#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*/ factorize(int);
int /*<<< orphan*/ printf(char *);
int main(int argc, char *argv[]) {
  if (argc < 2) {
    printf("Usage: ./factorize N\nPlease input a value to factorize!\n");
    return -1;
  }
  int n = atoi(argv[1]);
  if (n < 2) {
    printf("You must input a value higher than 2\n");
    return -1;
  }
  factorize(n);
  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)
jge    1168 <main+0x38>
lea    0xea9(%rip),%rdi
call   1030 <printf@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    11a9 <main+0x79>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1040 <atoi@plt>
mov    %eax,-0x14(%rbp)
cmpl   $0x2,-0x14(%rbp)
jge    119a <main+0x6a>
lea    0xeb0(%rip),%rdi
call   1030 <printf@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    11a9 <main+0x79>
mov    -0x14(%rbp),%edi
call   1050 <factorize@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
cmp    $0x1,%edi
jg     113f <main+0xf>
lea    0xee8(%rip),%rdi
jmp    1154 <main+0x24>
mov    0x8(%rsi),%rdi
call   1040 <atoi@plt>
cmp    $0x1,%eax
jg     1160 <main+0x30>
lea    0xeac(%rip),%rdi
call   1030 <puts@plt>
mov    $0xffffffff,%eax
pop    %rcx
ret
mov    %eax,%edi
call   1050 <factorize@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [57 x i8] c"Usage: ./factorize N\0APlease input a value to factorize!\0A\00"
@.str.1 = [38 x i8] c"You must input a value higher than 2\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = load i32, i32* %4
%8 = icmp slt i32 %7, 2
br i1 %8, label %9, label %11
9: ; preds = %2
%10 = call i32 @printf(i8* getelementptr inbounds ([57 x i8], [57 x i8]* @.str, i64 0, i64 0))
store i32 -1, i32* %3
br label %23
11: ; preds = %2
%12 = load i8**, i8*** %5
%13 = getelementptr inbounds i8*, i8** %12, i64 1
%14 = load i8*, i8** %13
%15 = call i32 @atoi(i8* %14)
store i32 %15, i32* %6
%16 = load i32, i32* %6
%17 = icmp slt i32 %16, 2
br i1 %17, label %18, label %20
18: ; preds = %11
%19 = call i32 @printf(i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.1, i64 0, i64 0))
store i32 -1, i32* %3
br label %23
20: ; preds = %11
%21 = load i32, i32* %6
%22 = call i32 @factorize(i32 %21)
store i32 0, i32* %3
br label %23
23: ; preds = %20, %18, %9
%24 = load i32, i32* %3
ret i32 %24
}

LLVM IR (-O2):
@str = [37 x i8] c"You must input a value higher than 2\00"
@str.2 = [56 x i8] c"Usage: ./factorize N\0APlease input a value to factorize!\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %4, label %6
4: ; preds = %2
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([56 x i8], [56 x i8]* @str.2, i64 0, i64 0))
br label %15
6: ; preds = %2
%7 = getelementptr inbounds i8*, i8** %1, i64 1
%8 = load i8*, i8** %7
%9 = tail call i32 @atoi(i8* %8)
%10 = icmp slt i32 %9, 2
br i1 %10, label %11, label %13
11: ; preds = %6
%12 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([37 x i8], [37 x i8]* @str, i64 0, i64 0))
br label %15
13: ; preds = %6
%14 = tail call i32 @factorize(i32 %9)
br label %15
15: ; preds = %11, %13, %4
%16 = phi i32 [ -1, %4 ], [ -1, %11 ], [ 0, %13 ]
ret i32 %16
}