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[184.217.116.168]) by smtp.gmail.com with ESMTPSA id i28sm1272525qta.52.2017.06.07.08.55.54 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 07 Jun 2017 08:55:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=K8HMCHx5zRvV1zQsB/GwCPAD9XZBUB9eJudAQ/eqQRc=; b=gBiB3JqFz70u30Uf2YQcegsqwTsJNSzuuGF6B4yK03H/F4liSEueexplCXd29mv/82 CVeYk/Fdpcz4pbP2YN+B1FTL7HPFyMJooVeUMTkedVCbC94qFhAz/CgrMnahuOC/p2W/ AapMoqgRWTz0j3xI5JtSB9MYWJkNS9ojaEgytkKCgt6Mm/SoF03z7aUF6BTT6tXZZHb7 133kABlXrK/5mpc4NBTrcfhQVqxv8KXos3Hcv6+3d+kgtmllc2yJMpIh4s5tmcsYBF2Y 1EjPJ3DY55YGJumrSpBlBc37wC7tOwyV9pTfk+Xmr8qkRoR4TQbYuvwncuMt64r9jBxg zzoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=K8HMCHx5zRvV1zQsB/GwCPAD9XZBUB9eJudAQ/eqQRc=; b=nk72J/mJAxs3mAjYeoDtdkG3AnyADEjac0HdaMgxClnbzdlbucjU04ddO6zInVIAhJ bfcvjesO3D9U1pt+8nZV6Ic5zRy6mxsd5HJU8BiXSiz+BgXx5nYUVjY9l3Wlq30xZuh9 e+A6NS2K+NFXbTCLA74dbHFQ9DYcMPQWtBJomYlpeD292w1TxUJPmAAfKrwF7QBBY1N8 T39S2B2qEfW0/s0ooqxdqAyXe2lDXRzzzkwFbQaigLUvbOwysEH7grzXsurOecVRDJdo yEy0NQmXb9svFJU1t1PKPeUwggvSaZ2Cflc9ESRCfLtDYhu6qB4A+j4IEtUmc1JdYxWC LFlQ== X-Gm-Message-State: AKS2vOxCxDNYrTXAZsrpZsdlMeDqcl3Pehy03V0AYMOk0Zusc67+YPMx 2f5VHBT70mnwu7EY9IE= X-Received: by 10.55.75.20 with SMTP id y20mr4673668qka.2.1496850956429; Wed, 07 Jun 2017 08:55:56 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 7 Jun 2017 08:55:32 -0700 Message-Id: <20170607155536.1193-4-rth@twiddle.net> X-Mailer: git-send-email 2.9.4 In-Reply-To: <20170607155536.1193-1-rth@twiddle.net> References: <20170607155536.1193-1-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400d:c0d::233 Subject: [Qemu-devel] [PATCH v4 3/7] tcg/aarch64: Use ADR in tcg_out_movi 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: cota@braap.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" The new placement of the TB means that we can use one insn to load the return value for exit_tb returning the TB pointer. --- tcg/aarch64/tcg-target.inc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c index 5f18545..1fa3bcc 100644 --- a/tcg/aarch64/tcg-target.inc.c +++ b/tcg/aarch64/tcg-target.inc.c @@ -616,7 +616,12 @@ static void tcg_out_movi(TCGContext *s, TCGType type, = TCGReg rd, /* Look for host pointer values within 4G of the PC. This happens often when loading pointers to QEMU's own data structures. */ if (type =3D=3D TCG_TYPE_I64) { - tcg_target_long disp =3D (value >> 12) - ((intptr_t)s->code_ptr >>= 12); + tcg_target_long disp =3D value - (intptr_t)s->code_ptr; + if (disp =3D=3D sextract64(disp, 0, 21)) { + tcg_out_insn(s, 3406, ADR, rd, disp); + return; + } + disp =3D (value >> 12) - ((intptr_t)s->code_ptr >> 12); if (disp =3D=3D sextract64(disp, 0, 21)) { tcg_out_insn(s, 3406, ADRP, rd, disp); if (value & 0xfff) { --=20 2.9.4