#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 main(void) {
  const float M_TO_KM = 1.609;
  float miles, gallons;
  printf("Please enter the number of miles traveled:\n");
  scanf("%f", &miles);
  printf("Please enter the number of gallons of gasoline:\n");
  scanf("%f", &gallons);
  printf("the miles-per-gallon value of your car is %.1f\n", miles / gallons);
  printf("and the liters-per-100-km value of your car is %.1f\n",
         (gallons * 3.785) / (miles * M_TO_KM / 100));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movss  0xecd(%rip),%xmm0
movss  %xmm0,-0x8(%rbp)
lea    0xecd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeeb(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xede(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xecd(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0xc(%rbp),%xmm0
divss  -0x10(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xee3(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
movss  -0x10(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movsd  0xe63(%rip),%xmm1
mulsd  %xmm1,%xmm0
movss  0xe53(%rip),%xmm1
mulss  -0xc(%rbp),%xmm1
movss  0xe42(%rip),%xmm2
divss  %xmm2,%xmm1
cvtss2sd %xmm1,%xmm1
divsd  %xmm1,%xmm0
lea    0xecf(%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    0xf3c(%rip),%rdi
call   1030 <puts@plt>
lea    0xec8(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0xf47(%rip),%rdi
call   1030 <puts@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
movss  0xc(%rsp),%xmm0
divss  0x8(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe8e(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x8(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
mulsd  0xe62(%rip),%xmm0
movss  0xc(%rsp),%xmm1
mulss  0xe5c(%rip),%xmm1
divss  0xe58(%rip),%xmm1
cvtss2sd %xmm1,%xmm1
divsd  %xmm1,%xmm0
lea    0xe80(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [44 x i8] c"Please enter the number of miles traveled:\0A\00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [49 x i8] c"Please enter the number of gallons of gasoline:\0A\00"
@.str.3 = [48 x i8] c"the miles-per-gallon value of your car is %.1f\0A\00"
@.str.4 = [53 x i8] c"and the liters-per-100-km value of your car is %.1f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
store i32 0, i32* %1
store float 0x3FF9BE76C0000000, float* %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %3)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([49 x i8], [49 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %4)
%9 = load float, float* %3
%10 = load float, float* %4
%11 = fdiv float %9, %10
%12 = fpext float %11 to double
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.3, i64 0, i64 0), double %12)
%14 = load float, float* %4
%15 = fpext float %14 to double
%16 = fmul double %15, 3.785000e+00
%17 = load float, float* %3
%18 = fmul float %17, 0x3FF9BE76C0000000
%19 = fdiv float %18, 1.000000e+02
%20 = fpext float %19 to double
%21 = fdiv double %16, %20
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([53 x i8], [53 x i8]* @.str.4, i64 0, i64 0), double %21)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%f\00"
@.str.3 = [48 x i8] c"the miles-per-gallon value of your car is %.1f\0A\00"
@.str.4 = [53 x i8] c"and the liters-per-100-km value of your car is %.1f\0A\00"
@str = [43 x i8] c"Please enter the number of miles traveled:\00"
@str.5 = [48 x i8] c"Please enter the number of gallons of gasoline:\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = bitcast float* %1 to i8*
%4 = bitcast float* %2 to i8*
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([43 x i8], [43 x i8]* @str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %1)
%7 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([48 x i8], [48 x i8]* @str.5, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%9 = load float, float* %1
%10 = load float, float* %2
%11 = fdiv float %9, %10
%12 = fpext float %11 to double
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([48 x i8], [48 x i8]* @.str.3, i64 0, i64 0), double %12)
%14 = load float, float* %2
%15 = fpext float %14 to double
%16 = fmul double %15, 3.785000e+00
%17 = load float, float* %1
%18 = fmul float %17, 0x3FF9BE76C0000000
%19 = fdiv float %18, 1.000000e+02
%20 = fpext float %19 to double
%21 = fdiv double %16, %20
%22 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([53 x i8], [53 x i8]* @.str.4, i64 0, i64 0), double %21)
ret i32 0
}