#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 *, char *);
void cpufv_print(int mode) {
  char *str;
  switch (mode) {
  case 0:
    str = "Performance";
    break;
  case 1:
    str = "Normal";
    break;
  case 2:
    str = "Power Save";
    break;
  default:
    str = "Unknown";
    break;
  }
  printf("%s\n", str);
}


x86 assembly (clang, -O0):
<cpufv_print>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    %eax,-0x14(%rbp)
test   %eax,%eax
je     1150 <cpufv_print+0x40>
jmp    112e <cpufv_print+0x1e>
mov    -0x14(%rbp),%eax
sub    $0x1,%eax
je     1160 <cpufv_print+0x50>
jmp    113f <cpufv_print+0x2f>
mov    -0x14(%rbp),%eax
sub    $0x2,%eax
je     1170 <cpufv_print+0x60>
jmp    1180 <cpufv_print+0x70>
lea    0xea9(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    118b <cpufv_print+0x7b>
lea    0xea5(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    118b <cpufv_print+0x7b>
lea    0xe9c(%rip),%rax
mov    %rax,-0x10(%rbp)
jmp    118b <cpufv_print+0x7b>
lea    0xe97(%rip),%rax
mov    %rax,-0x10(%rbp)
mov    -0x10(%rbp),%rsi
lea    0xe90(%rip),%rdi
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<cpufv_print>:
cmp    $0x2,%edi
ja     1132 <cpufv_print+0x22>
movslq %edi,%rax
lea    0xf0d(%rip),%rcx
movslq (%rcx,%rax,4),%rsi
add    %rcx,%rsi
lea    0xef9(%rip),%rdi
jmp    1030 <printf@plt>
lea    0xee5(%rip),%rsi
lea    0xee6(%rip),%rdi
jmp    1030 <printf@plt>

LLVM IR (-O0):
@.str = [12 x i8] c"Performance\00"
@.str.1 = [7 x i8] c"Normal\00"
@.str.2 = [11 x i8] c"Power Save\00"
@.str.3 = [8 x i8] c"Unknown\00"
@.str.4 = [4 x i8] c"%s\0A\00"
define void @cpufv_print(i32 %0) {
%2 = alloca i32
%3 = alloca i8*
store i32 %0, i32* %2
%4 = load i32, i32* %2
switch i32 %4, label %8 [
i32 0, label %5
i32 1, label %6
i32 2, label %7
]
5: ; preds = %1
store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i64 0, i64 0), i8** %3
br label %9
6: ; preds = %1
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8** %3
br label %9
7: ; preds = %1
store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i8** %3
br label %9
8: ; preds = %1
store i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0), i8** %3
br label %9
9: ; preds = %8, %7, %6, %5
%10 = load i8*, i8** %3
%11 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0), i8* %10)
ret void
}

LLVM IR (-O2):
@.str = [12 x i8] c"Performance\00"
@.str.1 = [7 x i8] c"Normal\00"
@.str.2 = [11 x i8] c"Power Save\00"
@.str.3 = [8 x i8] c"Unknown\00"
@.str.4 = [4 x i8] c"%s\0A\00"
@reltable.cpufv_print = [3 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([12 x i8]* @.str to i64), i64 ptrtoint ([3 x i32]* @reltable.cpufv_print to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.1 to i64), i64 ptrtoint ([3 x i32]* @reltable.cpufv_print to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str.2 to i64), i64 ptrtoint ([3 x i32]* @reltable.cpufv_print to i64)) to i32)]
define void @cpufv_print(i32 %0) {
%2 = icmp ult i32 %0, 3
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 ([3 x i32]* @reltable.cpufv_print to i8*), i64 %5)
br label %7
7: ; preds = %1, %3
%8 = phi i8* [ %6, %3 ], [ getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0), %1 ]
%9 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0), i8* %8)
ret void
}