public inbox for gcc@gcc.gnu.org
 help / color / mirror / Atom feed
From: law@redhat.com
To: Andrew MacLeod <amacleod@redhat.com>
Cc: Geoff Keating <geoffk@geoffk.org>, gcc mailing list <gcc@gcc.gnu.org>
Subject: Re: [tree-ssa][ GC, Virtual operands, and GCing between passes
Date: Thu, 11 Dec 2003 19:30:00 -0000	[thread overview]
Message-ID: <200312111930.hBBJUXqZ024742@speedy.slc.redhat.com> (raw)
In-Reply-To: Your message of "09 Dec 2003 19:37:53 EST." <1071016677.17667.2918.camel@p4>

In message <1071016677.17667.2918.camel@p4>, Andrew MacLeod writes:
 >
 >I have array of pointers to trees.
 >
 >so 
 >
 >tree **defs;
Really pointers to pointers to trees.


 >I don't want what defs points to to be marked, since they are marked
 >otherwise, I just need the defs vector itself collected:
Is that really the reason why you're going through these contortions?  Does
it really buy us any measurable improvement?

I wouldn't expect a huge overhead to check the mark on an object that we
marked via some other chain of pointers.  But hey, maybe I'm wrong :-)

jeff

  parent reply	other threads:[~2003-12-11 19:30 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-09 20:26 Andrew MacLeod
2003-12-09 23:43 ` Geoff Keating
2003-12-10  4:46   ` Andrew MacLeod
2003-12-11 17:01     ` Geoff Keating
2003-12-11 17:17       ` Andrew MacLeod
2003-12-11 21:15         ` Geoff Keating
2003-12-11 23:31           ` Andrew MacLeod
2003-12-15 22:05             ` Richard Henderson
2003-12-15 22:46               ` Andrew MacLeod
2003-12-11 19:30     ` law [this message]
2003-12-11 23:13       ` Andrew MacLeod
2003-12-12  0:21         ` law
2003-12-12  3:29           ` Andrew MacLeod
2003-12-12  5:24             ` law
2003-12-12 13:38               ` Andrew MacLeod
2003-12-13  6:52                 ` law
2003-12-11 14:17   ` Andrew MacLeod
2003-12-10  0:03 ` Jan Hubicka
2003-12-10  0:18   ` Andrew MacLeod
2003-12-10  0:38     ` Jan Hubicka
2003-12-11 19:30 ` law
2003-12-11 14:27 S. Bosscher
2003-12-11 14:34 ` Andrew MacLeod
2003-12-11 15:01   ` Andrew MacLeod

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=200312111930.hBBJUXqZ024742@speedy.slc.redhat.com \
    --to=law@redhat.com \
    --cc=amacleod@redhat.com \
    --cc=gcc@gcc.gnu.org \
    --cc=geoffk@geoffk.org \
    /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).