#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 add(int, int);
int divide(int, int);
int multiply(int, int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *, int *);
int subtract(int, int);
int main() {
  int a, b;
  printf("Hello World\n\n");
  printf("Enter Two Numbers(A B): ");
  scanf("%d %d", &a, &b);
  printf("Addition: %d\n", add(a, b));
  printf("Subtraction: %d\n", subtract(a, b));
  printf("Multiplication: %d\n", multiply(a, b));
  printf("Division: %d\n\n", divide(a, b));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xe8a(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
lea    0xe8a(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
lea    0xe95(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
call   1070 <scanf@plt>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1030 <add@plt>
mov    %eax,%esi
lea    0xe7a(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1080 <subtract@plt>
mov    %eax,%esi
lea    0xe6d(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1040 <multiply@plt>
mov    %eax,%esi
lea    0xe63(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1050 <divide@plt>
mov    %eax,%esi
lea    0xe5c(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xee9(%rip),%rdi
call   1050 <puts@plt>
lea    0xe7c(%rip),%rdi
xor    %eax,%eax
call   1070 <printf@plt>
lea    0xe87(%rip),%rdi
lea    0x4(%rsp),%rsi
mov    %rsp,%rdx
call   1080 <scanf@plt>
mov    0x4(%rsp),%edi
mov    (%rsp),%esi
call   1030 <add@plt>
lea    0xe6d(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1070 <printf@plt>
mov    0x4(%rsp),%edi
mov    (%rsp),%esi
call   1090 <subtract@plt>
lea    0xe5f(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1070 <printf@plt>
mov    0x4(%rsp),%edi
mov    (%rsp),%esi
call   1040 <multiply@plt>
lea    0xe54(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1070 <printf@plt>
mov    0x4(%rsp),%edi
mov    (%rsp),%esi
call   1060 <divide@plt>
lea    0xe4c(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1070 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [14 x i8] c"Hello World\0A\0A\00"
@.str.1 = [25 x i8] c"Enter Two Numbers(A B): \00"
@.str.2 = [6 x i8] c"%d %d\00"
@.str.3 = [14 x i8] c"Addition: %d\0A\00"
@.str.4 = [17 x i8] c"Subtraction: %d\0A\00"
@.str.5 = [20 x i8] c"Multiplication: %d\0A\00"
@.str.6 = [15 x i8] c"Division: %d\0A\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i32* %2, i32* %3)
%7 = load i32, i32* %2
%8 = load i32, i32* %3
%9 = call i32 @add(i32 %7, i32 %8)
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %9)
%11 = load i32, i32* %2
%12 = load i32, i32* %3
%13 = call i32 @subtract(i32 %11, i32 %12)
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.4, i64 0, i64 0), i32 %13)
%15 = load i32, i32* %2
%16 = load i32, i32* %3
%17 = call i32 @multiply(i32 %15, i32 %16)
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.5, i64 0, i64 0), i32 %17)
%19 = load i32, i32* %2
%20 = load i32, i32* %3
%21 = call i32 @divide(i32 %19, i32 %20)
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.6, i64 0, i64 0), i32 %21)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [25 x i8] c"Enter Two Numbers(A B): \00"
@.str.2 = [6 x i8] c"%d %d\00"
@.str.3 = [14 x i8] c"Addition: %d\0A\00"
@.str.4 = [17 x i8] c"Subtraction: %d\0A\00"
@.str.5 = [20 x i8] c"Multiplication: %d\0A\00"
@.str.6 = [15 x i8] c"Division: %d\0A\0A\00"
@str = [13 x i8] c"Hello World\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = bitcast i32* %1 to i8*
%4 = bitcast i32* %2 to i8*
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @str, i64 0, i64 0))
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i32* %1, i32* %2)
%8 = load i32, i32* %1
%9 = load i32, i32* %2
%10 = call i32 @add(i32 %8, i32 %9)
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %10)
%12 = load i32, i32* %1
%13 = load i32, i32* %2
%14 = call i32 @subtract(i32 %12, i32 %13)
%15 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.4, i64 0, i64 0), i32 %14)
%16 = load i32, i32* %1
%17 = load i32, i32* %2
%18 = call i32 @multiply(i32 %16, i32 %17)
%19 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.5, i64 0, i64 0), i32 %18)
%20 = load i32, i32* %1
%21 = load i32, i32* %2
%22 = call i32 @divide(i32 %20, i32 %21)
%23 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.6, i64 0, i64 0), i32 %22)
ret i32 0
}