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

```asm
<dradf4>:
  endbr64
  push   %r15
  mov    %rcx,%rax
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %esi,%ebx
  mov    0x38(%rsp),%rcx
  mov    %esi,-0x3c(%rsp)
  imul   %edi,%esi
  mov    %rdx,-0x20(%rsp)
  lea    (%rsi,%rsi,1),%edx
  mov    %esi,-0x24(%rsp)
  mov    %edx,%r11d
  mov    %edx,-0x8(%rsp)
  add    %esi,%r11d
  test   %ebx,%ebx
  jle    L5
  movslq %edi,%rbx
  movslq %r11d,%r11
  movslq -0x24(%rsp),%r12
  mov    %edi,-0x44(%rsp)
  mov    %rcx,0x38(%rsp)
  mov    -0x3c(%rsp),%ecx
  lea    (%rdi,%rdi,1),%r14d
  xor    %esi,%esi
  lea    0x0(,%rbx,8),%r13
  mov    -0x20(%rsp),%rbx
  xor    %r10d,%r10d
  sub    %r11,%r12
  lea    0x0(,%r11,8),%rbp
  lea    0x0(,%rdi,4),%r15d
  lea    (%rbx,%rbp,1),%rdx
  movslq -0x8(%rsp),%rbx
  neg    %rbp
  sub    %r11,%rbx
  nopl   (%rax)
L40:
  movsd  (%rdx,%r12,8),%xmm1
  addsd  (%rdx),%xmm1
  movslq %esi,%rdi
  add    $0x1,%r10d
  movsd  (%rdx,%rbp,1),%xmm0
  addsd  (%rdx,%rbx,8),%xmm0
  movapd %xmm1,%xmm2
  addsd  %xmm0,%xmm2
  subsd  %xmm1,%xmm0
  movsd  %xmm2,(%rax,%rdi,8)
  lea    (%r15,%rsi,1),%edi
  add    %r14d,%esi
  movslq %edi,%r11
  movslq %esi,%rsi
  movsd  %xmm0,-0x8(%rax,%r11,8)
  movsd  (%rdx,%rbp,1),%xmm0
  subsd  (%rdx,%rbx,8),%xmm0
  movsd  %xmm0,-0x8(%rax,%rsi,8)
  movsd  (%rdx),%xmm0
  subsd  (%rdx,%r12,8),%xmm0
  add    %r13,%rdx
  movsd  %xmm0,(%rax,%rsi,8)
  mov    %edi,%esi
  cmp    %r10d,%ecx
  jne    L40
  mov    -0x44(%rsp),%edi
  mov    0x38(%rsp),%rcx
L5:
  cmp    $0x1,%edi
  jle    L22
  cmp    $0x2,%edi
  je     L63
  mov    %edi,%ebx
  mov    -0x3c(%rsp),%esi
  and    $0x1,%ebx
  mov    %ebx,-0x4(%rsp)
  test   %esi,%esi
  jle    L22
  movslq %edi,%rbx
  mov    -0x20(%rsp),%rsi
  lea    (%rdi,%rdi,1),%r14d
  movl   $0x0,-0x40(%rsp)
  mov    %rbx,-0x18(%rsp)
  shl    $0x3,%rbx
  mov    %rbx,-0x30(%rsp)
  movslq -0x24(%rsp),%rbx
  mov    %rsi,%r11
  mov    %r14d,-0x28(%rsp)
  mov    %rbx,%r10
  lea    (%rbx,%rbx,2),%rdx
  lea    (%rsi,%rbx,8),%rbp
  mov    %rbx,-0x10(%rsp)
  shl    $0x4,%r10
  lea    (%rsi,%rdx,8),%rbx
  movl   $0x0,-0x44(%rsp)
  add    %rsi,%r10
  movslq %r14d,%rsi
  mov    %rsi,-0x38(%rsp)
  nopl   0x0(%rax,%rax,1)
L36:
  mov    -0x40(%rsp),%esi
  mov    -0x38(%rsp),%r12
  lea    0x0(,%rsi,4),%edx
  movslq %edx,%rsi
  add    -0x28(%rsp),%edx
  movslq %edx,%rdx
  lea    (%rax,%rsi,8),%r15
  add    %r12,%rsi
  lea    (%rax,%rdx,8),%r14
  add    %r12,%rdx
  lea    (%rax,%rsi,8),%r13
  xor    %esi,%esi
  lea    (%rax,%rdx,8),%r12
  mov    $0x2,%edx
  nop
L17:
  movsd  -0x10(%r8,%rdx,8),%xmm4
  movsd  -0x8(%r8,%rdx,8),%xmm1
  movsd  0x0(%rbp,%rdx,8),%xmm2
  movsd  -0x8(%rbp,%rdx,8),%xmm0
  movapd %xmm4,%xmm3
  movapd %xmm1,%xmm5
  movsd  (%r10,%rdx,8),%xmm6
  movsd  (%rbx,%rdx,8),%xmm8
  mulsd  %xmm0,%xmm3
  mulsd  %xmm2,%xmm4
  mulsd  %xmm1,%xmm0
  movsd  -0x8(%r9,%rdx,8),%xmm1
  mulsd  %xmm2,%xmm5
  movsd  -0x10(%r9,%rdx,8),%xmm2
  movapd %xmm1,%xmm7
  mulsd  %xmm6,%xmm7
  subsd  %xmm0,%xmm4
  movsd  -0x8(%r10,%rdx,8),%xmm0
  addsd  %xmm5,%xmm3
  movapd %xmm2,%xmm5
  mulsd  %xmm0,%xmm5
  mulsd  %xmm6,%xmm2
  movsd  -0x8(%rbx,%rdx,8),%xmm6
  mulsd  %xmm1,%xmm0
  movsd  -0x10(%rcx,%rdx,8),%xmm1
  addsd  %xmm7,%xmm5
  movsd  -0x8(%rcx,%rdx,8),%xmm7
  subsd  %xmm0,%xmm2
  movapd %xmm1,%xmm0
  movapd %xmm7,%xmm9
  mulsd  %xmm6,%xmm0
  mulsd  %xmm8,%xmm1
  mulsd  %xmm7,%xmm6
  movapd %xmm4,%xmm7
  mulsd  %xmm8,%xmm9
  subsd  %xmm6,%xmm1
  movapd %xmm3,%xmm6
  addsd  %xmm9,%xmm0
  addsd  %xmm1,%xmm7
  subsd  %xmm1,%xmm4
  movsd  (%r11,%rdx,8),%xmm1
  addsd  %xmm0,%xmm6
  subsd  %xmm3,%xmm0
  movapd %xmm1,%xmm8
  subsd  %xmm2,%xmm1
  addsd  %xmm2,%xmm8
  movsd  -0x8(%r11,%rdx,8),%xmm2
  movapd %xmm2,%xmm3
  subsd  %xmm5,%xmm2
  addsd  %xmm5,%xmm3
  movapd %xmm6,%xmm5
  addsd  %xmm3,%xmm5
  subsd  %xmm6,%xmm3
  movsd  %xmm5,-0x8(%r15,%rdx,8)
  movapd %xmm7,%xmm5
  subsd  %xmm8,%xmm7
  addsd  %xmm8,%xmm5
  movsd  %xmm5,(%r15,%rdx,8)
  movapd %xmm2,%xmm5
  addsd  %xmm4,%xmm2
  subsd  %xmm4,%xmm5
  movsd  %xmm5,-0x18(%r14,%rsi,1)
  movapd %xmm0,%xmm5
  addsd  %xmm1,%xmm0
  subsd  %xmm1,%xmm5
  movsd  %xmm5,-0x10(%r14,%rsi,1)
  movsd  %xmm2,-0x8(%r13,%rdx,8)
  movsd  %xmm0,0x0(%r13,%rdx,8)
  add    $0x2,%rdx
  movsd  %xmm3,-0x18(%r12,%rsi,1)
  movsd  %xmm7,-0x10(%r12,%rsi,1)
  sub    $0x10,%rsi
  cmp    %edx,%edi
  jg     L17
  mov    -0x30(%rsp),%rsi
  addl   $0x1,-0x44(%rsp)
  add    %edi,-0x40(%rsp)
  mov    -0x44(%rsp),%edx
  add    %rsi,%rbp
  add    %rsi,%r10
  add    %rsi,%rbx
  add    %rsi,%r11
  cmp    %edx,-0x3c(%rsp)
  jne    L36
  mov    -0x4(%rsp),%edx
  test   %edx,%edx
  jne    L22
  mov    -0x24(%rsp),%ecx
  mov    -0x8(%rsp),%r9d
  lea    -0x1(%rcx,%rdi,1),%esi
  shl    $0x2,%edi
  add    %esi,%r9d
L103:
  mov    -0x18(%rsp),%rbx
  mov    -0x10(%rsp),%r10
  movslq %esi,%r11
  movslq %r9d,%rsi
  mov    -0x20(%rsp),%rdx
  mov    %r11,%r9
  movslq %edi,%rdi
  xor    %ecx,%ecx
  sub    %rbx,%r10
  sub    %rbx,%r9
  sub    %rbx,%rsi
  shl    $0x3,%rdi
  lea    0x0(,%rbx,8),%r8
  add    %r11,%r10
  mov    -0x3c(%rsp),%ebx
  movsd  D5(%rip),%xmm4
  movsd  D4(%rip),%xmm3
  mov    -0x38(%rsp),%r11
  add    %r8,%rdx
  add    %r8,%rax
  nopl   0x0(%rax)
L20:
  movsd  (%rdx,%rsi,8),%xmm2
  movsd  (%rdx,%r9,8),%xmm0
  add    $0x1,%ecx
  movapd %xmm0,%xmm1
  subsd  %xmm2,%xmm0
  addsd  %xmm2,%xmm1
  movsd  -0x8(%rdx),%xmm2
  mulsd  %xmm3,%xmm0
  mulsd  %xmm4,%xmm1
  addsd  %xmm0,%xmm2
  movsd  %xmm2,-0x8(%rax)
  movsd  -0x8(%rdx),%xmm2
  subsd  %xmm0,%xmm2
  movapd %xmm1,%xmm0
  movsd  %xmm2,-0x8(%rax,%r11,8)
  subsd  (%rdx,%r10,8),%xmm0
  movsd  %xmm0,(%rax)
  addsd  (%rdx,%r10,8),%xmm1
  add    %r8,%rdx
  movsd  %xmm1,(%rax,%r11,8)
  add    %rdi,%rax
  cmp    %ecx,%ebx
  jg     L20
L22:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L63:
  mov    -0x3c(%rsp),%ecx
  test   %ecx,%ecx
  jle    L22
  movslq -0x24(%rsp),%rcx
  mov    -0x8(%rsp),%r9d
  movq   $0x2,-0x18(%rsp)
  mov    $0x8,%edi
  movq   $0x4,-0x38(%rsp)
  lea    0x1(%rcx),%esi
  mov    %rcx,-0x10(%rsp)
  add    %esi,%r9d
  jmp    L103
```

tool_calls: name: unpack_data
arguments: data_label: D5
type_guessed: byte[8]
name: unpack_data
arguments: data_label: D4
type_guessed: byte[8]

tool: {"D5": [0xcd,0x3b,0x7f,0x66,0x9e,0xa0,0xe6,0xbf]}

tool: {"D4": [0xcd,0x3b,0x7f,0x66,0x9e,0xa0,0xe6,0x3f]}

assistant: ```c
void dradf4(int ido, int l1, double *cc, double *ch, double *wa1, double *wa2, double *wa3) {
  static double hsqt2 = .70710678118654752440084436210485;
  int i, k, t0, t1, t2, t3, t4, t5, t6;
  double ci2, ci3, ci4, cr2, cr3, cr4, ti1, ti2, ti3, ti4, tr1, tr2, tr3, tr4;
  t0 = l1 * ido;
  t1 = t0;
  t4 = t1 << 1;
  t2 = t1 + (t1 << 1);
  t3 = 0;
  for (k = 0; k < l1; k++) {
    tr1 = cc[t1] + cc[t2];
    tr2 = cc[t3] + cc[t4];
    ch[t5 = t3 << 2] = tr1 + tr2;
    ch[(ido << 2) + t5 - 1] = tr2 - tr1;
    ch[(t5 += (ido << 1)) - 1] = cc[t3] - cc[t4];
    ch[t5] = cc[t2] - cc[t1];
    t1 += ido;
    t2 += ido;
    t3 += ido;
    t4 += ido;
  }
  if (ido < 2)
    return;
  if (ido == 2)
    goto L105;
  t1 = 0;
  for (k = 0; k < l1; k++) {
    t2 = t1;
    t4 = t1 << 2;
    t5 = (t6 = ido << 1) + t4;
    for (i = 2; i < ido; i += 2) {
      t3 = (t2 += 2);
      t4 += 2;
      t5 -= 2;
      t3 += t0;
      cr2 = wa1[i - 2] * cc[t3 - 1] + wa1[i - 1] * cc[t3];
      ci2 = wa1[i - 2] * cc[t3] - wa1[i - 1] * cc[t3 - 1];
      t3 += t0;
      cr3 = wa2[i - 2] * cc[t3 - 1] + wa2[i - 1] * cc[t3];
      ci3 = wa2[i - 2] * cc[t3] - wa2[i - 1] * cc[t3 - 1];
      t3 += t0;
      cr4 = wa3[i - 2] * cc[t3 - 1] + wa3[i - 1] * cc[t3];
      ci4 = wa3[i - 2] * cc[t3] - wa3[i - 1] * cc[t3 - 1];
      tr1 = cr2 + cr4;
      tr4 = cr4 - cr2;
      ti1 = ci2 + ci4;
      ti4 = ci2 - ci4;
      ti2 = cc[t2] + ci3;
      ti3 = cc[t2] - ci3;
      tr2 = cc[t2 - 1] + cr3;
      tr3 = cc[t2 - 1] - cr3;
      ch[t4 - 1] = tr1 + tr2;
      ch[t4] = ti1 + ti2;
      ch[t5 - 1] = tr3 - ti4;
      ch[t5] = tr4 - ti3;
      ch[t4 + t6 - 1] = ti4 + tr3;
      ch[t4 + t6] = tr4 + ti3;
      ch[t5 + t6 - 1] = tr2 - tr1;
      ch[t5 + t6] = ti1 - ti2;
    }
    t1 += ido;
  }
  if (ido % 2 == 1)
    return;
L105:
  t2 = (t1 = t0 + ido - 1) + (t0 << 1);
  t3 = ido << 2;
  t4 = ido;
  t5 = ido << 1;
  t6 = ido;
  for (k = 0; k < l1; k++) {
    ti1 = -hsqt2 * (cc[t1] + cc[t2]);
    tr1 = hsqt2 * (cc[t1] - cc[t2]);
    ch[t4 - 1] = tr1 + cc[t6 - 1];
    ch[t4 + t5 - 1] = cc[t6 - 1] - tr1;
    ch[t4] = ti1 - cc[t1 + t0];
    ch[t4 + t5] = ti1 + cc[t1 + t0];
    t1 += ido;
    t2 += ido;
    t4 += t3;
    t6 += ido;
  }
}
```