> Le 13 novembre 2024 16:16:36 GMT+02:00, Zhao Zhili <quinkblack at foxmail.com > <https://ffmpeg.org/mailman/listinfo/ffmpeg-devel>> a écrit : > >From: Zhao Zhili <zhilizhao at tencent.com > ><https://ffmpeg.org/mailman/listinfo/ffmpeg-devel>> > > > >We don't use intrinsics normally for performance reasons. However, > >WASM isn't machine instruction. > > I don't think that's relevant to the matter. > > What may be relevant is that WASM is an infinite register ISA, so that the > compiler's register allocator will never run out and spill. > > But then again, it will have to be recompiled to a finite register machine > ISA, with probably 8, 16 or 32 vector registers, and if we break whatever the > machine's limit is, performance will suck. > > So I actually expect that assembler will be about as relevant for WASM as it > is for the machine ISA with the fewest vector registers... on that > architecture. > > But in any case, I cannot agree with that unsubstantiated statement. Unless > proven otherwise, assembler is relevant here too. OK, I can remove this misleading information from commit message. I still have no interest to write WASM in handwritten assembly. Does anyone has a plan on WASM SIMD support? If the answer is yes, I can stop at here. The work is only a proof of concept. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
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