From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id D381A3858D38; Wed, 27 Dec 2023 14:02:58 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D381A3858D38 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1703685778; bh=XFNzBXp4TCfe5bycNJhRA7sKjaGdnS6+WtWrtXAg/w8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=NHACzMAdYdcCY0wd5X6Z5TjAUlhq1Eci7U203ASKGbnGVOsJLAGSay8EnczYOGnDF qfbFCiwOXg8ZBE4ZTCnIfNEy0pzL8AX9+AaRiNcf1/nlA+fKOi173TZHLYMNcavRly 79VIKNGpKQlquUX8NjOQKqJ2TdryHgtj14nZoHx0= From: "syq at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/104914] [MIPS] wrong comparison with scrabbled int value Date: Wed, 27 Dec 2023 14:02:52 +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: 12.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: syq 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: --- 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=3D104914 --- Comment #23 from YunQiang Su --- I guess, we should drop TRULY_NOOP_TRUNCATION_MODES_P and TARGET_MODE_REP_EXTENDED for MIPS. In fact, it will only effect MIPS64 SI->= DI. Then it may reduce the maintain workload for MIPS64. Let's have a try and run some benchmark.=