From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 33FD13858C74; Thu, 12 Jan 2023 11:42:05 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 33FD13858C74 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1673523725; bh=LGtGkO1FQr9DWGWiCsjy2SfO31YxMfLC7jKncVldzNA=; h=From:To:Subject:Date:In-Reply-To:References:From; b=PYBy7xY8zqm2OrGc6offtyRRV2CbeSuHg4VxHdwslRxfOfcStZnvBeRQTreOyV832 e50/K5KWUKZoxWbwFq9jipUK8anPnQkAA9VQN5B7xCSo86X6mLnsCR/axRXqkohPOQ 62u8qnJOxSGoFDQ1MN6y+PCBA0cPJJUbDZ4a8FMk= From: "aldyh at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/107608] [13 Regression] Failure on fold-overflow-1.c and pr95115.c Date: Thu, 12 Jan 2023 11:42:02 +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: 13.0 X-Bugzilla-Keywords: missed-optimization, wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: aldyh at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 13.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: attachments.isobsolete attachments.created 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=3D107608 Aldy Hernandez changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #54224|0 |1 is obsolete| | --- Comment #26 from Aldy Hernandez --- Created attachment 54253 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D54253&action=3Dedit proposed patch So where are we on this? Do we want to do something like this for this release, or something else entirely? This is a variation of the previous patch that instead of setting varying, avoids the singleton by returning: [INF, INF] =3D> [+MAX, +INF] [-INF, -INF] =3D> [-INF, -MIN]=