From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id EF0ED385AC2F; Wed, 19 Oct 2022 06:21:01 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EF0ED385AC2F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1666160461; bh=vyj1Zqo39gRASiXZ/IjAszvexkWZywu2RfKqBJVWBAo=; h=From:To:Subject:Date:In-Reply-To:References:From; b=l+YhIfQsAwIQX7aImqn1qoylq4h5AnAAoiJ40ZUQtSm9J0WFN+qiZBEkfviJKKkqR IsBADsalOMSW7p/dwr9gfeLXg4noEEB6pFSdYiU5IC1KoM9vuvwdSYk8l4bLmJUkW6 oGcAdz1pAA+Xkcuv5Xh7zTlRBhRHzZ41x/5CD06o= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/85964] [10/11 Regression] compile time hog w/ -O3 -ftracer -fno-guess-branch-probability Date: Wed, 19 Oct 2022 06:21:01 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 8.1.0 X-Bugzilla-Keywords: compile-time-hog X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 10.5 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cf_known_to_work bug_status short_desc assigned_to Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D85964 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |12.1.0, 13.0 Status|ASSIGNED |NEW Summary|[10/11/12/13 Regression] |[10/11 Regression] compile |compile time hog w/ -O3 |time hog w/ -O3 -ftracer |-ftracer |-fno-guess-branch-probabili |-fno-guess-branch-probabili |ty |ty | Assignee|law at gcc dot gnu.org |unassigned at gcc d= ot gnu.org --- Comment #24 from Richard Biener --- GCC 8.4 and 9.5 take around 4s for me, GCC 10 and 11 about 10s, GCC 12 and trunk are instant (0.2s). GCC 12+ has the backwards threader rewritten, th= at's nothing to backport. But at least fixed in 12+ sofar. Nothing to do here anymore (not for Jeff either ;))=