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Title: deps: V8: cherry-pick 64b36b441179 by rmagrin · Pull Request #61712 · nodejs/node · GitHub

Open Graph Title: deps: V8: cherry-pick 64b36b441179 by rmagrin · Pull Request #61712 · nodejs/node

X Title: deps: V8: cherry-pick 64b36b441179 by rmagrin · Pull Request #61712 · nodejs/node

Description: Cherry-picks V8 commit 64b36b441179 (ASCII fast path optimization in WriteUtf8V2). This optimizes the WriteUtf8V2 path for ASCII-only one-byte strings by using SIMD-accelerated validation (simdutf::validate_ascii) followed by a bulk memcpy, instead of encoding byte-by-byte through the generic UTF-8 path. Changes: deps/v8/src/strings/unicode-inl.h — Added IsAsciiOneByteString template specializations and ASCII fast path in Encode deps/v8/src/strings/unicode.h — Added IsAsciiOneByteString declarations common.gypi — Incremented embedder string (-node.11 → -node.12) References: V8 commit: v8/v8@64b36b4 Chromium review: https://chromium-review.googlesource.com/c/v8/v8/+/7124103 Supersedes: #61698 (was against v24.x-staging, maintainers requested rebase to main)

Open Graph Description: Cherry-picks V8 commit 64b36b441179 (ASCII fast path optimization in WriteUtf8V2). This optimizes the WriteUtf8V2 path for ASCII-only one-byte strings by using SIMD-accelerated validation (simdutf:...

X Description: Cherry-picks V8 commit 64b36b441179 (ASCII fast path optimization in WriteUtf8V2). This optimizes the WriteUtf8V2 path for ASCII-only one-byte strings by using SIMD-accelerated validation (simdutf:...

Opengraph URL: https://github.com/nodejs/node/pull/61712

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