#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 */
typedef int uint8_t;

/* Variables and functions */
const char *packet_type_to_string(uint8_t type) {
  switch (type) {
  case 1: {
    return "SERIAL_DATA_IN";
  }
  case 2: {
    return "SERIAL_DATA_OUT";
  }
  case 3: {
    return "INPUT_CHANGE";
  }
  case 4: {
    return "ANALOG_0_TRIGGER";
  }
  case 5: {
    return "ANALOG_1_TRIGGER";
  }
  case 6: {
    return "RF_TAMPER";
  }
  case 7: {
    return "RESET";
  }
  case 8: {
    return "STATUS";
  }
  case 9: {
    return "CHANNEL_BUSY";
  }
  case 10: {
    return "CHANNEL_FREE";
  }
  case 11: {
    return "CHANNEL_JAMMED";
  }
  case 12: {
    return "CHANNEL_TAKEN";
  }
  case 13: {
    return "ACK";
  }
  case 14: {
    return "NACK";
  }
  case 15: {
    return "CID";
  }
  case 16: {
    return "NEXT_RECEIVER";
  }
  case 17: {
    return "SET_OUTPUTS";
  }
  case 18: {
    return "SET_PWM";
  }
  case 19: {
    return "GATEWAY_CONFIG";
  }
  case 20: {
    return "GET_CID";
  }
  case 21: {
    return "GET_DID";
  }
  case 22: {
    return "GET_CONFIG";
  }
  case 23: {
    return "TRACEROUTE";
  }
  default: {
    return "ERR_UNKNOWN_VAL";
  }
  }
}


x86 assembly (clang, -O0):
<packet_type_to_string>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x16,%eax
ja     12a0 <packet_type_to_string+0x1a0>
mov    -0x18(%rbp),%rax
lea    0xed9(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xf25(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf24(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf24(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf21(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf22(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf23(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf1d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf13(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf0a(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf07(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf04(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf03(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf02(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xef1(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xf1b(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xed6(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xed4(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xed0(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xec8(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xec7(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xebf(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xeb7(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xeb2(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    12ab <packet_type_to_string+0x1ab>
lea    0xead(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<packet_type_to_string>:
add    $0xffffffff,%edi
cmp    $0x16,%edi
ja     111a <packet_type_to_string+0x1a>
movslq %edi,%rax
lea    0xff6(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xfd7(%rip),%rax
ret

LLVM IR (-O0):
@.str = [15 x i8] c"SERIAL_DATA_IN\00"
@.str.1 = [16 x i8] c"SERIAL_DATA_OUT\00"
@.str.2 = [13 x i8] c"INPUT_CHANGE\00"
@.str.3 = [17 x i8] c"ANALOG_0_TRIGGER\00"
@.str.4 = [17 x i8] c"ANALOG_1_TRIGGER\00"
@.str.5 = [10 x i8] c"RF_TAMPER\00"
@.str.6 = [6 x i8] c"RESET\00"
@.str.7 = [7 x i8] c"STATUS\00"
@.str.8 = [13 x i8] c"CHANNEL_BUSY\00"
@.str.9 = [13 x i8] c"CHANNEL_FREE\00"
@.str.10 = [15 x i8] c"CHANNEL_JAMMED\00"
@.str.11 = [14 x i8] c"CHANNEL_TAKEN\00"
@.str.12 = [4 x i8] c"ACK\00"
@.str.13 = [5 x i8] c"NACK\00"
@.str.14 = [4 x i8] c"CID\00"
@.str.15 = [14 x i8] c"NEXT_RECEIVER\00"
@.str.16 = [12 x i8] c"SET_OUTPUTS\00"
@.str.17 = [8 x i8] c"SET_PWM\00"
@.str.18 = [15 x i8] c"GATEWAY_CONFIG\00"
@.str.19 = [8 x i8] c"GET_CID\00"
@.str.20 = [8 x i8] c"GET_DID\00"
@.str.21 = [11 x i8] c"GET_CONFIG\00"
@.str.22 = [11 x i8] c"TRACEROUTE\00"
@.str.23 = [16 x i8] c"ERR_UNKNOWN_VAL\00"
define i8* @packet_type_to_string(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %28 [
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
]
5: ; preds = %1
store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i8** %2
br label %29
6: ; preds = %1
store i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %29
7: ; preds = %1
store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %29
8: ; preds = %1
store i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %29
9: ; preds = %1
store i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %29
10: ; preds = %1
store i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %29
11: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %29
12: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %29
13: ; preds = %1
store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.8, i64 0, i64 0), i8** %2
br label %29
14: ; preds = %1
store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.9, i64 0, i64 0), i8** %2
br label %29
15: ; preds = %1
store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.10, i64 0, i64 0), i8** %2
br label %29
16: ; preds = %1
store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.11, i64 0, i64 0), i8** %2
br label %29
17: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.12, i64 0, i64 0), i8** %2
br label %29
18: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.13, i64 0, i64 0), i8** %2
br label %29
19: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.14, i64 0, i64 0), i8** %2
br label %29
20: ; preds = %1
store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.15, i64 0, i64 0), i8** %2
br label %29
21: ; preds = %1
store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.16, i64 0, i64 0), i8** %2
br label %29
22: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.17, i64 0, i64 0), i8** %2
br label %29
23: ; preds = %1
store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.18, i64 0, i64 0), i8** %2
br label %29
24: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.19, i64 0, i64 0), i8** %2
br label %29
25: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.20, i64 0, i64 0), i8** %2
br label %29
26: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.21, i64 0, i64 0), i8** %2
br label %29
27: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.22, i64 0, i64 0), i8** %2
br label %29
28: ; preds = %1
store i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.23, i64 0, i64 0), i8** %2
br label %29
29: ; preds = %28, %27, %26, %25, %24, %23, %22, %21, %20, %19, %18, %17, %16, %15, %14, %13, %12, %11, %10, %9, %8, %7, %6, %5
%30 = load i8*, i8** %2
ret i8* %30
}

LLVM IR (-O2):
@.str = [15 x i8] c"SERIAL_DATA_IN\00"
@.str.1 = [16 x i8] c"SERIAL_DATA_OUT\00"
@.str.2 = [13 x i8] c"INPUT_CHANGE\00"
@.str.3 = [17 x i8] c"ANALOG_0_TRIGGER\00"
@.str.4 = [17 x i8] c"ANALOG_1_TRIGGER\00"
@.str.5 = [10 x i8] c"RF_TAMPER\00"
@.str.6 = [6 x i8] c"RESET\00"
@.str.7 = [7 x i8] c"STATUS\00"
@.str.8 = [13 x i8] c"CHANNEL_BUSY\00"
@.str.9 = [13 x i8] c"CHANNEL_FREE\00"
@.str.10 = [15 x i8] c"CHANNEL_JAMMED\00"
@.str.11 = [14 x i8] c"CHANNEL_TAKEN\00"
@.str.12 = [4 x i8] c"ACK\00"
@.str.13 = [5 x i8] c"NACK\00"
@.str.14 = [4 x i8] c"CID\00"
@.str.15 = [14 x i8] c"NEXT_RECEIVER\00"
@.str.16 = [12 x i8] c"SET_OUTPUTS\00"
@.str.17 = [8 x i8] c"SET_PWM\00"
@.str.18 = [15 x i8] c"GATEWAY_CONFIG\00"
@.str.19 = [8 x i8] c"GET_CID\00"
@.str.20 = [8 x i8] c"GET_DID\00"
@.str.21 = [11 x i8] c"GET_CONFIG\00"
@.str.22 = [11 x i8] c"TRACEROUTE\00"
@.str.23 = [16 x i8] c"ERR_UNKNOWN_VAL\00"
@reltable.packet_type_to_string = [23 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([15 x i8]* @.str to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([16 x i8]* @.str.1 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.2 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([17 x i8]* @.str.3 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([17 x i8]* @.str.4 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([10 x i8]* @.str.5 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.6 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.7 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.8 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.9 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([15 x i8]* @.str.10 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([14 x i8]* @.str.11 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.12 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.13 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.14 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([14 x i8]* @.str.15 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([12 x i8]* @.str.16 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.17 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([15 x i8]* @.str.18 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.19 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.20 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str.21 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str.22 to i64), i64 ptrtoint ([23 x i32]* @reltable.packet_type_to_string to i64)) to i32)]
define i8* @packet_type_to_string(i32 %0) {
%2 = add i32 %0, -1
%3 = icmp ult i32 %2, 23
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 ([23 x i32]* @reltable.packet_type_to_string to i8*), i64 %6)
br label %8
8: ; preds = %1, %4
%9 = phi i8* [ %7, %4 ], [ getelementptr inbounds ([16 x i8], [16 x i8]* @.str.23, i64 0, i64 0), %1 ]
ret i8* %9
}