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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/94314] [10 Regression] Optimizing mismatched new/delete pairs since r10-2106-g6343b6bf3bb83c87 Date: Wed, 25 Mar 2020 11:24:45 +0000 [thread overview] Message-ID: <bug-94314-4-GmiUQGsG4y@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-94314-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94314 --- Comment #5 from Marc Glisse <glisse at gcc dot gnu.org> --- I don't think we need heavy machinery linking new and delete (and if we did I'd be tempted to store it in some global table rather than in the nodes). The most important case is the global replacable functions, for which we have a finite list, and for those a few checks like not matching array with non-array versions should do. For user overloads with attribute malloc (a gcc extension), I would go with heuristics like both/neither being class members, being members of the same class, etc. Although I am not quite sure how doable that is from the middle-end, how much of that information is still available (I think it is available in the mangled name, but demangling doesn't seem like a great idea).
next prev parent reply other threads:[~2020-03-25 11:24 UTC|newest] Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-03-24 21:59 [Bug c++/94314] New: [10 Regression] Optimizing mismatched new/delete pairs glisse at gcc dot gnu.org 2020-03-24 22:29 ` [Bug c++/94314] " jason at gcc dot gnu.org 2020-03-25 7:55 ` rguenth at gcc dot gnu.org 2020-03-25 10:08 ` [Bug c++/94314] [10 Regression] Optimizing mismatched new/delete pairs since r10-2106-g6343b6bf3bb83c87 marxin at gcc dot gnu.org 2020-03-25 10:44 ` rguenth at gcc dot gnu.org 2020-03-25 11:24 ` glisse at gcc dot gnu.org [this message] 2020-03-27 21:43 ` jason at gcc dot gnu.org 2020-03-30 7:57 ` marxin at gcc dot gnu.org 2020-04-01 7:48 ` rguenth at gcc dot gnu.org 2020-04-08 15:17 ` cvs-commit at gcc dot gnu.org 2020-04-08 15:18 ` marxin at gcc dot gnu.org 2020-04-08 16:02 ` glisse at gcc dot gnu.org 2020-04-08 18:04 ` cvs-commit at gcc dot gnu.org 2020-04-09 13:55 ` marxin at gcc dot gnu.org 2020-04-16 13:40 ` cvs-commit at gcc dot gnu.org 2020-04-16 13:41 ` marxin at gcc dot gnu.org 2020-04-17 7:02 ` cvs-commit at gcc dot gnu.org
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