#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 radius;
  printf("Enter radius (meters): ");
  scanf("%f", &radius);
  float volume = 4.00f / 3.00f * 3.14f * (radius * radius * radius);
  printf("Sphere volume: %.2f\n", volume);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xece(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed8(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm1
mulss  -0x8(%rbp),%xmm1
mulss  -0x8(%rbp),%xmm1
movss  0xe9c(%rip),%xmm0
mulss  %xmm1,%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xea2(%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    0xedc(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xee6(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
movss  0x4(%rsp),%xmm0
movaps %xmm0,%xmm1
mulss  %xmm0,%xmm1
mulss  %xmm0,%xmm1
mulss  0xea7(%rip),%xmm1
xorps  %xmm0,%xmm0
cvtss2sd %xmm1,%xmm0
lea    0xeb8(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [24 x i8] c"Enter radius (meters): \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [21 x i8] c"Sphere volume: %.2f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
store i32 0, i32* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%6 = load float, float* %2
%7 = load float, float* %2
%8 = fmul float %6, %7
%9 = load float, float* %2
%10 = fmul float %8, %9
%11 = fmul float 0x4010BF25A0000000, %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 ([21 x i8], [21 x i8]* @.str.2, i64 0, i64 0), double %13)
ret i32 0
}

LLVM IR (-O2):
@.str = [24 x i8] c"Enter radius (meters): \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [21 x i8] c"Sphere volume: %.2f\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 ([24 x i8], [24 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 = fmul float %5, %5
%7 = fmul float %5, %6
%8 = fmul float %7, 0x4010BF25A0000000
%9 = fpext float %8 to double
%10 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @.str.2, i64 0, i64 0), double %9)
ret i32 0
}