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* [Bug lto/48259] New: Internal compiler errors in lto1
@ 2011-03-23 19:52 d.g.gorbachev at gmail dot com
2011-03-23 19:52 ` [Bug lto/48259] " d.g.gorbachev at gmail dot com
` (10 more replies)
0 siblings, 11 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-03-23 19:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
Summary: Internal compiler errors in lto1
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
I just experimented a bit with static libstdc++ compiled with -flto. GCC fails
with internal compiler errors when using it. (Linking with static libgcc
compiled with -flto also reveals a bug in the linker.)
Does it make sense to report such bugs? Or maybe these libraries are too
'special' and can't be expected to work this way?
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
@ 2011-03-23 19:52 ` d.g.gorbachev at gmail dot com
2011-03-24 12:41 ` rguenth at gcc dot gnu.org
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-03-23 19:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
--- Comment #1 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-03-23 19:45:13 UTC ---
Created attachment 23761
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23761
testcase, based on libstdc++
GCC 4.6.0 and 4.7.0 with -flto -O2:
lto1: internal compiler error: in ipcp_iterate_stage, at ipa-cp.c:891
4.6.0 with -flto:
lto1: internal compiler error: in cgraph_mark_functions_to_output, at
cgraphunit.c:11
4.7.0 with -flto:
[...]
lto1: internal compiler error: failed to reclaim unneeded function
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
2011-03-23 19:52 ` [Bug lto/48259] " d.g.gorbachev at gmail dot com
@ 2011-03-24 12:41 ` rguenth at gcc dot gnu.org
2011-03-26 8:29 ` d.g.gorbachev at gmail dot com
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-03-24 12:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2011.03.24 12:24:22
Ever Confirmed|0 |1
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-24 12:24:22 UTC ---
At least LTOing libstdc++ should work, I'm not sure about libgcc, but if
no functions of libgcc end up being used it shouldn't break.
Hm, I can't reproduce it with 4.6.
rguenther@murzim:/tmp> g++-4.6 -flto -O2 1.C 2.C 3.s
rguenther@murzim:/tmp> g++-4.6 -flto -O2 1.C 2.C 3.s -fno-use-linker-plugin
rguenther@murzim:/tmp> g++-4.6 -flto -O2 1.C 2.C 3.s -fuse-linker-plugin
rguenther@murzim:/tmp> g++-4.6 -flto -O2 1.C 2.C 3.s -flto-partition=none
rguenther@murzim:/tmp>
nor with trunk. Can you be more specific about what linker you use? Maybe
show -v output of a failing compile?
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
2011-03-23 19:52 ` [Bug lto/48259] " d.g.gorbachev at gmail dot com
2011-03-24 12:41 ` rguenth at gcc dot gnu.org
@ 2011-03-26 8:29 ` d.g.gorbachev at gmail dot com
2011-03-26 9:19 ` d.g.gorbachev at gmail dot com
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-03-26 8:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
--- Comment #3 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-03-26 08:24:27 UTC ---
Created attachment 23775
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23775
Backtrace #1
Reproduced with i686-pc-linux-gnu-gcc-4.6.1 (GCC) 4.6.1 20110325 (prerelease)
> Can you be more specific about what linker you use?
GNU ld (GNU Binutils) 2.21.51.20110322
GNU gold (GNU Binutils 2.21.51.20110322) 1.11
> g++-4.6 -flto -O2 1.C 2.C 3.s -fno-use-linker-plugin
It works.
> g++-4.6 -flto -O2 1.C 2.C 3.s -flto-partition=none
It does not work. Works with `-flto 1.C 2.C 3.s -flto-partition=1to1'.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
` (2 preceding siblings ...)
2011-03-26 8:29 ` d.g.gorbachev at gmail dot com
@ 2011-03-26 9:19 ` d.g.gorbachev at gmail dot com
2011-03-26 9:20 ` d.g.gorbachev at gmail dot com
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-03-26 9:19 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
--- Comment #4 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-03-26 08:25:10 UTC ---
Created attachment 23776
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23776
Backtrace #2
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
` (3 preceding siblings ...)
2011-03-26 9:19 ` d.g.gorbachev at gmail dot com
@ 2011-03-26 9:20 ` d.g.gorbachev at gmail dot com
2011-03-26 9:21 ` d.g.gorbachev at gmail dot com
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-03-26 9:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
--- Comment #5 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-03-26 08:28:41 UTC ---
Created attachment 23777
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23777
Output of gcc -v -O2 -flto
> Maybe show -v output of a failing compile?
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
` (4 preceding siblings ...)
2011-03-26 9:20 ` d.g.gorbachev at gmail dot com
@ 2011-03-26 9:21 ` d.g.gorbachev at gmail dot com
2011-03-27 18:28 ` d.g.gorbachev at gmail dot com
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-03-26 9:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
--- Comment #6 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-03-26 08:29:23 UTC ---
Created attachment 23778
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23778
Output of gcc -v -flto
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
` (5 preceding siblings ...)
2011-03-26 9:21 ` d.g.gorbachev at gmail dot com
@ 2011-03-27 18:28 ` d.g.gorbachev at gmail dot com
2011-08-06 23:57 ` d.g.gorbachev at gmail dot com
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-03-27 18:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
--- Comment #7 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-03-27 17:33:51 UTC ---
Created attachment 23782
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23782
Backtrace from GCC 4.7
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
` (6 preceding siblings ...)
2011-03-27 18:28 ` d.g.gorbachev at gmail dot com
@ 2011-08-06 23:57 ` d.g.gorbachev at gmail dot com
2011-08-21 20:34 ` d.g.gorbachev at gmail dot com
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-08-06 23:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
Dmitry Gorbachev <d.g.gorbachev at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.7.0
Known to fail|4.7.0 |
--- Comment #8 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-08-06 23:56:45 UTC ---
I can't reproduce it in 4.7.0.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
` (7 preceding siblings ...)
2011-08-06 23:57 ` d.g.gorbachev at gmail dot com
@ 2011-08-21 20:34 ` d.g.gorbachev at gmail dot com
2011-12-12 21:43 ` d.g.gorbachev at gmail dot com
2013-04-12 20:45 ` d.g.gorbachev at gmail dot com
10 siblings, 0 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-08-21 20:34 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
Dmitry Gorbachev <d.g.gorbachev at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #23782|0 |1
is obsolete| |
--- Comment #9 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-08-21 20:32:06 UTC ---
Created attachment 25067
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25067
Another testcase (extracted from libstdc++)
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
` (8 preceding siblings ...)
2011-08-21 20:34 ` d.g.gorbachev at gmail dot com
@ 2011-12-12 21:43 ` d.g.gorbachev at gmail dot com
2013-04-12 20:45 ` d.g.gorbachev at gmail dot com
10 siblings, 0 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-12-12 21:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
--- Comment #10 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-12-12 21:43:15 UTC ---
Recent GCC 4.7.0 works with both testcases. GCC 4.6.3 still fails on the 1st.
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug lto/48259] Internal compiler errors in lto1
2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
` (9 preceding siblings ...)
2011-12-12 21:43 ` d.g.gorbachev at gmail dot com
@ 2013-04-12 20:45 ` d.g.gorbachev at gmail dot com
10 siblings, 0 replies; 12+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2013-04-12 20:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48259
Dmitry Gorbachev <d.g.gorbachev at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
--- Comment #11 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2013-04-12 20:45:54 UTC ---
Does not fail with 4.7.3 and 4.8.1. The 4.6.4 branch has been closed.
^ permalink raw reply [flat|nested] 12+ messages in thread
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2011-03-23 19:52 [Bug lto/48259] New: Internal compiler errors in lto1 d.g.gorbachev at gmail dot com
2011-03-23 19:52 ` [Bug lto/48259] " d.g.gorbachev at gmail dot com
2011-03-24 12:41 ` rguenth at gcc dot gnu.org
2011-03-26 8:29 ` d.g.gorbachev at gmail dot com
2011-03-26 9:19 ` d.g.gorbachev at gmail dot com
2011-03-26 9:20 ` d.g.gorbachev at gmail dot com
2011-03-26 9:21 ` d.g.gorbachev at gmail dot com
2011-03-27 18:28 ` d.g.gorbachev at gmail dot com
2011-08-06 23:57 ` d.g.gorbachev at gmail dot com
2011-08-21 20:34 ` d.g.gorbachev at gmail dot com
2011-12-12 21:43 ` d.g.gorbachev at gmail dot com
2013-04-12 20:45 ` d.g.gorbachev at gmail dot com
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