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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) -- links below jump to the message on this page -- 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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