From nobody Mon Feb 9 18:45:25 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1635502145422694.0821234775555; Fri, 29 Oct 2021 03:09:05 -0700 (PDT) Received: from localhost ([::1]:37394 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mgOoq-0007CA-5f for importer@patchew.org; Fri, 29 Oct 2021 06:09:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35710) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mgNmh-0007cc-GZ for qemu-devel@nongnu.org; Fri, 29 Oct 2021 05:02:48 -0400 Received: from mail-pj1-x1031.google.com ([2607:f8b0:4864:20::1031]:41888) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mgNmf-0006ED-G7 for qemu-devel@nongnu.org; Fri, 29 Oct 2021 05:02:47 -0400 Received: by mail-pj1-x1031.google.com with SMTP id na16-20020a17090b4c1000b0019f5bb661f9so6959842pjb.0 for ; Fri, 29 Oct 2021 02:02:45 -0700 (PDT) Received: from localhost.localdomain ([2402:7500:46b:ce55:983b:6962:38ac:e1b9]) by smtp.gmail.com with ESMTPSA id t13sm5081477pgn.94.2021.10.29.02.02.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Oct 2021 02:02:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=FDVelnyvTrVRr2w/aSQUjI8PmccgLdv1IGhjWt6LpFs=; b=VvQiEyHR/LIsRCZzZNOZOtKLe7a58IEhw2/Gs9fIBxPfbMNKHdCuXwzCI94wtr4RcM Id2KovWj3v+bb92055jJNvyub15vvoacBjfQUZ2Mns5YZY29JQM2ITf4JdgJjqkeVGVL vSWEbszmCB3JDHndITwdyFG5usXXQG+AH145aNgMOGSOw72zxh8htuZ2/UdPm6U/z4uQ 6MzjHuKjsmVpJcAEOF6djpFwi5VvywdYdYYAQI2lQIrjkCPkBXErKl3RQpOl7yoScMz5 PYsEj2peJZ/uxgclZSsrJQGjavtLii89mpXKnxQ4e0SuxNDVtq/vY3hd5VXgfO9iWIB8 mKyQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=FDVelnyvTrVRr2w/aSQUjI8PmccgLdv1IGhjWt6LpFs=; b=Ef5q1tkTEPpeU2DrrjnXpqWhcum3XoZqvpronlg3weSwGKXBK/JHTja9vrlPvmWVVS r6ZhWARB3BewWGgrlx8nM1qvz1A0dCnkq3R+DVocuc0A+nvHe+tMkWWVAvh8HQLa0Jrc xDZDBSRSAmERHNCnxfUOVInU+e7QR0FdKQemw9ZLcCUva0c0iiYRpgW6P47moaVRYToJ GVInJZhvSq+vnwWR6eyXB1IeO028vpGf67fDNZYHk6+/o66RTHSx5RuWSCM9p9WA8mN0 /yHgPP6DcD0zqjZl9snJfSjdSo9GmGKC0b1LG1SqIc3YMcnSDU81Lz40w2yA3DPlmOXw Nmqw== X-Gm-Message-State: AOAM531RuSEKI1bKAiOVStvMPFXjNwl46HIvl5dhoihBs8hLEhrMU0YN J/pU+J2TLpCJQ48KBEiejBRBNjDnBT8CxPTn X-Google-Smtp-Source: ABdhPJyt8ezX2Jqxoj+eP6FmiRLhxRbBiU1VwLZxRo+mEmld0IwvGQ8QJTENfFlgjGLRxIOqggY4RQ== X-Received: by 2002:a17:90b:1c8f:: with SMTP id oo15mr18705817pjb.87.1635498164179; Fri, 29 Oct 2021 02:02:44 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org Subject: [PATCH v9 50/76] target/riscv: rvv-1.0: slide instructions Date: Fri, 29 Oct 2021 16:58:55 +0800 Message-Id: <20211029085922.255197-51-frank.chang@sifive.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211029085922.255197-1-frank.chang@sifive.com> References: <20211029085922.255197-1-frank.chang@sifive.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2607:f8b0:4864:20::1031; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1031.google.com X-Spam_score_int: -1 X-Spam_score: -0.2 X-Spam_bar: / X-Spam_report: (-0.2 / 5.0 requ) DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-riscv@nongnu.org, Frank Chang , Bin Meng , Richard Henderson , Alistair Francis , Palmer Dabbelt Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1635502146129100001 Content-Type: text/plain; charset="utf-8" From: Frank Chang * Remove clear function from helper functions as the tail elements are unchanged in RVV 1.0. Signed-off-by: Frank Chang Reviewed-by: Richard Henderson --- target/riscv/vector_helper.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index f883fdf4749..d79f59e443e 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -4430,17 +4430,22 @@ GEN_VEXT_VSLIDEUP_VX(vslideup_vx_d, uint64_t, H8) void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ CPURISCVState *env, uint32_t desc) \ { \ - uint32_t vlmax =3D env_archcpu(env)->cfg.vlen; = \ + uint32_t vlmax =3D vext_max_elems(desc, ctzl(sizeof(ETYPE))); = \ uint32_t vm =3D vext_vm(desc); = \ uint32_t vl =3D env->vl; = \ - target_ulong offset =3D s1, i; = \ + target_ulong i_max, i; \ \ - for (i =3D 0; i < vl; ++i) { = \ - target_ulong j =3D i + offset; = \ - if (!vm && !vext_elem_mask(v0, i)) { \ - continue; \ + i_max =3D MIN(s1 < vlmax ? vlmax - s1 : 0, vl); = \ + for (i =3D 0; i < i_max; ++i) { = \ + if (vm || vext_elem_mask(v0, i)) { \ + *((ETYPE *)vd + H(i)) =3D *((ETYPE *)vs2 + H(i + s1)); = \ + } \ + } \ + \ + for (i =3D i_max; i < vl; ++i) { = \ + if (vm || vext_elem_mask(v0, i)) { \ + *((ETYPE *)vd + H(i)) =3D 0; = \ } \ - *((ETYPE *)vd + H(i)) =3D j >=3D vlmax ? 0 : *((ETYPE *)vs2 + H(j)= ); \ } \ } =20 --=20 2.25.1