#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ printf(char *);
void show_color(int s) {
  switch (s) {
  case 0:
    printf("GCB");
    break;
  case 1:
    printf("GBC");
    break;
  case 2:
    printf("CGB");
    break;
  case 3:
    printf("CBG");
    break;
  case 4:
    printf("BGC");
    break;
  case 5:
    printf("BCG");
    break;
  default:
    printf("Error!");
    break;
  }
}


x86 assembly (clang, -O0):
<show_color>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %edi,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    %rax,-0x10(%rbp)
sub    $0x5,%rax
ja     11a6 <show_color+0x96>
mov    -0x10(%rbp),%rax
lea    0xec9(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xed1(%rip),%rdi
call   1030 <printf@plt>
jmp    11b2 <show_color+0xa2>
lea    0xec4(%rip),%rdi
call   1030 <printf@plt>
jmp    11b2 <show_color+0xa2>
lea    0xeb7(%rip),%rdi
call   1030 <printf@plt>
jmp    11b2 <show_color+0xa2>
lea    0xeaa(%rip),%rdi
call   1030 <printf@plt>
jmp    11b2 <show_color+0xa2>
lea    0xe9d(%rip),%rdi
call   1030 <printf@plt>
jmp    11b2 <show_color+0xa2>
lea    0xe90(%rip),%rdi
call   1030 <printf@plt>
jmp    11b2 <show_color+0xa2>
lea    0xe83(%rip),%rdi
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<show_color>:
cmp    $0x5,%edi
ja     112b <show_color+0x1b>
movslq %edi,%rax
lea    0xf01(%rip),%rcx
movslq (%rcx,%rax,4),%rdi
add    %rcx,%rdi
jmp    1030 <printf@plt>
lea    0xee6(%rip),%rdi
jmp    1030 <printf@plt>

LLVM IR (-O0):
@.str = [4 x i8] c"GCB\00"
@.str.1 = [4 x i8] c"GBC\00"
@.str.2 = [4 x i8] c"CGB\00"
@.str.3 = [4 x i8] c"CBG\00"
@.str.4 = [4 x i8] c"BGC\00"
@.str.5 = [4 x i8] c"BCG\00"
@.str.6 = [7 x i8] c"Error!\00"
define void @show_color(i32 %0) {
%2 = alloca i32
store i32 %0, i32* %2
%3 = load i32, i32* %2
switch i32 %3, label %16 [
i32 0, label %4
i32 1, label %6
i32 2, label %8
i32 3, label %10
i32 4, label %12
i32 5, label %14
]
4: ; preds = %1
%5 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0))
br label %18
6: ; preds = %1
%7 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
br label %18
8: ; preds = %1
%9 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
br label %18
10: ; preds = %1
%11 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
br label %18
12: ; preds = %1
%13 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0))
br label %18
14: ; preds = %1
%15 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0))
br label %18
16: ; preds = %1
%17 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.6, i64 0, i64 0))
br label %18
18: ; preds = %16, %14, %12, %10, %8, %6, %4
ret void
}

LLVM IR (-O2):
@.str = [4 x i8] c"GCB\00"
@.str.1 = [4 x i8] c"GBC\00"
@.str.2 = [4 x i8] c"CGB\00"
@.str.3 = [4 x i8] c"CBG\00"
@.str.4 = [4 x i8] c"BGC\00"
@.str.5 = [4 x i8] c"BCG\00"
@.str.6 = [7 x i8] c"Error!\00"
@reltable.show_color = [6 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str to i64), i64 ptrtoint ([6 x i32]* @reltable.show_color to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.1 to i64), i64 ptrtoint ([6 x i32]* @reltable.show_color to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.2 to i64), i64 ptrtoint ([6 x i32]* @reltable.show_color to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.3 to i64), i64 ptrtoint ([6 x i32]* @reltable.show_color to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.4 to i64), i64 ptrtoint ([6 x i32]* @reltable.show_color to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([4 x i8]* @.str.5 to i64), i64 ptrtoint ([6 x i32]* @reltable.show_color to i64)) to i32)]
define void @show_color(i32 %0) {
%2 = icmp ult i32 %0, 6
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 ([6 x i32]* @reltable.show_color to i8*), i64 %5)
br label %7
7: ; preds = %1, %3
%8 = phi i8* [ %6, %3 ], [ getelementptr inbounds ([7 x i8], [7 x i8]* @.str.6, i64 0, i64 0), %1 ]
%9 = tail call i32 @printf(i8* dereferenceable(1) %8)
ret void
}