user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<twiddleFFT_2>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x90,%rsp
  mov    %edi,-0x64(%rbp)
  mov    %esi,-0x68(%rbp)
  mov    %edx,-0x6c(%rbp)
  mov    %ecx,-0x70(%rbp)
  mov    %r8,-0x78(%rbp)
  mov    %r9,-0x80(%rbp)
  mov    0x10(%rbp),%rax
  mov    %rax,-0x88(%rbp)
  mov    0x18(%rbp),%rax
  mov    %rax,-0x90(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x70(%rbp),%eax
  mov    %eax,-0x54(%rbp)
  movl   $0x0,-0x5c(%rbp)
  jmp    L48
L41:
  movl   $0x0,-0x58(%rbp)
  jmp    L27
L18:
  mov    -0x58(%rbp),%eax
  cltq
  mov    -0x54(%rbp),%edx
  mov    %edx,-0x10(%rbp,%rax,4)
  mov    -0x64(%rbp),%eax
  add    %eax,-0x54(%rbp)
  addl   $0x1,-0x58(%rbp)
L27:
  mov    -0x58(%rbp),%eax
  cmp    -0x68(%rbp),%eax
  jl     L18
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x88(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movsd  %xmm0,-0x50(%rbp)
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movsd  %xmm0,-0x48(%rbp)
  mov    -0xc(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x88(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movsd  %xmm0,-0x40(%rbp)
  mov    -0xc(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movsd  %xmm0,-0x38(%rbp)
  mov    -0x78(%rbp),%rax
  movsd  0x8(%rax),%xmm0
  movsd  %xmm0,-0x30(%rbp)
  mov    -0x80(%rbp),%rax
  movsd  0x8(%rax),%xmm0
  movsd  %xmm0,-0x28(%rbp)
  movsd  -0x30(%rbp),%xmm0
  mulsd  -0x40(%rbp),%xmm0
  movsd  -0x28(%rbp),%xmm1
  mulsd  -0x38(%rbp),%xmm1
  subsd  %xmm1,%xmm0
  movsd  %xmm0,-0x20(%rbp)
  movsd  -0x30(%rbp),%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x38(%rbp),%xmm1
  movsd  -0x28(%rbp),%xmm0
  mulsd  -0x40(%rbp),%xmm0
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x18(%rbp)
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x88(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x50(%rbp),%xmm0
  addsd  -0x20(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0xc(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x88(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x50(%rbp),%xmm0
  subsd  -0x20(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x48(%rbp),%xmm0
  addsd  -0x18(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0xc(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x48(%rbp),%xmm0
  subsd  -0x18(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x64(%rbp),%eax
  imul   -0x68(%rbp),%eax
  add    %eax,-0x70(%rbp)
  mov    -0x70(%rbp),%eax
  mov    %eax,-0x54(%rbp)
  addl   $0x1,-0x5c(%rbp)
L48:
  mov    -0x5c(%rbp),%eax
  cmp    -0x6c(%rbp),%eax
  jl     L41
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L30
  call   <__stack_chk_fail@plt>
L30:
  leave
  ret
```

assistant: ```c
void twiddleFFT_2(int sofarRadix, int radix, int remainRadix, int groupOffset, double twiddleRe[], double twiddleIm[], double yRe[], double yIm[]) {
  int yIndx[2];
  int groupNo, blockNo, adr;
  double yr, yi, twr, twi;
  double ar0, ar1;
  double ai0, ai1;
  adr = groupOffset;
  for (groupNo = 0; groupNo < remainRadix; groupNo++) {
    for (blockNo = 0; blockNo < radix; blockNo++) {
      yIndx[blockNo] = adr;
      adr = adr + sofarRadix;
    }
    ar0 = yRe[yIndx[0]];
    ai0 = yIm[yIndx[0]];
    yr = yRe[yIndx[1]];
    yi = yIm[yIndx[1]];
    twr = twiddleRe[1];
    twi = twiddleIm[1];
    ar1 = twr * yr - twi * yi;
    ai1 = twr * yi + twi * yr;
    yRe[yIndx[0]] = ar0 + ar1;
    yRe[yIndx[1]] = ar0 - ar1;
    yIm[yIndx[0]] = ai0 + ai1;
    yIm[yIndx[1]] = ai0 - ai1;
    groupOffset = groupOffset + sofarRadix * radix;
    adr = groupOffset;
  }
}
```