1. 07 Jun, 2021 1 commit
    • Seth Brenith's avatar
      Fix counting ignition dispatches · 82b673bc
      Seth Brenith authored
      The flag --trace-ignition-dispatches has been broken for a long time,
      since it was not designed to work with bytecode handlers that are
      generated ahead of time by mksnapshot. This splits the existing
      --trace-ignition-dispatches logic into two separate parts:
      
      1. A gn argument which instructs mksnapshot to include dispatch counting
         in the bytecode handlers, and ensures that the Interpreter allocates
         the array of counters, and
      2. A runtime flag which enables the ignition-statistics extension which
         implements the JS-accessible function getIgnitionDispatchCounters().
      
      Change-Id: I89323425697f5641451f67b9ddcc0303b8ca209f
      Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2937564Reviewed-by: 's avatarRoss McIlroy <rmcilroy@chromium.org>
      Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
      Cr-Commit-Position: refs/heads/master@{#74992}
      82b673bc