user: 这段汇编代码用C语言表示是什么样的?

```asm
<fib_number>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  movq   $0x0,0x28(%rsp)
  cmp    $0x1,%edi
  jbe    L356
  lea    -0x2(%rdi),%eax
  mov    %eax,0x1c(%rsp)
  mov    0x1c(%rsp),%esi
  lea    0x2(%rsi),%eax
  lea    0x1(%rsi),%r12d
  cmp    $0x13,%eax
  jle    L234
L300:
  movq   $0x0,0x20(%rsp)
  lea    -0x1(%rsi),%eax
  mov    %eax,0x8(%rsp)
  mov    0x8(%rsp),%esi
  lea    0x2(%rsi),%eax
  lea    0x1(%rsi),%ebx
  cmp    $0x13,%eax
  jle    L291
L339:
  movq   $0x0,0x10(%rsp)
  lea    -0x1(%rsi),%ebp
  lea    0x2(%rbp),%eax
  lea    0x1(%rbp),%r15d
  cmp    $0x13,%eax
  jle    L269
L155:
  lea    -0x1(%rbp),%ebx
  xor    %r12d,%r12d
L84:
  lea    0x2(%rbx),%eax
  lea    0x1(%rbx),%r13d
  xor    %r14d,%r14d
  cmp    $0x13,%eax
  jg     L108
  cmp    $0x1,%r13d
  jbe    L183
L128:
  lea    -0x1(%r13),%edi
  sub    $0x2,%r13d
  call   <fib_number>
  add    %rax,%r14
  cmp    $0x1,%r13d
  ja     L128
  lea    -0x1(%rbx),%edx
  and    $0x1,%edx
  mov    %edx,%r13d
L183:
  movslq %r13d,%rdx
  add    %r14,%rdx
  add    %rdx,%r12
  cmp    $0x1,%ebx
  ja     L162
  movslq %ebx,%rbx
  add    %r12,%rbx
  add    %rbx,0x10(%rsp)
L109:
  sub    $0x2,%ebp
  lea    0x2(%rbp),%eax
  lea    0x1(%rbp),%r15d
  cmp    $0x13,%eax
  jg     L155
L269:
  xor    %ebx,%ebx
  cmp    $0x1,%r15d
  jbe    L211
L272:
  lea    -0x1(%r15),%r12d
  xor    %r13d,%r13d
  cmp    $0x1,%r12d
  jbe    L318
L268:
  lea    -0x1(%r12),%edi
  sub    $0x2,%r12d
  call   <fib_number>
  add    %rax,%r13
  cmp    $0x1,%r12d
  ja     L268
  lea    -0x3(%r15),%r12d
  and    $0x1,%r12d
L318:
  movslq %r12d,%r12
  sub    $0x2,%r15d
  add    %r13,%r12
  add    %r12,%rbx
  cmp    $0x1,%r15d
  ja     L272
  lea    -0x1(%rbp),%edx
  and    $0x1,%edx
  mov    %edx,%r15d
L211:
  movslq %r15d,%rdx
  add    %rbx,%rdx
  add    %rdx,0x10(%rsp)
  cmp    $0x1,%ebp
  ja     L109
  movslq %ebp,%rbp
  add    0x10(%rsp),%rbp
  add    %rbp,0x20(%rsp)
L257:
  subl   $0x2,0x8(%rsp)
  mov    0x8(%rsp),%esi
  lea    0x2(%rsi),%eax
  lea    0x1(%rsi),%ebx
  cmp    $0x13,%eax
  jg     L339
L291:
  xor    %r12d,%r12d
  cmp    $0x1,%ebx
  jbe    L256
L248:
  lea    -0x1(%rbx),%r13d
  xor    %ebp,%ebp
  cmp    $0x1,%r13d
  jbe    L277
L168:
  lea    -0x1(%r13),%r14d
  xor    %r15d,%r15d
  cmp    $0x1,%r14d
  jbe    L349
L60:
  lea    -0x1(%r14),%edi
  sub    $0x2,%r14d
  call   <fib_number>
  add    %rax,%r15
  cmp    $0x1,%r14d
  ja     L60
  lea    -0x3(%r13),%r14d
  and    $0x1,%r14d
L349:
  movslq %r14d,%r14
  sub    $0x2,%r13d
  add    %r15,%r14
  add    %r14,%rbp
  cmp    $0x1,%r13d
  ja     L168
  lea    -0x3(%rbx),%edx
  and    $0x1,%edx
  mov    %edx,%r13d
L277:
  movslq %r13d,%rdx
  sub    $0x2,%ebx
  add    %rbp,%rdx
  add    %rdx,%r12
  cmp    $0x1,%ebx
  ja     L248
  mov    0x8(%rsp),%eax
  lea    -0x1(%rax),%ebx
  and    $0x1,%ebx
L256:
  movslq %ebx,%rbx
  add    %r12,%rbx
  add    %rbx,0x20(%rsp)
  cmpl   $0x1,0x8(%rsp)
  ja     L257
  movslq 0x8(%rsp),%r13
  add    0x20(%rsp),%r13
  add    %r13,0x28(%rsp)
L197:
  subl   $0x2,0x1c(%rsp)
  mov    0x1c(%rsp),%esi
  lea    0x2(%rsi),%eax
  lea    0x1(%rsi),%r12d
  cmp    $0x13,%eax
  jg     L300
L234:
  movq   $0x0,0x10(%rsp)
  cmp    $0x1,%r12d
  jbe    L344
L278:
  movq   $0x0,0x8(%rsp)
  lea    -0x1(%r12),%ebx
  cmp    $0x1,%ebx
  jbe    L57
L210:
  lea    -0x1(%rbx),%r15d
  xor    %ebp,%ebp
  cmp    $0x1,%r15d
  jbe    L112
L238:
  lea    -0x1(%r15),%r14d
  xor    %r13d,%r13d
  cmp    $0x1,%r14d
  jbe    L116
L31:
  lea    -0x1(%r14),%edi
  sub    $0x2,%r14d
  call   <fib_number>
  add    %rax,%r13
  cmp    $0x1,%r14d
  ja     L31
  lea    -0x3(%r15),%edx
  and    $0x1,%edx
  mov    %edx,%r14d
L116:
  movslq %r14d,%rdx
  sub    $0x2,%r15d
  add    %r13,%rdx
  add    %rdx,%rbp
  cmp    $0x1,%r15d
  ja     L238
  lea    -0x3(%rbx),%ecx
  and    $0x1,%ecx
  mov    %ecx,%r15d
L112:
  movslq %r15d,%rcx
  sub    $0x2,%ebx
  add    %rbp,%rcx
  add    %rcx,0x8(%rsp)
  cmp    $0x1,%ebx
  ja     L210
  lea    -0x3(%r12),%ebx
  and    $0x1,%ebx
L57:
  sub    $0x2,%r12d
  movslq %ebx,%rbx
  add    0x8(%rsp),%rbx
  add    %rbx,0x10(%rsp)
  cmp    $0x1,%r12d
  ja     L278
  mov    0x1c(%rsp),%eax
  lea    -0x1(%rax),%r12d
  and    $0x1,%r12d
L344:
  mov    0x1c(%rsp),%esi
  movslq %r12d,%r12
  add    0x10(%rsp),%r12
  add    %r12,0x28(%rsp)
  mov    %esi,%edi
  cmp    $0x1,%esi
  ja     L197
L356:
  mov    0x28(%rsp),%rax
  movslq %edi,%rdi
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  add    %rdi,%rax
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L108:
  lea    -0x1(%r13),%edi
  lea    -0x2(%r13),%r15d
  cmp    $0x13,%r13d
  jle    L307
L190:
  call   <fib_number>
  add    %rax,%r14
  cs nopw 0x0(%rax,%rax,1)
L63:
  mov    %r15d,%r13d
  lea    -0x1(%r13),%edi
  lea    -0x2(%r13),%r15d
  cmp    $0x13,%r13d
  jg     L190
L307:
  call   <fib_number>
  add    %rax,%r14
  cmp    $0x1,%r15d
  ja     L63
  movslq %r15d,%rcx
  add    %r14,%rcx
  add    %rcx,%r12
L162:
  sub    $0x2,%ebx
  jmp    L84
```

assistant: ```c
long fib_number(int n) {
  long fn, fn1, fn2;
  if (n == 0 || n == 1)
    return (n);
  if (n < 20)
    return (fib_number(n - 1) + fib_number(n - 2));
#pragma omp task shared(fn1)
  { fn1 = fib_number(n - 1); }
#pragma omp task shared(fn2)
  { fn2 = fib_number(n - 2); }
#pragma omp taskwait
  fn = fn1 + fn2;
  return (fn);
}
```