#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 usage(char *msg) {
  if (msg) {
    printf("%s\n\n", msg);
  }
  printf("USAGE: pfs COMMAND [ARG1 ARG2...] -- [-u USER] [-g GROUP]\n");
  printf("\tUSER\tRun executable with these user permissions\n");
  printf("\tGROUP\tRun executable with these group permissions\n");
  printf("\tCOMMAND\tExecutable to which to expose temporary in-memory "
         "filesystem\n");
  printf("\tARG\tArgs to pass to executable\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
cmpq   $0x0,-0x8(%rbp)
je     1139 <usage+0x29>
mov    -0x8(%rbp),%rsi
lea    0xece(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xef2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf16(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf3c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf75(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rax
test   %rdi,%rdi
je     1137 <usage+0x17>
mov    %rdi,%rsi
lea    0xed0(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec7(%rip),%rdi
call   1030 <puts@plt>
lea    0xef5(%rip),%rdi
call   1030 <puts@plt>
lea    0xf1a(%rip),%rdi
call   1030 <puts@plt>
lea    0xf41(%rip),%rdi
call   1030 <puts@plt>
lea    0xf7b(%rip),%rdi
pop    %rax
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [5 x i8] c"%s\0A\0A\00"
@.str.1 = [59 x i8] c"USAGE: pfs COMMAND [ARG1 ARG2...] -- [-u USER] [-g GROUP]\0A\00"
@.str.2 = [50 x i8] c"\09USER\09Run executable with these user permissions\0A\00"
@.str.3 = [52 x i8] c"\09GROUP\09Run executable with these group permissions\0A\00"
@.str.4 = [71 x i8] c"\09COMMAND\09Executable to which to expose temporary in-memory filesystem\0A\00"
@.str.5 = [33 x i8] c"\09ARG\09Args to pass to executable\0A\00"
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i8*, i8** %2
%4 = icmp ne i8* %3, null
br i1 %4, label %5, label %8
5: ; preds = %1
%6 = load i8*, i8** %2
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i8* %6)
br label %8
8: ; preds = %5, %1
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([59 x i8], [59 x i8]* @.str.1, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.2, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.3, i64 0, i64 0))
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([71 x i8], [71 x i8]* @.str.4, i64 0, i64 0))
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.5, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str = [5 x i8] c"%s\0A\0A\00"
@str = [58 x i8] c"USAGE: pfs COMMAND [ARG1 ARG2...] -- [-u USER] [-g GROUP]\00"
@str.6 = [49 x i8] c"\09USER\09Run executable with these user permissions\00"
@str.7 = [51 x i8] c"\09GROUP\09Run executable with these group permissions\00"
@str.8 = [70 x i8] c"\09COMMAND\09Executable to which to expose temporary in-memory filesystem\00"
@str.9 = [32 x i8] c"\09ARG\09Args to pass to executable\00"
define void @usage(i8* %0) {
%2 = icmp eq i8* %0, null
br i1 %2, label %5, label %3
3: ; preds = %1
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i8* %0)
br label %5
5: ; preds = %3, %1
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([58 x i8], [58 x i8]* @str, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str.6, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 x i8]* @str.7, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([70 x i8], [70 x i8]* @str.8, i64 0, i64 0))
%10 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str.9, i64 0, i64 0))
ret void
}