#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*/ VIM_SIF_I2cWriteByte(int, int);
void SensorSetBrightness_MC501CB(unsigned char val) {
  switch (val) {
  case 1:
    VIM_SIF_I2cWriteByte(0x03, 0x01);
    VIM_SIF_I2cWriteByte(0x19, 0xa0);
    break;
  case 2:
    VIM_SIF_I2cWriteByte(0x03, 0x01);
    VIM_SIF_I2cWriteByte(0x19, 0x90);
    break;
  case 3:
    VIM_SIF_I2cWriteByte(0x03, 0x01);
    VIM_SIF_I2cWriteByte(0x19, 0x00);
    break;
  case 4:
    VIM_SIF_I2cWriteByte(0x03, 0x01);
    VIM_SIF_I2cWriteByte(0x19, 0x10);
    break;
  case 5:
    VIM_SIF_I2cWriteByte(0x03, 0x01);
    VIM_SIF_I2cWriteByte(0x19, 0x20);
    break;
  default:
    break;
  }
}


x86 assembly (clang, -O0):
<SensorSetBrightness_MC501CB>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %dil,%al
mov    %al,-0x1(%rbp)
movzbl -0x1(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,%ecx
mov    %rcx,-0x10(%rbp)
sub    $0x4,%eax
ja     11f4 <SensorSetBrightness_MC501CB+0xe4>
mov    -0x10(%rbp),%rax
lea    0xec1(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
mov    $0x3,%edi
mov    $0x1,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
mov    $0x19,%edi
mov    $0xa0,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
jmp    11f9 <SensorSetBrightness_MC501CB+0xe9>
mov    $0x3,%edi
mov    $0x1,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
mov    $0x19,%edi
mov    $0x90,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
jmp    11f9 <SensorSetBrightness_MC501CB+0xe9>
mov    $0x3,%edi
mov    $0x1,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
mov    $0x19,%edi
xor    %esi,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
jmp    11f9 <SensorSetBrightness_MC501CB+0xe9>
mov    $0x3,%edi
mov    $0x1,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
mov    $0x19,%edi
mov    $0x10,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
jmp    11f9 <SensorSetBrightness_MC501CB+0xe9>
mov    $0x3,%edi
mov    $0x1,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
mov    $0x19,%edi
mov    $0x20,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
jmp    11f9 <SensorSetBrightness_MC501CB+0xe9>
jmp    11f9 <SensorSetBrightness_MC501CB+0xe9>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<SensorSetBrightness_MC501CB>:
add    $0xff,%dil
cmp    $0x4,%dil
ja     1145 <SensorSetBrightness_MC501CB+0x35>
push   %rbx
movsbq %dil,%rax
lea    0xeda(%rip),%rcx
mov    (%rcx,%rax,4),%ebx
mov    $0x3,%edi
mov    $0x1,%esi
call   1030 <VIM_SIF_I2cWriteByte@plt>
mov    $0x19,%edi
mov    %ebx,%esi
pop    %rbx
jmp    1030 <VIM_SIF_I2cWriteByte@plt>
ret

LLVM IR (-O0):
define void @SensorSetBrightness_MC501CB(i8 zeroext %0) {
%2 = alloca i8
store i8 %0, i8* %2
%3 = load i8, i8* %2
%4 = zext i8 %3 to i32
switch i32 %4, label %20 [
i32 1, label %5
i32 2, label %8
i32 3, label %11
i32 4, label %14
i32 5, label %17
]
5: ; preds = %1
%6 = call i32 @VIM_SIF_I2cWriteByte(i32 3, i32 1)
%7 = call i32 @VIM_SIF_I2cWriteByte(i32 25, i32 160)
br label %21
8: ; preds = %1
%9 = call i32 @VIM_SIF_I2cWriteByte(i32 3, i32 1)
%10 = call i32 @VIM_SIF_I2cWriteByte(i32 25, i32 144)
br label %21
11: ; preds = %1
%12 = call i32 @VIM_SIF_I2cWriteByte(i32 3, i32 1)
%13 = call i32 @VIM_SIF_I2cWriteByte(i32 25, i32 0)
br label %21
14: ; preds = %1
%15 = call i32 @VIM_SIF_I2cWriteByte(i32 3, i32 1)
%16 = call i32 @VIM_SIF_I2cWriteByte(i32 25, i32 16)
br label %21
17: ; preds = %1
%18 = call i32 @VIM_SIF_I2cWriteByte(i32 3, i32 1)
%19 = call i32 @VIM_SIF_I2cWriteByte(i32 25, i32 32)
br label %21
20: ; preds = %1
br label %21
21: ; preds = %20, %17, %14, %11, %8, %5
ret void
}

LLVM IR (-O2):
@switch.table.SensorSetBrightness_MC501CB = [5 x i32] [i32 160, i32 144, i32 0, i32 16, i32 32]
define void @SensorSetBrightness_MC501CB(i8 zeroext %0) {
%2 = add i8 %0, -1
%3 = icmp ult i8 %2, 5
br i1 %3, label %4, label %10
4: ; preds = %1
%5 = sext i8 %2 to i64
%6 = getelementptr inbounds [5 x i32], [5 x i32]* @switch.table.SensorSetBrightness_MC501CB, i64 0, i64 %5
%7 = load i32, i32* %6
%8 = tail call i32 @VIM_SIF_I2cWriteByte(i32 3, i32 1)
%9 = tail call i32 @VIM_SIF_I2cWriteByte(i32 25, i32 %7)
br label %10
10: ; preds = %1, %4
ret void
}