#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 const cos(double const);
double const sin(double const);
void get_xyz(const double *x, double *xyz) {
  xyz[0] = x[0] * cos(x[1]);
  xyz[1] = x[0] * sin(x[1]);
  xyz[2] = x[2];
}


x86 assembly (clang, -O0):
<get_xyz>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    -0x8(%rbp),%rax
movsd  (%rax),%xmm0
movsd  %xmm0,-0x20(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x8(%rax),%xmm0
call   1040 <cos@plt>
movaps %xmm0,%xmm1
movsd  -0x20(%rbp),%xmm0
mulsd  %xmm1,%xmm0
mov    -0x10(%rbp),%rax
movsd  %xmm0,(%rax)
mov    -0x8(%rbp),%rax
movsd  (%rax),%xmm0
movsd  %xmm0,-0x18(%rbp)
mov    -0x8(%rbp),%rax
movsd  0x8(%rax),%xmm0
call   1030 <sin@plt>
movaps %xmm0,%xmm1
movsd  -0x18(%rbp),%xmm0
mulsd  %xmm1,%xmm0
mov    -0x10(%rbp),%rax
movsd  %xmm0,0x8(%rax)
mov    -0x8(%rbp),%rax
movsd  0x10(%rax),%xmm0
mov    -0x10(%rbp),%rax
movsd  %xmm0,0x10(%rax)
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<get_xyz>:
push   %r14
push   %rbx
push   %rax
mov    %rsi,%r14
mov    %rdi,%rbx
movsd  (%rdi),%xmm0
movsd  %xmm0,(%rsp)
movsd  0x8(%rdi),%xmm0
call   1040 <cos@plt>
mulsd  (%rsp),%xmm0
movsd  %xmm0,(%r14)
movsd  (%rbx),%xmm0
movsd  %xmm0,(%rsp)
movsd  0x8(%rbx),%xmm0
call   1030 <sin@plt>
mulsd  (%rsp),%xmm0
movsd  %xmm0,0x8(%r14)
movsd  0x10(%rbx),%xmm0
movsd  %xmm0,0x10(%r14)
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
define void @get_xyz(double* %0, double* %1) {
%3 = alloca double*
%4 = alloca double*
store double* %0, double** %3
store double* %1, double** %4
%5 = load double*, double** %3
%6 = getelementptr inbounds double, double* %5, i64 0
%7 = load double, double* %6
%8 = load double*, double** %3
%9 = getelementptr inbounds double, double* %8, i64 1
%10 = load double, double* %9
%11 = call double @cos(double %10)
%12 = fmul double %7, %11
%13 = load double*, double** %4
%14 = getelementptr inbounds double, double* %13, i64 0
store double %12, double* %14
%15 = load double*, double** %3
%16 = getelementptr inbounds double, double* %15, i64 0
%17 = load double, double* %16
%18 = load double*, double** %3
%19 = getelementptr inbounds double, double* %18, i64 1
%20 = load double, double* %19
%21 = call double @sin(double %20)
%22 = fmul double %17, %21
%23 = load double*, double** %4
%24 = getelementptr inbounds double, double* %23, i64 1
store double %22, double* %24
%25 = load double*, double** %3
%26 = getelementptr inbounds double, double* %25, i64 2
%27 = load double, double* %26
%28 = load double*, double** %4
%29 = getelementptr inbounds double, double* %28, i64 2
store double %27, double* %29
ret void
}

LLVM IR (-O2):
define void @get_xyz(double* nocapture %0, double* nocapture writeonly %1) {
%3 = load double, double* %0
%4 = getelementptr inbounds double, double* %0, i64 1
%5 = load double, double* %4
%6 = tail call double @cos(double %5)
%7 = fmul double %3, %6
store double %7, double* %1
%8 = load double, double* %0
%9 = load double, double* %4
%10 = tail call double @sin(double %9)
%11 = fmul double %8, %10
%12 = getelementptr inbounds double, double* %1, i64 1
store double %11, double* %12
%13 = getelementptr inbounds double, double* %0, i64 2
%14 = load double, double* %13
%15 = getelementptr inbounds double, double* %1, i64 2
store double %14, double* %15
ret void
}