#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 *);
main() {
  float altura, base, area;
  printf(" \n [-- Calculando area de um retangulo --] \n");
  printf("\nPor favor, digite a altura: ");
  scanf("%f", &altura);
  printf("\nPor favor, digite a base: ");
  scanf("%f", &base);
  area = (float)altura * base;
  printf("\nA area do retangulo e: %2.1f", area);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xed1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xef0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf00(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xef3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee2(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x4(%rbp),%xmm0
mulss  -0x8(%rbp),%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xed9(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xf1f(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb8(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec8(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0xeb7(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
movss  0xc(%rsp),%xmm0
mulss  0x8(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xea8(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [45 x i8] c" \0A [-- Calculando area de um retangulo --] \0A\00"
@.str.1 = [30 x i8] c"\0APor favor, digite a altura: \00"
@.str.2 = [3 x i8] c"%f\00"
@.str.3 = [28 x i8] c"\0APor favor, digite a base: \00"
@.str.4 = [30 x i8] c"\0AA area do retangulo e: %2.1f\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = alloca float
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([45 x i8], [45 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), float* %1)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), float* %2)
%9 = load float, float* %1
%10 = load float, float* %2
%11 = fmul float %9, %10
store float %11, float* %3
%12 = load float, float* %3
%13 = fpext float %12 to double
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str.4, i64 0, i64 0), double %13)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [30 x i8] c"\0APor favor, digite a altura: \00"
@.str.2 = [3 x i8] c"%f\00"
@.str.3 = [28 x i8] c"\0APor favor, digite a base: \00"
@.str.4 = [30 x i8] c"\0AA area do retangulo e: %2.1f\00"
@str = [44 x i8] c" \0A [-- Calculando area de um retangulo --] \00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = bitcast float* %1 to i8*
%4 = bitcast float* %2 to i8*
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([44 x i8], [44 x i8]* @str, i64 0, i64 0))
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([30 x i8], [30 x i8]* @.str.1, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), float* %1)
%8 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @.str.3, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), float* %2)
%10 = load float, float* %1
%11 = load float, float* %2
%12 = fmul float %10, %11
%13 = fpext float %12 to double
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([30 x i8], [30 x i8]* @.str.4, i64 0, i64 0), double %13)
ret i32 0
}