From nobody Mon Feb 9 11:33:09 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1493187965877684.9763068428135; Tue, 25 Apr 2017 23:26:05 -0700 (PDT) Received: from localhost ([::1]:52883 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3GOq-0002N5-NN for importer@patchew.org; Wed, 26 Apr 2017 02:26:04 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49600) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3GMT-0000dk-8n for qemu-devel@nongnu.org; Wed, 26 Apr 2017 02:23:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d3GMR-0000Nh-QZ for qemu-devel@nongnu.org; Wed, 26 Apr 2017 02:23:37 -0400 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:43171) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d3GMO-0000Kb-Az; Wed, 26 Apr 2017 02:23:32 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 075AF21CD6; Wed, 26 Apr 2017 02:23:32 -0400 (EDT) Received: from frontend2 ([10.202.2.161]) by compute4.internal (MEProxy); Wed, 26 Apr 2017 02:23:32 -0400 Received: from localhost (flamenco.cs.columbia.edu [128.59.20.216]) by mail.messagingengine.com (Postfix) with ESMTPA id BBE672469B; Wed, 26 Apr 2017 02:23:31 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=braap.org; h=cc :date:from:in-reply-to:message-id:references:subject:to :x-me-sender:x-me-sender:x-sasl-enc:x-sasl-enc; s=mesmtp; bh=2dp ptLB1W1NDv1yVu4MCEKiQCYy2LkFN80wG8qbd2A0=; b=tJubQ8+MqlFaWfTQET5 0oExMfqUSVkczew+jbrvPgAD5meWXVetYafJuzz6iHf3Orj4/nt34t+L/GaDu8PJ tQrI2HQ9kJwqJK4f0BT2gVSBIKbIUuIsGY5MD6qH5JykCTUvOHCdGNJXAmnjcEDg Tou6xKPcW5otX/OR+LfLl/XQ= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:date:from:in-reply-to:message-id :references:subject:to:x-me-sender:x-me-sender:x-sasl-enc :x-sasl-enc; s=fm1; bh=2dpptLB1W1NDv1yVu4MCEKiQCYy2LkFN80wG8qbd2 A0=; b=q5KATvrZvXdjkDEejkjJM3EAowGLirN3EAAV5tvQKgf4dl8I3cpnq8fWv jeF2UvOiQbWXOZZf2qLCrcpsjpVR7N9nUanRPXQaMmI4noORAgGorn524mqdVqKS pX7qLm1xAH5RDTTpRrur90RK1unUGfmFrBkv5cgYd6O6tbMKD5piTpO6e5OjknEW tdRqq8SlerfHhnIRprgNZj0c7+RD7/L/OofI9A8tXB828rrGGPAX7G6fHi8zYDCw D+CnIeB6BjAEOMtNkE2o5Ff9WqfLgtvNH+trk+1qj+X4m0Jm1+egX69tZjfZKK/g NrJbq1Q0VxL3jzKBAffyksITeuMUQ== X-ME-Sender: X-Sasl-enc: TrZ0t8ar9MuGpGkP3Wddw7aYyJCDSOdJuuB+x2HTqFCJ 1493187811 From: "Emilio G. Cota" To: qemu-devel@nongnu.org Date: Wed, 26 Apr 2017 02:23:21 -0400 Message-Id: <1493187803-4510-9-git-send-email-cota@braap.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1493187803-4510-1-git-send-email-cota@braap.org> References: <1493187803-4510-1-git-send-email-cota@braap.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.111.4.28 Subject: [Qemu-devel] [PATCH v3 08/10] target/i386: optimize cross-page direct jumps in softmmu X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Eduardo Habkost , Peter Crosthwaite , Stefan Weil , Alexander Graf , alex.bennee@linaro.org, qemu-arm@nongnu.org, Pranith Kumar , Paolo Bonzini , Aurelien Jarno , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Instead of unconditionally exiting to the exec loop, use the gen_jr helper to jump to the target if it is valid. Perf impact: see next commit's log. Signed-off-by: Emilio G. Cota Reviewed-by: Richard Henderson --- target/i386/translate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/i386/translate.c b/target/i386/translate.c index 59f6eaa..a065271 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -2154,9 +2154,9 @@ static inline void gen_goto_tb(DisasContext *s, int t= b_num, target_ulong eip) gen_jmp_im(eip); tcg_gen_exit_tb((uintptr_t)s->tb + tb_num); } else { - /* jump to another page: currently not optimized */ + /* jump to another page */ gen_jmp_im(eip); - gen_eob(s); + gen_jr(s, cpu_tmp0); } } =20 --=20 2.7.4