#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*/ getch();
int /*<<< orphan*/ printf(char *, int, int, double);
double varbessel2(int, int);
main() {
  int n;
  for (n = 1; n < 6; n++) {
    printf("\nvarbessel2(%d,%4.2f)=%e", n, n * 0.5, varbessel2(n, n * 0.5));
  }
  getch();
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x1,-0x8(%rbp)
cmpl   $0x6,-0x8(%rbp)
jge    11ab <main+0x7b>
mov    -0x8(%rbp),%eax
mov    %eax,-0x10(%rbp)
cvtsi2sdl -0x8(%rbp),%xmm0
movsd  0xe9d(%rip),%xmm1
mulsd  %xmm1,%xmm0
cvttsd2si %xmm0,%eax
mov    %eax,-0xc(%rbp)
mov    -0x8(%rbp),%edi
cvtsi2sdl -0x8(%rbp),%xmm0
movsd  0xe82(%rip),%xmm1
mulsd  %xmm1,%xmm0
cvttsd2si %xmm0,%esi
call   1040 <varbessel2@plt>
mov    -0x10(%rbp),%esi
mov    -0xc(%rbp),%edx
lea    0xe70(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    1146 <main+0x16>
mov    $0x0,%al
call   1050 <getch@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    $0x1,%edi
xor    %esi,%esi
call   1040 <varbessel2@plt>
lea    0xebc(%rip),%rbx
mov    %rbx,%rdi
mov    $0x1,%esi
xor    %edx,%edx
call   1030 <printf@plt>
mov    $0x2,%edi
mov    $0x1,%esi
call   1040 <varbessel2@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0x1,%edx
call   1030 <printf@plt>
mov    $0x3,%edi
mov    $0x1,%esi
call   1040 <varbessel2@plt>
mov    %rbx,%rdi
mov    $0x3,%esi
mov    $0x1,%edx
call   1030 <printf@plt>
mov    $0x4,%edi
mov    $0x2,%esi
call   1040 <varbessel2@plt>
mov    %rbx,%rdi
mov    $0x4,%esi
mov    $0x2,%edx
call   1030 <printf@plt>
mov    $0x5,%edi
mov    $0x2,%esi
call   1040 <varbessel2@plt>
mov    %rbx,%rdi
mov    $0x5,%esi
mov    $0x2,%edx
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <getch@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [25 x i8] c"\0Avarbessel2(%d,%4.2f)=%e\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
store i32 1, i32* %2
br label %3
3: ; preds = %19, %0
%4 = load i32, i32* %2
%5 = icmp slt i32 %4, 6
br i1 %5, label %6, label %22
6: ; preds = %3
%7 = load i32, i32* %2
%8 = load i32, i32* %2
%9 = sitofp i32 %8 to double
%10 = fmul double %9, 5.000000e-01
%11 = fptosi double %10 to i32
%12 = load i32, i32* %2
%13 = load i32, i32* %2
%14 = sitofp i32 %13 to double
%15 = fmul double %14, 5.000000e-01
%16 = fptosi double %15 to i32
%17 = call double @varbessel2(i32 %12, i32 %16)
%18 = call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0), i32 %7, i32 %11, double %17)
br label %19
19: ; preds = %6
%20 = load i32, i32* %2
%21 = add nsw i32 %20, 1
store i32 %21, i32* %2
br label %3
22: ; preds = %3
%23 = call i32 (...) @getch()
%24 = load i32, i32* %1
ret i32 %24
}

LLVM IR (-O2):
@.str = [25 x i8] c"\0Avarbessel2(%d,%4.2f)=%e\00"
define i32 @main() {
%1 = tail call double @varbessel2(i32 1, i32 0)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0), i32 1, i32 0, double %1)
%3 = tail call double @varbessel2(i32 2, i32 1)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0), i32 2, i32 1, double %3)
%5 = tail call double @varbessel2(i32 3, i32 1)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0), i32 3, i32 1, double %5)
%7 = tail call double @varbessel2(i32 4, i32 2)
%8 = tail call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0), i32 4, i32 2, double %7)
%9 = tail call double @varbessel2(i32 5, i32 2)
%10 = tail call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0), i32 5, i32 2, double %9)
%11 = tail call i32 (...) @getch()
ret i32 0
}