user: What would the C source look like for the assembly code provided here?

```asm
<normal_approximation>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    %rdi,-0x48(%rbp)
  mov    %rsi,-0x50(%rbp)
  mov    %rdx,-0x58(%rbp)
  mov    %rcx,-0x60(%rbp)
  cmpq   $0x0,-0x60(%rbp)
  setne  %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0x60(%rbp),%rax
  mov    %rax,%rdi
  call   <dvector@plt>
  mov    %rax,-0x28(%rbp)
  movq   $0x0,-0x38(%rbp)
  jmp    L45
L19:
  mov    -0x38(%rbp),%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mov    -0x38(%rbp),%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mov    -0x38(%rbp),%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  subsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  addq   $0x1,-0x38(%rbp)
L45:
  mov    -0x38(%rbp),%rax
  cmp    -0x60(%rbp),%rax
  jb     L19
  mov    -0x60(%rbp),%rdx
  mov    -0x58(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <LUDecompose_det_and_inverse@plt>
  movq   %xmm0,%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x60(%rbp),%rdi
  mov    -0x60(%rbp),%rcx
  mov    -0x60(%rbp),%rdx
  mov    -0x58(%rbp),%rsi
  mov    -0x28(%rbp),%rax
  mov    %rdi,%r9
  mov    %rcx,%r8
  mov    %rdx,%rcx
  mov    $0x1,%edx
  mov    %rax,%rdi
  call   <Matrix_mult@plt>
  mov    %rax,-0x18(%rbp)
  pxor   %xmm0,%xmm0
  movsd  %xmm0,-0x30(%rbp)
  movq   $0x0,-0x38(%rbp)
  jmp    L6
L56:
  mov    -0x60(%rbp),%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mov    -0x60(%rbp),%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  -0x30(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x30(%rbp)
  addq   $0x1,-0x38(%rbp)
L6:
  mov    -0x38(%rbp),%rax
  cmp    -0x60(%rbp),%rax
  jb     L56
  mov    D0(%rip),%rax
  movq   %rax,%xmm0
  call   <log@plt>
  imul   -0x60(%rbp),%rax
  mov    %rax,%rbx
  mov    -0x20(%rbp),%rax
  movq   %rax,%xmm0
  call   <log@plt>
  add    %rbx,%rax
  test   %rax,%rax
  js     L8
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  jmp    L7
L8:
  mov    %rax,%rdx
  shr    %rdx
  and    $0x1,%eax
  or     %rax,%rdx
  pxor   %xmm0,%xmm0
  cvtsi2sd %rdx,%xmm0
  addsd  %xmm0,%xmm0
L7:
  movsd  -0x30(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x30(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  movsd  -0x30(%rbp),%xmm0
  movq   %xmm0,%rax
  movq   %rax,%xmm0
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: parse_data
arguments: tag: D0
type: byte[8]

tool: {"D0": [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;
}
```