user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<ancestralGamma>:
  endbr64
  push   %r15
  movslq %r8d,%r15
  push   %r14
  mov    %r15d,%eax
  mov    %ecx,%r14d
  push   %r13
  imul   %r15d,%eax
  push   %r12
  mov    %r9d,%r12d
  push   %rbp
  mov    %rdi,%rbp
  lea    0x0(,%r15,8),%edi
  push   %rbx
  mov    %rdx,%rbx
  sub    $0x78,%rsp
  mov    %rsi,0x18(%rsp)
  mov    %ecx,0x64(%rsp)
  mov    %eax,0x44(%rsp)
  mov    %r15,0x20(%rsp)
  call   <malloc@plt>
  mov    %rax,0x8(%rsp)
  test   %r14d,%r14d
  jle    L38
  mov    %rax,%rsi
  movslq %r12d,%rax
  mov    %r15,%r13
  movq   $0x0,0x48(%rsp)
  mov    %rax,0x58(%rsp)
  lea    -0x1(%r15),%eax
  mov    %r13d,%r14d
  shl    $0x3,%r15
  lea    0x8(,%rax,8),%rax
  and    $0xfffffffe,%r14d
  pxor   %xmm4,%xmm4
  movq   $0x0,0x10(%rsp)
  mov    %rax,0x50(%rsp)
  add    %rsi,%rax
  mov    %rax,%r11
  mov    %r13d,%eax
  movl   $0x0,0x60(%rsp)
  shr    %eax
  lea    -0x1(%rax),%r12d
  add    $0x1,%r12
  shl    $0x4,%r12
  lea    (%r12,%rsi,1),%rax
  mov    %rax,0x68(%rsp)
  movslq %r14d,%rax
  mov    %rax,0x38(%rsp)
  lea    (%rsi,%rax,8),%rax
  mov    %rax,0x30(%rsp)
L79:
  test   %r13d,%r13d
  jle    L56
  mov    0x50(%rsp),%rdx
  mov    0x8(%rsp),%rdi
  xor    %esi,%esi
  mov    %r11,0x28(%rsp)
  call   <memset@plt>
  mov    0x28(%rsp),%r11
  pxor   %xmm4,%xmm4
L56:
  mov    0x48(%rsp),%rdi
  movl   $0x4,0x28(%rsp)
  xor    %r10d,%r10d
  movapd %xmm4,%xmm3
  lea    0x0(%rbp,%rdi,8),%r8
L134:
  test   %r13d,%r13d
  jle    L110
  movslq %r10d,%rax
  mov    0x8(%rsp),%r9
  mov    %r10d,%ecx
  lea    (%rbx,%rax,8),%rsi
  nopl   0x0(%rax,%rax,1)
L69:
  cmp    $0x1,%r13d
  je     L28
  xor    %eax,%eax
  movapd %xmm4,%xmm0
  nopl   0x0(%rax,%rax,1)
L27:
  movupd (%r8,%rax,1),%xmm2
  movupd (%rsi,%rax,1),%xmm5
  add    $0x10,%rax
  mulpd  %xmm5,%xmm2
  addsd  %xmm2,%xmm0
  unpckhpd %xmm2,%xmm2
  addsd  %xmm2,%xmm0
  cmp    %r12,%rax
  jne    L27
  movslq %r14d,%rax
  cmp    %r13d,%r14d
  je     L98
L37:
  lea    (%rcx,%rax,1),%edx
  add    %rdi,%rax
  movslq %edx,%rdx
  movsd  (%rbx,%rdx,8),%xmm1
  mulsd  0x0(%rbp,%rax,8),%xmm1
  addsd  %xmm1,%xmm0
L98:
  movsd  (%r9),%xmm1
  add    $0x8,%r9
  addsd  %xmm0,%xmm3
  add    %r13d,%ecx
  add    %r15,%rsi
  addsd  %xmm0,%xmm1
  movsd  %xmm1,-0x8(%r9)
  cmp    %r11,%r9
  jne    L69
L110:
  add    0x20(%rsp),%rdi
  add    %r15,%r8
  add    0x44(%rsp),%r10d
  subl   $0x1,0x28(%rsp)
  jne    L134
  test   %r13d,%r13d
  jle    L62
  mov    0x10(%rsp),%rax
  mov    0x8(%rsp),%rsi
  mov    0x18(%rsp),%rdi
  shl    $0x3,%rax
  lea    0x8(%rsi),%rcx
  lea    (%rdi,%rax,1),%rdx
  cmp    %rdx,%rcx
  je     L94
  cmp    $0x1,%r13d
  je     L94
  sub    %rsi,%rdi
  movapd %xmm3,%xmm1
  mov    0x68(%rsp),%rcx
  mov    %rdi,%rdx
  unpcklpd %xmm1,%xmm1
  add    %rax,%rdx
  mov    %rsi,%rax
  xchg   %ax,%ax
L76:
  movupd (%rax),%xmm0
  divpd  %xmm1,%xmm0
  movups %xmm0,(%rdx,%rax,1)
  add    $0x10,%rax
  cmp    %rcx,%rax
  jne    L76
  cmp    %r13d,%r14d
  je     L62
  mov    0x30(%rsp),%rdi
  mov    0x38(%rsp),%rax
  add    0x10(%rsp),%rax
  movsd  (%rdi),%xmm0
  mov    0x18(%rsp),%rdi
  divsd  %xmm3,%xmm0
  movsd  %xmm0,(%rdi,%rax,8)
L62:
  addl   $0x1,0x60(%rsp)
  mov    0x20(%rsp),%rcx
  mov    0x58(%rsp),%rdi
  add    %rcx,0x10(%rsp)
  add    %rdi,0x48(%rsp)
  mov    0x60(%rsp),%eax
  cmp    %eax,0x64(%rsp)
  jne    L79
L38:
  mov    0x8(%rsp),%rdi
  add    $0x78,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1070 <free@plt>
  nopw   0x0(%rax,%rax,1)
L28:
  movapd %xmm4,%xmm0
  xor    %eax,%eax
  jmp    L37
L94:
  mov    0x8(%rsp),%rcx
  mov    0x18(%rsp),%rdx
  sub    %rcx,%rdx
  add    %rax,%rdx
  mov    %rcx,%rax
L59:
  movsd  (%rax),%xmm0
  divsd  %xmm3,%xmm0
  movsd  %xmm0,(%rdx,%rax,1)
  add    $0x8,%rax
  cmp    %r11,%rax
  jne    L59
  jmp    L62
```

assistant: ```c
void ancestralGamma(double *x3, double *ancestralBuffer, double *diagptable, const int n, const int numStates, const int gammaStates) {
  int i;
  const int statesSquare = numStates * numStates;
  double *term = (double *)malloc(sizeof(double) * numStates);
  for (i = 0; i < n; i++) {
    double sum = 0.0, *_v = &x3[gammaStates * i], *ancestral = &ancestralBuffer[numStates * i];
    int k, j, l;
    for (l = 0; l < numStates; l++)
      term[l] = 0.0;
    for (k = 0; k < 4; k++) {
      double *v = &(_v[numStates * k]);
      for (l = 0; l < numStates; l++) {
        double al = 0.0;
        for (j = 0; j < numStates; j++)
          al += v[j] * diagptable[k * statesSquare + l * numStates + j];
        term[l] += al;
        sum += al;
      }
    }
    for (l = 0; l < numStates; l++)
      ancestral[l] = term[l] / sum;
  }
  free(term);
}
```