From nobody Mon Feb 9 13:38:57 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 1493263918321219.73753506140656; Wed, 26 Apr 2017 20:31:58 -0700 (PDT) Received: from localhost ([::1]:58515 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3a9s-0001G5-V0 for importer@patchew.org; Wed, 26 Apr 2017 23:31:57 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37428) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3a7b-0007wd-Ci for qemu-devel@nongnu.org; Wed, 26 Apr 2017 23:29:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d3a7a-0001x0-B6 for qemu-devel@nongnu.org; Wed, 26 Apr 2017 23:29:35 -0400 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:54315) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d3a7U-0001rw-4E; Wed, 26 Apr 2017 23:29:28 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id BEBFA209C5; Wed, 26 Apr 2017 23:29:27 -0400 (EDT) Received: from frontend2 ([10.202.2.161]) by compute4.internal (MEProxy); Wed, 26 Apr 2017 23:29:27 -0400 Received: from localhost (flamenco.cs.columbia.edu [128.59.20.216]) by mail.messagingengine.com (Postfix) with ESMTPA id 80A012471A; Wed, 26 Apr 2017 23:29:27 -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=bKf KCRDHbK2tndXvtx/Z37DY0jqzp1GeJcUMTXEwdic=; b=KzcZZY9f9Jp/Bb1ukyM L1F/LwR4GEPuoZQECSa9GKLOg0qVAeaXTdSFMSv56kwHNnwOlFCHfqypfPOvvSbt 0AOyZAsnNfS9qSqJHt+RCt3UYzchFDiKV3RfDIaJFugfZ/6aUY+cSPP2H48Sgzal fw8f9L07NlZR0gOebPJj9aPk= 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=bKfKCRDHbK2tndXvtx/Z37DY0jqzp1GeJcUMTXEwd ic=; b=BelzoM1WWKDFZ1cwj798nUbKu5Tri54DG/WBW9YHhJlLmviQDU8Wf5EJi EocFb3JK2dnVGEptyxzKYcm3Vj5v/w7E+EMQjVcmZIfFRx8o5tsfLu+pTfuuHPDr igkYX0tOANYqd++Pt7ypbI80zdU83T7BzJI4erKn0dd8BJ2hITVyZ4iIZXLlqwmz GgN4xxGKcn5KZM2mI+hNC6EPqtTSta1cstlcJDwBjNJCXKsr4v6xh9cECyqvvVqQ P9ytSl/JEROwQA+8Y4P33fmCsFsF5HJ4c73j3QyDOrO9k5CkMJyRwCNkDcImspS/ +AIsn32ARn2U+8z1zN+oDQ4tmIodQ== X-ME-Sender: X-Sasl-enc: hcoarO2v1ouWzBmbyDj5SUTmyb0a4EyUjYY9o1iz/VSx 1493263767 From: "Emilio G. Cota" To: qemu-devel@nongnu.org Date: Wed, 26 Apr 2017 23:29:19 -0400 Message-Id: <1493263764-18657-7-git-send-email-cota@braap.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1493263764-18657-1-git-send-email-cota@braap.org> References: <1493263764-18657-1-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 v4 06/11] target/arm: 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 lookup_and_goto_ptr helper to jump to the target if it is valid. Perf impact: see next commit's log. Reviewed-by: Richard Henderson Signed-off-by: Emilio G. Cota --- target/arm/translate.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/target/arm/translate.c b/target/arm/translate.c index e32e38c..02cad96 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -4085,8 +4085,12 @@ static inline void gen_goto_tb(DisasContext *s, int = n, target_ulong dest) gen_set_pc_im(s, dest); tcg_gen_exit_tb((uintptr_t)s->tb + n); } else { + TCGv addr =3D tcg_temp_new(); + gen_set_pc_im(s, dest); - tcg_gen_exit_tb(0); + tcg_gen_extu_i32_tl(addr, cpu_R[15]); + tcg_gen_lookup_and_goto_ptr(addr); + tcg_temp_free(addr); } } =20 --=20 2.7.4