#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*/ fflush(int /*<<< orphan*/);
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ scanf(char *, int *);
int /*<<< orphan*/ stdin;
int disp_menu() {
  int sel;
  printf("\n===================================\n");
  printf("     Employee Management System\n");
  printf("===================================\n");
  printf("1. Add an employee\n");
  printf("2. Retrieve all employees\n");
  printf("3. Remove an employee\n");
  printf("0. Exit\n");
  printf(">> Select menu : ");
  scanf("%d", &sel);
  fflush(stdin);
  return sel;
}


x86 assembly (clang, -O0):
<disp_menu>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xec1(%rip),%rdi
call   1030 <printf@plt>
lea    0xedb(%rip),%rdi
call   1030 <printf@plt>
lea    0xeaa(%rip),%rdi
call   1030 <printf@plt>
lea    0xee4(%rip),%rdi
call   1030 <printf@plt>
lea    0xeec(%rip),%rdi
call   1030 <printf@plt>
lea    0xefb(%rip),%rdi
call   1030 <printf@plt>
lea    0xf06(%rip),%rdi
call   1030 <printf@plt>
lea    0xf03(%rip),%rdi
call   1030 <printf@plt>
lea    0xf09(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1050 <scanf@plt>
mov    0x2e39(%rip),%rax
mov    (%rax),%edi
call   1040 <fflush@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<disp_menu>:
push   %rax
lea    0xecd(%rip),%rdi
call   1030 <puts@plt>
lea    0xee6(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb6(%rip),%rdi
call   1030 <puts@plt>
lea    0xeee(%rip),%rdi
call   1030 <puts@plt>
lea    0xef5(%rip),%rdi
call   1030 <puts@plt>
lea    0xf03(%rip),%rdi
call   1030 <puts@plt>
lea    0xf0d(%rip),%rdi
call   1030 <puts@plt>
lea    0xe64(%rip),%rdi
call   1040 <printf@plt>
lea    0xe6a(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1060 <scanf@plt>
mov    0x2e2f(%rip),%rax
mov    (%rax),%edi
call   1050 <fflush@plt>
mov    0x4(%rsp),%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [38 x i8] c"\0A===================================\0A\00"
@.str.1 = [33 x i8] c" Employee Management System\0A\00"
@.str.2 = [37 x i8] c"===================================\0A\00"
@.str.3 = [20 x i8] c"1. Add an employee\0A\00"
@.str.4 = [27 x i8] c"2. Retrieve all employees\0A\00"
@.str.5 = [23 x i8] c"3. Remove an employee\0A\00"
@.str.6 = [9 x i8] c"0. Exit\0A\00"
@.str.7 = [18 x i8] c">> Select menu : \00"
@.str.8 = [3 x i8] c"%d\00"
@stdin = global i32 0
define i32 @disp_menu() {
%1 = alloca i32
%2 = call i32 @printf(i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.1, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str.2, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str.4, i64 0, i64 0))
%7 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.5, i64 0, i64 0))
%8 = call i32 @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.6, i64 0, i64 0))
%9 = call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.7, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.8, i64 0, i64 0), i32* %1)
%11 = load i32, i32* @stdin
%12 = call i32 @fflush(i32 %11)
%13 = load i32, i32* %1
ret i32 %13
}

LLVM IR (-O2):
@.str.7 = [18 x i8] c">> Select menu : \00"
@.str.8 = [3 x i8] c"%d\00"
@stdin = global i32 0
@str = [37 x i8] c"\0A===================================\00"
@str.9 = [32 x i8] c" Employee Management System\00"
@str.10 = [36 x i8] c"===================================\00"
@str.11 = [19 x i8] c"1. Add an employee\00"
@str.12 = [26 x i8] c"2. Retrieve all employees\00"
@str.13 = [22 x i8] c"3. Remove an employee\00"
@str.14 = [8 x i8] c"0. Exit\00"
define i32 @disp_menu() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([37 x i8], [37 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str.9, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([36 x i8], [36 x i8]* @str.10, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str.11, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([26 x i8], [26 x i8]* @str.12, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @str.13, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @str.14, i64 0, i64 0))
%10 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.7, i64 0, i64 0))
%11 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.8, i64 0, i64 0), i32* %1)
%12 = load i32, i32* @stdin
%13 = call i32 @fflush(i32 %12)
%14 = load i32, i32* %1
ret i32 %14
}