#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 */
const char *get_region_name_UA(int region_code) {
  switch (region_code) {
  case 1:
    return "Cherkas'ka Oblast'";
  case 2:
    return "Chernihivs'ka Oblast'";
  case 3:
    return "Chernivets'ka Oblast'";
  case 4:
    return "Dnipropetrovs'ka Oblast'";
  case 5:
    return "Donets'ka Oblast'";
  case 6:
    return "Ivano-Frankivs'ka Oblast'";
  case 7:
    return "Kharkivs'ka Oblast'";
  case 8:
    return "Khersons'ka Oblast'";
  case 9:
    return "Khmel'nyts'ka Oblast'";
  case 10:
    return "Kirovohrads'ka Oblast'";
  case 11:
    return "Krym";
  case 12:
    return "Kyyiv";
  case 13:
    return "Kyyivs'ka Oblast'";
  case 14:
    return "Luhans'ka Oblast'";
  case 15:
    return "L'vivs'ka Oblast'";
  case 16:
    return "Mykolayivs'ka Oblast'";
  case 17:
    return "Odes'ka Oblast'";
  case 18:
    return "Poltavs'ka Oblast'";
  case 19:
    return "Rivnens'ka Oblast'";
  case 20:
    return "Sevastopol'";
  case 21:
    return "Sums'ka Oblast'";
  case 22:
    return "Ternopil's'ka Oblast'";
  case 23:
    return "Vinnyts'ka Oblast'";
  case 24:
    return "Volyns'ka Oblast'";
  case 25:
    return "Zakarpats'ka Oblast'";
  case 26:
    return "Zaporiz'ka Oblast'";
  case 27:
    return "Zhytomyrs'ka Oblast'";
  default:
    return NULL;
  }
}


x86 assembly (clang, -O0):
<get_region_name_UA>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x1a,%eax
ja     12e0 <get_region_name_UA+0x1e0>
mov    -0x18(%rbp),%rax
lea    0xed9(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xf35(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf38(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf3e(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf44(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf4d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf4f(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf59(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf5d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf61(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf67(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf6e(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf63(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf59(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf5b(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf5d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf5f(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf65(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf65(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf68(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf6b(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf67(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf67(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf6d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf70(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf72(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf77(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
lea    0xf7a(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_UA+0x1e8>
movq   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<get_region_name_UA>:
add    $0xffffffff,%edi
cmp    $0x1a,%edi
ja     111a <get_region_name_UA+0x1a>
movslq %edi,%rax
lea    0x10ea(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
xor    %eax,%eax
ret

LLVM IR (-O0):
@.str = [19 x i8] c"Cherkas'ka Oblast'\00"
@.str.1 = [22 x i8] c"Chernihivs'ka Oblast'\00"
@.str.2 = [22 x i8] c"Chernivets'ka Oblast'\00"
@.str.3 = [25 x i8] c"Dnipropetrovs'ka Oblast'\00"
@.str.4 = [18 x i8] c"Donets'ka Oblast'\00"
@.str.5 = [26 x i8] c"Ivano-Frankivs'ka Oblast'\00"
@.str.6 = [20 x i8] c"Kharkivs'ka Oblast'\00"
@.str.7 = [20 x i8] c"Khersons'ka Oblast'\00"
@.str.8 = [22 x i8] c"Khmel'nyts'ka Oblast'\00"
@.str.9 = [23 x i8] c"Kirovohrads'ka Oblast'\00"
@.str.10 = [5 x i8] c"Krym\00"
@.str.11 = [6 x i8] c"Kyyiv\00"
@.str.12 = [18 x i8] c"Kyyivs'ka Oblast'\00"
@.str.13 = [18 x i8] c"Luhans'ka Oblast'\00"
@.str.14 = [18 x i8] c"L'vivs'ka Oblast'\00"
@.str.15 = [22 x i8] c"Mykolayivs'ka Oblast'\00"
@.str.16 = [16 x i8] c"Odes'ka Oblast'\00"
@.str.17 = [19 x i8] c"Poltavs'ka Oblast'\00"
@.str.18 = [19 x i8] c"Rivnens'ka Oblast'\00"
@.str.19 = [12 x i8] c"Sevastopol'\00"
@.str.20 = [16 x i8] c"Sums'ka Oblast'\00"
@.str.21 = [22 x i8] c"Ternopil's'ka Oblast'\00"
@.str.22 = [19 x i8] c"Vinnyts'ka Oblast'\00"
@.str.23 = [18 x i8] c"Volyns'ka Oblast'\00"
@.str.24 = [21 x i8] c"Zakarpats'ka Oblast'\00"
@.str.25 = [19 x i8] c"Zaporiz'ka Oblast'\00"
@.str.26 = [21 x i8] c"Zhytomyrs'ka Oblast'\00"
define i8* @get_region_name_UA(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %32 [
i32 1, label %5
i32 2, label %6
i32 3, label %7
i32 4, label %8
i32 5, label %9
i32 6, label %10
i32 7, label %11
i32 8, label %12
i32 9, label %13
i32 10, label %14
i32 11, label %15
i32 12, label %16
i32 13, label %17
i32 14, label %18
i32 15, label %19
i32 16, label %20
i32 17, label %21
i32 18, label %22
i32 19, label %23
i32 20, label %24
i32 21, label %25
i32 22, label %26
i32 23, label %27
i32 24, label %28
i32 25, label %29
i32 26, label %30
i32 27, label %31
]
5: ; preds = %1
store i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0), i8** %2
br label %33
6: ; preds = %1
store i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %33
7: ; preds = %1
store i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %33
8: ; preds = %1
store i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %33
9: ; preds = %1
store i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %33
10: ; preds = %1
store i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %33
11: ; preds = %1
store i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %33
12: ; preds = %1
store i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %33
13: ; preds = %1
store i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.8, i64 0, i64 0), i8** %2
br label %33
14: ; preds = %1
store i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.9, i64 0, i64 0), i8** %2
br label %33
15: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.10, i64 0, i64 0), i8** %2
br label %33
16: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.11, i64 0, i64 0), i8** %2
br label %33
17: ; preds = %1
store i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.12, i64 0, i64 0), i8** %2
br label %33
18: ; preds = %1
store i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.13, i64 0, i64 0), i8** %2
br label %33
19: ; preds = %1
store i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.14, i64 0, i64 0), i8** %2
br label %33
20: ; preds = %1
store i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.15, i64 0, i64 0), i8** %2
br label %33
21: ; preds = %1
store i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.16, i64 0, i64 0), i8** %2
br label %33
22: ; preds = %1
store i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.17, i64 0, i64 0), i8** %2
br label %33
23: ; preds = %1
store i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.18, i64 0, i64 0), i8** %2
br label %33
24: ; preds = %1
store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.19, i64 0, i64 0), i8** %2
br label %33
25: ; preds = %1
store i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.20, i64 0, i64 0), i8** %2
br label %33
26: ; preds = %1
store i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.21, i64 0, i64 0), i8** %2
br label %33
27: ; preds = %1
store i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.22, i64 0, i64 0), i8** %2
br label %33
28: ; preds = %1
store i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.23, i64 0, i64 0), i8** %2
br label %33
29: ; preds = %1
store i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.24, i64 0, i64 0), i8** %2
br label %33
30: ; preds = %1
store i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.25, i64 0, i64 0), i8** %2
br label %33
31: ; preds = %1
store i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.26, i64 0, i64 0), i8** %2
br label %33
32: ; preds = %1
store i8* null, i8** %2
br label %33
33: ; preds = %32, %31, %30, %29, %28, %27, %26, %25, %24, %23, %22, %21, %20, %19, %18, %17, %16, %15, %14, %13, %12, %11, %10, %9, %8, %7, %6, %5
%34 = load i8*, i8** %2
ret i8* %34
}

LLVM IR (-O2):
@.str = [19 x i8] c"Cherkas'ka Oblast'\00"
@.str.1 = [22 x i8] c"Chernihivs'ka Oblast'\00"
@.str.2 = [22 x i8] c"Chernivets'ka Oblast'\00"
@.str.3 = [25 x i8] c"Dnipropetrovs'ka Oblast'\00"
@.str.4 = [18 x i8] c"Donets'ka Oblast'\00"
@.str.5 = [26 x i8] c"Ivano-Frankivs'ka Oblast'\00"
@.str.6 = [20 x i8] c"Kharkivs'ka Oblast'\00"
@.str.7 = [20 x i8] c"Khersons'ka Oblast'\00"
@.str.8 = [22 x i8] c"Khmel'nyts'ka Oblast'\00"
@.str.9 = [23 x i8] c"Kirovohrads'ka Oblast'\00"
@.str.10 = [5 x i8] c"Krym\00"
@.str.11 = [6 x i8] c"Kyyiv\00"
@.str.12 = [18 x i8] c"Kyyivs'ka Oblast'\00"
@.str.13 = [18 x i8] c"Luhans'ka Oblast'\00"
@.str.14 = [18 x i8] c"L'vivs'ka Oblast'\00"
@.str.15 = [22 x i8] c"Mykolayivs'ka Oblast'\00"
@.str.16 = [16 x i8] c"Odes'ka Oblast'\00"
@.str.17 = [19 x i8] c"Poltavs'ka Oblast'\00"
@.str.18 = [19 x i8] c"Rivnens'ka Oblast'\00"
@.str.19 = [12 x i8] c"Sevastopol'\00"
@.str.20 = [16 x i8] c"Sums'ka Oblast'\00"
@.str.21 = [22 x i8] c"Ternopil's'ka Oblast'\00"
@.str.22 = [19 x i8] c"Vinnyts'ka Oblast'\00"
@.str.23 = [18 x i8] c"Volyns'ka Oblast'\00"
@.str.24 = [21 x i8] c"Zakarpats'ka Oblast'\00"
@.str.25 = [19 x i8] c"Zaporiz'ka Oblast'\00"
@.str.26 = [21 x i8] c"Zhytomyrs'ka Oblast'\00"
@reltable.get_region_name_UA = [27 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([19 x i8]* @.str to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([22 x i8]* @.str.1 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([22 x i8]* @.str.2 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([25 x i8]* @.str.3 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([18 x i8]* @.str.4 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([26 x i8]* @.str.5 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([20 x i8]* @.str.6 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([20 x i8]* @.str.7 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([22 x i8]* @.str.8 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([23 x i8]* @.str.9 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.10 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.11 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([18 x i8]* @.str.12 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([18 x i8]* @.str.13 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([18 x i8]* @.str.14 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([22 x i8]* @.str.15 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([16 x i8]* @.str.16 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([19 x i8]* @.str.17 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([19 x i8]* @.str.18 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([12 x i8]* @.str.19 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([16 x i8]* @.str.20 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([22 x i8]* @.str.21 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([19 x i8]* @.str.22 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([18 x i8]* @.str.23 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([21 x i8]* @.str.24 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([19 x i8]* @.str.25 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([21 x i8]* @.str.26 to i64), i64 ptrtoint ([27 x i32]* @reltable.get_region_name_UA to i64)) to i32)]
define i8* @get_region_name_UA(i32 %0) {
%2 = add i32 %0, -1
%3 = icmp ult i32 %2, 27
br i1 %3, label %4, label %8
4: ; preds = %1
%5 = sext i32 %2 to i64
%6 = shl i64 %5, 2
%7 = call i8* @llvm.load.relative.i64(i8* bitcast ([27 x i32]* @reltable.get_region_name_UA to i8*), i64 %6)
br label %8
8: ; preds = %1, %4
%9 = phi i8* [ %7, %4 ], [ null, %1 ]
ret i8* %9
}