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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9331EC433EF for ; Thu, 28 Oct 2021 03:27:13 +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 34E2F60EC0 for ; Thu, 28 Oct 2021 03:27:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 34E2F60EC0 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]:44246 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mfw4O-0006fT-3Y for qemu-devel@archiver.kernel.org; Wed, 27 Oct 2021 23:27:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59890) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mfvPp-0001dc-Pf for qemu-devel@nongnu.org; Wed, 27 Oct 2021 22:45:18 -0400 Received: from mail-pj1-x102f.google.com ([2607:f8b0:4864:20::102f]:43720) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mfvPj-0006Up-GK for qemu-devel@nongnu.org; Wed, 27 Oct 2021 22:45:17 -0400 Received: by mail-pj1-x102f.google.com with SMTP id k2-20020a17090ac50200b001a218b956aaso3551383pjt.2 for ; Wed, 27 Oct 2021 19:45:10 -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=A6kctx71i8wzEpW9P/tf7EMU4+ENs8we2z5h5BKjvM0=; b=CS958hBKAXVq+buI5QL55jQMlNyQhosyFRDxa2/PmOkyDgrloLUYAwX6ppr945WdEx Rl6aQEElnCt348TnZP4Fn26tFg7o5HaMMrvOXAxgnkWbo7hV+DCA6t2Oirs9meygPAeU whPVWIQieUElWqJV2YqTjXg9q+ET/Gq82B/kguLMtIzYlAjcYtATrrE+8D4u4DtgYRY2 fbOA3UFIypvigP24c+1FH7mbJm7VYZgzwLPbWSRXgfzEpafXLfcJkroCsAVLEkotv7e8 StE8i8q1fn3vqP860jFt9VASXjYNTqjgBVvoztfBMHNFgP3BfpAKHJ1jBNUZf2ATfKnE v6Yw== 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=A6kctx71i8wzEpW9P/tf7EMU4+ENs8we2z5h5BKjvM0=; b=wdbfHy0ySPcPdYHeT6nvOjPtlOIF4N+5TSt6viOMbJwPYIOqgC3aENtmr6PyoZ+E13 T0TrapZZR1l+Gi1SMvfCoHpbBg2w5axL0y0biJldPAwP8DbQOCLKtMIxhnR8Lx/JDwyM DVn4t5vCyq8MpRFxQYdcL0Sfm+SVsGNDWBVlkCM0AZwu4MDmQDTUM2ujz3pjC8MPeWSr CBQXsaZawoZavuRBruU1cb/dKLWYnDfJdQS/8oMa7H6rk4T0syoP2VRQNeQWZD7rCDbe wOnxj10NaVkiKKq/E2oFE3TbaSm30BPkn0gDyAEMPE7BnMHsxEp9LHQ7B88+AlSOQqfJ yiHg== X-Gm-Message-State: AOAM533hfq5TELRqrqMIn0suJyYNIi5boVM8SnpKvXnK5kOLhDkJlnuy 1oLgWZ9PZYd/kXwWu6mYoG3vr8qSxs5GyQ== X-Google-Smtp-Source: ABdhPJyXfLr/kneGciMtnlYko+1OnkMI76pxrZCoxMIl/PjDhMQv2z1G9WJVnLZ3aTJ4p8mZzgfsFg== X-Received: by 2002:a17:903:1207:b0:138:e2f9:6c98 with SMTP id l7-20020a170903120700b00138e2f96c98mr1480276plh.11.1635389109790; Wed, 27 Oct 2021 19:45:09 -0700 (PDT) Received: from localhost.localdomain ([71.212.134.125]) by smtp.gmail.com with ESMTPSA id z8sm995907pgc.53.2021.10.27.19.45.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Oct 2021 19:45:09 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL 55/56] tcg/optimize: Propagate sign info for bit counting Date: Wed, 27 Oct 2021 19:41:30 -0700 Message-Id: <20211028024131.1492790-56-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211028024131.1492790-1-richard.henderson@linaro.org> References: <20211028024131.1492790-1-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::102f; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102f.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: Luis Pires , =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The results are generally 6 bit unsigned values, though the count leading and trailing bits may produce any value for a zero input. Reviewed-by: Alex Bennée Reviewed-by: Luis Pires Signed-off-by: Richard Henderson --- tcg/optimize.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tcg/optimize.c b/tcg/optimize.c index 5fa4d7285d..c0eccc61d6 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -1229,7 +1229,7 @@ static bool fold_count_zeros(OptContext *ctx, TCGOp *op) g_assert_not_reached(); } ctx->z_mask = arg_info(op->args[2])->z_mask | z_mask; - + ctx->s_mask = smask_from_zmask(ctx->z_mask); return false; } @@ -1249,6 +1249,7 @@ static bool fold_ctpop(OptContext *ctx, TCGOp *op) default: g_assert_not_reached(); } + ctx->s_mask = smask_from_zmask(ctx->z_mask); return false; } -- 2.25.1