• Michael Starzinger's avatar
    [interpreter] Avoid redundant {PopContext} instructions. · 02fee655
    Michael Starzinger authored
    This avoids emitting redundant {PopContext} bytecode instructions when
    non-local control-flow leaves the method body. It also folds multiple
    such {PopContext} instructions into one, in case several scoping levels
    are crossed at one. Only the expected context of the target of a local
    control-flow transfer matters.
    
    R=rmcilroy@chromium.org
    TEST=debugger/regress/regress-crbug-724858
    BUG=chromium:724858
    
    Change-Id: Id4a47ae9fea25e75ae1af13619720b16a3975edf
    Reviewed-on: https://chromium-review.googlesource.com/512545Reviewed-by: 's avatarRoss McIlroy <rmcilroy@chromium.org>
    Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#45507}
    02fee655
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