user: 下面的汇编指令对应的C源代码是什么:

```asm
<levenstein_distance>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r12
  push   %rbx
  add    $0xffffffffffffff80,%rsp
  mov    %rdi,-0x68(%rbp)
  mov    %rsi,-0x70(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%r12
  mov    -0x68(%rbp),%rax
  cmp    -0x70(%rbp),%rax
  jne    L55
  mov    $0x0,%eax
  jmp    L170
L55:
  mov    -0x68(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x54(%rbp)
  mov    -0x70(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x50(%rbp)
  cmpl   $0x0,-0x54(%rbp)
  je     L12
  cmpl   $0x0,-0x50(%rbp)
  jne    L126
L12:
  mov    $0x0,%eax
  jmp    L170
L126:
  mov    -0x50(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x48(%rbp)
  movslq %eax,%rdx
  mov    %rdx,-0x80(%rbp)
  movq   $0x0,-0x78(%rbp)
  movslq %eax,%rdx
  mov    %rdx,-0x90(%rbp)
  movq   $0x0,-0x88(%rbp)
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%ebx
  mov    $0x0,%edx
  div    %rbx
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L10:
  cmp    %rdx,%rsp
  je     L198
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L10
L198:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L53
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L53:
  mov    %rsp,%rax
  add    $0x3,%rax
  shr    $0x2,%rax
  shl    $0x2,%rax
  mov    %rax,-0x40(%rbp)
  mov    -0x50(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x38(%rbp)
  movslq %eax,%rdx
  mov    %rdx,-0xa0(%rbp)
  movq   $0x0,-0x98(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r14
  mov    $0x0,%r15d
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%edi
  mov    $0x0,%edx
  div    %rdi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L157:
  cmp    %rdx,%rsp
  je     L186
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L157
L186:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L110
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L110:
  mov    %rsp,%rax
  add    $0x3,%rax
  shr    $0x2,%rax
  shl    $0x2,%rax
  mov    %rax,-0x30(%rbp)
  movl   $0x0,-0x5c(%rbp)
  jmp    L187
L65:
  mov    -0x40(%rbp),%rax
  mov    -0x5c(%rbp),%edx
  movslq %edx,%rdx
  mov    -0x5c(%rbp),%ecx
  mov    %ecx,(%rax,%rdx,4)
  addl   $0x1,-0x5c(%rbp)
L187:
  mov    -0x5c(%rbp),%eax
  cmp    -0x50(%rbp),%eax
  jl     L65
  movl   $0x0,-0x5c(%rbp)
  jmp    L97
L191:
  mov    -0x5c(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    -0x30(%rbp),%rax
  mov    %edx,(%rax)
  movl   $0x0,-0x58(%rbp)
  jmp    L19
L3:
  mov    -0x5c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0x58(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x70(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  setne  %al
  movzbl %al,%eax
  mov    %eax,-0x4c(%rbp)
  mov    -0x40(%rbp),%rax
  mov    -0x58(%rbp),%edx
  movslq %edx,%rdx
  mov    (%rax,%rdx,4),%edx
  mov    -0x4c(%rbp),%eax
  add    %eax,%edx
  mov    -0x58(%rbp),%eax
  lea    0x1(%rax),%ecx
  mov    -0x40(%rbp),%rax
  movslq %ecx,%rcx
  mov    (%rax,%rcx,4),%eax
  lea    0x1(%rax),%ecx
  mov    -0x30(%rbp),%rax
  mov    -0x5c(%rbp),%esi
  movslq %esi,%rsi
  mov    (%rax,%rsi,4),%eax
  add    $0x1,%eax
  mov    -0x58(%rbp),%esi
  lea    0x1(%rsi),%ebx
  mov    %ecx,%esi
  mov    %eax,%edi
  call   <min3@plt>
  mov    -0x30(%rbp),%rdx
  movslq %ebx,%rcx
  mov    %eax,(%rdx,%rcx,4)
  addl   $0x1,-0x58(%rbp)
L19:
  mov    -0x58(%rbp),%eax
  cmp    -0x50(%rbp),%eax
  jl     L3
  movl   $0x0,-0x58(%rbp)
  jmp    L37
L49:
  mov    -0x30(%rbp),%rax
  mov    -0x58(%rbp),%edx
  movslq %edx,%rdx
  mov    (%rax,%rdx,4),%ecx
  mov    -0x40(%rbp),%rax
  mov    -0x58(%rbp),%edx
  movslq %edx,%rdx
  mov    %ecx,(%rax,%rdx,4)
  addl   $0x1,-0x58(%rbp)
L37:
  mov    -0x58(%rbp),%eax
  cmp    -0x50(%rbp),%eax
  jl     L49
  addl   $0x1,-0x5c(%rbp)
L97:
  mov    -0x5c(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jl     L191
  mov    -0x30(%rbp),%rax
  mov    -0x50(%rbp),%edx
  movslq %edx,%rdx
  mov    (%rax,%rdx,4),%eax
L170:
  mov    %r12,%rsp
  mov    -0x28(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L185
  call   <__stack_chk_fail@plt>
L185:
  lea    -0x20(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
```

assistant: ```c
int levenstein_distance(char *s, char *t) {
  if (s == t) {
    return 0;
  }
  int len_s = strlen(s);
  int len_t = strlen(t);
  if (len_s == 0 || len_t == 0) {
    return 0;
  }
  int v0[len_t];
  int v1[len_t];
  int i;
  for (i = 0; i < len_t; i++) {
    v0[i] = i;
  }
  for (i = 0; i < len_s; i++) {
    v1[0] = i + 1;
    int j;
    for (j = 0; j < len_t; j++) {
      int cost = (s[i] == t[j]) ? 0 : 1;
      v1[j + 1] = min3(v1[i] + 1, v0[j + 1] + 1, v0[j] + cost);
    }
    for (j = 0; j < len_t; j++) {
      v0[j] = v1[j];
    }
  }
  return v1[len_t];
}
```