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    • Marja Hölttä's avatar
      Revert "[in-place weak refs] Fix MaybeObject function names" · 3a79fe23
      Marja Hölttä authored 
      This reverts commit ad72d195.

Reason for revert: Build failures on *san

Original change's description:
> [in-place weak refs] Fix MaybeObject function names
> 
> E.g., "ToWeakHeapObject" was misleading, since it didn't convert to a weak heap
> object, instead returned a weakly pointed heap object. Change the function names
> (in this case, to "GetHeapObjectIfWeak") to reflect this.
> 
> Also make casts explicit, if a MaybeObject is an Object, we can call cast<Object>().
> 
> BUG=v8:7308
> 
> Change-Id: I4ef078572b4f4415afe7e2e706d3bd684e16e47d
> Reviewed-on: https://chromium-review.googlesource.com/1219025
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Marja Hölttä <marja@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55906}

TBR=ulan@chromium.org,marja@chromium.org,yangguo@chromium.org,ahaas@chromium.org,tebbi@chromium.org,ishell@chromium.org

Change-Id: I054b578518e3f6fd7dbcddf0b56cc018726c1e7a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7308
Reviewed-on: https://chromium-review.googlesource.com/1226874Reviewed-by: 's avatarMarja Hölttä <marja@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55918}
      3a79fe23
    • Marja Hölttä's avatar
      [in-place weak refs] Fix MaybeObject function names · ad72d195
      Marja Hölttä authored 
      E.g., "ToWeakHeapObject" was misleading, since it didn't convert to a weak heap
object, instead returned a weakly pointed heap object. Change the function names
(in this case, to "GetHeapObjectIfWeak") to reflect this.

Also make casts explicit, if a MaybeObject is an Object, we can call cast<Object>().

BUG=v8:7308

Change-Id: I4ef078572b4f4415afe7e2e706d3bd684e16e47d
Reviewed-on: https://chromium-review.googlesource.com/1219025Reviewed-by: 's avatarIgor Sheludko <ishell@chromium.org>
Reviewed-by: 's avatarTobias Tebbi <tebbi@chromium.org>
Reviewed-by: 's avatarYang Guo <yangguo@chromium.org>
Reviewed-by: 's avatarAndreas Haas <ahaas@chromium.org>
Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55906}
      ad72d195
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  31. 05 Mar, 2018 3 commits
  33. 10 Aug, 2017 1 commit
    • Ulan Degenbaev's avatar
      [heap] Refactor object marking state. · 4af9cfcc
      Ulan Degenbaev authored 
      This patch merges ObjectMarking and MarkingState. The new marking state
encapsulates object marking, live byte tracking, and access atomicity.

The old ObjectMarking calls are now replaced with calls to marking
state. For example:
ObjectMarking::WhiteToGrey<kAtomicity>(obj, marking_state(obj)
becomes
marking_state()->WhiteToGrey(obj)

This simplifies custom handling of live bytes and allows to chose
atomicity of markbit accesses depending on collector's state.

This also decouples marking bitmap from the marking code, which will
allows in future to use different data-structure for mark-bits.

Bug: chromium:694255
Change-Id: Ifb4bc0144187bac1c08f6bc74a9d5c618fe77740
Reviewed-on: https://chromium-review.googlesource.com/602132
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: 's avatarMichael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47288}
      4af9cfcc
  35. 24 Jul, 2017 1 commit
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  41. 25 Feb, 2016 1 commit
  43. 24 Feb, 2016 1 commit
    • ulan's avatar
      Revert of Replace slots buffer with remembered set. (patchset #14 id:250001 of... · 9146bc5e
      ulan authored 
      Revert of Replace slots buffer with remembered set. (patchset #14 id:250001 of https://codereview.chromium.org/1703823002/ )

Reason for revert:
Revert because of canary crashes: crbug.com/589413

Original issue's description:
> Replace slots buffer with remembered set.
>
> Slots pointing to evacuation candidates are now recorded in the new RememberedSet<OLD_TO_OLD>.
>
> The remembered set is extended to support typed slots.
>
> During parallel evacuation all migration slots are recorded in local slots buffers.
> After evacuation all local slots are added to the remembered set.
>
> BUG=chromium:578883
> LOG=NO
>
> Committed: https://crrev.com/2285a99ef6f7d52f4f0c4d88a7db4224443ee152
> Cr-Commit-Position: refs/heads/master@{#34212}

TBR=jochen@chromium.org,hpayer@chromium.org,mlippautz@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:578883

Review URL: https://codereview.chromium.org/1725073003

Cr-Commit-Position: refs/heads/master@{#34238}
      9146bc5e
  45. 23 Feb, 2016 1 commit
    • ulan's avatar
      Replace slots buffer with remembered set. · 2285a99e
      ulan authored 
      Slots pointing to evacuation candidates are now recorded in the new RememberedSet<OLD_TO_OLD>.

The remembered set is extended to support typed slots.

During parallel evacuation all migration slots are recorded in local slots buffers.
After evacuation all local slots are added to the remembered set.

BUG=chromium:578883
LOG=NO

Review URL: https://codereview.chromium.org/1703823002

Cr-Commit-Position: refs/heads/master@{#34212}
      2285a99e
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