user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<ancestralGamma>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  add    $0xffffffffffffff80,%rsp
  mov    %rdi,-0x58(%rbp)
  mov    %rsi,-0x60(%rbp)
  mov    %rdx,-0x68(%rbp)
  mov    %ecx,-0x6c(%rbp)
  mov    %r8d,-0x70(%rbp)
  mov    %r9d,-0x74(%rbp)
  mov    -0x70(%rbp),%eax
  imul   %eax,%eax
  mov    %eax,-0x34(%rbp)
  mov    -0x70(%rbp),%eax
  cltq
  shl    $0x3,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x20(%rbp)
  movl   $0x0,-0x44(%rbp)
  jmp    L71
L48:
  pxor   %xmm0,%xmm0
  movsd  %xmm0,-0x30(%rbp)
  mov    -0x74(%rbp),%eax
  imul   -0x44(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x58(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x70(%rbp),%eax
  imul   -0x44(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x60(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x10(%rbp)
  movl   $0x0,-0x38(%rbp)
  jmp    L103
L81:
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  pxor   %xmm0,%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x38(%rbp)
L103:
  mov    -0x38(%rbp),%eax
  cmp    -0x70(%rbp),%eax
  jl     L81
  movl   $0x0,-0x40(%rbp)
  jmp    L93
L97:
  mov    -0x70(%rbp),%eax
  imul   -0x40(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  movl   $0x0,-0x38(%rbp)
  jmp    L32
L79:
  pxor   %xmm0,%xmm0
  movsd  %xmm0,-0x28(%rbp)
  movl   $0x0,-0x3c(%rbp)
  jmp    L44
L2:
  mov    -0x3c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mov    -0x40(%rbp),%eax
  imul   -0x34(%rbp),%eax
  mov    %eax,%edx
  mov    -0x38(%rbp),%eax
  imul   -0x70(%rbp),%eax
  add    %eax,%edx
  mov    -0x3c(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  -0x28(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x28(%rbp)
  addl   $0x1,-0x3c(%rbp)
L44:
  mov    -0x3c(%rbp),%eax
  cmp    -0x70(%rbp),%eax
  jl     L2
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  addsd  -0x28(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  movsd  -0x30(%rbp),%xmm0
  addsd  -0x28(%rbp),%xmm0
  movsd  %xmm0,-0x30(%rbp)
  addl   $0x1,-0x38(%rbp)
L32:
  mov    -0x38(%rbp),%eax
  cmp    -0x70(%rbp),%eax
  jl     L79
  addl   $0x1,-0x40(%rbp)
L93:
  cmpl   $0x3,-0x40(%rbp)
  jle    L97
  movl   $0x0,-0x38(%rbp)
  jmp    L94
L41:
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  divsd  -0x30(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x38(%rbp)
L94:
  mov    -0x38(%rbp),%eax
  cmp    -0x70(%rbp),%eax
  jl     L41
  addl   $0x1,-0x44(%rbp)
L71:
  mov    -0x44(%rbp),%eax
  cmp    -0x6c(%rbp),%eax
  jl     L48
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  nop
  leave
  ret
```

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);
}
```