user: Demonstrate the C code that generates the assembly output below:

```asm
<rfft4pt>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x48(%rbp)
  movss  D21(%rip),%xmm0
  movss  %xmm0,-0x3c(%rbp)
  movss  D19(%rip),%xmm0
  movss  %xmm0,-0x38(%rbp)
  movss  D14(%rip),%xmm0
  movss  %xmm0,-0x34(%rbp)
  mov    -0x48(%rbp),%rax
  movss  (%rax),%xmm0
  movss  %xmm0,-0x30(%rbp)
  mov    -0x48(%rbp),%rax
  movss  0x4(%rax),%xmm0
  movss  %xmm0,-0x2c(%rbp)
  mov    -0x48(%rbp),%rax
  movss  0x10(%rax),%xmm0
  movss  %xmm0,-0x28(%rbp)
  mov    -0x48(%rbp),%rax
  movss  0x14(%rax),%xmm0
  movss  %xmm0,-0x24(%rbp)
  mov    -0x48(%rbp),%rax
  movss  0x8(%rax),%xmm0
  movss  %xmm0,-0x20(%rbp)
  mov    -0x48(%rbp),%rax
  movss  0xc(%rax),%xmm0
  movss  %xmm0,-0x1c(%rbp)
  mov    -0x48(%rbp),%rax
  movss  0x18(%rax),%xmm0
  movss  %xmm0,-0x18(%rbp)
  mov    -0x48(%rbp),%rax
  movss  0x1c(%rax),%xmm0
  movss  %xmm0,-0x14(%rbp)
  movss  -0x30(%rbp),%xmm0
  addss  -0x28(%rbp),%xmm0
  movss  %xmm0,-0x10(%rbp)
  movss  -0x2c(%rbp),%xmm0
  addss  -0x24(%rbp),%xmm0
  movss  %xmm0,-0xc(%rbp)
  movss  -0x30(%rbp),%xmm0
  subss  -0x28(%rbp),%xmm0
  movss  %xmm0,-0x28(%rbp)
  movss  -0x2c(%rbp),%xmm0
  subss  -0x24(%rbp),%xmm0
  movss  %xmm0,-0x24(%rbp)
  movss  -0x20(%rbp),%xmm0
  subss  -0x18(%rbp),%xmm0
  movss  %xmm0,-0x8(%rbp)
  movss  -0x1c(%rbp),%xmm0
  subss  -0x14(%rbp),%xmm0
  movss  %xmm0,-0x4(%rbp)
  movss  -0x20(%rbp),%xmm0
  addss  -0x18(%rbp),%xmm0
  movss  %xmm0,-0x20(%rbp)
  movss  -0x1c(%rbp),%xmm0
  addss  -0x14(%rbp),%xmm0
  movss  %xmm0,-0x1c(%rbp)
  movss  -0x10(%rbp),%xmm0
  addss  -0x20(%rbp),%xmm0
  movss  %xmm0,-0x30(%rbp)
  movss  -0xc(%rbp),%xmm0
  addss  -0x1c(%rbp),%xmm0
  movss  %xmm0,-0x2c(%rbp)
  movss  -0x10(%rbp),%xmm0
  subss  -0x20(%rbp),%xmm0
  movss  %xmm0,-0x20(%rbp)
  movss  -0x1c(%rbp),%xmm0
  subss  -0xc(%rbp),%xmm0
  movss  %xmm0,-0x1c(%rbp)
  movss  -0x28(%rbp),%xmm0
  subss  -0x4(%rbp),%xmm0
  movss  %xmm0,-0x18(%rbp)
  movss  -0x24(%rbp),%xmm0
  addss  -0x8(%rbp),%xmm0
  movss  %xmm0,-0x14(%rbp)
  movss  -0x28(%rbp),%xmm0
  addss  -0x4(%rbp),%xmm0
  movss  %xmm0,-0x28(%rbp)
  movss  -0x24(%rbp),%xmm0
  subss  -0x8(%rbp),%xmm0
  movss  %xmm0,-0x24(%rbp)
  movss  -0x30(%rbp),%xmm0
  addss  -0x2c(%rbp),%xmm0
  movss  %xmm0,-0x10(%rbp)
  movss  -0x30(%rbp),%xmm0
  subss  -0x2c(%rbp),%xmm0
  movss  %xmm0,-0xc(%rbp)
  movss  -0x28(%rbp),%xmm0
  addss  -0x18(%rbp),%xmm0
  movss  %xmm0,-0x8(%rbp)
  movss  -0x24(%rbp),%xmm0
  subss  -0x14(%rbp),%xmm0
  movss  %xmm0,-0x4(%rbp)
  movss  -0x24(%rbp),%xmm0
  addss  -0x14(%rbp),%xmm0
  movss  %xmm0,-0x30(%rbp)
  movss  -0x18(%rbp),%xmm0
  subss  -0x28(%rbp),%xmm0
  movss  %xmm0,-0x2c(%rbp)
  movss  -0x3c(%rbp),%xmm0
  mulss  -0x30(%rbp),%xmm0
  movaps %xmm0,%xmm1
  addss  -0x8(%rbp),%xmm1
  movss  -0x3c(%rbp),%xmm0
  mulss  -0x2c(%rbp),%xmm0
  addss  %xmm1,%xmm0
  movss  %xmm0,-0x28(%rbp)
  movss  -0x3c(%rbp),%xmm0
  movaps %xmm0,%xmm2
  mulss  -0x30(%rbp),%xmm2
  movss  -0x4(%rbp),%xmm0
  movaps %xmm0,%xmm1
  subss  %xmm2,%xmm1
  movss  -0x3c(%rbp),%xmm0
  mulss  -0x2c(%rbp),%xmm0
  addss  %xmm1,%xmm0
  movss  %xmm0,-0x24(%rbp)
  movss  -0x38(%rbp),%xmm0
  mulss  -0x8(%rbp),%xmm0
  subss  -0x28(%rbp),%xmm0
  movss  %xmm0,-0x18(%rbp)
  movss  -0x38(%rbp),%xmm0
  movaps %xmm0,%xmm1
  mulss  -0x4(%rbp),%xmm1
  movss  -0x24(%rbp),%xmm0
  subss  %xmm1,%xmm0
  movss  %xmm0,-0x14(%rbp)
  mov    -0x48(%rbp),%rax
  add    $0x10,%rax
  movss  -0x20(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0x48(%rbp),%rax
  add    $0x14,%rax
  movss  -0x1c(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0x48(%rbp),%rax
  movss  -0x10(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0x48(%rbp),%rax
  add    $0x4,%rax
  movss  -0xc(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0x48(%rbp),%rax
  add    $0x8,%rax
  movss  -0x34(%rbp),%xmm0
  mulss  -0x28(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0x48(%rbp),%rax
  add    $0xc,%rax
  movss  -0x34(%rbp),%xmm0
  mulss  -0x24(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0x48(%rbp),%rax
  add    $0x18,%rax
  movss  -0x34(%rbp),%xmm0
  mulss  -0x18(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0x48(%rbp),%rax
  add    $0x1c,%rax
  movss  -0x34(%rbp),%xmm0
  mulss  -0x14(%rbp),%xmm0
  movss  %xmm0,(%rax)
  nop
  pop    %rbp
  ret
```

tool_calls: name: read_data
arguments: tag: D21
datatype: byte[4]
name: read_data
arguments: tag: D19
datatype: f32
name: read_data
arguments: tag: D14
datatype: f32

tool: {"D21": [0xf3,0x04,0x35,0x3f]}

tool: D19: 2

tool: D14: 0.5

assistant: ```c
void rfft4pt(float *ioptr) {
  float f0r, f0i, f1r, f1i, f2r, f2i, f3r, f3i;
  float t0r, t0i, t1r, t1i;
  float w0r = 1.0 / 1.414213562373095048801688724209698078569;
  const float Two = 2.0;
  const float scale = 0.5;
  f0r = ioptr[0];
  f0i = ioptr[1];
  f1r = ioptr[4];
  f1i = ioptr[5];
  f2r = ioptr[2];
  f2i = ioptr[3];
  f3r = ioptr[6];
  f3i = ioptr[7];
  t0r = f0r + f1r;
  t0i = f0i + f1i;
  f1r = f0r - f1r;
  f1i = f0i - f1i;
  t1r = f2r - f3r;
  t1i = f2i - f3i;
  f2r = f2r + f3r;
  f2i = f2i + f3i;
  f0r = t0r + f2r;
  f0i = t0i + f2i;
  f2r = t0r - f2r;
  f2i = f2i - t0i;
  f3r = f1r - t1i;
  f3i = f1i + t1r;
  f1r = f1r + t1i;
  f1i = f1i - t1r;
  t0r = f0r + f0i;
  t0i = f0r - f0i;
  t1r = f1r + f3r;
  t1i = f1i - f3i;
  f0r = f1i + f3i;
  f0i = f3r - f1r;
  f1r = t1r + w0r * f0r + w0r * f0i;
  f1i = t1i - w0r * f0r + w0r * f0i;
  f3r = Two * t1r - f1r;
  f3i = f1i - Two * t1i;
  ioptr[4] = f2r;
  ioptr[5] = f2i;
  ioptr[0] = t0r;
  ioptr[1] = t0i;
  ioptr[2] = scale * f1r;
  ioptr[3] = scale * f1i;
  ioptr[6] = scale * f3r;
  ioptr[7] = scale * f3i;
}
```