#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*/ fprintf(int /*<<< orphan*/, char *);
int /*<<< orphan*/ stdout;
void help() {
  fprintf(stdout, "Usage: ./pmemwreck [options] /dev/dax0.0\n");
  fprintf(stdout, "\nDescription:\n   utilities for changed pmem contents\n");
  fprintf(stdout, "\nOptions\n");
  fprintf(stdout,
          "   -4  iterate every 4KiB block, XOR'ing first byte per block\n");
  fprintf(stdout,
          "   -a  every 4KiB block, changed first 8-mer ASCII string\n");
}


x86 assembly (clang, -O0):
<help>:
push   %rbp
mov    %rsp,%rbp
mov    0x2ec5(%rip),%rax
mov    (%rax),%edi
lea    0xedc(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2eb0(%rip),%rax
mov    (%rax),%edi
lea    0xef1(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e9b(%rip),%rax
mov    (%rax),%edi
lea    0xf12(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e86(%rip),%rax
mov    (%rax),%edi
lea    0xf07(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e71(%rip),%rax
mov    (%rax),%edi
lea    0xf31(%rip),%rsi
call   1030 <fprintf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<help>:
push   %rbx
mov    0x2ec8(%rip),%rbx
mov    (%rbx),%edi
lea    0xedf(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xefb(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf23(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf1f(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf50(%rip),%rsi
pop    %rbx
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stdout = global i32 0
@.str = [42 x i8] c"Usage: ./pmemwreck [options] /dev/dax0.0\0A\00"
@.str.1 = [54 x i8] c"\0ADescription:\0A utilities for changed pmem contents\0A\00"
@.str.2 = [10 x i8] c"\0AOptions\0A\00"
@.str.3 = [63 x i8] c" -4 iterate every 4KiB block, XOR'ing first byte per block\0A\00"
@.str.4 = [59 x i8] c" -a every 4KiB block, changed first 8-mer ASCII string\0A\00"
define void @help() {
%1 = load i32, i32* @stdout
%2 = call i32 @fprintf(i32 %1, i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str, i64 0, i64 0))
%3 = load i32, i32* @stdout
%4 = call i32 @fprintf(i32 %3, i8* getelementptr inbounds ([54 x i8], [54 x i8]* @.str.1, i64 0, i64 0))
%5 = load i32, i32* @stdout
%6 = call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.2, i64 0, i64 0))
%7 = load i32, i32* @stdout
%8 = call i32 @fprintf(i32 %7, i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.3, i64 0, i64 0))
%9 = load i32, i32* @stdout
%10 = call i32 @fprintf(i32 %9, i8* getelementptr inbounds ([59 x i8], [59 x i8]* @.str.4, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@stdout = global i32 0
@.str = [42 x i8] c"Usage: ./pmemwreck [options] /dev/dax0.0\0A\00"
@.str.1 = [54 x i8] c"\0ADescription:\0A utilities for changed pmem contents\0A\00"
@.str.2 = [10 x i8] c"\0AOptions\0A\00"
@.str.3 = [63 x i8] c" -4 iterate every 4KiB block, XOR'ing first byte per block\0A\00"
@.str.4 = [59 x i8] c" -a every 4KiB block, changed first 8-mer ASCII string\0A\00"
define void @help() {
%1 = load i32, i32* @stdout
%2 = tail call i32 @fprintf(i32 %1, i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str, i64 0, i64 0))
%3 = load i32, i32* @stdout
%4 = tail call i32 @fprintf(i32 %3, i8* getelementptr inbounds ([54 x i8], [54 x i8]* @.str.1, i64 0, i64 0))
%5 = load i32, i32* @stdout
%6 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.2, i64 0, i64 0))
%7 = load i32, i32* @stdout
%8 = tail call i32 @fprintf(i32 %7, i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.3, i64 0, i64 0))
%9 = load i32, i32* @stdout
%10 = tail call i32 @fprintf(i32 %9, i8* getelementptr inbounds ([59 x i8], [59 x i8]* @.str.4, i64 0, i64 0))
ret void
}