From nobody Mon Feb 9 11:51:34 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 1647695550777801.5567702268022; Sat, 19 Mar 2022 06:12:30 -0700 (PDT) Received: from localhost ([::1]:46244 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nVYsf-0004lN-DE for importer@patchew.org; Sat, 19 Mar 2022 09:12:29 -0400 Received: from eggs.gnu.org ([209.51.188.92]:57684) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nVYY0-0005Cx-Fs; Sat, 19 Mar 2022 08:51:08 -0400 Received: from mail-b.sr.ht ([173.195.146.151]:36008) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nVYXz-0003Z1-0g; Sat, 19 Mar 2022 08:51:08 -0400 Received: from git.sr.ht (unknown [173.195.146.142]) by mail-b.sr.ht (Postfix) with ESMTPSA id 11B1211EF91; Sat, 19 Mar 2022 12:50:42 +0000 (UTC) Authentication-Results: mail-b.sr.ht; dkim=none From: ~eopxd Date: Mon, 07 Mar 2022 04:21:37 -0800 Subject: [PATCH qemu 11/13] target/riscv: rvv: Add tail agnostic for vector reduction instructions Message-ID: <164769423983.18409.14760549429989700286-11@git.sr.ht> X-Mailer: git.sr.ht In-Reply-To: <164769423983.18409.14760549429989700286-0@git.sr.ht> To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org 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 Cc: Frank Chang , Alistair Francis , Bin Meng , Palmer Dabbelt , eop Chen Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1647695552747100001 From: eopXD Signed-off-by: eop Chen Reviewed-by: Frank Chang --- target/riscv/vector_helper.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 63746f3321..37dc0eb9b3 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -4495,6 +4495,9 @@ 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 env_archcpu(env)->cfg.vlen >> 3; \ + uint32_t vta =3D vext_vta(desc); \ uint32_t i; \ TD s1 =3D *((TD *)vs1 + HD(0)); \ \ @@ -4507,6 +4510,9 @@ 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_fns[ctzl(esz)](vd, vta, 1, esz, \ + vlenb); \ } =20 /* vd[0] =3D sum(vs1[0], vs2[*]) */ @@ -4612,6 +4618,9 @@ 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 env_archcpu(env)->cfg.vlen >> 3; + uint32_t vta =3D vext_vta(desc); uint32_t i; uint32_t s1 =3D *((uint32_t *)vs1 + H4(0)); =20 @@ -4625,6 +4634,8 @@ 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_fns[ctzl(esz)](vd, vta, 1, esz, vlenb); } =20 void HELPER(vfwredsum_vs_w)(void *vd, void *v0, void *vs1, @@ -4632,6 +4643,9 @@ 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 env_archcpu(env)->cfg.vlen >> 3; + uint32_t vta =3D vext_vta(desc); uint32_t i; uint64_t s1 =3D *((uint64_t *)vs1); =20 @@ -4645,6 +4659,8 @@ 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_fns[ctzl(esz)](vd, vta, 1, esz, vlenb); } =20 /* --=20 2.34.1