#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_PT(int region_code) {
  switch (region_code) {
  case 2:
    return "Aveiro";
  case 3:
    return "Beja";
  case 4:
    return "Braga";
  case 5:
    return "Braganca";
  case 6:
    return "Castelo Branco";
  case 7:
    return "Coimbra";
  case 8:
    return "Evora";
  case 9:
    return "Faro";
  case 10:
    return "Madeira";
  case 11:
    return "Guarda";
  case 13:
    return "Leiria";
  case 14:
    return "Lisboa";
  case 16:
    return "Portalegre";
  case 17:
    return "Porto";
  case 18:
    return "Santarem";
  case 19:
    return "Setubal";
  case 20:
    return "Viana do Castelo";
  case 21:
    return "Vila Real";
  case 22:
    return "Viseu";
  case 23:
    return "Azores";
  default:
    return NULL;
  }
}


x86 assembly (clang, -O0):
<get_region_name_PT>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xfffffffe,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x15,%eax
ja     1270 <get_region_name_PT+0x170>
mov    -0x18(%rbp),%rax
lea    0xed9(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xf21(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xf18(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xf0d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xf03(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xefc(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xefb(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xef3(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xee9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xede(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xed6(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xecd(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xec4(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xebb(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xeb6(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xeac(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xea5(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xe9d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xe9e(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xe98(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
lea    0xe8e(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1278 <get_region_name_PT+0x178>
movq   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<get_region_name_PT>:
add    $0xfffffffe,%edi
cmp    $0x15,%edi
ja     1117 <get_region_name_PT+0x17>
movslq %edi,%rax
lea    0x2c8e(%rip),%rcx
mov    (%rcx,%rax,8),%rax
ret
xor    %eax,%eax
ret

LLVM IR (-O0):
@.str = [7 x i8] c"Aveiro\00"
@.str.1 = [5 x i8] c"Beja\00"
@.str.2 = [6 x i8] c"Braga\00"
@.str.3 = [9 x i8] c"Braganca\00"
@.str.4 = [15 x i8] c"Castelo Branco\00"
@.str.5 = [8 x i8] c"Coimbra\00"
@.str.6 = [6 x i8] c"Evora\00"
@.str.7 = [5 x i8] c"Faro\00"
@.str.8 = [8 x i8] c"Madeira\00"
@.str.9 = [7 x i8] c"Guarda\00"
@.str.10 = [7 x i8] c"Leiria\00"
@.str.11 = [7 x i8] c"Lisboa\00"
@.str.12 = [11 x i8] c"Portalegre\00"
@.str.13 = [6 x i8] c"Porto\00"
@.str.14 = [9 x i8] c"Santarem\00"
@.str.15 = [8 x i8] c"Setubal\00"
@.str.16 = [17 x i8] c"Viana do Castelo\00"
@.str.17 = [10 x i8] c"Vila Real\00"
@.str.18 = [6 x i8] c"Viseu\00"
@.str.19 = [7 x i8] c"Azores\00"
define i8* @get_region_name_PT(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %25 [
i32 2, label %5
i32 3, label %6
i32 4, label %7
i32 5, label %8
i32 6, label %9
i32 7, label %10
i32 8, label %11
i32 9, label %12
i32 10, label %13
i32 11, label %14
i32 13, label %15
i32 14, label %16
i32 16, label %17
i32 17, label %18
i32 18, label %19
i32 19, label %20
i32 20, label %21
i32 21, label %22
i32 22, label %23
i32 23, label %24
]
5: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i8** %2
br label %26
6: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %26
7: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %26
8: ; preds = %1
store i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %26
9: ; preds = %1
store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %26
10: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %26
11: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %26
12: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %26
13: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.8, i64 0, i64 0), i8** %2
br label %26
14: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.9, i64 0, i64 0), i8** %2
br label %26
15: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.10, i64 0, i64 0), i8** %2
br label %26
16: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.11, i64 0, i64 0), i8** %2
br label %26
17: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.12, i64 0, i64 0), i8** %2
br label %26
18: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.13, i64 0, i64 0), i8** %2
br label %26
19: ; preds = %1
store i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.14, i64 0, i64 0), i8** %2
br label %26
20: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.15, i64 0, i64 0), i8** %2
br label %26
21: ; preds = %1
store i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.16, i64 0, i64 0), i8** %2
br label %26
22: ; preds = %1
store i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.17, i64 0, i64 0), i8** %2
br label %26
23: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.18, i64 0, i64 0), i8** %2
br label %26
24: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.19, i64 0, i64 0), i8** %2
br label %26
25: ; preds = %1
store i8* null, i8** %2
br label %26
26: ; preds = %25, %24, %23, %22, %21, %20, %19, %18, %17, %16, %15, %14, %13, %12, %11, %10, %9, %8, %7, %6, %5
%27 = load i8*, i8** %2
ret i8* %27
}

LLVM IR (-O2):
@.str = [7 x i8] c"Aveiro\00"
@.str.1 = [5 x i8] c"Beja\00"
@.str.2 = [6 x i8] c"Braga\00"
@.str.3 = [9 x i8] c"Braganca\00"
@.str.4 = [15 x i8] c"Castelo Branco\00"
@.str.5 = [8 x i8] c"Coimbra\00"
@.str.6 = [6 x i8] c"Evora\00"
@.str.7 = [5 x i8] c"Faro\00"
@.str.8 = [8 x i8] c"Madeira\00"
@.str.9 = [7 x i8] c"Guarda\00"
@.str.10 = [7 x i8] c"Leiria\00"
@.str.11 = [7 x i8] c"Lisboa\00"
@.str.12 = [11 x i8] c"Portalegre\00"
@.str.13 = [6 x i8] c"Porto\00"
@.str.14 = [9 x i8] c"Santarem\00"
@.str.15 = [8 x i8] c"Setubal\00"
@.str.16 = [17 x i8] c"Viana do Castelo\00"
@.str.17 = [10 x i8] c"Vila Real\00"
@.str.18 = [6 x i8] c"Viseu\00"
@.str.19 = [7 x i8] c"Azores\00"
@switch.table.get_region_name_PT = [22 x i8*] [i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.4, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.5, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.6, i64 0, i64 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.7, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.8, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.9, i64 0, i64 0), i8* null, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.10, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.11, i64 0, i64 0), i8* null, i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.12, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.13, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.14, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.15, i64 0, i64 0), i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.16, i64 0, i64 0), i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.17, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.18, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.19, i64 0, i64 0)]
define i8* @get_region_name_PT(i32 %0) {
%2 = add i32 %0, -2
%3 = icmp ult i32 %2, 22
br i1 %3, label %4, label %8
4: ; preds = %1
%5 = sext i32 %2 to i64
%6 = getelementptr inbounds [22 x i8*], [22 x i8*]* @switch.table.get_region_name_PT, i64 0, i64 %5
%7 = load i8*, i8** %6
br label %8
8: ; preds = %1, %4
%9 = phi i8* [ %7, %4 ], [ null, %1 ]
ret i8* %9
}