Is it's correct to say that ALL types that can grow are place on heap?

[drug]

12.09.2018 15:14, Timoses пишет:
> On Tuesday, 11 September 2018 at 12:07:14 UTC, drug wrote:
>>
>> If data size is less or equal to total size of available registers 
>> (that can be used to pass values) than passing by value is more 
>> efficient. Passing data with size less than register size by reference 
>> isn't efficient because you pass pointer (that has register size) and 
>> access memory using it.
> 
> Thank you!
> So if I pass by reference it will ALWAYS use the address in memory to 
> fetch the data, whereas passing it by value enables the (compiler?..) to 
> use the register which has already loaded the data from memory (stack 
> for example)?

Honestly, I'm not an expert in this domain, but I think so.