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

```asm
<merge>:
  endbr64
  lea    (%rsi,%rdx,1),%eax
  push   %r15
  mov    %edx,%r15d
  push   %r14
  mov    %rdi,%r14
  push   %r13
  mov    %esi,%r13d
  push   %r12
  push   %rbp
  mov    %eax,%ebp
  shr    $0x1f,%ebp
  push   %rbx
  add    %eax,%ebp
  sar    %ebp
  mov    %ebp,%r12d
  sub    %ebp,%r15d
  sub    $0x18,%rsp
  add    $0x1,%ebp
  sub    %esi,%r12d
  add    $0x1,%r12d
  test   %r12d,%r12d
  jle    L112
  test   %r15d,%r15d
  jle    L112
  movslq %esi,%rbx
  jmp    L150
  xchg   %ax,%ax
L86:
  sub    $0x1,%r12d
  add    $0x1,%rbx
  test   %r12d,%r12d
  jle    L112
L21:
  test   %r15d,%r15d
  jle    L112
L150:
  movslq %ebp,%rax
  lea    0x1(%rbx),%r13d
  mov    (%r14,%rax,4),%ecx
  lea    0x0(,%rax,4),%rdi
  cmp    %ecx,(%r14,%rbx,4)
  jl     L86
  sub    $0x1,%r15d
  cmp    %ebx,%ebp
  jle    L36
  lea    -0x1(%rbp),%edx
  mov    %ecx,0xc(%rsp)
  sub    %ebx,%edx
  mov    %rdx,%rax
  lea    0x4(,%rdx,4),%rdx
  neg    %rax
  shl    $0x2,%rax
  lea    -0x4(%rdi,%rax,1),%rsi
  add    %rax,%rdi
  add    %r14,%rsi
  add    %r14,%rdi
  call   <memmove@plt>
  mov    0xc(%rsp),%ecx
L36:
  mov    %ecx,(%r14,%rbx,4)
  add    $0x1,%ebp
  add    $0x1,%rbx
  test   %r12d,%r12d
  jg     L21
  nopl   (%rax)
L112:
  mov    %r13d,%eax
  test   %r12d,%r12d
  lea    (%r12,%r13,1),%r13d
  cmovle %eax,%r13d
  test   %r15d,%r15d
  jle    L105
  movslq %r13d,%rdx
  lea    -0x1(%r15),%esi
  movslq %ebp,%rdi
  lea    0x0(,%rdx,4),%rcx
  lea    0x4(,%rdi,4),%rax
  cmp    $0x2,%esi
  jbe    L97
  mov    %rcx,%r8
  sub    %rax,%r8
  cmp    $0x8,%r8
  jbe    L97
  mov    %r15d,%edx
  lea    -0x4(%r14,%rax,1),%rsi
  add    %r14,%rcx
  xor    %eax,%eax
  shr    $0x2,%edx
  shl    $0x4,%rdx
  cs nopw 0x0(%rax,%rax,1)
L95:
  movdqu (%rsi,%rax,1),%xmm0
  movups %xmm0,(%rcx,%rax,1)
  add    $0x10,%rax
  cmp    %rdx,%rax
  jne    L95
  mov    %r15d,%eax
  mov    %r15d,%ecx
  and    $0xfffffffc,%eax
  add    %eax,%ebp
  add    %eax,%r13d
  sub    %eax,%ecx
  cmp    %r15d,%eax
  je     L105
  lea    0x1(%rbp),%edx
  movslq %ebp,%rbp
  lea    0x1(%r13),%eax
  movslq %r13d,%r13
  mov    (%r14,%rbp,4),%esi
  mov    %esi,(%r14,%r13,4)
  cmp    $0x1,%ecx
  je     L105
  movslq %edx,%rdx
  cltq
  lea    0x0(,%rdx,4),%rdi
  mov    (%r14,%rdx,4),%edx
  lea    0x0(,%rax,4),%rsi
  mov    %edx,(%r14,%rax,4)
  cmp    $0x2,%ecx
  je     L105
  mov    0x4(%r14,%rdi,1),%eax
  mov    %eax,0x4(%r14,%rsi,1)
L105:
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L97:
  mov    %esi,%ecx
  lea    -0x4(%r14,%rax,1),%rax
  sub    %rdi,%rdx
  add    %rdi,%rcx
  lea    0x4(%r14,%rcx,4),%rsi
  xchg   %ax,%ax
L155:
  mov    (%rax),%ecx
  mov    %ecx,(%rax,%rdx,4)
  add    $0x4,%rax
  cmp    %rax,%rsi
  jne    L155
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void merge(int A[], int start, int end) {
  int l, r, val, i, j, k, reml, remr, temp;
  reml = (start + end) / 2 - start + 1;
  remr = end - start + 1 - reml;
  val = start;
  l = start;
  r = (start + end) / 2 + 1;
  while (reml > 0 && remr > 0) {
    if (A[l] < A[r]) {
      A[val++] = A[l++];
      reml--;
    } else {
      temp = A[r];
      remr--;
      for (j = r - 1; j >= l; j--)
        A[j + 1] = A[j];
      l++;
      r++;
      A[val++] = temp;
    }
  }
  while (reml > 0) {
    A[val++] = A[l++];
    reml--;
  }
  while (remr > 0) {
    A[val++] = A[r++];
    remr--;
  }
  return;
}
```