#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 *, ...);
int print_help(char *prog_name) {
  printf("%s [cpsr] [kernelwrite] [kernelread] [kernelexec] [undefined]\n",
         prog_name);
  printf("* cpsr -- try to modify CPSR\n");
  printf("* kernelwrite -- try writing to kernel memory\n");
  printf("* kernelread -- try reading kernel memory\n");
  printf("* kernelexec -- try jumping to kernel memory\n");
  printf("* undefined -- try running undefined instruction\n");
  return 0;
}


x86 assembly (clang, -O0):
<print_help>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rsi
lea    0xed9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf0a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf1a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf3b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf58(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf78(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_help>:
push   %rax
mov    %rdi,%rsi
lea    0xed5(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf06(%rip),%rdi
call   1030 <puts@plt>
lea    0xf17(%rip),%rdi
call   1030 <puts@plt>
lea    0xf39(%rip),%rdi
call   1030 <puts@plt>
lea    0xf57(%rip),%rdi
call   1030 <puts@plt>
lea    0xf78(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [63 x i8] c"%s [cpsr] [kernelwrite] [kernelread] [kernelexec] [undefined]\0A\00"
@.str.1 = [30 x i8] c"* cpsr -- try to modify CPSR\0A\00"
@.str.2 = [47 x i8] c"* kernelwrite -- try writing to kernel memory\0A\00"
@.str.3 = [43 x i8] c"* kernelread -- try reading kernel memory\0A\00"
@.str.4 = [46 x i8] c"* kernelexec -- try jumping to kernel memory\0A\00"
@.str.5 = [50 x i8] c"* undefined -- try running undefined instruction\0A\00"
define i32 @print_help(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i8*, i8** %2
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str, i64 0, i64 0), i8* %3)
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([43 x i8], [43 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str.4, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.5, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [63 x i8] c"%s [cpsr] [kernelwrite] [kernelread] [kernelexec] [undefined]\0A\00"
@str = [29 x i8] c"* cpsr -- try to modify CPSR\00"
@str.6 = [46 x i8] c"* kernelwrite -- try writing to kernel memory\00"
@str.7 = [42 x i8] c"* kernelread -- try reading kernel memory\00"
@str.8 = [45 x i8] c"* kernelexec -- try jumping to kernel memory\00"
@str.9 = [49 x i8] c"* undefined -- try running undefined instruction\00"
define i32 @print_help(i8* %0) {
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([63 x i8], [63 x i8]* @.str, i64 0, i64 0), i8* %0)
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([46 x i8], [46 x i8]* @str.6, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([42 x i8], [42 x i8]* @str.7, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([45 x i8], [45 x i8]* @str.8, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str.9, i64 0, i64 0))
ret i32 0
}