char *sting_attack_to_str(int attack_type) {
  if (attack_type == 0x1)
    return "symlink";
  else if (attack_type == 0x2)
    return "hardlink";
  else if (attack_type == 0x4)
    return "squat";
  else
    return "invalid";
}


x86 assembly (clang, -O0):
<sting_attack_to_str>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
cmpl   $0x1,-0xc(%rbp)
jne    1121 <sting_attack_to_str+0x21>
lea    0xee8(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1160 <sting_attack_to_str+0x60>
cmpl   $0x2,-0xc(%rbp)
jne    113b <sting_attack_to_str+0x3b>
lea    0xed6(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1160 <sting_attack_to_str+0x60>
cmpl   $0x4,-0xc(%rbp)
jne    1155 <sting_attack_to_str+0x55>
lea    0xec5(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    1160 <sting_attack_to_str+0x60>
lea    0xebb(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<sting_attack_to_str>:
add    $0xffffffff,%edi
cmp    $0x3,%edi
ja     111a <sting_attack_to_str+0x1a>
movslq %edi,%rax
lea    0xf0e(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xef6(%rip),%rax
ret

LLVM IR (-O0):
@.str = [8 x i8] c"symlink\00"
@.str.1 = [9 x i8] c"hardlink\00"
@.str.2 = [6 x i8] c"squat\00"
@.str.3 = [8 x i8] c"invalid\00"
define i8* @sting_attack_to_str(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
%5 = icmp eq i32 %4, 1
br i1 %5, label %6, label %7
6: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i8** %2
br label %16
7: ; preds = %1
%8 = load i32, i32* %3
%9 = icmp eq i32 %8, 2
br i1 %9, label %10, label %11
10: ; preds = %7
store i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %16
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 ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i8** %2
br label %16
15: ; preds = %11
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %16
16: ; preds = %15, %14, %10, %6
%17 = load i8*, i8** %2
ret i8* %17
}

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