Show us the code and how you invoked DMD. I'm sure there are experts lurking around here ready to investigate. ;)
On 12/12/10, Brad Roberts <[email protected]> wrote: > On 12/11/2010 8:22 PM, Craig Black wrote: >> I did some benchmarking with a simple quick sort algorithm and was very >> disappointed that dmd was over twice as slow as Visual C++. Investigation >> revealed most of the slowness was due to the fact that dmd was not >> inlining a >> simple function that returned a reference. After hand-inlining some code, >> I got >> within 20% of the performance of Visual C++. I don't see this as >> acceptable. >> The main reason that I want to use D is so that my code will be cleaner. >> If I >> have to inline my own functions then this will not result in clean code. >> >> Anyway, has anyone else had problems with dmd's inliner? Should I post a >> bug >> report or has someone else already complained about this? >> >> -Craig > > There's a number of things that currently stop dmd from inlining. Several > exist > as bug reports. I don't recall if there's one about ref return results or > not. > These limitations are certainly worth working to lift, but they're lower > priority than a lot of other bugs. That said, they're the sort of thing I > enjoy > trying to fix, so go ahead and file a nice tiny test case. > > As always, if there's issues you care a lot about, the source code for the > compiler is there for anyone to work with. > > Later, > Brad >
