• Jakob Gruber's avatar
    Reland "[ia32,root] Add indirect calls and jumps through virtual register" · d25088e9
    Jakob Gruber authored
    This is a reland of 65070355
    
    Original change's description:
    > [ia32,root] Add indirect calls and jumps through virtual register
    >
    > This adds a temporary mechanism for isolate-independent calls and
    > jumps.  The problem was that - as ia32 doesn't have a scratch register
    > - Call and Jump cannot call through a register. This CL adds a
    > so-called virtual register (= a pointer-sized field) on IsolateData.
    >
    > The virtual register can be removed once pc-relative calls are
    > implemented and all builtins have been embedded.
    >
    > Bug: v8:6666
    > Change-Id: I1f9d8a25643fad0b3919dd813dbe219d20fcc6bc
    > Reviewed-on: https://chromium-review.googlesource.com/c/1282991
    > Commit-Queue: Jakob Gruber <jgruber@chromium.org>
    > Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
    > Reviewed-by: Igor Sheludko <ishell@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#56693}
    
    TBR=sigurds@chromium.org
    
    Bug: v8:6666
    Change-Id: If463e68036673c7873d0d5e1a8a01ef31263cbfa
    Reviewed-on: https://chromium-review.googlesource.com/c/1283052
    Commit-Queue: Jakob Gruber <jgruber@chromium.org>
    Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
    Reviewed-by: 's avatarSigurd Schneider <sigurds@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#56700}
    d25088e9
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