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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/114480] g++: internal compiler error: Segmentation fault signal terminated program cc1plus Date: Tue, 02 Apr 2024 13:28:10 +0000 [thread overview] Message-ID: <bug-114480-4-AgDbMvd8UR@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-114480-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114480 --- Comment #16 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 57849 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57849&action=edit patch for expand Interestingly this patch for RTL expansion, more specifically add_scope_conflicts, only slows down things even though it should improve cache locality. In particular doing the 2nd stage inbetween makes things worse. Maybe this is due to the high in-degree of some blocks in the CFG. I'll note there's no "change" in the 2nd iteration for SCCs, so optimizing to only IOR in from (changed) backedges might "work" to reduce work. Still it's odd the apparent locality improvement doesn't actually help (as said it might be skewed by a high indegree of an SCC).
next prev parent reply other threads:[~2024-04-02 13:28 UTC|newest] Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-03-26 11:40 [Bug c++/114480] New: " douglas.boffey at gmail dot com 2024-03-26 11:42 ` [Bug c++/114480] " douglas.boffey at gmail dot com 2024-03-26 11:46 ` pinskia at gcc dot gnu.org 2024-03-26 11:46 ` pinskia at gcc dot gnu.org 2024-03-26 11:51 ` douglas.boffey at gmail dot com 2024-03-26 12:05 ` pinskia at gcc dot gnu.org 2024-03-26 12:15 ` pinskia at gcc dot gnu.org 2024-03-26 12:26 ` pinskia at gcc dot gnu.org 2024-03-26 12:26 ` pinskia at gcc dot gnu.org 2024-03-26 12:31 ` douglas.boffey at gmail dot com 2024-03-26 12:41 ` redi at gcc dot gnu.org 2024-03-27 8:28 ` rguenth at gcc dot gnu.org 2024-03-27 19:49 ` vmakarov at gcc dot gnu.org 2024-03-28 8:17 ` cvs-commit at gcc dot gnu.org 2024-03-28 8:44 ` rguenth at gcc dot gnu.org 2024-03-28 10:12 ` rguenth at gcc dot gnu.org 2024-03-28 10:39 ` rguenth at gcc dot gnu.org 2024-04-02 13:28 ` rguenth at gcc dot gnu.org [this message] 2024-04-03 6:57 ` cvs-commit at gcc dot gnu.org 2024-04-03 11:47 ` rguenth at gcc dot gnu.org 2024-04-04 9:42 ` rguenth at gcc dot gnu.org 2024-04-04 18:41 ` amonakov at gcc dot gnu.org 2024-04-05 15:35 ` amonakov at gcc dot gnu.org 2024-04-08 9:46 ` rguenth at gcc dot gnu.org 2024-04-08 9:50 ` douglas.boffey at gmail dot com 2024-04-08 9:54 ` rguenther at suse dot de 2024-04-08 12:32 ` douglas.boffey at gmail dot com 2024-04-08 13:07 ` rguenther at suse dot de 2024-04-08 13:22 ` [Bug c++/114480] [12/13/14 Regression " rguenth at gcc dot gnu.org 2024-04-08 13:37 ` [Bug c++/114480] [12/13/14 Regression] " rguenth at gcc dot gnu.org 2024-04-09 7:51 ` rguenth at gcc dot gnu.org 2024-04-09 11:39 ` rguenth at gcc dot gnu.org 2024-05-14 13:41 ` [Bug c++/114480] [12/13/14/15 " rguenth at gcc dot gnu.org 2024-05-17 12:29 ` cvs-commit at gcc dot gnu.org
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