#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 */
float fdegcos(float);
float fdegsin(float);
void getRotZ(float a, float m[16]) {
  float sina = fdegsin(a);
  float cosa = fdegcos(a);
  m[0] = cosa;
  m[4] = -sina;
  m[8] = 0.0f;
  m[12] = 0.0f;
  m[1] = sina;
  m[5] = cosa;
  m[9] = 0.0f;
  m[13] = 0.0f;
  m[2] = 0.0f;
  m[6] = 0.0f;
  m[10] = 1.0f;
  m[14] = 0.0f;
  m[3] = 0.0f;
  m[7] = 0.0f;
  m[11] = 0.0f;
  m[15] = 1.0f;
}


x86 assembly (clang, -O0):
<getRotZ>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movss  %xmm0,-0x4(%rbp)
mov    %rdi,-0x10(%rbp)
movss  -0x4(%rbp),%xmm0
call   1040 <fdegsin@plt>
movss  %xmm0,-0x14(%rbp)
movss  -0x4(%rbp),%xmm0
call   1030 <fdegcos@plt>
movss  %xmm0,-0x18(%rbp)
movss  -0x18(%rbp),%xmm0
mov    -0x10(%rbp),%rax
movss  %xmm0,(%rax)
movss  -0x14(%rbp),%xmm0
movd   %xmm0,%eax
xor    $0x80000000,%eax
movd   %eax,%xmm0
mov    -0x10(%rbp),%rax
movss  %xmm0,0x10(%rax)
mov    -0x10(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x20(%rax)
mov    -0x10(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x30(%rax)
movss  -0x14(%rbp),%xmm0
mov    -0x10(%rbp),%rax
movss  %xmm0,0x4(%rax)
movss  -0x18(%rbp),%xmm0
mov    -0x10(%rbp),%rax
movss  %xmm0,0x14(%rax)
mov    -0x10(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x24(%rax)
mov    -0x10(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x34(%rax)
mov    -0x10(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x8(%rax)
mov    -0x10(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x18(%rax)
mov    -0x10(%rbp),%rax
movss  0xe19(%rip),%xmm0
movss  %xmm0,0x28(%rax)
mov    -0x10(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x38(%rax)
mov    -0x10(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0xc(%rax)
mov    -0x10(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x1c(%rax)
mov    -0x10(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x2c(%rax)
mov    -0x10(%rbp),%rax
movss  0xdd8(%rip),%xmm0
movss  %xmm0,0x3c(%rax)
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<getRotZ>:
push   %rbx
sub    $0x20,%rsp
mov    %rdi,%rbx
movss  %xmm0,0xc(%rsp)
call   1040 <fdegsin@plt>
movaps %xmm0,0x10(%rsp)
movss  0xc(%rsp),%xmm0
call   1030 <fdegcos@plt>
movss  %xmm0,(%rbx)
movaps 0xeb2(%rip),%xmm1
movaps 0x10(%rsp),%xmm2
xorps  %xmm2,%xmm1
movss  %xmm1,0x10(%rbx)
movss  %xmm2,0x4(%rbx)
movss  %xmm0,0x14(%rbx)
movq   $0x0,0x8(%rbx)
movabs $0x3f80000000000000,%rax
mov    %rax,0x38(%rbx)
xorps  %xmm0,%xmm0
movups %xmm0,0x18(%rbx)
movss  0xe86(%rip),%xmm0
movups %xmm0,0x28(%rbx)
add    $0x20,%rsp
pop    %rbx
ret

LLVM IR (-O0):
define void @getRotZ(float %0, float* %1) {
%3 = alloca float
%4 = alloca float*
%5 = alloca float
%6 = alloca float
store float %0, float* %3
store float* %1, float** %4
%7 = load float, float* %3
%8 = call float @fdegsin(float %7)
store float %8, float* %5
%9 = load float, float* %3
%10 = call float @fdegcos(float %9)
store float %10, float* %6
%11 = load float, float* %6
%12 = load float*, float** %4
%13 = getelementptr inbounds float, float* %12, i64 0
store float %11, float* %13
%14 = load float, float* %5
%15 = fneg float %14
%16 = load float*, float** %4
%17 = getelementptr inbounds float, float* %16, i64 4
store float %15, float* %17
%18 = load float*, float** %4
%19 = getelementptr inbounds float, float* %18, i64 8
store float 0.000000e+00, float* %19
%20 = load float*, float** %4
%21 = getelementptr inbounds float, float* %20, i64 12
store float 0.000000e+00, float* %21
%22 = load float, float* %5
%23 = load float*, float** %4
%24 = getelementptr inbounds float, float* %23, i64 1
store float %22, float* %24
%25 = load float, float* %6
%26 = load float*, float** %4
%27 = getelementptr inbounds float, float* %26, i64 5
store float %25, float* %27
%28 = load float*, float** %4
%29 = getelementptr inbounds float, float* %28, i64 9
store float 0.000000e+00, float* %29
%30 = load float*, float** %4
%31 = getelementptr inbounds float, float* %30, i64 13
store float 0.000000e+00, float* %31
%32 = load float*, float** %4
%33 = getelementptr inbounds float, float* %32, i64 2
store float 0.000000e+00, float* %33
%34 = load float*, float** %4
%35 = getelementptr inbounds float, float* %34, i64 6
store float 0.000000e+00, float* %35
%36 = load float*, float** %4
%37 = getelementptr inbounds float, float* %36, i64 10
store float 1.000000e+00, float* %37
%38 = load float*, float** %4
%39 = getelementptr inbounds float, float* %38, i64 14
store float 0.000000e+00, float* %39
%40 = load float*, float** %4
%41 = getelementptr inbounds float, float* %40, i64 3
store float 0.000000e+00, float* %41
%42 = load float*, float** %4
%43 = getelementptr inbounds float, float* %42, i64 7
store float 0.000000e+00, float* %43
%44 = load float*, float** %4
%45 = getelementptr inbounds float, float* %44, i64 11
store float 0.000000e+00, float* %45
%46 = load float*, float** %4
%47 = getelementptr inbounds float, float* %46, i64 15
store float 1.000000e+00, float* %47
ret void
}

LLVM IR (-O2):
define void @getRotZ(float %0, float* nocapture writeonly %1) {
%3 = tail call float @fdegsin(float %0)
%4 = tail call float @fdegcos(float %0)
store float %4, float* %1
%5 = fneg float %3
%6 = getelementptr inbounds float, float* %1, i64 4
store float %5, float* %6
%7 = getelementptr inbounds float, float* %1, i64 1
store float %3, float* %7
%8 = getelementptr inbounds float, float* %1, i64 5
store float %4, float* %8
%9 = getelementptr inbounds float, float* %1, i64 2
store float 0.000000e+00, float* %9
%10 = getelementptr inbounds float, float* %1, i64 6
%11 = getelementptr inbounds float, float* %1, i64 10
%12 = getelementptr inbounds float, float* %1, i64 14
store float 0.000000e+00, float* %12
%13 = getelementptr inbounds float, float* %1, i64 3
store float 0.000000e+00, float* %13
%14 = bitcast float* %10 to <4 x float>*
store <4 x float> zeroinitializer, <4 x float>* %14
%15 = bitcast float* %11 to <4 x float>*
store <4 x float> <float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00>, <4 x float>* %15
%16 = getelementptr inbounds float, float* %1, i64 15
store float 1.000000e+00, float* %16
ret void
}