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Mon, 03 Jun 2024 17:58:41 -0700 (PDT) Message-ID: Date: Mon, 3 Jun 2024 19:58:38 -0500 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v2 5/6] target/riscv: rvv: Optimize v[l|s]e8.v with limitations To: Max Chou , qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: dbarboza@ventanamicro.com, Palmer Dabbelt , Alistair Francis , Bin Meng , Weiwei Li , Liu Zhiwei References: <20240531174504.281461-1-max.chou@sifive.com> <20240531174504.281461-6-max.chou@sifive.com> <1016c817-d1e0-4dbd-8fd9-921bcdc23a0a@linaro.org> <595c3be7-7a33-4812-a80c-975b2eaaf5a6@sifive.com> Content-Language: en-US From: Richard Henderson In-Reply-To: <595c3be7-7a33-4812-a80c-975b2eaaf5a6@sifive.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::f33; envelope-from=richard.henderson@linaro.org; helo=mail-qv1-xf33.google.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 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, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_SBL_CSS=3.335, 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 6/3/24 10:50, Max Chou wrote: > Hi Richart, > > Thank you for your feedback. > This version is created by referencing the gen_sve_ldr translation function with the > similar assumptions that no mask(predication)/no tail agnostic/continuous load & store. Except that gen_sve_ldr has a compile-time constant for the vector length, which is always a multiple of 16, and so has no extra special cases like you needed. r~