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 target/38629] target-specific parameters for inline heuristics not defined for AVR
Date: Fri, 26 Dec 2008 15:41:00 -0000 [thread overview]
Message-ID: <20081226153849.22619.qmail@sourceware.org> (raw)
In-Reply-To: <bug-38629-17118@http.gcc.gnu.org/bugzilla/>
------- Comment #1 from steven at gcc dot gnu dot org 2008-12-26 15:38 -------
GCC inline heuristics are just that: heuristics. They are not optimal for all
targets but only for those targets that they have been tuned for.
For AVR, nobody ever tuned the heuristics, despite several suggestions (see
e.g. bug 30908). In this case, PARAM_INLINE_CALL_COST and MOVE_RATIO should be
tuned for AVR.
Therefore, target enhancement request.
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|major |enhancement
Status|UNCONFIRMED |NEW
Component|c |target
Ever Confirmed|0 |1
GCC host triplet|i386/cygwin |
Last reconfirmed|0000-00-00 00:00:00 |2008-12-26 15:38:49
date| |
Summary|gcc version 4.2.x, 4.3.x and|target-specific parameters
|4.4.0 are doing (too much) |for inline heuristics not
|automatic inlining with -O1,|defined for AVR
|-O2 and -Os |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38629
next prev parent reply other threads:[~2008-12-26 15:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-26 14:58 [Bug c/38629] New: gcc version 4.2.x, 4.3.x and 4.4.0 are doing (too much) automatic inlining with -O1, -O2 and -Os cbm at d81 dot de
2008-12-26 15:41 ` steven at gcc dot gnu dot org [this message]
2008-12-26 21:30 ` [Bug target/38629] target-specific parameters for inline heuristics not defined for AVR forwards dot from dot bugzilla at d81 dot de
2008-12-26 21:36 ` pinskia at gcc dot gnu dot org
2008-12-29 20:14 ` rguenth at gcc dot gnu dot org
[not found] <bug-38629-4@http.gcc.gnu.org/bugzilla/>
2010-11-10 20:19 ` hubicka at gcc dot gnu.org
2010-11-10 20:52 ` hubicka at gcc dot gnu.org
2015-04-09 15:43 ` federico at fsfe dot org
2015-04-09 15:47 ` federico at fsfe 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=20081226153849.22619.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).