#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 */
int /*<<< orphan*/ printf(char *, unsigned int);
int main() {
  unsigned int a = 1024;
  unsigned int b = 345875;
  printf("%u\n", a | 2);
  printf("%u\n", a | 31);
  printf("%u\n", b | 1);
  printf("%u\n", 2458 | 3);
  printf("%u\n", b | 9);
  printf("%u\n", 0xff | 4);
  printf("%u\n", b | 31);
  printf("%u\n", b | 0);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x400,-0x8(%rbp)
movl   $0x54713,-0xc(%rbp)
mov    -0x8(%rbp),%esi
or     $0x2,%esi
lea    0xec6(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
or     $0x1f,%esi
lea    0xeb4(%rip),%rdi
call   1030 <printf@plt>
mov    -0xc(%rbp),%esi
or     $0x1,%esi
lea    0xea2(%rip),%rdi
call   1030 <printf@plt>
lea    0xe96(%rip),%rdi
mov    $0x99b,%esi
call   1030 <printf@plt>
mov    -0xc(%rbp),%esi
or     $0x9,%esi
lea    0xe7f(%rip),%rdi
call   1030 <printf@plt>
lea    0xe73(%rip),%rdi
mov    $0xff,%esi
call   1030 <printf@plt>
mov    -0xc(%rbp),%esi
or     $0x1f,%esi
lea    0xe5c(%rip),%rdi
call   1030 <printf@plt>
mov    -0xc(%rbp),%esi
or     $0x0,%esi
lea    0xe4a(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xee8(%rip),%rbx
mov    %rbx,%rdi
mov    $0x402,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x41f,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x54713,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x99b,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x5471b,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0xff,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x5471f,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x54713,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%u\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 1024, i32* %2
store i32 345875, i32* %3
%4 = load i32, i32* %2
%5 = or i32 %4, 2
%6 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %5)
%7 = load i32, i32* %2
%8 = or i32 %7, 31
%9 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %8)
%10 = load i32, i32* %3
%11 = or i32 %10, 1
%12 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %11)
%13 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 2459)
%14 = load i32, i32* %3
%15 = or i32 %14, 9
%16 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %15)
%17 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 255)
%18 = load i32, i32* %3
%19 = or i32 %18, 31
%20 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %19)
%21 = load i32, i32* %3
%22 = or i32 %21, 0
%23 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %22)
ret i32 0
}

LLVM IR (-O2):
@.str = [4 x i8] c"%u\0A\00"
define i32 @main() {
%1 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 1026)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 1055)
%3 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 345875)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 2459)
%5 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 345883)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 255)
%7 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 345887)
%8 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 345875)
ret i32 0
}