Thank you. This is very helpful. On Thursday, February 16, 2023 at 5:22:58 PM UTC+8 qiuji....@gmail.com wrote:
> By searching in the Chromium gerrit for the git commit history of the > addition of the ymm register, it's found that Intel had been working for > 256bit wide vector instructions since 2021. ( > https://chromium-review.googlesource.com/q/owner:jie...@intel.com > <https://chromium-review.googlesource.com/q/owner:jie....@intel.com>) . > > From the CL https://chromium-review.googlesource.com/c/v8/v8/+/3411357 > you can see re-vectorization phase is added to the wasm pipeline so that > for Intel platforms 256bit-wide vector can be used to squeeze hardware > computation power. > > > 'Qiaowen Yang' via v8-users <v8-u...@googlegroups.com> 于2023年2月15日周三 > 17:36写道： > >> I found that x86 assembler includes ymm registers, which are 256-bits in >> length. I am wondering what this will be used in V8. >> V8 does not have auto-vectorization, and the simd instructions in V8 all >> come from webassembly, which only has a `v128` data type. So, how will ymm >> registers be used in V8? >> >> -- >> -- >> v8-users mailing list >> v8-u...@googlegroups.com >> http://groups.google.com/group/v8-users >> --- >> You received this message because you are subscribed to the Google Groups >> "v8-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to v8-users+u...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/v8-users/2f54d449-d6e6-4184-9465-b90c189a629cn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/v8-users/2f54d449-d6e6-4184-9465-b90c189a629cn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-users/fede252f-71cb-4add-b433-af38de17c75bn%40googlegroups.com.
