132 lines
4.1 KiB
Go
132 lines
4.1 KiB
Go
// +build go1.21,!go1.23
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// Copyright 2023 CloudWeGo Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package decoder
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import (
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`strconv`
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`unsafe`
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`github.com/bytedance/sonic/internal/jit`
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`github.com/twitchyliquid64/golang-asm/obj`
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`github.com/twitchyliquid64/golang-asm/obj/x86`
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)
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//go:linkname _runtime_writeBarrier runtime.writeBarrier
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var _runtime_writeBarrier uintptr
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//go:nosplit
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//go:linkname gcWriteBarrier2 runtime.gcWriteBarrier2
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func gcWriteBarrier2()
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// Notice: gcWriteBarrier must use R11 register!!
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var _R11 = _IC
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var (
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_V_writeBarrier = jit.Imm(int64(uintptr(unsafe.Pointer(&_runtime_writeBarrier))))
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_F_gcWriteBarrier2 = jit.Func(gcWriteBarrier2)
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)
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func (self *_Assembler) WritePtrAX(i int, rec obj.Addr, saveDI bool) {
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self.Emit("MOVQ", _V_writeBarrier, _R9)
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self.Emit("CMPL", jit.Ptr(_R9, 0), jit.Imm(0))
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self.Sjmp("JE", "_no_writeBarrier" + strconv.Itoa(i) + "_{n}")
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if saveDI {
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self.save(_DI, _R11)
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} else {
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self.save(_R11)
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}
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self.Emit("MOVQ", _F_gcWriteBarrier2, _R11)
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self.Rjmp("CALL", _R11)
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self.Emit("MOVQ", _AX, jit.Ptr(_R11, 0))
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self.Emit("MOVQ", rec, _DI)
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self.Emit("MOVQ", _DI, jit.Ptr(_R11, 8))
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if saveDI {
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self.load(_DI, _R11)
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} else {
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self.load(_R11)
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}
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self.Link("_no_writeBarrier" + strconv.Itoa(i) + "_{n}")
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self.Emit("MOVQ", _AX, rec)
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}
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func (self *_Assembler) WriteRecNotAX(i int, ptr obj.Addr, rec obj.Addr, saveDI bool, saveAX bool) {
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if rec.Reg == x86.REG_AX || rec.Index == x86.REG_AX {
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panic("rec contains AX!")
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}
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self.Emit("MOVQ", _V_writeBarrier, _R9)
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self.Emit("CMPL", jit.Ptr(_R9, 0), jit.Imm(0))
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self.Sjmp("JE", "_no_writeBarrier" + strconv.Itoa(i) + "_{n}")
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if saveAX {
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self.save(_AX, _R11)
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} else {
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self.save(_R11)
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}
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self.Emit("MOVQ", _F_gcWriteBarrier2, _R11)
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self.Rjmp("CALL", _R11)
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self.Emit("MOVQ", ptr, jit.Ptr(_R11, 0))
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self.Emit("MOVQ", rec, _AX)
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self.Emit("MOVQ", _AX, jit.Ptr(_R11, 8))
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if saveAX {
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self.load(_AX, _R11)
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} else {
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self.load(_R11)
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}
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self.Link("_no_writeBarrier" + strconv.Itoa(i) + "_{n}")
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self.Emit("MOVQ", ptr, rec)
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}
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func (self *_ValueDecoder) WritePtrAX(i int, rec obj.Addr, saveDI bool) {
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self.Emit("MOVQ", _V_writeBarrier, _R9)
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self.Emit("CMPL", jit.Ptr(_R9, 0), jit.Imm(0))
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self.Sjmp("JE", "_no_writeBarrier" + strconv.Itoa(i) + "_{n}")
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if saveDI {
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self.save(_DI, _R11)
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} else {
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self.save(_R11)
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}
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self.Emit("MOVQ", _F_gcWriteBarrier2, _R11)
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self.Rjmp("CALL", _R11)
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self.Emit("MOVQ", _AX, jit.Ptr(_R11, 0))
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self.Emit("MOVQ", rec, _DI)
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self.Emit("MOVQ", _DI, jit.Ptr(_R11, 8))
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if saveDI {
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self.load(_DI, _R11)
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} else {
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self.load(_R11)
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}
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self.Link("_no_writeBarrier" + strconv.Itoa(i) + "_{n}")
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self.Emit("MOVQ", _AX, rec)
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}
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func (self *_ValueDecoder) WriteRecNotAX(i int, ptr obj.Addr, rec obj.Addr, saveDI bool) {
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if rec.Reg == x86.REG_AX || rec.Index == x86.REG_AX {
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panic("rec contains AX!")
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}
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self.Emit("MOVQ", _V_writeBarrier, _AX)
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self.Emit("CMPL", jit.Ptr(_AX, 0), jit.Imm(0))
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self.Sjmp("JE", "_no_writeBarrier" + strconv.Itoa(i) + "_{n}")
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self.save(_R11)
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self.Emit("MOVQ", _F_gcWriteBarrier2, _R11)
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self.Rjmp("CALL", _R11)
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self.Emit("MOVQ", ptr, jit.Ptr(_R11, 0))
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self.Emit("MOVQ", rec, _AX)
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self.Emit("MOVQ", _AX, jit.Ptr(_R11, 8))
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self.load(_R11)
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self.Link("_no_writeBarrier" + strconv.Itoa(i) + "_{n}")
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self.Emit("MOVQ", ptr, rec)
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} |