Running out of memory ctfe 16GB

[Nierjerson via Digitalmars-d]

I am running out of memory trying to generate CTFE code. It is 
quite large generation but just repetitive loop acting on an 
array item.

Surely 16GB should be enough to compile such a thing? I am using 
64-bit dmd. It climes to about 12GB then eventually drops down to 
around 1GB and then back up to 16GB and then quits.

I cannot generate the array in parts and stick them all together 
because they are all interdependent(but not much, nothing that 
should actually cost memory).

Seems that dmd not freeing up memory for speed is gonna start 
causing problems with complex template generation.

Is there any way to fix this? A special switch that will enable 
the compiler to reduce memory consumption(free unused stuff) or 
use the swap file?

https://github.com/IllusionSoftware/COM2D/

At the very least have something to give feedback on how to 
reduce memory consumption. Leaving things up in the air for 
programmers to stumble upon after a lot of work is not good.

On the "Error: Out of Memory" at least report some statistics on 
functions and lines and how much memory they have used and how 
many times they have been called.