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* [Bug lto/47924] New: [4.6 Regression] Missed optimization with LTO
@ 2011-02-28 14:47 d.g.gorbachev at gmail dot com
2011-02-28 14:51 ` [Bug lto/47924] " d.g.gorbachev at gmail dot com
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-02-28 14:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47924
Summary: [4.6 Regression] Missed optimization with LTO
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: d.g.gorbachev@gmail.com
Created attachment 23491
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23491
Compile with -O2 -flto
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug lto/47924] [4.6 Regression] Missed optimization with LTO
2011-02-28 14:47 [Bug lto/47924] New: [4.6 Regression] Missed optimization with LTO d.g.gorbachev at gmail dot com
@ 2011-02-28 14:51 ` d.g.gorbachev at gmail dot com
2011-02-28 15:19 ` d.g.gorbachev at gmail dot com
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-02-28 14:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47924
--- Comment #1 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-02-28 14:47:26 UTC ---
Created attachment 23492
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23492
Generated asm
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug lto/47924] [4.6 Regression] Missed optimization with LTO
2011-02-28 14:47 [Bug lto/47924] New: [4.6 Regression] Missed optimization with LTO d.g.gorbachev at gmail dot com
2011-02-28 14:51 ` [Bug lto/47924] " d.g.gorbachev at gmail dot com
@ 2011-02-28 15:19 ` d.g.gorbachev at gmail dot com
2011-02-28 15:20 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-02-28 15:19 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47924
--- Comment #2 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-02-28 14:48:01 UTC ---
Created attachment 23493
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23493
Testcase #2
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug lto/47924] [4.6 Regression] Missed optimization with LTO
2011-02-28 14:47 [Bug lto/47924] New: [4.6 Regression] Missed optimization with LTO d.g.gorbachev at gmail dot com
2011-02-28 14:51 ` [Bug lto/47924] " d.g.gorbachev at gmail dot com
2011-02-28 15:19 ` d.g.gorbachev at gmail dot com
@ 2011-02-28 15:20 ` rguenth at gcc dot gnu.org
2011-02-28 16:16 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-02-28 15:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47924
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.02.28 15:19:15
AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org
|gnu.org |
Target Milestone|--- |4.6.0
Ever Confirmed|0 |1
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-28 15:19:15 UTC ---
Confirmed.
I'll have a looksee.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug lto/47924] [4.6 Regression] Missed optimization with LTO
2011-02-28 14:47 [Bug lto/47924] New: [4.6 Regression] Missed optimization with LTO d.g.gorbachev at gmail dot com
` (2 preceding siblings ...)
2011-02-28 15:20 ` rguenth at gcc dot gnu.org
@ 2011-02-28 16:16 ` rguenth at gcc dot gnu.org
2011-03-01 9:46 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-02-28 16:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47924
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-28 15:54:55 UTC ---
Hmm. TYPE_CANONICAL seems to be broken (NULL) and we use alias-set 0 for both
int and short. Probably because of
/* Type merging will get confused by the canonical types as they
are set by the middle-end. */
if (in_lto_p)
TYPE_CANONICAL (node) = NULL_TREE;
*nodep = node = gimple_register_type (node);
we are missing to register the canonical type here.
I have a patch.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug lto/47924] [4.6 Regression] Missed optimization with LTO
2011-02-28 14:47 [Bug lto/47924] New: [4.6 Regression] Missed optimization with LTO d.g.gorbachev at gmail dot com
` (3 preceding siblings ...)
2011-02-28 16:16 ` rguenth at gcc dot gnu.org
@ 2011-03-01 9:46 ` rguenth at gcc dot gnu.org
2011-03-01 9:47 ` rguenth at gcc dot gnu.org
2011-03-02 0:45 ` jamborm at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-03-01 9:46 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47924
--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-01 09:46:22 UTC ---
Author: rguenth
Date: Tue Mar 1 09:46:19 2011
New Revision: 170589
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170589
Log:
2011-03-01 Richard Guenther <rguenther@suse.de>
PR lto/47924
* lto-streamer.c (lto_record_common_node): Also register
the canonical type.
* gcc.dg/lto/pr47924_0.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/lto/pr47924_0.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/lto-streamer.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug lto/47924] [4.6 Regression] Missed optimization with LTO
2011-02-28 14:47 [Bug lto/47924] New: [4.6 Regression] Missed optimization with LTO d.g.gorbachev at gmail dot com
` (4 preceding siblings ...)
2011-03-01 9:46 ` rguenth at gcc dot gnu.org
@ 2011-03-01 9:47 ` rguenth at gcc dot gnu.org
2011-03-02 0:45 ` jamborm at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-03-01 9:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47924
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-01 09:46:57 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug lto/47924] [4.6 Regression] Missed optimization with LTO
2011-02-28 14:47 [Bug lto/47924] New: [4.6 Regression] Missed optimization with LTO d.g.gorbachev at gmail dot com
` (5 preceding siblings ...)
2011-03-01 9:47 ` rguenth at gcc dot gnu.org
@ 2011-03-02 0:45 ` jamborm at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jamborm at gcc dot gnu.org @ 2011-03-02 0:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47924
Martin Jambor <jamborm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jamborm at gcc dot gnu.org
--- Comment #7 from Martin Jambor <jamborm at gcc dot gnu.org> 2011-03-02 00:45:15 UTC ---
*** Bug 47943 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2011-03-02 0:45 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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2011-02-28 14:47 [Bug lto/47924] New: [4.6 Regression] Missed optimization with LTO d.g.gorbachev at gmail dot com
2011-02-28 14:51 ` [Bug lto/47924] " d.g.gorbachev at gmail dot com
2011-02-28 15:19 ` d.g.gorbachev at gmail dot com
2011-02-28 15:20 ` rguenth at gcc dot gnu.org
2011-02-28 16:16 ` rguenth at gcc dot gnu.org
2011-03-01 9:46 ` rguenth at gcc dot gnu.org
2011-03-01 9:47 ` rguenth at gcc dot gnu.org
2011-03-02 0:45 ` jamborm at gcc dot gnu.org
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