• Ben Smith's avatar
    [wasm] Parse DataCount section for bulk-memory · cb62c6ed
    Ben Smith authored
    The bulk-memory proposal adds a new DataCount section that declares the
    number of data segments that are expected to be seen in the Data
    section. This is similar to the way the number of functions is split
    between the Function and Code sections.
    
    The DataCount section occurs before the Code section, so we can do
    single-pass validation of the new `memory.init` and `memory.drop`
    instructions, which have data segment indices as immediates.
    
    Bug: v8:7747
    Change-Id: Ibc5a7ee9336dbc5d0fd667572c42cb065c048e00
    Reviewed-on: https://chromium-review.googlesource.com/c/1352792
    Commit-Queue: Ben Smith <binji@chromium.org>
    Reviewed-by: 's avatarClemens Hammacher <clemensh@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#57951}
    cb62c6ed
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