#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*/ check_execve();
int /*<<< orphan*/ check_stat();
int /*<<< orphan*/ check_writev();
int /*<<< orphan*/ puts(char *);
int main(void) {
  puts(":echo "
       "--a94e2gfwdd--");
  ;
  check_stat();
  check_execve();
  check_writev();
  puts("\n"
       "--a94e2gfwdd--");
  puts("$success");
  puts("$shudown");
  while (1)
    ;
  ;
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeaa(%rip),%rdi
call   1040 <puts@plt>
mov    $0x0,%al
call   1060 <check_stat@plt>
mov    $0x0,%al
call   1030 <check_execve@plt>
mov    $0x0,%al
call   1050 <check_writev@plt>
lea    0xe9e(%rip),%rdi
call   1040 <puts@plt>
lea    0xea2(%rip),%rdi
call   1040 <puts@plt>
lea    0xe9f(%rip),%rdi
call   1040 <puts@plt>
jmp    1194 <main+0x54>

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xeb8(%rip),%rdi
call   1040 <puts@plt>
xor    %eax,%eax
call   1060 <check_stat@plt>
xor    %eax,%eax
call   1030 <check_execve@plt>
xor    %eax,%eax
call   1050 <check_writev@plt>
lea    0xeac(%rip),%rdi
call   1040 <puts@plt>
lea    0xeb0(%rip),%rdi
call   1040 <puts@plt>
lea    0xead(%rip),%rdi
call   1040 <puts@plt>
cs nopw 0x0(%rax,%rax,1)
jmp    1190 <main+0x50>

LLVM IR (-O0):
@.str = [21 x i8] c":echo --a94e2gfwdd--\00"
@.str.1 = [16 x i8] c"\0A--a94e2gfwdd--\00"
@.str.2 = [9 x i8] c"$success\00"
@.str.3 = [9 x i8] c"$shudown\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 @puts(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0))
%3 = call i32 (...) @check_stat()
%4 = call i32 (...) @check_execve()
%5 = call i32 (...) @check_writev()
%6 = call i32 @puts(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0))
%7 = call i32 @puts(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 @puts(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0))
br label %9
9: ; preds = %0, %9
br label %9
}

LLVM IR (-O2):
@.str = [21 x i8] c":echo --a94e2gfwdd--\00"
@.str.1 = [16 x i8] c"\0A--a94e2gfwdd--\00"
@.str.2 = [9 x i8] c"$success\00"
@.str.3 = [9 x i8] c"$shudown\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0))
%2 = tail call i32 (...) @check_stat()
%3 = tail call i32 (...) @check_execve()
%4 = tail call i32 (...) @check_writev()
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0))
br label %8
8: ; preds = %0, %8
br label %8
}