#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 */
float M_PI;
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, float *);
main() {
  float area, raio;
  printf("\n\t*****************\n");
  printf("\t*AREA DO CIRCULO*");
  printf("\n\t*****************\n");
  printf("\nInsira o raio: ");
  scanf("%f", &raio);
  area = M_PI * raio;
  printf("\nArea: %.2f\n", 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    0xed8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xecf(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed2(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    0x2e71(%rip),%rax
movss  (%rax),%xmm0
mulss  -0x8(%rbp),%xmm0
movss  %xmm0,-0x4(%rbp)
movss  -0x4(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xea7(%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    0xef8(%rip),%rbx
mov    %rbx,%rdi
call   1030 <puts@plt>
lea    0xeb5(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
call   1030 <puts@plt>
lea    0xeb2(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeb5(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x2e68(%rip),%rax
movss  (%rax),%xmm0
mulss  0xc(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe92(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [21 x i8] c"\0A\09*****************\0A\00"
@.str.1 = [19 x i8] c"\09*AREA DO CIRCULO*\00"
@.str.2 = [17 x i8] c"\0AInsira o raio: \00"
@.str.3 = [3 x i8] c"%f\00"
@M_PI = global float 0.000000e+00
@.str.4 = [13 x i8] c"\0AArea: %.2f\0A\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0))
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0))
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), float* %2)
%8 = load float, float* @M_PI
%9 = load float, float* %2
%10 = fmul float %8, %9
store float %10, float* %1
%11 = load float, float* %1
%12 = fpext float %11 to double
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.4, i64 0, i64 0), double %12)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [19 x i8] c"\09*AREA DO CIRCULO*\00"
@.str.2 = [17 x i8] c"\0AInsira o raio: \00"
@.str.3 = [3 x i8] c"%f\00"
@M_PI = global float 0.000000e+00
@.str.4 = [13 x i8] c"\0AArea: %.2f\0A\00"
@str.5 = [20 x i8] c"\0A\09*****************\00"
define i32 @main() {
%1 = alloca float
%2 = bitcast float* %1 to i8*
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @str.5, i64 0, i64 0))
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @str.5, i64 0, i64 0))
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), float* %1)
%8 = load float, float* @M_PI
%9 = load float, float* %1
%10 = fmul float %8, %9
%11 = fpext float %10 to double
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.4, i64 0, i64 0), double %11)
ret i32 0
}