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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 94C3EC4320E for ; Mon, 30 Aug 2021 06:46:30 +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 39F5B60F56 for ; Mon, 30 Aug 2021 06:46:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 39F5B60F56 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:57226 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mKb3t-0007sz-Cm for qemu-devel@archiver.kernel.org; Mon, 30 Aug 2021 02:46:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46460) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mKajI-0004F8-KB for qemu-devel@nongnu.org; Mon, 30 Aug 2021 02:25:12 -0400 Received: from mail-pl1-x62e.google.com ([2607:f8b0:4864:20::62e]:39770) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mKajH-0007bN-1I for qemu-devel@nongnu.org; Mon, 30 Aug 2021 02:25:12 -0400 Received: by mail-pl1-x62e.google.com with SMTP id m17so7933827plc.6 for ; Sun, 29 Aug 2021 23:25:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=qT3pJpxm/CMR3B4sc8UdNVvz1rKuoODGYwGab7PwTiE=; b=zrvJ0pS1XyWGP7RZUGwQHdfP2rfh+DKezcq5NYoQKXLN8j9yolITAXSgOC1RqJi9e4 6r6vKFOcx27w+CqOOLMy7tBDU+HwHHLfh8rppQoI1B67+ZT9dkpDZ5nghEX567aNpoWk bYHaBQrD4vU9G5jIT3KignAScF+vLw7ywr7d47+erkMof/BLbWpaNynnid0HUI+1Wzau S7ZDfmGBi7GEH0UvKDu3y8KxiA0GlbeFMzULey70fOax/jO4XyCLsPT6Fa1Q7jGDsRS6 18N/No7yGCi6YSngxHxuH1FQr+vtnQfyq32px0Sq9IUZdgeKUHhHH7KHCQwpKYC0TDgM zpbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=qT3pJpxm/CMR3B4sc8UdNVvz1rKuoODGYwGab7PwTiE=; b=CQ8aJBogIWOvFcdBgAG7VHCiN2jpgXuIfLuD/TMH+1/ytIhotkPt7vnMSnfbhY/UO2 9FCr2RkSX/x9VRQuAIAvT3M+zgpbo/ycF/ZjctrWgS84V804f4SM9bH2YwahsrHOejJQ fJR4kGgUmu9Z8jIIvjvcjjTHx3XUdXeJgC/VDUdTPLBHH4od5qyGpkk6qJibqTXmJoXy gllErxPOnrDKDJ0V7Iu1ZcK8BbSVjrUvQWCBe1chslfHtwCFbDVl4pylbHGxi/0vuGI+ kc3sJUjPJpyylUD86BJLU1h1OeVOQwrJxQ3SR+yZwN6kY3aHKHKwuk3oAieKkmS/UJSD wX8w== X-Gm-Message-State: AOAM530QmI+Ou+e0ZXTvEzOrCGWfEVxEgWdpwnfhk4zGiB+zw3qpGNv6 GdxAGLWYeMQTAjKWsKqwtjivVsVZa9PFgw== X-Google-Smtp-Source: ABdhPJxCoxljn1VL8RVbHSblNxrRFob3JIqKOxYaqiu4YmrKVcUjZ1PiLW2S5Ar9/bNntJNyxaOvRg== X-Received: by 2002:a17:90b:a48:: with SMTP id gw8mr38012348pjb.145.1630304709748; Sun, 29 Aug 2021 23:25:09 -0700 (PDT) Received: from localhost.localdomain (174-21-72-39.tukw.qwest.net. [174.21.72.39]) by smtp.gmail.com with ESMTPSA id b12sm13942084pff.63.2021.08.29.23.25.09 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 29 Aug 2021 23:25:09 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 26/48] tcg/optimize: Split out fold_count_zeros Date: Sun, 29 Aug 2021 23:24:29 -0700 Message-Id: <20210830062451.639572-27-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210830062451.639572-1-richard.henderson@linaro.org> References: <20210830062451.639572-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::62e; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62e.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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Richard Henderson --- tcg/optimize.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) diff --git a/tcg/optimize.c b/tcg/optimize.c index 74c307951d..79e46fec23 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -875,6 +875,20 @@ static bool fold_call(OptContext *ctx, TCGOp *op) return true; } +static bool fold_count_zeros(OptContext *ctx, TCGOp *op) +{ + if (arg_is_const(op->args[1])) { + uint64_t t = arg_info(op->args[1])->val; + + if (t != 0) { + t = do_constant_folding(op->opc, t, 0); + return tcg_opt_gen_movi(ctx, op, op->args[0], t); + } + return tcg_opt_gen_mov(ctx, op, op->args[0], op->args[2]); + } + return false; +} + static bool fold_ctpop(OptContext *ctx, TCGOp *op) { return fold_const1(ctx, op); @@ -1726,20 +1740,6 @@ void tcg_optimize(TCGContext *s) } break; - CASE_OP_32_64(clz): - CASE_OP_32_64(ctz): - if (arg_is_const(op->args[1])) { - TCGArg v = arg_info(op->args[1])->val; - if (v != 0) { - tmp = do_constant_folding(opc, v, 0); - tcg_opt_gen_movi(&ctx, op, op->args[0], tmp); - } else { - tcg_opt_gen_mov(&ctx, op, op->args[0], op->args[2]); - } - continue; - } - break; - default: break; @@ -1764,6 +1764,10 @@ void tcg_optimize(TCGContext *s) case INDEX_op_brcond2_i32: done = fold_brcond2(&ctx, op); break; + CASE_OP_32_64(clz): + CASE_OP_32_64(ctz): + done = fold_count_zeros(&ctx, op); + break; CASE_OP_32_64(ctpop): done = fold_ctpop(&ctx, op); break; -- 2.25.1