#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 */
char *dscp_to_str(const uint8_t value) {
  switch (value) {
  case 0:
    return "default";
  case 0b001000:
    return "cs1";
  case 0b010000:
    return "cs2";
  case 0b011000:
    return "cs3";
  case 0b100000:
    return "cs4";
  case 0b101000:
    return "cs5";
  case 0b110000:
    return "cs6";
  case 0b111000:
    return "cs7";
  case 0b001010:
    return "af11";
  case 0b001100:
    return "af12";
  case 0b001110:
    return "af13";
  case 0b010010:
    return "af21";
  case 0b010100:
    return "af22";
  case 0b010110:
    return "af23";
  case 0b011010:
    return "af31";
  case 0b011100:
    return "af32";
  case 0b011110:
    return "af33";
  case 0b100010:
    return "af41";
  case 0b100100:
    return "af42";
  case 0b100110:
    return "af43";
  case 0b101100:
    return "va";
  case 0b101110:
    return "ef";
  default:
    return "non-standard";
  };
}


x86 assembly (clang, -O0):
<dscp_to_str>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
mov    %rax,-0x18(%rbp)
sub    $0x38,%rax
ja     128c <dscp_to_str+0x18c>
mov    -0x18(%rbp),%rax
lea    0xedd(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xfb1(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xfa9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf9d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf91(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf85(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf79(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf6d(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf61(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf55(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf4a(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf3f(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf34(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf29(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf1e(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf13(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xf08(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xefd(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xef2(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xee7(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xedc(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xed1(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xec4(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1297 <dscp_to_str+0x197>
lea    0xeb7(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<dscp_to_str>:
ror    %edi
cmp    $0x1c,%edi
ja     1119 <dscp_to_str+0x19>
movslq %edi,%rax
lea    0xf63(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xf46(%rip),%rax
ret

LLVM IR (-O0):
@.str = [8 x i8] c"default\00"
@.str.1 = [4 x i8] c"cs1\00"
@.str.2 = [4 x i8] c"cs2\00"
@.str.3 = [4 x i8] c"cs3\00"
@.str.4 = [4 x i8] c"cs4\00"
@.str.5 = [4 x i8] c"cs5\00"
@.str.6 = [4 x i8] c"cs6\00"
@.str.7 = [4 x i8] c"cs7\00"
@.str.8 = [5 x i8] c"af11\00"
@.str.9 = [5 x i8] c"af12\00"
@.str.10 = [5 x i8] c"af13\00"
@.str.11 = [5 x i8] c"af21\00"
@.str.12 = [5 x i8] c"af22\00"
@.str.13 = [5 x i8] c"af23\00"
@.str.14 = [5 x i8] c"af31\00"
@.str.15 = [5 x i8] c"af32\00"
@.str.16 = [5 x i8] c"af33\00"
@.str.17 = [5 x i8] c"af41\00"
@.str.18 = [5 x i8] c"af42\00"
@.str.19 = [5 x i8] c"af43\00"
@.str.20 = [3 x i8] c"va\00"
@.str.21 = [3 x i8] c"ef\00"
@.str.22 = [13 x i8] c"non-standard\00"
define i8* @dscp_to_str(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %27 [
i32 0, label %5
i32 8, label %6
i32 16, label %7
i32 24, label %8
i32 32, label %9
i32 40, label %10
i32 48, label %11
i32 56, label %12
i32 10, label %13
i32 12, label %14
i32 14, label %15
i32 18, label %16
i32 20, label %17
i32 22, label %18
i32 26, label %19
i32 28, label %20
i32 30, label %21
i32 34, label %22
i32 36, label %23
i32 38, label %24
i32 44, label %25
i32 46, label %26
]
5: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i8** %2
br label %28
6: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %28
7: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %28
8: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %28
9: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %28
10: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %28
11: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %28
12: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %28
13: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.8, i64 0, i64 0), i8** %2
br label %28
14: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.9, i64 0, i64 0), i8** %2
br label %28
15: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.10, i64 0, i64 0), i8** %2
br label %28
16: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.11, i64 0, i64 0), i8** %2
br label %28
17: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.12, i64 0, i64 0), i8** %2
br label %28
18: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.13, i64 0, i64 0), i8** %2
br label %28
19: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.14, i64 0, i64 0), i8** %2
br label %28
20: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.15, i64 0, i64 0), i8** %2
br label %28
21: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.16, i64 0, i64 0), i8** %2
br label %28
22: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.17, i64 0, i64 0), i8** %2
br label %28
23: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.18, i64 0, i64 0), i8** %2
br label %28
24: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.19, i64 0, i64 0), i8** %2
br label %28
25: ; preds = %1
store i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.20, i64 0, i64 0), i8** %2
br label %28
26: ; preds = %1
store i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.21, i64 0, i64 0), i8** %2
br label %28
27: ; preds = %1
store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.22, i64 0, i64 0), i8** %2
br label %28
28: ; preds = %27, %26, %25, %24, %23, %22, %21, %20, %19, %18, %17, %16, %15, %14, %13, %12, %11, %10, %9, %8, %7, %6, %5
%29 = load i8*, i8** %2
ret i8* %29
}

LLVM IR (-O2):
@.str = [8 x i8] c"default\00"
@.str.1 = [4 x i8] c"cs1\00"
@.str.2 = [4 x i8] c"cs2\00"
@.str.3 = [4 x i8] c"cs3\00"
@.str.4 = [4 x i8] c"cs4\00"
@.str.5 = [4 x i8] c"cs5\00"
@.str.6 = [4 x i8] c"cs6\00"
@.str.7 = [4 x i8] c"cs7\00"
@.str.8 = [5 x i8] c"af11\00"
@.str.9 = [5 x i8] c"af12\00"
@.str.10 = [5 x i8] c"af13\00"
@.str.11 = [5 x i8] c"af21\00"
@.str.12 = [5 x i8] c"af22\00"
@.str.13 = [5 x i8] c"af23\00"
@.str.14 = [5 x i8] c"af31\00"
@.str.15 = [5 x i8] c"af32\00"
@.str.16 = [5 x i8] c"af33\00"
@.str.17 = [5 x i8] c"af41\00"
@.str.18 = [5 x i8] c"af42\00"
@.str.19 = [5 x i8] c"af43\00"
@.str.20 = [3 x i8] c"va\00"
@.str.21 = [3 x i8] c"ef\00"
@.str.22 = [13 x i8] c"non-standard\00"
@reltable.dscp_to_str = [29 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.22 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.22 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.22 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.1 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.8 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.9 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.10 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.2 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.11 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.12 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.13 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.3 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.14 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.15 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.16 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.4 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.17 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.18 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.19 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.5 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.22 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([3 x i8]* @.str.20 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([3 x i8]* @.str.21 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.6 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.22 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.22 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.22 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.7 to i64), i64 ptrtoint ([29 x i32]* @reltable.dscp_to_str to i64)) to i32)]
define i8* @dscp_to_str(i32 %0) {
%2 = tail call i32 @llvm.fshl.i32(i32 %0, i32 %0, i32 31)
%3 = icmp ult i32 %2, 29
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 ([29 x i32]* @reltable.dscp_to_str to i8*), i64 %6)
br label %8
8: ; preds = %1, %4
%9 = phi i8* [ %7, %4 ], [ getelementptr inbounds ([13 x i8], [13 x i8]* @.str.22, i64 0, i64 0), %1 ]
ret i8* %9
}