user: Demonstrate the C code that generates the assembly output below:

```asm
<clpf_block>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  lea    -0x4000(%rsp),%r11
L17:
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  cmp    %r11,%rsp
  jne    L17
  sub    $0x60,%rsp
  mov    %rdi,-0x4048(%rbp)
  mov    %esi,-0x404c(%rbp)
  mov    %edx,-0x4050(%rbp)
  mov    %ecx,-0x4054(%rbp)
  mov    %r8d,-0x4058(%rbp)
  mov    %r9d,-0x405c(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x4054(%rbp),%eax
  mov    %eax,-0x403c(%rbp)
  jmp    L53
L110:
  mov    -0x404c(%rbp),%eax
  mov    %eax,-0x4038(%rbp)
  jmp    L136
L118:
  mov    -0x403c(%rbp),%eax
  sub    $0x1,%eax
  imul   -0x405c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x4038(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x4048(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x4034(%rbp)
  mov    -0x403c(%rbp),%eax
  imul   -0x405c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x4038(%rbp),%eax
  add    %edx,%eax
  cltq
  shl    $0x2,%rax
  lea    -0x4(%rax),%rdx
  mov    -0x4048(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x4030(%rbp)
  mov    -0x403c(%rbp),%eax
  imul   -0x405c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x4038(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x4048(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x402c(%rbp)
  mov    -0x403c(%rbp),%eax
  imul   -0x405c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x4038(%rbp),%eax
  add    %edx,%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x4048(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x4028(%rbp)
  mov    -0x403c(%rbp),%eax
  add    $0x1,%eax
  imul   -0x405c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x4038(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x4048(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x4024(%rbp)
  mov    -0x4034(%rbp),%edx
  mov    -0x4030(%rbp),%eax
  add    %eax,%edx
  mov    -0x4028(%rbp),%eax
  add    %eax,%edx
  mov    -0x4024(%rbp),%eax
  add    %eax,%edx
  mov    -0x402c(%rbp),%eax
  lea    0x0(,%rax,4),%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  mov    %eax,-0x4020(%rbp)
  cmpl   $0x0,-0x4020(%rbp)
  jns    L32
  mov    $0xffffffff,%eax
  jmp    L59
L32:
  mov    $0x1,%eax
L59:
  mov    %eax,-0x401c(%rbp)
  mov    -0x4020(%rbp),%eax
  mov    %eax,%edx
  neg    %edx
  cmovns %edx,%eax
  add    $0x2,%eax
  sar    $0x2,%eax
  mov    $0x1,%edx
  test   %eax,%eax
  cmovg  %edx,%eax
  mov    -0x401c(%rbp),%edx
  imul   %edx,%eax
  mov    %eax,-0x4018(%rbp)
  mov    -0x402c(%rbp),%edx
  mov    -0x4018(%rbp),%eax
  add    %edx,%eax
  cmp    $0xff,%eax
  jg     L55
  mov    -0x402c(%rbp),%edx
  mov    -0x4018(%rbp),%eax
  add    %edx,%eax
  mov    $0x0,%edx
  test   %eax,%eax
  cmovs  %edx,%eax
  jmp    L14
L55:
  mov    $0xff,%eax
L14:
  mov    %eax,-0x4014(%rbp)
  mov    -0x403c(%rbp),%eax
  sub    -0x4054(%rbp),%eax
  shl    $0x6,%eax
  mov    %eax,%edx
  mov    -0x4038(%rbp),%eax
  add    %edx,%eax
  sub    -0x404c(%rbp),%eax
  cltq
  mov    -0x4014(%rbp),%edx
  mov    %edx,-0x4010(%rbp,%rax,4)
  addl   $0x1,-0x4038(%rbp)
L136:
  mov    -0x4038(%rbp),%eax
  cmp    -0x4050(%rbp),%eax
  jl     L118
  addl   $0x1,-0x403c(%rbp)
L53:
  mov    -0x403c(%rbp),%eax
  cmp    -0x4058(%rbp),%eax
  jl     L110
  mov    -0x4054(%rbp),%eax
  mov    %eax,-0x403c(%rbp)
  jmp    L7
L68:
  mov    -0x404c(%rbp),%eax
  mov    %eax,-0x4038(%rbp)
  jmp    L72
L6:
  mov    -0x403c(%rbp),%eax
  sub    -0x4054(%rbp),%eax
  shl    $0x6,%eax
  mov    %eax,%edx
  mov    -0x4038(%rbp),%eax
  add    %edx,%eax
  sub    -0x404c(%rbp),%eax
  mov    %eax,%ecx
  mov    -0x403c(%rbp),%eax
  imul   -0x405c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x4038(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x4048(%rbp),%rax
  add    %rax,%rdx
  movslq %ecx,%rax
  mov    -0x4010(%rbp,%rax,4),%eax
  mov    %eax,(%rdx)
  addl   $0x1,-0x4038(%rbp)
L72:
  mov    -0x4038(%rbp),%eax
  cmp    -0x4050(%rbp),%eax
  jl     L6
  addl   $0x1,-0x403c(%rbp)
L7:
  mov    -0x403c(%rbp),%eax
  cmp    -0x4058(%rbp),%eax
  jl     L68
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L3
  call   <__stack_chk_fail@plt>
L3:
  leave
  ret
```

assistant: ```c
void clpf_block(uint8_t *rec, int x0, int x1, int y0, int y1, int stride) {
  int y, x, A, B, C, D, X, Xprime, delta, sum, sign;
  uint8_t tmp_block[64 * 64];
  for (y = y0; y < y1; y++) {
    for (x = x0; x < x1; x++) {
      A = rec[(y - 1) * stride + x + 0];
      B = rec[(y + 0) * stride + x - 1];
      X = rec[(y + 0) * stride + x + 0];
      C = rec[(y + 0) * stride + x + 1];
      D = rec[(y + 1) * stride + x + 0];
      sum = A + B + C + D - 4 * X;
      sign = sum < 0 ? -1 : 1;
      delta = sign * ((1) < (((abs(sum) + 2) >> 2)) ? (1) : (((abs(sum) + 2) >> 2)));
      Xprime = ((255) < (((0) > ((X + delta)) ? (0) : ((X + delta)))) ? (255) : (((0) > ((X + delta)) ? (0) : ((X + delta)))));
      tmp_block[(y - y0) * 64 + x - x0] = Xprime;
    }
  }
  for (y = y0; y < y1; y++) {
    for (x = x0; x < x1; x++) {
      rec[y * stride + x] = tmp_block[(y - y0) * 64 + x - x0];
    }
  }
}
```