char *spd_Name(int l) {
  char *s;
  if (l == 0)
    s = "s";
  else if (l == 1)
    s = "p";
  else if (l == 2)
    s = "d";
  else if (l == 3)
    s = "f";
  else if (l == 4)
    s = "g";
  else if (l == 5)
    s = "h";
  else if (l == 6)
    s = "i";
  else if (l == 7)
    s = "j";
  else
    s = "?";
  return s;
}


x86 assembly (clang, -O0):
<spd_Name>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0x4(%rbp)
cmpl   $0x0,-0x4(%rbp)
jne    1121 <spd_Name+0x21>
lea    0xee8(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    1205 <spd_Name+0x105>
cmpl   $0x1,-0x4(%rbp)
jne    113b <spd_Name+0x3b>
lea    0xed0(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    1200 <spd_Name+0x100>
cmpl   $0x2,-0x4(%rbp)
jne    1155 <spd_Name+0x55>
lea    0xeb8(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11fb <spd_Name+0xfb>
cmpl   $0x3,-0x4(%rbp)
jne    116f <spd_Name+0x6f>
lea    0xea0(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11f6 <spd_Name+0xf6>
cmpl   $0x4,-0x4(%rbp)
jne    1189 <spd_Name+0x89>
lea    0xe88(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11f1 <spd_Name+0xf1>
cmpl   $0x5,-0x4(%rbp)
jne    11a3 <spd_Name+0xa3>
lea    0xe70(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11ec <spd_Name+0xec>
cmpl   $0x6,-0x4(%rbp)
jne    11bd <spd_Name+0xbd>
lea    0xe58(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11e7 <spd_Name+0xe7>
cmpl   $0x7,-0x4(%rbp)
jne    11d7 <spd_Name+0xd7>
lea    0xe40(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11e2 <spd_Name+0xe2>
lea    0xe32(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    11e7 <spd_Name+0xe7>
jmp    11ec <spd_Name+0xec>
jmp    11f1 <spd_Name+0xf1>
jmp    11f6 <spd_Name+0xf6>
jmp    11fb <spd_Name+0xfb>
jmp    1200 <spd_Name+0x100>
jmp    1205 <spd_Name+0x105>
mov    -0x10(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<spd_Name>:
cmp    $0x7,%edi
ja     1117 <spd_Name+0x17>
movslq %edi,%rax
lea    0xf05(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xef2(%rip),%rax
ret

LLVM IR (-O0):
@.str = [2 x i8] c"s\00"
@.str.1 = [2 x i8] c"p\00"
@.str.2 = [2 x i8] c"d\00"
@.str.3 = [2 x i8] c"f\00"
@.str.4 = [2 x i8] c"g\00"
@.str.5 = [2 x i8] c"h\00"
@.str.6 = [2 x i8] c"i\00"
@.str.7 = [2 x i8] c"j\00"
@.str.8 = [2 x i8] c"?\00"
define i8* @spd_Name(i32 %0) {
%2 = alloca i32
%3 = alloca i8*
store i32 %0, i32* %2
%4 = load i32, i32* %2
%5 = icmp eq i32 %4, 0
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** %3
br label %43
7: ; preds = %1
%8 = load i32, i32* %2
%9 = icmp eq i32 %8, 1
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** %3
br label %42
11: ; preds = %7
%12 = load i32, i32* %2
%13 = icmp eq i32 %12, 2
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** %3
br label %41
15: ; preds = %11
%16 = load i32, i32* %2
%17 = icmp eq i32 %16, 3
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** %3
br label %40
19: ; preds = %15
%20 = load i32, i32* %2
%21 = icmp eq i32 %20, 4
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** %3
br label %39
23: ; preds = %19
%24 = load i32, i32* %2
%25 = icmp eq i32 %24, 5
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** %3
br label %38
27: ; preds = %23
%28 = load i32, i32* %2
%29 = icmp eq i32 %28, 6
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** %3
br label %37
31: ; preds = %27
%32 = load i32, i32* %2
%33 = icmp eq i32 %32, 7
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** %3
br label %36
35: ; preds = %31
store i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.8, i64 0, i64 0), i8** %3
br label %36
36: ; preds = %35, %34
br label %37
37: ; preds = %36, %30
br label %38
38: ; preds = %37, %26
br label %39
39: ; preds = %38, %22
br label %40
40: ; preds = %39, %18
br label %41
41: ; preds = %40, %14
br label %42
42: ; preds = %41, %10
br label %43
43: ; preds = %42, %6
%44 = load i8*, i8** %3
ret i8* %44
}

LLVM IR (-O2):
@.str = [2 x i8] c"s\00"
@.str.1 = [2 x i8] c"p\00"
@.str.2 = [2 x i8] c"d\00"
@.str.3 = [2 x i8] c"f\00"
@.str.4 = [2 x i8] c"g\00"
@.str.5 = [2 x i8] c"h\00"
@.str.6 = [2 x i8] c"i\00"
@.str.7 = [2 x i8] c"j\00"
@.str.8 = [2 x i8] c"?\00"
@reltable.spd_Name = [8 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str to i64), i64 ptrtoint ([8 x i32]* @reltable.spd_Name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.1 to i64), i64 ptrtoint ([8 x i32]* @reltable.spd_Name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.2 to i64), i64 ptrtoint ([8 x i32]* @reltable.spd_Name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.3 to i64), i64 ptrtoint ([8 x i32]* @reltable.spd_Name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.4 to i64), i64 ptrtoint ([8 x i32]* @reltable.spd_Name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.5 to i64), i64 ptrtoint ([8 x i32]* @reltable.spd_Name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.6 to i64), i64 ptrtoint ([8 x i32]* @reltable.spd_Name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([2 x i8]* @.str.7 to i64), i64 ptrtoint ([8 x i32]* @reltable.spd_Name to i64)) to i32)]
define i8* @spd_Name(i32 %0) {
%2 = icmp ult i32 %0, 8
br i1 %2, label %3, label %7
3: ; preds = %1
%4 = sext i32 %0 to i64
%5 = shl i64 %4, 2
%6 = call i8* @llvm.load.relative.i64(i8* bitcast ([8 x i32]* @reltable.spd_Name to i8*), i64 %5)
br label %7
7: ; preds = %1, %3
%8 = phi i8* [ %6, %3 ], [ getelementptr inbounds ([2 x i8], [2 x i8]* @.str.8, i64 0, i64 0), %1 ]
ret i8* %8
}