#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 getpid();
int getuid();
int /*<<< orphan*/ printf(char *, int);
void printRealAndEffectiveId() {
  printf("user id = %d \n", getuid());
  printf("effective user id = %d\n", geteuid());
  printf("group id = %d \n", getpid());
  printf("effective group id = %d\n", getegid());
}


x86 assembly (clang, -O0):
<printRealAndEffectiveId>:
push   %rbp
mov    %rsp,%rbp
mov    $0x0,%al
call   1040 <getuid@plt>
mov    %eax,%esi
lea    0xe9c(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1060 <geteuid@plt>
mov    %eax,%esi
lea    0xe96(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1030 <getpid@plt>
mov    %eax,%esi
lea    0xe99(%rip),%rdi
call   1050 <printf@plt>
mov    $0x0,%al
call   1070 <getegid@plt>
mov    %eax,%esi
lea    0xe94(%rip),%rdi
call   1050 <printf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<printRealAndEffectiveId>:
push   %rax
xor    %eax,%eax
call   1040 <getuid@plt>
lea    0xea1(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
xor    %eax,%eax
call   1060 <geteuid@plt>
lea    0xe9b(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
xor    %eax,%eax
call   1030 <getpid@plt>
lea    0xe9e(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
xor    %eax,%eax
call   1070 <getegid@plt>
lea    0xe99(%rip),%rdi
mov    %eax,%esi
pop    %rax
jmp    1050 <printf@plt>

LLVM IR (-O0):
@.str = [15 x i8] c"user id = %d \0A\00"
@.str.1 = [24 x i8] c"effective user id = %d\0A\00"
@.str.2 = [16 x i8] c"group id = %d \0A\00"
@.str.3 = [25 x i8] c"effective group id = %d\0A\00"
define void @printRealAndEffectiveId() {
%1 = call i32 (...) @getuid()
%2 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 %1)
%3 = call i32 (...) @geteuid()
%4 = call i32 @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = call i32 (...) @getpid()
%6 = call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.2, i64 0, i64 0), i32 %5)
%7 = call i32 (...) @getegid()
%8 = call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.3, i64 0, i64 0), i32 %7)
ret void
}

LLVM IR (-O2):
@.str = [15 x i8] c"user id = %d \0A\00"
@.str.1 = [24 x i8] c"effective user id = %d\0A\00"
@.str.2 = [16 x i8] c"group id = %d \0A\00"
@.str.3 = [25 x i8] c"effective group id = %d\0A\00"
define void @printRealAndEffectiveId() {
%1 = tail call i32 (...) @getuid()
%2 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 %1)
%3 = tail call i32 (...) @geteuid()
%4 = tail call i32 @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = tail call i32 (...) @getpid()
%6 = tail call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.2, i64 0, i64 0), i32 %5)
%7 = tail call i32 (...) @getegid()
%8 = tail call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.3, i64 0, i64 0), i32 %7)
ret void
}