From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 2B0753861802; Thu, 15 Feb 2024 06:38:48 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2B0753861802 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1707979128; bh=kSxXHVDM0x7Zp3EJLPs/Eh08JelGCP8PTDSbTU6pK7w=; h=From:To:Subject:Date:In-Reply-To:References:From; b=irL9Z0RuGdm9ndhz6f+M1sNZk0lSIph0NVVwmApGEG5qKN4/Pvutk3541Tl/Rkx0B HL1GLGsNDAoj35bydhg+gsAuKfmQNzJH3w7BKm34HzyFou1zNie+imwxyaiW+JpVUG HoUS1AgDJBPd419iCOgMwsXjh3fyLG3LGoSc3HvQ= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/113856] `(vect64 float){1.0f, 0}` code generation could just be `fmov sN, 1.0f` Date: Thu, 15 Feb 2024 06:38:47 +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: 14.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: enhancement X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: pinskia 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=3D113856 --- Comment #2 from Andrew Pinski --- Note for: ``` #define vect128 __attribute__((vector_size(16) )) vect128 float f1() { return (vect64 float){1.0f, 1.0f, 0.0f, 0.0f}; } ``` Should also be able to do: ``` fmov v0.2s, 1.0 ``` The instruction here does zero the upper parts of the register too. I have a patch for that too.=