On 6 April 2013 12:09, bearophile <bearophileHUGS@lycos.com> wrote:

I remember Walter saying two or more times that the semantics of D offers some optimization opportunities that probably are not yet used to try to reduce the run-time of D programs. Is Walter willing to write down a list of such opportunities? (Ideas from other persons are welcome). Maybe some LDC/GDC developer will make the GCC/LLVM back-ends use them. The implementation of those ideas will require some time, so later it's better to put the list in the D wiki.

Bye,
bearophile

This information could possibly be helpful. Though given that most of (gdc) codegen is on par with g++, there's probably not much on the list that isn't already detected by the backend optimisation passes.

--
Iain Buclaw

*(p < e ? p++ : p) = (c & 0x0f) + '0';