#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 *, ...);
int /*<<< orphan*/ swap(int *, int *);
int main() {
  int a = 5;
  int b = 12;
  printf("%d\n", a);
  printf("%p\n", &a);
  printf("%d\n", b);
  printf("%p\n", &b);
  swap(&a, &b);
  printf("%d\n", a);
  printf("%d\n", b);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x5,-0x4(%rbp)
movl   $0xc,-0x8(%rbp)
mov    -0x4(%rbp),%esi
lea    0xec0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb6(%rip),%rdi
lea    -0x4(%rbp),%rsi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
lea    0xe9d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe93(%rip),%rdi
lea    -0x8(%rbp),%rsi
mov    $0x0,%al
call   1030 <printf@plt>
lea    -0x4(%rbp),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <swap@plt>
mov    -0x4(%rbp),%esi
lea    0xe6d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
lea    0xe5c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
movl   $0x5,0x4(%rsp)
movl   $0xc,(%rsp)
lea    0xec2(%rip),%r14
mov    %r14,%rdi
mov    $0x5,%esi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xeb0(%rip),%r12
lea    0x4(%rsp),%r15
mov    %r12,%rdi
mov    %r15,%rsi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %r14,%rdi
mov    $0xc,%esi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %rsp,%rbx
mov    %r12,%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %r15,%rdi
mov    %rbx,%rsi
call   1040 <swap@plt>
mov    0x4(%rsp),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    (%rsp),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%d\0A\00"
@.str.1 = [4 x i8] c"%p\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 5, i32* %1
store i32 12, i32* %2
%3 = load i32, i32* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %3)
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%6 = load i32, i32* %2
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %6)
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%9 = call i32 @swap(i32* %1, i32* %2)
%10 = load i32, i32* %1
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %10)
%12 = load i32, i32* %2
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %12)
ret i32 0
}

LLVM IR (-O2):
@.str = [4 x i8] c"%d\0A\00"
@.str.1 = [4 x i8] c"%p\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = bitcast i32* %1 to i8*
store i32 5, i32* %1
%4 = bitcast i32* %2 to i8*
store i32 12, i32* %2
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 5)
%6 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%7 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 12)
%8 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%9 = call i32 @swap(i32* %1, i32* %2)
%10 = load i32, i32* %1
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %10)
%12 = load i32, i32* %2
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %12)
ret i32 0
}