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* [Bug middle-end/43853] New: [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o
@ 2010-04-22 17:25 hjl dot tools at gmail dot com
2010-04-23 12:37 ` [Bug middle-end/43853] " rguenth at gcc dot gnu dot org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: hjl dot tools at gmail dot com @ 2010-04-22 17:25 UTC (permalink / raw)
To: gcc-bugs
On Linux/x86, revision 158610 gave
FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o link,
(internal compiler error)
Revision 158595 is OK.
--
Summary: [4.6 Regression] FAIL: gcc.dg/lto/20090126-1
c_lto_20090126-1_0.o-c_lto_20090126-1_0.o
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hjl dot tools at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43853
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/43853] [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o
2010-04-22 17:25 [Bug middle-end/43853] New: [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o hjl dot tools at gmail dot com
@ 2010-04-23 12:37 ` rguenth at gcc dot gnu dot org
2010-04-29 21:16 ` hp at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-04-23 12:37 UTC (permalink / raw)
To: gcc-bugs
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu dot
| |org
Target Milestone|--- |4.6.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43853
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/43853] [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o
2010-04-22 17:25 [Bug middle-end/43853] New: [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o hjl dot tools at gmail dot com
2010-04-23 12:37 ` [Bug middle-end/43853] " rguenth at gcc dot gnu dot org
@ 2010-04-29 21:16 ` hp at gcc dot gnu dot org
2010-04-30 8:46 ` hubicka at ucw dot cz
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: hp at gcc dot gnu dot org @ 2010-04-29 21:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from hp at gcc dot gnu dot org 2010-04-29 21:16 -------
I'm unsure whether I should tag along on this PR, because the failing range
(last_worked:first_failed) for cris-elf is 158755:158765, which doesn't include
158610. But, I'm doing it anyhow. From gcc-restresults@ it looks like it's
highly host-dependent, but occurring for many targets. My host system is
running Fedora 12, updated about a month ago, gcc-4.4.3-4.fc12.x86_64,
binutils-2.19.51.0.14-37.fc12.x86_64, glibc-2.11.1-1.x86_64. The internal
error message in my gcc.log from r158788 is just (besides the usual ICE
message):
lto1: internal compiler error: Segmentation fault
--
hp at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hp at gcc dot gnu dot org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-04-29 21:16:11
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43853
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/43853] [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o
2010-04-22 17:25 [Bug middle-end/43853] New: [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o hjl dot tools at gmail dot com
2010-04-23 12:37 ` [Bug middle-end/43853] " rguenth at gcc dot gnu dot org
2010-04-29 21:16 ` hp at gcc dot gnu dot org
@ 2010-04-30 8:46 ` hubicka at ucw dot cz
2010-05-12 15:48 ` ro at gcc dot gnu dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: hubicka at ucw dot cz @ 2010-04-30 8:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from hubicka at ucw dot cz 2010-04-30 08:45 -------
Subject: Re: [4.6 Regression] FAIL:
gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o
Hi,
the problem here is that the testcase combine -O0 module into -O3 module. This
results in optimization summaries to be missing and thus ipa-pure-const reads
in nothing and later ICE on uninitialized datastructure. I sent patch for this
that I need to modify, just did not get into it. WHOPR needs significant
reorganization (well pretty much rewrite of all WHOPR specific bits) to be
correct and it is difficult to do so without some fallout
- fixing one problem enabling a transform usually uncovers new one. The
testcase should ICE on release branch alsi when -fwhopr is replaced by -flto
so it is a bug in LTO implementation overall. Trying to optimize -O0 compiled
modules is in general not very sane anyway.
But it should be attributed to the change enabling ipa-pure-const at -fwhopr.
I will handle this over weekend.
Honza
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43853
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/43853] [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o
2010-04-22 17:25 [Bug middle-end/43853] New: [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o hjl dot tools at gmail dot com
` (2 preceding siblings ...)
2010-04-30 8:46 ` hubicka at ucw dot cz
@ 2010-05-12 15:48 ` ro at gcc dot gnu dot org
2010-05-23 13:51 ` howarth at nitro dot med dot uc dot edu
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: ro at gcc dot gnu dot org @ 2010-05-12 15:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from ro at gcc dot gnu dot org 2010-05-12 15:48 -------
Also happens on i386-pc-solaris2.1[01] and sparc-sun-solaris2.1[01].
--
ro at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ro at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43853
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/43853] [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o
2010-04-22 17:25 [Bug middle-end/43853] New: [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o hjl dot tools at gmail dot com
` (3 preceding siblings ...)
2010-05-12 15:48 ` ro at gcc dot gnu dot org
@ 2010-05-23 13:51 ` howarth at nitro dot med dot uc dot edu
2010-06-01 12:10 ` rguenth at gcc dot gnu dot org
2010-06-01 12:19 ` rguenth at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: howarth at nitro dot med dot uc dot edu @ 2010-05-23 13:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from howarth at nitro dot med dot uc dot edu 2010-05-23 13:50 -------
*** Bug 44250 has been marked as a duplicate of this bug. ***
--
howarth at nitro dot med dot uc dot edu changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |howarth at nitro dot med dot
| |uc dot edu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43853
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/43853] [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o
2010-04-22 17:25 [Bug middle-end/43853] New: [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o hjl dot tools at gmail dot com
` (4 preceding siblings ...)
2010-05-23 13:51 ` howarth at nitro dot med dot uc dot edu
@ 2010-06-01 12:10 ` rguenth at gcc dot gnu dot org
2010-06-01 12:19 ` rguenth at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-01 12:10 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from rguenth at gcc dot gnu dot org 2010-06-01 12:09 -------
Subject: Bug 43853
Author: rguenth
Date: Tue Jun 1 12:09:16 2010
New Revision: 160099
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=160099
Log:
2010-06-01 Richard Guenther <rguenther@suse.de>
PR lto/43853
* ipa-pure-const.c (get_function_state): Hand back varying state
if we do not have one.
(has_function_state): New function.
(duplicate_node_data): Adjust.
(remove_node_data): Likewise.
(pure_const_write_summary): Likewise.
(propagate): Likewise. Fix typo.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ipa-pure-const.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43853
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/43853] [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o
2010-04-22 17:25 [Bug middle-end/43853] New: [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o hjl dot tools at gmail dot com
` (5 preceding siblings ...)
2010-06-01 12:10 ` rguenth at gcc dot gnu dot org
@ 2010-06-01 12:19 ` rguenth at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-01 12:19 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from rguenth at gcc dot gnu dot org 2010-06-01 12:18 -------
Fixed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43853
^ permalink raw reply [flat|nested] 8+ messages in thread
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2010-04-22 17:25 [Bug middle-end/43853] New: [4.6 Regression] FAIL: gcc.dg/lto/20090126-1 c_lto_20090126-1_0.o-c_lto_20090126-1_0.o hjl dot tools at gmail dot com
2010-04-23 12:37 ` [Bug middle-end/43853] " rguenth at gcc dot gnu dot org
2010-04-29 21:16 ` hp at gcc dot gnu dot org
2010-04-30 8:46 ` hubicka at ucw dot cz
2010-05-12 15:48 ` ro at gcc dot gnu dot org
2010-05-23 13:51 ` howarth at nitro dot med dot uc dot edu
2010-06-01 12:10 ` rguenth at gcc dot gnu dot org
2010-06-01 12:19 ` rguenth at gcc dot gnu dot org
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