From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 3F8CA3858C50; Thu, 9 Feb 2023 12:48:40 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3F8CA3858C50 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1675946920; bh=WB4V40ft2tlgbHLk8CDSneXP8z6BuBnMxokH+iCO7Lw=; h=From:To:Subject:Date:In-Reply-To:References:From; b=t/nJNpVU4PWu+bYKMTKZHWncp6x9LUIFmsuYKvuWkE4Xwh4EN/RYWM6WWJ9YnqI33 LAzL9o0in2yfVdEWc8fhrG8SXO/dqYU5meYcwPJmcYmHELB9wGRY6K0BTPbVBXBgB9 lJyU4nYvKdGC2myaTSDyMZEwYjwQXybdasmXyEJQ= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/108738] compile-time and memory-hog in mdreorg Date: Thu, 09 Feb 2023 12:48:39 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: 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=3D108738 --- Comment #4 from Richard Biener --- The odd thing is that DF_REF_CHAIN of a USE ref contains _all_ definitions = of the pseudo while DF_REF_CHAIN of a DEF ref contains only reaching uses!? Probably an artifact of how df_chain_create_bb_process_use operates. That makes this much harder to fix ...=