#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 EXIT_SUCCESS;
int /*<<< orphan*/ factorial(int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main(int argc, char **argv) {
  int n;
  printf("\nIntrodueix un nombre entero positivo: ");
  scanf("%d", &n);
  printf("\nEl factorial de %d és: %ld", n, factorial(n));
  return (EXIT_SUCCESS);
}


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   1040 <printf@plt>
lea    0xecd(%rip),%rdi
lea    -0x14(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x14(%rbp),%eax
mov    %eax,-0x18(%rbp)
mov    -0x14(%rbp),%edi
call   1030 <factorial@plt>
mov    -0x18(%rbp),%esi
mov    %eax,%edx
lea    0xead(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    0x2e54(%rip),%rax
mov    (%rax),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xec4(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xede(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1050 <scanf@plt>
mov    0xc(%rsp),%ebx
mov    %ebx,%edi
call   1030 <factorial@plt>
lea    0xec5(%rip),%rdi
mov    %ebx,%esi
mov    %eax,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x2e68(%rip),%rax
mov    (%rax),%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [40 x i8] c"\0AIntrodueix un nombre entero positivo: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [29 x i8] c"\0AEl factorial de %d \C3\A9s: %ld\00"
@EXIT_SUCCESS = global i32 0
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 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([40 x i8], [40 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* %6)
%9 = load i32, i32* %6
%10 = load i32, i32* %6
%11 = call i32 @factorial(i32 %10)
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %9, i32 %11)
%13 = load i32, i32* @EXIT_SUCCESS
ret i32 %13
}

LLVM IR (-O2):
@.str = [40 x i8] c"\0AIntrodueix un nombre entero positivo: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [29 x i8] c"\0AEl factorial de %d \C3\A9s: %ld\00"
@EXIT_SUCCESS = global i32 0
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca i32
%4 = bitcast i32* %3 to i8*
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([40 x i8], [40 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %3)
%7 = load i32, i32* %3
%8 = call i32 @factorial(i32 %7)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %7, i32 %8)
%10 = load i32, i32* @EXIT_SUCCESS
ret i32 %10
}