Michel Fortin wrote:
On 2009-04-27 00:50:23 -0400, dsimcha <dsim...@yahoo.com> said:
Output:
Direct: 2343
Virtual: 5695
opApply: 3014
Nice.
Isn't there room for optimisation on the compiler side though? I mean,
the compiler could inline opApply, and while doing so it could notice
that the delegate is constant and inline it too.
For non-virtual opApply this is exactly what LDC does[1] at the higher
optimization levels :).
(Assuming both opApply and the foreach body are deemed inline-worthy by the
inliner)
[1]: Since trunk r1219, which was about 11 days ago.
> I suspect that adding
> this optimisation would put opApply at the same performance level than
> ranges.
I haven't actually measured to see if this is true, but there should indeed be
very little difference since this optimization essentially turns opApply into a
regular loop (and LDC does this before any loop optimizations run).
