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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 16690C77B61 for ; Sat, 8 Apr 2023 02:49:42 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pkyYL-0007LE-8h; Fri, 07 Apr 2023 22:43:45 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pkyYI-0007HN-Ey for qemu-devel@nongnu.org; Fri, 07 Apr 2023 22:43:42 -0400 Received: from mail-pl1-x62c.google.com ([2607:f8b0:4864:20::62c]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pkyY3-0005cx-9i for qemu-devel@nongnu.org; Fri, 07 Apr 2023 22:43:42 -0400 Received: by mail-pl1-x62c.google.com with SMTP id o2so360149plg.4 for ; Fri, 07 Apr 2023 19:43:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1680921806; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=xzu39GMRV6RuI6NlIOVSyEEbNk34csPDYcvNvBnA8aU=; b=BV4QZLoD9jWd/KXOoAfWwR5QX2ZB5xwkbSayYZPtKFJA7xaXLzTS5HqJyGZPLYlOm2 dNfmSkrBjBUqD/vKNXWMPv0ZBfxpU2GmNNAhhaZpdxqKYcZoFfYW/pqwtQYtmKU6FaOL 9k+grM5btznLFtRGn10n4ASK4z4v6zk5JwwuUpfenyBGsPISlJ0koP0ZLSK9hOzK+LeW f5781+DGyR48TS2OAUabQUWlK52TxLbY2bzlt85j2Oj3IBFYwXsGnLxZ5CCbw9XMaDuc p60Pvtg7tS8bL/6+B9+3kxiUzfsngtCpnK7NS/KcZlzM/cCSHWtnoUH4cvFnBp9MP5ST R8Nw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680921806; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=xzu39GMRV6RuI6NlIOVSyEEbNk34csPDYcvNvBnA8aU=; b=qweH5xIlzp1DyOtxhSoybYQTiUN7bOO6jwwEIjck7jUhH3CAkssq7RLo2WjLpjIbYl puHFiiZ9dqQthwrr+FdU9rnpbsfgaDWueEO4G4E+Lhp9muMI4e0RFxFxGvmlG7+tuTcT w65AIIlUglfrP1ENvJD9rz56wqB0BtUyqNMF8H9Q8IVvTDSwm3uGSwb4WQsMp08CWX2m jFGvi2ZNugXrLTKpLDsAKj8qSUx8cs0XvtJgY+B137ANFp2r1wBn+hEyCCMVK9tyY+5y qZ2j5+WAch7XNKr/NBDYnkI1JIvSG0KNDKzmuCSNk09vjvXLvVL0n8PF0dBPVNHRylu+ 9mMw== X-Gm-Message-State: AAQBX9ejOrcYgJHV2djx67NG5lcVLo+oDGBk1JLWQT82CBleihFG1uks IpHbdZYcWQbM7UGaMiQGv5yax6W2IhGD+ytRy4o= X-Google-Smtp-Source: AKy350bjlN+g2dEDL+Z3hNVyW7nM9r6v61fMZl9pFSqzL5F7FEXY6cKd1tSdEX94EpmipjKaNZB7PA== X-Received: by 2002:a17:903:68d:b0:1a5:f:a7c7 with SMTP id ki13-20020a170903068d00b001a5000fa7c7mr4317569plb.0.1680921805877; Fri, 07 Apr 2023 19:43:25 -0700 (PDT) Received: from stoup.. ([2602:ae:1541:f901:8bb4:5a9d:7ab7:b4b8]) by smtp.gmail.com with ESMTPSA id d9-20020a170902c18900b0019d397b0f18sm3530780pld.214.2023.04.07.19.43.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Apr 2023 19:43:25 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, qemu-s390x@nongnu.org, qemu-riscv@nongnu.org, qemu-ppc@nongnu.org Subject: [PATCH 10/42] tcg/loongarch64: Conditionalize tcg_out_exts_i32_i64 Date: Fri, 7 Apr 2023 19:42:42 -0700 Message-Id: <20230408024314.3357414-12-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230408024314.3357414-1-richard.henderson@linaro.org> References: <20230408024314.3357414-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::62c; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62c.google.com X-Spam_score_int: 4 X-Spam_score: 0.4 X-Spam_bar: / X-Spam_report: (0.4 / 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, SUSPICIOUS_RECIPS=2.51 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org Since TCG_TYPE_I32 values are kept sign-extended in registers, via ".w" instructions, we need not extend if the register matches. This is already relied upon by comparisons. Signed-off-by: Richard Henderson --- tcg/loongarch64/tcg-target.c.inc | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc index 989632e08a..b2146988be 100644 --- a/tcg/loongarch64/tcg-target.c.inc +++ b/tcg/loongarch64/tcg-target.c.inc @@ -458,7 +458,9 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg ret, TCGReg arg) static void tcg_out_exts_i32_i64(TCGContext *s, TCGReg ret, TCGReg arg) { - tcg_out_ext32s(s, ret, arg); + if (ret != arg) { + tcg_out_ext32s(s, ret, arg); + } } static void tcg_out_clzctz(TCGContext *s, LoongArchInsn opc, -- 2.34.1