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

```asm
<test_dobldobl_multiplicity_structure>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    %edi,-0x54(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  movsd  D43(%rip),%xmm0
  movsd  %xmm0,-0x30(%rbp)
  mov    -0x54(%rbp),%eax
  add    $0x1,%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x28(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r10
  mov    $0x0,%r11d
  movslq %eax,%rdx
  mov    %rdx,%r8
  mov    $0x0,%r9d
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%ecx
  mov    $0x0,%edx
  div    %rcx
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L20:
  cmp    %rdx,%rsp
  je     L0
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L20
L0:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L46
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L46:
  mov    %rsp,%rax
  add    $0x3,%rax
  shr    $0x2,%rax
  shl    $0x2,%rax
  mov    %rax,-0x20(%rbp)
  lea    D28(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    $0x0,%eax
  call   <syscon_read_dobldobl_system@plt>
  mov    %eax,-0x34(%rbp)
  lea    -0x44(%rbp),%rax
  mov    %rax,%rdi
  call   <syscon_number_of_dobldobl_polynomials@plt>
  mov    %eax,-0x34(%rbp)
  mov    -0x44(%rbp),%eax
  mov    %eax,%esi
  lea    D48(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%eax
  call   <solcon_read_dobldobl_solutions@plt>
  mov    %eax,-0x34(%rbp)
  lea    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <solcon_number_of_dobldobl_solutions@plt>
  mov    %eax,-0x34(%rbp)
  mov    -0x40(%rbp),%eax
  mov    %eax,%esi
  lea    D59(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    -0x44(%rbp),%rax
  mov    %rax,%rdi
  call   <solcon_dimension_of_dobldobl_solutions@plt>
  mov    %eax,-0x34(%rbp)
  mov    -0x44(%rbp),%eax
  mov    %eax,%esi
  lea    D5(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    -0x20(%rbp),%rcx
  lea    -0x3c(%rbp),%rdx
  mov    -0x30(%rbp),%rsi
  mov    -0x54(%rbp),%eax
  movq   %rsi,%xmm0
  mov    $0x1,%esi
  mov    %eax,%edi
  call   <dobldobl_multiplicity_structure@plt>
  mov    %eax,-0x34(%rbp)
  mov    -0x3c(%rbp),%eax
  mov    %eax,%esi
  lea    D41(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D14(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movl   $0x0,-0x38(%rbp)
  jmp    L54
L11:
  mov    -0x20(%rbp),%rax
  mov    -0x38(%rbp),%edx
  movslq %edx,%rdx
  mov    (%rax,%rdx,4),%eax
  mov    %eax,%esi
  lea    D7(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  addl   $0x1,-0x38(%rbp)
L54:
  mov    -0x54(%rbp),%eax
  cmp    -0x38(%rbp),%eax
  jge    L11
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    %rbx,%rsp
  nop
  mov    -0x18(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L3
  call   <__stack_chk_fail@plt>
L3:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: disassemble_data
arguments: label: D43
type: byte[8]
name: disassemble_data
arguments: label: D28
type: string
name: disassemble_data
arguments: label: D48
type: string
name: disassemble_data
arguments: label: D59
type: string
name: disassemble_data
arguments: label: D5
type: string
name: disassemble_data
arguments: label: D41
type: string
name: disassemble_data
arguments: label: D14
type: string
name: disassemble_data
arguments: label: D7
type: string

tool: {"D43": [0x3a,0x8c,0x30,0xe2,0x8e,0x79,0x45,0x3e]}

tool: D28: 
Testing with dobldobl arithmetic ...

tool: D48: The system container has %d polynomials.


tool: D59: The solution container has size %d.


tool: D5: The solutions in the container have dimension %d.


tool: D41: The multiplicity : %d.


tool: D14: Values of the Hilbert function :

tool: D7:  %d

assistant: ```c
void test_dobldobl_multiplicity_structure(int order) {
  const double tol = 1.0e-8;
  int fail, dim, len, mult;
  int hilb[order + 1];
  printf("\nTesting with dobldobl arithmetic ...\n");
  fail = syscon_read_dobldobl_system();
  fail = syscon_number_of_dobldobl_polynomials(&dim);
  printf("The system container has %d polynomials.\n", dim);
  fail = solcon_read_dobldobl_solutions();
  fail = solcon_number_of_dobldobl_solutions(&len);
  printf("The solution container has size %d.\n", len);
  fail = solcon_dimension_of_dobldobl_solutions(&dim);
  printf("The solutions in the container have dimension %d.\n", dim);
  fail = dobldobl_multiplicity_structure(order, 1, tol, &mult, hilb);
  printf("The multiplicity : %d.\n", mult);
  printf("Values of the Hilbert function :");
  int k;
  for (k = 0; k < order + 1; k++)
    printf(" %d", hilb[k]);
  printf("\n");
}
```