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[97.113.7.119]) by smtp.gmail.com with ESMTPSA id e127sm9928468pfe.37.2019.09.18.08.14.55 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Sep 2019 08:14:55 -0700 (PDT) To: =?UTF-8?Q?Alex_Benn=c3=a9e?= References: <20190917184109.12564-1-alex.bennee@linaro.org> <20190917184109.12564-8-alex.bennee@linaro.org> <877e661vur.fsf@linaro.org> <93ff7174-77c0-d2eb-eac2-d3eef7e88a14@linaro.org> <87zhj1zvnl.fsf@linaro.org> From: Richard Henderson Openpgp: preference=signencrypt Message-ID: <376bc2c5-b5c7-b35a-1adb-460b37cd4a6a@linaro.org> Date: Wed, 18 Sep 2019 08:14:53 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <87zhj1zvnl.fsf@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::644 Subject: Re: [Qemu-devel] [PATCH v1 7/9] tests/tcg: add float_madds test to multiarch 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: peter.maydell@linaro.org, qemu-arm@nongnu.org, =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 9/18/19 4:33 AM, Alex Bennée wrote: >>> Ahh I was going to hardcode the arm madd instruction in as the builtin >>> wasn't expanding. I tried setting -march in the CFLAGS but that didn't >>> trigger it either on my buster arm-hf compiler. Any ideas how to get the >>> compiler to do the right thing? >> >> I think you want -mfpu=neon-vfpv4. > > Ahh that worked. I would have hoped that v8 would be enough to spit out > aarch32 code which has to have VFPv4 for A profile right? I would have thought so. I'm not sure why -march=armv8-a wouldn't work. r~