#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*/ EXIT_FAILURE;
int /*<<< orphan*/ exit(int /*<<< orphan*/);
int /*<<< orphan*/ printf(char *, ...);
void usage(char *name) {
  printf("Create a child process that executes a shell command in new "
         "namespace(s),\n");
  printf("Usage: %s [OPTIONS] <CMD>\n\n", name);
  printf("    -h, --help           print this help\n");
  printf("    -n, --net            new network namespace\n");
  printf("    -p, --pid            new PID namespace\n");
  printf("    -u, --uts HOSTNAME   new UTS namespace\n");
  printf("    -v, --verbose        more verbose output\n\n");
  printf("    <CMD>                command to be executed\n");
  exit(EXIT_FAILURE);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
lea    0xecd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xf06(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf14(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf30(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf52(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf70(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf8e(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xfaf(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    0x2e39(%rip),%rax
mov    (%rax),%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    %rdi,%rbx
lea    0xee1(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb9(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf0e(%rip),%rdi
call   1030 <puts@plt>
lea    0xf2b(%rip),%rdi
call   1030 <puts@plt>
lea    0xf4e(%rip),%rdi
call   1030 <puts@plt>
lea    0xf6d(%rip),%rdi
call   1030 <puts@plt>
lea    0xf8c(%rip),%rdi
call   1030 <puts@plt>
lea    0xfae(%rip),%rdi
call   1030 <puts@plt>
mov    0x2e40(%rip),%rax
mov    (%rax),%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [75 x i8] c"Create a child process that executes a shell command in new namespace(s),\0A\00"
@.str.1 = [28 x i8] c"Usage: %s [OPTIONS] <CMD>\0A\0A\00"
@.str.2 = [42 x i8] c" -h, --help print this help\0A\00"
@.str.3 = [48 x i8] c" -n, --net new network namespace\0A\00"
@.str.4 = [44 x i8] c" -p, --pid new PID namespace\0A\00"
@.str.5 = [44 x i8] c" -u, --uts HOSTNAME new UTS namespace\0A\00"
@.str.6 = [47 x i8] c" -v, --verbose more verbose output\0A\0A\00"
@.str.7 = [49 x i8] c" <CMD> command to be executed\0A\00"
@EXIT_FAILURE = global i32 0
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([75 x i8], [75 x i8]* @.str, i64 0, i64 0))
%4 = load i8*, i8** %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.1, i64 0, i64 0), i8* %4)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str.4, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str.5, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str.6, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([49 x i8], [49 x i8]* @.str.7, i64 0, i64 0))
%12 = load i32, i32* @EXIT_FAILURE
%13 = call i32 @exit(i32 %12)
unreachable
}

LLVM IR (-O2):
@.str.1 = [28 x i8] c"Usage: %s [OPTIONS] <CMD>\0A\0A\00"
@EXIT_FAILURE = global i32 0
@str = [74 x i8] c"Create a child process that executes a shell command in new namespace(s),\00"
@str.8 = [41 x i8] c" -h, --help print this help\00"
@str.9 = [47 x i8] c" -n, --net new network namespace\00"
@str.10 = [43 x i8] c" -p, --pid new PID namespace\00"
@str.11 = [43 x i8] c" -u, --uts HOSTNAME new UTS namespace\00"
@str.12 = [46 x i8] c" -v, --verbose more verbose output\0A\00"
@str.13 = [48 x i8] c" <CMD> command to be executed\00"
define void @usage(i8* %0) {
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([74 x i8], [74 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([41 x i8], [41 x i8]* @str.8, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.9, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([43 x i8], [43 x i8]* @str.10, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([43 x i8], [43 x i8]* @str.11, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([46 x i8], [46 x i8]* @str.12, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([48 x i8], [48 x i8]* @str.13, i64 0, i64 0))
%10 = load i32, i32* @EXIT_FAILURE
%11 = tail call i32 @exit(i32 %10)
unreachable
}