#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 /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, float *);
int main() {
  float nota1, nota2, nota3, nota4;
  printf("Nota 1: ");
  scanf("%f", &nota1);
  printf("Nota 2: ");
  scanf("%f", &nota2);
  printf("Nota 3: ");
  scanf("%f", &nota3);
  printf("Nota 4: ");
  scanf("%f", &nota4);
  printf("Media artmetica: %.1f\n", (nota1 + nota2 + nota3 + nota4) / 4);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xece(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec9(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xebc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeab(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xea7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe8d(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xe92(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe6f(%rip),%rdi
lea    -0x14(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
addss  -0xc(%rbp),%xmm0
addss  -0x10(%rbp),%xmm0
addss  -0x14(%rbp),%xmm0
movss  0xe3d(%rip),%xmm1
divss  %xmm1,%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe59(%rip),%rdi
mov    $0x1,%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    0xed8(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xed3(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0xec2(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0xeb0(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0x4(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0xe9e(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %rsp,%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
movss  0xc(%rsp),%xmm0
addss  0x8(%rsp),%xmm0
addss  0x4(%rsp),%xmm0
addss  (%rsp),%xmm0
mulss  0xe4b(%rip),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe6b(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [9 x i8] c"Nota 1: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [9 x i8] c"Nota 2: \00"
@.str.3 = [9 x i8] c"Nota 3: \00"
@.str.4 = [9 x i8] c"Nota 4: \00"
@.str.5 = [23 x i8] c"Media artmetica: %.1f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
%5 = alloca float
store i32 0, i32* %1
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %3)
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0))
%11 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %4)
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%13 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %5)
%14 = load float, float* %2
%15 = load float, float* %3
%16 = fadd float %14, %15
%17 = load float, float* %4
%18 = fadd float %16, %17
%19 = load float, float* %5
%20 = fadd float %18, %19
%21 = fdiv float %20, 4.000000e+00
%22 = fpext float %21 to double
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.5, i64 0, i64 0), double %22)
ret i32 0
}

LLVM IR (-O2):
@.str = [9 x i8] c"Nota 1: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [9 x i8] c"Nota 2: \00"
@.str.3 = [9 x i8] c"Nota 3: \00"
@.str.4 = [9 x i8] c"Nota 4: \00"
@.str.5 = [23 x i8] c"Media artmetica: %.1f\0A\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = alloca float
%4 = alloca float
%5 = bitcast float* %1 to i8*
%6 = bitcast float* %2 to i8*
%7 = bitcast float* %3 to i8*
%8 = bitcast float* %4 to i8*
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %1)
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0))
%12 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0))
%14 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %3)
%15 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%16 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %4)
%17 = load float, float* %1
%18 = load float, float* %2
%19 = fadd float %17, %18
%20 = load float, float* %3
%21 = fadd float %19, %20
%22 = load float, float* %4
%23 = fadd float %21, %22
%24 = fmul float %23, 2.500000e-01
%25 = fpext float %24 to double
%26 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([23 x i8], [23 x i8]* @.str.5, i64 0, i64 0), double %25)
ret i32 0
}