#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 check_nth_bit(unsigned int, int);
int invert_nth_bit(unsigned int, int);
int /*<<< orphan*/ printf(char *, int, int);
int main(void) {
  unsigned int num = 16;
  int i;
  for (i = 0; i < 8; i++)
    printf("%d %d\n", check_nth_bit(num, i), invert_nth_bit(num, i));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x10,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
cmpl   $0x8,-0xc(%rbp)
jge    118f <main+0x5f>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1050 <check_nth_bit@plt>
mov    %eax,-0x10(%rbp)
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1040 <invert_nth_bit@plt>
mov    -0x10(%rbp),%esi
mov    %eax,%edx
lea    0xe84(%rip),%rdi
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    114d <main+0x1d>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
mov    $0x10,%edi
xor    %esi,%esi
call   1050 <check_nth_bit@plt>
mov    %eax,%ebp
mov    $0x10,%edi
xor    %esi,%esi
call   1040 <invert_nth_bit@plt>
lea    0xeac(%rip),%rbx
mov    %rbx,%rdi
mov    %ebp,%esi
mov    %eax,%edx
call   1030 <printf@plt>
mov    $0x10,%edi
mov    $0x1,%esi
call   1050 <check_nth_bit@plt>
mov    %eax,%ebp
mov    $0x10,%edi
mov    $0x1,%esi
call   1040 <invert_nth_bit@plt>
mov    %rbx,%rdi
mov    %ebp,%esi
mov    %eax,%edx
call   1030 <printf@plt>
mov    $0x10,%edi
mov    $0x2,%esi
call   1050 <check_nth_bit@plt>
mov    %eax,%ebp
mov    $0x10,%edi
mov    $0x2,%esi
call   1040 <invert_nth_bit@plt>
mov    %rbx,%rdi
mov    %ebp,%esi
mov    %eax,%edx
call   1030 <printf@plt>
mov    $0x10,%edi
mov    $0x3,%esi
call   1050 <check_nth_bit@plt>
mov    %eax,%ebp
mov    $0x10,%edi
mov    $0x3,%esi
call   1040 <invert_nth_bit@plt>
mov    %rbx,%rdi
mov    %ebp,%esi
mov    %eax,%edx
call   1030 <printf@plt>
mov    $0x10,%edi
mov    $0x4,%esi
call   1050 <check_nth_bit@plt>
mov    %eax,%ebp
mov    $0x10,%edi
mov    $0x4,%esi
call   1040 <invert_nth_bit@plt>
mov    %rbx,%rdi
mov    %ebp,%esi
mov    %eax,%edx
call   1030 <printf@plt>
mov    $0x10,%edi
mov    $0x5,%esi
call   1050 <check_nth_bit@plt>
mov    %eax,%ebp
mov    $0x10,%edi
mov    $0x5,%esi
call   1040 <invert_nth_bit@plt>
mov    %rbx,%rdi
mov    %ebp,%esi
mov    %eax,%edx
call   1030 <printf@plt>
mov    $0x10,%edi
mov    $0x6,%esi
call   1050 <check_nth_bit@plt>
mov    %eax,%ebp
mov    $0x10,%edi
mov    $0x6,%esi
call   1040 <invert_nth_bit@plt>
mov    %rbx,%rdi
mov    %ebp,%esi
mov    %eax,%edx
call   1030 <printf@plt>
mov    $0x10,%edi
mov    $0x7,%esi
call   1050 <check_nth_bit@plt>
mov    %eax,%ebp
mov    $0x10,%edi
mov    $0x7,%esi
call   1040 <invert_nth_bit@plt>
mov    %rbx,%rdi
mov    %ebp,%esi
mov    %eax,%edx
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [7 x i8] c"%d %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 16, i32* %2
store i32 0, i32* %3
br label %4
4: ; preds = %15, %0
%5 = load i32, i32* %3
%6 = icmp slt i32 %5, 8
br i1 %6, label %7, label %18
7: ; preds = %4
%8 = load i32, i32* %2
%9 = load i32, i32* %3
%10 = call i32 @check_nth_bit(i32 %8, i32 %9)
%11 = load i32, i32* %2
%12 = load i32, i32* %3
%13 = call i32 @invert_nth_bit(i32 %11, i32 %12)
%14 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %10, i32 %13)
br label %15
15: ; preds = %7
%16 = load i32, i32* %3
%17 = add nsw i32 %16, 1
store i32 %17, i32* %3
br label %4
18: ; preds = %4
ret i32 0
}

LLVM IR (-O2):
@.str = [7 x i8] c"%d %d\0A\00"
define i32 @main() {
%1 = tail call i32 @check_nth_bit(i32 16, i32 0)
%2 = tail call i32 @invert_nth_bit(i32 16, i32 0)
%3 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %1, i32 %2)
%4 = tail call i32 @check_nth_bit(i32 16, i32 1)
%5 = tail call i32 @invert_nth_bit(i32 16, i32 1)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %4, i32 %5)
%7 = tail call i32 @check_nth_bit(i32 16, i32 2)
%8 = tail call i32 @invert_nth_bit(i32 16, i32 2)
%9 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %7, i32 %8)
%10 = tail call i32 @check_nth_bit(i32 16, i32 3)
%11 = tail call i32 @invert_nth_bit(i32 16, i32 3)
%12 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %10, i32 %11)
%13 = tail call i32 @check_nth_bit(i32 16, i32 4)
%14 = tail call i32 @invert_nth_bit(i32 16, i32 4)
%15 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %13, i32 %14)
%16 = tail call i32 @check_nth_bit(i32 16, i32 5)
%17 = tail call i32 @invert_nth_bit(i32 16, i32 5)
%18 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %16, i32 %17)
%19 = tail call i32 @check_nth_bit(i32 16, i32 6)
%20 = tail call i32 @invert_nth_bit(i32 16, i32 6)
%21 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %19, i32 %20)
%22 = tail call i32 @check_nth_bit(i32 16, i32 7)
%23 = tail call i32 @invert_nth_bit(i32 16, i32 7)
%24 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %22, i32 %23)
ret i32 0
}