Blog post: PGO: Optimizing D's virtual calls

[Johan Engelen via Digitalmars-d-announce]

On Wednesday, 20 April 2016 at 22:10:53 UTC, Marco Leise wrote:
> 
> 7% is quite a bit more than any other option like -cpu=native 
> could achieve. If feasible I'd enjoy if ldc2 shipped with a pgo 
> configuration option. If you use the compiler in a lot of 
> edit/compile cycles it will pay off.

This was the use-case I was optimizing for, and so I will add an 
option to pass a PGO profile to the CMake script :-)
Note that it is a 7% improvement in the D part of LDC. The 
optimizer (LLVM, C++) takes most of the time during compilation 
and so the overall performance increase is smaller.