Blog post: PGO: Optimizing D's virtual calls

[Johan Engelen via Digitalmars-d-announce]

Hi all,
  I've written an article about how I implemented profile-guided 
optimization (PGO) of virtual calls to direct calls (a 
micro-micro-optimization, expected performance gain of just a few 
percent if any!). I hope it's interesting for those of you who 
like to read about compiler internals.

https://johanengelen.github.io/ldc/2016/04/13/PGO-in-LDC-virtual-calls.html

It's my first programming article, please be gentle with your 
comments :-)

cheers,
  Johan