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[2001:470:27:11::2]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5593c9d0f61sm338296e87.109.2025.07.10.04.35.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Jul 2025 04:35:11 -0700 (PDT) Date: Thu, 10 Jul 2025 14:35:10 +0300 (EEST) From: =?ISO-8859-15?Q?Martin_Storsj=F6?= To: Jiawei In-Reply-To: Message-ID: <7634ba8e-7e76-a11b-98f-d7d5cb61eb1@martin.st> References: <20250613083704.6858-1-jiawei@iscas.ac.cn> <20250614224942.GT5177@pb2> MIME-Version: 1.0 Subject: Re: [FFmpeg-devel] [PATCH v5] gcc: Don't disable '-ftree-vectorize' if gcc version higher than 13. X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: FFmpeg development discussions and patches Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: On Thu, 10 Jul 2025, Jiawei wrote: > Hi Martin, > > Is there any progress for this patch, should I resend it to the mailing list > again? When I posted the updated version of the patch, the patchwork test runners noticed that this patch causes test failures on Loongarch. So modern versions of GCC still do have vectorization bugs, at least on some architectures. I'm unsure if we should allow it everywhere, and just single out loongarch as a case where it is known broken, or if we should only let GCC enable it on the major architectures that we've tested. In either case, we should isolate the compiler bugs on loongarch and report them, as well, so that they have a chance of getting the vectorization to work properly. // Martin _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".