public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "steven at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/38474] slow compilation at -O0 (callgraph optimization, inline heuristics, expand )
Date: Mon, 15 Dec 2008 21:56:00 -0000 [thread overview]
Message-ID: <20081215215512.11118.qmail@sourceware.org> (raw)
In-Reply-To: <bug-38474-6642@http.gcc.gnu.org/bugzilla/>
------- Comment #15 from steven at gcc dot gnu dot org 2008-12-15 21:55 -------
>From cfgexpand.c:
static void
add_alias_set_conflicts (void)
{
size_t i, j, n = stack_vars_num;
for (i = 0; i < n; ++i)
{
tree type_i = TREE_TYPE (stack_vars[i].decl);
bool aggr_i = AGGREGATE_TYPE_P (type_i);
bool contains_union;
contains_union = aggregate_contains_union_type (type_i);
for (j = 0; j < i; ++j)
{
Classic example of quadratic algorithm...
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38474
next prev parent reply other threads:[~2008-12-15 21:56 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-10 15:26 [Bug middle-end/38474] New: slow compilation at -O0 (callgraph optimization, inline heuristics, ggc " jv244 at cam dot ac dot uk
2008-12-10 15:27 ` [Bug middle-end/38474] " jv244 at cam dot ac dot uk
2008-12-10 15:41 ` [Bug middle-end/38474] slow compilation at -O0 (callgraph optimization, inline heuristics, " rguenth at gcc dot gnu dot org
2008-12-10 16:14 ` jv244 at cam dot ac dot uk
2008-12-10 16:58 ` rguenth at gcc dot gnu dot org
2008-12-10 22:35 ` jv244 at cam dot ac dot uk
2008-12-10 22:49 ` rguenth at gcc dot gnu dot org
2008-12-10 22:58 ` jv244 at cam dot ac dot uk
2008-12-11 8:28 ` jv244 at cam dot ac dot uk
2008-12-11 11:35 ` rguenth at gcc dot gnu dot org
2008-12-11 12:04 ` jv244 at cam dot ac dot uk
2008-12-15 19:39 ` jv244 at cam dot ac dot uk
2008-12-15 21:19 ` steven at gcc dot gnu dot org
2008-12-15 21:29 ` steven at gcc dot gnu dot org
2008-12-15 21:54 ` steven at gcc dot gnu dot org
2008-12-15 21:56 ` steven at gcc dot gnu dot org [this message]
2008-12-15 21:57 ` steven at gcc dot gnu dot org
2008-12-16 7:52 ` jv244 at cam dot ac dot uk
2008-12-16 11:59 ` jv244 at cam dot ac dot uk
2008-12-16 12:46 ` steven at gcc dot gnu dot org
2008-12-16 12:48 ` jv244 at cam dot ac dot uk
2008-12-16 12:50 ` jv244 at cam dot ac dot uk
2008-12-16 13:43 ` steven at gcc dot gnu dot org
2008-12-16 14:19 ` jv244 at cam dot ac dot uk
2008-12-16 14:21 ` jv244 at cam dot ac dot uk
2008-12-16 16:19 ` jv244 at cam dot ac dot uk
2008-12-16 16:28 ` steven at gcc dot gnu dot org
2008-12-16 16:31 ` jv244 at cam dot ac dot uk
2008-12-16 19:35 ` [Bug middle-end/38474] [4.3/4.4 Regression] " pinskia at gcc dot gnu dot org
2008-12-16 20:32 ` jv244 at cam dot ac dot uk
2008-12-17 6:52 ` jv244 at cam dot ac dot uk
2008-12-17 7:03 ` steven at gcc dot gnu dot org
2008-12-17 8:37 ` jv244 at cam dot ac dot uk
2008-12-17 12:59 ` jv244 at cam dot ac dot uk
2008-12-17 19:42 ` steven at gcc dot gnu dot org
2008-12-20 9:00 ` jv244 at cam dot ac dot uk
2008-12-20 9:56 ` steven at gcc dot gnu dot org
2008-12-20 11:33 ` [Bug middle-end/38474] [Meta] " jv244 at cam dot ac dot uk
2008-12-20 15:51 ` steven at gcc dot gnu dot org
2009-01-24 10:27 ` rguenth at gcc dot gnu dot org
2009-08-04 12:45 ` rguenth at gcc dot gnu dot org
2009-11-27 8:52 ` jv244 at cam dot ac dot uk
2009-11-27 9:00 ` jv244 at cam dot ac dot uk
2009-11-27 10:50 ` rguenth at gcc dot gnu dot org
2009-12-03 13:37 ` matz at gcc dot gnu dot org
2009-12-03 17:48 ` jv244 at cam dot ac dot uk
2009-12-03 21:05 ` matz at gcc dot gnu dot org
2009-12-08 13:56 ` matz at gcc dot gnu dot org
2010-05-22 18:33 ` rguenth at gcc dot gnu dot org
2010-05-23 6:31 ` jv244 at cam dot ac dot uk
2010-05-23 20:09 ` rguenth at gcc dot gnu dot org
2010-05-23 21:03 ` [Bug middle-end/38474] slow compilation at -O0 due to expand's temp slot goo steven at gcc dot gnu dot org
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=20081215215512.11118.qmail@sourceware.org \
--to=gcc-bugzilla@gcc.gnu.org \
--cc=gcc-bugs@gcc.gnu.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).