This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: An unusual Performance approach using Synthetic registers
- From: Denis Chertykov <denisc at overta dot ru>
- To: dewar at gnat dot com (Robert Dewar)
- Cc: ja_walker at earthlink dot net, zack at codesourcery dot com, dnovillo at acm dot org, gcc at gcc dot gnu dot org, sabre at nondot dot org
- Date: 04 Jan 2003 20:59:01 +0300
- Subject: Re: An unusual Performance approach using Synthetic registers
- References: <20030104144949.982B0F2D8C@nile.gnat.com>
dewar@gnat.com (Robert Dewar) writes:
> > What I think Diego is trying to say is, creating synthetic registers
> > for the x86 isn't going to help much, possibly not at all, because the
> > optimizer passes that could benefit already have unlimited registers
> > to work with.
>
> I would put it a different way. If "synthetic registers" help, it would
> just indicate that the optimizer and code generator is operating very
> poorly.
It's indicate that register allocator is operating very poorly or just
dumb.
Denis.