#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 bit_get(unsigned char, int);
int /*<<< orphan*/ printf(char *, ...);
void cbits_print(unsigned char x) {
  printf("%#010X: ", x);
  int i;
  for (i = sizeof(char) * 8 - 1; i >= 0; i--) {
    printf("%i", bit_get(x, i));
  }
  printf("\n");
}


x86 assembly (clang, -O0):
<cbits_print>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %dil,%al
mov    %al,-0x1(%rbp)
movzbl -0x1(%rbp),%esi
lea    0xec7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x7,-0x8(%rbp)
cmpl   $0x0,-0x8(%rbp)
jl     117d <cbits_print+0x5d>
mov    -0x1(%rbp),%al
mov    -0x8(%rbp),%esi
movzbl %al,%edi
call   1040 <bit_get@plt>
mov    %eax,%esi
lea    0xea1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,-0x8(%rbp)
jmp    1147 <cbits_print+0x27>
lea    0xe88(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<cbits_print>:
push   %r14
push   %rbx
push   %rax
mov    %edi,%ebx
lea    0xec3(%rip),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%edi
mov    $0x7,%esi
call   1050 <bit_get@plt>
lea    0xeb0(%rip),%r14
mov    %r14,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%edi
mov    $0x6,%esi
call   1050 <bit_get@plt>
mov    %r14,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%edi
mov    $0x5,%esi
call   1050 <bit_get@plt>
mov    %r14,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%edi
mov    $0x4,%esi
call   1050 <bit_get@plt>
mov    %r14,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%edi
mov    $0x3,%esi
call   1050 <bit_get@plt>
mov    %r14,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%edi
mov    $0x2,%esi
call   1050 <bit_get@plt>
mov    %r14,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%edi
mov    $0x1,%esi
call   1050 <bit_get@plt>
mov    %r14,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%edi
xor    %esi,%esi
call   1050 <bit_get@plt>
mov    %r14,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
add    $0x8,%rsp
pop    %rbx
pop    %r14
jmp    1030 <putchar@plt>

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

LLVM IR (-O2):
@.str = [9 x i8] c"%X: \00"
@.str.1 = [3 x i8] c"%i\00"
define void @cbits_print(i8 zeroext %0) {
%2 = zext i8 %0 to i32
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i32 %2)
%4 = tail call i32 @bit_get(i8 zeroext %0, i32 7)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %4)
%6 = tail call i32 @bit_get(i8 zeroext %0, i32 6)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %6)
%8 = tail call i32 @bit_get(i8 zeroext %0, i32 5)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %8)
%10 = tail call i32 @bit_get(i8 zeroext %0, i32 4)
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %10)
%12 = tail call i32 @bit_get(i8 zeroext %0, i32 3)
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %12)
%14 = tail call i32 @bit_get(i8 zeroext %0, i32 2)
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %14)
%16 = tail call i32 @bit_get(i8 zeroext %0, i32 1)
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %16)
%18 = tail call i32 @bit_get(i8 zeroext %0, i32 0)
%19 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %18)
%20 = tail call i32 @putchar(i32 10)
ret void
}