• mstarzinger's avatar
    [fullcodegen] Implement operand stack depth tracking. · 38915ed7
    mstarzinger authored
    This implements a mechanism to track the exact depth of the operand
    stack in full-codegen for every sub-expression visitation. So far we
    only tracked the depth at statement level, but not at expression level.
    With the introduction of do-expressions it will be possible to construct
    local control flow (i.e. break, continue and friends) that target labels
    at an arbitrary operand stack depth, making this tracking a prerequisite
    for full do-expression support.
    
    R=rossberg@chromium.org,jarin@chromium.org
    BUG=v8:4755,v8:4488
    LOG=n
    
    Review URL: https://codereview.chromium.org/1706283002
    
    Cr-Commit-Position: refs/heads/master@{#34211}
    38915ed7
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