From: Alexandre Oliva <aoliva@redhat.com>
To: Richard Sandiford <rsandifo@redhat.com>
Cc: Kazu Hirata <kazu@cs.umass.edu>, gcc-patches@gcc.gnu.org
Subject: Re: add h8sx support to h8300
Date: Wed, 14 Jul 2004 12:49:00 -0000 [thread overview]
Message-ID: <or658rp7xk.fsf@livre.redhat.lsd.ic.unicamp.br> (raw)
In-Reply-To: <87r7rh8hx8.fsf@redhat.com>
On Jul 12, 2004, Richard Sandiford <rsandifo@redhat.com> wrote:
> The built-in-setjmp.c -O3 -fomit-frame-pointer failure (which, to remind
> anyone else reading, is there with and without the patch below) does show
> up a problem. And this might well be the problem you were trying to explain
> above. (Sorry if so! I couldn't quite follow what you were saying.)
Yup, exactly the same problem.
> So it seems you just can't have a register class that includes only
> the frame pointer.
Yup.
> ! if (!regs_ever_live[HFP_REG])
> ! return NO_REGS;
I had both HFP_REG and FP_REG at some point. I thought this would
minimize the risk of running into the failure case. Don't you think
so?
--
Alexandre Oliva http://www.ic.unicamp.br/~oliva/
Red Hat Compiler Engineer aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist oliva@{lsd.ic.unicamp.br, gnu.org}
next prev parent reply other threads:[~2004-07-14 3:46 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-21 14:24 Alexandre Oliva
2004-06-21 17:12 ` Kazu Hirata
2004-06-23 2:23 ` Alexandre Oliva
2004-07-07 22:11 ` Alexandre Oliva
2004-07-08 6:08 ` Richard Sandiford
2004-07-08 7:41 ` Alexandre Oliva
2004-07-08 9:39 ` Richard Sandiford
2004-07-08 18:16 ` Alexandre Oliva
2004-07-08 18:16 ` Richard Sandiford
2004-07-08 20:23 ` Alexandre Oliva
2004-07-12 20:14 ` Richard Sandiford
2004-07-14 12:49 ` Alexandre Oliva [this message]
2004-07-14 17:16 ` Richard Sandiford
2004-07-15 4:11 ` Alexandre Oliva
2004-07-15 5:22 ` Richard Sandiford
2004-07-15 16:25 ` Alexandre Oliva
2004-07-15 17:14 ` Richard Sandiford
2004-07-15 17:25 ` Richard Sandiford
2004-07-15 22:23 ` Alexandre Oliva
2004-07-08 21:20 ` Alexandre Oliva
2004-07-06 20:56 ` Alexandre Oliva
2004-07-07 2:37 ` Richard Henderson
2004-07-07 7:06 ` Alexandre Oliva
2004-07-07 9:06 ` Richard Henderson
2004-07-08 0:14 ` Alexandre Oliva
2004-07-08 1:22 ` Richard Henderson
2004-07-08 1:26 ` Alexandre Oliva
2004-07-08 2:01 ` Richard Henderson
2004-07-08 4:39 ` Alexandre Oliva
2004-07-08 18:59 ` Alexandre Oliva
2004-07-07 9:13 ` Joseph S. Myers
2004-07-07 19:44 ` Alexandre Oliva
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