char *coap2dia_cttType(int type) {
  switch (type) {
  case 0:
    return "text/plain";
  case 40:
    return "application/link-format";
  case 41:
    return "application/xml";
  case 42:
    return "application/octet-stream";
  case 43:
    return "application/rdf+xml";
  case 47:
    return "application/exi";
  case 50:
    return "application/json";
  default:
    return "text/plain";
  }
}


x86 assembly (clang, -O0):
<coap2dia_cttType>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
mov    -0xc(%rbp),%eax
mov    %rax,-0x18(%rbp)
sub    $0x32,%rax
ja     119c <coap2dia_cttType+0x9c>
mov    -0x18(%rbp),%rax
lea    0xedd(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xf99(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a7 <coap2dia_cttType+0xa7>
lea    0xf94(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a7 <coap2dia_cttType+0xa7>
lea    0xf9c(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a7 <coap2dia_cttType+0xa7>
lea    0xf9c(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a7 <coap2dia_cttType+0xa7>
lea    0xfa5(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a7 <coap2dia_cttType+0xa7>
lea    0xfa9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a7 <coap2dia_cttType+0xa7>
lea    0xfa9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11a7 <coap2dia_cttType+0xa7>
lea    0xf29(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<coap2dia_cttType>:
add    $0xffffffd8,%edi
cmp    $0xa,%edi
ja     111a <coap2dia_cttType+0x1a>
movslq %edi,%rax
lea    0xf72(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xedf(%rip),%rax
ret

LLVM IR (-O0):
@.str = [11 x i8] c"text/plain\00"
@.str.1 = [24 x i8] c"application/link-format\00"
@.str.2 = [16 x i8] c"application/xml\00"
@.str.3 = [25 x i8] c"application/octet-stream\00"
@.str.4 = [20 x i8] c"application/rdf+xml\00"
@.str.5 = [16 x i8] c"application/exi\00"
@.str.6 = [17 x i8] c"application/json\00"
define i8* @coap2dia_cttType(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
switch i32 %4, label %12 [
i32 0, label %5
i32 40, label %6
i32 41, label %7
i32 42, label %8
i32 43, label %9
i32 47, label %10
i32 50, label %11
]
5: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i8** %2
br label %13
6: ; preds = %1
store i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %13
7: ; preds = %1
store i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %13
8: ; preds = %1
store i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %13
9: ; preds = %1
store i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %13
10: ; preds = %1
store i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %13
11: ; preds = %1
store i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %13
12: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i8** %2
br label %13
13: ; preds = %12, %11, %10, %9, %8, %7, %6, %5
%14 = load i8*, i8** %2
ret i8* %14
}

LLVM IR (-O2):
@.str = [11 x i8] c"text/plain\00"
@.str.1 = [24 x i8] c"application/link-format\00"
@.str.2 = [16 x i8] c"application/xml\00"
@.str.3 = [25 x i8] c"application/octet-stream\00"
@.str.4 = [20 x i8] c"application/rdf+xml\00"
@.str.5 = [16 x i8] c"application/exi\00"
@.str.6 = [17 x i8] c"application/json\00"
@reltable.coap2dia_cttType = [11 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([24 x i8]* @.str.1 to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([16 x i8]* @.str.2 to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([25 x i8]* @.str.3 to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([20 x i8]* @.str.4 to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([16 x i8]* @.str.5 to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([17 x i8]* @.str.6 to i64), i64 ptrtoint ([11 x i32]* @reltable.coap2dia_cttType to i64)) to i32)]
define i8* @coap2dia_cttType(i32 %0) {
%2 = add i32 %0, -40
%3 = icmp ult i32 %2, 11
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 ([11 x i32]* @reltable.coap2dia_cttType to i8*), i64 %6)
br label %8
8: ; preds = %4, %1
%9 = phi i8* [ getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), %1 ], [ %7, %4 ]
ret i8* %9
}