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

```asm
<merge>:
  endbr64
  push   %r15
  push   %r14
  mov    %edx,%r14d
  push   %r13
  mov    %ecx,%r13d
  push   %r12
  mov    %esi,%r12d
  push   %rbp
  mov    %ecx,%ebp
  push   %rbx
  sub    %esi,%ebp
  mov    %rdi,%rbx
  lea    0x1(%rbp),%r15d
  lea    0x0(,%r15,4),%edi
  sub    $0x8,%rsp
  call   <malloc@plt>
  mov    %rax,%rdi
  test   %r15d,%r15d
  jle    L189
  mov    %rax,%rsi
  mov    %r14d,%ecx
  mov    %r12d,%edx
  xor    %eax,%eax
L57:
  cmp    %edx,%r14d
  jg     L14
  movslq %ecx,%rdx
  add    $0x1,%ecx
  mov    (%rbx,%rdx,4),%edx
  mov    %edx,(%rsi)
  lea    0x1(%rax),%edx
  cmp    %eax,%ebp
  je     L189
  mov    %ebp,%r9d
  movslq %edx,%rax
  movslq %ecx,%rsi
  sub    %edx,%r9d
  shl    $0x2,%rax
  cmp    %edx,%ebp
  lea    0x4(,%rsi,4),%r11
  setge  %r8b
  cmp    $0x2,%r9d
  lea    (%rax,%rdi,1),%r10
  seta   %sil
  test   %sil,%r8b
  je     L23
  lea    (%rbx,%r11,1),%r8
  mov    %r10,%rsi
  sub    %r8,%rsi
  cmp    $0x8,%rsi
  jbe    L23
  cmp    %edx,%ebp
  lea    0x1(%r9),%eax
  lea    -0x4(%rbx,%r11,1),%r9
  mov    $0x1,%esi
  cmovl  %esi,%eax
  xor    %esi,%esi
  mov    %eax,%r14d
  shr    $0x2,%r14d
  jmp    1080 <merge.cold>
  nopl   0x0(%rax)
L14:
  movslq %edx,%r8
  mov    (%rbx,%r8,4),%r8d
  cmp    %ecx,%r13d
  jl     L118
  movslq %ecx,%r9
  mov    (%rbx,%r9,4),%r9d
  cmp    %r8d,%r9d
  jg     L118
  mov    %r9d,%r8d
  add    $0x1,%ecx
  mov    %r8d,(%rsi)
  lea    0x1(%rax),%r8d
  cmp    %eax,%ebp
  je     L189
L184:
  add    $0x4,%rsi
  mov    %r8d,%eax
  jmp    L57
  nopl   (%rax)
L118:
  mov    %r8d,(%rsi)
  add    $0x1,%edx
  lea    0x1(%rax),%r8d
  cmp    %eax,%ebp
  jne    L184
L189:
  cmp    %r12d,%r13d
  jl     L66
  movslq %r12d,%rdx
  lea    0x4(%rdi),%r9
  mov    %r13d,%esi
  mov    %rdi,%rax
  shl    $0x2,%rdx
  sub    %r12d,%esi
  lea    (%rbx,%rdx,1),%rcx
  mov    %rcx,%r8
  sub    %r9,%r8
  cmp    $0x8,%r8
  jbe    L107
  cmp    $0x2,%esi
  jbe    L107
  add    $0x1,%esi
  sub    %rdi,%rcx
  mov    %esi,%edx
  shr    $0x2,%edx
  shl    $0x4,%rdx
  add    %rdi,%rdx
  nopw   0x0(%rax,%rax,1)
L166:
  movdqu (%rax),%xmm0
  movups %xmm0,(%rcx,%rax,1)
  add    $0x10,%rax
  cmp    %rdx,%rax
  jne    L166
  mov    %esi,%eax
  and    $0xfffffffc,%eax
  add    %eax,%r12d
  cmp    %eax,%esi
  je     L66
  cltq
  mov    (%rdi,%rax,4),%ecx
  lea    0x0(,%rax,4),%rdx
  movslq %r12d,%rax
  mov    %ecx,(%rbx,%rax,4)
  lea    0x1(%r12),%eax
  cmp    %eax,%r13d
  jl     L66
  mov    0x4(%rdi,%rdx,1),%ecx
  cltq
  add    $0x2,%r12d
  lea    0x0(,%rax,4),%rsi
  mov    %ecx,(%rbx,%rax,4)
  cmp    %r12d,%r13d
  jl     L66
  mov    0x8(%rdi,%rdx,1),%eax
  mov    %eax,0x4(%rbx,%rsi,1)
L66:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1060 <free@plt>
  nop
L107:
  sub    %rdi,%rdx
  lea    0x4(%rdi,%rsi,4),%rsi
  add    %rbx,%rdx
  nopl   0x0(%rax,%rax,1)
L19:
  mov    (%rax),%ecx
  mov    %ecx,(%rdx,%rax,1)
  add    $0x4,%rax
  cmp    %rsi,%rax
  jne    L19
  jmp    L66
L23:
  neg    %rax
  sub    %rdi,%rax
  lea    -0x4(%r11,%rax,1),%rax
  add    %rbx,%rax
  jmp    L164
```

assistant: ```c
void merge(int *list, int begin, int middle, int end) {
  int len = end - begin + 1;
  int i = 0;
  int j = 0;
  int a = begin;
  int b = middle;
  int *temp = (int *)malloc(len * sizeof(int));
  for (i = 0; i < len; i++) {
    if (a >= middle) {
      temp[i] = list[b];
      b = b + 1;
    } else if (b > end) {
      temp[i] = list[a];
      a = a + 1;
    } else if (list[a] < list[b]) {
      temp[i] = list[a];
      a = a + 1;
    } else {
      temp[i] = list[b];
      b = b + 1;
    }
  }
  for (i = begin, j = 0; i <= end; i++, j++) {
    list[i] = temp[j];
  }
  free(temp);
}
```