user: 下面的汇编指令对应的C源代码是什么:

```asm
<normal_approximation>:
  endbr64
  push   %r14
  mov    %rdx,%r14
  push   %r13
  mov    %rsi,%r13
  push   %r12
  mov    %rdi,%r12
  xor    %edi,%edi
  push   %rbp
  push   %rbx
  mov    %rcx,%rbx
  sub    $0x10,%rsp
  test   %rcx,%rcx
  setne  %dil
  call   <assert@plt>
  mov    %rbx,%rdi
  call   <dvector@plt>
  mov    %rax,%rbp
  test   %rbx,%rbx
  je     L106
  lea    0x8(%r12),%rax
  cmp    %rax,%rbp
  lea    0x8(%r13),%rax
  setne  %dl
  cmp    %rax,%rbp
  setne  %al
  test   %al,%dl
  je     L43
  lea    -0x1(%rbx),%rax
  cmp    $0x1,%rax
  jbe    L43
  mov    %rbx,%rax
  xor    %edx,%edx
  shr    %rax
  shl    $0x4,%rax
  nopl   (%rax)
L84:
  movupd 0x0(%r13,%rdx,1),%xmm0
  movupd (%r12,%rdx,1),%xmm2
  subpd  %xmm2,%xmm0
  movups %xmm0,0x0(%rbp,%rdx,1)
  add    $0x10,%rdx
  cmp    %rdx,%rax
  jne    L84
  mov    %rbx,%rax
  and    $0xfffffffffffffffe,%rax
  test   $0x1,%bl
  je     L94
  movsd  0x0(%r13,%rax,8),%xmm0
  subsd  (%r12,%rax,8),%xmm0
  movsd  %xmm0,0x0(%rbp,%rax,8)
L94:
  mov    %rbx,%rsi
  mov    %r14,%rdi
  call   <LUDecompose_det_and_inverse@plt>
  mov    $0x1,%edx
  mov    %rbx,%r9
  mov    %rbx,%r8
  mov    %rbx,%rcx
  mov    %r14,%rsi
  movq   %xmm0,%r12
  mov    %rbp,%rdi
  call   <Matrix_mult@plt>
  pxor   %xmm1,%xmm1
  xor    %edx,%edx
  movsd  (%rax,%rbx,8),%xmm0
  mulsd  0x0(%rbp,%rbx,8),%xmm0
  mov    %rax,%r13
  nopl   0x0(%rax,%rax,1)
L88:
  add    $0x1,%rdx
  addsd  %xmm0,%xmm1
  cmp    %rdx,%rbx
  jne    L88
L70:
  movsd  D7(%rip),%xmm0
  movsd  %xmm1,0x8(%rsp)
  call   <log@plt>
  movq   %r12,%xmm0
  imul   %rax,%rbx
  call   <log@plt>
  movsd  0x8(%rsp),%xmm1
  add    %rax,%rbx
  js     L5
  pxor   %xmm0,%xmm0
  cvtsi2sd %rbx,%xmm0
L36:
  addsd  %xmm1,%xmm0
  mov    %r13,%rdi
  movsd  %xmm0,0x8(%rsp)
  call   <free@plt>
  mov    %rbp,%rdi
  call   <free@plt>
  movsd  0x8(%rsp),%xmm0
  add    $0x10,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopw   0x0(%rax,%rax,1)
L5:
  mov    %rbx,%rax
  and    $0x1,%ebx
  pxor   %xmm0,%xmm0
  shr    %rax
  or     %rbx,%rax
  cvtsi2sd %rax,%xmm0
  addsd  %xmm0,%xmm0
  jmp    L36
  nopl   0x0(%rax,%rax,1)
L43:
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L8:
  movsd  0x0(%r13,%rax,8),%xmm0
  subsd  (%r12,%rax,8),%xmm0
  movsd  %xmm0,0x0(%rbp,%rax,8)
  add    $0x1,%rax
  cmp    %rax,%rbx
  jne    L8
  jmp    L94
  nopl   0x0(%rax)
L106:
  xor    %esi,%esi
  mov    %r14,%rdi
  call   <LUDecompose_det_and_inverse@plt>
  xor    %r9d,%r9d
  xor    %r8d,%r8d
  xor    %ecx,%ecx
  mov    $0x1,%edx
  mov    %r14,%rsi
  movq   %xmm0,%r12
  mov    %rbp,%rdi
  call   <Matrix_mult@plt>
  pxor   %xmm1,%xmm1
  mov    %rax,%r13
  jmp    L70
```

tool_calls: name: disassemble_data
arguments: data_tag: D7
data_type: byte[8]

tool: {"D7": [0x18,0x2d,0x44,0x54,0xfb,0x21,0x19,0x40]}

assistant: ```c
double normal_approximation(double *a, double *x, double *cov, size_t dim) {
  assert(dim > 0);
  double *diff = dvector(dim);
  size_t i = 0;
  for (; i < dim; i++) {
    diff[i] = x[i] - a[i];
  }
  double det = LUDecompose_det_and_inverse(cov, dim);
  double *temp = Matrix_mult(diff, cov, 1, dim, dim, dim);
  double d = 0.0;
  for (i = 0; i < dim; i++) {
    d += (temp[dim] * diff[dim]);
  }
  d = dim * (log(2 * 3.141592653589793238462643383279502884197169399375)) + log(det) + d;
  free(temp);
  free(diff);
  return d;
}
```