Re: Bootstrap times on mainline are getting worse

[Zack Weinberg <zack at codesourcery dot com>]

On Sat, Oct 19, 2002 at 12:47:04PM -0600, Roger Sayle wrote:
> 
> > I still think it's worth shrinking processor_costs - we're getting
> > nickled and dimed to death on cache utilization, and this is a cheap
> > way to get quite a bit of space back.
> 
> I agree it does no harm, and potentially some good.

Thinking about it a bit more, the gain could be totally wiped out by
having to do more work to access byte fields.  I don't think this is a
problem for an x86 native compiler, but it'd be useful to
know. Sebastian, could you post size -A reports for stage3 cc1 before
and after the patch?

> Saving a few hundred bytes is a step in the right direction, even if
> it'll have little overall effect on GCC's multi-megabyte memory
> footprint.

I should finish the bytecoded-insn-recog.c patch RTH and I started
back in 1999.  How does ~200K off the size of the text segment sound?
(at a cost of 20-50K in .rodata, IIRC)

zw