public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug debug/44375] New: goto_locus lost at -O0 during cfg cleanup
@ 2010-06-02 10:30 jakub at gcc dot gnu dot org
2010-06-02 10:37 ` [Bug debug/44375] " jakub at gcc dot gnu dot org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-06-02 10:30 UTC (permalink / raw)
To: gcc-bugs
As mentioned in
http://gcc.gnu.org/ml/gcc-patches/2010-06/msg00115.html
for -O0 we sometimes, e.g. for return without value or for C++ NRV optimized
return don't emit any insns with the location of the return stmt, which results
in worse debug experience.
--
Summary: goto_locus lost at -O0 during cfg cleanup
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jakub at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44375
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug debug/44375] goto_locus lost at -O0 during cfg cleanup
2010-06-02 10:30 [Bug debug/44375] New: goto_locus lost at -O0 during cfg cleanup jakub at gcc dot gnu dot org
@ 2010-06-02 10:37 ` jakub at gcc dot gnu dot org
2010-06-02 11:33 ` jakub at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-06-02 10:37 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from jakub at gcc dot gnu dot org 2010-06-02 10:36 -------
Created an attachment (id=20806)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20806&action=view)
gcc46-pr44375.patch
One possible fix. Another is to insert GIMPLE_NOP with the location and handle
it during expansion (for -O0 of course).
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org
|dot org |
Status|UNCONFIRMED |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44375
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug debug/44375] goto_locus lost at -O0 during cfg cleanup
2010-06-02 10:30 [Bug debug/44375] New: goto_locus lost at -O0 during cfg cleanup jakub at gcc dot gnu dot org
2010-06-02 10:37 ` [Bug debug/44375] " jakub at gcc dot gnu dot org
@ 2010-06-02 11:33 ` jakub at gcc dot gnu dot org
2010-06-02 13:33 ` [Bug debug/44375] New: " Andrew Pinski
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-06-02 11:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from jakub at gcc dot gnu dot org 2010-06-02 11:33 -------
Created an attachment (id=20808)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20808&action=view)
gcc46-pr44375.patch
Alternative patch.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44375
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Bug debug/44375] New: goto_locus lost at -O0 during cfg cleanup
2010-06-02 10:30 [Bug debug/44375] New: goto_locus lost at -O0 during cfg cleanup jakub at gcc dot gnu dot org
2010-06-02 10:37 ` [Bug debug/44375] " jakub at gcc dot gnu dot org
2010-06-02 11:33 ` jakub at gcc dot gnu dot org
@ 2010-06-02 13:33 ` Andrew Pinski
2010-06-02 13:34 ` [Bug debug/44375] " pinskia at gmail dot com
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Andrew Pinski @ 2010-06-02 13:33 UTC (permalink / raw)
To: gcc-bugzilla; +Cc: gcc-bugs
I think this is a dup of a much older bug.
Sent from my iPhone
On Jun 2, 2010, at 3:30 AM, "jakub at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org
> wrote:
> As mentioned in
> http://gcc.gnu.org/ml/gcc-patches/2010-06/msg00115.html
> for -O0 we sometimes, e.g. for return without value or for C++ NRV
> optimized
> return don't emit any insns with the location of the return stmt,
> which results
> in worse debug experience.
>
>
> --
> Summary: goto_locus lost at -O0 during cfg cleanup
> Product: gcc
> Version: 4.6.0
> Status: UNCONFIRMED
> Severity: normal
> Priority: P3
> Component: debug
> AssignedTo: unassigned at gcc dot gnu dot org
> ReportedBy: jakub at gcc dot gnu dot org
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44375
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug debug/44375] goto_locus lost at -O0 during cfg cleanup
2010-06-02 10:30 [Bug debug/44375] New: goto_locus lost at -O0 during cfg cleanup jakub at gcc dot gnu dot org
` (2 preceding siblings ...)
2010-06-02 13:33 ` [Bug debug/44375] New: " Andrew Pinski
@ 2010-06-02 13:34 ` pinskia at gmail dot com
2010-06-02 15:29 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gmail dot com @ 2010-06-02 13:34 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from pinskia at gmail dot com 2010-06-02 13:33 -------
Subject: Re: New: goto_locus lost at -O0 during cfg cleanup
I think this is a dup of a much older bug.
Sent from my iPhone
On Jun 2, 2010, at 3:30 AM, "jakub at gcc dot gnu dot org"
<gcc-bugzilla@gcc.gnu.org
> wrote:
> As mentioned in
> http://gcc.gnu.org/ml/gcc-patches/2010-06/msg00115.html
> for -O0 we sometimes, e.g. for return without value or for C++ NRV
> optimized
> return don't emit any insns with the location of the return stmt,
> which results
> in worse debug experience.
>
>
> --
> Summary: goto_locus lost at -O0 during cfg cleanup
> Product: gcc
> Version: 4.6.0
> Status: UNCONFIRMED
> Severity: normal
> Priority: P3
> Component: debug
> AssignedTo: unassigned at gcc dot gnu dot org
> ReportedBy: jakub at gcc dot gnu dot org
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44375
>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44375
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug debug/44375] goto_locus lost at -O0 during cfg cleanup
2010-06-02 10:30 [Bug debug/44375] New: goto_locus lost at -O0 during cfg cleanup jakub at gcc dot gnu dot org
` (3 preceding siblings ...)
2010-06-02 13:34 ` [Bug debug/44375] " pinskia at gmail dot com
@ 2010-06-02 15:29 ` pinskia at gcc dot gnu dot org
2010-06-03 12:08 ` jakub at gcc dot gnu dot org
2010-07-27 8:58 ` jakub at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2010-06-02 15:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pinskia at gcc dot gnu dot org 2010-06-02 15:29 -------
I think this is related to PR 12076.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44375
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug debug/44375] goto_locus lost at -O0 during cfg cleanup
2010-06-02 10:30 [Bug debug/44375] New: goto_locus lost at -O0 during cfg cleanup jakub at gcc dot gnu dot org
` (4 preceding siblings ...)
2010-06-02 15:29 ` pinskia at gcc dot gnu dot org
@ 2010-06-03 12:08 ` jakub at gcc dot gnu dot org
2010-07-27 8:58 ` jakub at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-06-03 12:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from jakub at gcc dot gnu dot org 2010-06-03 12:07 -------
Subject: Bug 44375
Author: jakub
Date: Thu Jun 3 12:07:18 2010
New Revision: 160219
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=160219
Log:
PR debug/44375
* tree-cfg.c (gimple_can_merge_blocks_p): For -O0
return false if merging the bbs would lead to goto_locus
location being lost from the IL.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-cfg.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44375
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug debug/44375] goto_locus lost at -O0 during cfg cleanup
2010-06-02 10:30 [Bug debug/44375] New: goto_locus lost at -O0 during cfg cleanup jakub at gcc dot gnu dot org
` (5 preceding siblings ...)
2010-06-03 12:08 ` jakub at gcc dot gnu dot org
@ 2010-07-27 8:58 ` jakub at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-07-27 8:58 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from jakub at gcc dot gnu dot org 2010-07-27 08:58 -------
Fixed.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44375
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2010-07-27 8:58 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-06-02 10:30 [Bug debug/44375] New: goto_locus lost at -O0 during cfg cleanup jakub at gcc dot gnu dot org
2010-06-02 10:37 ` [Bug debug/44375] " jakub at gcc dot gnu dot org
2010-06-02 11:33 ` jakub at gcc dot gnu dot org
2010-06-02 13:33 ` [Bug debug/44375] New: " Andrew Pinski
2010-06-02 13:34 ` [Bug debug/44375] " pinskia at gmail dot com
2010-06-02 15:29 ` pinskia at gcc dot gnu dot org
2010-06-03 12:08 ` jakub at gcc dot gnu dot org
2010-07-27 8:58 ` jakub 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).