#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;
double pow(float, int);
int /*<<< orphan*/ printf(char *, double);
scalar_t__ scanf(char *, float *);
int main() {
  float r;
  while (scanf("%f", &r) != EOF) {
    printf("VOLUME = %.3f\n", 4.0 / 3.0 * 3.14159 * pow(r, 3));
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xec2(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    0x2e92(%rip),%rcx
cmp    (%rcx),%rax
je     118e <main+0x5e>
movss  -0x8(%rbp),%xmm0
mov    $0x3,%edi
call   1050 <pow@plt>
movaps %xmm0,%xmm1
movsd  0xe87(%rip),%xmm0
mulsd  %xmm1,%xmm0
lea    0xe87(%rip),%rdi
call   1030 <printf@plt>
jmp    113f <main+0xf>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
lea    0xec9(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x2e98(%rip),%r12
cmp    (%r12),%rax
je     11a1 <main+0x71>
lea    0xeae(%rip),%r14
lea    0xea4(%rip),%r15
lea    0x4(%rsp),%rbx
nopl   0x0(%rax)
movss  0x4(%rsp),%xmm0
mov    $0x3,%edi
call   1050 <pow@plt>
mulsd  0xe78(%rip),%xmm0
mov    %r14,%rdi
call   1030 <printf@plt>
mov    %r15,%rdi
mov    %rbx,%rsi
call   1040 <scanf@plt>
cmp    (%r12),%rax
jne    1170 <main+0x40>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%f\00"
@EOF = global i64 0
@.str.1 = [15 x i8] c"VOLUME = %.3f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
store i32 0, i32* %1
br label %3
3: ; preds = %7, %0
%4 = call i64 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %2)
%5 = load i64, i64* @EOF
%6 = icmp ne i64 %4, %5
br i1 %6, label %7, label %12
7: ; preds = %3
%8 = load float, float* %2
%9 = call double @pow(float %8, i32 3)
%10 = fmul double 0x4010C1514ABD0449, %9
%11 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.1, i64 0, i64 0), double %10)
br label %3
12: ; preds = %3
%13 = load i32, i32* %1
ret i32 %13
}

LLVM IR (-O2):
@.str = [3 x i8] c"%f\00"
@EOF = global i64 0
@.str.1 = [15 x i8] c"VOLUME = %.3f\0A\00"
define i32 @main() {
%1 = alloca float
%2 = bitcast float* %1 to i8*
%3 = call i64 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%4 = load i64, i64* @EOF
%5 = icmp eq i64 %3, %4
br i1 %5, label %14, label %6
6: ; preds = %0, %6
%7 = load float, float* %1
%8 = call double @pow(float %7, i32 3)
%9 = fmul double %8, 0x4010C1514ABD0449
%10 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.1, i64 0, i64 0), double %9)
%11 = call i64 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%12 = load i64, i64* @EOF
%13 = icmp eq i64 %11, %12
br i1 %13, label %14, label %6
14: ; preds = %6, %0
ret i32 0
}