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Re: x86 optimization and rtx_cost question
Richard Henderson wrote:
>
> On Fri, Jan 11, 2002 at 03:42:59PM -0600, Tom Crispin wrote:
> > But is there any code that worries about address generation interlock?
>
> Not outside the scheduler, no.
>
> > And shouldn't the decision about which to use depend on whether or not
> > we can schedule instructions into the interlock slots?
>
> Ideally, yes. But that is a severe phase ordering problem, and
> there's no way to get that sort of information when you want it.
>
> r~
Well, I don't see where in the scheduler there is code to check for AGI
- maybe I'm looking in the wrong place. I'll do some debugging
dumps....
Thanks
--
Tom Crispin
Centaur Technology
512-493-8625
crispin@centtech.com