Bug: chromium:1056170
Change-Id: I6b77c06b8c787a00be00b84490155588608c75da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2764464Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73448}

Poisoning unmarked objects serves two purposes:
- Prohibits finalizer from accessing other unmarked objects;
- Unpoisioning also clears potential poisoning of the embedder which
  is necessary as the sweeper and compactor modify the payload of
  objects;

Bug: chromium:1056170
Change-Id: I4346a0ab736603b3d6170b41b0e7255db1452897
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2762137Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73426}

Bug: chromium:1056170
Change-Id: I9151d31a27ed5fc8e8c98b77b2132aaa7ee562e1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2702334Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72836}

Bug: chromium:1056170
Change-Id: I561166a7f1be658c5c35aa1caf8dbbbd2d720ab3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2692815
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Auto-Submit: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72754}

Bug: chromium:1056170
Change-Id: I00511c69e9681a80993bcb8ddb370030fc3d208c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2649030
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72343}

Update scope names to match the new scope naming scheme we settled on.
This CL also:
1) Adds high-level scopes for atomic mark/sweep/compact and incremental
   mark/sweep.
2) Remove scopes that will now become redundant (i.e. SweepAndCompact,
   UnifiedMarkingStep, etc.)

The new scopes are no longer aligned with the existing telemetry code
(gc_metric.html) in blink.

Bug: chromium:1056170
Change-Id: I510269e24172f411b2a98c0a0a250a6e9fe58841
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2563882
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71480}

This reverts commit 64bf4c53.

Reason for revert: fix in patchset 2

Original change's description:
> Revert "cppgc: Use tracing scopes"
>
> This reverts commit 548fe208.
>
> Reason for revert: Issues on Mac64: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20-%20debug/31710
>
> Original change's description:
> > cppgc: Use tracing scopes
> >
> > The scopes themselves mostly have the same coverage as current scopes in
> > blink. A few exception due to encapsulation exist and are highlighted as
> > comments on the CL.
> >
> > Bug: chromium:1056170
> > Change-Id: I48af2cfdfd53a8caa1ab5d805d377f6f13a825bc
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2540552
> > Commit-Queue: Omer Katz <omerkatz@chromium.org>
> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#71285}
>
> TBR=ulan@chromium.org,mlippautz@chromium.org,omerkatz@chromium.org
>
> Change-Id: I20dce9309dcaeff6ea61bdc51df3a2f62c2a103f
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: chromium:1056170
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2550782
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#71289}

TBR=ulan@chromium.org,mlippautz@chromium.org,clemensb@chromium.org,omerkatz@chromium.org

# Not skipping CQ checks because this is a reland.

Bug: chromium:1056170
Change-Id: I9c57cdb3b0d310366cdf3e6fbcd1254fdc363163
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2550666
Auto-Submit: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71305}

This reverts commit 548fe208.

Reason for revert: Issues on Mac64: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20-%20debug/31710

Original change's description:
> cppgc: Use tracing scopes
>
> The scopes themselves mostly have the same coverage as current scopes in
> blink. A few exception due to encapsulation exist and are highlighted as
> comments on the CL.
>
> Bug: chromium:1056170
> Change-Id: I48af2cfdfd53a8caa1ab5d805d377f6f13a825bc
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2540552
> Commit-Queue: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#71285}

TBR=ulan@chromium.org,mlippautz@chromium.org,omerkatz@chromium.org

Change-Id: I20dce9309dcaeff6ea61bdc51df3a2f62c2a103f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1056170
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2550782Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71289}

The scopes themselves mostly have the same coverage as current scopes in
blink. A few exception due to encapsulation exist and are highlighted as
comments on the CL.

Bug: chromium:1056170
Change-Id: I48af2cfdfd53a8caa1ab5d805d377f6f13a825bc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2540552
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71285}

This is a reland of 90ea9b35

Original change's description:
> cppgc: Port backing store compaction.
>
> This CL ports the existing backing store compaction algorithm from
> blink. It does not attempt to improve on the existing algorithm.
>
> Currently only unified heap uses the compaction implementation. It is
> never triggered through standalone GCs.
>
> The compaction implementation resides within an internal "subtle" namespace.
>
> Bug: v8:10990
> Change-Id: I4aa781db1b711e7aafc34234c4fb142de84394d7
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2485228
> Commit-Queue: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Anton Bikineev <bikineev@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70714}

Bug: v8:10990
Change-Id: I527c2042a26648d058bfe4d355527cce9a3eeadc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2492331
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70736}

This reverts commit 90ea9b35.

Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Mac64%20-%20debug/31274?

Original change's description:
> cppgc: Port backing store compaction.
>
> This CL ports the existing backing store compaction algorithm from
> blink. It does not attempt to improve on the existing algorithm.
>
> Currently only unified heap uses the compaction implementation. It is
> never triggered through standalone GCs.
>
> The compaction implementation resides within an internal "subtle" namespace.
>
> Bug: v8:10990
> Change-Id: I4aa781db1b711e7aafc34234c4fb142de84394d7
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2485228
> Commit-Queue: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Anton Bikineev <bikineev@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70714}

TBR=mlippautz@chromium.org,bikineev@chromium.org,omerkatz@chromium.org

Change-Id: Iadae1ee0c6c0400f0e1a0a3805be5316a1d4b979
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10990
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2492330Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70716}

This CL ports the existing backing store compaction algorithm from
blink. It does not attempt to improve on the existing algorithm.

Currently only unified heap uses the compaction implementation. It is
never triggered through standalone GCs.

The compaction implementation resides within an internal "subtle" namespace.

Bug: v8:10990
Change-Id: I4aa781db1b711e7aafc34234c4fb142de84394d7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2485228
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70714}