From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B012C49EA6 for ; Sat, 26 Jun 2021 06:50:53 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2857761442 for ; Sat, 26 Jun 2021 06:50:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2857761442 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39022 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lx29U-0003Uw-8R for qemu-devel@archiver.kernel.org; Sat, 26 Jun 2021 02:50:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52242) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lx1vt-0002Jq-Ed for qemu-devel@nongnu.org; Sat, 26 Jun 2021 02:36:49 -0400 Received: from mail-pj1-x1035.google.com ([2607:f8b0:4864:20::1035]:46925) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lx1vr-0000QK-Eg for qemu-devel@nongnu.org; Sat, 26 Jun 2021 02:36:49 -0400 Received: by mail-pj1-x1035.google.com with SMTP id b5-20020a17090a9905b029016fc06f6c5bso6828596pjp.5 for ; Fri, 25 Jun 2021 23:36:46 -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=Y/anbb6DPNvIO8E9zByeUSadBR7zd/opSVuaQ6a6eP4=; b=oK0cGfxKr/2ljlStMqrH8p1JHbSX9Lcxz1/9akjr2cj9ce/BESnEYydPtqt570hSc5 mOubhiqUcaPHsbir2+PZEAUdJ/7IyGxVPvlMGemeyGGFbkHjVSohTm1eslaSwQezV+Gw W5kIq7hxm6dWa9gAH9m2IAO9FLTkKlpJUTu5lces6Xlgo98M18K4mf/8tqVeLYcXh1z8 d9rTyiWpa8d5r7lXQVikKbZHq7IR5wTInQQuPIaLz0BKJWb9DCANLRCCsWg6VrFJvnev qBdL89Pm/aVF3ZZs5iqVP7QDN7dDBESaDAQ7pTak9K7uR7IvxWpTg3UrTRwWqgRQXS4J bhew== 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=Y/anbb6DPNvIO8E9zByeUSadBR7zd/opSVuaQ6a6eP4=; b=hsIGj30wRdkN2MA0jcMRWgk/fw1+NQoklVLkkI4Fdh49Gz1sVTHSqYSG6R054heQgD wbWJooCE3XcksGtymDjjAGNxyOrxCuQbPXFkmo9gc0UFWWUrfXpnthfyAwQAcjos0tlF xRy4mJM3EY2jMG9ksBo3xthRj9SX42EatrWQE6e2rtu9xfesHlCYFxjAIVAI8PvS5knB skCUMWuIauM16UmviajGJeskaOrGQkxrtR8ZVxr5ehIkcDO840Y9yZVQXf2Gb1ERU+jI A20u/VEq8IMtMecyMgqNqTnuOFNYBp/DkUlJ1NIPPf2Sy6LY5HPuLF8cMHwMFLnwSCNB mT8w== X-Gm-Message-State: AOAM532AY4g9llmDkNHxWReT9MLM4oLlMi2LGOmi+FT1qfrCtgb1HFLu LJeYbdHhujJZwWFGVoZundFeuy0Dtn6YLg== X-Google-Smtp-Source: ABdhPJwkq39uwE1OX7mqC9j+hcuEq5B06WHQodR+C2yZx/cL/X2tQseaY6X7kDmaF7YVeMxq8cIhzQ== X-Received: by 2002:a17:90a:e283:: with SMTP id d3mr25280113pjz.12.1624689405924; Fri, 25 Jun 2021 23:36:45 -0700 (PDT) Received: from localhost.localdomain ([71.212.149.176]) by smtp.gmail.com with ESMTPSA id v9sm7724201pgq.54.2021.06.25.23.36.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Jun 2021 23:36:45 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v3 22/29] target/arm: Improve vector REV Date: Fri, 25 Jun 2021 23:36:24 -0700 Message-Id: <20210626063631.2411938-23-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210626063631.2411938-1-richard.henderson@linaro.org> References: <20210626063631.2411938-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1035; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1035.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 , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" We can eliminate the requirement for a zero-extended output, because the following store will ignore any garbage high bits. Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- 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 opcode, 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); -- 2.25.1