From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id EC6293858D39; Wed, 29 Mar 2023 07:36:10 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EC6293858D39 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1680075370; bh=pxDp7yCSDWzDz3xAyDTEbSziq3IOEuFSlIejSfcdvWA=; h=From:To:Subject:Date:In-Reply-To:References:From; b=VsEZTVCYI0xBXIfu4wNAqNhh5Und7wNFioMnmf+Dmd5Z97/yOaGXBirjFdo7MH98A tmbE4OE4Z3XgioF1j7G0wz4GU2Q1fu4viTbhoS+hIe+scsU9Z13zSobNjIZjR008Sm Y+eY5uOfe8fjR7+a6KiY3v8/GnFMZrKoSyx8NQ5M= From: "xry111 at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/108357] [13 Regression] Dead Code Elimination Regression at -O2 since r13-4607-g2dc5d6b1e7ec88 Date: Wed, 29 Mar 2023 07:36:10 +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 X-Bugzilla-Severity: normal X-Bugzilla-Who: xry111 at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: FIXED X-Bugzilla-Priority: P3 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=3D108357 --- Comment #7 from Xi Ruoyao --- (In reply to Richard Biener from comment #6) > (In reply to Xi Ruoyao from comment #5) > > The test fails on loongarch64-linux-gnu. foo is kept in 114t.threadful= l1, > > but removed in 135t.forwprop3. > >=20 > > Does this mean something is wrong for LoongArch, or we should simply ch= eck > > the tree dump in a later pass (for e.g. 254t.optimized)? >=20 > I guess it depends on LOGICAL_OP_NON_SHORT_CIRCUIT, can you try > --param logical-op-non-short-circuit=3D1 and see if that helps? Nope, the result is same.=