How to accelerate the linking time?

[Arun Chandrasekaran]

On Friday, 10 July 2020 at 12:15:56 UTC, Steven Schveighoffer 
wrote:
> On 7/10/20 1:45 AM, zoujiaqing wrote:
>> [...]
>
> The linking time is high because of the symbol count/sizes 
> generally. Lots of templates means the linker takes a while to 
> sort through the mess you made ;)
>

Mike Franklin optimized the mangling a while ago. That was a 
crucial change, IMO (imagine how big the original was!).

Any idea why the unnecessary symbols gets generated by the 
compiler (foreach, etc) in release mode? I can understand for 
debug builds though...