Do everything in Java…

[H. S. Teoh via Digitalmars-d]

On Tue, Dec 09, 2014 at 07:16:56PM +0300, Dmitry Olshansky via Digitalmars-d wrote:
> 08-Dec-2014 18:18, H. S. Teoh via Digitalmars-d пишет:
> >On Mon, Dec 08, 2014 at 08:33:16AM +0000, Russel Winder via Digitalmars-d wrote:
> >[...]
> >>As with any of these situation the convoluted hardcoded for a
> >>specific processor code, especially assembly language will always
> >>win. I don't care about that, I care about the fastest
> >>comprehensible code that is portable simply by compilation or
> >>execution. Based on this, Java does well, so does some Groovy
> >>perhaps surprisingly, also Scala.  C++ does well especially with TBB
> >>(though as an API it leaves a lot to be desired). D is OK but only
> >>using ldc2 or gdc, dmd sucks.
> >[...]
> >
> >Yeah, I find in my own experience that gdc -O3 tends to produce code
> >that's consistently ~20% faster than dmd -O, especially in
> >compute-intensive code.
> 
> And that's not nearly enough. Also both LDC & GDC often can't inline
> many functions from phobos due to separate compilation.
[...]

Really? Most of the Phobos function I use are templates, so inlining
shouldn't be a problem, should it? Besides, gdc is far better at
inlining that dmd ever was, though of course there are some constructs
that the front-end doesn't inline, and the backend doesn't have enough
info to do so. This is an area that should be improved.


T

-- 
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