#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 PrintUsage(char *name) {
  printf("Usage:\n");
  printf("01. %s r32 <address> [num]              ---- read the val(u32) from "
         "kernel address\n",
         name);
  printf("02. %s w32 <address> <value> [num]      ---- write the val(u32) to "
         "kernel address\n",
         name);
  printf("03. %s r16 <address> [num]              ---- read the val(u16) from "
         "kernel address\n",
         name);
  printf("04. %s w16 <address> <value> [num]      ---- write the val(u16) to "
         "kernel address\n",
         name);
  printf("05. %s r8 <address> [num]               ---- read the val(u8) from "
         "kernel address\n",
         name);
  printf("06. %s w8 <address> <value> [num]       ---- write the val(u8) to "
         "kernel address\n",
         name);
  printf("07. %s dr8 <address> [num]               ---- read the val(u8) from "
         "address\n",
         name);
  printf("08. %s dw8 <address> <value> [num]       ---- write the val(u8) to "
         "address\n",
         name);
  printf("09. %s v                                ---- see the version\n",
         name);
}


x86 assembly (clang, -O0):
<PrintUsage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
lea    0xedd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xed3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xf15(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xf56(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xf98(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xfd9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0x101a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0x105a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0x1095(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0x10cf(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<PrintUsage>:
push   %rbx
mov    %rdi,%rbx
lea    0x119f(%rip),%rdi
call   1030 <puts@plt>
lea    0xec9(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf0c(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf4e(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf91(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xfd3(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x1015(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x1056(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x1092(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x10cd(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
pop    %rbx
jmp    1040 <printf@plt>

LLVM IR (-O0):
@.str = [8 x i8] c"Usage:\0A\00"
@.str.1 = [84 x i8] c"01. %s r32 <address> [num] ---- read the val(u32) from kernel address\0A\00"
@.str.2 = [83 x i8] c"02. %s w32 <address> <value> [num] ---- write the val(u32) to kernel address\0A\00"
@.str.3 = [84 x i8] c"03. %s r16 <address> [num] ---- read the val(u16) from kernel address\0A\00"
@.str.4 = [83 x i8] c"04. %s w16 <address> <value> [num] ---- write the val(u16) to kernel address\0A\00"
@.str.5 = [83 x i8] c"05. %s r8 <address> [num] ---- read the val(u8) from kernel address\0A\00"
@.str.6 = [82 x i8] c"06. %s w8 <address> <value> [num] ---- write the val(u8) to kernel address\0A\00"
@.str.7 = [77 x i8] c"07. %s dr8 <address> [num] ---- read the val(u8) from address\0A\00"
@.str.8 = [76 x i8] c"08. %s dw8 <address> <value> [num] ---- write the val(u8) to address\0A\00"
@.str.9 = [62 x i8] c"09. %s v ---- see the version\0A\00"
define void @PrintUsage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%4 = load i8*, i8** %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([84 x i8], [84 x i8]* @.str.1, i64 0, i64 0), i8* %4)
%6 = load i8*, i8** %2
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([83 x i8], [83 x i8]* @.str.2, i64 0, i64 0), i8* %6)
%8 = load i8*, i8** %2
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([84 x i8], [84 x i8]* @.str.3, i64 0, i64 0), i8* %8)
%10 = load i8*, i8** %2
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([83 x i8], [83 x i8]* @.str.4, i64 0, i64 0), i8* %10)
%12 = load i8*, i8** %2
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([83 x i8], [83 x i8]* @.str.5, i64 0, i64 0), i8* %12)
%14 = load i8*, i8** %2
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([82 x i8], [82 x i8]* @.str.6, i64 0, i64 0), i8* %14)
%16 = load i8*, i8** %2
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([77 x i8], [77 x i8]* @.str.7, i64 0, i64 0), i8* %16)
%18 = load i8*, i8** %2
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([76 x i8], [76 x i8]* @.str.8, i64 0, i64 0), i8* %18)
%20 = load i8*, i8** %2
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([62 x i8], [62 x i8]* @.str.9, i64 0, i64 0), i8* %20)
ret void
}

LLVM IR (-O2):
@.str.1 = [84 x i8] c"01. %s r32 <address> [num] ---- read the val(u32) from kernel address\0A\00"
@.str.2 = [83 x i8] c"02. %s w32 <address> <value> [num] ---- write the val(u32) to kernel address\0A\00"
@.str.3 = [84 x i8] c"03. %s r16 <address> [num] ---- read the val(u16) from kernel address\0A\00"
@.str.4 = [83 x i8] c"04. %s w16 <address> <value> [num] ---- write the val(u16) to kernel address\0A\00"
@.str.5 = [83 x i8] c"05. %s r8 <address> [num] ---- read the val(u8) from kernel address\0A\00"
@.str.6 = [82 x i8] c"06. %s w8 <address> <value> [num] ---- write the val(u8) to kernel address\0A\00"
@.str.7 = [77 x i8] c"07. %s dr8 <address> [num] ---- read the val(u8) from address\0A\00"
@.str.8 = [76 x i8] c"08. %s dw8 <address> <value> [num] ---- write the val(u8) to address\0A\00"
@.str.9 = [62 x i8] c"09. %s v ---- see the version\0A\00"
@str = [7 x i8] c"Usage:\00"
define void @PrintUsage(i8* %0) {
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([84 x i8], [84 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([83 x i8], [83 x i8]* @.str.2, i64 0, i64 0), i8* %0)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([84 x i8], [84 x i8]* @.str.3, i64 0, i64 0), i8* %0)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([83 x i8], [83 x i8]* @.str.4, i64 0, i64 0), i8* %0)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([83 x i8], [83 x i8]* @.str.5, i64 0, i64 0), i8* %0)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([82 x i8], [82 x i8]* @.str.6, i64 0, i64 0), i8* %0)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([77 x i8], [77 x i8]* @.str.7, i64 0, i64 0), i8* %0)
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([76 x i8], [76 x i8]* @.str.8, i64 0, i64 0), i8* %0)
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([62 x i8], [62 x i8]* @.str.9, i64 0, i64 0), i8* %0)
ret void
}