#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 */
double cos(double);
int /*<<< orphan*/ doubles_mat44_identity(double *);
double sin(double);
void doubles_mat44_rotate_z(double rad, double out[16]) {
  doubles_mat44_identity(out);
  double s = sin(rad), c = cos(rad);
  out[0 * 4 + 0] = c;
  out[0 * 4 + 1] = -s;
  out[1 * 4 + 0] = s;
  out[1 * 4 + 1] = c;
}


x86 assembly (clang, -O0):
<doubles_mat44_rotate_z>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movsd  %xmm0,-0x8(%rbp)
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
call   1050 <doubles_mat44_identity@plt>
movsd  -0x8(%rbp),%xmm0
call   1030 <sin@plt>
movsd  %xmm0,-0x18(%rbp)
movsd  -0x8(%rbp),%xmm0
call   1040 <cos@plt>
movsd  %xmm0,-0x20(%rbp)
movsd  -0x20(%rbp),%xmm0
mov    -0x10(%rbp),%rax
movsd  %xmm0,(%rax)
movsd  -0x18(%rbp),%xmm0
movq   %xmm0,%rax
movabs $0x8000000000000000,%rcx
xor    %rcx,%rax
movq   %rax,%xmm0
mov    -0x10(%rbp),%rax
movsd  %xmm0,0x8(%rax)
movsd  -0x18(%rbp),%xmm0
mov    -0x10(%rbp),%rax
movsd  %xmm0,0x20(%rax)
movsd  -0x20(%rbp),%xmm0
mov    -0x10(%rbp),%rax
movsd  %xmm0,0x28(%rax)
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<doubles_mat44_rotate_z>:
push   %rbx
sub    $0x20,%rsp
mov    %rdi,%rbx
movsd  %xmm0,0x8(%rsp)
call   1050 <doubles_mat44_identity@plt>
movsd  0x8(%rsp),%xmm0
call   1030 <sin@plt>
movaps %xmm0,0x10(%rsp)
movsd  0x8(%rsp),%xmm0
call   1040 <cos@plt>
movsd  %xmm0,(%rbx)
movaps 0xe97(%rip),%xmm1
movaps 0x10(%rsp),%xmm2
xorps  %xmm2,%xmm1
movlps %xmm1,0x8(%rbx)
movsd  %xmm2,0x20(%rbx)
movsd  %xmm0,0x28(%rbx)
add    $0x20,%rsp
pop    %rbx
ret

LLVM IR (-O0):
define void @doubles_mat44_rotate_z(double %0, double* %1) {
%3 = alloca double
%4 = alloca double*
%5 = alloca double
%6 = alloca double
store double %0, double* %3
store double* %1, double** %4
%7 = load double*, double** %4
%8 = call i32 @doubles_mat44_identity(double* %7)
%9 = load double, double* %3
%10 = call double @sin(double %9)
store double %10, double* %5
%11 = load double, double* %3
%12 = call double @cos(double %11)
store double %12, double* %6
%13 = load double, double* %6
%14 = load double*, double** %4
%15 = getelementptr inbounds double, double* %14, i64 0
store double %13, double* %15
%16 = load double, double* %5
%17 = fneg double %16
%18 = load double*, double** %4
%19 = getelementptr inbounds double, double* %18, i64 1
store double %17, double* %19
%20 = load double, double* %5
%21 = load double*, double** %4
%22 = getelementptr inbounds double, double* %21, i64 4
store double %20, double* %22
%23 = load double, double* %6
%24 = load double*, double** %4
%25 = getelementptr inbounds double, double* %24, i64 5
store double %23, double* %25
ret void
}

LLVM IR (-O2):
define void @doubles_mat44_rotate_z(double %0, double* %1) {
%3 = tail call i32 @doubles_mat44_identity(double* %1)
%4 = tail call double @sin(double %0)
%5 = tail call double @cos(double %0)
store double %5, double* %1
%6 = fneg double %4
%7 = getelementptr inbounds double, double* %1, i64 1
store double %6, double* %7
%8 = getelementptr inbounds double, double* %1, i64 4
store double %4, double* %8
%9 = getelementptr inbounds double, double* %1, i64 5
store double %5, double* %9
ret void
}