#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*/ kill();
int /*<<< orphan*/ printf(char *, int);
int /*<<< orphan*/ scanf(char *, int *, ...);
int main() {
  int a, b, c, d;
  scanf("%d", &a);
  scanf("%d", &b);
  printf("a+b=%d\n", a + b);
  scanf("%d %d", &c, &d);
  printf("c*d=%d\n", c * d);
  kill();
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xec5(%rip),%rdi
lea    -0x8(%rbp),%rsi
mov    $0x0,%al
call   1050 <scanf@plt>
lea    0xeb3(%rip),%rdi
lea    -0xc(%rbp),%rsi
mov    $0x0,%al
call   1050 <scanf@plt>
mov    -0x8(%rbp),%esi
add    -0xc(%rbp),%esi
lea    0xe90(%rip),%rdi
call   1030 <printf@plt>
lea    0xe8c(%rip),%rdi
lea    -0x10(%rbp),%rsi
lea    -0x14(%rbp),%rdx
mov    $0x0,%al
call   1050 <scanf@plt>
mov    -0x10(%rbp),%esi
imul   -0x14(%rbp),%esi
lea    0xe75(%rip),%rdi
call   1030 <printf@plt>
mov    $0x0,%al
call   1040 <kill@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xecf(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <scanf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <scanf@plt>
mov    0x8(%rsp),%esi
add    0xc(%rsp),%esi
lea    0xe97(%rip),%rdi
call   1030 <printf@plt>
lea    0xe93(%rip),%rdi
lea    0x4(%rsp),%rsi
mov    %rsp,%rdx
xor    %eax,%eax
call   1050 <scanf@plt>
mov    (%rsp),%esi
imul   0x4(%rsp),%esi
lea    0xe7b(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <kill@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
@.str.1 = [8 x i8] c"a+b=%d\0A\00"
@.str.2 = [6 x i8] c"%d %d\00"
@.str.3 = [8 x i8] c"c*d=%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
store i32 0, i32* %1
%6 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
%7 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %3)
%8 = load i32, i32* %2
%9 = load i32, i32* %3
%10 = add nsw i32 %8, %9
%11 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0), i32 %10)
%12 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i32* %4, i32* %5)
%13 = load i32, i32* %4
%14 = load i32, i32* %5
%15 = mul nsw i32 %13, %14
%16 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0), i32 %15)
%17 = call i32 (...) @kill()
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [8 x i8] c"a+b=%d\0A\00"
@.str.2 = [6 x i8] c"%d %d\00"
@.str.3 = [8 x i8] c"c*d=%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = bitcast i32* %1 to i8*
%6 = bitcast i32* %2 to i8*
%7 = bitcast i32* %3 to i8*
%8 = bitcast i32* %4 to i8*
%9 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%10 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
%11 = load i32, i32* %1
%12 = load i32, i32* %2
%13 = add nsw i32 %12, %11
%14 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0), i32 %13)
%15 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i32* %3, i32* %4)
%16 = load i32, i32* %3
%17 = load i32, i32* %4
%18 = mul nsw i32 %17, %16
%19 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0), i32 %18)
%20 = call i32 (...) @kill()
ret i32 0
}