From: Jan Hubicka <jh@suse.cz>
To: Richard Henderson <rth@cygnus.com>
Cc: gcc@gcc.gnu.org
Subject: Re: pre_inc/pre_dec/PUSH_ROUNDING inconsistency
Date: Mon, 17 Jul 2000 14:10:00 -0000 [thread overview]
Message-ID: <20000717231040.F27658@atrey.karlin.mff.cuni.cz> (raw)
In-Reply-To: <20000717140714.D13024@cygnus.com>
> On Sun, Jul 16, 2000 at 04:04:20PM +0200, Jan Hubicka wrote:
> > What do you think is the correct way off this situation? Modify the
> > emit_push_insn in explow.c to change push insn representation for example
> > to something like:
> > (set (mem/f:DI (pre_dec:DI (reg:DI sp)) (subreg:DI val)))
> > since thats what the instruction does?
>
> I would think that widening the store like this to reflect the
> actual instruction is the only correct solution.
Yes, but whats about the floating point stores. I remember Jeff claiming
that (subreg:TF (reg:XF)) is incorrect...
is (subreg:TI (reg:XF)) better?
>
> > (can I easilly convert number of bytes returned by push_rounding to mode?)
>
> See smallest_mode_for_size.
Duh :)
Honza
>
>
> r~
next prev parent reply other threads:[~2000-07-17 14:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-07-16 7:04 Jan Hubicka
2000-07-17 14:07 ` Richard Henderson
2000-07-17 14:10 ` Jan Hubicka [this message]
2000-07-17 14:16 ` Richard Henderson
2000-07-17 14:25 ` Jan Hubicka
2000-07-17 16:01 ` Richard Henderson
2000-07-18 1:31 ` Jan Hubicka
2000-07-28 15:17 ` Jan Hubicka
2000-07-29 12:30 ` Richard Henderson
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