#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 M_PI;
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, float *);
void degree_to_radian() {
  float d, r, rpi;
  printf("Degrees: ");
  scanf("%f", &d);
  r = d * (M_PI / 180);
  rpi = d / 180;
  printf("%f", r);
  printf(" or %f", rpi);
  printf("π radians\n");
}


x86 assembly (clang, -O0):
<degree_to_radian>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xed5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed5(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x4(%rbp),%xmm0
mov    0x2e96(%rip),%rax
mov    (%rax),%eax
mov    $0xb4,%ecx
cltd
idiv   %ecx
cvtsi2ss %eax,%xmm1
mulss  %xmm1,%xmm0
movss  %xmm0,-0x8(%rbp)
movss  -0x4(%rbp),%xmm0
movss  0xe8a(%rip),%xmm1
divss  %xmm1,%xmm0
movss  %xmm0,-0xc(%rbp)
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe83(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
movss  -0xc(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe68(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
lea    0xe61(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<degree_to_radian>:
push   %rbx
sub    $0x10,%rsp
lea    0xec8(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec8(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
movss  0xc(%rsp),%xmm1
mov    0x2e84(%rip),%rax
movslq (%rax),%rax
imul   $0xffffffffb60b60b7,%rax,%rcx
shr    $0x20,%rcx
add    %eax,%ecx
mov    %ecx,%eax
shr    $0x1f,%eax
sar    $0x7,%ecx
add    %eax,%ecx
cvtsi2ss %ecx,%xmm0
mulss  %xmm1,%xmm0
divss  0xe72(%rip),%xmm1
movss  %xmm1,0x8(%rsp)
cvtss2sd %xmm0,%xmm0
mov    %rbx,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x8(%rsp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe5b(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
lea    0xe54(%rip),%rdi
call   1030 <puts@plt>
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [10 x i8] c"Degrees: \00"
@.str.1 = [3 x i8] c"%f\00"
@M_PI = global i32 0
@.str.2 = [7 x i8] c" or %f\00"
@.str.3 = [12 x i8] c"\CF\80 radians\0A\00"
define void @degree_to_radian() {
%1 = alloca float
%2 = alloca float
%3 = alloca float
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([10 x i8], [10 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* %1)
%6 = load float, float* %1
%7 = load i32, i32* @M_PI
%8 = sdiv i32 %7, 180
%9 = sitofp i32 %8 to float
%10 = fmul float %6, %9
store float %10, float* %2
%11 = load float, float* %1
%12 = fdiv float %11, 1.800000e+02
store float %12, float* %3
%13 = load float, float* %2
%14 = fpext float %13 to double
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), double %14)
%16 = load float, float* %3
%17 = fpext float %16 to double
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.2, i64 0, i64 0), double %17)
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.3, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str = [10 x i8] c"Degrees: \00"
@.str.1 = [3 x i8] c"%f\00"
@M_PI = global i32 0
@.str.2 = [7 x i8] c" or %f\00"
@str = [11 x i8] c"\CF\80 radians\00"
define void @degree_to_radian() {
%1 = alloca float
%2 = bitcast float* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([10 x i8], [10 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 = load i32, i32* @M_PI
%7 = sdiv i32 %6, 180
%8 = sitofp i32 %7 to float
%9 = fmul float %5, %8
%10 = fdiv float %5, 1.800000e+02
%11 = fpext float %9 to double
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), double %11)
%13 = fpext float %10 to double
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str.2, i64 0, i64 0), double %13)
%15 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @str, i64 0, i64 0))
ret void
}