• Teodor Dutu's avatar
    Revert "[ptr-compr-8gb] Align runtime allocations to 8 bytes" · a77183b1
    Teodor Dutu authored
    This reverts commit 703b0b31.
    
    Reason for revert: a simpler approach will be used instead.
    
    Original change's description:
    > [ptr-compr-8gb] Align runtime allocations to 8 bytes
    >
    > In order to support a larger heap cage (8GB, 16GB), the cage offset
    > will take up more than 32 bits. As a consequence, for 8GB cages, the
    > least significant bit of the cage offset will overlap with the most
    > significant bit of the tagged offset. To avoid this, allocations need
    > to be aligned to 8 bytes to free up one bit from the offset.
    > All changes are deactivated behind the build flag
    > `v8_enable_pointer_compression_8gb`.
    >
    > Bug: v8:13070
    > Change-Id: Ibb0bd0177f3e88dcd24fc0ee7526335df0faa987
    > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3791052
    > Reviewed-by: Igor Sheludko <ishell@chromium.org>
    > Auto-Submit: Teo Dutu <teodutu@google.com>
    > Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
    > Commit-Queue: Igor Sheludko <ishell@chromium.org>
    > Cr-Commit-Position: refs/heads/main@{#82299}
    
    Bug: v8:13070
    Change-Id: I5cb60f8e4500c908bdef5d417393edbe89652c9c
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3877146Reviewed-by: 's avatarIgor Sheludko <ishell@chromium.org>
    Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
    Auto-Submit: Teo Dutu <teodutu@google.com>
    Reviewed-by: 's avatarDominik Inführ <dinfuehr@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#83030}
    a77183b1
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