#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() {
  printf("1. 개\n2. 고양이\n3. 병아리\n영어로 알고 싶은 번호를 입력하세요. ");
  int i;
  scanf("%d", &i);
  switch (i) {
  default:
    printf("I don't know.");
    break;
  case 1:
    printf("dog");
    break;
  case 2:
    printf("cat");
    break;
  case 3:
    printf("chick");
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
call   1030 <printf@plt>
lea    0xf13(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    %eax,-0xc(%rbp)
sub    $0x1,%eax
je     1192 <main+0x72>
jmp    115f <main+0x3f>
mov    -0xc(%rbp),%eax
sub    $0x2,%eax
je     11a3 <main+0x83>
jmp    1170 <main+0x50>
mov    -0xc(%rbp),%eax
sub    $0x3,%eax
je     11b4 <main+0x94>
jmp    1181 <main+0x61>
lea    0xed0(%rip),%rdi
call   1030 <printf@plt>
jmp    11c0 <main+0xa0>
lea    0xecd(%rip),%rdi
call   1030 <printf@plt>
jmp    11c0 <main+0xa0>
lea    0xec0(%rip),%rdi
call   1030 <printf@plt>
jmp    11c0 <main+0xa0>
lea    0xeb3(%rip),%rdi
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed8(%rip),%rdi
call   1030 <printf@plt>
lea    0xf21(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%eax
add    $0xffffffff,%eax
cmp    $0x2,%eax
ja     115c <main+0x3c>
cltq
lea    0xf21(%rip),%rcx
movslq (%rcx,%rax,4),%rdi
add    %rcx,%rdi
jmp    1163 <main+0x43>
lea    0xef5(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [85 x i8] c"1. \EA\B0\9C\0A2. \EA\B3\A0\EC\96\91\EC\9D\B4\0A3. \EB\B3\91\EC\95\84\EB\A6\AC\0A\EC\98\81\EC\96\B4\EB\A1\9C \EC\95\8C\EA\B3\A0 \EC\8B\B6\EC\9D\80 \EB\B2\88\ED\98\B8\EB\A5\BC \EC\9E\85\EB\A0\A5\ED\95\98\EC\84\B8\EC\9A\94. \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [14 x i8] c"I don't know.\00"
@.str.3 = [4 x i8] c"dog\00"
@.str.4 = [4 x i8] c"cat\00"
@.str.5 = [6 x i8] c"chick\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 @printf(i8* getelementptr inbounds ([85 x i8], [85 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%5 = load i32, i32* %2
switch i32 %5, label %6 [
i32 1, label %8
i32 2, label %10
i32 3, label %12
]
6: ; preds = %0
%7 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0))
br label %14
8: ; preds = %0
%9 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
br label %14
10: ; preds = %0
%11 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0))
br label %14
12: ; preds = %0
%13 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.5, i64 0, i64 0))
br label %14
14: ; preds = %12, %10, %8, %6
%15 = load i32, i32* %1
ret i32 %15
}

LLVM IR (-O2):
@.str = [85 x i8] c"1. \EA\B0\9C\0A2. \EA\B3\A0\EC\96\91\EC\9D\B4\0A3. \EB\B3\91\EC\95\84\EB\A6\AC\0A\EC\98\81\EC\96\B4\EB\A1\9C \EC\95\8C\EA\B3\A0 \EC\8B\B6\EC\9D\80 \EB\B2\88\ED\98\B8\EB\A5\BC \EC\9E\85\EB\A0\A5\ED\95\98\EC\84\B8\EC\9A\94. \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [14 x i8] c"I don't know.\00"
@.str.3 = [4 x i8] c"dog\00"
@.str.4 = [4 x i8] c"cat\00"
@.str.5 = [6 x i8] c"chick\00"
@reltable.main = [3 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.3 to i64), i64 ptrtoint ([3 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.4 to i64), i64 ptrtoint ([3 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.5 to i64), i64 ptrtoint ([3 x i32]* @reltable.main to i64)) to i32)]
define i32 @main() {
%1 = alloca i32
%2 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([85 x i8], [85 x i8]* @.str, i64 0, i64 0))
%3 = bitcast i32* %1 to i8*
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%5 = load i32, i32* %1
%6 = add i32 %5, -1
%7 = icmp ult i32 %6, 3
br i1 %7, label %8, label %12
8: ; preds = %0
%9 = sext i32 %6 to i64
%10 = shl i64 %9, 2
%11 = call i8* @llvm.load.relative.i64(i8* bitcast ([3 x i32]* @reltable.main to i8*), i64 %10)
br label %12
12: ; preds = %8, %0
%13 = phi i8* [ getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), %0 ], [ %11, %8 ]
%14 = call i32 @printf(i8* dereferenceable(1) %13)
ret i32 0
}