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[v24.x backport] deps: V8: cherry-pick 64b36b441179#64630

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[v24.x backport] deps: V8: cherry-pick 64b36b441179#64630
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@mcollina mcollina commented Jul 20, 2026

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Backport of #61712 to v24.x-staging.

The v24.x V8 baseline requires the simdutf include needed by the new ASCII validation fast path.

Original commit message:

    optimize ascii fast path in WriteUtf8V2

    Change-Id: If28168cb4395b953d0ec642ef4fc618ce963dbcd
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/7124103
    Reviewed-by: Toon Verwaest <verwaest@chromium.org>
    Commit-Queue: Erik Corry <erikcorry@chromium.org>
    Reviewed-by: Erik Corry <erikcorry@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#103542}

Refs: v8/v8@64b36b4
(cherry picked from commit ea1f127)
PR-URL: nodejs#61712
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
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Review requested:

  • @nodejs/gyp
  • @nodejs/security-wg
  • @nodejs/v8-update

@nodejs-github-bot nodejs-github-bot added build Issues and PRs related to build files or the CI. needs-ci PRs that need a full CI run. v24.x Issues that can be reproduced on v24.x or PRs targeting the v24.x-staging branch. v8 engine Issues and PRs related to the V8 dependency. labels Jul 20, 2026
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mcollina requested review from aduh95 and targos July 20, 2026 15:16
@mcollina mcollina added the request-ci Add this label to start a Jenkins CI on a PR. label Jul 20, 2026
@github-actions github-actions Bot removed the request-ci Add this label to start a Jenkins CI on a PR. label Jul 20, 2026
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@aduh95 aduh95 changed the title deps: V8: cherry-pick 64b36b441179 [v24.x backport] deps: V8: cherry-pick 64b36b441179 Jul 20, 2026
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aduh95 pushed a commit that referenced this pull request Jul 21, 2026
Original commit message:

    optimize ascii fast path in WriteUtf8V2

    Change-Id: If28168cb4395b953d0ec642ef4fc618ce963dbcd
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/7124103
    Reviewed-by: Toon Verwaest <verwaest@chromium.org>
    Commit-Queue: Erik Corry <erikcorry@chromium.org>
    Reviewed-by: Erik Corry <erikcorry@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#103542}

Refs: v8/v8@64b36b4
PR-URL: #61712
Backport-PR-URL: #64630
Reviewed-By: Michaël Zasso <targos@protonmail.com>
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