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[2.142.216.190]) by smtp.gmail.com with ESMTPSA id r12sm5344839wrv.96.2021.09.03.08.36.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 03 Sep 2021 08:36:18 -0700 (PDT) Subject: Re: [PATCH 0/4] target/arm: Use TCG vector ops for MVE To: Peter Maydell References: <20210902150910.15748-1-peter.maydell@linaro.org> <3209af2a-7611-b385-aa7c-6203f442d05b@linaro.org> From: Richard Henderson Message-ID: Date: Fri, 3 Sep 2021 17:36:14 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2a00:1450:4864:20::32a; envelope-from=richard.henderson@linaro.org; helo=mail-wm1-x32a.google.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 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=-0.888, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-arm , QEMU Developers Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 9/3/21 5:20 PM, Peter Maydell wrote: > On Fri, 3 Sept 2021 at 16:14, Richard Henderson > wrote: >> >> On 9/2/21 5:09 PM, Peter Maydell wrote: >>> Richard: if you have time to scan through the MVE insns >>> and suggest which ones would benefit from a vectorized >>> version that would be very helpful... >> >> VDUP >> VMOVL (into shifts or and) >> VMVN (which seems to have gotten separated from the rest of the do_1op) >> VSHL >> VSHR >> VSLI >> VSRI >> >> I think that's about all. > > I guess also VMOV (immediate) (vector) ? Oh right, yes. I skipped VMOV because I remembered that the register version is an alias for VORR. Am I correct that there is no mve insn corresponding to the NEON VLD1 (single element to all lanes)? r~