user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<stringify_string>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x38(%rbp)
  movl   $0x0,-0x28(%rbp)
  movl   $0x0,-0x24(%rbp)
  movl   $0x0,-0x1c(%rbp)
  movl   $0x0,-0x2c(%rbp)
  jmp    L4
L75:
  cmpl   $0x0,-0x2c(%rbp)
  je     L263
  mov    -0x8(%rbp),%rax
  movb   $0x22,(%rax)
L263:
  movq   $0x1,-0x18(%rbp)
  mov    -0x38(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  jmp    L55
L267:
  movl   $0x0,-0x20(%rbp)
  cmpl   $0x0,-0x24(%rbp)
  je     L42
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  jne    L33
  movl   $0x1,-0x20(%rbp)
  movl   $0x1,-0x1c(%rbp)
  jmp    L95
L33:
  cmpl   $0x0,-0x1c(%rbp)
  jne    L95
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x27,%al
  jne    L95
  movl   $0x0,-0x24(%rbp)
  jmp    L95
L42:
  cmpl   $0x0,-0x28(%rbp)
  je     L206
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x22,%al
  je     L219
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  jne    L130
L219:
  movl   $0x1,-0x20(%rbp)
L130:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  jne    L1
  movl   $0x1,-0x1c(%rbp)
  jmp    L95
L1:
  cmpl   $0x0,-0x1c(%rbp)
  jne    L95
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x22,%al
  jne    L95
  movl   $0x0,-0x28(%rbp)
  jmp    L95
L206:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x22,%al
  jne    L78
  movl   $0x1,-0x28(%rbp)
  movl   $0x1,-0x20(%rbp)
  jmp    L95
L78:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x27,%al
  jne    L95
  movl   $0x1,-0x24(%rbp)
L95:
  cmpl   $0x0,-0x20(%rbp)
  je     L12
  cmpl   $0x0,-0x2c(%rbp)
  je     L11
  mov    -0x8(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x5c,(%rax)
L11:
  addq   $0x1,-0x18(%rbp)
L12:
  cmpl   $0x0,-0x2c(%rbp)
  je     L175
  mov    -0x8(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  mov    %al,(%rdx)
L175:
  addq   $0x1,-0x10(%rbp)
  addq   $0x1,-0x18(%rbp)
L55:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L267
  cmpl   $0x0,-0x2c(%rbp)
  jne    L246
  mov    -0x18(%rbp),%rax
  add    $0x2,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
L246:
  cmpl   $0x0,-0x2c(%rbp)
  je     L177
  mov    -0x8(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x22,(%rax)
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
L177:
  addl   $0x1,-0x2c(%rbp)
L4:
  cmpl   $0x1,-0x2c(%rbp)
  jle    L75
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
char *stringify_string(char *x) {
  size_t l;
  int i, inside_str = 0, inside_cc = 0, must_quote, has_quoted = 0;
  char *y, *d;
  for (i = 0; i < 2; i++) {
    if (i)
      d[0] = '"';
    for (l = 1, y = x; *y; y++, l++) {
      must_quote = 0;
      if (inside_cc) {
        if (*y == '\\') {
          must_quote = 1;
          has_quoted = 1;
        } else if (!has_quoted && *y == '\'')
          inside_cc = 0;
      } else if (inside_str) {
        if (*y == '"' || *y == '\\')
          must_quote = 1;
        if (*y == '\\')
          has_quoted = 1;
        else if (!has_quoted && *y == '"')
          inside_str = 0;
      } else if (*y == '"') {
        inside_str = 1;
        must_quote = 1;
      } else if (*y == '\'') {
        inside_cc = 1;
      }
      if (must_quote) {
        if (i)
          d[l] = '\\';
        l++;
      }
      if (i)
        d[l] = *y;
    }
    if (!i)
      d = malloc(l + 2);
    if (i) {
      d[l] = '"';
      d[l + 1] = 0;
    }
  }
  return d;
}
```