• Leszek Swirski's avatar
    [maglev] Add a write barrier to StoreField · cb4fb3b5
    Leszek Swirski authored
    StoreField wasn't emitting a write barrier after performing the store,
    leading to the usual set of hard-to-debug issues. Now it does.
    
    The write barrier requires some of its registers to be in fixed
    locations, and others to be clobberable. Thsi patch extends the
    temporaries mechanism to allow requesting a specific temporary, in this
    case for the slot address scratch register.
    
    Bug: v8:7700
    Change-Id: I506856071e0f44feafb98c2685ef1b3362b0e41e
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3613388
    Auto-Submit: Leszek Swirski <leszeks@chromium.org>
    Commit-Queue: Toon Verwaest <verwaest@chromium.org>
    Reviewed-by: 's avatarToon Verwaest <verwaest@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#80263}
    cb4fb3b5
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