char *translate(int cd) {
  if (cd == 2)
    return "2";
  if (cd == 3)
    return "3";
  if (cd == 4)
    return "4";
  if (cd == 5)
    return "5";
  if (cd == 6)
    return "6";
  if (cd == 7)
    return "7";
  if (cd == 8)
    return "8";
  if (cd == 9)
    return "9";
  if (cd == 10)
    return "10";
  if (cd == 11)
    return "J";
  if (cd == 12)
    return "Q";
  if (cd == 13)
    return "K";
  if (cd == 14)
    return "A";
  return "";
}


x86 assembly (clang, -O0):
<translate>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
cmpl   $0x2,-0xc(%rbp)
jne    1121 <translate+0x21>
lea    0xee8(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0x3,-0xc(%rbp)
jne    113b <translate+0x3b>
lea    0xed0(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0x4,-0xc(%rbp)
jne    1155 <translate+0x55>
lea    0xeb8(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0x5,-0xc(%rbp)
jne    116f <translate+0x6f>
lea    0xea0(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0x6,-0xc(%rbp)
jne    1189 <translate+0x89>
lea    0xe88(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0x7,-0xc(%rbp)
jne    11a3 <translate+0xa3>
lea    0xe70(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0x8,-0xc(%rbp)
jne    11bd <translate+0xbd>
lea    0xe58(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0x9,-0xc(%rbp)
jne    11d7 <translate+0xd7>
lea    0xe40(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0xa,-0xc(%rbp)
jne    11f1 <translate+0xf1>
lea    0xe28(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0xb,-0xc(%rbp)
jne    120b <translate+0x10b>
lea    0xe11(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0xc,-0xc(%rbp)
jne    1225 <translate+0x125>
lea    0xdf9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0xd,-0xc(%rbp)
jne    123f <translate+0x13f>
lea    0xde1(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
cmpl   $0xe,-0xc(%rbp)
jne    1259 <translate+0x159>
lea    0xdc9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1264 <translate+0x164>
lea    0xdb2(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<translate>:
add    $0xfffffffe,%edi
cmp    $0xc,%edi
ja     111a <translate+0x1a>
movslq %edi,%rax
lea    0xf0a(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xef1(%rip),%rax
ret

LLVM IR (-O0):
@.str = [2 x i8] c"2\00"
@.str.1 = [2 x i8] c"3\00"
@.str.2 = [2 x i8] c"4\00"
@.str.3 = [2 x i8] c"5\00"
@.str.4 = [2 x i8] c"6\00"
@.str.5 = [2 x i8] c"7\00"
@.str.6 = [2 x i8] c"8\00"
@.str.7 = [2 x i8] c"9\00"
@.str.8 = [3 x i8] c"10\00"
@.str.9 = [2 x i8] c"J\00"
@.str.10 = [2 x i8] c"Q\00"
@.str.11 = [2 x i8] c"K\00"
@.str.12 = [2 x i8] c"A\00"
@.str.13 = [1 x i8] zeroinitializer
define i8* @translate(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
%5 = icmp eq i32 %4, 2
br i1 %5, label %6, label %7
6: ; preds = %1
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0), i8** %2
br label %56
7: ; preds = %1
%8 = load i32, i32* %3
%9 = icmp eq i32 %8, 3
br i1 %9, label %10, label %11
10: ; preds = %7
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %56
11: ; preds = %7
%12 = load i32, i32* %3
%13 = icmp eq i32 %12, 4
br i1 %13, label %14, label %15
14: ; preds = %11
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %56
15: ; preds = %11
%16 = load i32, i32* %3
%17 = icmp eq i32 %16, 5
br i1 %17, label %18, label %19
18: ; preds = %15
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %56
19: ; preds = %15
%20 = load i32, i32* %3
%21 = icmp eq i32 %20, 6
br i1 %21, label %22, label %23
22: ; preds = %19
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %56
23: ; preds = %19
%24 = load i32, i32* %3
%25 = icmp eq i32 %24, 7
br i1 %25, label %26, label %27
26: ; preds = %23
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %56
27: ; preds = %23
%28 = load i32, i32* %3
%29 = icmp eq i32 %28, 8
br i1 %29, label %30, label %31
30: ; preds = %27
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %56
31: ; preds = %27
%32 = load i32, i32* %3
%33 = icmp eq i32 %32, 9
br i1 %33, label %34, label %35
34: ; preds = %31
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %56
35: ; preds = %31
%36 = load i32, i32* %3
%37 = icmp eq i32 %36, 10
br i1 %37, label %38, label %39
38: ; preds = %35
store i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.8, i64 0, i64 0), i8** %2
br label %56
39: ; preds = %35
%40 = load i32, i32* %3
%41 = icmp eq i32 %40, 11
br i1 %41, label %42, label %43
42: ; preds = %39
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.9, i64 0, i64 0), i8** %2
br label %56
43: ; preds = %39
%44 = load i32, i32* %3
%45 = icmp eq i32 %44, 12
br i1 %45, label %46, label %47
46: ; preds = %43
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.10, i64 0, i64 0), i8** %2
br label %56
47: ; preds = %43
%48 = load i32, i32* %3
%49 = icmp eq i32 %48, 13
br i1 %49, label %50, label %51
50: ; preds = %47
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.11, i64 0, i64 0), i8** %2
br label %56
51: ; preds = %47
%52 = load i32, i32* %3
%53 = icmp eq i32 %52, 14
br i1 %53, label %54, label %55
54: ; preds = %51
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.12, i64 0, i64 0), i8** %2
br label %56
55: ; preds = %51
store i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.13, i64 0, i64 0), i8** %2
br label %56
56: ; preds = %55, %54, %50, %46, %42, %38, %34, %30, %26, %22, %18, %14, %10, %6
%57 = load i8*, i8** %2
ret i8* %57
}

LLVM IR (-O2):
@.str = [2 x i8] c"2\00"
@.str.1 = [2 x i8] c"3\00"
@.str.2 = [2 x i8] c"4\00"
@.str.3 = [2 x i8] c"5\00"
@.str.4 = [2 x i8] c"6\00"
@.str.5 = [2 x i8] c"7\00"
@.str.6 = [2 x i8] c"8\00"
@.str.7 = [2 x i8] c"9\00"
@.str.8 = [3 x i8] c"10\00"
@.str.9 = [2 x i8] c"J\00"
@.str.10 = [2 x i8] c"Q\00"
@.str.11 = [2 x i8] c"K\00"
@.str.12 = [2 x i8] c"A\00"
@.str.13 = [1 x i8] zeroinitializer
@reltable.translate = [13 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.1 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.2 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.3 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.4 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.5 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.6 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.7 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([3 x i8]* @.str.8 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.9 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.10 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.11 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.12 to i64), i64 ptrtoint ([13 x i32]* @reltable.translate to i64)) to i32)]
define i8* @translate(i32 %0) {
%2 = add i32 %0, -2
%3 = icmp ult i32 %2, 13
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 ([13 x i32]* @reltable.translate to i8*), i64 %6)
br label %8
8: ; preds = %1, %4
%9 = phi i8* [ %7, %4 ], [ getelementptr inbounds ([1 x i8], [1 x i8]* @.str.13, i64 0, i64 0), %1 ]
ret i8* %9
}