From: Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
To: law@cygnus.com
Cc: Richard Henderson <rth@cygnus.com>, egcs@egcs.cygnus.com
Subject: Re: Target CPU default selection on alpha
Date: Mon, 21 Dec 1998 11:23:00 -0000 [thread overview]
Message-ID: <13950.40985.756783.276976@xayide.TechFak.Uni-Bielefeld.DE> (raw)
In-Reply-To: <8333.914215139@upchuck>
> The PA (and other) ports have always done it like the alpha too.
From a quick check of current CVS configure.in, the c*-convex-*, several
hppa1.1-*-* and hppa2*-*-*, the i[4-7]86-*-* and alpha*-*-* targets behave
this way. All others default to the least common denominator.
> There isn't any kind of consistency in this area. For example the ppc
> defaults to "common" mode.
Than perhaps now it's time to become consistent, or at least document why
some targets have a different default.
> It's not 100% clear that either choice is right. There's arguments for
> and against defaulting to the least common denominator for code generation.
What are the primary arguments against defaulting to least common
denominator, beyond performance?
I think the decision should be left to the user. Or at least the user
should be aware of the choice and it's consequences.
Rainer
next prev parent reply other threads:[~1998-12-21 11:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-12-18 13:26 Rainer Orth
1998-12-18 19:59 ` Jeffrey A Law
1998-12-18 20:31 ` Richard Henderson
1998-12-21 6:05 ` Jeffrey A Law
1998-12-21 8:31 ` David Edelsohn
1998-12-22 13:02 ` Jeffrey A Law
1998-12-21 11:23 ` Rainer Orth [this message]
1998-12-22 12:05 ` Jeffrey A Law
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=13950.40985.756783.276976@xayide.TechFak.Uni-Bielefeld.DE \
--to=ro@techfak.uni-bielefeld.de \
--cc=egcs@egcs.cygnus.com \
--cc=law@cygnus.com \
--cc=rth@cygnus.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).