1. 05 May, 2021 1 commit
    • Thibaud Michaud's avatar
      [regalloc] Avoid duplicate moves for slot constraint · f6a3ef56
      Thibaud Michaud authored
      We potentially emitted the same gap move multiple times to satisfy slot
      constraint of live ranges defined by a constant. Avoid this by keeping
      track of already spilled ranges for a given instruction.
      
      This is not expected to cause any regression because this case is rare.
      If it does, a better approach to save allocations would be to re-use the
      same vector by storing it somewhere that survives the function calls,
      e.g. in the ConstraintBuilder.
      
      Drive-by: Remove unused functions.
      
      R=sigurds@chromium.org
      CC=nicohartmann@chromium.org
      
      Bug: chromium:1204748
      Change-Id: I75a838a8b27775ecdeddb4c60cf72c56d5f1c2a4
      Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2871462Reviewed-by: 's avatarSigurd Schneider <sigurds@chromium.org>
      Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#74375}
      f6a3ef56