From nobody Tue Feb 10 10:57:35 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1624318361; cv=none; d=zohomail.com; s=zohoarc; b=iGfaMquk2ZgW/BY48GFXMhCkDjeV9ghTArnlE+v9sEi6MoxnV/cC8p3QOul1RhEn+sIdcbUrcwmV9Ozw1G5zmAONLrOuV95Jd5F8yTATae2xdY0KzQ0azWKzkCj6YfJ7R2Wqg7dchKkUfJe20NZA8kQVUfWbH20Mh+oLeBh96pc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1624318361; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=UelU97hoekIGhPpWADV+x6IGBUO6uugBAMvKK1hARaE=; b=kRiqg3XyFeQ7uipi9AxHwPLK9R/9+ZHkyAxbwEHmBv0411FkxCASKXA577bQaPsNZAZYGNe7cLCYqv7l3e23zvU0SHZ3NP5UIdYiCJd9IfXaoRcZrB1JvPv7VLmuTsIkeCt85Nyc1j7QwviX8HCQ2HQdgn/ECwjp9BKBss81aG4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1624318361505280.35610906513693; Mon, 21 Jun 2021 16:32:41 -0700 (PDT) Received: from localhost ([::1]:45336 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lvTPE-0006Y2-DX for importer@patchew.org; Mon, 21 Jun 2021 19:32:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41910) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lvTC8-00013r-Dc for qemu-devel@nongnu.org; Mon, 21 Jun 2021 19:19:08 -0400 Received: from mail-pl1-x62f.google.com ([2607:f8b0:4864:20::62f]:34449) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lvTC6-000628-Ak for qemu-devel@nongnu.org; Mon, 21 Jun 2021 19:19:08 -0400 Received: by mail-pl1-x62f.google.com with SMTP id h1so9421440plt.1 for ; Mon, 21 Jun 2021 16:19:05 -0700 (PDT) Received: from localhost.localdomain ([71.212.149.176]) by smtp.gmail.com with ESMTPSA id 135sm14429952pgf.20.2021.06.21.16.19.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Jun 2021 16:19:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=UelU97hoekIGhPpWADV+x6IGBUO6uugBAMvKK1hARaE=; b=HoC+LvK2qtoNdNqgwWbtZ0OPJa/tz/uewc4kMNBFoF90/B2S4vqfWOr8mNp/rYztHs HkXuCjdH91or2hJpqF71a/+oqxDYBMSqO0EeqHvppjK5DSEYhEVRw3ib6hB/nA8l6EEH hzCAuX1mlPNFp+8g1yH9raF6TAvb9Z070cRFF58JZsd2kWuXP6pW/VSNckRmk/eZYMKl Bu8Z5SsfIArJRm7N4lvN8Afbvs8zhV5K+rimqPvf6fltzd6x4rZS0TumMg4vzgrO3cP5 /zProZb1td5aH5AkX2zJlcKMnzqpXZrp8gGxrspV7PGe0rYuX7VAAALvz9JR4wfCnMFd H47Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=UelU97hoekIGhPpWADV+x6IGBUO6uugBAMvKK1hARaE=; b=lX6UQvJlx20saKT9472iZhwKNkSHlZzmdgJYL1ykd19sPRDjioYaA1UCS09ZQ95ohn B4vRJ8UThFRjKTaZPnNVWXTLfZRiE8w96ZnBO5Qx982gQbPKY2Dv+5y+xXVRajn/fOAS RJxWZGhCrS0SYJwnvCci14Pty1c5IRZ4ZblfALN7BaHDKActcF1sjawjjwaNTcsc0lsT bP3GR3G8+MdlkPCRsCF6a2GvacQBnFNlMGc+czi9gkbs2i02aQqAV7hm9zvjPKIAYldX 2nd7VYaMADt79ZgwK/jAtiBJMB6x01/W3KLyYh4d4yqe9Y6vk5CpmrDP8PtAQyEXM6XO mGng== X-Gm-Message-State: AOAM530fvk7Pp/ewfPzAbIKG7lnQ92YhDP834bCyYAElzI3ZRtDlmU7g JAgIZdoGckScQ/PO5/9LatRSzXBV8OAWdg== X-Google-Smtp-Source: ABdhPJytyXqlTN6szTQ3Rfb4phzAbxOeb1DFbadzRQPHEQb1sQ4QtVXQNW93z8r872zN6WR9yG6pPQ== X-Received: by 2002:a17:90a:f293:: with SMTP id fs19mr619640pjb.149.1624317544935; Mon, 21 Jun 2021 16:19:04 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 22/29] target/arm: Improve vector REV Date: Mon, 21 Jun 2021 16:18:42 -0700 Message-Id: <20210621231849.1871164-23-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210621231849.1871164-1-richard.henderson@linaro.org> References: <20210621231849.1871164-1-richard.henderson@linaro.org> 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::62f; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, 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: Peter Maydell Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" We can eliminate the requirement for a zero-extended output, because the following store will ignore any garbage high bits. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- target/arm/translate-a64.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 304fd3d370..1a40e49db7 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -12444,12 +12444,10 @@ static void handle_rev(DisasContext *s, int opcod= e, bool u, read_vec_element(s, tcg_tmp, rn, i, grp_size); switch (grp_size) { case MO_16: - tcg_gen_bswap16_i64(tcg_tmp, tcg_tmp, - TCG_BSWAP_IZ | TCG_BSWAP_OZ); + tcg_gen_bswap16_i64(tcg_tmp, tcg_tmp, TCG_BSWAP_IZ); break; case MO_32: - tcg_gen_bswap32_i64(tcg_tmp, tcg_tmp, - TCG_BSWAP_IZ | TCG_BSWAP_OZ); + tcg_gen_bswap32_i64(tcg_tmp, tcg_tmp, TCG_BSWAP_IZ); break; case MO_64: tcg_gen_bswap64_i64(tcg_tmp, tcg_tmp); --=20 2.25.1