#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) {
  float singleMass = 3.0E-23f;
  float perQuart = 950.0f;
  float quarts;
  printf("Enter the amount of water in quarts: ");
  scanf("%f", &quarts);
  printf("%.1f quarts water has %e molecules.\n", quarts,
         quarts * perQuart / singleMass);
  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)
movss  0xebc(%rip),%xmm0
movss  %xmm0,-0xc(%rbp)
lea    0xeb8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed0(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x10(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x10(%rbp),%xmm1
mulss  -0xc(%rbp),%xmm1
divss  -0x8(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xea7(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xee0(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xef8(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
movss  0x4(%rsp),%xmm1
cvtss2sd %xmm1,%xmm0
mulss  0xeae(%rip),%xmm1
divss  0xeaa(%rip),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xecc(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [38 x i8] c"Enter the amount of water in quarts: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [37 x i8] c"%.1f quarts water has %e molecules.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
store i32 0, i32* %1
store float 0x3B42224680000000, float* %2
store float 9.500000e+02, float* %3
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([38 x i8], [38 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* %4)
%7 = load float, float* %4
%8 = fpext float %7 to double
%9 = load float, float* %4
%10 = load float, float* %3
%11 = fmul float %9, %10
%12 = load float, float* %2
%13 = fdiv float %11, %12
%14 = fpext float %13 to double
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str.2, i64 0, i64 0), double %8, double %14)
ret i32 0
}

LLVM IR (-O2):
@.str = [38 x i8] c"Enter the amount of water in quarts: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [37 x i8] c"%.1f quarts water has %e molecules.\0A\00"
define i32 @main() {
%1 = alloca float
%2 = bitcast float* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([38 x i8], [38 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 = fpext float %5 to double
%7 = fmul float %5, 9.500000e+02
%8 = fdiv float %7, 0x3B42224680000000
%9 = fpext float %8 to double
%10 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([37 x i8], [37 x i8]* @.str.2, i64 0, i64 0), double %6, double %9)
ret i32 0
}