• Dan Elphick's avatar
    Reland "Reland "[compiler] Don't collect source positions for the top frame"" · bf9e3e4d
    Dan Elphick authored
    This is a reland of f2e65226
    
    Nothing has changed but
    https://chromium-review.googlesource.com/c/v8/v8/+/1585269 has been rolled
    back due to v8:9234.
    
    Original change's description:
    > Reland "[compiler] Don't collect source positions for the top frame"
    >
    > Fixed crashes by adding missing call to EnsureSourcePositionsAvailable,
    > which requires clearing and restoring the pending exception.
    >
    > > While most source positions were not collected even throwing exceptions,
    > > the top frame still was always collected as it was used to initialize
    > > the JSMessageObject. This skips even that frame, by storing the
    > > SharedFunctionInfo and bytecode offset in the JSMessageObject allowing
    > > it to lazily evaluate the actual source position.
    > >
    > > Also adds tests to test-api.cc that test each of the source position
    > > functions in isolation to ensure that they don't rely on previous
    > > invocations to call the source collection function.
    > >
    > > Since no source positions are now collected at the point when an
    > > exception is thrown, the mjsunit/stack-traces-overflow now passes again
    > > with the flag enabled. (cctest/test-cpu-profiler/Inlining2 is now the
    > > only failure).
    >
    > Bug: v8:8510
    > Change-Id: Ifa5fe31d3db34a6c6d6a9cef3d646ad620dabd81
    > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601270
    > Commit-Queue: Dan Elphick <delphick@chromium.org>
    > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
    > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#61372}
    
    TBR=ulan@chromium.org
    
    Bug: v8:8510
    Change-Id: Iaa9e376f90d10c0f25d1bcc352808363e4ea8b4d
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1605946Reviewed-by: 's avatarDan Elphick <delphick@chromium.org>
    Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
    Reviewed-by: 's avatarRoss McIlroy <rmcilroy@chromium.org>
    Commit-Queue: Dan Elphick <delphick@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#61418}
    bf9e3e4d
js-objects.h 59.7 KB