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

```asm
<test>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %edi,%r13d
  cmp    $0x1,%edi
  jle    L579
  mov    $0x1,%ebp
  jmp    L314
L127:
  mov    %r12d,%ebp
L314:
  mov    $0x1,%edi
  call   <hash@plt>
  mov    %ebp,%edi
  call   <hash@plt>
  lea    0x1(%rbp),%r12d
  cmp    %r12d,%r13d
  jl     L127
  mov    %r12d,%ebx
L354:
  mov    $0x4,%edi
  call   <hash@plt>
  mov    %ebp,%edi
  call   <hash@plt>
  mov    %ebx,%edi
  call   <hash@plt>
  add    $0x1,%ebx
  cmp    %ebx,%r13d
  jge    L354
  cmp    %r12d,%r13d
  jne    L127
  mov    $0x1,%edi
  call   <hash@plt>
  mov    %r12d,%edi
  call   <hash@plt>
  mov    $0x3,%edi
  call   <hash@plt>
  mov    $0x1,%edi
  call   <hash@plt>
  cmp    $0x2,%r13d
  jle    L424
  mov    $0x6,%edi
  call   <hash@plt>
  mov    $0x1,%edi
  call   <hash@plt>
  mov    $0x2,%edi
  call   <hash@plt>
  mov    $0x3,%ebp
  jmp    L550
L320:
  mov    $0x1,%edi
  call   <hash@plt>
  mov    $0x1,%edi
  call   <hash@plt>
  jmp    L331
L387:
  add    $0x1,%ebp
  cmp    %ebp,%r13d
  jl     L380
L550:
  mov    $0x6,%edi
  call   <hash@plt>
  mov    $0x1,%edi
  call   <hash@plt>
  mov    %ebp,%edi
  call   <hash@plt>
  cmp    $0x2,%ebp
  jle    L387
  mov    $0x2,%ebx
L119:
  mov    $0x5,%edi
  call   <hash@plt>
  mov    %ebx,%edi
  call   <hash@plt>
  mov    %ebp,%edi
  call   <hash@plt>
  mov    $0x1,%edi
  call   <hash@plt>
  add    $0x1,%ebx
  cmp    %ebp,%ebx
  jne    L119
  jmp    L387
L424:
  jne    L331
  mov    $0x6,%edi
  call   <hash@plt>
  mov    $0x1,%edi
  call   <hash@plt>
  mov    $0x2,%edi
  call   <hash@plt>
  lea    -0x1(%r13),%eax
  mov    %eax,0x14(%rsp)
L292:
  cmp    $0x1,%r13d
  jg     L444
  je     L193
L265:
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L437:
  mov    $0x3,%edi
  call   <hash@plt>
  movslq %ebx,%rdi
  imul   $0x55555556,%rdi,%rdi
  shr    $0x20,%rdi
  sar    $0x1f,%ebx
  sub    %ebx,%edi
  call   <hash@plt>
  jmp    L258
L167:
  mov    $0x2,%edi
  call   <hash@plt>
  mov    0x8(%rsp),%ebx
  lea    0x3(%rbx),%eax
  movslq %eax,%rdi
  imul   $0x55555556,%rdi,%rdi
  shr    $0x20,%rdi
  sar    $0x1f,%eax
  sub    %eax,%edi
  call   <hash@plt>
  movslq %ebx,%rdi
  imul   $0x55555556,%rdi,%rdi
  shr    $0x20,%rdi
  sar    $0x1f,%ebx
  sub    %ebx,%edi
  call   <hash@plt>
  jmp    L431
L370:
  mov    0x8(%rsp),%eax
  add    $0x6,%eax
  movslq %eax,%rbx
  imul   $0x55555556,%rbx,%rbx
  shr    $0x20,%rbx
  sar    $0x1f,%eax
  sub    %eax,%ebx
  jmp    L89
L319:
  mov    $0x6,%edi
  call   <hash@plt>
  mov    0xc(%rsp),%eax
  movslq %eax,%rdi
  imul   $0x55555556,%rdi,%rdi
  shr    $0x20,%rdi
  sar    $0x1f,%eax
  sub    %eax,%edi
  call   <hash@plt>
  mov    %ebx,%edi
  call   <hash@plt>
  jmp    L249
L264:
  mov    $0x2,%edi
  call   <hash@plt>
  mov    %ebx,%edi
  call   <hash@plt>
  mov    0x8(%rsp),%eax
  movslq %eax,%rdi
  imul   $0x55555556,%rdi,%rdi
  shr    $0x20,%rdi
  sar    $0x1f,%eax
  sub    %eax,%edi
  call   <hash@plt>
  jmp    L153
L209:
  mov    0x8(%rsp),%eax
  add    $0x9,%eax
  movslq %eax,%rbx
  imul   $0x55555556,%rbx,%rbx
  shr    $0x20,%rbx
  sar    $0x1f,%eax
  sub    %eax,%ebx
  jmp    L82
L85:
  mov    $0x6,%edi
  call   <hash@plt>
  mov    %r12d,%edi
  call   <hash@plt>
  mov    %ebx,%edi
  call   <hash@plt>
  test   %r14d,%r14d
  je     L276
L16:
  mov    0x10(%rsp),%eax
  cmp    %ebx,%eax
  jge    L378
  mov    %eax,%ebp
L433:
  mov    $0x5,%edi
  call   <hash@plt>
  mov    %ebp,%edi
  call   <hash@plt>
  mov    %ebx,%edi
  call   <hash@plt>
  mov    %r12d,%edi
  call   <hash@plt>
  add    $0x1,%ebp
  cmp    %ebx,%ebp
  jne    L433
L378:
  add    $0x1,%ebx
  cmp    %ebx,%r13d
  jl     L404
L94:
  test   %r15d,%r15d
  je     L85
  test   %r14d,%r14d
  jne    L378
  mov    $0x2,%edi
  call   <hash@plt>
  mov    %ebx,%edi
  call   <hash@plt>
  mov    0x14(%rsp),%edi
  call   <hash@plt>
  jmp    L378
L404:
  mov    0x18(%rsp),%ecx
  cmp    %ecx,0xc(%rsp)
  je     L228
  mov    0x8(%rsp),%ebx
  add    $0x3,%ebx
  movslq %ebx,%rax
  imul   $0x55555556,%rax,%rax
  shr    $0x20,%rax
  mov    %ebx,%edx
  sar    $0x1f,%edx
  sub    %edx,%eax
  lea    (%rax,%rax,2),%eax
  cmp    %eax,%ebx
  je     L437
L258:
  mov    0xc(%rsp),%eax
  mov    %eax,0x8(%rsp)
L589:
  mov    0x8(%rsp),%ecx
  movslq %ecx,%r14
  imul   $0x55555556,%r14,%r14
  shr    $0x20,%r14
  mov    %ecx,%eax
  sar    $0x1f,%eax
  sub    %eax,%r14d
  lea    (%r14,%r14,2),%eax
  sub    %eax,%ecx
  mov    %ecx,%r14d
  je     L167
L431:
  mov    0x8(%rsp),%eax
  cmp    $0xfffffffa,%eax
  jge    L370
  mov    $0xfffffffc,%ebx
  sub    %eax,%ebx
  movslq %ebx,%rax
  imul   $0x55555556,%rax,%rax
  shr    $0x20,%rax
  sar    $0x1f,%ebx
  sub    %eax,%ebx
L89:
  mov    0x8(%rsp),%eax
  lea    0x1(%rax),%esi
  mov    %esi,0xc(%rsp)
  movslq %esi,%r15
  imul   $0x55555556,%r15,%r15
  shr    $0x20,%r15
  mov    %esi,%eax
  sar    $0x1f,%eax
  sub    %eax,%r15d
  lea    (%r15,%r15,2),%eax
  sub    %eax,%esi
  mov    %esi,%r15d
  je     L319
L249:
  test   %r14d,%r14d
  je     L264
L153:
  cmpl   $0xfffffff9,0x8(%rsp)
  jge    L209
  mov    $0xfffffffa,%ebx
  sub    0xc(%rsp),%ebx
  movslq %ebx,%rax
  imul   $0x55555556,%rax,%rax
  shr    $0x20,%rax
  sar    $0x1f,%ebx
  sub    %eax,%ebx
L82:
  cmp    %ebx,%r13d
  jl     L404
  mov    0xc(%rsp),%ecx
  movslq %ecx,%r12
  imul   $0x55555556,%r12,%r12
  shr    $0x20,%r12
  mov    %ecx,%eax
  sar    $0x1f,%eax
  sub    %eax,%r12d
  mov    0x8(%rsp),%esi
  movslq %esi,%rax
  imul   $0x55555556,%rax,%rax
  shr    $0x20,%rax
  mov    %esi,%edx
  sar    $0x1f,%edx
  sub    %edx,%eax
  mov    %eax,0x14(%rsp)
  lea    0x6(%rsi),%eax
  movslq %eax,%rdx
  imul   $0x55555556,%rdx,%rdx
  shr    $0x20,%rdx
  sar    $0x1f,%eax
  sub    %eax,%edx
  mov    $0xfffffffd,%eax
  sub    %ecx,%eax
  movslq %eax,%rcx
  imul   $0x55555556,%rcx,%rcx
  shr    $0x20,%rcx
  sar    $0x1f,%eax
  sub    %ecx,%eax
  cmp    $0xfffffffc,%esi
  cmovge %edx,%eax
  mov    %eax,0x10(%rsp)
  jmp    L94
L380:
  lea    0x0(%r13,%r13,2),%eax
  mov    %eax,0x1c(%rsp)
  cmp    $0x9,%eax
  jle    L228
  sub    $0x6,%eax
  mov    %eax,0x18(%rsp)
  movl   $0x3,0x8(%rsp)
  jmp    L589
L66:
  mov    $0x3,%edi
  call   <hash@plt>
  mov    0xc(%rsp),%eax
  movslq %eax,%rdi
  imul   $0x55555556,%rdi,%rdi
  shr    $0x20,%rdi
  sar    $0x1f,%eax
  sub    %eax,%edi
  call   <hash@plt>
  jmp    L92
L140:
  mov    $0x2,%edi
  call   <hash@plt>
  lea    0x2(%r15),%eax
  movslq %eax,%rdi
  imul   $0x55555556,%rdi,%rdi
  shr    $0x20,%rdi
  sar    $0x1f,%eax
  sub    %eax,%edi
  call   <hash@plt>
  movslq %r14d,%rdi
  imul   $0x55555556,%rdi,%rdi
  shr    $0x20,%rdi
  mov    %r14d,%eax
  sar    $0x1f,%eax
  sub    %eax,%edi
  call   <hash@plt>
  jmp    L226
L521:
  lea    0x5(%r15),%eax
  movslq %eax,%rbx
  imul   $0x55555556,%rbx,%rbx
  shr    $0x20,%rbx
  sar    $0x1f,%eax
  sub    %eax,%ebx
  cmp    %ebx,%r13d
  jl     L531
L338:
  movslq %r15d,%r12
  imul   $0x55555556,%r12,%r12
  shr    $0x20,%r12
  mov    %r15d,%eax
  sar    $0x1f,%eax
  sub    %eax,%r12d
  mov    %r12d,0x8(%rsp)
  lea    (%r12,%r12,2),%eax
  mov    %r15d,%r12d
  sub    %eax,%r12d
  movslq %r14d,%rdx
  imul   $0x55555556,%rdx,%rdx
  shr    $0x20,%rdx
  mov    %r14d,%eax
  sar    $0x1f,%eax
  mov    %edx,%r14d
  sub    %eax,%r14d
  jmp    L250
L27:
  mov    $0x6,%edi
  call   <hash@plt>
  mov    0x8(%rsp),%edi
  call   <hash@plt>
  mov    %ebx,%edi
  call   <hash@plt>
  jmp    L497
L429:
  add    $0x1,%ebx
  cmp    %ebx,%r13d
  jl     L531
L250:
  test   %r12d,%r12d
  je     L27
L497:
  test   %ebp,%ebp
  jne    L429
  mov    $0x2,%edi
  call   <hash@plt>
  mov    %ebx,%edi
  call   <hash@plt>
  mov    %r14d,%edi
  call   <hash@plt>
  jmp    L429
L531:
  cmp    0x10(%rsp),%r15d
  jge    L292
L560:
  mov    0xc(%rsp),%r15d
L498:
  lea    -0x1(%r15),%r14d
  lea    0x1(%r15),%esi
  mov    %esi,0xc(%rsp)
  movslq %esi,%rax
  imul   $0x55555556,%rax,%rax
  shr    $0x20,%rax
  mov    %esi,%edx
  sar    $0x1f,%edx
  sub    %edx,%eax
  lea    (%rax,%rax,2),%eax
  cmp    %eax,%esi
  je     L66
L92:
  movslq %r14d,%rbp
  imul   $0x55555556,%rbp,%rbp
  shr    $0x20,%rbp
  mov    %r14d,%eax
  sar    $0x1f,%eax
  sub    %eax,%ebp
  lea    0x0(%rbp,%rbp,2),%eax
  mov    %r14d,%ebp
  sub    %eax,%ebp
  je     L140
L226:
  cmp    $0xfffffffc,%r14d
  jge    L521
  mov    $0xfffffffd,%ebx
  sub    %r15d,%ebx
  movslq %ebx,%rax
  imul   $0x55555556,%rax,%rax
  shr    $0x20,%rax
  sar    $0x1f,%ebx
  sub    %eax,%ebx
  cmp    %ebx,%r13d
  jge    L338
  jmp    L560
L444:
  mov    $0x2,%edi
  call   <hash@plt>
  mov    %r13d,%edi
  call   <hash@plt>
  mov    0x14(%rsp),%edi
  call   <hash@plt>
L193:
  mov    $0x3,%edi
  call   <hash@plt>
  mov    %r13d,%edi
  call   <hash@plt>
  jmp    L265
L579:
  je     L320
L331:
  imul   $0x3,%r13d,%eax
  mov    %eax,0x1c(%rsp)
L228:
  mov    $0x9,%r15d
  mov    0x1c(%rsp),%eax
  cmp    %r15d,%eax
  cmovge %eax,%r15d
  lea    -0x1(%r13),%eax
  mov    %eax,0x14(%rsp)
  lea    (%rax,%rax,2),%eax
  mov    %eax,%ecx
  mov    %eax,0x10(%rsp)
  lea    -0x6(%r15),%eax
  cmp    %ecx,%eax
  jge    L292
  sub    $0x5,%r15d
  jmp    L498
L276:
  mov    $0x2,%edi
  call   <hash@plt>
  mov    %ebx,%edi
  call   <hash@plt>
  mov    0x14(%rsp),%edi
  call   <hash@plt>
  jmp    L16
```

assistant: ```c
void test(int M) {
  int c1, c2, c3;
  int i, j, k;
  if (M >= 2) {
    for (c2 = 1; c2 <= M - 1; c2++) {
      {
        hash(1);
        hash(c2);
      };
      for (c3 = c2 + 1; c3 <= M; c3++) {
        {
          hash(4);
          hash(c2);
          hash(c3);
        };
      }
    }
    {
      hash(1);
      hash(M);
    };
  }
  if (M == 1) {
    {
      hash(1);
      hash(1);
    };
  }
  if (M >= 2) {
    {
      hash(3);
      hash(1);
    };
  }
  if (M >= 3) {
    {
      hash(6);
      hash(1);
      hash(2);
    };
    for (c2 = 3; c2 <= M; c2++) {
      {
        hash(6);
        hash(1);
        hash(c2);
      };
      for (i = 2; i <= c2 - 1; i++) {
        {
          hash(5);
          hash(i);
          hash(c2);
          hash(1);
        };
      }
    }
  }
  if (M == 2) {
    {
      hash(6);
      hash(1);
      hash(2);
    };
  }
  for (c1 = 3; c1 <= 3 * M - 7; c1++) {
    if ((c1 + 2) % 3 == 0) {
      i = (c1 + 2) / 3;
      {
        hash(3);
        hash((c1 + 2) / 3);
      };
    }
    if (c1 % 3 == 0) {
      c2 = (c1 + 3) / 3;
      i = (c1 + 3) / 3;
      {
        hash(2);
        hash((c1 + 3) / 3);
        hash(c1 / 3);
      };
    }
    c2 = (((c1 + 6) < 0) ? -((-(c1 + 6) + (3) - 1) / (3)) : (c1 + 6) / (3));
    if ((c1 + 1) % 3 == 0) {
      i = (c1 + 1) / 3;
      {
        hash(6);
        hash((c1 + 1) / 3);
        hash(c2);
      };
    }
    if (c1 % 3 == 0) {
      {
        hash(2);
        hash(c2);
        hash(c1 / 3);
      };
    }
    for (c2 = (((c1 + 7) < 0) ? -((-(c1 + 7)) / (3)) : ((c1 + 7) + (3) - 1) / (3)); c2 <= M; c2++) {
      if ((c1 + 1) % 3 == 0) {
        i = (c1 + 1) / 3;
        {
          hash(6);
          hash((c1 + 1) / 3);
          hash(c2);
        };
      }
      if (c1 % 3 == 0) {
        {
          hash(2);
          hash(c2);
          hash(c1 / 3);
        };
      }
      if ((c1 + 1) % 3 == 0) {
        c3 = (c1 + 1) / 3;
        for (i = (((c1 + 4) < 0) ? -((-(c1 + 4)) / (3)) : ((c1 + 4) + (3) - 1) / (3)); i <= c2 - 1; i++) {
          k = (c1 + 1) / 3;
          {
            hash(5);
            hash(i);
            hash(c2);
            hash((c1 + 1) / 3);
          };
        }
      }
    }
  }
  for (c1 = ((3 * M - 6) > (3) ? (3 * M - 6) : (3)); c1 <= 3 * M - 4; c1++) {
    if ((c1 + 2) % 3 == 0) {
      i = (c1 + 2) / 3;
      {
        hash(3);
        hash((c1 + 2) / 3);
      };
    }
    if (c1 % 3 == 0) {
      c2 = (c1 + 3) / 3;
      i = (c1 + 3) / 3;
      {
        hash(2);
        hash((c1 + 3) / 3);
        hash(c1 / 3);
      };
    }
    for (c2 = (((c1 + 4) < 0) ? -((-(c1 + 4)) / (3)) : ((c1 + 4) + (3) - 1) / (3)); c2 <= M; c2++) {
      if ((c1 + 1) % 3 == 0) {
        i = (c1 + 1) / 3;
        {
          hash(6);
          hash((c1 + 1) / 3);
          hash(c2);
        };
      }
      if (c1 % 3 == 0) {
        {
          hash(2);
          hash(c2);
          hash(c1 / 3);
        };
      }
    }
  }
  if (M >= 2) {
    c1 = 3 * M - 3;
    j = M - 1;
    {
      hash(2);
      hash(M);
      hash(M - 1);
    };
  }
  if (M >= 1) {
    c1 = 3 * M - 2;
    {
      hash(3);
      hash(M);
    };
  }
}
```