#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 *, ...);
int main(int argc, char *argv[]) {
  int n1, n2;
  printf("Enter one number: ");
  scanf("%d", &n1);
  printf("n1=%d\n", n1);
  printf("Enter two numbers: ");
  scanf("%d%d", &n1, &n2);
  printf("n1=%d\nn2=%d\n", n1, n2);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xec3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee5(%rip),%rdi
lea    -0x14(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
mov    -0x14(%rbp),%esi
lea    0xeb3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeac(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb2(%rip),%rdi
lea    -0x14(%rbp),%rsi
lea    -0x18(%rbp),%rdx
mov    $0x0,%al
call   1040 <scanf@plt>
mov    -0x14(%rbp),%esi
mov    -0x18(%rbp),%edx
lea    0xe9b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xef6(%rip),%rdi
lea    0x8(%rsp),%rbx
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <scanf@plt>
mov    0x8(%rsp),%esi
lea    0xebf(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xeb8(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xebe(%rip),%rdi
lea    0xc(%rsp),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <scanf@plt>
mov    0x8(%rsp),%esi
mov    0xc(%rsp),%edx
lea    0xea5(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [19 x i8] c"Enter one number: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [7 x i8] c"n1=%d\0A\00"
@.str.3 = [20 x i8] c"Enter two numbers: \00"
@.str.4 = [5 x i8] c"%d%d\00"
@.str.5 = [13 x i8] c"n1=%d\0An2=%d\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0))
%9 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %6)
%10 = load i32, i32* %6
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.2, i64 0, i64 0), i32 %10)
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0))
%13 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0), i32* %6, i32* %7)
%14 = load i32, i32* %6
%15 = load i32, i32* %7
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.5, i64 0, i64 0), i32 %14, i32 %15)
ret i32 0
}

LLVM IR (-O2):
@.str = [19 x i8] c"Enter one number: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [7 x i8] c"n1=%d\0A\00"
@.str.3 = [20 x i8] c"Enter two numbers: \00"
@.str.4 = [5 x i8] c"%d%d\00"
@.str.5 = [13 x i8] c"n1=%d\0An2=%d\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca i32
%4 = alloca i32
%5 = bitcast i32* %3 to i8*
%6 = bitcast i32* %4 to i8*
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0))
%8 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %3)
%9 = load i32, i32* %3
%10 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str.2, i64 0, i64 0), i32 %9)
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0))
%12 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0), i32* %3, i32* %4)
%13 = load i32, i32* %3
%14 = load i32, i32* %4
%15 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.5, i64 0, i64 0), i32 %13, i32 %14)
ret i32 0
}