user: 这段汇编代码用C语言表示是什么样的：

```asm
<test_copy>:
  endbr64
  push   %r12
  mov    $0x1,%edx
  push   %rbp
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0x13(%rsp),%rbp
  lea    0xc(%rsp),%r12
  movb   $0x0,0xc(%rsp)
  mov    %rbp,%rdi
  mov    %r12,%rsi
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  test   %eax,%eax
  jne    L119
L131:
  xor    %ecx,%ecx
  mov    %rbp,%rdi
  mov    $0x2,%edx
  mov    %r12,%rsi
  mov    %cx,0xc(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  test   %eax,%eax
  jne    L60
L137:
  mov    $0x31,%edx
  mov    %rbp,%rdi
  mov    %r12,%rsi
  mov    %dx,0xc(%rsp)
  mov    $0x2,%edx
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x1,%eax
  je     L83
  call   <call_not_eliminated_on_line_46@plt>
L83:
  mov    $0x3231,%eax
  mov    %rbp,%rdi
  mov    $0x3,%edx
  mov    %r12,%rsi
  mov    %ax,0xc(%rsp)
  movb   $0x0,0xe(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x2,%eax
  je     L105
  call   <call_not_eliminated_on_line_47@plt>
L105:
  mov    %rbp,%rdi
  mov    $0x2,%edx
  mov    %r12,%rsi
  movl   $0x31,0xc(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x1,%eax
  je     L14
  call   <call_not_eliminated_on_line_50@plt>
L14:
  mov    %rbp,%rdi
  mov    $0x4,%edx
  mov    %r12,%rsi
  movl   $0x31,0xc(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x1,%eax
  je     L17
  call   <call_not_eliminated_on_line_53@plt>
L17:
  mov    %rbp,%rdi
  mov    $0x3,%edx
  mov    %r12,%rsi
  movl   $0x3231,0xc(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x2,%eax
  je     L149
  call   <call_not_eliminated_on_line_54@plt>
L149:
  mov    %rbp,%rdi
  mov    $0x4,%edx
  mov    %r12,%rsi
  movl   $0x3231,0xc(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x2,%eax
  je     L13
  call   <call_not_eliminated_on_line_55@plt>
L13:
  mov    %rbp,%rdi
  mov    $0x4,%edx
  mov    %r12,%rsi
  movl   $0x333231,0xc(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x3,%eax
  je     L94
  call   <call_not_eliminated_on_line_56@plt>
L94:
  mov    %rbp,%rdi
  mov    $0x4,%edx
  mov    %r12,%rsi
  movl   $0x31,0xc(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x1,%eax
  je     L7
  call   <call_not_eliminated_on_line_57@plt>
L7:
  mov    %rbp,%rdi
  mov    $0x4,%edx
  mov    %r12,%rsi
  movl   $0x3231,0xc(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x2,%eax
  je     L112
  call   <call_not_eliminated_on_line_58@plt>
L112:
  mov    %rbp,%rdi
  mov    $0x4,%edx
  mov    %r12,%rsi
  movl   $0x333231,0xc(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x3,%eax
  je     L134
  call   <call_not_eliminated_on_line_59@plt>
L134:
  mov    %rbp,%rdi
  mov    $0x5,%edx
  mov    %r12,%rsi
  movb   $0x0,0x10(%rsp)
  movl   $0x34333231,0xc(%rsp)
  call   <memcpy@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  cmp    $0x4,%eax
  je     L58
  call   <call_not_eliminated_on_line_64@plt>
L58:
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L138
  add    $0x28,%rsp
  pop    %rbp
  pop    %r12
  ret
  nopl   (%rax)
L60:
  call   <call_not_eliminated_on_line_45@plt>
  jmp    L137
  nopw   0x0(%rax,%rax,1)
L119:
  call   <call_not_eliminated_on_line_44@plt>
  jmp    L131
L138:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void test_copy(void) {
  do {
    char a[2], b[2];
    (a[0] = 0);
    memcpy(b, a, 1);
    if ((!(0 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_44(void);
        call_not_eliminated_on_line_44();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[2], b[2];
    (a[0] = 0, a[1] = 0);
    memcpy(b, a, 2);
    if ((!(0 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_45(void);
        call_not_eliminated_on_line_45();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[2], b[2];
    (a[0] = '1', a[1] = 0);
    memcpy(b, a, 2);
    if ((!(1 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_46(void);
        call_not_eliminated_on_line_46();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[4], b[4];
    (a[0] = '1', a[1] = '2', a[2] = 0);
    memcpy(b, a, 3);
    if ((!(2 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_47(void);
        call_not_eliminated_on_line_47();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[4], b[4];
    (a[0] = '1', a[1] = 0, a[2] = 0, a[3] = 0);
    memcpy(b, a, 2);
    if ((!(1 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_50(void);
        call_not_eliminated_on_line_50();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[4], b[4];
    (a[0] = '1', a[1] = 0, a[2] = 0, a[3] = 0);
    memcpy(b, a, 4);
    if ((!(1 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_53(void);
        call_not_eliminated_on_line_53();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[4], b[4];
    (a[0] = '1', a[1] = '2', a[2] = 0, a[3] = 0);
    memcpy(b, a, 3);
    if ((!(2 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_54(void);
        call_not_eliminated_on_line_54();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[4], b[4];
    (a[0] = '1', a[1] = '2', a[2] = 0, a[3] = 0);
    memcpy(b, a, 4);
    if ((!(2 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_55(void);
        call_not_eliminated_on_line_55();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[4], b[4];
    (a[0] = '1', a[1] = '2', a[2] = '3', a[3] = 0);
    memcpy(b, a, 4);
    if ((!(3 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_56(void);
        call_not_eliminated_on_line_56();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[5], b[5];
    (a[0] = '1', a[1] = 0, a[2] = 0, a[3] = 0);
    memcpy(b, a, 4);
    if ((!(1 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_57(void);
        call_not_eliminated_on_line_57();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[5], b[5];
    (a[0] = '1', a[1] = '2', a[2] = 0, a[3] = 0);
    memcpy(b, a, 4);
    if ((!(2 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_58(void);
        call_not_eliminated_on_line_58();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[5], b[5];
    (a[0] = '1', a[1] = '2', a[2] = '3', a[3] = 0);
    memcpy(b, a, 4);
    if ((!(3 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_59(void);
        call_not_eliminated_on_line_59();
      } while (0);
    else
      (void)0;
  } while (0);
  do {
    char a[5], b[5];
    (a[0] = '1', a[1] = '2', a[2] = '3', a[3] = '4', a[4] = 0);
    memcpy(b, a, 5);
    if ((!(4 == strlen(b))))
      do {
        extern void call_not_eliminated_on_line_64(void);
        call_not_eliminated_on_line_64();
      } while (0);
    else
      (void)0;
  } while (0);
}
```