#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 */
scalar_t__ cos(float);
scalar_t__ sin(float);
void matrix4RotateZf(float *mat, float rot) {
  mat[10] = mat[15] = 1;
  mat[2] = mat[3] = mat[6] = mat[7] = mat[8] = mat[9] = mat[11] = mat[12] =
      mat[13] = mat[14] = 0;
  mat[5] = mat[0] = (float)cos(rot);
  mat[1] = -(mat[4] = (float)sin(rot));
}


x86 assembly (clang, -O0):
<matrix4RotateZf>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
movss  %xmm0,-0xc(%rbp)
mov    -0x8(%rbp),%rax
movss  0xec3(%rip),%xmm0
movss  %xmm0,0x3c(%rax)
mov    -0x8(%rbp),%rax
movss  0xeb2(%rip),%xmm0
movss  %xmm0,0x28(%rax)
mov    -0x8(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x38(%rax)
mov    -0x8(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x34(%rax)
mov    -0x8(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x30(%rax)
mov    -0x8(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x2c(%rax)
mov    -0x8(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x24(%rax)
mov    -0x8(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x20(%rax)
mov    -0x8(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x1c(%rax)
mov    -0x8(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x18(%rax)
mov    -0x8(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0xc(%rax)
mov    -0x8(%rbp),%rax
xorps  %xmm0,%xmm0
movss  %xmm0,0x8(%rax)
movss  -0xc(%rbp),%xmm0
call   1040 <cos@plt>
cvtsi2ss %rax,%xmm0
mov    -0x8(%rbp),%rax
movss  %xmm0,(%rax)
mov    -0x8(%rbp),%rax
movss  %xmm0,0x14(%rax)
movss  -0xc(%rbp),%xmm0
call   1030 <sin@plt>
cvtsi2ss %rax,%xmm0
mov    -0x8(%rbp),%rax
movss  %xmm0,0x10(%rax)
movd   %xmm0,%eax
xor    $0x80000000,%eax
movd   %eax,%xmm0
mov    -0x8(%rbp),%rax
movss  %xmm0,0x4(%rax)
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<matrix4RotateZf>:
push   %rbx
sub    $0x10,%rsp
movss  %xmm0,0xc(%rsp)
mov    %rdi,%rbx
movl   $0x3f800000,0x3c(%rdi)
movl   $0x3f800000,0x28(%rdi)
movq   $0x0,0x8(%rdi)
xorps  %xmm1,%xmm1
movups %xmm1,0x18(%rdi)
movups %xmm1,0x2c(%rdi)
call   1040 <cos@plt>
xorps  %xmm0,%xmm0
cvtsi2ss %rax,%xmm0
movss  %xmm0,(%rbx)
movss  %xmm0,0x14(%rbx)
movss  0xc(%rsp),%xmm0
call   1030 <sin@plt>
xorps  %xmm0,%xmm0
cvtsi2ss %rax,%xmm0
movss  %xmm0,0x10(%rbx)
xorps  0xe7c(%rip),%xmm0
movss  %xmm0,0x4(%rbx)
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
define void @matrix4RotateZf(float* %0, float %1) {
%3 = alloca float*
%4 = alloca float
store float* %0, float** %3
store float %1, float* %4
%5 = load float*, float** %3
%6 = getelementptr inbounds float, float* %5, i64 15
store float 1.000000e+00, float* %6
%7 = load float*, float** %3
%8 = getelementptr inbounds float, float* %7, i64 10
store float 1.000000e+00, float* %8
%9 = load float*, float** %3
%10 = getelementptr inbounds float, float* %9, i64 14
store float 0.000000e+00, float* %10
%11 = load float*, float** %3
%12 = getelementptr inbounds float, float* %11, i64 13
store float 0.000000e+00, float* %12
%13 = load float*, float** %3
%14 = getelementptr inbounds float, float* %13, i64 12
store float 0.000000e+00, float* %14
%15 = load float*, float** %3
%16 = getelementptr inbounds float, float* %15, i64 11
store float 0.000000e+00, float* %16
%17 = load float*, float** %3
%18 = getelementptr inbounds float, float* %17, i64 9
store float 0.000000e+00, float* %18
%19 = load float*, float** %3
%20 = getelementptr inbounds float, float* %19, i64 8
store float 0.000000e+00, float* %20
%21 = load float*, float** %3
%22 = getelementptr inbounds float, float* %21, i64 7
store float 0.000000e+00, float* %22
%23 = load float*, float** %3
%24 = getelementptr inbounds float, float* %23, i64 6
store float 0.000000e+00, float* %24
%25 = load float*, float** %3
%26 = getelementptr inbounds float, float* %25, i64 3
store float 0.000000e+00, float* %26
%27 = load float*, float** %3
%28 = getelementptr inbounds float, float* %27, i64 2
store float 0.000000e+00, float* %28
%29 = load float, float* %4
%30 = call i64 @cos(float %29)
%31 = sitofp i64 %30 to float
%32 = load float*, float** %3
%33 = getelementptr inbounds float, float* %32, i64 0
store float %31, float* %33
%34 = load float*, float** %3
%35 = getelementptr inbounds float, float* %34, i64 5
store float %31, float* %35
%36 = load float, float* %4
%37 = call i64 @sin(float %36)
%38 = sitofp i64 %37 to float
%39 = load float*, float** %3
%40 = getelementptr inbounds float, float* %39, i64 4
store float %38, float* %40
%41 = fneg float %38
%42 = load float*, float** %3
%43 = getelementptr inbounds float, float* %42, i64 1
store float %41, float* %43
ret void
}

LLVM IR (-O2):
define void @matrix4RotateZf(float* nocapture writeonly %0, float %1) {
%3 = getelementptr inbounds float, float* %0, i64 15
store float 1.000000e+00, float* %3
%4 = getelementptr inbounds float, float* %0, i64 10
store float 1.000000e+00, float* %4
%5 = getelementptr inbounds float, float* %0, i64 11
%6 = getelementptr inbounds float, float* %0, i64 6
%7 = getelementptr inbounds float, float* %0, i64 3
store float 0.000000e+00, float* %7
%8 = getelementptr inbounds float, float* %0, i64 2
store float 0.000000e+00, float* %8
%9 = bitcast float* %6 to i8*
%10 = bitcast float* %5 to i8*
%11 = tail call i64 @cos(float %1)
%12 = sitofp i64 %11 to float
store float %12, float* %0
%13 = getelementptr inbounds float, float* %0, i64 5
store float %12, float* %13
%14 = tail call i64 @sin(float %1)
%15 = sitofp i64 %14 to float
%16 = getelementptr inbounds float, float* %0, i64 4
store float %15, float* %16
%17 = fneg float %15
%18 = getelementptr inbounds float, float* %0, i64 1
store float %17, float* %18
ret void
}