• Santiago Aboy Solanes's avatar
    [compiler] Have one unique PersistentHandles container · 64828a54
    Santiago Aboy Solanes authored
    The (now unique)PersistentHandles container follows this path:
      1) PersistentHandles created via PersistentHandlesScope inside of
         CompilationHandleScope
      2) Owned by OptimizedCompilationInfo
      3) Owned by JSHeapBroker
      4) Owned by the broker's LocalHeap
      5) Back to the broker for a brief moment (after tearing down the
        LocalHeap as part of exiting LocalHeapScope)
      6) Back to OptimizedCompilationInfo when exiting the LocalHeapScope.
    
    There is a special case in GenerateCodeForTesting where the JSHeapBroker
    will not be retired in that same method. In this case, we need to
    re-attach the PersistentHandles container to the JSHeapBroker.
    
    The identity map of the persistent & canonical handles also gets passed
    around like the persistent handles. The only difference is that is
    created in the CanonicalHandleScope (i.e step 1) is different).
    
    Bug: v8:7790
    Change-Id: I2da77a7e08f3fd360a46b606c5fbda08c0af27df
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332811
    Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
    Reviewed-by: 's avatarGeorg Neis <neis@chromium.org>
    Reviewed-by: 's avatarDominik Inführ <dinfuehr@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#69360}
    64828a54
handles.h 12.5 KB