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    • bmeurer's avatar
      [turbofan] Add support for transitioning stores to double fields. · 17a65191
      bmeurer authored
      This introduces an AllocateMutableHeapNumberStub for the boxed double
      field case, where we need to allocate a box in case of a transitioning
      store first. We cannot use our inline allocations for this currently,
      because mutable HeapNumber objects have certain alignment constraints,
      and I don't want to mess up Allocate/AllocateInNewSpace eagerly.
      
      Also refactor the PropertyAccessInfoFactory slightly to split the long
      methods into simpler parts.
      
      R=jarin@chromium.org
      BUG=v8:4470
      LOG=n
      
      Review URL: https://codereview.chromium.org/1419173007
      
      Cr-Commit-Position: refs/heads/master@{#31695}
      17a65191
  7. 30 Sep, 2015 1 commit
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    • jkummerow's avatar
      Revert of Simplify and compact transitions storage (patchset #4 id:80001 of... · 948a973d
      jkummerow authored
      Revert of Simplify and compact transitions storage (patchset #4 id:80001 of https://codereview.chromium.org/980573002/)
      
      Reason for revert:
      x64 test failures
      
      Original issue's description:
      > Simplify and compact transitions storage
      >
      > Simple transitions are now stored in a map's "transitions" field (as a WeakCell wrapping the target map); full TransitionArrays are used when that's not sufficient.
      > To encapsulate these storage format implementation details, functions for manipulating and querying transitions have been refactored to be static functions on the TransitionArray class, and take maps as inputs.
      >
      > Committed: https://crrev.com/45fbef7f2252fce10634931cb103ccc1fc95ae6a
      > Cr-Commit-Position: refs/heads/master@{#27029}
      
      TBR=verwaest@chromium.org,ulan@chromium.org
      NOPRESUBMIT=true
      NOTREECHECKS=true
      NOTRY=true
      
      Review URL: https://codereview.chromium.org/982143002
      
      Cr-Commit-Position: refs/heads/master@{#27030}
      948a973d
    • jkummerow's avatar
      Simplify and compact transitions storage · 45fbef7f
      jkummerow authored
      Simple transitions are now stored in a map's "transitions" field (as a WeakCell wrapping the target map); full TransitionArrays are used when that's not sufficient.
      To encapsulate these storage format implementation details, functions for manipulating and querying transitions have been refactored to be static functions on the TransitionArray class, and take maps as inputs.
      
      Review URL: https://codereview.chromium.org/980573002
      
      Cr-Commit-Position: refs/heads/master@{#27029}
      45fbef7f
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