#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*/ LC_ALL;
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, float *);
int /*<<< orphan*/ setlocale(int /*<<< orphan*/, char *);
int main() {
  setlocale(LC_ALL, "");
  float raio_circulo = 0;
  float area_circulo = 0;
  float pi = 3.141592;
  printf("Insira o raio de um círculo: ");
  scanf("%f", &raio_circulo);
  area_circulo = pi * (raio_circulo * raio_circulo);
  printf("A área do círculo é: %f\n", area_circulo);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    0x2e9a(%rip),%rax
mov    (%rax),%edi
lea    0xef2(%rip),%rsi
call   1040 <setlocale@plt>
xorps  %xmm0,%xmm0
movss  %xmm0,-0x8(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0xc(%rbp)
movss  0xe94(%rip),%xmm0
movss  %xmm0,-0x10(%rbp)
lea    0xe8c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe9d(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
movss  -0x10(%rbp),%xmm0
movss  -0x8(%rbp),%xmm1
mulss  -0x8(%rbp),%xmm1
mulss  %xmm1,%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe6f(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
mov    0x2ea8(%rip),%rax
mov    (%rax),%edi
lea    0xf00(%rip),%rsi
call   1040 <setlocale@plt>
movl   $0x0,0x4(%rsp)
lea    0xeaf(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xec0(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
movss  0x4(%rsp),%xmm0
mulss  %xmm0,%xmm0
mulss  0xe81(%rip),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe9c(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@LC_ALL = global i32 0
@.str = [1 x i8] zeroinitializer
@.str.1 = [31 x i8] c"Insira o raio de um c\C3\ADrculo: \00"
@.str.2 = [3 x i8] c"%f\00"
@.str.3 = [28 x i8] c"A \C3\A1rea do c\C3\ADrculo \C3\A9: %f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
store i32 0, i32* %1
%5 = load i32, i32* @LC_ALL
%6 = call i32 @setlocale(i32 %5, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
store float 0.000000e+00, float* %2
store float 0.000000e+00, float* %3
store float 0x400921FB00000000, float* %4
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.1, 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* %4
%10 = load float, float* %2
%11 = load float, float* %2
%12 = fmul float %10, %11
%13 = fmul float %9, %12
store float %13, float* %3
%14 = load float, float* %3
%15 = fpext float %14 to double
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.3, i64 0, i64 0), double %15)
ret i32 0
}

LLVM IR (-O2):
@LC_ALL = global i32 0
@.str = [1 x i8] zeroinitializer
@.str.1 = [31 x i8] c"Insira o raio de um c\C3\ADrculo: \00"
@.str.2 = [3 x i8] c"%f\00"
@.str.3 = [28 x i8] c"A \C3\A1rea do c\C3\ADrculo \C3\A9: %f\0A\00"
define i32 @main() {
%1 = alloca float
%2 = load i32, i32* @LC_ALL
%3 = tail call i32 @setlocale(i32 %2, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
%4 = bitcast float* %1 to i8*
store float 0.000000e+00, float* %1
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 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 = load float, float* %1
%8 = fmul float %7, %7
%9 = fmul float %8, 0x400921FB00000000
%10 = fpext float %9 to double
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @.str.3, i64 0, i64 0), double %10)
ret i32 0
}