char decode4b6bsymbol(char inSymbol, char *outSymbol) {
  switch (inSymbol) {
  case 0x15: {
    *outSymbol = 0x00;
    return (0);
  }
  case 0x31: {
    *outSymbol = 0x01;
    return (0);
  }
  case 0x32: {
    *outSymbol = 0x02;
    return (0);
  }
  case 0x23: {
    *outSymbol = 0x03;
    return (0);
  }
  case 0x34: {
    *outSymbol = 0x04;
    return (0);
  }
  case 0x25: {
    *outSymbol = 0x05;
    return (0);
  }
  case 0x26: {
    *outSymbol = 0x06;
    return (0);
  }
  case 0x16: {
    *outSymbol = 0x07;
    return (0);
  }
  case 0x1A: {
    *outSymbol = 0x08;
    return (0);
  }
  case 0x19: {
    *outSymbol = 0x09;
    return (0);
  }
  case 0x2A: {
    *outSymbol = 0x0A;
    return (0);
  }
  case 0x0B: {
    *outSymbol = 0x0B;
    return (0);
  }
  case 0x2C: {
    *outSymbol = 0x0C;
    return (0);
  }
  case 0x0D: {
    *outSymbol = 0x0D;
    return (0);
  }
  case 0x0E: {
    *outSymbol = 0x0E;
    return (0);
  }
  case 0x1C: {
    *outSymbol = 0x0F;
    return (0);
  }
  default: {
    *outSymbol = 0x00;
    return (1);
  }
  }
}


x86 assembly (clang, -O0):
<decode4b6bsymbol>:
push   %rbp
mov    %rsp,%rbp
mov    %dil,%al
mov    %al,-0x2(%rbp)
mov    %rsi,-0x10(%rbp)
movsbl -0x2(%rbp),%eax
add    $0xfffffff5,%eax
mov    %eax,%ecx
mov    %rcx,-0x18(%rbp)
sub    $0x29,%eax
ja     1238 <decode4b6bsymbol+0x138>
mov    -0x18(%rbp),%rax
lea    0xed1(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
mov    -0x10(%rbp),%rax
movb   $0x0,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0x1,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0x2,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0x3,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0x4,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0x5,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0x6,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0x7,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0x8,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0x9,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0xa,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0xb,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0xc,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0xd,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0xe,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0xf,(%rax)
movb   $0x0,-0x1(%rbp)
jmp    1243 <decode4b6bsymbol+0x143>
mov    -0x10(%rbp),%rax
movb   $0x0,(%rax)
movb   $0x1,-0x1(%rbp)
movsbl -0x1(%rbp),%eax
pop    %rbp
ret

x86 assembly (clang, -O2):
<decode4b6bsymbol>:
add    $0xfffffff5,%edi
cmp    $0x29,%edi
ja     115b <decode4b6bsymbol+0x5b>
xor    %ecx,%ecx
lea    0xeef(%rip),%rax
movslq (%rax,%rdi,4),%rdx
add    %rax,%rdx
xor    %eax,%eax
jmp    *%rdx
mov    $0xb,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0xd,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0xe,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0x7,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0x9,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0x8,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0xf,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0x3,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0x5,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0x6,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0xa,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0xc,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0x1,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0x2,%cl
jmp    1156 <decode4b6bsymbol+0x56>
mov    $0x4,%cl
xor    %eax,%eax
mov    %cl,(%rsi)
ret
mov    $0x1,%al
xor    %ecx,%ecx
mov    %cl,(%rsi)
ret

LLVM IR (-O0):
define signext i8 @decode4b6bsymbol(i8 signext %0, i8* %1) {
%3 = alloca i8
%4 = alloca i8
%5 = alloca i8*
store i8 %0, i8* %4
store i8* %1, i8** %5
%6 = load i8, i8* %4
%7 = sext i8 %6 to i32
switch i32 %7, label %40 [
i32 21, label %8
i32 49, label %10
i32 50, label %12
i32 35, label %14
i32 52, label %16
i32 37, label %18
i32 38, label %20
i32 22, label %22
i32 26, label %24
i32 25, label %26
i32 42, label %28
i32 11, label %30
i32 44, label %32
i32 13, label %34
i32 14, label %36
i32 28, label %38
]
8: ; preds = %2
%9 = load i8*, i8** %5
store i8 0, i8* %9
store i8 0, i8* %3
br label %42
10: ; preds = %2
%11 = load i8*, i8** %5
store i8 1, i8* %11
store i8 0, i8* %3
br label %42
12: ; preds = %2
%13 = load i8*, i8** %5
store i8 2, i8* %13
store i8 0, i8* %3
br label %42
14: ; preds = %2
%15 = load i8*, i8** %5
store i8 3, i8* %15
store i8 0, i8* %3
br label %42
16: ; preds = %2
%17 = load i8*, i8** %5
store i8 4, i8* %17
store i8 0, i8* %3
br label %42
18: ; preds = %2
%19 = load i8*, i8** %5
store i8 5, i8* %19
store i8 0, i8* %3
br label %42
20: ; preds = %2
%21 = load i8*, i8** %5
store i8 6, i8* %21
store i8 0, i8* %3
br label %42
22: ; preds = %2
%23 = load i8*, i8** %5
store i8 7, i8* %23
store i8 0, i8* %3
br label %42
24: ; preds = %2
%25 = load i8*, i8** %5
store i8 8, i8* %25
store i8 0, i8* %3
br label %42
26: ; preds = %2
%27 = load i8*, i8** %5
store i8 9, i8* %27
store i8 0, i8* %3
br label %42
28: ; preds = %2
%29 = load i8*, i8** %5
store i8 10, i8* %29
store i8 0, i8* %3
br label %42
30: ; preds = %2
%31 = load i8*, i8** %5
store i8 11, i8* %31
store i8 0, i8* %3
br label %42
32: ; preds = %2
%33 = load i8*, i8** %5
store i8 12, i8* %33
store i8 0, i8* %3
br label %42
34: ; preds = %2
%35 = load i8*, i8** %5
store i8 13, i8* %35
store i8 0, i8* %3
br label %42
36: ; preds = %2
%37 = load i8*, i8** %5
store i8 14, i8* %37
store i8 0, i8* %3
br label %42
38: ; preds = %2
%39 = load i8*, i8** %5
store i8 15, i8* %39
store i8 0, i8* %3
br label %42
40: ; preds = %2
%41 = load i8*, i8** %5
store i8 0, i8* %41
store i8 1, i8* %3
br label %42
42: ; preds = %40, %38, %36, %34, %32, %30, %28, %26, %24, %22, %20, %18, %16, %14, %12, %10, %8
%43 = load i8, i8* %3
ret i8 %43
}

LLVM IR (-O2):
define signext i8 @decode4b6bsymbol(i8 signext %0, i8* nocapture writeonly %1) {
%3 = sext i8 %0 to i32
switch i32 %3, label %19 [
i32 21, label %20
i32 49, label %4
i32 50, label %5
i32 35, label %6
i32 52, label %7
i32 37, label %8
i32 38, label %9
i32 22, label %10
i32 26, label %11
i32 25, label %12
i32 42, label %13
i32 11, label %14
i32 44, label %15
i32 13, label %16
i32 14, label %17
i32 28, label %18
]
4: ; preds = %2
br label %20
5: ; preds = %2
br label %20
6: ; preds = %2
br label %20
7: ; preds = %2
br label %20
8: ; preds = %2
br label %20
9: ; preds = %2
br label %20
10: ; preds = %2
br label %20
11: ; preds = %2
br label %20
12: ; preds = %2
br label %20
13: ; preds = %2
br label %20
14: ; preds = %2
br label %20
15: ; preds = %2
br label %20
16: ; preds = %2
br label %20
17: ; preds = %2
br label %20
18: ; preds = %2
br label %20
19: ; preds = %2
br label %20
20: ; preds = %2, %19, %18, %17, %16, %15, %14, %13, %12, %11, %10, %9, %8, %7, %6, %5, %4
%21 = phi i8 [ 0, %19 ], [ 15, %18 ], [ 14, %17 ], [ 13, %16 ], [ 12, %15 ], [ 11, %14 ], [ 10, %13 ], [ 9, %12 ], [ 8, %11 ], [ 7, %10 ], [ 6, %9 ], [ 5, %8 ], [ 4, %7 ], [ 3, %6 ], [ 2, %5 ], [ 1, %4 ], [ 0, %2 ]
%22 = phi i8 [ 1, %19 ], [ 0, %18 ], [ 0, %17 ], [ 0, %16 ], [ 0, %15 ], [ 0, %14 ], [ 0, %13 ], [ 0, %12 ], [ 0, %11 ], [ 0, %10 ], [ 0, %9 ], [ 0, %8 ], [ 0, %7 ], [ 0, %6 ], [ 0, %5 ], [ 0, %4 ], [ 0, %2 ]
store i8 %21, i8* %1
ret i8 %22
}