#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 *, ...);
int main() {
  float total, price;
  int quantity;
  printf("What is the price of the item?\n");
  scanf(" %f", &price);
  printf("What is the quantity of the item?\n");
  scanf(" %d", &quantity);
  total = (float)quantity * price;
  printf("The total cost is $%.2f\n", total);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xedc(%rip),%rdi
lea    -0xc(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
lea    0xece(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee3(%rip),%rdi
lea    -0x10(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
cvtsi2ssl -0x10(%rbp),%xmm0
mulss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x8(%rbp)
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xebd(%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
lea    0xee9(%rip),%rdi
call   1030 <puts@plt>
lea    0xebc(%rip),%rdi
lea    0x4(%rsp),%rsi
xor    %eax,%eax
call   1050 <scanf@plt>
lea    0xee9(%rip),%rdi
call   1030 <puts@plt>
lea    0xea1(%rip),%rdi
mov    %rsp,%rsi
xor    %eax,%eax
call   1050 <scanf@plt>
cvtsi2ssl (%rsp),%xmm0
mulss  0x4(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe85(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [32 x i8] c"What is the price of the item?\0A\00"
@.str.1 = [4 x i8] c" %f\00"
@.str.2 = [35 x i8] c"What is the quantity of the item?\0A\00"
@.str.3 = [4 x i8] c" %d\00"
@.str.4 = [25 x i8] c"The total cost is $%.2f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca i32
store i32 0, i32* %1
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str, i64 0, i64 0))
%6 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), float* %3)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32* %4)
%9 = load i32, i32* %4
%10 = sitofp i32 %9 to float
%11 = load float, float* %3
%12 = fmul float %10, %11
store float %12, float* %2
%13 = load float, float* %2
%14 = fpext float %13 to double
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.4, i64 0, i64 0), double %14)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [4 x i8] c" %f\00"
@.str.3 = [4 x i8] c" %d\00"
@.str.4 = [25 x i8] c"The total cost is $%.2f\0A\00"
@str = [31 x i8] c"What is the price of the item?\00"
@str.5 = [34 x i8] c"What is the quantity of the item?\00"
define i32 @main() {
%1 = alloca float
%2 = alloca i32
%3 = bitcast float* %1 to i8*
%4 = bitcast i32* %2 to i8*
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @str, i64 0, i64 0))
%6 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), float* %1)
%7 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([34 x i8], [34 x i8]* @str.5, i64 0, i64 0))
%8 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32* %2)
%9 = load i32, i32* %2
%10 = sitofp i32 %9 to float
%11 = load float, float* %1
%12 = fmul float %11, %10
%13 = fpext float %12 to double
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.4, i64 0, i64 0), double %13)
ret i32 0
}