From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id A940C3858C2F; Tue, 18 Oct 2022 19:54:57 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A940C3858C2F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1666122897; bh=wYAfdc1iBWMidtHz51QHx64y71u5XJUaxzl4AXpcJlg=; h=From:To:Subject:Date:In-Reply-To:References:From; b=jghQhp6eITmaBhFq3BgWm0Ve5LaQoTPKxmxtWzEyzi8PzlxGGCmtL4nGYur6UbyGr dThEl/Cq3Mwshfc6uj1EBP3m8o5umYWoIPsv7LISz+jrkBTMBdOvA4SuMkHAXwYeSO q8Sfj7jCp9DLarnR9WJwNCIRJl5m0ASJvRoZ1MRs= From: "hjl.tools at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/107172] [13 Regression] wrong code with "-O1 -ftree-vrp" on x86_64-linux-gnu since r13-1268-g8c99e307b20c502e Date: Tue, 18 Oct 2022 19:54:56 +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: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: hjl.tools at gmail dot com 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: 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=3D107172 --- Comment #41 from H.J. Lu --- (In reply to Segher Boessenkool from comment #40) > Let me repeat: A const_int cannot be assigned to a MODE_CC. It has no > meaning. > This is invalid RTL. If it ever works, or worked, that is an accident. Can we make it to work with a target hook? It will allow more backed optimizations.=