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[173.197.98.123]) by smtp.gmail.com with ESMTPSA id w66sm27366075pfi.63.2017.07.15.10.31.09 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 15 Jul 2017 10:31:09 -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=cm6qv+J5qtUAtr/6e9moYaYNL4ayYT2KD4kLx+i2oWk=; b=ZR+K8jdenRA4T0vil6cDJnkX2pclwXLYKK3KNjCbODximcGRTc8A8cUXUs8uyonQ5K lHSK2UgtXRXDu4hDDFNfsfk1P5yKwDmKfzyGeO8J6CyQduoMwmQ/aw/ajeB9GfXS0f7u ZsnXT2ktmHK2IVK7poijb+kTCeAe8tbAptlS53cDEeiRFgYnvNidaZy4jW54XmnuQ0VL 9Zry/D/ErU2C+2zUdt83/Fio7wGDpTI1u0Oi9CNw8VsDbGhCrZjQZZm5QBYRmZY/hJNr rK3gq2qD/yCw1x3k1OYU7Vl/TMs3OlTPSUpk01pzblTC1UCbzNCsuC3FVEfCDNA77WnZ R2fQ== 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=cm6qv+J5qtUAtr/6e9moYaYNL4ayYT2KD4kLx+i2oWk=; b=IJQgH6HYKcWZno3M36bnIS727nnJbIqierYUOhNn3fphh45gNY6hPfErGUmIA7XwNR GucjhG2NTayWzc4rBV1qh47V2D6a8nPi61E2PEUSTIVac1IE9vIKnueOBxqy5w5iYfXq XH+GEMfquuVsuo9L3QYyp1ZNw2ovLrVH6P99Mgv2aqan6H3SVftnv2tF6DlhOUkrUYul qippj7eZ3oMWXedwvv5/DBWqAfSvCESwpd9NSfSiOG/QOwz4nJBJpW++7PZkPIG/74Lg oerIYnCnEK0KQ7Ct6B1ey1HyjdAVFCs1Tvdmwt0isKNxRrkfc81Ya8GwFIwnO50V1jEA z/4g== X-Gm-Message-State: AIVw1100QYOdUWBQ093jry+vSYSZur4VeMyxvOJ/Bj8SlUbgcgf/JCSi yVGS2r9JjtXDtLybN6M= X-Received: by 10.99.163.26 with SMTP id s26mr20991129pge.232.1500139870403; Sat, 15 Jul 2017 10:31:10 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Sat, 15 Jul 2017 07:30:50 -1000 Message-Id: <20170715173050.31018-9-rth@twiddle.net> X-Mailer: git-send-email 2.9.4 In-Reply-To: <20170715173050.31018-1-rth@twiddle.net> References: <20170715173050.31018-1-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400e:c00::244 Subject: [Qemu-devel] [PULL 8/8] target/s390x: Fix risbg handling 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@linaro.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 rotation is to the left, but extract shifts to the right. The computation of the extract parameters needs adjusting. For the entry condition, simplify 64 - rot + len <=3D 64 -rot + len <=3D 0 len <=3D rot Reviewed-by: Aurelien Jarno Reported-by: David Hildenbrand Suggested-by: Aurelien Jarno Signed-off-by: Richard Henderson --- target/s390x/translate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/s390x/translate.c b/target/s390x/translate.c index b46f4c8..1dffcee 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -3479,8 +3479,8 @@ static ExitStatus op_risbg(DisasContext *s, DisasOps = *o) } =20 /* In some cases we can implement this with extract. */ - if (imask =3D=3D 0 && pos =3D=3D 0 && len > 0 && rot + len <=3D 64) { - tcg_gen_extract_i64(o->out, o->in2, rot, len); + if (imask =3D=3D 0 && pos =3D=3D 0 && len > 0 && len <=3D rot) { + tcg_gen_extract_i64(o->out, o->in2, 64 - rot, len); return NO_EXIT; } =20 --=20 2.9.4