#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(void) {
  printf("\n");
  printf("Usage error!\n");
  printf("Usage: atomic_writer -n <number of integers to write> -i <number of "
         "iterations for writer>\n");
  printf(
      "       Note**The number of integers for option n has to be positive\n");
  printf(
      "       Note**The number of integers for option i has to be positive\n");
  printf("\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
lea    0xef1(%rip),%rdi
call   1030 <printf@plt>
lea    0xed9(%rip),%rdi
call   1030 <printf@plt>
lea    0xedb(%rip),%rdi
call   1030 <printf@plt>
lea    0xf2b(%rip),%rdi
call   1030 <printf@plt>
lea    0xf64(%rip),%rdi
call   1030 <printf@plt>
lea    0xeb5(%rip),%rdi
call   1030 <printf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rax
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0xece(%rip),%rdi
call   1040 <puts@plt>
lea    0xecf(%rip),%rdi
call   1040 <puts@plt>
lea    0xf1e(%rip),%rdi
call   1040 <puts@plt>
lea    0xf56(%rip),%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
pop    %rax
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [2 x i8] c"\0A\00"
@.str.1 = [14 x i8] c"Usage error!\0A\00"
@.str.2 = [92 x i8] c"Usage: atomic_writer -n <number of integers to write> -i <number of iterations for writer>\0A\00"
@.str.3 = [69 x i8] c" Note**The number of integers for option n has to be positive\0A\00"
@.str.4 = [69 x i8] c" Note**The number of integers for option i has to be positive\0A\00"
define void @usage() {
%1 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([92 x i8], [92 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([69 x i8], [69 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([69 x i8], [69 x i8]* @.str.4, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@str = [13 x i8] c"Usage error!\00"
@str.5 = [91 x i8] c"Usage: atomic_writer -n <number of integers to write> -i <number of iterations for writer>\00"
@str.6 = [68 x i8] c" Note**The number of integers for option n has to be positive\00"
@str.7 = [68 x i8] c" Note**The number of integers for option i has to be positive\00"
define void @usage() {
%1 = tail call i32 @putchar(i32 10)
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([91 x i8], [91 x i8]* @str.5, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([68 x i8], [68 x i8]* @str.6, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([68 x i8], [68 x i8]* @str.7, i64 0, i64 0))
%6 = tail call i32 @putchar(i32 10)
ret void
}