From patchwork Tue May 16 19:41:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 682391 Delivered-To: patch@linaro.org Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp18974wrt; Tue, 16 May 2023 12:51:59 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ4jF6pbrW/2zj8PYVdHem/eWw/O4hs95qjzTGlFLiThZGyVHVIbR89i8Sh4jnHzwgqbLQ+B X-Received: by 2002:a05:6214:2a83:b0:61b:68e1:1211 with SMTP id jr3-20020a0562142a8300b0061b68e11211mr43938461qvb.10.1684266719255; Tue, 16 May 2023 12:51:59 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1684266719; cv=none; d=google.com; s=arc-20160816; b=bkWbO4hReQVNty0gX4CO6DFLutJd8YtJqhRjROHJopBzjw8lt92Hi1PtCbgn6/9N+3 6KAawHR1xk02x5h+SxFGgeZCAltYfVLJsZRQijEDHnYwhA2KD41nqDblAafjwmbXAsYc PSsC0oktlmUl0fjP1atWaEbZmWeSRDXS3Xk6S0Sco0ZZJ8QnzRRKBzphs/LA2g9cIKcs JzFntecxBQQv+7KdwHSBAgJE1IvCChQLA/Xcs/q3y7qgAcitKmAMzuB+A4zrDGNwwiFz 9zzzIU8djycjc5A5skOOWArK7bL8T2vP2iS8uNKUqneD/dT9PnUtO1XTrty6OkJyLaSD N7Lg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=k62oH3YiaxNUbwFSA39EGQkVtGdW8K0k9LWPenWZTMA=; b=rKUsb4p70mwOiC8W8ap/9i9uheXosIF+bCa6osr5x+T7e634UOklVw3dSneHerVzRk mrft/bPzhfSpY+AUGM0iRIOcptIZnvtTvnyQhslgtlCd+0XCp7YldmR3CbO0DfP6sCZ3 B3nCDKFuFymmHWWb/8h8MLwthpORfU9BVBBQwxfLI5+Mo2SbsKCFWJHPqSzYALZ4eGyg OT3sit5pJUlGHPs0EO3t4yVa2vWkxdfnNtgVl/ViWfO3ERs+ZNyHaGSnUqJsCVRoHIiU Y8jDEx8Im2hl26YCDP/8d0JNXv1TemyG943uCoeDMufXIg297UmULQOuCyPe5pMimYNN X3Og== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=RKAXd0wY; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id 2-20020a0562140cc200b00623851987b4si25073qvx.153.2023.05.16.12.51.59 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 16 May 2023 12:51:59 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=RKAXd0wY; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pz0eu-0003On-QN; Tue, 16 May 2023 15:48:32 -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 1pz0cT-0000gz-J7 for qemu-devel@nongnu.org; Tue, 16 May 2023 15:46:02 -0400 Received: from mail-pl1-x62d.google.com ([2607:f8b0:4864:20::62d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pz0cI-0003mp-3j for qemu-devel@nongnu.org; Tue, 16 May 2023 15:46:01 -0400 Received: by mail-pl1-x62d.google.com with SMTP id d9443c01a7336-1ae4f28454bso401915ad.3 for ; Tue, 16 May 2023 12:45:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1684266348; x=1686858348; 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=k62oH3YiaxNUbwFSA39EGQkVtGdW8K0k9LWPenWZTMA=; b=RKAXd0wYtIZON71lvjZHeleJ5sGh12TC4jaw9ldIAH5wCrxUuNqnvrpHhN8UzpS2Zp h1PLPI08Eozcy41JUc41iCLo+hnmK23+aLDl+guXpkgvI/HheFfnoGYxwVA/ztoxqHtB hoS6theMXCpFYZukFLRxOovTpby291DpZSQhq8X1ch9VjTAf0goKNwGA+vLHXgP01yrO lc5yF+U8wscwHV1E/GyLOraBSysJmsCtqBKjevCkbjLImdYvRlRlv1/ai8YcozbyrdlS ckNrbrYwVf6BH0HQDgcw8+TmbtPp4vG0HLdIc3RqulC1qD3WG7KcFX8nqj3XhbOZBFg7 /VJw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684266348; x=1686858348; 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=k62oH3YiaxNUbwFSA39EGQkVtGdW8K0k9LWPenWZTMA=; b=hCZbh4E+r5HxrksDR8cLIV42+N3Gx5rot+urZUsbou86jTIJcX0yNtleuhuxlCGJO9 e6g1kJiYTYwFCeTx72D1gGaY4eHHAH5bRL6QolP1APAisZoptzBn9MbZTGpHMeiP2w7E MuoHErOqAtiAV1d7m/tMwgLsMZsS2QfgGxZ8Ype4kBmuboIoBzg5k32LpY9wQhVGpZP0 qxmdVSWCGMQJQthT4mTc7RU9Kz3t6w8bqfPSONrCyJvqG48ZO3HaO0LXSN8F1EGdiU3N Cm0gqgXQXh2UOh7sEaH8uDCw/8vXSpQBKb9u5XTKGVBhM3Xsx5O37YCb5y4MNOrK+kNO ku2w== X-Gm-Message-State: AC+VfDy7Rc056vFlM70tDlYff928mAG2bDOFUXYSh8D3sb3X8G0CtUsr qYSSP24LNbAZW9+IiclOWXN+0hwdizdpX2tl+ug= X-Received: by 2002:a17:902:c102:b0:1ae:436c:b064 with SMTP id 2-20020a170902c10200b001ae436cb064mr2166470pli.8.1684266347859; Tue, 16 May 2023 12:45:47 -0700 (PDT) Received: from stoup.. ([2602:ae:1598:4c01:ec81:440e:33a4:40b9]) by smtp.gmail.com with ESMTPSA id y12-20020a17090abd0c00b002508d73f4e8sm25555pjr.57.2023.05.16.12.45.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 May 2023 12:45:47 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: =?utf-8?q?Alex_Benn=C3=A9e?= , =?utf-8?q?Philipp?= =?utf-8?q?e_Mathieu-Daud=C3=A9?= Subject: [PULL 69/80] tcg/i386: Conditionalize tcg_out_extu_i32_i64 Date: Tue, 16 May 2023 12:41:34 -0700 Message-Id: <20230516194145.1749305-70-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230516194145.1749305-1-richard.henderson@linaro.org> References: <20230516194145.1749305-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::62d; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62d.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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Since TCG_TYPE_I32 values are kept zero-extended in registers, via omission of the REXW bit, we need not extend if the register matches. This is already relied upon by qemu_{ld,st}. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- tcg/i386/tcg-target.c.inc | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc index 647c31fa23..aed5bbd94c 100644 --- a/tcg/i386/tcg-target.c.inc +++ b/tcg/i386/tcg-target.c.inc @@ -1323,7 +1323,9 @@ static void tcg_out_exts_i32_i64(TCGContext *s, TCGReg dest, TCGReg src) static void tcg_out_extu_i32_i64(TCGContext *s, TCGReg dest, TCGReg src) { - tcg_out_ext32u(s, dest, src); + if (dest != src) { + tcg_out_ext32u(s, dest, src); + } } static void tcg_out_extrl_i64_i32(TCGContext *s, TCGReg dest, TCGReg src)