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* [Bug pending/39657] New: [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time on x86 with -O2
@ 2009-04-06 0:48 vapier at gentoo dot org
2009-04-06 0:50 ` [Bug pending/39657] " vapier at gentoo dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: vapier at gentoo dot org @ 2009-04-06 0:48 UTC (permalink / raw)
To: gcc-bugs
gcc 4.1, 4.2, and 4.4 all take less than 30 seconds to compile this file. but
gcc-4.3 can easily take more like 5 minutes.
the file comes from the preprocessed output of a file in the ruby package.
--
Summary: [4.3 Regression] compiling ruby (yacc) output takes
inordinate amount of time on x86 with -O2
Product: gcc
Version: 4.3.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: pending
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: vapier at gentoo dot org
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39657
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug pending/39657] [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time on x86 with -O2 2009-04-06 0:48 [Bug pending/39657] New: [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time on x86 with -O2 vapier at gentoo dot org @ 2009-04-06 0:50 ` vapier at gentoo dot org 2009-04-06 9:39 ` [Bug tree-optimization/39657] " rguenth at gcc dot gnu dot org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: vapier at gentoo dot org @ 2009-04-06 0:50 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from vapier at gentoo dot org 2009-04-06 00:50 ------- Created an attachment (id=17592) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17592&action=view) parse_.i $ time gcc -c -O2 parse_.i real 5m16.777s user 5m14.586s sys 0m1.545s -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39657 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/39657] [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time on x86 with -O2 2009-04-06 0:48 [Bug pending/39657] New: [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time on x86 with -O2 vapier at gentoo dot org 2009-04-06 0:50 ` [Bug pending/39657] " vapier at gentoo dot org @ 2009-04-06 9:39 ` rguenth at gcc dot gnu dot org 2009-04-22 13:31 ` [Bug tree-optimization/39657] [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time with PRE and large SCCs rguenth at gcc dot gnu dot org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu dot org @ 2009-04-06 9:39 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from rguenth at gcc dot gnu dot org 2009-04-06 09:39 ------- tree PRE : 362.75 (97%) usr 3.30 (80%) sys 366.55 (97%) wall 7515 kB ( 8%) ggc So you can use -fno-tree-pre to work around this issue or limit the size of the SCCs processed (with the same effect) with the --param sccvn-max-scc-size -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Component|pending |tree-optimization Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2009-04-06 09:39:39 date| | Target Milestone|--- |4.3.4 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39657 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/39657] [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time with PRE and large SCCs 2009-04-06 0:48 [Bug pending/39657] New: [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time on x86 with -O2 vapier at gentoo dot org 2009-04-06 0:50 ` [Bug pending/39657] " vapier at gentoo dot org 2009-04-06 9:39 ` [Bug tree-optimization/39657] " rguenth at gcc dot gnu dot org @ 2009-04-22 13:31 ` rguenth at gcc dot gnu dot org 2009-08-04 12:48 ` rguenth at gcc dot gnu dot org 2010-04-27 11:18 ` rguenth at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu dot org @ 2009-04-22 13:31 UTC (permalink / raw) To: gcc-bugs -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P3 |P2 Summary|[4.3 Regression] compiling |[4.3 Regression] compiling |ruby (yacc) output takes |ruby (yacc) output takes |inordinate amount of time on|inordinate amount of time |x86 with -O2 |with PRE and large SCCs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39657 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/39657] [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time with PRE and large SCCs 2009-04-06 0:48 [Bug pending/39657] New: [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time on x86 with -O2 vapier at gentoo dot org ` (2 preceding siblings ...) 2009-04-22 13:31 ` [Bug tree-optimization/39657] [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time with PRE and large SCCs rguenth at gcc dot gnu dot org @ 2009-08-04 12:48 ` rguenth at gcc dot gnu dot org 2010-04-27 11:18 ` rguenth at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu dot org @ 2009-08-04 12:48 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from rguenth at gcc dot gnu dot org 2009-08-04 12:30 ------- GCC 4.3.4 is being released, adjusting target milestone. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|4.3.4 |4.3.5 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39657 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/39657] [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time with PRE and large SCCs 2009-04-06 0:48 [Bug pending/39657] New: [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time on x86 with -O2 vapier at gentoo dot org ` (3 preceding siblings ...) 2009-08-04 12:48 ` rguenth at gcc dot gnu dot org @ 2010-04-27 11:18 ` rguenth at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu dot org @ 2010-04-27 11:18 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from rguenth at gcc dot gnu dot org 2010-04-27 11:17 ------- WONTFIX on the 4.3 branch. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Known to fail|4.3.2 4.3.3 |4.3.2 4.3.3 4.3.5 Resolution| |FIXED Target Milestone|4.3.5 |4.4.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39657 ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2010-04-27 11:18 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2009-04-06 0:48 [Bug pending/39657] New: [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time on x86 with -O2 vapier at gentoo dot org 2009-04-06 0:50 ` [Bug pending/39657] " vapier at gentoo dot org 2009-04-06 9:39 ` [Bug tree-optimization/39657] " rguenth at gcc dot gnu dot org 2009-04-22 13:31 ` [Bug tree-optimization/39657] [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time with PRE and large SCCs rguenth at gcc dot gnu dot org 2009-08-04 12:48 ` rguenth at gcc dot gnu dot org 2010-04-27 11:18 ` rguenth at gcc dot gnu dot org
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