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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/106922] [12 Regression] Bogus uninitialized warning on boost::optional<<std::vector<std::string>>>, missed FRE Date: Wed, 21 Sep 2022 12:52:28 +0000 [thread overview] Message-ID: <bug-106922-4-7ohGegDALF@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-106922-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106922 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #53597|0 |1 is obsolete| | --- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 53599 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53599&action=edit candidate patch 2 OK, so I think I know what's going wrong eventually. The following implements the trick differently. We might eventually be able to use dominance of the virtual operands to check for the cross-iteration case as further improvement.
next prev parent reply other threads:[~2022-09-21 12:53 UTC|newest] Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-09-13 8:18 [Bug tree-optimization/106922] New: [12 Regression] Bogus uninitialized warning on boost::optional<<std::vector<std::string>>> jan.zizka at nokia dot com 2022-09-13 9:13 ` [Bug tree-optimization/106922] [12/13 " rguenth at gcc dot gnu.org 2022-09-15 7:55 ` [Bug tree-optimization/106922] [12/13 Regression] Bogus uninitialized warning on boost::optional<<std::vector<std::string>>>, missed FRE rguenth at gcc dot gnu.org 2022-09-15 8:41 ` rguenth at gcc dot gnu.org 2022-09-15 11:26 ` rguenth at gcc dot gnu.org 2022-09-15 11:56 ` rguenth at gcc dot gnu.org 2022-09-15 11:57 ` rguenth at gcc dot gnu.org 2022-09-15 12:12 ` jan.zizka at nokia dot com 2022-09-15 12:36 ` cvs-commit at gcc dot gnu.org 2022-09-15 12:38 ` [Bug tree-optimization/106922] [12 " rguenth at gcc dot gnu.org 2022-09-15 22:13 ` jan.zizka at nokia dot com 2022-09-19 14:16 ` rguenth at gcc dot gnu.org 2022-09-19 15:03 ` jan.zizka at nokia dot com 2022-09-21 6:55 ` rguenth at gcc dot gnu.org 2022-09-21 12:52 ` rguenth at gcc dot gnu.org [this message] 2022-09-22 11:10 ` cvs-commit at gcc dot gnu.org 2022-09-22 11:11 ` rguenth at gcc dot gnu.org 2022-09-23 7:48 ` cvs-commit at gcc dot gnu.org 2022-09-23 11:31 ` jan.zizka at nokia dot com 2022-09-23 11:59 ` rguenth at gcc dot gnu.org 2022-09-23 13:11 ` cvs-commit at gcc dot gnu.org 2022-09-23 13:14 ` rguenth at gcc dot gnu.org 2022-09-23 14:22 ` jan.zizka at nokia dot com 2022-10-11 12:06 ` cvs-commit at gcc dot gnu.org 2022-10-11 12:08 ` rguenth at gcc dot gnu.org 2022-10-11 13:13 ` jan.zizka at nokia dot com 2022-10-13 7:44 ` rguenther at suse dot de 2022-10-13 10:50 ` jan.zizka at nokia dot com 2022-10-17 13:10 ` cvs-commit at gcc dot gnu.org 2022-10-17 13:10 ` cvs-commit at gcc dot gnu.org 2022-10-17 13:10 ` cvs-commit at gcc dot gnu.org 2022-10-17 13:14 ` rguenth at gcc dot gnu.org
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