#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_GM(int region_code) {
  switch (region_code) {
  case 1:
    return "Banjul";
  case 2:
    return "Lower River";
  case 3:
    return "Central River";
  case 4:
    return "Upper River";
  case 5:
    return "Western";
  case 7:
    return "North Bank";
  default:
    return NULL;
  }
}


x86 assembly (clang, -O0):
<get_region_name_GM>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x6,%eax
ja     1190 <get_region_name_GM+0x90>
mov    -0x18(%rbp),%rax
lea    0xed9(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xee5(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1198 <get_region_name_GM+0x98>
lea    0xedc(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1198 <get_region_name_GM+0x98>
lea    0xed8(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1198 <get_region_name_GM+0x98>
lea    0xed6(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1198 <get_region_name_GM+0x98>
lea    0xed2(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1198 <get_region_name_GM+0x98>
lea    0xeca(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1198 <get_region_name_GM+0x98>
movq   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<get_region_name_GM>:
add    $0xffffffff,%edi
cmp    $0x6,%edi
ja     1117 <get_region_name_GM+0x17>
movslq %edi,%rax
lea    0x2d06(%rip),%rcx
mov    (%rcx,%rax,8),%rax
ret
xor    %eax,%eax
ret

LLVM IR (-O0):
@.str = [7 x i8] c"Banjul\00"
@.str.1 = [12 x i8] c"Lower River\00"
@.str.2 = [14 x i8] c"Central River\00"
@.str.3 = [12 x i8] c"Upper River\00"
@.str.4 = [8 x i8] c"Western\00"
@.str.5 = [11 x i8] c"North Bank\00"
define i8* @get_region_name_GM(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %11 [
i32 1, label %5
i32 2, label %6
i32 3, label %7
i32 4, label %8
i32 5, label %9
i32 7, label %10
]
5: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i8** %2
br label %12
6: ; preds = %1
store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %12
7: ; preds = %1
store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %12
8: ; preds = %1
store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %12
9: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %12
10: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %12
11: ; preds = %1
store i8* null, i8** %2
br label %12
12: ; preds = %11, %10, %9, %8, %7, %6, %5
%13 = load i8*, i8** %2
ret i8* %13
}

LLVM IR (-O2):
@.str = [7 x i8] c"Banjul\00"
@.str.1 = [12 x i8] c"Lower River\00"
@.str.2 = [14 x i8] c"Central River\00"
@.str.3 = [12 x i8] c"Upper River\00"
@.str.4 = [8 x i8] c"Western\00"
@.str.5 = [11 x i8] c"North Bank\00"
@switch.table.get_region_name_GM = [7 x i8*] [i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.4, i64 0, i64 0), i8* null, i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.5, i64 0, i64 0)]
define i8* @get_region_name_GM(i32 %0) {
%2 = add i32 %0, -1
%3 = icmp ult i32 %2, 7
br i1 %3, label %4, label %8
4: ; preds = %1
%5 = sext i32 %2 to i64
%6 = getelementptr inbounds [7 x i8*], [7 x i8*]* @switch.table.get_region_name_GM, 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
}