From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 152F63858420; Sat, 30 Oct 2021 20:15:06 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 152F63858420 From: "fx at gnu dot org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/103008] poor inlined builtin_fmod on x86_64 Date: Sat, 30 Oct 2021 20:15:06 +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: 11.2.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: fx at gnu dot org X-Bugzilla-Status: UNCONFIRMED 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: Sat, 30 Oct 2021 20:15:06 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103008 --- Comment #4 from Dave Love --- On further consideration, perhaps this is just a Fortran issue. I thought -ffast-math should turn off all the relevant checks to allow reducing mod to the arithmetic expression, but it probably doesn't. Also, MAQAO complained about x87 instructions being generated, but I'm not sure about that either = if it's just for status. Apologies if this is invalid, and correction welcome= .=