#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 /*<<< orphan*/ system(char *);
main() {
  float cotacao, valor_real, valor_dolar;
  cotacao = 3.7;
  printf("Digite uma quantia em dolar (U$): ");
  scanf("%f", &valor_dolar);
  valor_real = valor_dolar * cotacao;
  printf("U$ %.2f convertidos para real sao equivalentes a R$ %.2f.\n",
         valor_dolar, valor_real);
  system("pause");
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movss  0xec0(%rip),%xmm0
movss  %xmm0,-0x4(%rbp)
lea    0xeb8(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xecd(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1050 <scanf@plt>
movss  -0xc(%rbp),%xmm0
mulss  -0x4(%rbp),%xmm0
movss  %xmm0,-0x8(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x8(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe9f(%rip),%rdi
mov    $0x2,%al
call   1040 <printf@plt>
lea    0xecc(%rip),%rdi
call   1030 <system@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xecc(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xee1(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
movss  0x4(%rsp),%xmm0
movss  0xea2(%rip),%xmm1
mulss  %xmm0,%xmm1
cvtss2sd %xmm0,%xmm0
cvtss2sd %xmm1,%xmm1
lea    0xeb9(%rip),%rdi
mov    $0x2,%al
call   1040 <printf@plt>
lea    0xee6(%rip),%rdi
call   1030 <system@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [35 x i8] c"Digite uma quantia em dolar (U$): \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [59 x i8] c"U$ %.2f convertidos para real sao equivalentes a R$ %.2f.\0A\00"
@.str.3 = [6 x i8] c"pause\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = alloca float
store float 0x400D9999A0000000, float* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %3)
%6 = load float, float* %3
%7 = load float, float* %1
%8 = fmul float %6, %7
store float %8, float* %2
%9 = load float, float* %3
%10 = fpext float %9 to double
%11 = load float, float* %2
%12 = fpext float %11 to double
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([59 x i8], [59 x i8]* @.str.2, i64 0, i64 0), double %10, double %12)
%14 = call i32 @system(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.3, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [35 x i8] c"Digite uma quantia em dolar (U$): \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [59 x i8] c"U$ %.2f convertidos para real sao equivalentes a R$ %.2f.\0A\00"
@.str.3 = [6 x i8] c"pause\00"
define i32 @main() {
%1 = alloca float
%2 = bitcast float* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %1)
%5 = load float, float* %1
%6 = fmul float %5, 0x400D9999A0000000
%7 = fpext float %5 to double
%8 = fpext float %6 to double
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([59 x i8], [59 x i8]* @.str.2, i64 0, i64 0), double %7, double %8)
%10 = call i32 @system(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.3, i64 0, i64 0))
ret i32 0
}