public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug rtl-optimization/17752] New: Hot/cold basic block partitioning optimization has problems
@ 2004-09-30 17:31 ctice at apple dot com
2004-09-30 17:35 ` [Bug rtl-optimization/17752] " ctice at apple dot com
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: ctice at apple dot com @ 2004-09-30 17:31 UTC (permalink / raw)
To: gcc-bugs
- This optimization scans forward in the instruction stream (2-3 instructions for each basic block),
which is inefficient
- This optimization does not work properly with dwarf2 debug information (the assembler
complains about attempting subtraction between labels in different sections).
--
Summary: Hot/cold basic block partitioning optimization has
problems
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ctice at apple dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17752
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/17752] Hot/cold basic block partitioning optimization has problems
2004-09-30 17:31 [Bug rtl-optimization/17752] New: Hot/cold basic block partitioning optimization has problems ctice at apple dot com
@ 2004-09-30 17:35 ` ctice at apple dot com
2004-09-30 17:42 ` pinskia at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: ctice at apple dot com @ 2004-09-30 17:35 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ctice at apple dot com 2004-09-30 17:35 -------
The following patches to fix these bugs have been submitted to gcc-patches:
http://gcc.gnu.org/ml/gcc-patches/2004-08/msg02673.html
http://gcc.gnu.org/ml/gcc-patches/2004-09/msg01714.html
http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02894.html
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17752
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/17752] Hot/cold basic block partitioning optimization has problems
2004-09-30 17:31 [Bug rtl-optimization/17752] New: Hot/cold basic block partitioning optimization has problems ctice at apple dot com
2004-09-30 17:35 ` [Bug rtl-optimization/17752] " ctice at apple dot com
@ 2004-09-30 17:42 ` pinskia at gcc dot gnu dot org
2004-10-18 4:21 ` pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-09-30 17:42 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-09-30 17:42 -------
Confirmed, hopefully someone will review these soon.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Keywords| |compile-time-hog, wrong-code
Last reconfirmed|0000-00-00 00:00:00 |2004-09-30 17:42:47
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17752
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/17752] Hot/cold basic block partitioning optimization has problems
2004-09-30 17:31 [Bug rtl-optimization/17752] New: Hot/cold basic block partitioning optimization has problems ctice at apple dot com
2004-09-30 17:35 ` [Bug rtl-optimization/17752] " ctice at apple dot com
2004-09-30 17:42 ` pinskia at gcc dot gnu dot org
@ 2004-10-18 4:21 ` pinskia at gcc dot gnu dot org
2004-10-18 16:06 ` ctice at apple dot com
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-18 4:21 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-18 04:21 -------
I pinged them, hopefully someone will look into them soon :).
--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17752
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/17752] Hot/cold basic block partitioning optimization has problems
2004-09-30 17:31 [Bug rtl-optimization/17752] New: Hot/cold basic block partitioning optimization has problems ctice at apple dot com
` (2 preceding siblings ...)
2004-10-18 4:21 ` pinskia at gcc dot gnu dot org
@ 2004-10-18 16:06 ` ctice at apple dot com
2004-12-05 5:30 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: ctice at apple dot com @ 2004-10-18 16:06 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ctice at apple dot com 2004-10-18 16:06 -------
Subject: Re: Hot/cold basic block partitioning optimization has problems
Actually, I had some private communication with Zack Weinberg, Mark
Mitchell, and Richard
Henderson about the hot/cold patches. The decision was that these are
too intrusive to go
into stage 3, so I created a branch ('hot-cold-branch') to hold onto
the patches until
stage 1 opens up again.
Thanks for pursuing this Andrew.
-- Caroline Tice
ctice@apple.com
On Oct 17, 2004, at 9:21 PM, pinskia at gcc dot gnu dot org wrote:
>
> ------- Additional Comments From pinskia at gcc dot gnu dot org
> 2004-10-18 04:21 -------
> I pinged them, hopefully someone will look into them soon :).
>
> --
> What |Removed |Added
> -----------------------------------------------------------------------
> -----
> Target Milestone|--- |4.0.0
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17752
>
> ------- You are receiving this mail because: -------
> You reported the bug, or are watching the reporter.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17752
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/17752] Hot/cold basic block partitioning optimization has problems
2004-09-30 17:31 [Bug rtl-optimization/17752] New: Hot/cold basic block partitioning optimization has problems ctice at apple dot com
` (3 preceding siblings ...)
2004-10-18 16:06 ` ctice at apple dot com
@ 2004-12-05 5:30 ` pinskia at gcc dot gnu dot org
2005-03-06 15:37 ` pinskia at gcc dot gnu dot org
2005-06-12 3:29 ` pinskia at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-12-05 5:30 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.0.0 |---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17752
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/17752] Hot/cold basic block partitioning optimization has problems
2004-09-30 17:31 [Bug rtl-optimization/17752] New: Hot/cold basic block partitioning optimization has problems ctice at apple dot com
` (4 preceding siblings ...)
2004-12-05 5:30 ` pinskia at gcc dot gnu dot org
@ 2005-03-06 15:37 ` pinskia at gcc dot gnu dot org
2005-06-12 3:29 ` pinskia at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-03-06 15:37 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2004-09-30 17:42:47 |2005-03-06 15:37:17
date| |
Target Milestone|--- |4.1.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17752
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/17752] Hot/cold basic block partitioning optimization has problems
2004-09-30 17:31 [Bug rtl-optimization/17752] New: Hot/cold basic block partitioning optimization has problems ctice at apple dot com
` (5 preceding siblings ...)
2005-03-06 15:37 ` pinskia at gcc dot gnu dot org
@ 2005-06-12 3:29 ` pinskia at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-06-12 3:29 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-06-12 03:29 -------
All of these three issues have now been fixed. Closing as fixed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17752
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2005-06-12 3:29 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-09-30 17:31 [Bug rtl-optimization/17752] New: Hot/cold basic block partitioning optimization has problems ctice at apple dot com
2004-09-30 17:35 ` [Bug rtl-optimization/17752] " ctice at apple dot com
2004-09-30 17:42 ` pinskia at gcc dot gnu dot org
2004-10-18 4:21 ` pinskia at gcc dot gnu dot org
2004-10-18 16:06 ` ctice at apple dot com
2004-12-05 5:30 ` pinskia at gcc dot gnu dot org
2005-03-06 15:37 ` pinskia at gcc dot gnu dot org
2005-06-12 3:29 ` pinskia at gcc dot gnu dot org
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).