From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 20C5D3857000; Wed, 11 Nov 2020 01:21:50 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 20C5D3857000 From: "wilson at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug other/97417] RISC-V Unnecessary andi instruction when loading volatile bool Date: Wed, 11 Nov 2020 01:21:50 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: other X-Bugzilla-Version: 10.2.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: wilson 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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Nov 2020 01:21:50 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97417 --- Comment #30 from Jim Wilson --- Looking at your v2 patch, the first verison fails because you are passing mismatched modes to emit_move_insn. The version with gen_lowpart solves th= at problem, but fails because of infinite recursion. The v4 patch looks good. There are some coding style issues, but I can alw= ays fix them for you. There should be a space before open paren. The first && should line up with the last two. The braces should be indented two more spaces. The comment needs to end with a period and two spaces. In the comment, instead of "Separate ... to ..." I'd say "Expand ... to ...= " or maybe "Emit ... as ...". Now we need the copyright assignment paperwork.=