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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/108370] gcc doesn't merge bitwise-AND if an explicit comparison against 0 is given Date: Sun, 17 Sep 2023 00:35:53 +0000 [thread overview] Message-ID: <bug-108370-4-mKl91rrpCf@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-108370-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108370 --- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Created attachment 55914 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55914&action=edit Patch Combined with the patch for PR 109960. We are able to optimize this correctly: _5 = bio_4(D)->bi_flags; _8 = _5 & 3; if (_8 != 0) goto <bb 3>; [66.50%] else goto <bb 4>; [33.50%] <bb 3> [local count: 714038312]: _1 = (int) mark_dirty_6(D); __bio_release_pages (bio_4(D), _1); [tail call]
prev parent reply other threads:[~2023-09-17 0:36 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-01-11 13:47 [Bug c/108370] New: " dhowells at redhat dot com 2023-01-11 14:04 ` [Bug c/108370] " rguenth at gcc dot gnu.org 2023-01-11 14:24 ` rguenth at gcc dot gnu.org 2023-01-11 14:42 ` dhowells at redhat dot com 2023-02-08 20:30 ` [Bug middle-end/108370] " pinskia at gcc dot gnu.org 2023-09-16 22:58 ` pinskia at gcc dot gnu.org 2023-09-16 23:16 ` pinskia at gcc dot gnu.org 2023-09-16 23:48 ` pinskia at gcc dot gnu.org 2023-09-17 0:35 ` pinskia at gcc dot gnu.org [this message]
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