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Re: new-regalloc.c patch
- To: Denis Chertykov <denisc at overta dot ru>
- Subject: Re: new-regalloc.c patch
- From: Daniel Berlin <dberlin at redhat dot com>
- Date: Sat, 3 Feb 2001 12:33:12 -0500 (EST)
- cc: Daniel Berlin <dberlin at redhat dot com>, <gcc-patches at gcc dot gnu dot org>
> You say that edge weight of v1 and v2 equal to
> MAX (v1 hard regs, v2 hard regs).
>
> Is this true ?
Yes.
Assuming the registers must be consecutive.
>
> > > > > On some machines, double-precision values must be kept in even/odd
> > > > > register pairs. The way to implement that is to define this macro
> > > > > to reject odd register numbers for such modes.
> > > > > --------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > > >
> > > > Wheee.
> > > >
> > > > Let me double check that the change doesn't break anything for weird
> > > > reasons, and i'll check it in as well.
> > >
> > > Is you agree here (remove HARD_REGNO_MODE_OK) ?
> > >
> > Yeah.
>
> It is a real and simple bug.
>
> What is "Yeah" ? I can't understand you.
>
Yeah = yes.