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

```asm
<fwt97>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %esi,-0x2c(%rbp)
  movsd  D47(%rip),%xmm0
  mov    D48(%rip),%rcx
  mov    -0x2c(%rbp),%edx
  mov    -0x28(%rbp),%rax
  movapd %xmm0,%xmm1
  movq   %rcx,%xmm0
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <fold@plt>
  movsd  D4(%rip),%xmm0
  mov    D7(%rip),%rcx
  mov    -0x2c(%rbp),%edx
  mov    -0x28(%rbp),%rax
  movapd %xmm0,%xmm1
  movq   %rcx,%xmm0
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <fold@plt>
  movsd  D46(%rip),%xmm0
  movsd  %xmm0,-0x10(%rbp)
  movl   $0x0,-0x14(%rbp)
  jmp    L98
L78:
  mov    -0x14(%rbp),%eax
  and    $0x1,%eax
  test   %eax,%eax
  je     L39
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  divsd  -0x10(%rbp),%xmm0
  jmp    L1
L39:
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  -0x10(%rbp),%xmm0
L1:
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x14(%rbp)
L98:
  mov    -0x14(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jl     L78
  mov    -0x2c(%rbp),%eax
  cltq
  shl    $0x3,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  movl   $0x0,-0x14(%rbp)
  jmp    L74
L59:
  mov    -0x14(%rbp),%eax
  and    $0x1,%eax
  test   %eax,%eax
  je     L99
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x14(%rbp),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %ecx,%eax
  sar    %eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x8(%rbp),%rax
  add    %rcx,%rax
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  jmp    L45
L99:
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x2c(%rbp),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %ecx,%eax
  sar    %eax
  mov    %eax,%esi
  mov    -0x14(%rbp),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %ecx,%eax
  sar    %eax
  add    %esi,%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x8(%rbp),%rax
  add    %rcx,%rax
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
L45:
  addl   $0x1,-0x14(%rbp)
L74:
  mov    -0x14(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jl     L59
  movl   $0x0,-0x14(%rbp)
  jmp    L46
L6:
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x8(%rbp),%rax
  add    %rax,%rdx
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x14(%rbp)
L46:
  mov    -0x14(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jl     L6
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  nop
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_tag: D47
datatype: byte[8]
name: parse_data
arguments: data_tag: D48
datatype: byte[8]
name: parse_data
arguments: data_tag: D4
datatype: f64
name: parse_data
arguments: data_tag: D7
datatype: f64
name: parse_data
arguments: data_tag: D46
datatype: byte[8]

tool: {"D47": [0x97,0x5c,0xef,0xc8,0x35,0x20,0xab,0xbf]}

tool: {"D48": [0x5b,0x3d,0x5f,0x67,0xce,0x60,0xf9,0xbf]}

tool: D4: 0.4435068522

tool: D7: 0.8829110762

tool: {"D46": [0x19,0x44,0xcf,0xf9,0xed,0xd5,0xeb,0x3f]}

assistant: ```c
void fwt97(double x[], int n) {
  double a, *tmp;
  int i;
  fold(x, n, -1.586134342, -0.05298011854);
  fold(x, n, 0.8829110762, 0.4435068522);
  a = 1 / 1.149604398;
  for (i = 0; i < n; i++)
    x[i] = (i & 1) ? x[i] / a : x[i] * a;
  tmp = malloc(n * sizeof(double));
  for (i = 0; i < n; i++) {
    if (i & 1)
      tmp[i / 2] = x[i];
    else
      tmp[n / 2 + i / 2] = x[i];
  }
  for (i = 0; i < n; i++)
    x[i] = tmp[i];
  free(tmp);
}
```