#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*/ exit(int);
int /*<<< orphan*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *fopen(char *, char *);
double media_t(int /*<<< orphan*/ *);
int /*<<< orphan*/ printf(char *, ...);
int main(void) {
  FILE *arq;
  arq = fopen("Notas.txt", "r");
  if (arq == NULL) {
    printf("Erro na abertura do arquivo\n");
    exit(1);
  }
  printf("O resultado é %.1f\n", media_t(arq));
  fclose(arq);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xe9a(%rip),%rdi
lea    0xe9d(%rip),%rsi
call   1060 <fopen@plt>
mov    %rax,-0x10(%rbp)
cmpq   $0x0,-0x10(%rbp)
jne    1199 <main+0x49>
lea    0xe84(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    $0x1,%edi
call   1070 <exit@plt>
mov    -0x10(%rbp),%rdi
call   1050 <media_t@plt>
lea    0xe80(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
mov    -0x10(%rbp),%rdi
call   1030 <fclose@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xe98(%rip),%rdi
lea    0xe9b(%rip),%rsi
call   1070 <fopen@plt>
test   %rax,%rax
je     119e <main+0x3e>
mov    %rax,%rbx
mov    %rax,%rdi
call   1060 <media_t@plt>
lea    0xe81(%rip),%rdi
mov    $0x1,%al
call   1050 <printf@plt>
mov    %rbx,%rdi
call   1040 <fclose@plt>
xor    %eax,%eax
pop    %rbx
ret
lea    0xe7c(%rip),%rdi
call   1030 <puts@plt>
mov    $0x1,%edi
call   1080 <exit@plt>

LLVM IR (-O0):
@.str = [10 x i8] c"Notas.txt\00"
@.str.1 = [2 x i8] c"r\00"
@.str.2 = [29 x i8] c"Erro na abertura do arquivo\0A\00"
@.str.3 = [21 x i8] c"O resultado \C3\A9 %.1f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32*
store i32 0, i32* %1
%3 = call i32* @fopen(i8* getelementptr inbounds ([10 x i8], [10 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 eq i32* %4, null
br i1 %5, label %6, label %9
6: ; preds = %0
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 @exit(i32 1)
unreachable
9: ; preds = %0
%10 = load i32*, i32** %2
%11 = call double @media_t(i32* %10)
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.3, i64 0, i64 0), double %11)
%13 = load i32*, i32** %2
%14 = call i32 @fclose(i32* %13)
ret i32 0
}

LLVM IR (-O2):
@.str = [10 x i8] c"Notas.txt\00"
@.str.1 = [2 x i8] c"r\00"
@.str.3 = [21 x i8] c"O resultado \C3\A9 %.1f\0A\00"
@str = [28 x i8] c"Erro na abertura do arquivo\00"
define i32 @main() {
%1 = tail call i32* @fopen(i8* getelementptr inbounds ([10 x i8], [10 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 %3, label %6
3: ; preds = %0
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @str, i64 0, i64 0))
%5 = tail call i32 @exit(i32 1)
unreachable
6: ; preds = %0
%7 = tail call double @media_t(i32* %1)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @.str.3, i64 0, i64 0), double %7)
%9 = tail call i32 @fclose(i32* %1)
ret i32 0
}