char *paw_orbital_type_name(int i) {
  char *s;
  if (i == 87)
    s = "bound";
  else if (i == 88)
    s = "virtual";
  else if (i == 89)
    s = "scattering";
  else
    s = "????";
  return s;
}


x86 assembly (clang, -O0):
<paw_orbital_type_name>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0x4(%rbp)
cmpl   $0x57,-0x4(%rbp)
jne    1121 <paw_orbital_type_name+0x21>
lea    0xee8(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    116a <paw_orbital_type_name+0x6a>
cmpl   $0x58,-0x4(%rbp)
jne    113b <paw_orbital_type_name+0x3b>
lea    0xed4(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    1165 <paw_orbital_type_name+0x65>
cmpl   $0x59,-0x4(%rbp)
jne    1155 <paw_orbital_type_name+0x55>
lea    0xec2(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    1160 <paw_orbital_type_name+0x60>
lea    0xebd(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    1165 <paw_orbital_type_name+0x65>
jmp    116a <paw_orbital_type_name+0x6a>
mov    -0x10(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<paw_orbital_type_name>:
add    $0xffffffa9,%edi
cmp    $0x2,%edi
ja     111a <paw_orbital_type_name+0x1a>
movslq %edi,%rax
lea    0xf0e(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xef8(%rip),%rax
ret

LLVM IR (-O0):
@.str = [6 x i8] c"bound\00"
@.str.1 = [8 x i8] c"virtual\00"
@.str.2 = [11 x i8] c"scattering\00"
@.str.3 = [5 x i8] c"????\00"
define i8* @paw_orbital_type_name(i32 %0) {
%2 = alloca i32
%3 = alloca i8*
store i32 %0, i32* %2
%4 = load i32, i32* %2
%5 = icmp eq i32 %4, 87
br i1 %5, label %6, label %7
6: ; preds = %1
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8** %3
br label %18
7: ; preds = %1
%8 = load i32, i32* %2
%9 = icmp eq i32 %8, 88
br i1 %9, label %10, label %11
10: ; preds = %7
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0), i8** %3
br label %17
11: ; preds = %7
%12 = load i32, i32* %2
%13 = icmp eq i32 %12, 89
br i1 %13, label %14, label %15
14: ; preds = %11
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i8** %3
br label %16
15: ; preds = %11
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), i8** %3
br label %16
16: ; preds = %15, %14
br label %17
17: ; preds = %16, %10
br label %18
18: ; preds = %17, %6
%19 = load i8*, i8** %3
ret i8* %19
}

LLVM IR (-O2):
@.str = [6 x i8] c"bound\00"
@.str.1 = [8 x i8] c"virtual\00"
@.str.2 = [11 x i8] c"scattering\00"
@.str.3 = [5 x i8] c"????\00"
@reltable.paw_orbital_type_name = [3 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str to i64), i64 ptrtoint ([3 x i32]* @reltable.paw_orbital_type_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.1 to i64), i64 ptrtoint ([3 x i32]* @reltable.paw_orbital_type_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str.2 to i64), i64 ptrtoint ([3 x i32]* @reltable.paw_orbital_type_name to i64)) to i32)]
define i8* @paw_orbital_type_name(i32 %0) {
%2 = add i32 %0, -87
%3 = icmp ult i32 %2, 3
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 ([3 x i32]* @reltable.paw_orbital_type_name to i8*), i64 %6)
br label %8
8: ; preds = %1, %4
%9 = phi i8* [ %7, %4 ], [ getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), %1 ]
ret i8* %9
}