user: 下面的汇编指令对应的C源代码是什么:

```asm
<variance>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r13
  push   %r12
  push   %rbx
  sub    $0xe8,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%r12
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  call   <strlen@plt>
  add    $0xf,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffffff0,%rcx
  and    $0xfffffffffffff000,%rax
  mov    %rsp,%rdx
  sub    %rax,%rdx
L114:
  cmp    %rdx,%rsp
  je     L98
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L114
L98:
  mov    %rcx,%rax
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  je     L81
  orq    $0x0,-0x8(%rsp,%rax,1)
L81:
  mov    %rbx,%rsi
  mov    %rsp,%rdi
  call   <strcpy@plt>
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <mean@plt>
  movsd  %xmm0,-0x100(%rbp)
  lea    D6(%rip),%rsi
  mov    %rsp,%rdi
  call   <strtok@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L155
  lea    D6(%rip),%r13
L59:
  mov    %r12,%rdi
  call   <strlen@plt>
  mov    %rax,%rdx
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  je     L141
  mov    %r13,%rsi
  mov    $0x0,%edi
  call   <strtok@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  jne    L59
  jmp    L155
L141:
  lea    -0xf0(%rbp),%rdi
  mov    %rbx,%rsi
  call   <strcpy@plt>
L155:
  mov    $0x0,%ebx
  mov    $0x0,%r13d
  lea    -0xf0(%rbp),%r12
  jmp    L12
L144:
  movzbl (%rbx,%r12,1),%edx
  movslq %r13d,%rax
  mov    %dl,-0xf0(%rbp,%rax,1)
  lea    0x1(%r13),%r13d
L111:
  add    $0x1,%rbx
L12:
  mov    %r12,%rdi
  call   <strlen@plt>
  cmp    %rbx,%rax
  jbe    L72
  movsbl (%rbx,%r12,1),%edi
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L144
  movzbl (%rbx,%r12,1),%eax
  and    $0xfffffffd,%eax
  cmp    $0x2c,%al
  je     L144
  jmp    L111
L72:
  movslq %r13d,%r13
  movb   $0x0,-0xf0(%rbp,%r13,1)
  lea    -0xf0(%rbp),%rdi
  lea    D23(%rip),%rsi
  call   <strtok@plt>
  mov    %rax,%rdi
  test   %rax,%rax
  je     L35
  pxor   %xmm3,%xmm3
  movsd  %xmm3,-0xf8(%rbp)
  lea    D23(%rip),%rbx
L158:
  call   <atof@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  subsd  -0x100(%rbp),%xmm0
  cvttsd2si %xmm0,%rdi
  mov    $0x2,%esi
  call   <pow@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  addsd  -0xf8(%rbp),%xmm0
  movsd  %xmm0,-0xf8(%rbp)
  mov    %rbx,%rsi
  mov    $0x0,%edi
  call   <strtok@plt>
  mov    %rax,%rdi
  test   %rax,%rax
  jne    L158
L22:
  movsd  -0xf8(%rbp),%xmm0
  divsd  D40(%rip),%xmm0
  mov    -0x28(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L134
  lea    -0x18(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %rbp
  ret
L35:
  pxor   %xmm4,%xmm4
  movsd  %xmm4,-0xf8(%rbp)
  jmp    L22
L134:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_tag: D6
type: string
name: parse_data
arguments: data_tag: D23
type: string
name: parse_data
arguments: data_tag: D40
type: f32[2]

tool: D6: 


tool: D23: ,

tool: {"D40": [0.0,2.625]}

assistant: ```c
double variance(char *str, char *town) {
  char buff[strlen(str)];
  strcpy(buff, str);
  char line[200];
  double rain_mean = mean(str, town);
  char *pch = strtok(buff, "\n");
  while (pch != NULL) {
    if (strncmp(pch, town, strlen(town)) == 0) {
      strcpy(line, pch);
      break;
    }
    pch = strtok(NULL, "\n");
  }
  int cnt = 0;
  for (size_t i = 0; i < strlen(line); ++i) {
    if (isdigit(line[i]) || line[i] == '.' || line[i] == ',')
      line[cnt++] = line[i];
  }
  line[cnt] = '\0';
  double sum = 0;
  pch = strtok(line, ",");
  while (pch != NULL) {
    sum += pow(atof(pch) - rain_mean, 2);
    pch = strtok(NULL, ",");
  }
  return sum / 12;
}
```