#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(int);
int /*<<< orphan*/ printf(char *, ...);
void usage(char *msg) {
  if (msg)
    printf("%s !!!\n", msg);
  printf("Parameters:\n");
  printf("[ -mount <mount> ]         The mount point\n");
  printf("[ -file <name> ]           file to do the test on\n");
  printf(
      "[ -action <create|corrupt|reread> ]      What to do with these files\n");
  exit(-100);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
cmpq   $0x0,-0x8(%rbp)
je     1149 <usage+0x29>
mov    -0x8(%rbp),%rsi
lea    0xebe(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xefa(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    $0xffffff9c,%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %rax
test   %rdi,%rdi
je     1147 <usage+0x17>
mov    %rdi,%rsi
lea    0xec0(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeba(%rip),%rdi
call   1030 <puts@plt>
lea    0xeba(%rip),%rdi
call   1030 <puts@plt>
lea    0xed9(%rip),%rdi
call   1030 <puts@plt>
lea    0xeff(%rip),%rdi
call   1030 <puts@plt>
mov    $0xffffff9c,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [8 x i8] c"%s !!!\0A\00"
@.str.1 = [13 x i8] c"Parameters:\0A\00"
@.str.2 = [44 x i8] c"[ -mount <mount> ] The mount point\0A\00"
@.str.3 = [51 x i8] c"[ -file <name> ] file to do the test on\0A\00"
@.str.4 = [70 x i8] c"[ -action <create|corrupt|reread> ] What to do with these files\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 ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i8* %6)
br label %8
8: ; preds = %5, %1
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str.2, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.3, i64 0, i64 0))
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([70 x i8], [70 x i8]* @.str.4, i64 0, i64 0))
%13 = call i32 @exit(i32 -100)
unreachable
}

LLVM IR (-O2):
@.str = [8 x i8] c"%s !!!\0A\00"
@str = [12 x i8] c"Parameters:\00"
@str.5 = [43 x i8] c"[ -mount <mount> ] The mount point\00"
@str.6 = [50 x i8] c"[ -file <name> ] file to do the test on\00"
@str.7 = [69 x i8] c"[ -action <create|corrupt|reread> ] What to do with these files\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 ([8 x i8], [8 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 ([12 x i8], [12 x i8]* @str, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([43 x i8], [43 x i8]* @str.5, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([50 x i8], [50 x i8]* @str.6, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([69 x i8], [69 x i8]* @str.7, i64 0, i64 0))
%10 = tail call i32 @exit(i32 -100)
unreachable
}