github.com/cloudwego/frugal@v0.1.15/internal/atm/ssa/funcdata.go (about)

     1  /*
     2   * Copyright 2022 ByteDance Inc.
     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 ssa
    18  
    19  import (
    20      `fmt`
    21      `strings`
    22  
    23      `github.com/cloudwego/frugal/internal/rt`
    24  )
    25  
    26  type FuncData struct {
    27      Code     []byte
    28      Layout   *FuncLayout
    29      Liveness map[Pos]SlotSet
    30      StackMap map[uintptr]*rt.StackMap
    31  }
    32  
    33  type FuncLayout struct {
    34      Ins   []IrNode
    35      Start map[int]int
    36      Block map[int]*BasicBlock
    37  }
    38  
    39  func (self *FuncLayout) String() string {
    40      ni := len(self.Ins)
    41      ns := len(self.Start)
    42      ss := make([]string, 0, ni + ns)
    43  
    44      /* print every instruction */
    45      for i, ins := range self.Ins {
    46          if bb, ok := self.Block[i]; !ok {
    47              ss = append(ss, fmt.Sprintf("%06x |     %s", i, ins))
    48          } else {
    49              ss = append(ss, fmt.Sprintf("%06x | bb_%d:", i, bb.Id), fmt.Sprintf("%06x |     %s", i, ins))
    50          }
    51      }
    52  
    53      /* join them together */
    54      return fmt.Sprintf(
    55          "FuncLayout {\n%s\n}",
    56          strings.Join(ss, "\n"),
    57      )
    58  }