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* [Bug middle-end/38059] New: Compile time regression for gcc.dg/20020425-1.c
@ 2008-11-08 1:15 danglin at gcc dot gnu dot org
2009-03-31 16:10 ` [Bug middle-end/38059] [4.4/4.5 Regression] " jsm28 at gcc dot gnu dot org
` (6 more replies)
0 siblings, 7 replies; 11+ messages in thread
From: danglin at gcc dot gnu dot org @ 2008-11-08 1:15 UTC (permalink / raw)
To: gcc-bugs
The test now fails. It doesn't fail on previous GCC versions.
Timing the compilation, I see:
real 6m49.686s
user 6m49.490s
sys 0m0.210s
--
Summary: Compile time regression for gcc.dg/20020425-1.c
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: danglin at gcc dot gnu dot org
GCC build triplet: hppa64-hp-hpux11.11
GCC host triplet: hppa64-hp-hpux11.11
GCC target triplet: hppa64-hp-hpux11.11
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/38059] [4.4/4.5 Regression] Compile time regression for gcc.dg/20020425-1.c
2008-11-08 1:15 [Bug middle-end/38059] New: Compile time regression for gcc.dg/20020425-1.c danglin at gcc dot gnu dot org
@ 2009-03-31 16:10 ` jsm28 at gcc dot gnu dot org
2009-04-01 8:35 ` jakub at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 11+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2009-03-31 16:10 UTC (permalink / raw)
To: gcc-bugs
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|Compile time regression for |[4.4/4.5 Regression] Compile
|gcc.dg/20020425-1.c |time regression for
| |gcc.dg/20020425-1.c
Target Milestone|--- |4.4.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/38059] [4.4/4.5 Regression] Compile time regression for gcc.dg/20020425-1.c
2008-11-08 1:15 [Bug middle-end/38059] New: Compile time regression for gcc.dg/20020425-1.c danglin at gcc dot gnu dot org
2009-03-31 16:10 ` [Bug middle-end/38059] [4.4/4.5 Regression] " jsm28 at gcc dot gnu dot org
@ 2009-04-01 8:35 ` jakub at gcc dot gnu dot org
2009-04-21 15:59 ` jakub at gcc dot gnu dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-04-01 8:35 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from jakub at gcc dot gnu dot org 2009-04-01 08:35 -------
You haven't shown how long did it take in earlier versions, this test is
already known to take eons (and when gimplify.o isn't built with optimizations
even ICE on many targets) and has /* { dg-timeout-factor 4.0 } */ already.
What slows down the test is extremely deep recursion above 22000-33000 calls in
the backtrace (for each ONE either just gimplify_expr and gimplify_cond_expr,
or even gimplify_stmt in the backtrace). Even a small RA decision affecting
these functions can show up when multiplied by 11000, but the testcase is
clearly artificial and not worth optimizing for.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P5
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/38059] [4.4/4.5 Regression] Compile time regression for gcc.dg/20020425-1.c
2008-11-08 1:15 [Bug middle-end/38059] New: Compile time regression for gcc.dg/20020425-1.c danglin at gcc dot gnu dot org
2009-03-31 16:10 ` [Bug middle-end/38059] [4.4/4.5 Regression] " jsm28 at gcc dot gnu dot org
2009-04-01 8:35 ` jakub at gcc dot gnu dot org
@ 2009-04-21 15:59 ` jakub at gcc dot gnu dot org
2009-07-22 10:35 ` jakub at gcc dot gnu dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-04-21 15:59 UTC (permalink / raw)
To: gcc-bugs
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.4.0 |4.4.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/38059] [4.4/4.5 Regression] Compile time regression for gcc.dg/20020425-1.c
2008-11-08 1:15 [Bug middle-end/38059] New: Compile time regression for gcc.dg/20020425-1.c danglin at gcc dot gnu dot org
` (2 preceding siblings ...)
2009-04-21 15:59 ` jakub at gcc dot gnu dot org
@ 2009-07-22 10:35 ` jakub at gcc dot gnu dot org
2009-10-15 12:56 ` jakub at gcc dot gnu dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-07-22 10:35 UTC (permalink / raw)
To: gcc-bugs
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.4.1 |4.4.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/38059] [4.4/4.5 Regression] Compile time regression for gcc.dg/20020425-1.c
2008-11-08 1:15 [Bug middle-end/38059] New: Compile time regression for gcc.dg/20020425-1.c danglin at gcc dot gnu dot org
` (3 preceding siblings ...)
2009-07-22 10:35 ` jakub at gcc dot gnu dot org
@ 2009-10-15 12:56 ` jakub at gcc dot gnu dot org
2010-01-21 13:19 ` jakub at gcc dot gnu dot org
2010-04-30 9:01 ` [Bug middle-end/38059] [4.4/4.5/4.6 " jakub at gcc dot gnu dot org
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-10-15 12:56 UTC (permalink / raw)
To: gcc-bugs
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.4.2 |4.4.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/38059] [4.4/4.5 Regression] Compile time regression for gcc.dg/20020425-1.c
2008-11-08 1:15 [Bug middle-end/38059] New: Compile time regression for gcc.dg/20020425-1.c danglin at gcc dot gnu dot org
` (4 preceding siblings ...)
2009-10-15 12:56 ` jakub at gcc dot gnu dot org
@ 2010-01-21 13:19 ` jakub at gcc dot gnu dot org
2010-04-30 9:01 ` [Bug middle-end/38059] [4.4/4.5/4.6 " jakub at gcc dot gnu dot org
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-01-21 13:19 UTC (permalink / raw)
To: gcc-bugs
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.4.3 |4.4.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/38059] [4.4/4.5/4.6 Regression] Compile time regression for gcc.dg/20020425-1.c
2008-11-08 1:15 [Bug middle-end/38059] New: Compile time regression for gcc.dg/20020425-1.c danglin at gcc dot gnu dot org
` (5 preceding siblings ...)
2010-01-21 13:19 ` jakub at gcc dot gnu dot org
@ 2010-04-30 9:01 ` jakub at gcc dot gnu dot org
6 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-04-30 9:01 UTC (permalink / raw)
To: gcc-bugs
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.4.4 |4.4.5
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/38059] [4.4/4.5/4.6 Regression] Compile time regression for gcc.dg/20020425-1.c
[not found] <bug-38059-4@http.gcc.gnu.org/bugzilla/>
2010-10-01 12:00 ` jakub at gcc dot gnu.org
2011-03-05 0:20 ` steven at gcc dot gnu.org
@ 2011-03-05 14:14 ` rguenth at gcc dot gnu.org
2 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-03-05 14:14 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.03.05 14:13:46
Ever Confirmed|0 |1
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-05 14:13:46 UTC ---
Hm, if we have that deep recursion then aren't we prone to the original
problem the test tests for, a stack overflow in the C parser?
And it does ...
$ /obj/trunk-g/gcc/xgcc -B/obj/trunk-g/gcc/
/home/richard/src/trunk/gcc/testsuite/gcc.dg/20020425-1.c -ansi
-pedantic-errors -S -o 20020425-1.s
xgcc: internal compiler error: Segmentation fault (program cc1)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
if one doesn't raise stack limits like dejagnu does.
I think this is definitely worth fixing (removing the recursion in
gimplify_cond_expr). A regression to pre-tree-SSA.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/38059] [4.4/4.5/4.6 Regression] Compile time regression for gcc.dg/20020425-1.c
[not found] <bug-38059-4@http.gcc.gnu.org/bugzilla/>
2010-10-01 12:00 ` jakub at gcc dot gnu.org
@ 2011-03-05 0:20 ` steven at gcc dot gnu.org
2011-03-05 14:14 ` rguenth at gcc dot gnu.org
2 siblings, 0 replies; 11+ messages in thread
From: steven at gcc dot gnu.org @ 2011-03-05 0:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |steven at gcc dot gnu.org
--- Comment #2 from Steven Bosscher <steven at gcc dot gnu.org> 2011-03-05 00:20:18 UTC ---
Would anyone object to WONTFIX for this one?
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/38059] [4.4/4.5/4.6 Regression] Compile time regression for gcc.dg/20020425-1.c
[not found] <bug-38059-4@http.gcc.gnu.org/bugzilla/>
@ 2010-10-01 12:00 ` jakub at gcc dot gnu.org
2011-03-05 0:20 ` steven at gcc dot gnu.org
2011-03-05 14:14 ` rguenth at gcc dot gnu.org
2 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-10-01 12:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38059
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.4.5 |4.4.6
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2011-03-05 14:14 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2008-11-08 1:15 [Bug middle-end/38059] New: Compile time regression for gcc.dg/20020425-1.c danglin at gcc dot gnu dot org
2009-03-31 16:10 ` [Bug middle-end/38059] [4.4/4.5 Regression] " jsm28 at gcc dot gnu dot org
2009-04-01 8:35 ` jakub at gcc dot gnu dot org
2009-04-21 15:59 ` jakub at gcc dot gnu dot org
2009-07-22 10:35 ` jakub at gcc dot gnu dot org
2009-10-15 12:56 ` jakub at gcc dot gnu dot org
2010-01-21 13:19 ` jakub at gcc dot gnu dot org
2010-04-30 9:01 ` [Bug middle-end/38059] [4.4/4.5/4.6 " jakub at gcc dot gnu dot org
[not found] <bug-38059-4@http.gcc.gnu.org/bugzilla/>
2010-10-01 12:00 ` jakub at gcc dot gnu.org
2011-03-05 0:20 ` steven at gcc dot gnu.org
2011-03-05 14:14 ` rguenth at gcc dot gnu.org
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