public inbox for gcc@gcc.gnu.org
 help / color / mirror / Atom feed
From: Mike Stump <mrs@apple.com>
To: N V Krishna <nvk@cs.purdue.edu>
Cc: gcc@gnu.org
Subject: Re: rtl
Date: Fri, 04 Oct 2002 12:00:00 -0000	[thread overview]
Message-ID: <664635FE-D7C7-11D6-ACE8-000393941EE6@apple.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0210040144350.16972-100000@puma.cs.purdue.edu>

On Thursday, October 3, 2002, at 11:51 PM, N V Krishna wrote:
> the definition of rtx, the field fld is an array of size 1, declared 
> as :
>
> rtunion fld[1];
>
> However, I see that there are uses as :
>
> #define SET_DEST(RTX) ((RTX)->fld[0].rtx)
> #define SET_SRC(RTX) ((RTX)->fld[1].rtx)
>
> Am I missing something obvious?

I'd just recommend ignoring it, unless you want to learn more than you 
wanted to know.  If you want to learn, set a breakpoint at something 
that allocates an rtx and say step.  You will then `see' how this 
works.  This is only one weird thing out of the thousands of weird 
things gcc does.

  parent reply	other threads:[~2002-10-04 18:30 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-10-04  1:36 rtl N V Krishna
2002-10-04  7:07 ` rtl Shekhar Divekar
2002-10-04 12:00 ` Mike Stump [this message]
2003-08-27 17:47 RTL SRUTHY C.N.
2003-08-27 18:08 ` RTL SRUTHY C.N.
2003-08-28  0:47 ` RTL Jim Wilson
2003-08-29 14:24 RTL SRUTHY C.N.
2003-08-29 14:41 ` RTL SRUTHY C.N.
2003-09-25  4:37 RTL Sruthy C.N
2003-09-25  4:38 ` RTL Sruthy C.N
2003-09-25  5:02 ` RTL Jim Wilson
2003-09-30 12:45   ` RTL Sruthy C.N
2003-10-06 23:27     ` RTL Jim Wilson
2003-09-30 13:12   ` RTL Sruthy C.N

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=664635FE-D7C7-11D6-ACE8-000393941EE6@apple.com \
    --to=mrs@apple.com \
    --cc=gcc@gnu.org \
    --cc=nvk@cs.purdue.edu \
    /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).