#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 int8_t;

/* Variables and functions */
const char *const dpi_get_status_msg(int8_t status_code) {
  switch (status_code) {
  case 0:
    return "STATUS: Everything is ok.";
  case 1:
    return "STATUS: The received IP datagram is a fragment of a "
           " bigger datagram.";
  case 2:
    return "STATUS: The received IP datagram is the last fragment"
           " of a bigger datagram. The original datagram has been"
           " recomposed.";
  case 3:
    return "STATUS: The received TCP segment is out of order in "
           " its stream. It will be buffered waiting for in order"
           " segments.";
  case 4:
    return "STATUS: The TCP connection is terminated.";
  default:
    return "STATUS: Not existing status code.";
  }
}


x86 assembly (clang, -O0):
<dpi_get_status_msg>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
mov    %rax,-0x18(%rbp)
sub    $0x4,%rax
ja     117c <dpi_get_status_msg+0x7c>
mov    -0x18(%rbp),%rax
lea    0xedd(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xee1(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1187 <dpi_get_status_msg+0x87>
lea    0xeeb(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1187 <dpi_get_status_msg+0x87>
lea    0xf21(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1187 <dpi_get_status_msg+0x87>
lea    0xf88(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1187 <dpi_get_status_msg+0x87>
lea    0xfec(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1187 <dpi_get_status_msg+0x87>
lea    0x1006(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<dpi_get_status_msg>:
cmp    $0x4,%edi
ja     1117 <dpi_get_status_msg+0x17>
movslq %edi,%rax
lea    0x1089(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0x1057(%rip),%rax
ret

LLVM IR (-O0):
@.str = [26 x i8] c"STATUS: Everything is ok.\00"
@.str.1 = [70 x i8] c"STATUS: The received IP datagram is a fragment of a bigger datagram.\00"
@.str.2 = [119 x i8] c"STATUS: The received IP datagram is the last fragment of a bigger datagram. The original datagram has been recomposed.\00"
@.str.3 = [116 x i8] c"STATUS: The received TCP segment is out of order in its stream. It will be buffered waiting for in order segments.\00"
@.str.4 = [42 x i8] c"STATUS: The TCP connection is terminated.\00"
@.str.5 = [34 x i8] c"STATUS: Not existing status code.\00"
define i8* @dpi_get_status_msg(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %10 [
i32 0, label %5
i32 1, label %6
i32 2, label %7
i32 3, label %8
i32 4, label %9
]
5: ; preds = %1
store i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0), i8** %2
br label %11
6: ; preds = %1
store i8* getelementptr inbounds ([70 x i8], [70 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %11
7: ; preds = %1
store i8* getelementptr inbounds ([119 x i8], [119 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %11
8: ; preds = %1
store i8* getelementptr inbounds ([116 x i8], [116 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %11
9: ; preds = %1
store i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %11
10: ; preds = %1
store i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %11
11: ; preds = %10, %9, %8, %7, %6, %5
%12 = load i8*, i8** %2
ret i8* %12
}

LLVM IR (-O2):
@.str = [26 x i8] c"STATUS: Everything is ok.\00"
@.str.1 = [70 x i8] c"STATUS: The received IP datagram is a fragment of a bigger datagram.\00"
@.str.2 = [119 x i8] c"STATUS: The received IP datagram is the last fragment of a bigger datagram. The original datagram has been recomposed.\00"
@.str.3 = [116 x i8] c"STATUS: The received TCP segment is out of order in its stream. It will be buffered waiting for in order segments.\00"
@.str.4 = [42 x i8] c"STATUS: The TCP connection is terminated.\00"
@.str.5 = [34 x i8] c"STATUS: Not existing status code.\00"
@reltable.dpi_get_status_msg = [5 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([26 x i8]* @.str to i64), i64 ptrtoint ([5 x i32]* @reltable.dpi_get_status_msg to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([70 x i8]* @.str.1 to i64), i64 ptrtoint ([5 x i32]* @reltable.dpi_get_status_msg to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([119 x i8]* @.str.2 to i64), i64 ptrtoint ([5 x i32]* @reltable.dpi_get_status_msg to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([116 x i8]* @.str.3 to i64), i64 ptrtoint ([5 x i32]* @reltable.dpi_get_status_msg to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([42 x i8]* @.str.4 to i64), i64 ptrtoint ([5 x i32]* @reltable.dpi_get_status_msg to i64)) to i32)]
define i8* @dpi_get_status_msg(i32 %0) {
%2 = icmp ult i32 %0, 5
br i1 %2, label %3, label %7
3: ; preds = %1
%4 = sext i32 %0 to i64
%5 = shl i64 %4, 2
%6 = call i8* @llvm.load.relative.i64(i8* bitcast ([5 x i32]* @reltable.dpi_get_status_msg to i8*), i64 %5)
br label %7
7: ; preds = %1, %3
%8 = phi i8* [ %6, %3 ], [ getelementptr inbounds ([34 x i8], [34 x i8]* @.str.5, i64 0, i64 0), %1 ]
ret i8* %8
}