#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_BR(int region_code) {
  switch (region_code) {
  case 1:
    return "Acre";
  case 2:
    return "Alagoas";
  case 3:
    return "Amapa";
  case 4:
    return "Amazonas";
  case 5:
    return "Bahia";
  case 6:
    return "Ceara";
  case 7:
    return "Distrito Federal";
  case 8:
    return "Espirito Santo";
  case 11:
    return "Mato Grosso do Sul";
  case 13:
    return "Maranhao";
  case 14:
    return "Mato Grosso";
  case 15:
    return "Minas Gerais";
  case 16:
    return "Para";
  case 17:
    return "Paraiba";
  case 18:
    return "Parana";
  case 20:
    return "Piaui";
  case 21:
    return "Rio de Janeiro";
  case 22:
    return "Rio Grande do Norte";
  case 23:
    return "Rio Grande do Sul";
  case 24:
    return "Rondonia";
  case 25:
    return "Roraima";
  case 26:
    return "Santa Catarina";
  case 27:
    return "Sao Paulo";
  case 28:
    return "Sergipe";
  case 29:
    return "Goias";
  case 30:
    return "Pernambuco";
  case 31:
    return "Tocantins";
  default:
    return NULL;
  }
}


x86 assembly (clang, -O0):
<get_region_name_BR>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x1e,%eax
ja     12e0 <get_region_name_BR+0x1e0>
mov    -0x18(%rbp),%rax
lea    0xed9(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xf45(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf3a(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf32(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf28(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf21(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf17(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf0d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf0e(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf0d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf10(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf09(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf05(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xf02(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xef7(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xeef(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xee6(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xedc(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xedb(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xedf(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xee1(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xeda(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xed2(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xed1(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xecb(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xec3(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xeb9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
lea    0xeb4(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12e8 <get_region_name_BR+0x1e8>
movq   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<get_region_name_BR>:
add    $0xffffffff,%edi
cmp    $0x1e,%edi
ja     1117 <get_region_name_BR+0x17>
movslq %edi,%rax
lea    0x2c46(%rip),%rcx
mov    (%rcx,%rax,8),%rax
ret
xor    %eax,%eax
ret

LLVM IR (-O0):
@.str = [5 x i8] c"Acre\00"
@.str.1 = [8 x i8] c"Alagoas\00"
@.str.2 = [6 x i8] c"Amapa\00"
@.str.3 = [9 x i8] c"Amazonas\00"
@.str.4 = [6 x i8] c"Bahia\00"
@.str.5 = [6 x i8] c"Ceara\00"
@.str.6 = [17 x i8] c"Distrito Federal\00"
@.str.7 = [15 x i8] c"Espirito Santo\00"
@.str.8 = [19 x i8] c"Mato Grosso do Sul\00"
@.str.9 = [9 x i8] c"Maranhao\00"
@.str.10 = [12 x i8] c"Mato Grosso\00"
@.str.11 = [13 x i8] c"Minas Gerais\00"
@.str.12 = [5 x i8] c"Para\00"
@.str.13 = [8 x i8] c"Paraiba\00"
@.str.14 = [7 x i8] c"Parana\00"
@.str.15 = [6 x i8] c"Piaui\00"
@.str.16 = [15 x i8] c"Rio de Janeiro\00"
@.str.17 = [20 x i8] c"Rio Grande do Norte\00"
@.str.18 = [18 x i8] c"Rio Grande do Sul\00"
@.str.19 = [9 x i8] c"Rondonia\00"
@.str.20 = [8 x i8] c"Roraima\00"
@.str.21 = [15 x i8] c"Santa Catarina\00"
@.str.22 = [10 x i8] c"Sao Paulo\00"
@.str.23 = [8 x i8] c"Sergipe\00"
@.str.24 = [6 x i8] c"Goias\00"
@.str.25 = [11 x i8] c"Pernambuco\00"
@.str.26 = [10 x i8] c"Tocantins\00"
define i8* @get_region_name_BR(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 11, label %13
i32 13, label %14
i32 14, label %15
i32 15, label %16
i32 16, label %17
i32 17, label %18
i32 18, label %19
i32 20, label %20
i32 21, label %21
i32 22, label %22
i32 23, label %23
i32 24, label %24
i32 25, label %25
i32 26, label %26
i32 27, label %27
i32 28, label %28
i32 29, label %29
i32 30, label %30
i32 31, label %31
]
5: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i8** %2
br label %33
6: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %33
7: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %33
8: ; preds = %1
store i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %33
9: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %33
10: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %33
11: ; preds = %1
store i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %33
12: ; preds = %1
store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %33
13: ; preds = %1
store i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.8, i64 0, i64 0), i8** %2
br label %33
14: ; preds = %1
store i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.9, i64 0, i64 0), i8** %2
br label %33
15: ; preds = %1
store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.10, i64 0, i64 0), i8** %2
br label %33
16: ; preds = %1
store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.11, i64 0, i64 0), i8** %2
br label %33
17: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.12, i64 0, i64 0), i8** %2
br label %33
18: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.13, i64 0, i64 0), i8** %2
br label %33
19: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.14, i64 0, i64 0), i8** %2
br label %33
20: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.15, i64 0, i64 0), i8** %2
br label %33
21: ; preds = %1
store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.16, i64 0, i64 0), i8** %2
br label %33
22: ; preds = %1
store i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.17, i64 0, i64 0), i8** %2
br label %33
23: ; preds = %1
store i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.18, i64 0, i64 0), i8** %2
br label %33
24: ; preds = %1
store i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.19, i64 0, i64 0), i8** %2
br label %33
25: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.20, i64 0, i64 0), i8** %2
br label %33
26: ; preds = %1
store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.21, i64 0, i64 0), i8** %2
br label %33
27: ; preds = %1
store i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.22, i64 0, i64 0), i8** %2
br label %33
28: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.23, i64 0, i64 0), i8** %2
br label %33
29: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.24, i64 0, i64 0), i8** %2
br label %33
30: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.25, i64 0, i64 0), i8** %2
br label %33
31: ; preds = %1
store i8* getelementptr inbounds ([10 x i8], [10 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 = [5 x i8] c"Acre\00"
@.str.1 = [8 x i8] c"Alagoas\00"
@.str.2 = [6 x i8] c"Amapa\00"
@.str.3 = [9 x i8] c"Amazonas\00"
@.str.4 = [6 x i8] c"Bahia\00"
@.str.5 = [6 x i8] c"Ceara\00"
@.str.6 = [17 x i8] c"Distrito Federal\00"
@.str.7 = [15 x i8] c"Espirito Santo\00"
@.str.8 = [19 x i8] c"Mato Grosso do Sul\00"
@.str.9 = [9 x i8] c"Maranhao\00"
@.str.10 = [12 x i8] c"Mato Grosso\00"
@.str.11 = [13 x i8] c"Minas Gerais\00"
@.str.12 = [5 x i8] c"Para\00"
@.str.13 = [8 x i8] c"Paraiba\00"
@.str.14 = [7 x i8] c"Parana\00"
@.str.15 = [6 x i8] c"Piaui\00"
@.str.16 = [15 x i8] c"Rio de Janeiro\00"
@.str.17 = [20 x i8] c"Rio Grande do Norte\00"
@.str.18 = [18 x i8] c"Rio Grande do Sul\00"
@.str.19 = [9 x i8] c"Rondonia\00"
@.str.20 = [8 x i8] c"Roraima\00"
@.str.21 = [15 x i8] c"Santa Catarina\00"
@.str.22 = [10 x i8] c"Sao Paulo\00"
@.str.23 = [8 x i8] c"Sergipe\00"
@.str.24 = [6 x i8] c"Goias\00"
@.str.25 = [11 x i8] c"Pernambuco\00"
@.str.26 = [10 x i8] c"Tocantins\00"
@switch.table.get_region_name_BR = [31 x i8*] [i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 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 ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.5, i64 0, i64 0), i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.6, i64 0, i64 0), i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.7, i64 0, i64 0), i8* null, i8* null, i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.8, i64 0, i64 0), i8* null, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.9, i64 0, i64 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.10, i64 0, i64 0), i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.11, i64 0, i64 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.12, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.13, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.14, i64 0, i64 0), i8* null, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.15, i64 0, i64 0), i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.16, i64 0, i64 0), i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.17, i64 0, i64 0), i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.18, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.19, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.20, i64 0, i64 0), i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.21, i64 0, i64 0), i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.22, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.23, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.24, i64 0, i64 0), i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.25, i64 0, i64 0), i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.26, i64 0, i64 0)]
define i8* @get_region_name_BR(i32 %0) {
%2 = add i32 %0, -1
%3 = icmp ult i32 %2, 31
br i1 %3, label %4, label %8
4: ; preds = %1
%5 = sext i32 %2 to i64
%6 = getelementptr inbounds [31 x i8*], [31 x i8*]* @switch.table.get_region_name_BR, 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
}