#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 atoi(char *);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *);
int /*<<< orphan*/ printf(char *, long);
int /*<<< orphan*/ stderr;
int totient_sum(int);
int main(int argc, char **argv) {
  if (argc != 2) {
    fprintf(stderr, "usage: %s <N>\n", argv[0]);
    return 1;
  }
  int N = atoi(argv[1]);
  if (N <= 0)
    return 1;
  long count = totient_sum(N) - 1;
  printf("%ld\n", count);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
je     1188 <main+0x48>
mov    0x2e79(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rax
mov    (%rax),%rdx
lea    0xe89(%rip),%rsi
call   1050 <fprintf@plt>
movl   $0x1,-0x4(%rbp)
jmp    11d6 <main+0x96>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1060 <atoi@plt>
mov    %eax,-0x14(%rbp)
cmpl   $0x0,-0x14(%rbp)
jg     11ae <main+0x6e>
movl   $0x1,-0x4(%rbp)
jmp    11d6 <main+0x96>
mov    -0x14(%rbp),%edi
call   1040 <totient_sum@plt>
sub    $0x1,%eax
cltq
mov    %rax,-0x20(%rbp)
mov    -0x20(%rbp),%rsi
lea    0xe45(%rip),%rdi
call   1030 <printf@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
cmp    $0x2,%edi
jne    1170 <main+0x30>
mov    0x8(%rsi),%rdi
call   1060 <atoi@plt>
test   %eax,%eax
jle    1188 <main+0x48>
mov    %eax,%edi
call   1040 <totient_sum@plt>
add    $0xffffffff,%eax
movslq %eax,%rsi
lea    0xea8(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret
mov    0x2e69(%rip),%rax
mov    (%rax),%edi
mov    (%rsi),%rdx
lea    0xe7d(%rip),%rsi
call   1050 <fprintf@plt>
mov    $0x1,%eax
pop    %rcx
ret

LLVM IR (-O0):
@stderr = global i32 0
@.str = [15 x i8] c"usage: %s <N>\0A\00"
@.str.1 = [5 x i8] c"%ld\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i64
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = load i32, i32* %4
%9 = icmp ne i32 %8, 2
br i1 %9, label %10, label %16
10: ; preds = %2
%11 = load i32, i32* @stderr
%12 = load i8**, i8*** %5
%13 = getelementptr inbounds i8*, i8** %12, i64 0
%14 = load i8*, i8** %13
%15 = call i32 @fprintf(i32 %11, i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i8* %14)
store i32 1, i32* %3
br label %31
16: ; preds = %2
%17 = load i8**, i8*** %5
%18 = getelementptr inbounds i8*, i8** %17, i64 1
%19 = load i8*, i8** %18
%20 = call i32 @atoi(i8* %19)
store i32 %20, i32* %6
%21 = load i32, i32* %6
%22 = icmp sle i32 %21, 0
br i1 %22, label %23, label %24
23: ; preds = %16
store i32 1, i32* %3
br label %31
24: ; preds = %16
%25 = load i32, i32* %6
%26 = call i32 @totient_sum(i32 %25)
%27 = sub nsw i32 %26, 1
%28 = sext i32 %27 to i64
store i64 %28, i64* %7
%29 = load i64, i64* %7
%30 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i64 %29)
store i32 0, i32* %3
br label %31
31: ; preds = %24, %23, %10
%32 = load i32, i32* %3
ret i32 %32
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [15 x i8] c"usage: %s <N>\0A\00"
@.str.1 = [5 x i8] c"%ld\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 2
br i1 %3, label %8, label %4
4: ; preds = %2
%5 = load i32, i32* @stderr
%6 = load i8*, i8** %1
%7 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i8* %6)
br label %18
8: ; preds = %2
%9 = getelementptr inbounds i8*, i8** %1, i64 1
%10 = load i8*, i8** %9
%11 = tail call i32 @atoi(i8* %10)
%12 = icmp slt i32 %11, 1
br i1 %12, label %18, label %13
13: ; preds = %8
%14 = tail call i32 @totient_sum(i32 %11)
%15 = add nsw i32 %14, -1
%16 = sext i32 %15 to i64
%17 = tail call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i64 %16)
br label %18
18: ; preds = %13, %8, %4
%19 = phi i32 [ 1, %4 ], [ 0, %13 ], [ 1, %8 ]
ret i32 %19
}