From nobody Mon Feb 9 23:18:18 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=git.sr.ht Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1652346187099474.8495203446256; Thu, 12 May 2022 02:03:07 -0700 (PDT) Received: from localhost ([::1]:47980 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1np4iv-0002Vi-TZ for importer@patchew.org; Thu, 12 May 2022 05:03:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54178) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1np49s-0004jq-Md; Thu, 12 May 2022 04:26:54 -0400 Received: from mail-b.sr.ht ([173.195.146.151]:45236) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1np49q-0005QQ-9z; Thu, 12 May 2022 04:26:52 -0400 Received: from git.sr.ht (unknown [173.195.146.142]) by mail-b.sr.ht (Postfix) with ESMTPSA id 7B60F11F10F; Thu, 12 May 2022 08:26:22 +0000 (UTC) Authentication-Results: mail-b.sr.ht; dkim=none From: ~eopxd Date: Mon, 07 Mar 2022 04:21:37 -0800 Subject: [PATCH qemu v17 13/16] target/riscv: rvv: Add tail agnostic for vector reduction instructions Message-ID: <165234397852.32492.1203149738524050090-13@git.sr.ht> X-Mailer: git.sr.ht In-Reply-To: <165234397852.32492.1203149738524050090-0@git.sr.ht> To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: Palmer Dabbelt , Alistair Francis , Bin Meng , Frank Chang , WeiWei Li , eop Chen Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=173.195.146.151; envelope-from=outgoing@sr.ht; helo=mail-b.sr.ht X-Spam_score_int: 36 X-Spam_score: 3.6 X-Spam_bar: +++ X-Spam_report: (3.6 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_96_XX=3.405, FREEMAIL_FORGED_REPLYTO=2.095, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: ~eopxd Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1652346188478100001 From: eopXD Signed-off-by: eop Chen Reviewed-by: Frank Chang Reviewed-by: Weiwei Li Acked-by: Alistair Francis --- target/riscv/vector_helper.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 7dcb51b6ae..bf3bfea2a8 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -4534,6 +4534,9 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, = \ { \ uint32_t vm =3D vext_vm(desc); \ uint32_t vl =3D env->vl; \ + uint32_t esz =3D sizeof(TD); \ + uint32_t vlenb =3D simd_maxsz(desc); \ + uint32_t vta =3D vext_vta(desc); \ uint32_t i; \ TD s1 =3D *((TD *)vs1 + HD(0)); \ \ @@ -4546,6 +4549,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, = \ } \ *((TD *)vd + HD(0)) =3D s1; \ env->vstart =3D 0; \ + /* set tail elements to 1s */ \ + vext_set_elems_1s(vd, vta, esz, vlenb); \ } =20 /* vd[0] =3D sum(vs1[0], vs2[*]) */ @@ -4615,6 +4620,9 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, = \ { \ uint32_t vm =3D vext_vm(desc); \ uint32_t vl =3D env->vl; \ + uint32_t esz =3D sizeof(TD); \ + uint32_t vlenb =3D simd_maxsz(desc); \ + uint32_t vta =3D vext_vta(desc); \ uint32_t i; \ TD s1 =3D *((TD *)vs1 + HD(0)); \ \ @@ -4627,6 +4635,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, = \ } \ *((TD *)vd + HD(0)) =3D s1; \ env->vstart =3D 0; \ + /* set tail elements to 1s */ \ + vext_set_elems_1s(vd, vta, esz, vlenb); \ } =20 /* Unordered sum */ @@ -4651,6 +4661,9 @@ void HELPER(vfwredsum_vs_h)(void *vd, void *v0, void = *vs1, { uint32_t vm =3D vext_vm(desc); uint32_t vl =3D env->vl; + uint32_t esz =3D sizeof(uint32_t); + uint32_t vlenb =3D simd_maxsz(desc); + uint32_t vta =3D vext_vta(desc); uint32_t i; uint32_t s1 =3D *((uint32_t *)vs1 + H4(0)); =20 @@ -4664,6 +4677,8 @@ void HELPER(vfwredsum_vs_h)(void *vd, void *v0, void = *vs1, } *((uint32_t *)vd + H4(0)) =3D s1; env->vstart =3D 0; + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vta, esz, vlenb); } =20 void HELPER(vfwredsum_vs_w)(void *vd, void *v0, void *vs1, @@ -4671,6 +4686,9 @@ void HELPER(vfwredsum_vs_w)(void *vd, void *v0, void = *vs1, { uint32_t vm =3D vext_vm(desc); uint32_t vl =3D env->vl; + uint32_t esz =3D sizeof(uint64_t); + uint32_t vlenb =3D simd_maxsz(desc); + uint32_t vta =3D vext_vta(desc); uint32_t i; uint64_t s1 =3D *((uint64_t *)vs1); =20 @@ -4684,6 +4702,8 @@ void HELPER(vfwredsum_vs_w)(void *vd, void *v0, void = *vs1, } *((uint64_t *)vd) =3D s1; env->vstart =3D 0; + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vta, esz, vlenb); } =20 /* --=20 2.34.2