#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_CU(int region_code) {
  switch (region_code) {
  case 1:
    return "Pinar del Rio";
  case 2:
    return "Ciudad de la Habana";
  case 3:
    return "Matanzas";
  case 4:
    return "Isla de la Juventud";
  case 5:
    return "Camaguey";
  case 7:
    return "Ciego de Avila";
  case 8:
    return "Cienfuegos";
  case 9:
    return "Granma";
  case 10:
    return "Guantanamo";
  case 11:
    return "La Habana";
  case 12:
    return "Holguin";
  case 13:
    return "Las Tunas";
  case 14:
    return "Sancti Spiritus";
  case 15:
    return "Santiago de Cuba";
  case 16:
    return "Villa Clara";
  default:
    return NULL;
  }
}


x86 assembly (clang, -O0):
<get_region_name_CU>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0xf,%eax
ja     1220 <get_region_name_CU+0x120>
mov    -0x18(%rbp),%rax
lea    0xed9(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xf09(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xf07(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xf0b(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xf04(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xf08(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xf01(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xf00(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xefb(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xef2(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xeed(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xee7(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xedf(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xed9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xed9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
lea    0xeda(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1228 <get_region_name_CU+0x128>
movq   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<get_region_name_CU>:
add    $0xffffffff,%edi
cmp    $0xf,%edi
ja     1117 <get_region_name_CU+0x17>
movslq %edi,%rax
lea    0x2cbe(%rip),%rcx
mov    (%rcx,%rax,8),%rax
ret
xor    %eax,%eax
ret

LLVM IR (-O0):
@.str = [14 x i8] c"Pinar del Rio\00"
@.str.1 = [20 x i8] c"Ciudad de la Habana\00"
@.str.2 = [9 x i8] c"Matanzas\00"
@.str.3 = [20 x i8] c"Isla de la Juventud\00"
@.str.4 = [9 x i8] c"Camaguey\00"
@.str.5 = [15 x i8] c"Ciego de Avila\00"
@.str.6 = [11 x i8] c"Cienfuegos\00"
@.str.7 = [7 x i8] c"Granma\00"
@.str.8 = [11 x i8] c"Guantanamo\00"
@.str.9 = [10 x i8] c"La Habana\00"
@.str.10 = [8 x i8] c"Holguin\00"
@.str.11 = [10 x i8] c"Las Tunas\00"
@.str.12 = [16 x i8] c"Sancti Spiritus\00"
@.str.13 = [17 x i8] c"Santiago de Cuba\00"
@.str.14 = [12 x i8] c"Villa Clara\00"
define i8* @get_region_name_CU(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %20 [
i32 1, label %5
i32 2, label %6
i32 3, label %7
i32 4, label %8
i32 5, label %9
i32 7, label %10
i32 8, label %11
i32 9, label %12
i32 10, label %13
i32 11, label %14
i32 12, label %15
i32 13, label %16
i32 14, label %17
i32 15, label %18
i32 16, label %19
]
5: ; preds = %1
store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0), i8** %2
br label %21
6: ; preds = %1
store i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %21
7: ; preds = %1
store i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %21
8: ; preds = %1
store i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %21
9: ; preds = %1
store i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %21
10: ; preds = %1
store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %21
11: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %21
12: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %21
13: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.8, i64 0, i64 0), i8** %2
br label %21
14: ; preds = %1
store i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.9, i64 0, i64 0), i8** %2
br label %21
15: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.10, i64 0, i64 0), i8** %2
br label %21
16: ; preds = %1
store i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.11, i64 0, i64 0), i8** %2
br label %21
17: ; preds = %1
store i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.12, i64 0, i64 0), i8** %2
br label %21
18: ; preds = %1
store i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.13, i64 0, i64 0), i8** %2
br label %21
19: ; preds = %1
store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.14, i64 0, i64 0), i8** %2
br label %21
20: ; preds = %1
store i8* null, i8** %2
br label %21
21: ; preds = %20, %19, %18, %17, %16, %15, %14, %13, %12, %11, %10, %9, %8, %7, %6, %5
%22 = load i8*, i8** %2
ret i8* %22
}

LLVM IR (-O2):
@.str = [14 x i8] c"Pinar del Rio\00"
@.str.1 = [20 x i8] c"Ciudad de la Habana\00"
@.str.2 = [9 x i8] c"Matanzas\00"
@.str.3 = [20 x i8] c"Isla de la Juventud\00"
@.str.4 = [9 x i8] c"Camaguey\00"
@.str.5 = [15 x i8] c"Ciego de Avila\00"
@.str.6 = [11 x i8] c"Cienfuegos\00"
@.str.7 = [7 x i8] c"Granma\00"
@.str.8 = [11 x i8] c"Guantanamo\00"
@.str.9 = [10 x i8] c"La Habana\00"
@.str.10 = [8 x i8] c"Holguin\00"
@.str.11 = [10 x i8] c"Las Tunas\00"
@.str.12 = [16 x i8] c"Sancti Spiritus\00"
@.str.13 = [17 x i8] c"Santiago de Cuba\00"
@.str.14 = [12 x i8] c"Villa Clara\00"
@switch.table.get_region_name_CU = [16 x i8*] [i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i8* null, i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.5, i64 0, i64 0), i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.6, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.7, i64 0, i64 0), i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.8, i64 0, i64 0), i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.9, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.10, i64 0, i64 0), i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.11, i64 0, i64 0), i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.12, i64 0, i64 0), i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.13, i64 0, i64 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.14, i64 0, i64 0)]
define i8* @get_region_name_CU(i32 %0) {
%2 = add i32 %0, -1
%3 = icmp ult i32 %2, 16
br i1 %3, label %4, label %8
4: ; preds = %1
%5 = sext i32 %2 to i64
%6 = getelementptr inbounds [16 x i8*], [16 x i8*]* @switch.table.get_region_name_CU, 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
}