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[v14.x]: deps: V8: Add Power9/10 to the supported list and enable related features #38508

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miladfarca
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Please note that enum values are slightly different from V8 upstream, i.e PPC_POWER10 instead of kPPCPower10.
Power 9 is also added to some of the features within the ppc assembler, this is to make adding P10 consistent and is not part of the original CL on V8.
We have SIMD enabled upstream which will not be backported here.

Refs: v8/v8@530080c

@github-actions github-actions bot added build Issues and PRs related to build files or the CI. needs-ci PRs that need a full CI run. v14.x v8 engine Issues and PRs related to the V8 dependency. labels May 3, 2021
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nodejs-github-bot commented May 3, 2021

@aduh95 aduh95 changed the title deps: V8: Add Power9/10 to the supported list and enable related features [v14.x]: deps: V8: Add Power9/10 to the supported list and enable related features May 3, 2021
@miladfarca miladfarca requested review from targos and richardlau and removed request for targos May 3, 2021 13:05
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LGTM

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nodejs-github-bot commented May 14, 2021

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miladfarca commented May 14, 2021

@richardlau Similar to #38509, I don't think I will be able to land this on my own either.

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Yes, only members of the backporters and/or release team can land on the staging branches. I'll land this if the CI's currently in progress pass.

richardlau pushed a commit that referenced this pull request May 14, 2021
Original commit message:
    ```
    PPC: Add Power10 to the supported list and enable related features

    This CL adds Power10 recognition to Linux, AIX as well as IBMi.

    Enabled features include:
    MODULO
    FPR_GPR_MOV
    SIMD
    LWSYNC
    ISELECT
    VSX

    Change-Id: Ifc337e6497a3efe9697bcf03063a2b94471f96e9
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2855041
    Reviewed-by: Clemens Backes <clemensb@chromium.org>
    Reviewed-by: Junliang Yan <junyan@redhat.com>
    Reviewed-by: Vasili Skurydzin <vasili.skurydzin@ibm.com>
    Commit-Queue: Milad Fa <mfarazma@redhat.com>
    Cr-Commit-Position: refs/heads/master@{#74279}
    ```

Refs: v8/v8@530080c

PR-URL: #38508
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Ash Cripps <acripps@redhat.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
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Landed in d678277.

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