Improving DMD's memory management

Stefan Koch via Digitalmars-d digitalmars-d at puremagic.com
Fri Jun 3 20:40:54 PDT 2016


On Friday, 3 June 2016 at 15:04:59 UTC, Stefan Koch wrote:
> Hi,
>
> I just saw something in the Vision 2016 H2 Document, which is 
> very dear to me.
> Improving the Memory Management in the compiler.
>
> I think we need at least three different allocation primitives.
> One for allocating Temporary Memory to which no one should keep 
> references that have a longer lifetime then the memory-block 
> itself.
> One RC primitive.
> And one primitive for virtually immutable memory.
>
> One size fits all is not a solution that is going to scale.
>
> When the details of those primitives are worked out replace 
> _ALL_ malloc and free pairs.
> With an appropriate allocation primitive.

And I think of pump-the-pointer and never free. As a perfectly 
fine allocation primitive.
If the resources are virtually immutable.

The temp-memory primitive also can be done with a 
bump-the-pointer method.



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