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Re: inlining failed
> On Saturday 06 September 2003 19:44, Andreas Jaeger wrote:
> > Gunther Piez <gpiez@web.de> writes:
> > > After adding a '--param max-inline-insns-single=500' everything now gets
> > > inlined like I want, even with my rusty old gcc 3.4 20030903 :-)
> >
> > The patch also implements better heuristics, try adding
> > -funit-at-a-time to your compiler to see them in effect.
>
> After adding -funit-at-a-time and compiling all sources together, once again
> some inline functions were not inlined. And after forcing them to be inlined
> with ((always_inline)) some others were not inlined. Just like I hit the
> 'max-inline-insns' limit, but even setting it to ridiculous high values
> yields no effect, the functions were still 'exlined'. So I ended up with
> ((always_inline)) for every function I want to get inlined, as before.
> But this is still with gcc-3.4 20030903, i will try it again with a fresh
> checkout.
There are another arguments limiting overall compilation unit growth and
growth of very large functions to limit exponential growth on some C++
programs. It is likely that you are fixing one of these.
I will try to get better diagnostics soon :) For now you can look
into -dU dumps.
Honza
>
> Gunther