#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 main() {
  int i, j;
  i = 4;
  j = i++;
  printf("i = 4; j = i++ ;\n");
  printf("i = %d, j = %d\n\n", i, j);
  i = 4;
  j = i--;
  printf("i = 4; j = i-- ;\n");
  printf("i = %d, j = %d\n\n", i, j);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x4,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    %eax,%ecx
add    $0x1,%ecx
mov    %ecx,-0x4(%rbp)
mov    %eax,-0x8(%rbp)
lea    0xecc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%esi
mov    -0x8(%rbp),%edx
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x4,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    %eax,%ecx
add    $0xffffffff,%ecx
mov    %ecx,-0x4(%rbp)
mov    %eax,-0x8(%rbp)
lea    0xeb8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%esi
mov    -0x8(%rbp),%edx
lea    0xe93(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xee9(%rip),%rdi
call   1030 <puts@plt>
lea    0xecc(%rip),%rbx
mov    %rbx,%rdi
mov    $0x5,%esi
mov    $0x4,%edx
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xed3(%rip),%rdi
call   1030 <puts@plt>
mov    %rbx,%rdi
mov    $0x3,%esi
mov    $0x4,%edx
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [18 x i8] c"i = 4; j = i++ ;\0A\00"
@.str.1 = [17 x i8] c"i = %d, j = %d\0A\0A\00"
@.str.2 = [18 x i8] c"i = 4; j = i-- ;\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 4, i32* %1
%3 = load i32, i32* %1
%4 = add nsw i32 %3, 1
store i32 %4, i32* %1
store i32 %3, i32* %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0))
%6 = load i32, i32* %1
%7 = load i32, i32* %2
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i32 %6, i32 %7)
store i32 4, i32* %1
%9 = load i32, i32* %1
%10 = add nsw i32 %9, -1
store i32 %10, i32* %1
store i32 %9, i32* %2
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0))
%12 = load i32, i32* %1
%13 = load i32, i32* %2
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i32 %12, i32 %13)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [17 x i8] c"i = %d, j = %d\0A\0A\00"
@str = [17 x i8] c"i = 4; j = i++ ;\00"
@str.3 = [17 x i8] c"i = 4; j = i-- ;\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i32 5, i32 4)
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @str.3, i64 0, i64 0))
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i32 3, i32 4)
ret i32 0
}