const char *videoinput_get_norm_name(int norm) {
  if (norm == 0) {
    return "NTSC";
  } else if (norm == 1) {
    return "PAL";
  } else if (norm == 2) {
    return "SECAM";
  } else if (norm == 3) {
    return "PAL-NC";
  } else if (norm == 4) {
    return "PAL-M";
  } else if (norm == 5) {
    return "PAL-N";
  } else if (norm == 6) {
    return "NTSC-JP";
  } else if (norm == 7) {
    return "PAL-60";
  } else {
    return "ERROR";
  }
}


x86 assembly (clang, -O0):
<videoinput_get_norm_name>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0xc(%rbp)
cmpl   $0x0,-0xc(%rbp)
jne    1121 <videoinput_get_norm_name+0x21>
lea    0xee8(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11e2 <videoinput_get_norm_name+0xe2>
cmpl   $0x1,-0xc(%rbp)
jne    113b <videoinput_get_norm_name+0x3b>
lea    0xed3(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11e2 <videoinput_get_norm_name+0xe2>
cmpl   $0x2,-0xc(%rbp)
jne    1155 <videoinput_get_norm_name+0x55>
lea    0xebd(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11e2 <videoinput_get_norm_name+0xe2>
cmpl   $0x3,-0xc(%rbp)
jne    116f <videoinput_get_norm_name+0x6f>
lea    0xea9(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11e2 <videoinput_get_norm_name+0xe2>
cmpl   $0x4,-0xc(%rbp)
jne    1189 <videoinput_get_norm_name+0x89>
lea    0xe96(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11e2 <videoinput_get_norm_name+0xe2>
cmpl   $0x5,-0xc(%rbp)
jne    11a3 <videoinput_get_norm_name+0xa3>
lea    0xe82(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11e2 <videoinput_get_norm_name+0xe2>
cmpl   $0x6,-0xc(%rbp)
jne    11bd <videoinput_get_norm_name+0xbd>
lea    0xe6e(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11e2 <videoinput_get_norm_name+0xe2>
cmpl   $0x7,-0xc(%rbp)
jne    11d7 <videoinput_get_norm_name+0xd7>
lea    0xe5c(%rip),%rax
mov    %rax,-0x8(%rbp)
jmp    11e2 <videoinput_get_norm_name+0xe2>
lea    0xe53(%rip),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
pop    %rbp
ret

x86 assembly (clang, -O2):
<videoinput_get_norm_name>:
cmp    $0x7,%edi
ja     1117 <videoinput_get_norm_name+0x17>
movslq %edi,%rax
lea    0xf29(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
ret
lea    0xf13(%rip),%rax
ret

LLVM IR (-O0):
@.str = [5 x i8] c"NTSC\00"
@.str.1 = [4 x i8] c"PAL\00"
@.str.2 = [6 x i8] c"SECAM\00"
@.str.3 = [7 x i8] c"PAL-NC\00"
@.str.4 = [6 x i8] c"PAL-M\00"
@.str.5 = [6 x i8] c"PAL-N\00"
@.str.6 = [8 x i8] c"NTSC-JP\00"
@.str.7 = [7 x i8] c"PAL-60\00"
@.str.8 = [6 x i8] c"ERROR\00"
define i8* @videoinput_get_norm_name(i32 %0) {
%2 = alloca i8*
%3 = alloca i32
store i32 %0, i32* %3
%4 = load i32, i32* %3
%5 = icmp eq i32 %4, 0
br i1 %5, label %6, label %7
6: ; preds = %1
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i8** %2
br label %36
7: ; preds = %1
%8 = load i32, i32* %3
%9 = icmp eq i32 %8, 1
br i1 %9, label %10, label %11
10: ; preds = %7
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8** %2
br label %36
11: ; preds = %7
%12 = load i32, i32* %3
%13 = icmp eq i32 %12, 2
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 %36
15: ; preds = %11
%16 = load i32, i32* %3
%17 = icmp eq i32 %16, 3
br i1 %17, label %18, label %19
18: ; preds = %15
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8** %2
br label %36
19: ; preds = %15
%20 = load i32, i32* %3
%21 = icmp eq i32 %20, 4
br i1 %21, label %22, label %23
22: ; preds = %19
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0), i8** %2
br label %36
23: ; preds = %19
%24 = load i32, i32* %3
%25 = icmp eq i32 %24, 5
br i1 %25, label %26, label %27
26: ; preds = %23
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.5, i64 0, i64 0), i8** %2
br label %36
27: ; preds = %23
%28 = load i32, i32* %3
%29 = icmp eq i32 %28, 6
br i1 %29, label %30, label %31
30: ; preds = %27
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.6, i64 0, i64 0), i8** %2
br label %36
31: ; preds = %27
%32 = load i32, i32* %3
%33 = icmp eq i32 %32, 7
br i1 %33, label %34, label %35
34: ; preds = %31
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.7, i64 0, i64 0), i8** %2
br label %36
35: ; preds = %31
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.8, i64 0, i64 0), i8** %2
br label %36
36: ; preds = %35, %34, %30, %26, %22, %18, %14, %10, %6
%37 = load i8*, i8** %2
ret i8* %37
}

LLVM IR (-O2):
@.str = [5 x i8] c"NTSC\00"
@.str.1 = [4 x i8] c"PAL\00"
@.str.2 = [6 x i8] c"SECAM\00"
@.str.3 = [7 x i8] c"PAL-NC\00"
@.str.4 = [6 x i8] c"PAL-M\00"
@.str.5 = [6 x i8] c"PAL-N\00"
@.str.6 = [8 x i8] c"NTSC-JP\00"
@.str.7 = [7 x i8] c"PAL-60\00"
@.str.8 = [6 x i8] c"ERROR\00"
@reltable.videoinput_get_norm_name = [8 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([5 x i8]* @.str to i64), i64 ptrtoint ([8 x i32]* @reltable.videoinput_get_norm_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.1 to i64), i64 ptrtoint ([8 x i32]* @reltable.videoinput_get_norm_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.2 to i64), i64 ptrtoint ([8 x i32]* @reltable.videoinput_get_norm_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.3 to i64), i64 ptrtoint ([8 x i32]* @reltable.videoinput_get_norm_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.4 to i64), i64 ptrtoint ([8 x i32]* @reltable.videoinput_get_norm_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.5 to i64), i64 ptrtoint ([8 x i32]* @reltable.videoinput_get_norm_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.6 to i64), i64 ptrtoint ([8 x i32]* @reltable.videoinput_get_norm_name to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.7 to i64), i64 ptrtoint ([8 x i32]* @reltable.videoinput_get_norm_name to i64)) to i32)]
define i8* @videoinput_get_norm_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.videoinput_get_norm_name to i8*), i64 %5)
br label %7
7: ; preds = %1, %3
%8 = phi i8* [ %6, %3 ], [ getelementptr inbounds ([6 x i8], [6 x i8]* @.str.8, i64 0, i64 0), %1 ]
ret i8* %8
}