user: 请从给定的汇编指令推导出C源代码：

```asm
<create_as_benes>:
  endbr64
  push   %r15
  mov    %rdx,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edi,%ebx
  sub    $0x68,%rsp
  mov    %rcx,0x20(%rsp)
  mov    %fs:0x28,%rax
  mov    %rax,0x58(%rsp)
  xor    %eax,%eax
  call   <get_depth@plt>
  movq   $0x0,0x50(%rsp)
  mov    %eax,0x3c(%rsp)
  cmp    $0x1,%ebx
  je     L59
  mov    %ebx,%esi
  lea    0x50(%rsp),%rcx
  movl   $0x0,0x2c(%rsp)
  xor    %r12d,%r12d
  neg    %esi
  mov    %rcx,0x18(%rsp)
  mov    %esi,0x28(%rsp)
  test   %eax,%eax
  je     L125
L177:
  mov    0x28(%rsp),%eax
  test   %ebx,%ebx
  je     L129
  add    %ebx,%eax
  xor    %r13d,%r13d
  lea    0x4c(%rsp),%r14
  mov    %eax,0x38(%rsp)
  mov    %eax,%ebp
  lea    0x48(%rsp),%rax
  mov    %rax,0x10(%rsp)
  lea    0x44(%rsp),%rax
  mov    %rax,0x8(%rsp)
  jmp    L19
  xchg   %ax,%ax
L183:
  mov    %r12d,%esi
  mov    %ebx,%edi
  call   <get_input_to@plt>
  mov    0x28(%rsp),%esi
  mov    %r15,%r8
  lea    (%rax,%rsi,1),%r9d
L156:
  sub    $0x8,%rsp
  mov    %ebp,%ecx
  mov    %r15,%rdx
  xor    %eax,%eax
  push   $0x0
  mov    0x28(%rsp),%rdi
  lea    D2(%rip),%rsi
  call   <catf@plt>
  pop    %rdx
  pop    %rcx
  test   %rax,%rax
  js     L18
  add    $0x1,%r13d
  add    $0x1,%ebp
  cmp    %r13d,%ebx
  je     L172
L19:
  mov    0x10(%rsp),%r8
  mov    0x8(%rsp),%rcx
  mov    %r12d,%esi
  mov    %r14,%r9
  mov    %r13d,%edx
  mov    %ebx,%edi
  call   <get_span@plt>
  mov    0x4c(%rsp),%esi
  test   %esi,%esi
  jne    L6
  mov    0x44(%rsp),%edx
  mov    %r13d,%eax
  sub    %edx,%eax
  mov    %eax,%ecx
  or     $0x1,%eax
  and    $0xfffffffe,%ecx
  cmp    0x48(%rsp),%eax
  jb     L41
L6:
  mov    %r13d,%edx
  test   %r12d,%r12d
  jne    L183
  xor    %esi,%esi
  mov    %ebx,%edi
  call   <get_input_to@plt>
  mov    0x20(%rsp),%r8
  mov    %eax,%r9d
  jmp    L156
  nopl   0x0(%rax)
L41:
  add    %ecx,%edx
  mov    %r12d,%esi
  mov    %ebx,%edi
  mov    %edx,0x30(%rsp)
  call   <get_input_to@plt>
  mov    0x30(%rsp),%edx
  mov    %r12d,%esi
  mov    %ebx,%edi
  mov    %eax,0x34(%rsp)
  lea    0x1(%rdx),%r11d
  mov    %r11d,%edx
  mov    %r11d,0x30(%rsp)
  call   <get_input_to@plt>
  mov    0x30(%rsp),%r11d
  mov    0x34(%rsp),%r9d
  cmp    %r13d,%r11d
  jne    L86
  mov    %r9d,%edx
  mov    %eax,%r9d
  mov    %edx,%eax
L86:
  mov    0x20(%rsp),%r8
  test   %r12d,%r12d
  je     L116
  mov    0x28(%rsp),%edi
  mov    %r15,%r8
  add    %edi,%eax
  add    %edi,%r9d
L116:
  mov    %r11d,0x30(%rsp)
  mov    %ebp,%ecx
  mov    %r15,%rdx
  lea    D24(%rip),%rsi
  push   $0x0
  push   %r12
  mov    0x3c(%rsp),%edi
  push   %rdi
  push   %rax
  mov    0x38(%rsp),%rdi
  xor    %eax,%eax
  call   <catf@plt>
  add    $0x20,%rsp
  test   %rax,%rax
  js     L18
  mov    0x30(%rsp),%r11d
  xor    %eax,%eax
  cmp    %r13d,%r11d
  sete   %al
  add    $0x1,%r13d
  add    %eax,0x2c(%rsp)
  add    $0x1,%ebp
  cmp    %r13d,%ebx
  jne    L19
  nopl   0x0(%rax)
L172:
  mov    0x38(%rsp),%eax
  add    $0x1,%r12d
  mov    %eax,0x28(%rsp)
  cmp    %r12d,0x3c(%rsp)
  jne    L177
L137:
  mov    0x50(%rsp),%rax
  jmp    L101
L59:
  mov    0x20(%rsp),%rcx
  xor    %eax,%eax
  lea    0x50(%rsp),%rdi
  mov    %r15,%rdx
  lea    D23(%rip),%rsi
  call   <catf@plt>
  test   %rax,%rax
  jns    L137
  xchg   %ax,%ax
L18:
  mov    0x50(%rsp),%rdi
  call   <free@plt>
L125:
  xor    %eax,%eax
L101:
  mov    0x58(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L155
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L129:
  mov    %eax,0x38(%rsp)
  jmp    L172
L155:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_label: D2
type_infered: string
name: parse_data
arguments: data_label: D24
type_infered: string
name: parse_data
arguments: data_label: D23
type_infered: string

tool: D2:       %1$s[%2$d] <= %3$s[%4$d];


tool: D24:       %1$s[%2$d] <= `to_swap(%6$d, %7$d) ? %3$s[%5$d] : %3$s[%4$d];


tool: D23:       %1$s[0] <= %2$s[0];


assistant: ```c
char *create_as_benes(unsigned inputs, unsigned period, char *memory, char *input) {
  unsigned depth = get_depth(inputs);
  unsigned x, y;
  char *s = NULL;
  if (inputs == 1) {
    if (catf(&s, "      %1$s[0] <= %2$s[0];\n", memory, input) < 0)
      goto err0;
    return s;
  }
  unsigned pattern_pos = 0;
  for (x = 0; x < depth; ++x) {
    for (y = 0; y < inputs; ++y) {
      unsigned start, len, is_pipeline;
      get_span(inputs, x, y, &start, &len, &is_pipeline);
      if (is_pipeline || (y - start) / 2 * 2 + 1 >= len) {
        if (catf(&s, "      %1$s[%2$d] <= %3$s[%4$d];\n", memory, x * inputs + y, x == 0 ? input : memory, (x == 0 ? 0 : (x - 1) * inputs) + get_input_to(inputs, x, y), 0) < 0)
          goto err0;
      } else {
        unsigned start0 = start + (y - start) / 2 * 2;
        unsigned a, b;
        a = get_input_to(inputs, x, start0);
        b = get_input_to(inputs, x, start0 + 1);
        if (y == start0 + 1) {
          unsigned tmp = a;
          a = b;
          b = tmp;
        }
        if (catf(&s,
                 "      %1$s[%2$d] <= `to_swap(%6$d, "
                 "%7$d) ? %3$s[%5$d] : %3$s[%4$d];\n",
                 memory, x * inputs + y, x == 0 ? input : memory, (x == 0 ? 0 : (x - 1) * inputs) + a, (x == 0 ? 0 : (x - 1) * inputs) + b, pattern_pos, x, 0) < 0)
          goto err0;
        if (y == start0 + 1) {
          pattern_pos += 1;
        }
      }
    }
  }
  return s;
err0:
  free(s);
  return NULL;
}
```