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[50.113.46.110]) by smtp.gmail.com with ESMTPSA id q20sm858988pgk.91.2022.02.22.16.07.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 22 Feb 2022 16:07:24 -0800 (PST) Message-ID: <2f09af00-0907-a72e-7b72-c3b5234f6f0b@linaro.org> Date: Tue, 22 Feb 2022 14:07:21 -1000 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH v4 36/47] target/ppc: Implement xvtlsbb instruction Content-Language: en-US To: matheus.ferst@eldorado.org.br, qemu-devel@nongnu.org, qemu-ppc@nongnu.org References: <20220222143646.1268606-1-matheus.ferst@eldorado.org.br> <20220222143646.1268606-37-matheus.ferst@eldorado.org.br> From: Richard Henderson In-Reply-To: <20220222143646.1268606-37-matheus.ferst@eldorado.org.br> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::531 (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::531; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x531.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, NICE_REPLY_A=-0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: =?UTF-8?Q?V=c3=adctor_Colombo?= , groug@kaod.org, danielhb413@gmail.com, clg@kaod.org, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 2/22/22 04:36, matheus.ferst@eldorado.org.br wrote: > + tcg_gen_and_i64(tmp, mask, xb); > + tcg_gen_movcond_i64(TCG_COND_EQ, all_true, tmp, > + mask, all_true, zero); > + > + tcg_gen_andc_i64(tmp, mask, xb); > + tcg_gen_movcond_i64(TCG_COND_EQ, all_false, tmp, > + mask, all_false, zero); I would unroll this and use fewer conditions. t0 = mask & xb[0] t1 = mask & xb[1] o2 = t0 | t1 a2 = t0 & t1 o2 = (o2 == 0) << 1 a2 = (a2 == mask) << 3 crf = o2 | a2 r~