char *name_for_style(short val) {
  switch (val) {
  case (0):
    return "normal";
  case (1):
    return "emphasized";
  case (2):
    return "preformatted";
  case (3):
    return "header";
  case (4):
    return "subheader";
  case (5):
    return "alert";
  case (6):
    return "note";
  case (7):
    return "blockquote";
  case (8):
    return "input";
  case (9):
    return "user1";
  case (10):
    return "user2";
  default:
    return "unknown";
  }
}


x86 assembly (clang, -O0):
<name_for_style>:
push   %rbp
mov    %rsp,%rbp
mov    %di,%ax
mov    %ax,-0xa(%rbp)
movswl -0xa(%rbp),%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0xa,%eax
ja     11e2 <name_for_style+0xe2>
mov    -0x18(%rbp),%rax
lea    0xed7(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xef3(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xeea(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xee5(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xee5(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xed2(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xecc(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xec2(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xeb7(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xeb2(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xea8(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xe9e(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11ed <name_for_style+0xed>
lea    0xe94(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<name_for_style>:
cmp    $0xa,%di
ja     1119 <name_for_style+0x19>
movswq %di,%rax
lea    0xf4b(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xf31(%rip),%rax
ret

LLVM IR (-O0):
@.str = [7 x i8] c"normal\00"
@.str.1 = [11 x i8] c"emphasized\00"
@.str.2 = [13 x i8] c"preformatted\00"
@.str.3 = [7 x i8] c"header\00"
@.str.4 = [10 x i8] c"subheader\00"
@.str.5 = [6 x i8] c"alert\00"
@.str.6 = [5 x i8] c"note\00"
@.str.7 = [11 x i8] c"blockquote\00"
@.str.8 = [6 x i8] c"input\00"
@.str.9 = [6 x i8] c"user1\00"
@.str.10 = [6 x i8] c"user2\00"
@.str.11 = [8 x i8] c"unknown\00"
define i8* @name_for_style(i16 signext %0) {
%2 = alloca i8*
%3 = alloca i16
store i16 %0, i16* %3
%4 = load i16, i16* %3
%5 = sext i16 %4 to i32
switch i32 %5, label %17 [
i32 0, label %6
i32 1, label %7
i32 2, label %8
i32 3, label %9
i32 4, label %10
i32 5, label %11
i32 6, label %12
i32 7, label %13
i32 8, label %14
i32 9, label %15
i32 10, label %16
]
6: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i8** %2
br label %18
7: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %18
8: ; preds = %1
store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %18
9: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %18
10: ; preds = %1
store i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %18
11: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %18
12: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %18
13: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %18
14: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.8, i64 0, i64 0), i8** %2
br label %18
15: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.9, i64 0, i64 0), i8** %2
br label %18
16: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.10, i64 0, i64 0), i8** %2
br label %18
17: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.11, i64 0, i64 0), i8** %2
br label %18
18: ; preds = %17, %16, %15, %14, %13, %12, %11, %10, %9, %8, %7, %6
%19 = load i8*, i8** %2
ret i8* %19
}

LLVM IR (-O2):
@.str = [7 x i8] c"normal\00"
@.str.1 = [11 x i8] c"emphasized\00"
@.str.2 = [13 x i8] c"preformatted\00"
@.str.3 = [7 x i8] c"header\00"
@.str.4 = [10 x i8] c"subheader\00"
@.str.5 = [6 x i8] c"alert\00"
@.str.6 = [5 x i8] c"note\00"
@.str.7 = [11 x i8] c"blockquote\00"
@.str.8 = [6 x i8] c"input\00"
@.str.9 = [6 x i8] c"user1\00"
@.str.10 = [6 x i8] c"user2\00"
@.str.11 = [8 x i8] c"unknown\00"
@reltable.name_for_style = [11 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str.1 to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([13 x i8]* @.str.2 to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.3 to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([10 x i8]* @.str.4 to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.5 to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str.6 to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str.7 to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.8 to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.9 to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.10 to i64), i64 ptrtoint ([11 x i32]* @reltable.name_for_style to i64)) to i32)]
define i8* @name_for_style(i16 signext %0) {
%2 = icmp ult i16 %0, 11
br i1 %2, label %3, label %7
3: ; preds = %1
%4 = sext i16 %0 to i64
%5 = shl i64 %4, 2
%6 = call i8* @llvm.load.relative.i64(i8* bitcast ([11 x i32]* @reltable.name_for_style to i8*), i64 %5)
br label %7
7: ; preds = %1, %3
%8 = phi i8* [ %6, %3 ], [ getelementptr inbounds ([8 x i8], [8 x i8]* @.str.11, i64 0, i64 0), %1 ]
ret i8* %8
}