#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 getegid();
int geteuid();
int getgid();
int getpid();
int getppid();
int getuid();
int /*<<< orphan*/ printf(char *, int);
int main(int argc, char const *argv[]) {
  printf("Process ID: %d\n", getpid());
  printf("Parent Process ID: %d\n", getppid());
  printf("Real User ID: %u\n", getuid());
  printf("Effective User ID: %u\n", geteuid());
  printf("Real Group ID: %u\n", getgid());
  printf("Effective Group ID: %u\n", getegid());
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    $0x0,%al
call   1030 <getpid@plt>
mov    %eax,%esi
lea    0xe71(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1090 <getppid@plt>
mov    %eax,%esi
lea    0xe55(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1040 <getuid@plt>
mov    %eax,%esi
lea    0xe57(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1060 <geteuid@plt>
mov    %eax,%esi
lea    0xe54(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1070 <getgid@plt>
mov    %eax,%esi
lea    0xe56(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1080 <getegid@plt>
mov    %eax,%esi
lea    0xe54(%rip),%rdi
call   1050 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
xor    %eax,%eax
call   1030 <getpid@plt>
lea    0xe88(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
xor    %eax,%eax
call   1090 <getppid@plt>
lea    0xe6c(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
xor    %eax,%eax
call   1040 <getuid@plt>
lea    0xe6e(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
xor    %eax,%eax
call   1060 <geteuid@plt>
lea    0xe6b(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
xor    %eax,%eax
call   1070 <getgid@plt>
lea    0xe6d(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
xor    %eax,%eax
call   1080 <getegid@plt>
lea    0xe6b(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [16 x i8] c"Process ID: %d\0A\00"
@.str.1 = [23 x i8] c"Parent Process ID: %d\0A\00"
@.str.2 = [18 x i8] c"Real User ID: %u\0A\00"
@.str.3 = [23 x i8] c"Effective User ID: %u\0A\00"
@.str.4 = [19 x i8] c"Real Group ID: %u\0A\00"
@.str.5 = [24 x i8] c"Effective Group ID: %u\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = call i32 (...) @getpid()
%7 = call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0), i32 %6)
%8 = call i32 (...) @getppid()
%9 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.1, i64 0, i64 0), i32 %8)
%10 = call i32 (...) @getuid()
%11 = call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0), i32 %10)
%12 = call i32 (...) @geteuid()
%13 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.3, i64 0, i64 0), i32 %12)
%14 = call i32 (...) @getgid()
%15 = call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), i32 %14)
%16 = call i32 (...) @getegid()
%17 = call i32 @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.5, i64 0, i64 0), i32 %16)
ret i32 0
}

LLVM IR (-O2):
@.str = [16 x i8] c"Process ID: %d\0A\00"
@.str.1 = [23 x i8] c"Parent Process ID: %d\0A\00"
@.str.2 = [18 x i8] c"Real User ID: %u\0A\00"
@.str.3 = [23 x i8] c"Effective User ID: %u\0A\00"
@.str.4 = [19 x i8] c"Real Group ID: %u\0A\00"
@.str.5 = [24 x i8] c"Effective Group ID: %u\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 (...) @getpid()
%4 = tail call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0), i32 %3)
%5 = tail call i32 (...) @getppid()
%6 = tail call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.1, i64 0, i64 0), i32 %5)
%7 = tail call i32 (...) @getuid()
%8 = tail call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0), i32 %7)
%9 = tail call i32 (...) @geteuid()
%10 = tail call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.3, i64 0, i64 0), i32 %9)
%11 = tail call i32 (...) @getgid()
%12 = tail call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0), i32 %11)
%13 = tail call i32 (...) @getegid()
%14 = tail call i32 @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.5, i64 0, i64 0), i32 %13)
ret i32 0
}