#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() {
  const float PI = 3.14159;
  float radius;
  printf("Input the radius: ");
  scanf("%f", &radius);
  printf("Diameter      = %f\n", (2 * radius));
  printf("Circumference = %f\n", (2 * PI * radius));
  printf("Circumference = %f\n", (PI * (radius * radius)));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movss  0xec9(%rip),%xmm0
movss  %xmm0,-0x8(%rbp)
lea    0xec9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xece(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
movss  0xea6(%rip),%xmm0
mulss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xeb0(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
movss  0xe83(%rip),%xmm0
mulss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xea5(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
movss  -0xc(%rbp),%xmm1
mulss  -0xc(%rbp),%xmm1
movss  0xe56(%rip),%xmm0
mulss  %xmm1,%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe7d(%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    0xedc(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xee1(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1040 <scanf@plt>
movss  0xc(%rsp),%xmm0
addss  %xmm0,%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xec5(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
movss  0xc(%rsp),%xmm0
mulss  0xe92(%rip),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xeb9(%rip),%rbx
mov    %rbx,%rdi
mov    $0x1,%al
call   1030 <printf@plt>
movss  0xc(%rsp),%xmm0
mulss  %xmm0,%xmm0
mulss  0xe6f(%rip),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %rbx,%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [19 x i8] c"Input the radius: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [20 x i8] c"Diameter = %f\0A\00"
@.str.3 = [20 x i8] c"Circumference = %f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
store i32 0, i32* %1
store float 0x400921FA00000000, float* %2
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 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* %3)
%6 = load float, float* %3
%7 = fmul float 2.000000e+00, %6
%8 = fpext float %7 to double
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.2, i64 0, i64 0), double %8)
%10 = load float, float* %3
%11 = fmul float 0x401921FA00000000, %10
%12 = fpext float %11 to double
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0), double %12)
%14 = load float, float* %3
%15 = load float, float* %3
%16 = fmul float %14, %15
%17 = fmul float 0x400921FA00000000, %16
%18 = fpext float %17 to double
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0), double %18)
ret i32 0
}

LLVM IR (-O2):
@.str = [19 x i8] c"Input the radius: \00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [20 x i8] c"Diameter = %f\0A\00"
@.str.3 = [20 x i8] c"Circumference = %f\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 ([19 x i8], [19 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, 2.000000e+00
%7 = fpext float %6 to double
%8 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.2, i64 0, i64 0), double %7)
%9 = load float, float* %1
%10 = fmul float %9, 0x401921FA00000000
%11 = fpext float %10 to double
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0), double %11)
%13 = load float, float* %1
%14 = fmul float %13, %13
%15 = fmul float %14, 0x400921FA00000000
%16 = fpext float %15 to double
%17 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0), double %16)
ret i32 0
}