#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);
int main() {
  int a = 0;
  printf("%d\n", a++);
  printf("%d\n", a++);
  printf("%d\n", a--);
  printf("%d\n", a--);
  printf("%d\n", ++a);
  printf("%d\n", ++a);
  printf("%d\n", --a);
  printf("%d\n", --a);
  return a;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%esi
mov    %esi,%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
lea    0xec8(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
mov    %esi,%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
lea    0xeb1(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
mov    %esi,%eax
add    $0xffffffff,%eax
mov    %eax,-0x8(%rbp)
lea    0xe9a(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
mov    %esi,%eax
add    $0xffffffff,%eax
mov    %eax,-0x8(%rbp)
lea    0xe83(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
add    $0x1,%esi
mov    %esi,-0x8(%rbp)
lea    0xe6e(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
add    $0x1,%esi
mov    %esi,-0x8(%rbp)
lea    0xe59(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
add    $0xffffffff,%esi
mov    %esi,-0x8(%rbp)
lea    0xe44(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
add    $0xffffffff,%esi
mov    %esi,-0x8(%rbp)
lea    0xe2f(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xee8(%rip),%rbx
mov    %rbx,%rdi
xor    %esi,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x1,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x1,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x1,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x1,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
xor    %esi,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
%3 = load i32, i32* %2
%4 = add nsw i32 %3, 1
store i32 %4, i32* %2
%5 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %3)
%6 = load i32, i32* %2
%7 = add nsw i32 %6, 1
store i32 %7, i32* %2
%8 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %6)
%9 = load i32, i32* %2
%10 = add nsw i32 %9, -1
store i32 %10, i32* %2
%11 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %9)
%12 = load i32, i32* %2
%13 = add nsw i32 %12, -1
store i32 %13, i32* %2
%14 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %12)
%15 = load i32, i32* %2
%16 = add nsw i32 %15, 1
store i32 %16, i32* %2
%17 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %16)
%18 = load i32, i32* %2
%19 = add nsw i32 %18, 1
store i32 %19, i32* %2
%20 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %19)
%21 = load i32, i32* %2
%22 = add nsw i32 %21, -1
store i32 %22, i32* %2
%23 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %22)
%24 = load i32, i32* %2
%25 = add nsw i32 %24, -1
store i32 %25, i32* %2
%26 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %25)
%27 = load i32, i32* %2
ret i32 %27
}

LLVM IR (-O2):
@.str = [4 x i8] c"%d\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 0)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 1)
%3 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 2)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 1)
%5 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 1)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 2)
%7 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 1)
%8 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 0)
ret i32 0
}