#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 nstype;

/* Variables and functions */
#define CDS 135
#define DNANS 134
#define DNS 133
#define IVY 132
#define NIS 131
char const *N_(char *);
#define SUNYP 130
#define X500 129
#define XCHS 128
const char *nis_nstype2str(const nstype type) {
  switch (type) {
  case NIS:
    return "NIS";
  case SUNYP:
    return "SUNYP";
  case IVY:
    return "IVY";
  case DNS:
    return "DNS";
  case X500:
    return "X500";
  case DNANS:
    return "DNANS";
  case XCHS:
    return "XCHS";
  case CDS:
    return "CDS";
  default:
    return N_("UNKNOWN");
  }
}


x86 assembly (clang, -O0):
<nis_nstype2str>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
add    $0xffffff80,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x7,%eax
ja     11c4 <nis_nstype2str+0xb4>
mov    -0x18(%rbp),%rax
lea    0xec5(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xed5(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11d4 <nis_nstype2str+0xc4>
lea    0xec9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11d4 <nis_nstype2str+0xc4>
lea    0xebf(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11d4 <nis_nstype2str+0xc4>
lea    0xeb3(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11d4 <nis_nstype2str+0xc4>
lea    0xea7(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11d4 <nis_nstype2str+0xc4>
lea    0xe9c(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11d4 <nis_nstype2str+0xc4>
lea    0xe92(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11d4 <nis_nstype2str+0xc4>
lea    0xe87(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11d4 <nis_nstype2str+0xc4>
lea    0xe7b(%rip),%rdi
call   1030 <N_@plt>
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<nis_nstype2str>:
add    $0xffffff80,%edi
cmp    $0x8,%edi
jae    112a <nis_nstype2str+0x1a>
movslq %edi,%rax
lea    0xf0e(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xef5(%rip),%rdi
jmp    1030 <N_@plt>

LLVM IR (-O0):
@.str = [4 x i8] c"NIS\00"
@.str.1 = [6 x i8] c"SUNYP\00"
@.str.2 = [4 x i8] c"IVY\00"
@.str.3 = [4 x i8] c"DNS\00"
@.str.4 = [5 x i8] c"X500\00"
@.str.5 = [6 x i8] c"DNANS\00"
@.str.6 = [5 x i8] c"XCHS\00"
@.str.7 = [4 x i8] c"CDS\00"
@.str.8 = [8 x i8] c"UNKNOWN\00"
define i8* @nis_nstype2str(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %13 [
i32 131, label %5
i32 130, label %6
i32 132, label %7
i32 133, label %8
i32 129, label %9
i32 134, label %10
i32 128, label %11
i32 135, label %12
]
5: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8** %2
br label %15
6: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %15
7: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %15
8: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %15
9: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %15
10: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %15
11: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %15
12: ; preds = %1
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %15
13: ; preds = %1
%14 = call i8* @N_(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.8, i64 0, i64 0))
store i8* %14, i8** %2
br label %15
15: ; preds = %13, %12, %11, %10, %9, %8, %7, %6, %5
%16 = load i8*, i8** %2
ret i8* %16
}

LLVM IR (-O2):
@.str = [4 x i8] c"NIS\00"
@.str.1 = [6 x i8] c"SUNYP\00"
@.str.2 = [4 x i8] c"IVY\00"
@.str.3 = [4 x i8] c"DNS\00"
@.str.4 = [5 x i8] c"X500\00"
@.str.5 = [6 x i8] c"DNANS\00"
@.str.6 = [5 x i8] c"XCHS\00"
@.str.7 = [4 x i8] c"CDS\00"
@.str.8 = [8 x i8] c"UNKNOWN\00"
@reltable.nis_nstype2str = [8 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.6 to i64), i64 ptrtoint ([8 x i32]* @reltable.nis_nstype2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.4 to i64), i64 ptrtoint ([8 x i32]* @reltable.nis_nstype2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.1 to i64), i64 ptrtoint ([8 x i32]* @reltable.nis_nstype2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str to i64), i64 ptrtoint ([8 x i32]* @reltable.nis_nstype2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.2 to i64), i64 ptrtoint ([8 x i32]* @reltable.nis_nstype2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.3 to i64), i64 ptrtoint ([8 x i32]* @reltable.nis_nstype2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.5 to i64), i64 ptrtoint ([8 x i32]* @reltable.nis_nstype2str to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.7 to i64), i64 ptrtoint ([8 x i32]* @reltable.nis_nstype2str to i64)) to i32)]
define i8* @nis_nstype2str(i32 %0) {
%2 = add i32 %0, -128
%3 = icmp ult i32 %2, 8
br i1 %3, label %6, label %4
4: ; preds = %1
%5 = tail call i8* @N_(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.8, i64 0, i64 0))
br label %10
6: ; preds = %1
%7 = sext i32 %2 to i64
%8 = shl i64 %7, 2
%9 = call i8* @llvm.load.relative.i64(i8* bitcast ([8 x i32]* @reltable.nis_nstype2str to i8*), i64 %8)
br label %10
10: ; preds = %6, %4
%11 = phi i8* [ %5, %4 ], [ %9, %6 ]
ret i8* %11
}