user: 下面的汇编指令对应的C源代码是什么:

```asm
<l_coeffs2poly>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x68,%rsp
  mov    %rdi,-0x78(%rbp)
  movsd  %xmm0,-0x80(%rbp)
  movsd  %xmm1,-0x88(%rbp)
  mov    %esi,-0x8c(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  mov    -0x8c(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    -0x8c(%rbp),%eax
  add    $0x1,%eax
  imul   %edx,%eax
  mov    %eax,%edx
  sub    $0x1,%rdx
  mov    %rdx,-0x58(%rbp)
  mov    %eax,%edx
  mov    %rdx,%r10
  mov    $0x0,%r11d
  mov    %eax,%edx
  mov    %rdx,%r8
  mov    $0x0,%r9d
  mov    %eax,%eax
  lea    0x0(,%rax,8),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L107:
  cmp    %rdx,%rsp
  je     L42
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L107
L42:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L1
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L1:
  mov    %rsp,%rax
  add    $0x7,%rax
  shr    $0x3,%rax
  shl    $0x3,%rax
  mov    %rax,-0x50(%rbp)
  movsd  -0x88(%rbp),%xmm0
  mov    -0x80(%rbp),%rcx
  mov    -0x8c(%rbp),%edx
  mov    -0x50(%rbp),%rax
  movapd %xmm0,%xmm1
  movq   %rcx,%xmm0
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <l_coeff@plt>
  mov    -0x8c(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,%edx
  sub    $0x1,%rdx
  mov    %rdx,-0x48(%rbp)
  mov    %eax,%edx
  mov    %rdx,%r14
  mov    $0x0,%r15d
  mov    %eax,%edx
  mov    %rdx,%r12
  mov    $0x0,%r13d
  mov    %eax,%eax
  lea    0x0(,%rax,8),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%edi
  mov    $0x0,%edx
  div    %rdi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L64:
  cmp    %rdx,%rsp
  je     L70
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L64
L70:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L67
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L67:
  mov    %rsp,%rax
  add    $0x7,%rax
  shr    $0x3,%rax
  shl    $0x3,%rax
  mov    %rax,-0x40(%rbp)
  mov    -0x78(%rbp),%rax
  movsd  (%rax),%xmm0
  mov    -0x40(%rbp),%rax
  movsd  %xmm0,(%rax)
  movl   $0x1,-0x68(%rbp)
  jmp    L28
L90:
  mov    -0x8c(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    -0x68(%rbp),%eax
  imul   %edx,%eax
  mov    %eax,%eax
  lea    0x0(,%rax,8),%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x60(%rbp)
  movl   $0x0,-0x64(%rbp)
  jmp    L22
L72:
  mov    -0x68(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x78(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mov    -0x60(%rbp),%rax
  lea    0x8(%rax),%rdx
  mov    %rdx,-0x60(%rbp)
  movsd  (%rax),%xmm0
  mulsd  %xmm0,%xmm1
  mov    -0x40(%rbp),%rax
  mov    -0x64(%rbp),%edx
  movslq %edx,%rdx
  movsd  (%rax,%rdx,8),%xmm0
  addsd  %xmm1,%xmm0
  mov    -0x40(%rbp),%rax
  mov    -0x64(%rbp),%edx
  movslq %edx,%rdx
  movsd  %xmm0,(%rax,%rdx,8)
  addl   $0x1,-0x64(%rbp)
L22:
  mov    -0x64(%rbp),%eax
  cmp    -0x68(%rbp),%eax
  jle    L72
  mov    -0x68(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x78(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mov    -0x60(%rbp),%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm1,%xmm0
  mov    -0x60(%rbp),%rax
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x68(%rbp)
L28:
  mov    -0x68(%rbp),%eax
  cmp    %eax,-0x8c(%rbp)
  jae    L90
  mov    -0x8c(%rbp),%eax
  add    $0x1,%eax
  lea    0x0(,%rax,8),%edx
  mov    -0x40(%rbp),%rcx
  mov    -0x78(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    %rbx,%rsp
  nop
  mov    -0x38(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L12
  call   <__stack_chk_fail@plt>
L12:
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
```

assistant: ```c
void l_coeffs2poly(double *coeffs, double CENTER, double WIDTH, unsigned int order) {
  double CC[(order + 1) * (order + 1)];
  l_coeff(CC, order, CENTER, WIDTH);
  double result[order + 1];
  result[0] = coeffs[0];
  for (int n = 1; n <= order; ++n) {
    double *r = CC + n * (order + 1);
    for (int i = 0; i <= n; ++i)
      result[i] += coeffs[n] * *r++;
    *r = coeffs[n] * *r;
  }
  memcpy(coeffs, result, (order + 1) * sizeof(double));
}
```