#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 a;
  scanf("%d", &a);
  switch (a) {
  case 0:
    printf("\n zero");
    break;
  case 1:
    printf("\n one");
    break;
  case 2:
    printf("\n two");
    break;
  case 3:
    printf("\n three");
    break;
  case 4:
    printf("\n four");
    break;
  case 5:
    printf("\n five");
    break;
  case 6:
    printf("\n six");
    break;
  case 7:
    printf("\n seven");
    break;
  case 8:
    printf("\n eight");
    break;
  case 9:
    printf("\n nine");
    break;
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xef2(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    %rax,-0x10(%rbp)
sub    $0x9,%rax
ja     1209 <main+0xe9>
mov    -0x10(%rbp),%rax
lea    0xea5(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xec0(%rip),%rdi
call   1030 <printf@plt>
jmp    1209 <main+0xe9>
lea    0xeb6(%rip),%rdi
call   1030 <printf@plt>
jmp    1209 <main+0xe9>
lea    0xeab(%rip),%rdi
call   1030 <printf@plt>
jmp    1209 <main+0xe9>
lea    0xea0(%rip),%rdi
call   1030 <printf@plt>
jmp    1209 <main+0xe9>
lea    0xe97(%rip),%rdi
call   1030 <printf@plt>
jmp    1209 <main+0xe9>
lea    0xe8d(%rip),%rdi
call   1030 <printf@plt>
jmp    1209 <main+0xe9>
lea    0xe83(%rip),%rdi
call   1030 <printf@plt>
jmp    1209 <main+0xe9>
lea    0xe78(%rip),%rdi
call   1030 <printf@plt>
jmp    1209 <main+0xe9>
lea    0xe6f(%rip),%rdi
call   1030 <printf@plt>
jmp    1209 <main+0xe9>
lea    0xe66(%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
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
movslq 0x4(%rsp),%rax
cmp    $0x9,%rax
ja     1150 <main+0x30>
lea    0xf08(%rip),%rcx
movslq (%rcx,%rax,4),%rdi
add    %rcx,%rdi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
@.str.1 = [7 x i8] c"\0A zero\00"
@.str.2 = [6 x i8] c"\0A one\00"
@.str.3 = [6 x i8] c"\0A two\00"
@.str.4 = [8 x i8] c"\0A three\00"
@.str.5 = [7 x i8] c"\0A four\00"
@.str.6 = [7 x i8] c"\0A five\00"
@.str.7 = [6 x i8] c"\0A six\00"
@.str.8 = [8 x i8] c"\0A seven\00"
@.str.9 = [8 x i8] c"\0A eight\00"
@.str.10 = [7 x i8] c"\0A nine\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
%4 = load i32, i32* %2
switch i32 %4, label %25 [
i32 0, label %5
i32 1, label %7
i32 2, label %9
i32 3, label %11
i32 4, label %13
i32 5, label %15
i32 6, label %17
i32 7, label %19
i32 8, label %21
i32 9, label %23
]
5: ; preds = %0
%6 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0))
br label %25
7: ; preds = %0
%8 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
br label %25
9: ; preds = %0
%10 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.3, i64 0, i64 0))
br label %25
11: ; preds = %0
%12 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.4, i64 0, i64 0))
br label %25
13: ; preds = %0
%14 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.5, i64 0, i64 0))
br label %25
15: ; preds = %0
%16 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.6, i64 0, i64 0))
br label %25
17: ; preds = %0
%18 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.7, i64 0, i64 0))
br label %25
19: ; preds = %0
%20 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.8, i64 0, i64 0))
br label %25
21: ; preds = %0
%22 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.9, i64 0, i64 0))
br label %25
23: ; preds = %0
%24 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.10, i64 0, i64 0))
br label %25
25: ; preds = %0, %23, %21, %19, %17, %15, %13, %11, %9, %7, %5
%26 = load i32, i32* %1
ret i32 %26
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [7 x i8] c"\0A zero\00"
@.str.2 = [6 x i8] c"\0A one\00"
@.str.3 = [6 x i8] c"\0A two\00"
@.str.4 = [8 x i8] c"\0A three\00"
@.str.5 = [7 x i8] c"\0A four\00"
@.str.6 = [7 x i8] c"\0A five\00"
@.str.7 = [6 x i8] c"\0A six\00"
@.str.8 = [8 x i8] c"\0A seven\00"
@.str.9 = [8 x i8] c"\0A eight\00"
@.str.10 = [7 x i8] c"\0A nine\00"
@reltable.main = [10 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.1 to i64), i64 ptrtoint ([10 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.2 to i64), i64 ptrtoint ([10 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.3 to i64), i64 ptrtoint ([10 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.4 to i64), i64 ptrtoint ([10 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.5 to i64), i64 ptrtoint ([10 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.6 to i64), i64 ptrtoint ([10 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.7 to i64), i64 ptrtoint ([10 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.8 to i64), i64 ptrtoint ([10 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.9 to i64), i64 ptrtoint ([10 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.10 to i64), i64 ptrtoint ([10 x i32]* @reltable.main to i64)) to i32)]
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%4 = load i32, i32* %1
%5 = icmp ult i32 %4, 10
br i1 %5, label %6, label %11
6: ; preds = %0
%7 = sext i32 %4 to i64
%8 = shl i64 %7, 2
%9 = call i8* @llvm.load.relative.i64(i8* bitcast ([10 x i32]* @reltable.main to i8*), i64 %8)
%10 = call i32 @printf(i8* dereferenceable(1) %9)
br label %11
11: ; preds = %0, %6
ret i32 0
}