• Mythri A's avatar
    Disable one shot optimizations · e85ffb46
    Mythri A authored
    We used to optimize functions that are expected to executed only
    once by not allocating feedback slots for some of the bytecodes. This
    would help in reducing the memory and avoiding initializing feedback
    that would be never used. With lazy feedback allocation, we don't
    allocate feedback vectors for most of such functions anyway.
    
    The generated bytecode for oneshot optimized functions is different and
    if we don't properly track this information we might end up generating
    different bytecode for the same function. This could causes problems
    when there is a mismatch between the feedback slots used by the new
    bytecode and the old bytecode. Since we potentially get most of the
    benefits of this optimization with lazy feedback vector allocation
    we can simplify the code by disabling this optimization.
    
    Bug: chromium:1045824
    Change-Id: Ib94605c8c766adc99f54c8333f780d2448caff5e
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2030918Reviewed-by: 's avatarToon Verwaest <verwaest@chromium.org>
    Reviewed-by: 's avatarRoss McIlroy <rmcilroy@chromium.org>
    Commit-Queue: Mythri Alle <mythria@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#66172}
    e85ffb46
weak-cell-basics.js 1.17 KB