#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 *, ...);
void main(void) {
  int quantidade;
  float preco, valorCompra;
  printf("Digite o preco unitario: ");
  scanf("%f", &preco);
  printf("Digite a quantidade: ");
  scanf("%i", &quantidade);
  valorCompra = preco * quantidade;
  printf("O valor da compra eh R$%.2f", valorCompra);
}


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    0xedd(%rip),%rdi
lea    -0x8(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
lea    0xece(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed6(%rip),%rdi
lea    -0x4(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
cvtsi2ssl -0x4(%rbp),%xmm1
mulss  %xmm1,%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xeab(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed8(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xee4(%rip),%rdi
mov    %rsp,%rsi
xor    %eax,%eax
call   1040 <scanf@plt>
lea    0xed6(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xede(%rip),%rdi
lea    0x4(%rsp),%rsi
xor    %eax,%eax
call   1040 <scanf@plt>
cvtsi2ssl 0x4(%rsp),%xmm0
mulss  (%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xebf(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
pop    %rax
ret

LLVM IR (-O0):
@.str = [26 x i8] c"Digite o preco unitario: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [22 x i8] c"Digite a quantidade: \00"
@.str.3 = [3 x i8] c"%i\00"
@.str.4 = [28 x i8] c"O valor da compra eh R$%.2f\00"
define void @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32* %1)
%8 = load float, float* %2
%9 = load i32, i32* %1
%10 = sitofp i32 %9 to float
%11 = fmul float %8, %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 ([28 x i8], [28 x i8]* @.str.4, i64 0, i64 0), double %13)
ret void
}

LLVM IR (-O2):
@.str = [26 x i8] c"Digite o preco unitario: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [22 x i8] c"Digite a quantidade: \00"
@.str.3 = [3 x i8] c"%i\00"
@.str.4 = [28 x i8] c"O valor da compra eh R$%.2f\00"
define void @main() {
%1 = alloca i32
%2 = alloca float
%3 = bitcast i32* %1 to i8*
%4 = bitcast float* %2 to i8*
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0))
%6 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%7 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32* %1)
%9 = load float, float* %2
%10 = load i32, i32* %1
%11 = sitofp i32 %10 to float
%12 = fmul float %9, %11
%13 = fpext float %12 to double
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @.str.4, i64 0, i64 0), double %13)
ret void
}