#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 /*<<< orphan*/ cft1st_128(float *);
int /*<<< orphan*/ cftmdl_128(float *);
void cftfsub_128(float *a) {
  int j, j1, j2, j3, l;
  float x0r, x0i, x1r, x1i, x2r, x2i, x3r, x3i;
  cft1st_128(a);
  cftmdl_128(a);
  l = 32;
  for (j = 0; j < l; j += 2) {
    j1 = j + l;
    j2 = j1 + l;
    j3 = j2 + l;
    x0r = a[j] + a[j1];
    x0i = a[j + 1] + a[j1 + 1];
    x1r = a[j] - a[j1];
    x1i = a[j + 1] - a[j1 + 1];
    x2r = a[j2] + a[j3];
    x2i = a[j2 + 1] + a[j3 + 1];
    x3r = a[j2] - a[j3];
    x3i = a[j2 + 1] - a[j3 + 1];
    a[j] = x0r + x2r;
    a[j + 1] = x0i + x2i;
    a[j2] = x0r - x2r;
    a[j2 + 1] = x0i - x2i;
    a[j1] = x1r - x3i;
    a[j1 + 1] = x1i + x3r;
    a[j3] = x1r + x3i;
    a[j3 + 1] = x1i - x3r;
  }
}


x86 assembly (clang, -O0):
<cftfsub_128>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rdi
call   1030 <cft1st_128@plt>
mov    -0x8(%rbp),%rdi
call   1040 <cftmdl_128@plt>
movl   $0x20,-0x1c(%rbp)
movl   $0x0,-0xc(%rbp)
mov    -0xc(%rbp),%eax
cmp    -0x1c(%rbp),%eax
jge    136d <cftfsub_128+0x24d>
mov    -0xc(%rbp),%eax
add    -0x1c(%rbp),%eax
mov    %eax,-0x10(%rbp)
mov    -0x10(%rbp),%eax
add    -0x1c(%rbp),%eax
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%eax
add    -0x1c(%rbp),%eax
mov    %eax,-0x18(%rbp)
mov    -0x8(%rbp),%rax
movslq -0xc(%rbp),%rcx
movss  (%rax,%rcx,4),%xmm0
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
addss  (%rax,%rcx,4),%xmm0
movss  %xmm0,-0x20(%rbp)
mov    -0x8(%rbp),%rax
mov    -0xc(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
movss  (%rax,%rcx,4),%xmm0
mov    -0x8(%rbp),%rax
mov    -0x10(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
addss  (%rax,%rcx,4),%xmm0
movss  %xmm0,-0x24(%rbp)
mov    -0x8(%rbp),%rax
movslq -0xc(%rbp),%rcx
movss  (%rax,%rcx,4),%xmm0
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
subss  (%rax,%rcx,4),%xmm0
movss  %xmm0,-0x28(%rbp)
mov    -0x8(%rbp),%rax
mov    -0xc(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
movss  (%rax,%rcx,4),%xmm0
mov    -0x8(%rbp),%rax
mov    -0x10(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
subss  (%rax,%rcx,4),%xmm0
movss  %xmm0,-0x2c(%rbp)
mov    -0x8(%rbp),%rax
movslq -0x14(%rbp),%rcx
movss  (%rax,%rcx,4),%xmm0
mov    -0x8(%rbp),%rax
movslq -0x18(%rbp),%rcx
addss  (%rax,%rcx,4),%xmm0
movss  %xmm0,-0x30(%rbp)
mov    -0x8(%rbp),%rax
mov    -0x14(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
movss  (%rax,%rcx,4),%xmm0
mov    -0x8(%rbp),%rax
mov    -0x18(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
addss  (%rax,%rcx,4),%xmm0
movss  %xmm0,-0x34(%rbp)
mov    -0x8(%rbp),%rax
movslq -0x14(%rbp),%rcx
movss  (%rax,%rcx,4),%xmm0
mov    -0x8(%rbp),%rax
movslq -0x18(%rbp),%rcx
subss  (%rax,%rcx,4),%xmm0
movss  %xmm0,-0x38(%rbp)
mov    -0x8(%rbp),%rax
mov    -0x14(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
movss  (%rax,%rcx,4),%xmm0
mov    -0x8(%rbp),%rax
mov    -0x18(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
subss  (%rax,%rcx,4),%xmm0
movss  %xmm0,-0x3c(%rbp)
movss  -0x20(%rbp),%xmm0
addss  -0x30(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movslq -0xc(%rbp),%rcx
movss  %xmm0,(%rax,%rcx,4)
movss  -0x24(%rbp),%xmm0
addss  -0x34(%rbp),%xmm0
mov    -0x8(%rbp),%rax
mov    -0xc(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
movss  %xmm0,(%rax,%rcx,4)
movss  -0x20(%rbp),%xmm0
subss  -0x30(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movslq -0x14(%rbp),%rcx
movss  %xmm0,(%rax,%rcx,4)
movss  -0x24(%rbp),%xmm0
subss  -0x34(%rbp),%xmm0
mov    -0x8(%rbp),%rax
mov    -0x14(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
movss  %xmm0,(%rax,%rcx,4)
movss  -0x28(%rbp),%xmm0
subss  -0x3c(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
movss  %xmm0,(%rax,%rcx,4)
movss  -0x2c(%rbp),%xmm0
addss  -0x38(%rbp),%xmm0
mov    -0x8(%rbp),%rax
mov    -0x10(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
movss  %xmm0,(%rax,%rcx,4)
movss  -0x28(%rbp),%xmm0
addss  -0x3c(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movslq -0x18(%rbp),%rcx
movss  %xmm0,(%rax,%rcx,4)
movss  -0x2c(%rbp),%xmm0
subss  -0x38(%rbp),%xmm0
mov    -0x8(%rbp),%rax
mov    -0x18(%rbp),%ecx
add    $0x1,%ecx
movslq %ecx,%rcx
movss  %xmm0,(%rax,%rcx,4)
mov    -0xc(%rbp),%eax
add    $0x2,%eax
mov    %eax,-0xc(%rbp)
jmp    114c <cftfsub_128+0x2c>
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<cftfsub_128>:
push   %rbx
mov    %rdi,%rbx
call   1030 <cft1st_128@plt>
mov    %rbx,%rdi
call   1040 <cftmdl_128@plt>
movups (%rbx),%xmm2
movups 0x10(%rbx),%xmm4
movups 0x20(%rbx),%xmm9
movups 0x30(%rbx),%xmm8
movaps %xmm2,%xmm10
shufps $0x88,%xmm4,%xmm10
shufps $0xdd,%xmm4,%xmm2
movups 0x90(%rbx),%xmm4
movups 0x80(%rbx),%xmm5
movaps %xmm5,%xmm1
shufps $0x88,%xmm4,%xmm1
shufps $0xdd,%xmm4,%xmm5
movaps %xmm10,%xmm6
addps  %xmm1,%xmm6
movaps %xmm2,%xmm7
addps  %xmm5,%xmm7
subps  %xmm1,%xmm10
subps  %xmm5,%xmm2
movups 0x110(%rbx),%xmm1
movups 0x100(%rbx),%xmm4
movaps %xmm4,%xmm11
shufps $0x88,%xmm1,%xmm11
shufps $0xdd,%xmm1,%xmm4
movups 0x190(%rbx),%xmm1
movups 0x180(%rbx),%xmm0
movaps %xmm0,%xmm3
shufps $0x88,%xmm1,%xmm3
shufps $0xdd,%xmm1,%xmm0
movaps %xmm11,%xmm12
addps  %xmm3,%xmm12
movaps %xmm4,%xmm5
addps  %xmm0,%xmm5
subps  %xmm3,%xmm11
subps  %xmm0,%xmm4
movaps %xmm6,%xmm0
addps  %xmm12,%xmm0
movaps %xmm7,%xmm3
addps  %xmm5,%xmm3
movaps %xmm0,%xmm1
unpckhps %xmm3,%xmm1
unpcklps %xmm3,%xmm0
movups %xmm0,(%rbx)
movups %xmm1,0x10(%rbx)
subps  %xmm12,%xmm6
subps  %xmm5,%xmm7
movaps %xmm6,%xmm0
unpckhps %xmm7,%xmm0
unpcklps %xmm7,%xmm6
movups %xmm6,0x100(%rbx)
movups %xmm0,0x110(%rbx)
movaps %xmm10,%xmm0
subps  %xmm4,%xmm0
movaps %xmm2,%xmm1
addps  %xmm11,%xmm1
movaps %xmm0,%xmm3
unpckhps %xmm1,%xmm3
unpcklps %xmm1,%xmm0
movups %xmm0,0x80(%rbx)
movups %xmm3,0x90(%rbx)
addps  %xmm10,%xmm4
subps  %xmm11,%xmm2
movaps %xmm4,%xmm0
unpckhps %xmm2,%xmm0
unpcklps %xmm2,%xmm4
movups %xmm4,0x180(%rbx)
movups %xmm0,0x190(%rbx)
movaps %xmm9,%xmm10
shufps $0x88,%xmm8,%xmm10
shufps $0xdd,%xmm8,%xmm9
movups 0xb0(%rbx),%xmm0
movups 0xa0(%rbx),%xmm1
movaps %xmm1,%xmm3
shufps $0x88,%xmm0,%xmm3
shufps $0xdd,%xmm0,%xmm1
movaps %xmm10,%xmm4
addps  %xmm3,%xmm4
movaps %xmm9,%xmm5
addps  %xmm1,%xmm5
subps  %xmm3,%xmm10
subps  %xmm1,%xmm9
movups 0x130(%rbx),%xmm0
movups 0x120(%rbx),%xmm1
movaps %xmm1,%xmm8
shufps $0x88,%xmm0,%xmm8
shufps $0xdd,%xmm0,%xmm1
movups 0x1b0(%rbx),%xmm0
movups 0x1a0(%rbx),%xmm6
movaps %xmm6,%xmm7
shufps $0x88,%xmm0,%xmm7
shufps $0xdd,%xmm0,%xmm6
movaps %xmm8,%xmm0
addps  %xmm7,%xmm0
movaps %xmm1,%xmm2
addps  %xmm6,%xmm2
subps  %xmm7,%xmm8
subps  %xmm6,%xmm1
movaps %xmm4,%xmm6
addps  %xmm0,%xmm6
movaps %xmm5,%xmm7
addps  %xmm2,%xmm7
movaps %xmm6,%xmm3
unpckhps %xmm7,%xmm3
unpcklps %xmm7,%xmm6
movups %xmm6,0x20(%rbx)
movups %xmm3,0x30(%rbx)
subps  %xmm0,%xmm4
subps  %xmm2,%xmm5
movaps %xmm4,%xmm0
unpckhps %xmm5,%xmm0
unpcklps %xmm5,%xmm4
movups %xmm4,0x120(%rbx)
movups %xmm0,0x130(%rbx)
movaps %xmm10,%xmm0
subps  %xmm1,%xmm0
movaps %xmm9,%xmm2
addps  %xmm8,%xmm2
movaps %xmm0,%xmm3
unpckhps %xmm2,%xmm3
unpcklps %xmm2,%xmm0
movups %xmm0,0xa0(%rbx)
movups %xmm3,0xb0(%rbx)
addps  %xmm10,%xmm1
subps  %xmm8,%xmm9
movaps %xmm1,%xmm0
unpckhps %xmm9,%xmm0
unpcklps %xmm9,%xmm1
movups %xmm1,0x1a0(%rbx)
movups %xmm0,0x1b0(%rbx)
movups 0x50(%rbx),%xmm2
movups 0x40(%rbx),%xmm0
movaps %xmm0,%xmm8
shufps $0x88,%xmm2,%xmm8
shufps $0xdd,%xmm2,%xmm0
movups 0xd0(%rbx),%xmm2
movups 0xc0(%rbx),%xmm3
movaps %xmm3,%xmm6
shufps $0x88,%xmm2,%xmm6
shufps $0xdd,%xmm2,%xmm3
movaps %xmm8,%xmm4
addps  %xmm6,%xmm4
movaps %xmm0,%xmm5
addps  %xmm3,%xmm5
subps  %xmm6,%xmm8
subps  %xmm3,%xmm0
movups 0x150(%rbx),%xmm6
movups 0x140(%rbx),%xmm2
movaps %xmm2,%xmm9
shufps $0x88,%xmm6,%xmm9
shufps $0xdd,%xmm6,%xmm2
movups 0x1d0(%rbx),%xmm6
movups 0x1c0(%rbx),%xmm7
movaps %xmm7,%xmm1
shufps $0x88,%xmm6,%xmm1
shufps $0xdd,%xmm6,%xmm7
movaps %xmm9,%xmm6
addps  %xmm1,%xmm6
movaps %xmm2,%xmm10
addps  %xmm7,%xmm10
subps  %xmm1,%xmm9
subps  %xmm7,%xmm2
movaps %xmm4,%xmm1
addps  %xmm6,%xmm1
movaps %xmm5,%xmm7
addps  %xmm10,%xmm7
movaps %xmm1,%xmm3
unpcklps %xmm7,%xmm3
unpckhps %xmm7,%xmm1
movups %xmm1,0x50(%rbx)
movups %xmm3,0x40(%rbx)
subps  %xmm6,%xmm4
subps  %xmm10,%xmm5
movaps %xmm4,%xmm1
unpcklps %xmm5,%xmm1
unpckhps %xmm5,%xmm4
movups %xmm4,0x150(%rbx)
movups %xmm1,0x140(%rbx)
movaps %xmm8,%xmm1
subps  %xmm2,%xmm1
movaps %xmm0,%xmm3
addps  %xmm9,%xmm3
movaps %xmm1,%xmm4
unpckhps %xmm3,%xmm4
unpcklps %xmm3,%xmm1
movups %xmm1,0xc0(%rbx)
movups %xmm4,0xd0(%rbx)
addps  %xmm8,%xmm2
subps  %xmm9,%xmm0
movaps %xmm2,%xmm1
unpckhps %xmm0,%xmm1
unpcklps %xmm0,%xmm2
movups %xmm2,0x1c0(%rbx)
movups %xmm1,0x1d0(%rbx)
movups 0x60(%rbx),%xmm0
movups 0x70(%rbx),%xmm2
movups 0xe0(%rbx),%xmm3
movups 0xf0(%rbx),%xmm4
movaps %xmm0,%xmm8
shufps $0x88,%xmm2,%xmm8
shufps $0xdd,%xmm2,%xmm0
movaps %xmm3,%xmm2
shufps $0x88,%xmm4,%xmm2
shufps $0xdd,%xmm4,%xmm3
movaps %xmm8,%xmm4
addps  %xmm2,%xmm4
movaps %xmm0,%xmm5
addps  %xmm3,%xmm5
subps  %xmm2,%xmm8
subps  %xmm3,%xmm0
movups 0x170(%rbx),%xmm6
movups 0x160(%rbx),%xmm2
movaps %xmm2,%xmm9
shufps $0x88,%xmm6,%xmm9
shufps $0xdd,%xmm6,%xmm2
movups 0x1f0(%rbx),%xmm6
movups 0x1e0(%rbx),%xmm7
movaps %xmm7,%xmm1
shufps $0x88,%xmm6,%xmm1
shufps $0xdd,%xmm6,%xmm7
movaps %xmm9,%xmm6
addps  %xmm1,%xmm6
movaps %xmm2,%xmm10
addps  %xmm7,%xmm10
subps  %xmm1,%xmm9
subps  %xmm7,%xmm2
movaps %xmm4,%xmm1
addps  %xmm6,%xmm1
movaps %xmm5,%xmm7
addps  %xmm10,%xmm7
movaps %xmm1,%xmm3
unpcklps %xmm7,%xmm3
unpckhps %xmm7,%xmm1
movups %xmm1,0x70(%rbx)
movups %xmm3,0x60(%rbx)
subps  %xmm6,%xmm4
subps  %xmm10,%xmm5
movaps %xmm4,%xmm1
unpcklps %xmm5,%xmm1
unpckhps %xmm5,%xmm4
movups %xmm4,0x170(%rbx)
movups %xmm1,0x160(%rbx)
movaps %xmm8,%xmm1
subps  %xmm2,%xmm1
movaps %xmm0,%xmm3
addps  %xmm9,%xmm3
movaps %xmm1,%xmm4
unpcklps %xmm3,%xmm4
unpckhps %xmm3,%xmm1
movups %xmm1,0xf0(%rbx)
movups %xmm4,0xe0(%rbx)
addps  %xmm8,%xmm2
subps  %xmm9,%xmm0
movaps %xmm2,%xmm1
unpcklps %xmm0,%xmm1
unpckhps %xmm0,%xmm2
movups %xmm2,0x1f0(%rbx)
movups %xmm1,0x1e0(%rbx)
pop    %rbx
ret

LLVM IR (-O0):
define void @cftfsub_128(float* %0) {
%2 = alloca float*
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
%6 = alloca i32
%7 = alloca i32
%8 = alloca float
%9 = alloca float
%10 = alloca float
%11 = alloca float
%12 = alloca float
%13 = alloca float
%14 = alloca float
%15 = alloca float
store float* %0, float** %2
%16 = load float*, float** %2
%17 = call i32 @cft1st_128(float* %16)
%18 = load float*, float** %2
%19 = call i32 @cftmdl_128(float* %18)
store i32 32, i32* %7
store i32 0, i32* %3
br label %20
20: ; preds = %190, %1
%21 = load i32, i32* %3
%22 = load i32, i32* %7
%23 = icmp slt i32 %21, %22
br i1 %23, label %24, label %193
24: ; preds = %20
%25 = load i32, i32* %3
%26 = load i32, i32* %7
%27 = add nsw i32 %25, %26
store i32 %27, i32* %4
%28 = load i32, i32* %4
%29 = load i32, i32* %7
%30 = add nsw i32 %28, %29
store i32 %30, i32* %5
%31 = load i32, i32* %5
%32 = load i32, i32* %7
%33 = add nsw i32 %31, %32
store i32 %33, i32* %6
%34 = load float*, float** %2
%35 = load i32, i32* %3
%36 = sext i32 %35 to i64
%37 = getelementptr inbounds float, float* %34, i64 %36
%38 = load float, float* %37
%39 = load float*, float** %2
%40 = load i32, i32* %4
%41 = sext i32 %40 to i64
%42 = getelementptr inbounds float, float* %39, i64 %41
%43 = load float, float* %42
%44 = fadd float %38, %43
store float %44, float* %8
%45 = load float*, float** %2
%46 = load i32, i32* %3
%47 = add nsw i32 %46, 1
%48 = sext i32 %47 to i64
%49 = getelementptr inbounds float, float* %45, i64 %48
%50 = load float, float* %49
%51 = load float*, float** %2
%52 = load i32, i32* %4
%53 = add nsw i32 %52, 1
%54 = sext i32 %53 to i64
%55 = getelementptr inbounds float, float* %51, i64 %54
%56 = load float, float* %55
%57 = fadd float %50, %56
store float %57, float* %9
%58 = load float*, float** %2
%59 = load i32, i32* %3
%60 = sext i32 %59 to i64
%61 = getelementptr inbounds float, float* %58, i64 %60
%62 = load float, float* %61
%63 = load float*, float** %2
%64 = load i32, i32* %4
%65 = sext i32 %64 to i64
%66 = getelementptr inbounds float, float* %63, i64 %65
%67 = load float, float* %66
%68 = fsub float %62, %67
store float %68, float* %10
%69 = load float*, float** %2
%70 = load i32, i32* %3
%71 = add nsw i32 %70, 1
%72 = sext i32 %71 to i64
%73 = getelementptr inbounds float, float* %69, i64 %72
%74 = load float, float* %73
%75 = load float*, float** %2
%76 = load i32, i32* %4
%77 = add nsw i32 %76, 1
%78 = sext i32 %77 to i64
%79 = getelementptr inbounds float, float* %75, i64 %78
%80 = load float, float* %79
%81 = fsub float %74, %80
store float %81, float* %11
%82 = load float*, float** %2
%83 = load i32, i32* %5
%84 = sext i32 %83 to i64
%85 = getelementptr inbounds float, float* %82, i64 %84
%86 = load float, float* %85
%87 = load float*, float** %2
%88 = load i32, i32* %6
%89 = sext i32 %88 to i64
%90 = getelementptr inbounds float, float* %87, i64 %89
%91 = load float, float* %90
%92 = fadd float %86, %91
store float %92, float* %12
%93 = load float*, float** %2
%94 = load i32, i32* %5
%95 = add nsw i32 %94, 1
%96 = sext i32 %95 to i64
%97 = getelementptr inbounds float, float* %93, i64 %96
%98 = load float, float* %97
%99 = load float*, float** %2
%100 = load i32, i32* %6
%101 = add nsw i32 %100, 1
%102 = sext i32 %101 to i64
%103 = getelementptr inbounds float, float* %99, i64 %102
%104 = load float, float* %103
%105 = fadd float %98, %104
store float %105, float* %13
%106 = load float*, float** %2
%107 = load i32, i32* %5
%108 = sext i32 %107 to i64
%109 = getelementptr inbounds float, float* %106, i64 %108
%110 = load float, float* %109
%111 = load float*, float** %2
%112 = load i32, i32* %6
%113 = sext i32 %112 to i64
%114 = getelementptr inbounds float, float* %111, i64 %113
%115 = load float, float* %114
%116 = fsub float %110, %115
store float %116, float* %14
%117 = load float*, float** %2
%118 = load i32, i32* %5
%119 = add nsw i32 %118, 1
%120 = sext i32 %119 to i64
%121 = getelementptr inbounds float, float* %117, i64 %120
%122 = load float, float* %121
%123 = load float*, float** %2
%124 = load i32, i32* %6
%125 = add nsw i32 %124, 1
%126 = sext i32 %125 to i64
%127 = getelementptr inbounds float, float* %123, i64 %126
%128 = load float, float* %127
%129 = fsub float %122, %128
store float %129, float* %15
%130 = load float, float* %8
%131 = load float, float* %12
%132 = fadd float %130, %131
%133 = load float*, float** %2
%134 = load i32, i32* %3
%135 = sext i32 %134 to i64
%136 = getelementptr inbounds float, float* %133, i64 %135
store float %132, float* %136
%137 = load float, float* %9
%138 = load float, float* %13
%139 = fadd float %137, %138
%140 = load float*, float** %2
%141 = load i32, i32* %3
%142 = add nsw i32 %141, 1
%143 = sext i32 %142 to i64
%144 = getelementptr inbounds float, float* %140, i64 %143
store float %139, float* %144
%145 = load float, float* %8
%146 = load float, float* %12
%147 = fsub float %145, %146
%148 = load float*, float** %2
%149 = load i32, i32* %5
%150 = sext i32 %149 to i64
%151 = getelementptr inbounds float, float* %148, i64 %150
store float %147, float* %151
%152 = load float, float* %9
%153 = load float, float* %13
%154 = fsub float %152, %153
%155 = load float*, float** %2
%156 = load i32, i32* %5
%157 = add nsw i32 %156, 1
%158 = sext i32 %157 to i64
%159 = getelementptr inbounds float, float* %155, i64 %158
store float %154, float* %159
%160 = load float, float* %10
%161 = load float, float* %15
%162 = fsub float %160, %161
%163 = load float*, float** %2
%164 = load i32, i32* %4
%165 = sext i32 %164 to i64
%166 = getelementptr inbounds float, float* %163, i64 %165
store float %162, float* %166
%167 = load float, float* %11
%168 = load float, float* %14
%169 = fadd float %167, %168
%170 = load float*, float** %2
%171 = load i32, i32* %4
%172 = add nsw i32 %171, 1
%173 = sext i32 %172 to i64
%174 = getelementptr inbounds float, float* %170, i64 %173
store float %169, float* %174
%175 = load float, float* %10
%176 = load float, float* %15
%177 = fadd float %175, %176
%178 = load float*, float** %2
%179 = load i32, i32* %6
%180 = sext i32 %179 to i64
%181 = getelementptr inbounds float, float* %178, i64 %180
store float %177, float* %181
%182 = load float, float* %11
%183 = load float, float* %14
%184 = fsub float %182, %183
%185 = load float*, float** %2
%186 = load i32, i32* %6
%187 = add nsw i32 %186, 1
%188 = sext i32 %187 to i64
%189 = getelementptr inbounds float, float* %185, i64 %188
store float %184, float* %189
br label %190
190: ; preds = %24
%191 = load i32, i32* %3
%192 = add nsw i32 %191, 2
store i32 %192, i32* %3
br label %20
193: ; preds = %20
ret void
}

LLVM IR (-O2):
define void @cftfsub_128(float* %0) {
%2 = tail call i32 @cft1st_128(float* %0)
%3 = tail call i32 @cftmdl_128(float* %0)
%4 = bitcast float* %0 to <8 x float>*
%5 = load <8 x float>, <8 x float>* %4
%6 = shufflevector <8 x float> %5, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%7 = shufflevector <8 x float> %5, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%8 = getelementptr inbounds float, float* %0, i64 32
%9 = bitcast float* %8 to <8 x float>*
%10 = load <8 x float>, <8 x float>* %9
%11 = shufflevector <8 x float> %10, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%12 = shufflevector <8 x float> %10, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%13 = fadd <4 x float> %6, %11
%14 = fadd <4 x float> %7, %12
%15 = fsub <4 x float> %6, %11
%16 = fsub <4 x float> %7, %12
%17 = getelementptr inbounds float, float* %0, i64 64
%18 = bitcast float* %17 to <8 x float>*
%19 = load <8 x float>, <8 x float>* %18
%20 = shufflevector <8 x float> %19, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%21 = shufflevector <8 x float> %19, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%22 = getelementptr inbounds float, float* %0, i64 96
%23 = bitcast float* %22 to <8 x float>*
%24 = load <8 x float>, <8 x float>* %23
%25 = shufflevector <8 x float> %24, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%26 = shufflevector <8 x float> %24, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%27 = fadd <4 x float> %20, %25
%28 = fadd <4 x float> %21, %26
%29 = fsub <4 x float> %20, %25
%30 = fsub <4 x float> %21, %26
%31 = fadd <4 x float> %13, %27
%32 = fadd <4 x float> %14, %28
%33 = bitcast float* %0 to <8 x float>*
%34 = shufflevector <4 x float> %31, <4 x float> %32, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %34, <8 x float>* %33
%35 = fsub <4 x float> %13, %27
%36 = fsub <4 x float> %14, %28
%37 = getelementptr inbounds float, float* %0, i64 64
%38 = bitcast float* %37 to <8 x float>*
%39 = shufflevector <4 x float> %35, <4 x float> %36, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %39, <8 x float>* %38
%40 = fsub <4 x float> %15, %30
%41 = fadd <4 x float> %16, %29
%42 = getelementptr inbounds float, float* %0, i64 32
%43 = bitcast float* %42 to <8 x float>*
%44 = shufflevector <4 x float> %40, <4 x float> %41, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %44, <8 x float>* %43
%45 = fadd <4 x float> %15, %30
%46 = fsub <4 x float> %16, %29
%47 = getelementptr inbounds float, float* %0, i64 96
%48 = bitcast float* %47 to <8 x float>*
%49 = shufflevector <4 x float> %45, <4 x float> %46, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %49, <8 x float>* %48
%50 = getelementptr inbounds float, float* %0, i64 8
%51 = bitcast float* %50 to <8 x float>*
%52 = load <8 x float>, <8 x float>* %51
%53 = shufflevector <8 x float> %52, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%54 = shufflevector <8 x float> %52, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%55 = getelementptr inbounds float, float* %0, i64 40
%56 = bitcast float* %55 to <8 x float>*
%57 = load <8 x float>, <8 x float>* %56
%58 = shufflevector <8 x float> %57, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%59 = shufflevector <8 x float> %57, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%60 = fadd <4 x float> %53, %58
%61 = fadd <4 x float> %54, %59
%62 = fsub <4 x float> %53, %58
%63 = fsub <4 x float> %54, %59
%64 = getelementptr inbounds float, float* %0, i64 72
%65 = bitcast float* %64 to <8 x float>*
%66 = load <8 x float>, <8 x float>* %65
%67 = shufflevector <8 x float> %66, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%68 = shufflevector <8 x float> %66, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%69 = getelementptr inbounds float, float* %0, i64 104
%70 = bitcast float* %69 to <8 x float>*
%71 = load <8 x float>, <8 x float>* %70
%72 = shufflevector <8 x float> %71, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%73 = shufflevector <8 x float> %71, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%74 = fadd <4 x float> %67, %72
%75 = fadd <4 x float> %68, %73
%76 = fsub <4 x float> %67, %72
%77 = fsub <4 x float> %68, %73
%78 = fadd <4 x float> %60, %74
%79 = fadd <4 x float> %61, %75
%80 = getelementptr inbounds float, float* %0, i64 8
%81 = bitcast float* %80 to <8 x float>*
%82 = shufflevector <4 x float> %78, <4 x float> %79, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %82, <8 x float>* %81
%83 = fsub <4 x float> %60, %74
%84 = fsub <4 x float> %61, %75
%85 = getelementptr inbounds float, float* %0, i64 72
%86 = bitcast float* %85 to <8 x float>*
%87 = shufflevector <4 x float> %83, <4 x float> %84, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %87, <8 x float>* %86
%88 = fsub <4 x float> %62, %77
%89 = fadd <4 x float> %63, %76
%90 = getelementptr inbounds float, float* %0, i64 40
%91 = bitcast float* %90 to <8 x float>*
%92 = shufflevector <4 x float> %88, <4 x float> %89, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %92, <8 x float>* %91
%93 = fadd <4 x float> %62, %77
%94 = fsub <4 x float> %63, %76
%95 = getelementptr inbounds float, float* %0, i64 104
%96 = bitcast float* %95 to <8 x float>*
%97 = shufflevector <4 x float> %93, <4 x float> %94, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %97, <8 x float>* %96
%98 = getelementptr inbounds float, float* %0, i64 16
%99 = bitcast float* %98 to <8 x float>*
%100 = load <8 x float>, <8 x float>* %99
%101 = shufflevector <8 x float> %100, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%102 = shufflevector <8 x float> %100, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%103 = getelementptr inbounds float, float* %0, i64 48
%104 = bitcast float* %103 to <8 x float>*
%105 = load <8 x float>, <8 x float>* %104
%106 = shufflevector <8 x float> %105, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%107 = shufflevector <8 x float> %105, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%108 = fadd <4 x float> %101, %106
%109 = fadd <4 x float> %102, %107
%110 = fsub <4 x float> %101, %106
%111 = fsub <4 x float> %102, %107
%112 = getelementptr inbounds float, float* %0, i64 80
%113 = bitcast float* %112 to <8 x float>*
%114 = load <8 x float>, <8 x float>* %113
%115 = shufflevector <8 x float> %114, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%116 = shufflevector <8 x float> %114, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%117 = getelementptr inbounds float, float* %0, i64 112
%118 = bitcast float* %117 to <8 x float>*
%119 = load <8 x float>, <8 x float>* %118
%120 = shufflevector <8 x float> %119, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%121 = shufflevector <8 x float> %119, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%122 = fadd <4 x float> %115, %120
%123 = fadd <4 x float> %116, %121
%124 = fsub <4 x float> %115, %120
%125 = fsub <4 x float> %116, %121
%126 = fadd <4 x float> %108, %122
%127 = fadd <4 x float> %109, %123
%128 = getelementptr inbounds float, float* %0, i64 16
%129 = bitcast float* %128 to <8 x float>*
%130 = shufflevector <4 x float> %126, <4 x float> %127, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %130, <8 x float>* %129
%131 = fsub <4 x float> %108, %122
%132 = fsub <4 x float> %109, %123
%133 = getelementptr inbounds float, float* %0, i64 80
%134 = bitcast float* %133 to <8 x float>*
%135 = shufflevector <4 x float> %131, <4 x float> %132, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %135, <8 x float>* %134
%136 = fsub <4 x float> %110, %125
%137 = fadd <4 x float> %111, %124
%138 = getelementptr inbounds float, float* %0, i64 48
%139 = bitcast float* %138 to <8 x float>*
%140 = shufflevector <4 x float> %136, <4 x float> %137, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %140, <8 x float>* %139
%141 = fadd <4 x float> %110, %125
%142 = fsub <4 x float> %111, %124
%143 = getelementptr inbounds float, float* %0, i64 112
%144 = bitcast float* %143 to <8 x float>*
%145 = shufflevector <4 x float> %141, <4 x float> %142, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %145, <8 x float>* %144
%146 = getelementptr inbounds float, float* %0, i64 24
%147 = bitcast float* %146 to <8 x float>*
%148 = load <8 x float>, <8 x float>* %147
%149 = shufflevector <8 x float> %148, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%150 = shufflevector <8 x float> %148, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%151 = getelementptr inbounds float, float* %0, i64 56
%152 = bitcast float* %151 to <8 x float>*
%153 = load <8 x float>, <8 x float>* %152
%154 = shufflevector <8 x float> %153, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%155 = shufflevector <8 x float> %153, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%156 = fadd <4 x float> %149, %154
%157 = fadd <4 x float> %150, %155
%158 = fsub <4 x float> %149, %154
%159 = fsub <4 x float> %150, %155
%160 = getelementptr inbounds float, float* %0, i64 88
%161 = bitcast float* %160 to <8 x float>*
%162 = load <8 x float>, <8 x float>* %161
%163 = shufflevector <8 x float> %162, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%164 = shufflevector <8 x float> %162, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%165 = getelementptr inbounds float, float* %0, i64 120
%166 = bitcast float* %165 to <8 x float>*
%167 = load <8 x float>, <8 x float>* %166
%168 = shufflevector <8 x float> %167, <8 x float> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%169 = shufflevector <8 x float> %167, <8 x float> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
%170 = fadd <4 x float> %163, %168
%171 = fadd <4 x float> %164, %169
%172 = fsub <4 x float> %163, %168
%173 = fsub <4 x float> %164, %169
%174 = fadd <4 x float> %156, %170
%175 = fadd <4 x float> %157, %171
%176 = getelementptr inbounds float, float* %0, i64 24
%177 = bitcast float* %176 to <8 x float>*
%178 = shufflevector <4 x float> %174, <4 x float> %175, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %178, <8 x float>* %177
%179 = fsub <4 x float> %156, %170
%180 = fsub <4 x float> %157, %171
%181 = getelementptr inbounds float, float* %0, i64 88
%182 = bitcast float* %181 to <8 x float>*
%183 = shufflevector <4 x float> %179, <4 x float> %180, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %183, <8 x float>* %182
%184 = fsub <4 x float> %158, %173
%185 = fadd <4 x float> %159, %172
%186 = getelementptr inbounds float, float* %0, i64 56
%187 = bitcast float* %186 to <8 x float>*
%188 = shufflevector <4 x float> %184, <4 x float> %185, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %188, <8 x float>* %187
%189 = fadd <4 x float> %158, %173
%190 = fsub <4 x float> %159, %172
%191 = getelementptr inbounds float, float* %0, i64 120
%192 = bitcast float* %191 to <8 x float>*
%193 = shufflevector <4 x float> %189, <4 x float> %190, <8 x i32> <i32 0, i32 4, i32 1, i32 5, i32 2, i32 6, i32 3, i32 7>
store <8 x float> %193, <8 x float>* %192
ret void
}