From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 70C8C3858025; Tue, 21 Feb 2023 19:43:13 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 70C8C3858025 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1677008593; bh=hAIYmGROdR38tdXZqm4gMSWig/lBWUg8a3MwJJ/p80U=; h=From:To:Subject:Date:In-Reply-To:References:From; b=JLZF5xfIaOSU2yli6H5LSJYVlM+06OAYbVh81fmEql0h5HOTCLQcATiCwaXr3JWvT E1KzRbZggLczeuiNCglYrZ4ncFgVL345ij4TMbOcge99XNUQid8k98RjZfCvqPkYDD IzYKZw2MklVWqB7zol6Ow6LsRsAQ3WdUM2nIPPK0= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/106041] [12/13 Regression] infinite loop in fast_dce at -O1 with aarch64 Date: Tue, 21 Feb 2023 19:43:13 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 12.1.0 X-Bugzilla-Keywords: compile-time-hog, needs-bisection X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 12.3 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: see_also 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=3D106041 Andrew Pinski changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=3D108681 --- Comment #14 from Andrew Pinski --- (In reply to Richard Biener from comment #12) > The reduced testcase doesn't fail on the trunk (but I lack preprocessed > source for trunk to re-reduce it). The unreduced testcase doesn't build = on > trunk due to standard library header portability issues. >=20 > The reduced testcase is very small - two BBs, one BB with an infinite cyc= le > and no path to exit. I suspect this is a dup of bug 108681 ....=