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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug lto/61886] [4.8/4.9/5 Regression] LTO breaks fread with _FORTIFY_SOURCE=2 Date: Wed, 08 Oct 2014 08:25:00 -0000 [thread overview] Message-ID: <bug-61886-4-gG8RygPENj@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-61886-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61886 --- Comment #24 from Jakub Jelinek <jakub at gcc dot gnu.org> --- But is warning/error attribute the only thing on aliases that can hold extra semantics info (now or in the future)? I'd say LTO symtab merging should merge what is mergeable, and should leave leave as separate decls with the same asm-name what holds non-mergeable semantics on it. Say, if you declare some function (or different, just with same asm name) with warning attribute in one TU, with error attribute in another TU and without it on another TU, IMHO those three decls shouldn't be merged together, you should note in cgraph that you have aliases that have the same asm name but different semantics and just ensure that you use the right cgraph nodes and decls in the corresponding callers.
next prev parent reply other threads:[~2014-10-08 8:25 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <bug-61886-4@http.gcc.gnu.org/bugzilla/> 2014-07-23 10:58 ` [Bug lto/61886] [4.8/4.9/4.10 " rguenth at gcc dot gnu.org 2014-07-23 11:13 ` rguenth at gcc dot gnu.org 2014-07-23 13:08 ` rguenth at gcc dot gnu.org 2014-07-23 13:37 ` hubicka at gcc dot gnu.org 2014-08-27 10:00 ` [Bug lto/61886] [4.8/4.9/5 " rguenth at gcc dot gnu.org 2014-08-27 14:51 ` hubicka at ucw dot cz 2014-08-28 8:20 ` rguenther at suse dot de 2014-09-08 0:42 ` hubicka at ucw dot cz 2014-09-08 7:53 ` rguenther at suse dot de 2014-10-06 20:23 ` hubicka at ucw dot cz 2014-10-06 20:34 ` jakub at redhat dot com 2014-10-06 22:08 ` jakub at redhat dot com 2014-10-06 22:19 ` hubicka at ucw dot cz 2014-10-06 22:38 ` jakub at redhat dot com 2014-10-06 22:44 ` hubicka at ucw dot cz 2014-10-07 5:46 ` hubicka at ucw dot cz 2014-10-07 9:24 ` jakub at gcc dot gnu.org 2014-10-07 9:35 ` jakub at gcc dot gnu.org 2014-10-07 19:49 ` hubicka at ucw dot cz 2014-10-08 7:37 ` rguenther at suse dot de 2014-10-08 8:25 ` jakub at gcc dot gnu.org [this message] 2014-10-08 10:42 ` rguenther at suse dot de 2014-10-08 17:49 ` hubicka at ucw dot cz 2014-12-01 12:31 ` rguenth at gcc dot gnu.org 2014-12-19 13:37 ` jakub at gcc dot gnu.org 2015-01-19 13:16 ` rguenth at gcc dot gnu.org 2015-02-11 8:29 ` rguenth at gcc dot gnu.org 2015-02-11 8:33 ` rguenth at gcc dot gnu.org 2015-02-11 9:15 ` hubicka at ucw dot cz 2015-02-11 10:05 ` rguenther at suse dot de 2015-02-11 16:30 ` zackw at panix dot com 2015-03-03 19:12 ` hubicka at gcc dot gnu.org 2015-03-20 21:00 ` hubicka at gcc dot gnu.org 2015-06-23 8:21 ` [Bug lto/61886] [4.8/4.9/5/6 " rguenth at gcc dot gnu.org 2015-06-26 20:10 ` [Bug lto/61886] [4.9/5/6 " jakub at gcc dot gnu.org 2015-06-26 20:35 ` jakub at gcc dot gnu.org
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