On Mon, Jul 03, 2017 at 11:49:56AM -0700, Walter Bright via Digitalmars-d wrote: [...]
> Keep in mind that today's optimizers are pretty much tuned to what works for C++. While D's particular semantics offer opportunities for optimizations, they are currently pretty much unexploited.

So what stops us from actually exploiting them in dmd's optimizer?


T

-- 
Knowledge is that area of ignorance that we arrange and classify. -- Ambrose Bierce

On 7/3/2017 5:29 PM, H. S. Teoh via Digitalmars-d wrote:
> So what stops us from actually exploiting them in dmd's optimizer?

Nothing. Pull requests are welcome!

On Tue, Jul 04, 2017 at 12:30:20AM -0700, Walter Bright via Digitalmars-d wrote:
> On 7/3/2017 5:29 PM, H. S. Teoh via Digitalmars-d wrote:
> > So what stops us from actually exploiting them in dmd's optimizer?
> 
> Nothing. Pull requests are welcome!

Sure, but it would be helpful if we knew what are some of the things about D semantics that the optimizer could take advantage of, that it currently doesn't yet.  Do you have a (not necessarily complete) list somewhere?


T

-- 
Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. -- Brian W. Kernighan