github.com/cloudwego/dynamicgo@v0.2.6-0.20240519101509-707f41b6b834/internal/native/dispatch_amd64.go (about)

     1  /*
     2   * Copyright 2023 CloudWeGo Authors.
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package native
    18  
    19  import (
    20  	"unsafe"
    21  
    22  	"github.com/bytedance/sonic/loader"
    23  	"github.com/cloudwego/dynamicgo/internal/cpu"
    24  	"github.com/cloudwego/dynamicgo/internal/native/avx"
    25  	"github.com/cloudwego/dynamicgo/internal/native/avx2"
    26  	"github.com/cloudwego/dynamicgo/internal/native/sse"
    27  	"github.com/cloudwego/dynamicgo/internal/native/types"
    28  	"github.com/cloudwego/dynamicgo/internal/rt"
    29  )
    30  
    31  const MaxFrameSize uintptr = 1024
    32  
    33  var (
    34      __Quote func(s unsafe.Pointer, nb int, dp unsafe.Pointer, dn unsafe.Pointer, flags uint64) int
    35  
    36      __I64toa func(out unsafe.Pointer, val int64) (ret int)
    37  
    38      __F64toa func(out unsafe.Pointer, val float64) (ret int)
    39  
    40  	__j2t_fsm_exec func(fsm unsafe.Pointer, buf unsafe.Pointer, src unsafe.Pointer, flag uint64) (ret uint64) 
    41  
    42  	__tb_skip func(st unsafe.Pointer, s unsafe.Pointer, n int, t uint8) (ret int)
    43  )
    44  
    45  //go:nosplit
    46  func Quote(s unsafe.Pointer, nb int, dp unsafe.Pointer, dn *int, flags uint64) int {
    47      return __Quote(rt.NoEscape(unsafe.Pointer(s)), nb, rt.NoEscape(unsafe.Pointer(dp)), rt.NoEscape(unsafe.Pointer(dn)), flags)
    48  }
    49  
    50  //go:nosplit
    51  func I64toa(out *byte, val int64) (ret int) {
    52      return __I64toa(rt.NoEscape(unsafe.Pointer(out)), val)
    53  }
    54  
    55  //go:nosplit
    56  func F64toa(out *byte, val float64) (ret int) {
    57      return __F64toa(rt.NoEscape(unsafe.Pointer(out)), val)
    58  }
    59  
    60  //go:nosplit
    61  func TBSkip(st *types.TStateMachine, s *byte, n int, t uint8) (ret int) {
    62  	return __tb_skip(rt.NoEscape(unsafe.Pointer(st)), rt.NoEscape(unsafe.Pointer(s)), n, t)
    63  }
    64  
    65  //go:nosplit
    66  func J2T_FSM(fsm *types.J2TStateMachine, buf *[]byte, src *string, flag uint64) (ret uint64) {
    67      return __j2t_fsm_exec(rt.NoEscape(unsafe.Pointer(fsm)), rt.NoEscape(unsafe.Pointer(buf)), rt.NoEscape(unsafe.Pointer(src)), flag)
    68  }
    69  
    70  var stubs = []loader.GoC{
    71      {"_j2t_fsm_exec", nil, &__j2t_fsm_exec},
    72      {"_tb_skip", nil, &__tb_skip},
    73      {"_quote", nil, &__Quote},
    74      {"_i64toa", nil, &__I64toa},
    75      {"_f64toa", nil, &__F64toa},
    76  }
    77  
    78  func useAVX() {
    79      loader.WrapGoC(avx.Text__native_entry__, avx.Funcs, stubs, "avx", "avx/native.c")
    80  }
    81  
    82  func useAVX2() {
    83      loader.WrapGoC(avx2.Text__native_entry__, avx2.Funcs, stubs, "avx2", "avx2/native.c")
    84  }
    85  
    86  func useSSE() {
    87      loader.WrapGoC(sse.Text__native_entry__, sse.Funcs, stubs, "sse", "sse/native.c")
    88  }
    89  
    90  func init() {
    91      if cpu.HasAVX2 {
    92          useAVX2()
    93      } else if cpu.HasAVX {
    94          useAVX()
    95      } else if cpu.HasSSE {
    96          useSSE()
    97      } else {
    98          panic("Unsupported CPU, maybe it's too old to run Sonic.")
    99      }
   100  }