fprintln(w, "\tMOV\tX31, (X25)") - fmt.Fprintln(w, "\tADD\t$8, X25") - fmt.Fprintln(w) - } - fmt.Fprintln(w, "\tRET") -}