void cftf082(double *a, double *w) {
  double wn4r, wk1r, wk1i, x0r, x0i, x1r, x1i, y0r, y0i, y1r, y1i, y2r, y2i,
      y3r, y3i, y4r, y4i, y5r, y5i, y6r, y6i, y7r, y7i;
  wn4r = w[1];
  wk1r = w[4];
  wk1i = w[5];
  y0r = a[0] - a[9];
  y0i = a[1] + a[8];
  y1r = a[0] + a[9];
  y1i = a[1] - a[8];
  x0r = a[4] - a[13];
  x0i = a[5] + a[12];
  y2r = wn4r * (x0r - x0i);
  y2i = wn4r * (x0i + x0r);
  x0r = a[4] + a[13];
  x0i = a[5] - a[12];
  y3r = wn4r * (x0r - x0i);
  y3i = wn4r * (x0i + x0r);
  x0r = a[2] - a[11];
  x0i = a[3] + a[10];
  y4r = wk1r * x0r - wk1i * x0i;
  y4i = wk1r * x0i + wk1i * x0r;
  x0r = a[2] + a[11];
  x0i = a[3] - a[10];
  y5r = wk1i * x0r - wk1r * x0i;
  y5i = wk1i * x0i + wk1r * x0r;
  x0r = a[6] - a[15];
  x0i = a[7] + a[14];
  y6r = wk1i * x0r - wk1r * x0i;
  y6i = wk1i * x0i + wk1r * x0r;
  x0r = a[6] + a[15];
  x0i = a[7] - a[14];
  y7r = wk1r * x0r - wk1i * x0i;
  y7i = wk1r * x0i + wk1i * x0r;
  x0r = y0r + y2r;
  x0i = y0i + y2i;
  x1r = y4r + y6r;
  x1i = y4i + y6i;
  a[0] = x0r + x1r;
  a[1] = x0i + x1i;
  a[2] = x0r - x1r;
  a[3] = x0i - x1i;
  x0r = y0r - y2r;
  x0i = y0i - y2i;
  x1r = y4r - y6r;
  x1i = y4i - y6i;
  a[4] = x0r - x1i;
  a[5] = x0i + x1r;
  a[6] = x0r + x1i;
  a[7] = x0i - x1r;
  x0r = y1r - y3i;
  x0i = y1i + y3r;
  x1r = y5r - y7r;
  x1i = y5i - y7i;
  a[8] = x0r + x1r;
  a[9] = x0i + x1i;
  a[10] = x0r - x1r;
  a[11] = x0i - x1i;
  x0r = y1r + y3i;
  x0i = y1i - y3r;
  x1r = y5r + y7r;
  x1i = y5i + y7i;
  a[12] = x0r - x1i;
  a[13] = x0i + x1r;
  a[14] = x0r + x1i;
  a[15] = x0i - x1r;
}


x86 assembly (clang, -O0):
<cftf082>:
push   %rbp
mov    %rsp,%rbp
sub    $0x48,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    -0x10(%rbp),%rax
movsd  0x8(%rax),%xmm0
movsd  %xmm0,-0x18(%rbp)
mov    -0x10(%rbp),%rax
movsd  0x20(%rax),%xmm0
movsd  %xmm0,-0x20(%rbp)
mov    -0x10(%rbp),%rax
movsd  0x28(%rax),%xmm0
movsd  %xmm0,-0x28(%rbp)
mov    -0x8(%rbp),%rax
movsd  (%rax),%xmm0
mov    -0x8(%rbp),%rax
subsd  0x48(%rax),%xmm0
movsd  %xmm0,-0x50(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x8(%rax),%xmm0
mov    -0x8(%rbp),%rax
addsd  0x40(%rax),%xmm0
movsd  %xmm0,-0x58(%rbp)
mov    -0x8(%rbp),%rax
movsd  (%rax),%xmm0
mov    -0x8(%rbp),%rax
addsd  0x48(%rax),%xmm0
movsd  %xmm0,-0x60(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x8(%rax),%xmm0
mov    -0x8(%rbp),%rax
subsd  0x40(%rax),%xmm0
movsd  %xmm0,-0x68(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x20(%rax),%xmm0
mov    -0x8(%rbp),%rax
subsd  0x68(%rax),%xmm0
movsd  %xmm0,-0x30(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x28(%rax),%xmm0
mov    -0x8(%rbp),%rax
addsd  0x60(%rax),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0x18(%rbp),%xmm0
movsd  -0x30(%rbp),%xmm1
subsd  -0x38(%rbp),%xmm1
mulsd  %xmm1,%xmm0
movsd  %xmm0,-0x70(%rbp)
movsd  -0x18(%rbp),%xmm0
movsd  -0x38(%rbp),%xmm1
addsd  -0x30(%rbp),%xmm1
mulsd  %xmm1,%xmm0
movsd  %xmm0,-0x78(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x20(%rax),%xmm0
mov    -0x8(%rbp),%rax
addsd  0x68(%rax),%xmm0
movsd  %xmm0,-0x30(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x28(%rax),%xmm0
mov    -0x8(%rbp),%rax
subsd  0x60(%rax),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0x18(%rbp),%xmm0
movsd  -0x30(%rbp),%xmm1
subsd  -0x38(%rbp),%xmm1
mulsd  %xmm1,%xmm0
movsd  %xmm0,-0x80(%rbp)
movsd  -0x18(%rbp),%xmm0
movsd  -0x38(%rbp),%xmm1
addsd  -0x30(%rbp),%xmm1
mulsd  %xmm1,%xmm0
movsd  %xmm0,-0x88(%rbp)
ff
mov    -0x8(%rbp),%rax
movsd  0x10(%rax),%xmm0
mov    -0x8(%rbp),%rax
subsd  0x58(%rax),%xmm0
movsd  %xmm0,-0x30(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x18(%rax),%xmm0
mov    -0x8(%rbp),%rax
addsd  0x50(%rax),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0x20(%rbp),%xmm0
movsd  -0x30(%rbp),%xmm2
movsd  -0x28(%rbp),%xmm1
mulsd  -0x38(%rbp),%xmm1
movq   %xmm1,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm1
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  %xmm0,-0x90(%rbp)
ff
movsd  -0x20(%rbp),%xmm0
movsd  -0x38(%rbp),%xmm2
movsd  -0x28(%rbp),%xmm1
mulsd  -0x30(%rbp),%xmm1
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  %xmm0,-0x98(%rbp)
ff
mov    -0x8(%rbp),%rax
movsd  0x10(%rax),%xmm0
mov    -0x8(%rbp),%rax
addsd  0x58(%rax),%xmm0
movsd  %xmm0,-0x30(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x18(%rax),%xmm0
mov    -0x8(%rbp),%rax
subsd  0x50(%rax),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0x28(%rbp),%xmm0
movsd  -0x30(%rbp),%xmm2
movsd  -0x20(%rbp),%xmm1
mulsd  -0x38(%rbp),%xmm1
movq   %xmm1,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm1
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  %xmm0,-0xa0(%rbp)
ff
movsd  -0x28(%rbp),%xmm0
movsd  -0x38(%rbp),%xmm2
movsd  -0x20(%rbp),%xmm1
mulsd  -0x30(%rbp),%xmm1
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  %xmm0,-0xa8(%rbp)
ff
mov    -0x8(%rbp),%rax
movsd  0x30(%rax),%xmm0
mov    -0x8(%rbp),%rax
subsd  0x78(%rax),%xmm0
movsd  %xmm0,-0x30(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x38(%rax),%xmm0
mov    -0x8(%rbp),%rax
addsd  0x70(%rax),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0x28(%rbp),%xmm0
movsd  -0x30(%rbp),%xmm2
movsd  -0x20(%rbp),%xmm1
mulsd  -0x38(%rbp),%xmm1
movq   %xmm1,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm1
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  %xmm0,-0xb0(%rbp)
ff
movsd  -0x28(%rbp),%xmm0
movsd  -0x38(%rbp),%xmm2
movsd  -0x20(%rbp),%xmm1
mulsd  -0x30(%rbp),%xmm1
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  %xmm0,-0xb8(%rbp)
ff
mov    -0x8(%rbp),%rax
movsd  0x30(%rax),%xmm0
mov    -0x8(%rbp),%rax
addsd  0x78(%rax),%xmm0
movsd  %xmm0,-0x30(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x38(%rax),%xmm0
mov    -0x8(%rbp),%rax
subsd  0x70(%rax),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0x20(%rbp),%xmm0
movsd  -0x30(%rbp),%xmm2
movsd  -0x28(%rbp),%xmm1
mulsd  -0x38(%rbp),%xmm1
movq   %xmm1,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm1
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  %xmm0,-0xc0(%rbp)
ff
movsd  -0x20(%rbp),%xmm0
movsd  -0x38(%rbp),%xmm2
movsd  -0x28(%rbp),%xmm1
mulsd  -0x30(%rbp),%xmm1
mulsd  %xmm2,%xmm0
addsd  %xmm1,%xmm0
movsd  %xmm0,-0xc8(%rbp)
ff
movsd  -0x50(%rbp),%xmm0
addsd  -0x70(%rbp),%xmm0
movsd  %xmm0,-0x30(%rbp)
movsd  -0x58(%rbp),%xmm0
addsd  -0x78(%rbp),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0x90(%rbp),%xmm0
ff
addsd  -0xb0(%rbp),%xmm0
ff
movsd  %xmm0,-0x40(%rbp)
movsd  -0x98(%rbp),%xmm0
ff
addsd  -0xb8(%rbp),%xmm0
ff
movsd  %xmm0,-0x48(%rbp)
movsd  -0x30(%rbp),%xmm0
addsd  -0x40(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,(%rax)
movsd  -0x38(%rbp),%xmm0
addsd  -0x48(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x8(%rax)
movsd  -0x30(%rbp),%xmm0
subsd  -0x40(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x10(%rax)
movsd  -0x38(%rbp),%xmm0
subsd  -0x48(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x18(%rax)
movsd  -0x50(%rbp),%xmm0
subsd  -0x70(%rbp),%xmm0
movsd  %xmm0,-0x30(%rbp)
movsd  -0x58(%rbp),%xmm0
subsd  -0x78(%rbp),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0x90(%rbp),%xmm0
ff
subsd  -0xb0(%rbp),%xmm0
ff
movsd  %xmm0,-0x40(%rbp)
movsd  -0x98(%rbp),%xmm0
ff
subsd  -0xb8(%rbp),%xmm0
ff
movsd  %xmm0,-0x48(%rbp)
movsd  -0x30(%rbp),%xmm0
subsd  -0x48(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x20(%rax)
movsd  -0x38(%rbp),%xmm0
addsd  -0x40(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x28(%rax)
movsd  -0x30(%rbp),%xmm0
addsd  -0x48(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x30(%rax)
movsd  -0x38(%rbp),%xmm0
subsd  -0x40(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x38(%rax)
movsd  -0x60(%rbp),%xmm0
subsd  -0x88(%rbp),%xmm0
ff
movsd  %xmm0,-0x30(%rbp)
movsd  -0x68(%rbp),%xmm0
addsd  -0x80(%rbp),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0xa0(%rbp),%xmm0
ff
subsd  -0xc0(%rbp),%xmm0
ff
movsd  %xmm0,-0x40(%rbp)
movsd  -0xa8(%rbp),%xmm0
ff
subsd  -0xc8(%rbp),%xmm0
ff
movsd  %xmm0,-0x48(%rbp)
movsd  -0x30(%rbp),%xmm0
addsd  -0x40(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x40(%rax)
movsd  -0x38(%rbp),%xmm0
addsd  -0x48(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x48(%rax)
movsd  -0x30(%rbp),%xmm0
subsd  -0x40(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x50(%rax)
movsd  -0x38(%rbp),%xmm0
subsd  -0x48(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x58(%rax)
movsd  -0x60(%rbp),%xmm0
addsd  -0x88(%rbp),%xmm0
ff
movsd  %xmm0,-0x30(%rbp)
movsd  -0x68(%rbp),%xmm0
subsd  -0x80(%rbp),%xmm0
movsd  %xmm0,-0x38(%rbp)
movsd  -0xa0(%rbp),%xmm0
ff
addsd  -0xc0(%rbp),%xmm0
ff
movsd  %xmm0,-0x40(%rbp)
movsd  -0xa8(%rbp),%xmm0
ff
addsd  -0xc8(%rbp),%xmm0
ff
movsd  %xmm0,-0x48(%rbp)
movsd  -0x30(%rbp),%xmm0
subsd  -0x48(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x60(%rax)
movsd  -0x38(%rbp),%xmm0
addsd  -0x40(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x68(%rax)
movsd  -0x30(%rbp),%xmm0
addsd  -0x48(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x70(%rax)
movsd  -0x38(%rbp),%xmm0
subsd  -0x40(%rbp),%xmm0
mov    -0x8(%rbp),%rax
movsd  %xmm0,0x78(%rax)
add    $0x48,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<cftf082>:
movsd  0x8(%rsi),%xmm0
movsd  0x20(%rsi),%xmm12
movsd  0x48(%rdi),%xmm1
movsd  (%rdi),%xmm4
movsd  0x8(%rdi),%xmm3
movapd %xmm4,%xmm2
subsd  %xmm1,%xmm2
movsd  %xmm2,-0x20(%rsp)
movsd  0x40(%rdi),%xmm2
movapd %xmm3,%xmm7
addsd  %xmm2,%xmm7
addsd  %xmm1,%xmm4
movsd  %xmm4,-0x8(%rsp)
subsd  %xmm2,%xmm3
movsd  %xmm3,-0x10(%rsp)
movsd  0x20(%rdi),%xmm1
movsd  0x68(%rdi),%xmm2
movapd %xmm1,%xmm3
subsd  %xmm2,%xmm3
movsd  0x28(%rdi),%xmm8
movsd  0x60(%rdi),%xmm5
movapd %xmm8,%xmm14
addsd  %xmm5,%xmm14
movapd %xmm3,%xmm4
subsd  %xmm14,%xmm4
mulsd  %xmm0,%xmm4
movsd  %xmm4,-0x30(%rsp)
addsd  %xmm3,%xmm14
mulsd  %xmm0,%xmm14
addsd  %xmm2,%xmm1
subsd  %xmm5,%xmm8
movapd %xmm1,%xmm2
subsd  %xmm8,%xmm2
mulsd  %xmm0,%xmm2
movsd  %xmm2,-0x18(%rsp)
addsd  %xmm1,%xmm8
mulsd  %xmm0,%xmm8
movsd  0x10(%rdi),%xmm15
movsd  0x58(%rdi),%xmm3
movapd %xmm15,%xmm6
subsd  %xmm3,%xmm6
movsd  0x18(%rdi),%xmm1
movsd  0x50(%rdi),%xmm2
movapd %xmm1,%xmm0
addsd  %xmm2,%xmm0
movapd %xmm12,%xmm4
mulsd  %xmm0,%xmm4
movsd  0x28(%rsi),%xmm11
mulsd  %xmm11,%xmm0
movapd %xmm12,%xmm10
mulsd  %xmm6,%xmm10
subsd  %xmm0,%xmm10
mulsd  %xmm11,%xmm6
addsd  %xmm4,%xmm6
subsd  %xmm2,%xmm1
movapd %xmm11,%xmm0
mulsd  %xmm1,%xmm0
mulsd  %xmm12,%xmm1
addsd  %xmm3,%xmm15
movapd %xmm11,%xmm2
mulsd  %xmm15,%xmm2
mulsd  %xmm12,%xmm15
subsd  %xmm1,%xmm2
movsd  %xmm2,-0x28(%rsp)
addsd  %xmm0,%xmm15
movsd  0x38(%rdi),%xmm3
movsd  0x70(%rdi),%xmm9
movapd %xmm3,%xmm1
addsd  %xmm9,%xmm1
movapd %xmm11,%xmm13
mulsd  %xmm1,%xmm13
mulsd  %xmm12,%xmm1
movsd  0x30(%rdi),%xmm0
movsd  0x78(%rdi),%xmm5
movapd %xmm0,%xmm2
subsd  %xmm5,%xmm2
movapd %xmm11,%xmm4
mulsd  %xmm2,%xmm4
subsd  %xmm1,%xmm4
mulsd  %xmm12,%xmm2
addsd  %xmm13,%xmm2
addsd  %xmm5,%xmm0
subsd  %xmm9,%xmm3
movapd %xmm3,%xmm1
mulsd  %xmm12,%xmm3
movapd %xmm12,%xmm9
mulsd  %xmm11,%xmm1
mulsd  %xmm0,%xmm9
subsd  %xmm1,%xmm9
mulsd  %xmm11,%xmm0
addsd  %xmm0,%xmm3
movsd  -0x20(%rsp),%xmm13
movapd %xmm13,%xmm0
addsd  -0x30(%rsp),%xmm0
movapd %xmm10,%xmm11
addsd  %xmm4,%xmm11
movapd %xmm0,%xmm5
addsd  %xmm11,%xmm5
movsd  %xmm5,(%rdi)
movapd %xmm7,%xmm1
addsd  %xmm14,%xmm1
movapd %xmm6,%xmm12
addsd  %xmm2,%xmm12
movapd %xmm1,%xmm5
addsd  %xmm12,%xmm5
movsd  %xmm5,0x8(%rdi)
subsd  %xmm11,%xmm0
movsd  %xmm0,0x10(%rdi)
subsd  %xmm12,%xmm1
movsd  %xmm1,0x18(%rdi)
movapd %xmm13,%xmm1
subsd  -0x30(%rsp),%xmm1
subsd  %xmm14,%xmm7
subsd  %xmm4,%xmm10
subsd  %xmm2,%xmm6
movapd %xmm1,%xmm0
subsd  %xmm6,%xmm0
movsd  %xmm0,0x20(%rdi)
movapd %xmm7,%xmm0
addsd  %xmm10,%xmm0
movsd  %xmm0,0x28(%rdi)
addsd  %xmm1,%xmm6
movsd  %xmm6,0x30(%rdi)
subsd  %xmm10,%xmm7
movsd  %xmm7,0x38(%rdi)
movsd  -0x8(%rsp),%xmm7
movapd %xmm7,%xmm0
subsd  %xmm8,%xmm0
movsd  -0x10(%rsp),%xmm10
movapd %xmm10,%xmm1
movsd  -0x18(%rsp),%xmm6
addsd  %xmm6,%xmm1
movsd  -0x28(%rsp),%xmm11
movapd %xmm11,%xmm2
subsd  %xmm9,%xmm2
movapd %xmm15,%xmm4
subsd  %xmm3,%xmm4
movapd %xmm0,%xmm5
addsd  %xmm2,%xmm5
movsd  %xmm5,0x40(%rdi)
movapd %xmm1,%xmm5
addsd  %xmm4,%xmm5
movsd  %xmm5,0x48(%rdi)
subsd  %xmm2,%xmm0
movsd  %xmm0,0x50(%rdi)
subsd  %xmm4,%xmm1
movsd  %xmm1,0x58(%rdi)
addsd  %xmm7,%xmm8
movapd %xmm10,%xmm1
subsd  %xmm6,%xmm1
addsd  %xmm11,%xmm9
addsd  %xmm15,%xmm3
movapd %xmm8,%xmm0
subsd  %xmm3,%xmm0
movsd  %xmm0,0x60(%rdi)
movapd %xmm1,%xmm0
addsd  %xmm9,%xmm0
movsd  %xmm0,0x68(%rdi)
addsd  %xmm8,%xmm3
movsd  %xmm3,0x70(%rdi)
subsd  %xmm9,%xmm1
movsd  %xmm1,0x78(%rdi)
ret

LLVM IR (-O0):
define void @cftf082(double* %0, double* %1) {
%3 = alloca double*
%4 = alloca double*
%5 = alloca double
%6 = alloca double
%7 = alloca double
%8 = alloca double
%9 = alloca double
%10 = alloca double
%11 = alloca double
%12 = alloca double
%13 = alloca double
%14 = alloca double
%15 = alloca double
%16 = alloca double
%17 = alloca double
%18 = alloca double
%19 = alloca double
%20 = alloca double
%21 = alloca double
%22 = alloca double
%23 = alloca double
%24 = alloca double
%25 = alloca double
%26 = alloca double
%27 = alloca double
store double* %0, double** %3
store double* %1, double** %4
%28 = load double*, double** %4
%29 = getelementptr inbounds double, double* %28, i64 1
%30 = load double, double* %29
store double %30, double* %5
%31 = load double*, double** %4
%32 = getelementptr inbounds double, double* %31, i64 4
%33 = load double, double* %32
store double %33, double* %6
%34 = load double*, double** %4
%35 = getelementptr inbounds double, double* %34, i64 5
%36 = load double, double* %35
store double %36, double* %7
%37 = load double*, double** %3
%38 = getelementptr inbounds double, double* %37, i64 0
%39 = load double, double* %38
%40 = load double*, double** %3
%41 = getelementptr inbounds double, double* %40, i64 9
%42 = load double, double* %41
%43 = fsub double %39, %42
store double %43, double* %12
%44 = load double*, double** %3
%45 = getelementptr inbounds double, double* %44, i64 1
%46 = load double, double* %45
%47 = load double*, double** %3
%48 = getelementptr inbounds double, double* %47, i64 8
%49 = load double, double* %48
%50 = fadd double %46, %49
store double %50, double* %13
%51 = load double*, double** %3
%52 = getelementptr inbounds double, double* %51, i64 0
%53 = load double, double* %52
%54 = load double*, double** %3
%55 = getelementptr inbounds double, double* %54, i64 9
%56 = load double, double* %55
%57 = fadd double %53, %56
store double %57, double* %14
%58 = load double*, double** %3
%59 = getelementptr inbounds double, double* %58, i64 1
%60 = load double, double* %59
%61 = load double*, double** %3
%62 = getelementptr inbounds double, double* %61, i64 8
%63 = load double, double* %62
%64 = fsub double %60, %63
store double %64, double* %15
%65 = load double*, double** %3
%66 = getelementptr inbounds double, double* %65, i64 4
%67 = load double, double* %66
%68 = load double*, double** %3
%69 = getelementptr inbounds double, double* %68, i64 13
%70 = load double, double* %69
%71 = fsub double %67, %70
store double %71, double* %8
%72 = load double*, double** %3
%73 = getelementptr inbounds double, double* %72, i64 5
%74 = load double, double* %73
%75 = load double*, double** %3
%76 = getelementptr inbounds double, double* %75, i64 12
%77 = load double, double* %76
%78 = fadd double %74, %77
store double %78, double* %9
%79 = load double, double* %5
%80 = load double, double* %8
%81 = load double, double* %9
%82 = fsub double %80, %81
%83 = fmul double %79, %82
store double %83, double* %16
%84 = load double, double* %5
%85 = load double, double* %9
%86 = load double, double* %8
%87 = fadd double %85, %86
%88 = fmul double %84, %87
store double %88, double* %17
%89 = load double*, double** %3
%90 = getelementptr inbounds double, double* %89, i64 4
%91 = load double, double* %90
%92 = load double*, double** %3
%93 = getelementptr inbounds double, double* %92, i64 13
%94 = load double, double* %93
%95 = fadd double %91, %94
store double %95, double* %8
%96 = load double*, double** %3
%97 = getelementptr inbounds double, double* %96, i64 5
%98 = load double, double* %97
%99 = load double*, double** %3
%100 = getelementptr inbounds double, double* %99, i64 12
%101 = load double, double* %100
%102 = fsub double %98, %101
store double %102, double* %9
%103 = load double, double* %5
%104 = load double, double* %8
%105 = load double, double* %9
%106 = fsub double %104, %105
%107 = fmul double %103, %106
store double %107, double* %18
%108 = load double, double* %5
%109 = load double, double* %9
%110 = load double, double* %8
%111 = fadd double %109, %110
%112 = fmul double %108, %111
store double %112, double* %19
%113 = load double*, double** %3
%114 = getelementptr inbounds double, double* %113, i64 2
%115 = load double, double* %114
%116 = load double*, double** %3
%117 = getelementptr inbounds double, double* %116, i64 11
%118 = load double, double* %117
%119 = fsub double %115, %118
store double %119, double* %8
%120 = load double*, double** %3
%121 = getelementptr inbounds double, double* %120, i64 3
%122 = load double, double* %121
%123 = load double*, double** %3
%124 = getelementptr inbounds double, double* %123, i64 10
%125 = load double, double* %124
%126 = fadd double %122, %125
store double %126, double* %9
%127 = load double, double* %6
%128 = load double, double* %8
%129 = load double, double* %7
%130 = load double, double* %9
%131 = fmul double %129, %130
%132 = fneg double %131
%133 = call double @llvm.fmuladd.f64(double %127, double %128, double %132)
store double %133, double* %20
%134 = load double, double* %6
%135 = load double, double* %9
%136 = load double, double* %7
%137 = load double, double* %8
%138 = fmul double %136, %137
%139 = call double @llvm.fmuladd.f64(double %134, double %135, double %138)
store double %139, double* %21
%140 = load double*, double** %3
%141 = getelementptr inbounds double, double* %140, i64 2
%142 = load double, double* %141
%143 = load double*, double** %3
%144 = getelementptr inbounds double, double* %143, i64 11
%145 = load double, double* %144
%146 = fadd double %142, %145
store double %146, double* %8
%147 = load double*, double** %3
%148 = getelementptr inbounds double, double* %147, i64 3
%149 = load double, double* %148
%150 = load double*, double** %3
%151 = getelementptr inbounds double, double* %150, i64 10
%152 = load double, double* %151
%153 = fsub double %149, %152
store double %153, double* %9
%154 = load double, double* %7
%155 = load double, double* %8
%156 = load double, double* %6
%157 = load double, double* %9
%158 = fmul double %156, %157
%159 = fneg double %158
%160 = call double @llvm.fmuladd.f64(double %154, double %155, double %159)
store double %160, double* %22
%161 = load double, double* %7
%162 = load double, double* %9
%163 = load double, double* %6
%164 = load double, double* %8
%165 = fmul double %163, %164
%166 = call double @llvm.fmuladd.f64(double %161, double %162, double %165)
store double %166, double* %23
%167 = load double*, double** %3
%168 = getelementptr inbounds double, double* %167, i64 6
%169 = load double, double* %168
%170 = load double*, double** %3
%171 = getelementptr inbounds double, double* %170, i64 15
%172 = load double, double* %171
%173 = fsub double %169, %172
store double %173, double* %8
%174 = load double*, double** %3
%175 = getelementptr inbounds double, double* %174, i64 7
%176 = load double, double* %175
%177 = load double*, double** %3
%178 = getelementptr inbounds double, double* %177, i64 14
%179 = load double, double* %178
%180 = fadd double %176, %179
store double %180, double* %9
%181 = load double, double* %7
%182 = load double, double* %8
%183 = load double, double* %6
%184 = load double, double* %9
%185 = fmul double %183, %184
%186 = fneg double %185
%187 = call double @llvm.fmuladd.f64(double %181, double %182, double %186)
store double %187, double* %24
%188 = load double, double* %7
%189 = load double, double* %9
%190 = load double, double* %6
%191 = load double, double* %8
%192 = fmul double %190, %191
%193 = call double @llvm.fmuladd.f64(double %188, double %189, double %192)
store double %193, double* %25
%194 = load double*, double** %3
%195 = getelementptr inbounds double, double* %194, i64 6
%196 = load double, double* %195
%197 = load double*, double** %3
%198 = getelementptr inbounds double, double* %197, i64 15
%199 = load double, double* %198
%200 = fadd double %196, %199
store double %200, double* %8
%201 = load double*, double** %3
%202 = getelementptr inbounds double, double* %201, i64 7
%203 = load double, double* %202
%204 = load double*, double** %3
%205 = getelementptr inbounds double, double* %204, i64 14
%206 = load double, double* %205
%207 = fsub double %203, %206
store double %207, double* %9
%208 = load double, double* %6
%209 = load double, double* %8
%210 = load double, double* %7
%211 = load double, double* %9
%212 = fmul double %210, %211
%213 = fneg double %212
%214 = call double @llvm.fmuladd.f64(double %208, double %209, double %213)
store double %214, double* %26
%215 = load double, double* %6
%216 = load double, double* %9
%217 = load double, double* %7
%218 = load double, double* %8
%219 = fmul double %217, %218
%220 = call double @llvm.fmuladd.f64(double %215, double %216, double %219)
store double %220, double* %27
%221 = load double, double* %12
%222 = load double, double* %16
%223 = fadd double %221, %222
store double %223, double* %8
%224 = load double, double* %13
%225 = load double, double* %17
%226 = fadd double %224, %225
store double %226, double* %9
%227 = load double, double* %20
%228 = load double, double* %24
%229 = fadd double %227, %228
store double %229, double* %10
%230 = load double, double* %21
%231 = load double, double* %25
%232 = fadd double %230, %231
store double %232, double* %11
%233 = load double, double* %8
%234 = load double, double* %10
%235 = fadd double %233, %234
%236 = load double*, double** %3
%237 = getelementptr inbounds double, double* %236, i64 0
store double %235, double* %237
%238 = load double, double* %9
%239 = load double, double* %11
%240 = fadd double %238, %239
%241 = load double*, double** %3
%242 = getelementptr inbounds double, double* %241, i64 1
store double %240, double* %242
%243 = load double, double* %8
%244 = load double, double* %10
%245 = fsub double %243, %244
%246 = load double*, double** %3
%247 = getelementptr inbounds double, double* %246, i64 2
store double %245, double* %247
%248 = load double, double* %9
%249 = load double, double* %11
%250 = fsub double %248, %249
%251 = load double*, double** %3
%252 = getelementptr inbounds double, double* %251, i64 3
store double %250, double* %252
%253 = load double, double* %12
%254 = load double, double* %16
%255 = fsub double %253, %254
store double %255, double* %8
%256 = load double, double* %13
%257 = load double, double* %17
%258 = fsub double %256, %257
store double %258, double* %9
%259 = load double, double* %20
%260 = load double, double* %24
%261 = fsub double %259, %260
store double %261, double* %10
%262 = load double, double* %21
%263 = load double, double* %25
%264 = fsub double %262, %263
store double %264, double* %11
%265 = load double, double* %8
%266 = load double, double* %11
%267 = fsub double %265, %266
%268 = load double*, double** %3
%269 = getelementptr inbounds double, double* %268, i64 4
store double %267, double* %269
%270 = load double, double* %9
%271 = load double, double* %10
%272 = fadd double %270, %271
%273 = load double*, double** %3
%274 = getelementptr inbounds double, double* %273, i64 5
store double %272, double* %274
%275 = load double, double* %8
%276 = load double, double* %11
%277 = fadd double %275, %276
%278 = load double*, double** %3
%279 = getelementptr inbounds double, double* %278, i64 6
store double %277, double* %279
%280 = load double, double* %9
%281 = load double, double* %10
%282 = fsub double %280, %281
%283 = load double*, double** %3
%284 = getelementptr inbounds double, double* %283, i64 7
store double %282, double* %284
%285 = load double, double* %14
%286 = load double, double* %19
%287 = fsub double %285, %286
store double %287, double* %8
%288 = load double, double* %15
%289 = load double, double* %18
%290 = fadd double %288, %289
store double %290, double* %9
%291 = load double, double* %22
%292 = load double, double* %26
%293 = fsub double %291, %292
store double %293, double* %10
%294 = load double, double* %23
%295 = load double, double* %27
%296 = fsub double %294, %295
store double %296, double* %11
%297 = load double, double* %8
%298 = load double, double* %10
%299 = fadd double %297, %298
%300 = load double*, double** %3
%301 = getelementptr inbounds double, double* %300, i64 8
store double %299, double* %301
%302 = load double, double* %9
%303 = load double, double* %11
%304 = fadd double %302, %303
%305 = load double*, double** %3
%306 = getelementptr inbounds double, double* %305, i64 9
store double %304, double* %306
%307 = load double, double* %8
%308 = load double, double* %10
%309 = fsub double %307, %308
%310 = load double*, double** %3
%311 = getelementptr inbounds double, double* %310, i64 10
store double %309, double* %311
%312 = load double, double* %9
%313 = load double, double* %11
%314 = fsub double %312, %313
%315 = load double*, double** %3
%316 = getelementptr inbounds double, double* %315, i64 11
store double %314, double* %316
%317 = load double, double* %14
%318 = load double, double* %19
%319 = fadd double %317, %318
store double %319, double* %8
%320 = load double, double* %15
%321 = load double, double* %18
%322 = fsub double %320, %321
store double %322, double* %9
%323 = load double, double* %22
%324 = load double, double* %26
%325 = fadd double %323, %324
store double %325, double* %10
%326 = load double, double* %23
%327 = load double, double* %27
%328 = fadd double %326, %327
store double %328, double* %11
%329 = load double, double* %8
%330 = load double, double* %11
%331 = fsub double %329, %330
%332 = load double*, double** %3
%333 = getelementptr inbounds double, double* %332, i64 12
store double %331, double* %333
%334 = load double, double* %9
%335 = load double, double* %10
%336 = fadd double %334, %335
%337 = load double*, double** %3
%338 = getelementptr inbounds double, double* %337, i64 13
store double %336, double* %338
%339 = load double, double* %8
%340 = load double, double* %11
%341 = fadd double %339, %340
%342 = load double*, double** %3
%343 = getelementptr inbounds double, double* %342, i64 14
store double %341, double* %343
%344 = load double, double* %9
%345 = load double, double* %10
%346 = fsub double %344, %345
%347 = load double*, double** %3
%348 = getelementptr inbounds double, double* %347, i64 15
store double %346, double* %348
ret void
}

LLVM IR (-O2):
define void @cftf082(double* nocapture %0, double* nocapture %1) {
%3 = getelementptr inbounds double, double* %1, i64 1
%4 = load double, double* %3
%5 = getelementptr inbounds double, double* %1, i64 4
%6 = load double, double* %5
%7 = getelementptr inbounds double, double* %1, i64 5
%8 = load double, double* %7
%9 = load double, double* %0
%10 = getelementptr inbounds double, double* %0, i64 9
%11 = load double, double* %10
%12 = fsub double %9, %11
%13 = getelementptr inbounds double, double* %0, i64 1
%14 = load double, double* %13
%15 = getelementptr inbounds double, double* %0, i64 8
%16 = load double, double* %15
%17 = fadd double %14, %16
%18 = fadd double %9, %11
%19 = fsub double %14, %16
%20 = getelementptr inbounds double, double* %0, i64 4
%21 = load double, double* %20
%22 = getelementptr inbounds double, double* %0, i64 13
%23 = load double, double* %22
%24 = fsub double %21, %23
%25 = getelementptr inbounds double, double* %0, i64 5
%26 = load double, double* %25
%27 = getelementptr inbounds double, double* %0, i64 12
%28 = load double, double* %27
%29 = fadd double %26, %28
%30 = fsub double %24, %29
%31 = fmul double %4, %30
%32 = fadd double %24, %29
%33 = fmul double %4, %32
%34 = fadd double %21, %23
%35 = fsub double %26, %28
%36 = fsub double %34, %35
%37 = fmul double %4, %36
%38 = fadd double %34, %35
%39 = fmul double %4, %38
%40 = getelementptr inbounds double, double* %0, i64 2
%41 = load double, double* %40
%42 = getelementptr inbounds double, double* %0, i64 11
%43 = load double, double* %42
%44 = fsub double %41, %43
%45 = getelementptr inbounds double, double* %0, i64 3
%46 = load double, double* %45
%47 = getelementptr inbounds double, double* %0, i64 10
%48 = load double, double* %47
%49 = fadd double %46, %48
%50 = fneg double %8
%51 = fmul double %49, %50
%52 = tail call double @llvm.fmuladd.f64(double %6, double %44, double %51)
%53 = fmul double %8, %44
%54 = tail call double @llvm.fmuladd.f64(double %6, double %49, double %53)
%55 = fadd double %41, %43
%56 = fsub double %46, %48
%57 = fneg double %6
%58 = fmul double %56, %57
%59 = tail call double @llvm.fmuladd.f64(double %8, double %55, double %58)
%60 = fmul double %6, %55
%61 = tail call double @llvm.fmuladd.f64(double %8, double %56, double %60)
%62 = getelementptr inbounds double, double* %0, i64 6
%63 = load double, double* %62
%64 = getelementptr inbounds double, double* %0, i64 15
%65 = load double, double* %64
%66 = fsub double %63, %65
%67 = getelementptr inbounds double, double* %0, i64 7
%68 = load double, double* %67
%69 = getelementptr inbounds double, double* %0, i64 14
%70 = load double, double* %69
%71 = fadd double %68, %70
%72 = fmul double %71, %57
%73 = tail call double @llvm.fmuladd.f64(double %8, double %66, double %72)
%74 = fmul double %6, %66
%75 = tail call double @llvm.fmuladd.f64(double %8, double %71, double %74)
%76 = fadd double %63, %65
%77 = fsub double %68, %70
%78 = fmul double %77, %50
%79 = tail call double @llvm.fmuladd.f64(double %6, double %76, double %78)
%80 = fmul double %8, %76
%81 = tail call double @llvm.fmuladd.f64(double %6, double %77, double %80)
%82 = fadd double %12, %31
%83 = fadd double %17, %33
%84 = fadd double %52, %73
%85 = fadd double %54, %75
%86 = fadd double %82, %84
store double %86, double* %0
%87 = fadd double %83, %85
store double %87, double* %13
%88 = fsub double %82, %84
store double %88, double* %40
%89 = fsub double %83, %85
store double %89, double* %45
%90 = fsub double %12, %31
%91 = fsub double %17, %33
%92 = fsub double %52, %73
%93 = fsub double %54, %75
%94 = fsub double %90, %93
store double %94, double* %20
%95 = fadd double %91, %92
store double %95, double* %25
%96 = fadd double %90, %93
store double %96, double* %62
%97 = fsub double %91, %92
store double %97, double* %67
%98 = fsub double %18, %39
%99 = fadd double %19, %37
%100 = fsub double %59, %79
%101 = fsub double %61, %81
%102 = fadd double %98, %100
store double %102, double* %15
%103 = fadd double %99, %101
store double %103, double* %10
%104 = fsub double %98, %100
store double %104, double* %47
%105 = fsub double %99, %101
store double %105, double* %42
%106 = fadd double %18, %39
%107 = fsub double %19, %37
%108 = fadd double %59, %79
%109 = fadd double %61, %81
%110 = fsub double %106, %109
store double %110, double* %27
%111 = fadd double %107, %108
store double %111, double* %22
%112 = fadd double %106, %109
store double %112, double* %69
%113 = fsub double %107, %108
store double %113, double* %64
ret void
}