#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 magicNumber(int, int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main(int argc, char *argv[]) {
  int n, f;
  printf("n: \n>> ");
  scanf("%d", &n);
  printf("factor: \n>> ");
  scanf("%d", &f);
  if (n > 0 && f > 0) {
    printf("The magic number is: %d\n", magicNumber(n, f));
  } else {
    printf("n and f must be positive and nonzero.\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)
lea    0xeb3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xead(%rip),%rdi
lea    -0x14(%rbp),%rsi
call   1050 <scanf@plt>
lea    0xea0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe8f(%rip),%rdi
lea    -0x18(%rbp),%rsi
call   1050 <scanf@plt>
cmpl   $0x0,-0x14(%rbp)
jle    11b6 <main+0x86>
cmpl   $0x0,-0x18(%rbp)
jle    11b6 <main+0x86>
mov    -0x14(%rbp),%edi
mov    -0x18(%rbp),%esi
call   1040 <magicNumber@plt>
mov    %eax,%esi
lea    0xe6e(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    11c4 <main+0x94>
lea    0xe74(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xeb4(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeae(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1060 <scanf@plt>
lea    0xe9d(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1060 <scanf@plt>
mov    0xc(%rsp),%edi
test   %edi,%edi
jle    11a9 <main+0x69>
mov    0x8(%rsp),%esi
test   %esi,%esi
jle    11a9 <main+0x69>
call   1050 <magicNumber@plt>
lea    0xe7a(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
jmp    11b5 <main+0x75>
lea    0xe81(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [8 x i8] c"n: \0A>> \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [13 x i8] c"factor: \0A>> \00"
@.str.3 = [25 x i8] c"The magic number is: %d\0A\00"
@.str.4 = [39 x i8] c"n and f must be positive and nonzero.\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %6)
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0))
%11 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %7)
%12 = load i32, i32* %6
%13 = icmp sgt i32 %12, 0
br i1 %13, label %14, label %22
14: ; preds = %2
%15 = load i32, i32* %7
%16 = icmp sgt i32 %15, 0
br i1 %16, label %17, label %22
17: ; preds = %14
%18 = load i32, i32* %6
%19 = load i32, i32* %7
%20 = call i32 @magicNumber(i32 %18, i32 %19)
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.3, i64 0, i64 0), i32 %20)
br label %24
22: ; preds = %14, %2
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([39 x i8], [39 x i8]* @.str.4, i64 0, i64 0))
br label %24
24: ; preds = %22, %17
ret i32 0
}

LLVM IR (-O2):
@.str = [8 x i8] c"n: \0A>> \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [13 x i8] c"factor: \0A>> \00"
@.str.3 = [25 x i8] c"The magic number is: %d\0A\00"
@str = [38 x i8] c"n and f must be positive and nonzero.\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca i32
%4 = alloca i32
%5 = bitcast i32* %3 to i8*
%6 = bitcast i32* %4 to i8*
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %3)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %4)
%11 = load i32, i32* %3
%12 = icmp sgt i32 %11, 0
%13 = load i32, i32* %4
%14 = icmp sgt i32 %13, 0
%15 = select i1 %12, i1 %14, i1 false
br i1 %15, label %16, label %19
16: ; preds = %2
%17 = call i32 @magicNumber(i32 %11, i32 %13)
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.3, i64 0, i64 0), i32 %17)
br label %21
19: ; preds = %2
%20 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([38 x i8], [38 x i8]* @str, i64 0, i64 0))
br label %21
21: ; preds = %19, %16
ret i32 0
}