#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*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *, char *, int *);
int main() {
  int data1, data2;
  char op;
  printf("Please enter the expression data1 + data2\n");
  scanf("%d%c%d", &data1, &op, &data2);
  printf("data1 : %d\n", data1);
  printf("data2 : %d\n", data2);
  printf("%d%c%d", data1, op, data2);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xed1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeee(%rip),%rdi
lea    -0x4(%rbp),%rsi
lea    -0x9(%rbp),%rdx
lea    -0x8(%rbp),%rcx
call   1040 <scanf@plt>
mov    -0x4(%rbp),%esi
lea    0xeda(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
lea    0xed5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%esi
movsbl -0x9(%rbp),%edx
mov    -0x8(%rbp),%ecx
lea    0xeaa(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xee3(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb8(%rip),%rbx
lea    0xc(%rsp),%rsi
lea    0x7(%rsp),%rdx
lea    0x8(%rsp),%rcx
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    0xc(%rsp),%esi
lea    0xe9d(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x8(%rsp),%esi
lea    0xe97(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
movsbl 0x7(%rsp),%edx
mov    0x8(%rsp),%ecx
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [43 x i8] c"Please enter the expression data1 + data2\0A\00"
@.str.1 = [7 x i8] c"%d%c%d\00"
@.str.2 = [12 x i8] c"data1 : %d\0A\00"
@.str.3 = [12 x i8] c"data2 : %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i8
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([43 x i8], [43 x i8]* @.str, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32* %1, i8* %3, i32* %2)
%6 = load i32, i32* %1
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.2, i64 0, i64 0), i32 %6)
%8 = load i32, i32* %2
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.3, i64 0, i64 0), i32 %8)
%10 = load i32, i32* %1
%11 = load i8, i8* %3
%12 = sext i8 %11 to i32
%13 = load i32, i32* %2
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32 %10, i32 %12, i32 %13)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [7 x i8] c"%d%c%d\00"
@.str.2 = [12 x i8] c"data1 : %d\0A\00"
@.str.3 = [12 x i8] c"data2 : %d\0A\00"
@str = [42 x i8] c"Please enter the expression data1 + data2\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i8
%4 = bitcast i32* %1 to i8*
%5 = bitcast i32* %2 to i8*
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([42 x i8], [42 x i8]* @str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32* %1, i8* %3, i32* %2)
%8 = load i32, i32* %1
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.2, i64 0, i64 0), i32 %8)
%10 = load i32, i32* %2
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.3, i64 0, i64 0), i32 %10)
%12 = load i32, i32* %1
%13 = load i8, i8* %3
%14 = sext i8 %13 to i32
%15 = load i32, i32* %2
%16 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32 %12, i32 %14, i32 %15)
ret i32 0
}