user: 下面的汇编指令对应的C源代码是什么：

```asm
<test_strrchr>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x79797978,-0xe(%rbp)
  movw   $0x7a,-0xa(%rbp)
  lea    -0xe(%rbp),%rax
  mov    $0x7a,%esi
  mov    %rax,%rdi
  call   <strrchr@plt>
  lea    -0xe(%rbp),%rdx
  add    $0x4,%rdx
  cmp    %rdx,%rax
  je     L85
  mov    $0x101,%edx
  lea    D25(%rip),%rax
  mov    %rax,%rsi
  lea    D4(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  jmp    L89
L85:
  lea    -0xe(%rbp),%rax
  mov    $0x7a,%esi
  mov    %rax,%rdi
  call   <strrchr@plt>
  lea    -0xe(%rbp),%rdx
  add    $0x4,%rdx
  cmp    %rdx,%rax
  je     L68
  mov    $0x102,%edx
  lea    D25(%rip),%rax
  mov    %rax,%rsi
  lea    D4(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  jmp    L89
L68:
  lea    -0xe(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <strrchr@plt>
  lea    -0xe(%rbp),%rdx
  add    $0x5,%rdx
  cmp    %rdx,%rax
  je     L53
  mov    $0x105,%edx
  lea    D38(%rip),%rax
  mov    %rax,%rsi
  lea    D4(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  jmp    L89
L53:
  lea    -0xe(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <strrchr@plt>
  lea    -0xe(%rbp),%rdx
  add    $0x5,%rdx
  cmp    %rdx,%rax
  je     L143
  mov    $0x106,%edx
  lea    D23(%rip),%rax
  mov    %rax,%rsi
  lea    D4(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  jmp    L89
L143:
  lea    -0xe(%rbp),%rax
  mov    $0x64,%esi
  mov    %rax,%rdi
  call   <strrchr@plt>
  test   %rax,%rax
  je     L8
  mov    $0x108,%edx
  lea    D60(%rip),%rax
  mov    %rax,%rsi
  lea    D4(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  jmp    L89
L8:
  lea    -0xe(%rbp),%rax
  mov    $0x79,%esi
  mov    %rax,%rdi
  call   <strrchr@plt>
  lea    -0xe(%rbp),%rdx
  add    $0x3,%rdx
  cmp    %rdx,%rax
  je     L9
  mov    $0x109,%edx
  lea    D118(%rip),%rax
  mov    %rax,%rsi
  lea    D4(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  jmp    L89
L9:
  lea    -0xe(%rbp),%rax
  mov    $0x78,%esi
  mov    %rax,%rdi
  call   <strrchr@plt>
  lea    -0xe(%rbp),%rdx
  cmp    %rdx,%rax
  je     L140
  mov    $0x10a,%edx
  lea    D55(%rip),%rax
  mov    %rax,%rsi
  lea    D4(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  jmp    L89
L140:
  mov    $0x1,%eax
L89:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L30
  call   <__stack_chk_fail@plt>
L30:
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: data_label: D25
data_type: string
name: retrieve_data
arguments: data_label: D4
data_type: string
name: retrieve_data
arguments: data_label: D38
data_type: string
name: retrieve_data
arguments: data_label: D23
data_type: string
name: retrieve_data
arguments: data_label: D60
data_type: string
name: retrieve_data
arguments: data_label: D118
data_type: string
name: retrieve_data
arguments: data_label: D55
data_type: string

tool: D25: &data[4] == strrchr(data, 'z')

tool: D4: expression '%s' untrue at %d


tool: D38: &data[5] == strrchr(data, 0)

tool: D23: &data[5] == strrchr(data, '\0')

tool: D60: NULL == strrchr(data, 'd')

tool: D118: &data[3] == strrchr(data, 'y')

tool: D55: &data[0] == strrchr(data, 'x')

assistant: ```c
int test_strrchr(void) {
  char data[] = "xyyyz";
  do {
    if (!(&data[4] == strrchr(data, 'z'))) {
      printf("expression '%s' untrue at %d\n", "&data[4] == strrchr(data, 'z')", 257);
      return 0;
    }
  } while (0);
  do {
    if (!(&data[4] == strrchr(data, 'z'))) {
      printf("expression '%s' untrue at %d\n", "&data[4] == strrchr(data, 'z')", 258);
      return 0;
    }
  } while (0);
  do {
    if (!(&data[5] == strrchr(data, 0))) {
      printf("expression '%s' untrue at %d\n", "&data[5] == strrchr(data, 0)", 261);
      return 0;
    }
  } while (0);
  do {
    if (!(&data[5] == strrchr(data, '\0'))) {
      printf("expression '%s' untrue at %d\n", "&data[5] == strrchr(data, '\\0')", 262);
      return 0;
    }
  } while (0);
  do {
    if (!(NULL == strrchr(data, 'd'))) {
      printf("expression '%s' untrue at %d\n", "NULL == strrchr(data, 'd')", 264);
      return 0;
    }
  } while (0);
  do {
    if (!(&data[3] == strrchr(data, 'y'))) {
      printf("expression '%s' untrue at %d\n", "&data[3] == strrchr(data, 'y')", 265);
      return 0;
    }
  } while (0);
  do {
    if (!(&data[0] == strrchr(data, 'x'))) {
      printf("expression '%s' untrue at %d\n", "&data[0] == strrchr(data, 'x')", 266);
      return 0;
    }
  } while (0);
  return 1;
}
```