#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int Calc_power_of_two(int);
int /*<<< orphan*/ Make_initial_data(double *, double *, int, int);
double cos(double);
double sin(double);
void FFT1(double *re_part, double *im_part, int number_of_data, int flag) {
  int i, j, k;
  int power;
  double unit_angle, step_angle;
  int dft, half, num_of_dft;
  int num_out, num_in1, num_in2;
  double re_buf, im_buf, angle;
  static double re_part_new[256], im_part_new[256];
  if (flag == -1) {
    for (i = 0; i < number_of_data; i++) {
      *(re_part + i) = *(re_part + i) / number_of_data;
      *(im_part + i) = -*(im_part + i) / number_of_data;
    }
  }
  power = Calc_power_of_two(number_of_data);
  Make_initial_data(re_part, im_part, number_of_data, power);
  unit_angle = 2.0 * 3.141592653589 / number_of_data;
  dft = 2;
  for (i = 0; i < power; i++) {
    num_of_dft = number_of_data / dft;
    step_angle = unit_angle * num_of_dft;
    half = dft / 2;
    for (j = 0; j < num_of_dft; j++) {
      angle = 0.0;
      for (k = 0; k < dft; k++) {
        num_out = j * dft + k;
        if (k < half) {
          num_in1 = num_out;
          num_in2 = num_in1 + half;
        } else {
          num_in2 = num_out;
          num_in1 = num_out - half;
        }
        re_buf = *(re_part + num_in2);
        im_buf = *(im_part + num_in2);
        re_part_new[num_out] =
            *(re_part + num_in1) + re_buf * cos(angle) + im_buf * sin(angle);
        im_part_new[num_out] =
            *(im_part + num_in1) + im_buf * cos(angle) - re_buf * sin(angle);
        angle = angle + step_angle;
      }
    }
    for (j = 0; j < number_of_data; j++) {
      *(re_part + j) = re_part_new[j];
      *(im_part + j) = im_part_new[j];
    }
    dft = dft * 2;
  }
  if (flag == -1) {
    for (j = 0; j < number_of_data; j++) {
      *(im_part + j) = -*(im_part + j);
    }
  }
}


x86 assembly (clang, -O0):
<FFT1>:
push   %rbp
mov    %rsp,%rbp
sub    $0xb0,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %edx,-0x14(%rbp)
mov    %ecx,-0x18(%rbp)
cmpl   $0xffffffff,-0x18(%rbp)
jne    11e6 <FFT1+0xa6>
movl   $0x0,-0x1c(%rbp)
mov    -0x1c(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    11e1 <FFT1+0xa1>
mov    -0x8(%rbp),%rax
movslq -0x1c(%rbp),%rcx
movsd  (%rax,%rcx,8),%xmm0
cvtsi2sdl -0x14(%rbp),%xmm1
divsd  %xmm1,%xmm0
mov    -0x8(%rbp),%rax
movslq -0x1c(%rbp),%rcx
movsd  %xmm0,(%rax,%rcx,8)
mov    -0x10(%rbp),%rax
movslq -0x1c(%rbp),%rcx
movsd  (%rax,%rcx,8),%xmm0
movq   %xmm0,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm0
cvtsi2sdl -0x14(%rbp),%xmm1
divsd  %xmm1,%xmm0
mov    -0x10(%rbp),%rax
movslq -0x1c(%rbp),%rcx
movsd  %xmm0,(%rax,%rcx,8)
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    116a <FFT1+0x2a>
jmp    11e6 <FFT1+0xa6>
mov    -0x14(%rbp),%edi
call   1040 <Calc_power_of_two@plt>
mov    %eax,-0x28(%rbp)
mov    -0x8(%rbp),%rdi
mov    -0x10(%rbp),%rsi
mov    -0x14(%rbp),%edx
mov    -0x28(%rbp),%ecx
call   1030 <Make_initial_data@plt>
cvtsi2sdl -0x14(%rbp),%xmm1
movsd  0xdef(%rip),%xmm0
divsd  %xmm1,%xmm0
movsd  %xmm0,-0x30(%rbp)
movl   $0x2,-0x3c(%rbp)
movl   $0x0,-0x1c(%rbp)
mov    -0x1c(%rbp),%eax
cmp    -0x28(%rbp),%eax
jge    14b6 <FFT1+0x376>
mov    -0x14(%rbp),%eax
cltd
idivl  -0x3c(%rbp)
mov    %eax,-0x44(%rbp)
movsd  -0x30(%rbp),%xmm0
cvtsi2sdl -0x44(%rbp),%xmm1
mulsd  %xmm1,%xmm0
movsd  %xmm0,-0x38(%rbp)
mov    -0x3c(%rbp),%eax
mov    $0x2,%ecx
cltd
idiv   %ecx
mov    %eax,-0x40(%rbp)
movl   $0x0,-0x20(%rbp)
mov    -0x20(%rbp),%eax
cmp    -0x44(%rbp),%eax
jge    1444 <FFT1+0x304>
xorps  %xmm0,%xmm0
movsd  %xmm0,-0x68(%rbp)
movl   $0x0,-0x24(%rbp)
mov    -0x24(%rbp),%eax
cmp    -0x3c(%rbp),%eax
jge    1431 <FFT1+0x2f1>
mov    -0x20(%rbp),%eax
imul   -0x3c(%rbp),%eax
add    -0x24(%rbp),%eax
mov    %eax,-0x48(%rbp)
mov    -0x24(%rbp),%eax
cmp    -0x40(%rbp),%eax
jge    12ba <FFT1+0x17a>
mov    -0x48(%rbp),%eax
mov    %eax,-0x4c(%rbp)
mov    -0x4c(%rbp),%eax
add    -0x40(%rbp),%eax
mov    %eax,-0x50(%rbp)
jmp    12c9 <FFT1+0x189>
mov    -0x48(%rbp),%eax
mov    %eax,-0x50(%rbp)
mov    -0x48(%rbp),%eax
sub    -0x40(%rbp),%eax
mov    %eax,-0x4c(%rbp)
mov    -0x8(%rbp),%rax
movslq -0x50(%rbp),%rcx
movsd  (%rax,%rcx,8),%xmm0
movsd  %xmm0,-0x58(%rbp)
mov    -0x10(%rbp),%rax
movslq -0x50(%rbp),%rcx
movsd  (%rax,%rcx,8),%xmm0
movsd  %xmm0,-0x60(%rbp)
mov    -0x8(%rbp),%rax
movslq -0x4c(%rbp),%rcx
movsd  (%rax,%rcx,8),%xmm0
movsd  %xmm0,-0xa8(%rbp)
ff
movsd  -0x58(%rbp),%xmm0
movsd  %xmm0,-0xa0(%rbp)
ff
movsd  -0x68(%rbp),%xmm0
call   1060 <cos@plt>
movsd  -0xa8(%rbp),%xmm1
ff
movaps %xmm0,%xmm2
movsd  -0xa0(%rbp),%xmm0
ff
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  %xmm0,-0x98(%rbp)
ff
movsd  -0x60(%rbp),%xmm0
movsd  %xmm0,-0x90(%rbp)
ff
movsd  -0x68(%rbp),%xmm0
call   1050 <sin@plt>
movsd  -0x98(%rbp),%xmm1
ff
movaps %xmm0,%xmm2
movsd  -0x90(%rbp),%xmm0
ff
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movslq -0x48(%rbp),%rcx
lea    0x2cd7(%rip),%rax
movsd  %xmm0,(%rax,%rcx,8)
mov    -0x10(%rbp),%rax
movslq -0x4c(%rbp),%rcx
movsd  (%rax,%rcx,8),%xmm0
movsd  %xmm0,-0x88(%rbp)
ff
movsd  -0x60(%rbp),%xmm0
movsd  %xmm0,-0x80(%rbp)
movsd  -0x68(%rbp),%xmm0
call   1060 <cos@plt>
movsd  -0x88(%rbp),%xmm1
ff
movaps %xmm0,%xmm2
movsd  -0x80(%rbp),%xmm0
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  %xmm0,-0x78(%rbp)
movsd  -0x58(%rbp),%xmm0
movsd  %xmm0,-0x70(%rbp)
movsd  -0x68(%rbp),%xmm0
call   1050 <sin@plt>
movsd  -0x78(%rbp),%xmm1
movaps %xmm0,%xmm2
movsd  -0x70(%rbp),%xmm0
movq   %xmm0,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm0
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movslq -0x48(%rbp),%rcx
lea    0x3441(%rip),%rax
movsd  %xmm0,(%rax,%rcx,8)
movsd  -0x68(%rbp),%xmm0
addsd  -0x38(%rbp),%xmm0
movsd  %xmm0,-0x68(%rbp)
mov    -0x24(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x24(%rbp)
jmp    1281 <FFT1+0x141>
jmp    1436 <FFT1+0x2f6>
mov    -0x20(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x20(%rbp)
jmp    1266 <FFT1+0x126>
movl   $0x0,-0x20(%rbp)
mov    -0x20(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    149f <FFT1+0x35f>
movslq -0x20(%rbp),%rcx
lea    0x2bee(%rip),%rax
movsd  (%rax,%rcx,8),%xmm0
mov    -0x8(%rbp),%rax
movslq -0x20(%rbp),%rcx
movsd  %xmm0,(%rax,%rcx,8)
movslq -0x20(%rbp),%rcx
lea    0x33d1(%rip),%rax
movsd  (%rax,%rcx,8),%xmm0
mov    -0x10(%rbp),%rax
movslq -0x20(%rbp),%rcx
movsd  %xmm0,(%rax,%rcx,8)
mov    -0x20(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x20(%rbp)
jmp    144b <FFT1+0x30b>
mov    -0x3c(%rbp),%eax
shl    $0x1,%eax
mov    %eax,-0x3c(%rbp)
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    1228 <FFT1+0xe8>
cmpl   $0xffffffff,-0x18(%rbp)
jne    1517 <FFT1+0x3d7>
movl   $0x0,-0x20(%rbp)
mov    -0x20(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    1512 <FFT1+0x3d2>
mov    -0x10(%rbp),%rax
movslq -0x20(%rbp),%rcx
movsd  (%rax,%rcx,8),%xmm0
movq   %xmm0,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm0
mov    -0x10(%rbp),%rax
movslq -0x20(%rbp),%rcx
movsd  %xmm0,(%rax,%rcx,8)
mov    -0x20(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x20(%rbp)
jmp    14c7 <FFT1+0x387>
jmp    1517 <FFT1+0x3d7>
add    $0xb0,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<FFT1>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0xd8,%rsp
mov    %edx,%r15d
mov    %rdi,%r8
cmp    $0xffffffff,%ecx
sete   %al
test   %edx,%edx
setg   %cl
and    %al,%cl
cvtsi2sd %edx,%xmm3
mov    %edx,%r12d
mov    %cl,0xe(%rsp)
cmp    $0x1,%cl
jne    11cb <FFT1+0x8b>
cmp    $0x2,%r15d
jb     1194 <FFT1+0x54>
lea    (%rsi,%r12,8),%rax
cmp    %r8,%rax
jbe    178b <FFT1+0x64b>
lea    (%r8,%r12,8),%rax
cmp    %rsi,%rax
jbe    178b <FFT1+0x64b>
xor    %eax,%eax
movapd 0xe62(%rip),%xmm0
xchg   %ax,%ax
movsd  (%r8,%rax,8),%xmm1
divsd  %xmm3,%xmm1
movsd  %xmm1,(%r8,%rax,8)
movsd  (%rsi,%rax,8),%xmm1
xorpd  %xmm0,%xmm1
divsd  %xmm3,%xmm1
movsd  %xmm1,(%rsi,%rax,8)
add    $0x1,%rax
cmp    %rax,%r12
jne    11a0 <FFT1+0x60>
movapd %xmm3,0x40(%rsp)
mov    %r15d,%edi
mov    %rsi,0x28(%rsp)
mov    %r8,0x20(%rsp)
call   1040 <Calc_power_of_two@plt>
mov    %eax,%r14d
mov    0x20(%rsp),%rdi
mov    0x28(%rsp),%rsi
mov    %r15d,%edx
mov    %eax,%ecx
call   1030 <Make_initial_data@plt>
mov    0x20(%rsp),%r11
mov    0x28(%rsp),%r9
mov    %r14d,0x34(%rsp)
test   %r14d,%r14d
jle    1681 <FFT1+0x541>
movsd  0xdf6(%rip),%xmm0
divsd  0x40(%rsp),%xmm0
movsd  %xmm0,0x98(%rsp)
lea    (%r9,%r12,8),%rax
mov    %r12d,%ecx
and    $0xfffffffc,%ecx
mov    %rcx,0x88(%rsp)
add    $0xfffffffffffffffc,%rcx
mov    %rcx,0x80(%rsp)
mov    %rcx,%rdx
shr    $0x2,%rdx
add    $0x1,%rdx
cmp    %r11,%rax
seta   %al
lea    (%r11,%r12,8),%rcx
cmp    %r9,%rcx
seta   %cl
and    %al,%cl
mov    %cl,0xf(%rsp)
mov    %rdx,%rax
mov    %rdx,0x78(%rsp)
and    $0xfffffffffffffffe,%rdx
mov    %rdx,0x70(%rsp)
mov    %r12,%rax
neg    %rax
mov    %rax,0x90(%rsp)
mov    $0x2,%r8d
xor    %ebx,%ebx
xor    %eax,%eax
mov    %r12,0xa0(%rsp)
mov    %r15d,0x30(%rsp)
jmp    12b4 <FFT1+0x174>
add    %r8d,%r8d
mov    0x38(%rsp),%eax
add    $0x1,%eax
cmp    0x34(%rsp),%eax
je     1681 <FFT1+0x541>
mov    %eax,0x38(%rsp)
mov    %r15d,%eax
cltd
idiv   %r8d
test   %eax,%eax
jle    14e0 <FFT1+0x3a0>
xorps  %xmm0,%xmm0
cvtsi2sd %eax,%xmm0
mulsd  0x98(%rsp),%xmm0
mov    %r8d,%ecx
shr    %ecx
mov    %ecx,%ebp
movslq %r8d,%rcx
mov    %eax,%eax
mov    %rax,0xb0(%rsp)
mov    %r8d,%edx
mov    %rcx,0xb8(%rsp)
lea    0x0(,%rcx,8),%rax
mov    %rax,0xa8(%rsp)
lea    0x3543(%rip),%r13
lea    0x2d3c(%rip),%r10
mov    %r9,%r14
mov    %r11,%r15
xor    %edi,%edi
xor    %eax,%eax
mov    %r8d,0x3c(%rsp)
movsd  %xmm0,0xd0(%rsp)
mov    %rbp,0xc8(%rsp)
jmp    1385 <FFT1+0x245>
cs nopw 0x0(%rax,%rax,1)
mov    0xc0(%rsp),%rax
add    $0x1,%rax
add    0xb8(%rsp),%rdi
mov    0xa8(%rsp),%r8
add    %r8,%r15
mov    0x60(%rsp),%r14
add    %r8,%r14
mov    0x58(%rsp),%r10
add    %r8,%r10
add    %r8,%r13
cmp    0xb0(%rsp),%rax
mov    0x3c(%rsp),%r8d
je     14e0 <FFT1+0x3a0>
mov    %r10,0x58(%rsp)
mov    %r14,0x60(%rsp)
mov    %rax,0xc0(%rsp)
test   %r8d,%r8d
jle    1340 <FFT1+0x200>
xorpd  %xmm1,%xmm1
xor    %r12d,%r12d
cs nopw 0x0(%rax,%rax,1)
nopl   (%rax)
movsd  %xmm1,0x40(%rsp)
cmp    %rbp,%r12
mov    %rbp,%r14
cmovb  %rbx,%r14
mov    $0x0,%eax
cmovb  %rbp,%rax
add    %rdi,%rax
add    %r12,%rax
movsd  (%r11,%rax,8),%xmm0
movsd  %xmm0,0x68(%rsp)
movsd  (%r9,%rax,8),%xmm0
movsd  %xmm0,0x18(%rsp)
shl    $0x3,%r14
mov    %r15,%rax
sub    %r14,%rax
movsd  (%rax,%r12,8),%xmm0
movsd  %xmm0,0x10(%rsp)
movapd %xmm1,%xmm0
mov    %rdx,%rbx
mov    %rdi,%rbp
call   1060 <cos@plt>
mulsd  0x68(%rsp),%xmm0
addsd  0x10(%rsp),%xmm0
movsd  %xmm0,0x10(%rsp)
movsd  0x40(%rsp),%xmm0
call   1050 <sin@plt>
mulsd  0x18(%rsp),%xmm0
addsd  0x10(%rsp),%xmm0
mov    0x58(%rsp),%rax
movsd  %xmm0,(%rax,%r12,8)
mov    0x60(%rsp),%rax
sub    %r14,%rax
movsd  (%rax,%r12,8),%xmm0
movsd  %xmm0,0x10(%rsp)
movsd  0x40(%rsp),%xmm0
call   1060 <cos@plt>
mulsd  0x18(%rsp),%xmm0
addsd  0x10(%rsp),%xmm0
movsd  %xmm0,0x18(%rsp)
movsd  0x40(%rsp),%xmm0
call   1050 <sin@plt>
movsd  0x40(%rsp),%xmm1
mov    %rbp,%rdi
mov    0xc8(%rsp),%rbp
mov    %rbx,%rdx
xor    %ebx,%ebx
mov    0x20(%rsp),%r11
mov    0x28(%rsp),%r9
mulsd  0x68(%rsp),%xmm0
movsd  0x18(%rsp),%xmm2
subsd  %xmm0,%xmm2
movsd  0xd0(%rsp),%xmm0
movsd  %xmm2,0x0(%r13,%r12,8)
addsd  %xmm0,%xmm1
add    $0x1,%r12
cmp    %r12,%rdx
jne    13b0 <FFT1+0x270>
jmp    1340 <FFT1+0x200>
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
mov    0x30(%rsp),%r15d
test   %r15d,%r15d
mov    0xa0(%rsp),%r12
lea    0x2b59(%rip),%rdx
lea    0x3352(%rip),%rbp
jle    12a0 <FFT1+0x160>
cmp    $0x4,%r15d
setb   %al
or     0xf(%rsp),%al
je     1520 <FFT1+0x3e0>
xor    %ecx,%ecx
jmp    15eb <FFT1+0x4ab>
nopl   0x0(%rax,%rax,1)
cmpq   $0x0,0x80(%rsp)
je     166f <FFT1+0x52f>
mov    0x70(%rsp),%rcx
xor    %eax,%eax
cs nopw 0x0(%rax,%rax,1)
movaps (%rdx,%rax,8),%xmm0
movaps 0x10(%rdx,%rax,8),%xmm1
movups %xmm0,(%r11,%rax,8)
movups %xmm1,0x10(%r11,%rax,8)
movaps 0x0(%rbp,%rax,8),%xmm0
movaps 0x10(%rbp,%rax,8),%xmm1
movups %xmm0,(%r9,%rax,8)
movups %xmm1,0x10(%r9,%rax,8)
movaps 0x20(%rdx,%rax,8),%xmm0
movaps 0x30(%rdx,%rax,8),%xmm1
movups %xmm0,0x20(%r11,%rax,8)
movups %xmm1,0x30(%r11,%rax,8)
movapd 0x20(%rbp,%rax,8),%xmm0
movapd 0x30(%rbp,%rax,8),%xmm1
movupd %xmm0,0x20(%r9,%rax,8)
movupd %xmm1,0x30(%r9,%rax,8)
add    $0x8,%rax
add    $0xfffffffffffffffe,%rcx
jne    1540 <FFT1+0x400>
testb  $0x1,0x78(%rsp)
je     15d7 <FFT1+0x497>
movaps (%rdx,%rax,8),%xmm0
movaps 0x10(%rdx,%rax,8),%xmm1
movups %xmm0,(%r11,%rax,8)
movups %xmm1,0x10(%r11,%rax,8)
movapd 0x0(%rbp,%rax,8),%xmm0
movapd 0x10(%rbp,%rax,8),%xmm1
movupd %xmm0,(%r9,%rax,8)
movupd %xmm1,0x10(%r9,%rax,8)
mov    0x88(%rsp),%rax
mov    %rax,%rcx
cmp    %r12,%rax
je     12a0 <FFT1+0x160>
mov    %rcx,%rax
test   $0x1,%r12b
je     1612 <FFT1+0x4d2>
movsd  (%rdx,%rcx,8),%xmm0
movsd  %xmm0,(%r11,%rcx,8)
movsd  0x0(%rbp,%rcx,8),%xmm0
movsd  %xmm0,(%r9,%rcx,8)
mov    %rcx,%rax
or     $0x1,%rax
not    %rcx
cmp    0x90(%rsp),%rcx
je     12a0 <FFT1+0x160>
cs nopw 0x0(%rax,%rax,1)
nopl   (%rax)
movsd  (%rdx,%rax,8),%xmm0
movsd  %xmm0,(%r11,%rax,8)
movsd  0x0(%rbp,%rax,8),%xmm0
movsd  %xmm0,(%r9,%rax,8)
movsd  0x8(%rdx,%rax,8),%xmm0
movsd  %xmm0,0x8(%r11,%rax,8)
movsd  0x8(%rbp,%rax,8),%xmm0
movsd  %xmm0,0x8(%r9,%rax,8)
add    $0x2,%rax
cmp    %rax,%r12
jne    1630 <FFT1+0x4f0>
jmp    12a0 <FFT1+0x160>
xor    %eax,%eax
testb  $0x1,0x78(%rsp)
jne    15aa <FFT1+0x46a>
jmp    15d7 <FFT1+0x497>
cmpb   $0x0,0xe(%rsp)
je     1779 <FFT1+0x639>
cmp    $0x4,%r15d
jae    1699 <FFT1+0x559>
xor    %eax,%eax
jmp    1754 <FFT1+0x614>
mov    %r12d,%eax
and    $0xfffffffc,%eax
lea    -0x4(%rax),%rcx
mov    %rcx,%rdx
shr    $0x2,%rdx
add    $0x1,%rdx
test   %rcx,%rcx
je     17e9 <FFT1+0x6a9>
mov    %rdx,%rsi
and    $0xfffffffffffffffe,%rsi
xor    %ecx,%ecx
movapd 0x938(%rip),%xmm0
nopl   0x0(%rax,%rax,1)
movupd (%r9,%rcx,8),%xmm1
movupd 0x10(%r9,%rcx,8),%xmm2
movupd 0x20(%r9,%rcx,8),%xmm3
movupd 0x30(%r9,%rcx,8),%xmm4
xorpd  %xmm0,%xmm1
xorpd  %xmm0,%xmm2
movupd %xmm1,(%r9,%rcx,8)
movupd %xmm2,0x10(%r9,%rcx,8)
xorpd  %xmm0,%xmm3
xorpd  %xmm0,%xmm4
movupd %xmm3,0x20(%r9,%rcx,8)
movupd %xmm4,0x30(%r9,%rcx,8)
add    $0x8,%rcx
add    $0xfffffffffffffffe,%rsi
jne    16d0 <FFT1+0x590>
test   $0x1,%dl
je     174f <FFT1+0x60f>
movupd (%r9,%rcx,8),%xmm0
movupd 0x10(%r9,%rcx,8),%xmm1
movapd 0x8c6(%rip),%xmm2
xorpd  %xmm2,%xmm0
xorpd  %xmm2,%xmm1
movupd %xmm0,(%r9,%rcx,8)
movupd %xmm1,0x10(%r9,%rcx,8)
cmp    %r12,%rax
je     1779 <FFT1+0x639>
movapd 0x8a4(%rip),%xmm0
nopl   0x0(%rax)
movsd  (%r9,%rax,8),%xmm1
xorpd  %xmm0,%xmm1
movlpd %xmm1,(%r9,%rax,8)
add    $0x1,%rax
cmp    %rax,%r12
jne    1760 <FFT1+0x620>
add    $0xd8,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
ret
mov    %r12d,%eax
and    $0xfffffffe,%eax
movapd %xmm3,%xmm0
unpcklpd %xmm3,%xmm0
lea    0x0(,%r12,8),%rcx
and    $0xfffffffffffffff0,%rcx
xor    %edx,%edx
movapd 0x851(%rip),%xmm1
nop
movupd (%r8,%rdx,1),%xmm2
divpd  %xmm0,%xmm2
movupd %xmm2,(%r8,%rdx,1)
movupd (%rsi,%rdx,1),%xmm2
xorpd  %xmm1,%xmm2
divpd  %xmm0,%xmm2
movupd %xmm2,(%rsi,%rdx,1)
add    $0x10,%rdx
cmp    %rdx,%rcx
jne    17b0 <FFT1+0x670>
cmp    %r12,%rax
je     11cb <FFT1+0x8b>
jmp    1196 <FFT1+0x56>
xor    %ecx,%ecx
test   $0x1,%dl
jne    1725 <FFT1+0x5e5>
jmp    174f <FFT1+0x60f>

LLVM IR (-O0):
@FFT1.re_part_new = internal global [256 x double] zeroinitializer
@FFT1.im_part_new = internal global [256 x double] zeroinitializer
define void @FFT1(double* %0, double* %1, i32 %2, i32 %3) {
%5 = alloca double*
%6 = alloca double*
%7 = alloca i32
%8 = alloca i32
%9 = alloca i32
%10 = alloca i32
%11 = alloca i32
%12 = alloca i32
%13 = alloca double
%14 = alloca double
%15 = alloca i32
%16 = alloca i32
%17 = alloca i32
%18 = alloca i32
%19 = alloca i32
%20 = alloca i32
%21 = alloca double
%22 = alloca double
%23 = alloca double
store double* %0, double** %5
store double* %1, double** %6
store i32 %2, i32* %7
store i32 %3, i32* %8
%24 = load i32, i32* %8
%25 = icmp eq i32 %24, -1
br i1 %25, label %26, label %61
26: ; preds = %4
store i32 0, i32* %9
br label %27
27: ; preds = %57, %26
%28 = load i32, i32* %9
%29 = load i32, i32* %7
%30 = icmp slt i32 %28, %29
br i1 %30, label %31, label %60
31: ; preds = %27
%32 = load double*, double** %5
%33 = load i32, i32* %9
%34 = sext i32 %33 to i64
%35 = getelementptr inbounds double, double* %32, i64 %34
%36 = load double, double* %35
%37 = load i32, i32* %7
%38 = sitofp i32 %37 to double
%39 = fdiv double %36, %38
%40 = load double*, double** %5
%41 = load i32, i32* %9
%42 = sext i32 %41 to i64
%43 = getelementptr inbounds double, double* %40, i64 %42
store double %39, double* %43
%44 = load double*, double** %6
%45 = load i32, i32* %9
%46 = sext i32 %45 to i64
%47 = getelementptr inbounds double, double* %44, i64 %46
%48 = load double, double* %47
%49 = fneg double %48
%50 = load i32, i32* %7
%51 = sitofp i32 %50 to double
%52 = fdiv double %49, %51
%53 = load double*, double** %6
%54 = load i32, i32* %9
%55 = sext i32 %54 to i64
%56 = getelementptr inbounds double, double* %53, i64 %55
store double %52, double* %56
br label %57
57: ; preds = %31
%58 = load i32, i32* %9
%59 = add nsw i32 %58, 1
store i32 %59, i32* %9
br label %27
60: ; preds = %27
br label %61
61: ; preds = %60, %4
%62 = load i32, i32* %7
%63 = call i32 @Calc_power_of_two(i32 %62)
store i32 %63, i32* %12
%64 = load double*, double** %5
%65 = load double*, double** %6
%66 = load i32, i32* %7
%67 = load i32, i32* %12
%68 = call i32 @Make_initial_data(double* %64, double* %65, i32 %66, i32 %67)
%69 = load i32, i32* %7
%70 = sitofp i32 %69 to double
%71 = fdiv double 0x401921FB5444261E, %70
store double %71, double* %13
store i32 2, i32* %15
store i32 0, i32* %9
br label %72
72: ; preds = %196, %61
%73 = load i32, i32* %9
%74 = load i32, i32* %12
%75 = icmp slt i32 %73, %74
br i1 %75, label %76, label %199
76: ; preds = %72
%77 = load i32, i32* %7
%78 = load i32, i32* %15
%79 = sdiv i32 %77, %78
store i32 %79, i32* %17
%80 = load double, double* %13
%81 = load i32, i32* %17
%82 = sitofp i32 %81 to double
%83 = fmul double %80, %82
store double %83, double* %14
%84 = load i32, i32* %15
%85 = sdiv i32 %84, 2
store i32 %85, i32* %16
store i32 0, i32* %10
br label %86
86: ; preds = %165, %76
%87 = load i32, i32* %10
%88 = load i32, i32* %17
%89 = icmp slt i32 %87, %88
br i1 %89, label %90, label %168
90: ; preds = %86
store double 0.000000e+00, double* %23
store i32 0, i32* %11
br label %91
91: ; preds = %161, %90
%92 = load i32, i32* %11
%93 = load i32, i32* %15
%94 = icmp slt i32 %92, %93
br i1 %94, label %95, label %164
95: ; preds = %91
%96 = load i32, i32* %10
%97 = load i32, i32* %15
%98 = mul nsw i32 %96, %97
%99 = load i32, i32* %11
%100 = add nsw i32 %98, %99
store i32 %100, i32* %18
%101 = load i32, i32* %11
%102 = load i32, i32* %16
%103 = icmp slt i32 %101, %102
br i1 %103, label %104, label %109
104: ; preds = %95
%105 = load i32, i32* %18
store i32 %105, i32* %19
%106 = load i32, i32* %19
%107 = load i32, i32* %16
%108 = add nsw i32 %106, %107
store i32 %108, i32* %20
br label %114
109: ; preds = %95
%110 = load i32, i32* %18
store i32 %110, i32* %20
%111 = load i32, i32* %18
%112 = load i32, i32* %16
%113 = sub nsw i32 %111, %112
store i32 %113, i32* %19
br label %114
114: ; preds = %109, %104
%115 = load double*, double** %5
%116 = load i32, i32* %20
%117 = sext i32 %116 to i64
%118 = getelementptr inbounds double, double* %115, i64 %117
%119 = load double, double* %118
store double %119, double* %21
%120 = load double*, double** %6
%121 = load i32, i32* %20
%122 = sext i32 %121 to i64
%123 = getelementptr inbounds double, double* %120, i64 %122
%124 = load double, double* %123
store double %124, double* %22
%125 = load double*, double** %5
%126 = load i32, i32* %19
%127 = sext i32 %126 to i64
%128 = getelementptr inbounds double, double* %125, i64 %127
%129 = load double, double* %128
%130 = load double, double* %21
%131 = load double, double* %23
%132 = call double @cos(double %131)
%133 = call double @llvm.fmuladd.f64(double %130, double %132, double %129)
%134 = load double, double* %22
%135 = load double, double* %23
%136 = call double @sin(double %135)
%137 = call double @llvm.fmuladd.f64(double %134, double %136, double %133)
%138 = load i32, i32* %18
%139 = sext i32 %138 to i64
%140 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.re_part_new, i64 0, i64 %139
store double %137, double* %140
%141 = load double*, double** %6
%142 = load i32, i32* %19
%143 = sext i32 %142 to i64
%144 = getelementptr inbounds double, double* %141, i64 %143
%145 = load double, double* %144
%146 = load double, double* %22
%147 = load double, double* %23
%148 = call double @cos(double %147)
%149 = call double @llvm.fmuladd.f64(double %146, double %148, double %145)
%150 = load double, double* %21
%151 = load double, double* %23
%152 = call double @sin(double %151)
%153 = fneg double %150
%154 = call double @llvm.fmuladd.f64(double %153, double %152, double %149)
%155 = load i32, i32* %18
%156 = sext i32 %155 to i64
%157 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.im_part_new, i64 0, i64 %156
store double %154, double* %157
%158 = load double, double* %23
%159 = load double, double* %14
%160 = fadd double %158, %159
store double %160, double* %23
br label %161
161: ; preds = %114
%162 = load i32, i32* %11
%163 = add nsw i32 %162, 1
store i32 %163, i32* %11
br label %91
164: ; preds = %91
br label %165
165: ; preds = %164
%166 = load i32, i32* %10
%167 = add nsw i32 %166, 1
store i32 %167, i32* %10
br label %86
168: ; preds = %86
store i32 0, i32* %10
br label %169
169: ; preds = %190, %168
%170 = load i32, i32* %10
%171 = load i32, i32* %7
%172 = icmp slt i32 %170, %171
br i1 %172, label %173, label %193
173: ; preds = %169
%174 = load i32, i32* %10
%175 = sext i32 %174 to i64
%176 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.re_part_new, i64 0, i64 %175
%177 = load double, double* %176
%178 = load double*, double** %5
%179 = load i32, i32* %10
%180 = sext i32 %179 to i64
%181 = getelementptr inbounds double, double* %178, i64 %180
store double %177, double* %181
%182 = load i32, i32* %10
%183 = sext i32 %182 to i64
%184 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.im_part_new, i64 0, i64 %183
%185 = load double, double* %184
%186 = load double*, double** %6
%187 = load i32, i32* %10
%188 = sext i32 %187 to i64
%189 = getelementptr inbounds double, double* %186, i64 %188
store double %185, double* %189
br label %190
190: ; preds = %173
%191 = load i32, i32* %10
%192 = add nsw i32 %191, 1
store i32 %192, i32* %10
br label %169
193: ; preds = %169
%194 = load i32, i32* %15
%195 = mul nsw i32 %194, 2
store i32 %195, i32* %15
br label %196
196: ; preds = %193
%197 = load i32, i32* %9
%198 = add nsw i32 %197, 1
store i32 %198, i32* %9
br label %72
199: ; preds = %72
%200 = load i32, i32* %8
%201 = icmp eq i32 %200, -1
br i1 %201, label %202, label %222
202: ; preds = %199
store i32 0, i32* %10
br label %203
203: ; preds = %218, %202
%204 = load i32, i32* %10
%205 = load i32, i32* %7
%206 = icmp slt i32 %204, %205
br i1 %206, label %207, label %221
207: ; preds = %203
%208 = load double*, double** %6
%209 = load i32, i32* %10
%210 = sext i32 %209 to i64
%211 = getelementptr inbounds double, double* %208, i64 %210
%212 = load double, double* %211
%213 = fneg double %212
%214 = load double*, double** %6
%215 = load i32, i32* %10
%216 = sext i32 %215 to i64
%217 = getelementptr inbounds double, double* %214, i64 %216
store double %213, double* %217
br label %218
218: ; preds = %207
%219 = load i32, i32* %10
%220 = add nsw i32 %219, 1
store i32 %220, i32* %10
br label %203
221: ; preds = %203
br label %222
222: ; preds = %221, %199
ret void
}

LLVM IR (-O2):
@FFT1.re_part_new = internal unnamed_addr global [256 x double] zeroinitializer
@FFT1.im_part_new = internal unnamed_addr global [256 x double] zeroinitializer
define void @FFT1(double* %0, double* %1, i32 %2, i32 %3) {
%5 = icmp eq i32 %3, -1
%6 = icmp sgt i32 %2, 0
%7 = and i1 %5, %6
%8 = sitofp i32 %2 to double
br i1 %7, label %9, label %52
9: ; preds = %4
%10 = zext i32 %2 to i64
%11 = icmp ult i32 %2, 2
br i1 %11, label %39, label %12
12: ; preds = %9
%13 = getelementptr double, double* %0, i64 %10
%14 = getelementptr double, double* %1, i64 %10
%15 = icmp ugt double* %14, %0
%16 = icmp ugt double* %13, %1
%17 = and i1 %15, %16
br i1 %17, label %39, label %18
18: ; preds = %12
%19 = and i64 %10, 4294967294
%20 = insertelement <2 x double> poison, double %8, i64 0
%21 = shufflevector <2 x double> %20, <2 x double> poison, <2 x i32> zeroinitializer
br label %22
22: ; preds = %22, %18
%23 = phi i64 [ 0, %18 ], [ %35, %22 ]
%24 = getelementptr inbounds double, double* %0, i64 %23
%25 = bitcast double* %24 to <2 x double>*
%26 = load <2 x double>, <2 x double>* %25
%27 = fdiv <2 x double> %26, %21
%28 = bitcast double* %24 to <2 x double>*
store <2 x double> %27, <2 x double>* %28
%29 = getelementptr inbounds double, double* %1, i64 %23
%30 = bitcast double* %29 to <2 x double>*
%31 = load <2 x double>, <2 x double>* %30
%32 = fneg <2 x double> %31
%33 = fdiv <2 x double> %32, %21
%34 = bitcast double* %29 to <2 x double>*
store <2 x double> %33, <2 x double>* %34
%35 = add nuw i64 %23, 2
%36 = icmp eq i64 %35, %19
br i1 %36, label %37, label %22
37: ; preds = %22
%38 = icmp eq i64 %19, %10
br i1 %38, label %52, label %39
39: ; preds = %12, %9, %37
%40 = phi i64 [ 0, %12 ], [ 0, %9 ], [ %19, %37 ]
br label %41
41: ; preds = %39, %41
%42 = phi i64 [ %50, %41 ], [ %40, %39 ]
%43 = getelementptr inbounds double, double* %0, i64 %42
%44 = load double, double* %43
%45 = fdiv double %44, %8
store double %45, double* %43
%46 = getelementptr inbounds double, double* %1, i64 %42
%47 = load double, double* %46
%48 = fneg double %47
%49 = fdiv double %48, %8
store double %49, double* %46
%50 = add nuw nsw i64 %42, 1
%51 = icmp eq i64 %50, %10
br i1 %51, label %52, label %41
52: ; preds = %41, %37, %4
%53 = tail call i32 @Calc_power_of_two(i32 %2)
%54 = tail call i32 @Make_initial_data(double* %0, double* %1, i32 %2, i32 %53)
%55 = fdiv double 0x401921FB5444261E, %8
%56 = icmp sgt i32 %53, 0
br i1 %56, label %57, label %242
57: ; preds = %52
%58 = zext i32 %2 to i64
%59 = getelementptr double, double* %0, i64 %58
%60 = getelementptr double, double* %1, i64 %58
%61 = and i64 %58, 4294967292
%62 = add nsw i64 %61, -4
%63 = lshr exact i64 %62, 2
%64 = add nuw nsw i64 %63, 1
%65 = icmp ult i32 %2, 4
%66 = icmp ugt double* %60, %0
%67 = icmp ugt double* %59, %1
%68 = and i1 %66, %67
%69 = and i64 %58, 4294967292
%70 = and i64 %64, 1
%71 = icmp eq i64 %62, 0
%72 = and i64 %64, 9223372036854775806
%73 = icmp eq i64 %70, 0
%74 = icmp eq i64 %69, %58
%75 = and i64 %58, 1
%76 = icmp eq i64 %75, 0
%77 = sub nsw i64 0, %58
br label %78
78: ; preds = %57, %238
%79 = phi i32 [ 0, %57 ], [ %240, %238 ]
%80 = phi i32 [ 2, %57 ], [ %239, %238 ]
%81 = sdiv i32 %2, %80
%82 = sitofp i32 %81 to double
%83 = fmul double %55, %82
%84 = lshr exact i32 %80, 1
%85 = icmp sgt i32 %81, 0
br i1 %85, label %86, label %94
86: ; preds = %78
%87 = icmp sgt i32 %80, 0
%88 = zext i32 %84 to i64
%89 = sext i32 %80 to i64
%90 = zext i32 %81 to i64
%91 = zext i32 %80 to i64
%92 = zext i32 %84 to i64
%93 = zext i32 %84 to i64
br label %183
94: ; preds = %218, %78
br i1 %6, label %95, label %238
95: ; preds = %94
%96 = or i1 %65, %68
br i1 %96, label %169, label %97
97: ; preds = %95
br i1 %71, label %145, label %98
98: ; preds = %97, %98
%99 = phi i64 [ %142, %98 ], [ 0, %97 ]
%100 = phi i64 [ %143, %98 ], [ 0, %97 ]
%101 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.re_part_new, i64 0, i64 %99
%102 = bitcast double* %101 to <2 x double>*
%103 = load <2 x double>, <2 x double>* %102
%104 = getelementptr inbounds double, double* %101, i64 2
%105 = bitcast double* %104 to <2 x double>*
%106 = load <2 x double>, <2 x double>* %105
%107 = getelementptr inbounds double, double* %0, i64 %99
%108 = bitcast double* %107 to <2 x double>*
store <2 x double> %103, <2 x double>* %108
%109 = getelementptr inbounds double, double* %107, i64 2
%110 = bitcast double* %109 to <2 x double>*
store <2 x double> %106, <2 x double>* %110
%111 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.im_part_new, i64 0, i64 %99
%112 = bitcast double* %111 to <2 x double>*
%113 = load <2 x double>, <2 x double>* %112
%114 = getelementptr inbounds double, double* %111, i64 2
%115 = bitcast double* %114 to <2 x double>*
%116 = load <2 x double>, <2 x double>* %115
%117 = getelementptr inbounds double, double* %1, i64 %99
%118 = bitcast double* %117 to <2 x double>*
store <2 x double> %113, <2 x double>* %118
%119 = getelementptr inbounds double, double* %117, i64 2
%120 = bitcast double* %119 to <2 x double>*
store <2 x double> %116, <2 x double>* %120
%121 = or i64 %99, 4
%122 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.re_part_new, i64 0, i64 %121
%123 = bitcast double* %122 to <2 x double>*
%124 = load <2 x double>, <2 x double>* %123
%125 = getelementptr inbounds double, double* %122, i64 2
%126 = bitcast double* %125 to <2 x double>*
%127 = load <2 x double>, <2 x double>* %126
%128 = getelementptr inbounds double, double* %0, i64 %121
%129 = bitcast double* %128 to <2 x double>*
store <2 x double> %124, <2 x double>* %129
%130 = getelementptr inbounds double, double* %128, i64 2
%131 = bitcast double* %130 to <2 x double>*
store <2 x double> %127, <2 x double>* %131
%132 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.im_part_new, i64 0, i64 %121
%133 = bitcast double* %132 to <2 x double>*
%134 = load <2 x double>, <2 x double>* %133
%135 = getelementptr inbounds double, double* %132, i64 2
%136 = bitcast double* %135 to <2 x double>*
%137 = load <2 x double>, <2 x double>* %136
%138 = getelementptr inbounds double, double* %1, i64 %121
%139 = bitcast double* %138 to <2 x double>*
store <2 x double> %134, <2 x double>* %139
%140 = getelementptr inbounds double, double* %138, i64 2
%141 = bitcast double* %140 to <2 x double>*
store <2 x double> %137, <2 x double>* %141
%142 = add nuw i64 %99, 8
%143 = add i64 %100, 2
%144 = icmp eq i64 %143, %72
br i1 %144, label %145, label %98
145: ; preds = %98, %97
%146 = phi i64 [ 0, %97 ], [ %142, %98 ]
br i1 %73, label %168, label %147
147: ; preds = %145
%148 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.re_part_new, i64 0, i64 %146
%149 = bitcast double* %148 to <2 x double>*
%150 = load <2 x double>, <2 x double>* %149
%151 = getelementptr inbounds double, double* %148, i64 2
%152 = bitcast double* %151 to <2 x double>*
%153 = load <2 x double>, <2 x double>* %152
%154 = getelementptr inbounds double, double* %0, i64 %146
%155 = bitcast double* %154 to <2 x double>*
store <2 x double> %150, <2 x double>* %155
%156 = getelementptr inbounds double, double* %154, i64 2
%157 = bitcast double* %156 to <2 x double>*
store <2 x double> %153, <2 x double>* %157
%158 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.im_part_new, i64 0, i64 %146
%159 = bitcast double* %158 to <2 x double>*
%160 = load <2 x double>, <2 x double>* %159
%161 = getelementptr inbounds double, double* %158, i64 2
%162 = bitcast double* %161 to <2 x double>*
%163 = load <2 x double>, <2 x double>* %162
%164 = getelementptr inbounds double, double* %1, i64 %146
%165 = bitcast double* %164 to <2 x double>*
store <2 x double> %160, <2 x double>* %165
%166 = getelementptr inbounds double, double* %164, i64 2
%167 = bitcast double* %166 to <2 x double>*
store <2 x double> %163, <2 x double>* %167
br label %168
168: ; preds = %145, %147
br i1 %74, label %238, label %169
169: ; preds = %95, %168
%170 = phi i64 [ 0, %95 ], [ %69, %168 ]
%171 = xor i64 %170, -1
br i1 %76, label %180, label %172
172: ; preds = %169
%173 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.re_part_new, i64 0, i64 %170
%174 = load double, double* %173
%175 = getelementptr inbounds double, double* %0, i64 %170
store double %174, double* %175
%176 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.im_part_new, i64 0, i64 %170
%177 = load double, double* %176
%178 = getelementptr inbounds double, double* %1, i64 %170
store double %177, double* %178
%179 = or i64 %170, 1
br label %180
180: ; preds = %172, %169
%181 = phi i64 [ %170, %169 ], [ %179, %172 ]
%182 = icmp eq i64 %171, %77
br i1 %182, label %238, label %221
183: ; preds = %86, %218
%184 = phi i64 [ 0, %86 ], [ %219, %218 ]
br i1 %87, label %185, label %218
185: ; preds = %183
%186 = mul nsw i64 %184, %89
br label %187
187: ; preds = %185, %187
%188 = phi i64 [ 0, %185 ], [ %216, %187 ]
%189 = phi double [ 0.000000e+00, %185 ], [ %215, %187 ]
%190 = add nsw i64 %188, %186
%191 = icmp ult i64 %188, %88
%192 = select i1 %191, i64 0, i64 %92
%193 = sub nsw i64 %190, %192
%194 = select i1 %191, i64 %93, i64 0
%195 = add nsw i64 %194, %190
%196 = getelementptr inbounds double, double* %0, i64 %195
%197 = load double, double* %196
%198 = getelementptr inbounds double, double* %1, i64 %195
%199 = load double, double* %198
%200 = getelementptr inbounds double, double* %0, i64 %193
%201 = load double, double* %200
%202 = tail call double @cos(double %189)
%203 = tail call double @llvm.fmuladd.f64(double %197, double %202, double %201)
%204 = tail call double @sin(double %189)
%205 = tail call double @llvm.fmuladd.f64(double %199, double %204, double %203)
%206 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.re_part_new, i64 0, i64 %190
store double %205, double* %206
%207 = getelementptr inbounds double, double* %1, i64 %193
%208 = load double, double* %207
%209 = tail call double @cos(double %189)
%210 = tail call double @llvm.fmuladd.f64(double %199, double %209, double %208)
%211 = tail call double @sin(double %189)
%212 = fneg double %197
%213 = tail call double @llvm.fmuladd.f64(double %212, double %211, double %210)
%214 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.im_part_new, i64 0, i64 %190
store double %213, double* %214
%215 = fadd double %83, %189
%216 = add nuw nsw i64 %188, 1
%217 = icmp eq i64 %216, %91
br i1 %217, label %218, label %187
218: ; preds = %187, %183
%219 = add nuw nsw i64 %184, 1
%220 = icmp eq i64 %219, %90
br i1 %220, label %94, label %183
221: ; preds = %180, %221
%222 = phi i64 [ %236, %221 ], [ %181, %180 ]
%223 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.re_part_new, i64 0, i64 %222
%224 = load double, double* %223
%225 = getelementptr inbounds double, double* %0, i64 %222
store double %224, double* %225
%226 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.im_part_new, i64 0, i64 %222
%227 = load double, double* %226
%228 = getelementptr inbounds double, double* %1, i64 %222
store double %227, double* %228
%229 = add nuw nsw i64 %222, 1
%230 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.re_part_new, i64 0, i64 %229
%231 = load double, double* %230
%232 = getelementptr inbounds double, double* %0, i64 %229
store double %231, double* %232
%233 = getelementptr inbounds [256 x double], [256 x double]* @FFT1.im_part_new, i64 0, i64 %229
%234 = load double, double* %233
%235 = getelementptr inbounds double, double* %1, i64 %229
store double %234, double* %235
%236 = add nuw nsw i64 %222, 2
%237 = icmp eq i64 %236, %58
br i1 %237, label %238, label %221
238: ; preds = %180, %221, %168, %94
%239 = shl nsw i32 %80, 1
%240 = add nuw nsw i32 %79, 1
%241 = icmp eq i32 %240, %53
br i1 %241, label %242, label %78
242: ; preds = %238, %52
br i1 %7, label %243, label %307
243: ; preds = %242
%244 = zext i32 %2 to i64
%245 = icmp ult i32 %2, 4
br i1 %245, label %298, label %246
246: ; preds = %243
%247 = and i64 %244, 4294967292
%248 = add nsw i64 %247, -4
%249 = lshr exact i64 %248, 2
%250 = add nuw nsw i64 %249, 1
%251 = and i64 %250, 1
%252 = icmp eq i64 %248, 0
br i1 %252, label %282, label %253
253: ; preds = %246
%254 = and i64 %250, 9223372036854775806
br label %255
255: ; preds = %255, %253
%256 = phi i64 [ 0, %253 ], [ %279, %255 ]
%257 = phi i64 [ 0, %253 ], [ %280, %255 ]
%258 = getelementptr inbounds double, double* %1, i64 %256
%259 = bitcast double* %258 to <2 x double>*
%260 = load <2 x double>, <2 x double>* %259
%261 = getelementptr inbounds double, double* %258, i64 2
%262 = bitcast double* %261 to <2 x double>*
%263 = load <2 x double>, <2 x double>* %262
%264 = fneg <2 x double> %260
%265 = fneg <2 x double> %263
%266 = bitcast double* %258 to <2 x double>*
store <2 x double> %264, <2 x double>* %266
%267 = bitcast double* %261 to <2 x double>*
store <2 x double> %265, <2 x double>* %267
%268 = or i64 %256, 4
%269 = getelementptr inbounds double, double* %1, i64 %268
%270 = bitcast double* %269 to <2 x double>*
%271 = load <2 x double>, <2 x double>* %270
%272 = getelementptr inbounds double, double* %269, i64 2
%273 = bitcast double* %272 to <2 x double>*
%274 = load <2 x double>, <2 x double>* %273
%275 = fneg <2 x double> %271
%276 = fneg <2 x double> %274
%277 = bitcast double* %269 to <2 x double>*
store <2 x double> %275, <2 x double>* %277
%278 = bitcast double* %272 to <2 x double>*
store <2 x double> %276, <2 x double>* %278
%279 = add nuw i64 %256, 8
%280 = add i64 %257, 2
%281 = icmp eq i64 %280, %254
br i1 %281, label %282, label %255
282: ; preds = %255, %246
%283 = phi i64 [ 0, %246 ], [ %279, %255 ]
%284 = icmp eq i64 %251, 0
br i1 %284, label %296, label %285
285: ; preds = %282
%286 = getelementptr inbounds double, double* %1, i64 %283
%287 = bitcast double* %286 to <2 x double>*
%288 = load <2 x double>, <2 x double>* %287
%289 = getelementptr inbounds double, double* %286, i64 2
%290 = bitcast double* %289 to <2 x double>*
%291 = load <2 x double>, <2 x double>* %290
%292 = fneg <2 x double> %288
%293 = fneg <2 x double> %291
%294 = bitcast double* %286 to <2 x double>*
store <2 x double> %292, <2 x double>* %294
%295 = bitcast double* %289 to <2 x double>*
store <2 x double> %293, <2 x double>* %295
br label %296
296: ; preds = %282, %285
%297 = icmp eq i64 %247, %244
br i1 %297, label %307, label %298
298: ; preds = %243, %296
%299 = phi i64 [ 0, %243 ], [ %247, %296 ]
br label %300
300: ; preds = %298, %300
%301 = phi i64 [ %305, %300 ], [ %299, %298 ]
%302 = getelementptr inbounds double, double* %1, i64 %301
%303 = load double, double* %302
%304 = fneg double %303
store double %304, double* %302
%305 = add nuw nsw i64 %301, 1
%306 = icmp eq i64 %305, %244
br i1 %306, label %307, label %300
307: ; preds = %300, %296, %242
ret void
}