VHDL Order 0s and 1s

Hey guys! I need to do something on VHDL.

The problems is this: I have a 8 bit input, and i have to order the bits of it.
The zeros to the right and the Ones to the left.
Example :
input <= "01100011"
output<= "11110000"
I need to count the number of zeros or ones but without foor loop.
With foor loop its something like this:
for i in 0 to 7 loop
if input(i) = '1' then
count <= count + 1;
end loop;
but i have to do it WITHOUT that sentence.
If you guys could give me ideas, I ll be so happy.
Nice day.

Here is a 32 bit implementation from StackExchange


It would be easy to run as 8 bit!!