From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from xry111.site (xry111.site [IPv6:2001:470:683e::1]) by sourceware.org (Postfix) with ESMTPS id A20173858D39 for ; Thu, 3 Nov 2022 14:39:53 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org A20173858D39 Authentication-Results: sourceware.org; dmarc=pass (p=reject dis=none) header.from=xry111.site Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=xry111.site DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=xry111.site; s=default; t=1667486390; bh=DiU6hDHVnlGCPvM0bKcgxS6DSf2CqaAVfN0xqrze9pY=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=X8kpmqJ44CNit1d7kok3GAj/F/P1GqOIMxoCAcfPAG4xELbHmfF5Po7PaC751CuhI CqutHJW1qm8nn+XXTHFy0YgHDAEA/9kJlqMPOEgHqyec9yE5DyE7aY+zhmjR3F/rd8 GDM7nvruvdQvdQYU3AUWFwo4B7nzynNqH8EQqod4= Received: from [IPv6:240e:358:1130:1500:dc73:854d:832e:2] (unknown [IPv6:240e:358:1130:1500:dc73:854d:832e:2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-384) server-digest SHA384) (Client did not present a certificate) (Authenticated sender: xry111@xry111.site) by xry111.site (Postfix) with ESMTPSA id 0B63066797; Thu, 3 Nov 2022 10:39:43 -0400 (EDT) Message-ID: Subject: Re: [PATCH 1/1] LoongArch: Hard Float Support Of Math Functions. From: Xi Ruoyao To: Adhemerval Zanella Netto , Xiaolin Tang , libc-alpha@sourceware.org, caiyinyu@loongson.cn, i.swmail@xen0n.name Cc: xuchenghua@loongson.cn Date: Thu, 03 Nov 2022 22:39:33 +0800 In-Reply-To: <314832e8-4db6-ad12-b8e4-bd766cadc551@linaro.org> References: <20221103121433.2909287-1-tangxiaolin@loongson.cn> <20221103121433.2909287-2-tangxiaolin@loongson.cn> <314832e8-4db6-ad12-b8e4-bd766cadc551@linaro.org> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.46.0 MIME-Version: 1.0 X-Spam-Status: No, score=1.1 required=5.0 tests=BAYES_00,BODY_8BITS,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FROM_SUSPICIOUS_NTLD,LIKELY_SPAM_FROM,PDS_OTHER_BAD_TLD,SPF_HELO_PASS,SPF_PASS,TXREP autolearn=no autolearn_force=no version=3.4.6 X-Spam-Level: * X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On Thu, 2022-11-03 at 09:42 -0300, Adhemerval Zanella Netto via Libc-alpha = wrote: > On 03/11/22 09:14, Xiaolin Tang wrote: > > fcopysign.{s/d=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 __copysign{f/ } >=20 > GCC already implements a generic builtin copysign that expands it without= a=20 > libcall, I prefer to implement it on compiler (which I presume it will be= on > 13, since on gcc 12 I do see fcopysign.d).=C2=A0 I will send a patch to r= emove > the RISCV version as well. GCC trunk still generates some nasty thing for __builtin_copysign yet: movfr2gr.d $r12,$f1 fabs.d $f0,$f0 bge $r12,$r0,.L1 fneg.d $f0,$f0 .L1: jr $r1 Fortunately we still have ten days before GCC 13 stage 1 ends. I'll try to fix it... --=20 Xi Ruoyao School of Aerospace Science and Technology, Xidian University