#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 */
scalar_t__ EOF;
int /*<<< orphan*/ printf(char *, float);
scalar_t__ scanf(char *, float *, float *);
int main() {
  float a, b;
  while (scanf("%f %f", &a, &b) != EOF) {
    printf("%.3f km/l\n", a / b);
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
call   1040 <scanf@plt>
mov    0x2e9e(%rip),%rcx
cmp    (%rcx),%rax
je     116e <main+0x4e>
movss  -0x8(%rbp),%xmm0
divss  -0xc(%rbp),%xmm0
lea    0xea2(%rip),%rdi
call   1030 <printf@plt>
jmp    112f <main+0xf>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x10,%rsp
lea    0xecc(%rip),%rdi
lea    0xc(%rsp),%rsi
lea    0x8(%rsp),%rdx
call   1040 <scanf@plt>
mov    0x2e9e(%rip),%r13
cmp    0x0(%r13),%rax
je     1198 <main+0x78>
lea    0xeaf(%rip),%r14
lea    0xea2(%rip),%r15
lea    0xc(%rsp),%r12
lea    0x8(%rsp),%rbx
nopl   0x0(%rax,%rax,1)
movss  0xc(%rsp),%xmm0
divss  0x8(%rsp),%xmm0
mov    %r14,%rdi
call   1030 <printf@plt>
mov    %r15,%rdi
mov    %r12,%rsi
mov    %rbx,%rdx
call   1040 <scanf@plt>
cmp    0x0(%r13),%rax
jne    1170 <main+0x50>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [6 x i8] c"%f %f\00"
@EOF = global i64 0
@.str.1 = [11 x i8] c"%.3f km/l\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
store i32 0, i32* %1
br label %4
4: ; preds = %8, %0
%5 = call i64 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), float* %2, float* %3)
%6 = load i64, i64* @EOF
%7 = icmp ne i64 %5, %6
br i1 %7, label %8, label %13
8: ; preds = %4
%9 = load float, float* %2
%10 = load float, float* %3
%11 = fdiv float %9, %10
%12 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), float %11)
br label %4
13: ; preds = %4
%14 = load i32, i32* %1
ret i32 %14
}

LLVM IR (-O2):
@.str = [6 x i8] c"%f %f\00"
@EOF = global i64 0
@.str.1 = [11 x i8] c"%.3f km/l\0A\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = bitcast float* %1 to i8*
%4 = bitcast float* %2 to i8*
%5 = call i64 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), float* %1, float* %2)
%6 = load i64, i64* @EOF
%7 = icmp eq i64 %5, %6
br i1 %7, label %16, label %8
8: ; preds = %0, %8
%9 = load float, float* %1
%10 = load float, float* %2
%11 = fdiv float %9, %10
%12 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), float %11)
%13 = call i64 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), float* %1, float* %2)
%14 = load i64, i64* @EOF
%15 = icmp eq i64 %13, %14
br i1 %15, label %16, label %8
16: ; preds = %8, %0
ret i32 0
}