user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<FFT>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %edi,%r15d
  mov    %rsi,%rbx
  mov    %rdx,%rbp
  mov    %ecx,0xc(%rsp)
  mov    $0x1,%r12d
  mov    %edi,%ecx
  shl    %cl,%r12d
  mov    %r12d,%esi
  sar    %esi
  cmp    $0x1,%r12d
  jle    L229
  lea    -0x2(%r12),%r8d
  add    $0x1,%r8
  mov    $0x1,%ecx
  mov    $0x0,%edx
  jmp    L160
L156:
  add    $0x1,%rcx
L160:
  cmp    %edx,%esi
  jg     L201
  mov    %esi,%eax
L265:
  sub    %eax,%edx
  sar    %eax
  cmp    %eax,%edx
  jge    L265
L93:
  add    %eax,%edx
  cmp    %r8,%rcx
  je     L229
  cmp    %ecx,%edx
  jle    L156
  movss  (%rbx,%rcx,4),%xmm1
  movss  0x0(%rbp,%rcx,4),%xmm0
  movslq %edx,%rax
  shl    $0x2,%rax
  lea    (%rbx,%rax,1),%rdi
  movss  (%rdi),%xmm2
  movss  %xmm2,(%rbx,%rcx,4)
  add    %rbp,%rax
  movss  (%rax),%xmm2
  movss  %xmm2,0x0(%rbp,%rcx,4)
  movss  %xmm1,(%rdi)
  movss  %xmm0,(%rax)
  jmp    L156
L201:
  mov    %esi,%eax
  jmp    L93
L229:
  test   %r15d,%r15d
  jle    L73
  pxor   %xmm7,%xmm7
  movss  %xmm7,0x8(%rsp)
  movss  D2(%rip),%xmm7
  movss  %xmm7,0x4(%rsp)
  mov    $0x1,%r13d
  mov    $0x0,%r14d
  jmp    L64
L55:
  movss  (%rcx,%rax,4),%xmm2
  movss  (%rdx,%rax,4),%xmm0
  movaps %xmm2,%xmm1
  mulss  %xmm4,%xmm1
  movaps %xmm0,%xmm5
  mulss  %xmm3,%xmm5
  subss  %xmm5,%xmm1
  mulss  %xmm4,%xmm0
  mulss  %xmm3,%xmm2
  addss  %xmm2,%xmm0
  movss  (%rbx,%rax,4),%xmm2
  subss  %xmm1,%xmm2
  movss  %xmm2,(%rcx,%rax,4)
  movss  0x0(%rbp,%rax,4),%xmm2
  subss  %xmm0,%xmm2
  movss  %xmm2,(%rdx,%rax,4)
  addss  (%rbx,%rax,4),%xmm1
  movss  %xmm1,(%rbx,%rax,4)
  addss  0x0(%rbp,%rax,4),%xmm0
  movss  %xmm0,0x0(%rbp,%rax,4)
  add    %rsi,%rax
  cmp    %eax,%r12d
  jg     L55
L53:
  movss  0x4(%rsp),%xmm6
  movaps %xmm6,%xmm0
  mulss  %xmm4,%xmm0
  movss  0x8(%rsp),%xmm7
  movaps %xmm7,%xmm1
  mulss  %xmm3,%xmm1
  subss  %xmm1,%xmm0
  mulss  %xmm6,%xmm3
  mulss  %xmm7,%xmm4
  addss  %xmm4,%xmm3
  add    $0x1,%rdi
  cmp    %rdi,%r8
  je     L212
  movaps %xmm0,%xmm4
L76:
  mov    %rdi,%rax
  cmp    %edi,%r12d
  jg     L55
  jmp    L53
L212:
  movss  D37(%rip),%xmm0
  subss  0x4(%rsp),%xmm0
  mulss  D16(%rip),%xmm0
  pxor   %xmm1,%xmm1
  ucomiss %xmm0,%xmm1
  ja     L11
  sqrtss %xmm0,%xmm0
  movss  %xmm0,0x8(%rsp)
L116:
  movss  0x4(%rsp),%xmm0
  addss  D37(%rip),%xmm0
  mulss  D16(%rip),%xmm0
  pxor   %xmm1,%xmm1
  ucomiss %xmm0,%xmm1
  ja     L185
  sqrtss %xmm0,%xmm0
  movss  %xmm0,0x4(%rsp)
L197:
  cmpl   $0x1,0xc(%rsp)
  je     L21
L44:
  add    $0x1,%r14d
  cmp    %r14d,%r15d
  je     L73
L64:
  mov    %r13d,%eax
  add    %r13d,%r13d
  test   %eax,%eax
  jle    L212
  mov    %eax,%r8d
  movslq %eax,%rdx
  shl    $0x2,%rdx
  lea    (%rbx,%rdx,1),%rcx
  add    %rbp,%rdx
  mov    $0x0,%edi
  pxor   %xmm3,%xmm3
  movss  D37(%rip),%xmm4
  movslq %r13d,%rsi
  jmp    L76
L11:
  call   <sqrtf@plt>
  movss  %xmm0,0x8(%rsp)
  jmp    L116
L185:
  call   <sqrtf@plt>
  movss  %xmm0,0x4(%rsp)
  jmp    L197
L21:
  movss  0x8(%rsp),%xmm7
  xorps  D55(%rip),%xmm7
  movss  %xmm7,0x8(%rsp)
  jmp    L44
L73:
  cmpl   $0x1,0xc(%rsp)
  je     L24
L13:
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L24:
  pxor   %xmm1,%xmm1
  cvtsi2ss %r12d,%xmm1
  movss  D37(%rip),%xmm0
  divss  %xmm1,%xmm0
  test   %r12d,%r12d
  jle    L13
  mov    %r12d,%r12d
  mov    $0x0,%eax
L34:
  movaps %xmm0,%xmm1
  mulss  (%rbx,%rax,4),%xmm1
  movss  %xmm1,(%rbx,%rax,4)
  movaps %xmm0,%xmm1
  mulss  0x0(%rbp,%rax,4),%xmm1
  movss  %xmm1,0x0(%rbp,%rax,4)
  add    $0x1,%rax
  cmp    %rax,%r12
  jne    L34
  jmp    L13
```

tool_calls: name: parse_data
arguments: data_tag: D2
type_infered: byte[4]
name: parse_data
arguments: data_tag: D37
type_infered: byte[4]
name: parse_data
arguments: data_tag: D16
type_infered: byte[4]
name: parse_data
arguments: data_tag: D55
type_infered: byte[16]

tool: {"D2": [0x00,0x00,0x80,0xbf]}

tool: {"D37": [0x00,0x00,0x80,0x3f]}

tool: {"D16": [0x00,0x00,0x00,0x3f]}

tool: {"D55": [0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

assistant: ```c
void FFT(int m, float *x, float *y, int dir) {
  int n, i, i1, j, k, i2, l, l1, l2;
  float c1, c2, tx, ty, t1, t2, u1, u2, z;
  n = 1 << m;
  i2 = n >> 1;
  j = 0;
  for (i = 0; i < n - 1; i++) {
    if (i < j) {
      tx = x[i];
      ty = y[i];
      x[i] = x[j];
      y[i] = y[j];
      x[j] = tx;
      y[j] = ty;
    }
    k = i2;
    while (k <= j) {
      j -= k;
      k >>= 1;
    }
    j += k;
  }
  c1 = -1.0f;
  c2 = 0;
  l2 = 1;
  for (l = 0; l < m; l++) {
    l1 = l2;
    l2 <<= 1;
    u1 = 1.0f;
    u2 = 0;
    for (j = 0; j < l1; j++) {
      for (i = j; i < n; i += l2) {
        i1 = i + l1;
        t1 = u1 * x[i1] - u2 * y[i1];
        t2 = u1 * y[i1] + u2 * x[i1];
        x[i1] = x[i] - t1;
        y[i1] = y[i] - t2;
        x[i] += t1;
        y[i] += t2;
      }
      z = u1 * c1 - u2 * c2;
      u2 = u1 * c2 + u2 * c1;
      u1 = z;
    }
    c2 = sqrtf(0.5f * (1.0f - c1));
    c1 = sqrtf(0.5f * (1.0f + c1));
    if (dir == 1)
      c2 = -c2;
  }
  if (dir == 1) {
    float scale = 1.0f / n;
    for (i = 0; i < n; i++) {
      x[i] *= scale;
      y[i] *= scale;
    }
  }
}
```