#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 *countBits(int, int *);
int /*<<< orphan*/ printf(char *, int);
int /*<<< orphan*/ putchar(char);
int main() {
  int i, ret = 0, *res = countBits(5, &ret);
  for (i = 0; i < ret; i++) {
    printf("%d ", res[i]);
  }
  putchar('\n');
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0xc(%rbp)
mov    $0x5,%edi
lea    -0xc(%rbp),%rsi
call   1040 <countBits@plt>
mov    %rax,-0x18(%rbp)
movl   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1190 <main+0x60>
mov    -0x18(%rbp),%rax
movslq -0x8(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe83(%rip),%rdi
call   1050 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    115f <main+0x2f>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
sub    $0x10,%rsp
movl   $0x0,0xc(%rsp)
lea    0xc(%rsp),%rsi
mov    $0x5,%edi
call   1040 <countBits@plt>
cmpl   $0x0,0xc(%rsp)
jle    118a <main+0x5a>
mov    %rax,%r15
xor    %ebx,%ebx
lea    0xe9d(%rip),%r14
cs nopw 0x0(%rax,%rax,1)
nopl   (%rax)
mov    (%r15,%rbx,4),%esi
mov    %r14,%rdi
call   1050 <printf@plt>
add    $0x1,%rbx
movslq 0xc(%rsp),%rax
cmp    %rax,%rbx
jl     1170 <main+0x40>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%d \00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32*
store i32 0, i32* %1
store i32 0, i32* %3
%5 = call i32* @countBits(i32 5, i32* %3)
store i32* %5, i32** %4
store i32 0, i32* %2
br label %6
6: ; preds = %17, %0
%7 = load i32, i32* %2
%8 = load i32, i32* %3
%9 = icmp slt i32 %7, %8
br i1 %9, label %10, label %20
10: ; preds = %6
%11 = load i32*, i32** %4
%12 = load i32, i32* %2
%13 = sext i32 %12 to i64
%14 = getelementptr inbounds i32, i32* %11, i64 %13
%15 = load i32, i32* %14
%16 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %15)
br label %17
17: ; preds = %10
%18 = load i32, i32* %2
%19 = add nsw i32 %18, 1
store i32 %19, i32* %2
br label %6
20: ; preds = %6
%21 = call i32 @putchar(i8 signext 10)
ret i32 0
}

LLVM IR (-O2):
@.str = [4 x i8] c"%d \00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
store i32 0, i32* %1
%3 = call i32* @countBits(i32 5, i32* %1)
%4 = load i32, i32* %1
%5 = icmp sgt i32 %4, 0
br i1 %5, label %6, label %15
6: ; preds = %0, %6
%7 = phi i64 [ %11, %6 ], [ 0, %0 ]
%8 = getelementptr inbounds i32, i32* %3, i64 %7
%9 = load i32, i32* %8
%10 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %9)
%11 = add nuw nsw i64 %7, 1
%12 = load i32, i32* %1
%13 = sext i32 %12 to i64
%14 = icmp slt i64 %11, %13
br i1 %14, label %6, label %15
15: ; preds = %6, %0
%16 = call i32 @putchar(i8 signext 10)
ret i32 0
}