#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 */
typedef int /*<<< orphan*/ FILE;

/* Variables and functions */
int /*<<< orphan*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *fopen(char *, char *);
int /*<<< orphan*/ fputs(char *, int /*<<< orphan*/ *);
int /*<<< orphan*/ printf(char *);
int main(void) {
  FILE *f;
  f = fopen("./directorio/p1", "a");
  if (f != NULL) {
    fputs("Tengo acceso de escritura\n", f);
    fclose(f);
  } else {
    printf("ERROR: NO SE PUDO ABRIR EL FICHERO!!\n");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeaa(%rip),%rdi
lea    0xeb3(%rip),%rsi
call   1060 <fopen@plt>
mov    %rax,-0x10(%rbp)
cmpq   $0x0,-0x10(%rbp)
je     118f <main+0x4f>
mov    -0x10(%rbp),%rsi
lea    0xe96(%rip),%rdi
call   1050 <fputs@plt>
mov    -0x10(%rbp),%rdi
call   1030 <fclose@plt>
jmp    119b <main+0x5b>
lea    0xe97(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xeb8(%rip),%rdi
lea    0xec1(%rip),%rsi
call   1050 <fopen@plt>
test   %rax,%rax
je     117f <main+0x3f>
mov    %rax,%rbx
lea    0xeaf(%rip),%rdi
mov    $0x1a,%esi
mov    $0x1,%edx
mov    %rax,%rcx
call   1060 <fwrite@plt>
mov    %rbx,%rdi
call   1040 <fclose@plt>
jmp    118b <main+0x4b>
lea    0xea7(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [16 x i8] c"./directorio/p1\00"
@.str.1 = [2 x i8] c"a\00"
@.str.2 = [27 x i8] c"Tengo acceso de escritura\0A\00"
@.str.3 = [38 x i8] c"ERROR: NO SE PUDO ABRIR EL FICHERO!!\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32*
store i32 0, i32* %1
%3 = call i32* @fopen(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
store i32* %3, i32** %2
%4 = load i32*, i32** %2
%5 = icmp ne i32* %4, null
br i1 %5, label %6, label %11
6: ; preds = %0
%7 = load i32*, i32** %2
%8 = call i32 @fputs(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str.2, i64 0, i64 0), i32* %7)
%9 = load i32*, i32** %2
%10 = call i32 @fclose(i32* %9)
br label %13
11: ; preds = %0
%12 = call i32 @printf(i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.3, i64 0, i64 0))
br label %13
13: ; preds = %11, %6
ret i32 0
}

LLVM IR (-O2):
@.str = [16 x i8] c"./directorio/p1\00"
@.str.1 = [2 x i8] c"a\00"
@.str.2 = [27 x i8] c"Tengo acceso de escritura\0A\00"
@str = [37 x i8] c"ERROR: NO SE PUDO ABRIR EL FICHERO!!\00"
define i32 @main() {
%1 = tail call i32* @fopen(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%2 = icmp eq i32* %1, null
br i1 %2, label %6, label %3
3: ; preds = %0
%4 = tail call i64 @fwrite(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str.2, i64 0, i64 0), i64 26, i64 1, i32* %1)
%5 = tail call i32 @fclose(i32* %1)
br label %8
6: ; preds = %0
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([37 x i8], [37 x i8]* @str, i64 0, i64 0))
br label %8
8: ; preds = %6, %3
ret i32 0
}