Commit Graph

566 Commits

Author SHA1 Message Date
Clemens Hammacher
0181cf0b31 Revert "[runtime][gc] Drop AllocationSite::weak_next field for sub-literals"
This reverts commit 380dba0a5c.

Reason for revert: Fails gc-stress: https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Mac64%20GC%20Stress/1471

Original change's description:
> [runtime][gc] Drop AllocationSite::weak_next field for sub-literals
> 
> Use AllocationSite without Weaknext field for all the allocations in nested
> literal except for Root. The nested field is sufficient to link all the
> allocations in a nested literal. Only the Root is added to heap weak_alloc_list
> for GC to traverse
> 
> Change-Id: I946e63292c6d168197cd2a087f697c73cc431272
> Reviewed-on: https://chromium-review.googlesource.com/1101323
> Commit-Queue: Chandan Reddy <chandanreddy@google.com>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53813}

TBR=ulan@chromium.org,cbruni@chromium.org,chandanreddy@google.com

Change-Id: Icc87027f14f917da3033db256c2535e08e2a4a34
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/1105159
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53815}
2018-06-19 07:54:09 +00:00
Creddy
380dba0a5c [runtime][gc] Drop AllocationSite::weak_next field for sub-literals
Use AllocationSite without Weaknext field for all the allocations in nested
literal except for Root. The nested field is sufficient to link all the
allocations in a nested literal. Only the Root is added to heap weak_alloc_list
for GC to traverse

Change-Id: I946e63292c6d168197cd2a087f697c73cc431272
Reviewed-on: https://chromium-review.googlesource.com/1101323
Commit-Queue: Chandan Reddy <chandanreddy@google.com>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53813}
2018-06-19 07:14:17 +00:00
Clemens Hammacher
8e2e125791 Reland "Introduce StdoutStream which prints to Android log or stdout"
This is a reland of 0909dbe3d6.
Added missing V8_EXPORT_PRIVATE to AndroidLogStream.

TBR=mstarzinger@chromium.org

Original change's description:
> Introduce StdoutStream which prints to Android log or stdout
>
> The often used construct {OFStream(stdout)} does not work on Android.
> This CL introduces an {StdoutStream} which behaves exactly like
> {OFStream(stdout)} on non-android platforms, and redirects to the
> Android log on appropriate systems and configurations.
>
> R=mstarzinger@chromium.org
>
> Bug: v8:7820
> Change-Id: Ia682fdf6d064e37c605c19b032f5a10b96ac825b
> Reviewed-on: https://chromium-review.googlesource.com/1088911
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53692}

Bug: v8:7820
Change-Id: I8164bad78a401dbe4246c9ffcacd050fe511ed58
Reviewed-on: https://chromium-review.googlesource.com/1100636
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53733}
2018-06-14 13:29:01 +00:00
Michael Achenbach
d2e1620cd4 Revert "Introduce StdoutStream which prints to Android log or stdout"
This reverts commit 0909dbe3d6.

Reason for revert: Blocks roll:
https://chromium-review.googlesource.com/c/chromium/src/+/1099143

Original change's description:
> Introduce StdoutStream which prints to Android log or stdout
> 
> The often used construct {OFStream(stdout)} does not work on Android.
> This CL introduces an {StdoutStream} which behaves exactly like
> {OFStream(stdout)} on non-android platforms, and redirects to the
> Android log on appropriate systems and configurations.
> 
> R=​mstarzinger@chromium.org
> 
> Bug: v8:7820
> Change-Id: Ia682fdf6d064e37c605c19b032f5a10b96ac825b
> Reviewed-on: https://chromium-review.googlesource.com/1088911
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53692}

TBR=mstarzinger@chromium.org,jarin@chromium.org,jgruber@chromium.org,clemensh@chromium.org,bmeurer@chromium.org

Change-Id: Iadadd9a0df10dca0fad647138a83db50148e864d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7820
Reviewed-on: https://chromium-review.googlesource.com/1100635
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53725}
2018-06-14 06:23:17 +00:00
Dominik Inführ
2aa166a633 [heap] Clear ephemeron worklist when tearing down
Bug: chromium:852308, chromium:844008
Change-Id: I99551c1f75d5916edfb780998963140b8282a570
Reviewed-on: https://chromium-review.googlesource.com/1099065
Commit-Queue: Dominik Inführ <dinfuehr@google.com>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53706}
2018-06-13 15:28:21 +00:00
Clemens Hammacher
0909dbe3d6 Introduce StdoutStream which prints to Android log or stdout
The often used construct {OFStream(stdout)} does not work on Android.
This CL introduces an {StdoutStream} which behaves exactly like
{OFStream(stdout)} on non-android platforms, and redirects to the
Android log on appropriate systems and configurations.

R=mstarzinger@chromium.org

Bug: v8:7820
Change-Id: Ia682fdf6d064e37c605c19b032f5a10b96ac825b
Reviewed-on: https://chromium-review.googlesource.com/1088911
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53692}
2018-06-13 09:57:29 +00:00
Hannes Payer
43886bc305 [heap] Cleanup heap creation a bit.
Change-Id: I7f2d0ba0e544267a9f97838e2904d8dfeecd9a99
Reviewed-on: https://chromium-review.googlesource.com/1095615
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53647}
2018-06-11 18:21:36 +00:00
Leszek Swirski
d6c49a7251 [GetIsolate] Remove GetIsolate in simple cases
Whenever an Isolate is available on a variable, field, or method
parameter, use that instead of GetIsolate(). Also convert simple
cases of the one-argument handle constructor to either use an
available Isolate, or use GetIsolate() if their first parameter
is a variable.

Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I52805905a9ca8729615ead78859f43d5e8f605f1
Reviewed-on: https://chromium-review.googlesource.com/1092853
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53629}
2018-06-11 11:02:59 +00:00
Hannes Payer
5e31f9ffdf [heap] Cleanup Heap SetUp/TearDown a bit.
Change-Id: Ieec4dccdf8a5241f439bde9fffc75f4f300930e1
Reviewed-on: https://chromium-review.googlesource.com/1089333
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53567}
2018-06-07 06:37:54 +00:00
Dan Elphick
4ce2adc326 [explicit isolates] Eliminate GetIsolate from transitions.cc
Removes all explicit calls to GetIsolate() in transitions.cc by passing
it through calling functions and implicit calls via the single argument
Handle constructor and handle function.

Unfortunately in the interests of making these changes vaguely
manageable, I've also pushed some new GetIsolates down into
objects-debug.cc, objects-printer.cc and objects.cc.

Bug: v8:7786
Change-Id: I1f98530dec6c004e17dc3336f3cef09fbb446bae
Reviewed-on: https://chromium-review.googlesource.com/1085451
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53518}
2018-06-05 11:00:43 +00:00
Marja Hölttä
80aaa87981 [in-place weak refs] Make the WeakArrayList API more generic.
(Pre-work for adding special-purpose data structures as subclasses.)

BUG=v8:7308

Change-Id: I82a5a96e18c3321e9d5b783642516ff869b45f27
Reviewed-on: https://chromium-review.googlesource.com/1084474
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53482}
2018-06-04 08:45:57 +00:00
Sebastien Marchand
df2419039c Fix a Jumbo breakage
see crbug.com/841460 , we recently hit some build issues when using
Goma + jumbo builds because of a conflict on the definition of CONST,
v8 defines it in globals.h and including windows.h also defines it. It
should be possible to fix this by adding a bunch of #undef CONST but it
seems a little bit hacky and might not always work (this could only fix
the problem temporary if the jumbo merge limit changes and cause some
include files to get included in a different order).

Renaming the v8 definition of CONST to kConst, this follows the
style guide guidelines: "there is no reason to change old code to use
constant-style names, unless the old names are actually causing a
compile-time problem"
(https://google.github.io/styleguide/cppguide.html#Enumerator_Names)

I also had to turn the PropertyConstness enum into an enum class to
avoid some conflicts (both PropertyConstness and VariableMode define
kConst).


Bug: chromium:841460
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I2b70b9095374e88a5ae364cc557b39f20a3ab60f
Reviewed-on: https://chromium-review.googlesource.com/1064197
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sébastien Marchand <sebmarchand@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53413}
2018-05-29 14:36:48 +00:00
Marja Hölttä
57cc9eaeb1 [in-place weak refs] Remove WeakFixedArray::Shrink.
WeakFixedArray::Shrink is fragile when not used properly (might invalidate GC
bookeeping (location of weak slots)).

BUG=v8:7308

Change-Id: Id84329e2a78907f5f0bfafae32fc2a71b77edbe7
Reviewed-on: https://chromium-review.googlesource.com/1076236
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53410}
2018-05-29 13:44:57 +00:00
Marja Hölttä
71e4c57319 [objects.h splitting] Move TYPE_CHECKERs back to objects-inl.h.
Moving them away was a mistake. Fixing this enables getting rid of a bunch of
includes.

BUG=v8:5402

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I5482eab4281c7450350f058fe0a04a6f375ea082
Reviewed-on: https://chromium-review.googlesource.com/1070188
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53328}
2018-05-24 11:44:07 +00:00
Marja Hölttä
85f7663a24 [reland] [in-place weak refs] Replace WeakCells in FeedbackVector.
Previous version: https://chromium-review.googlesource.com/1049606

This version is exactly the same as the previous; a bugfix
( https://chromium-review.googlesource.com/c/v8/v8/+/1069127 ) makes
relanding possible.

BUG=v8:7308
TBR=ishell@chromium.org, tebbi@chromium.org, leszeks@chromium.org, ulan@chromium.org

Change-Id: If7d455ceb6af0505a44b4fc52c52143e51cd115a
Reviewed-on: https://chromium-review.googlesource.com/1070027
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53296}
2018-05-23 07:43:27 +00:00
Hannes Payer
91c12223fb [heap] Remove anchor page from Space.
Replaces the anchor page circular doubly linked list
with a doubly linked list pointing to nullptr on its ends.

Fixes a memory leak when rewinding pages.

The large pages list will move to the new list implementation
in a follow-up CL.

Change-Id: I2933a5e222d4ca768f4b555c47ed0d7a7027aa73
Reviewed-on: https://chromium-review.googlesource.com/1060973
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53288}
2018-05-22 17:48:02 +00:00
Marja Hölttä
131866fb70 [in-place weak refs] Fix weak_objects_in_code handling.
If it points to a new space object which doesn't get scavenged, we need to drop
the reference.

BUG=v8:7308, v8:7768

Change-Id: I4485a7abcac3a26781811cc9bf134fd80e5f35b5
Reviewed-on: https://chromium-review.googlesource.com/1069127
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53287}
2018-05-22 16:46:22 +00:00
Jakob Kummerow
590a71551b [string] Fix stale pointer crash in String.p.split
ToDirectStringAssembler::PointerToData returns a raw pointer, which
is invalidated when GC moves the original string and hence must not
be accessed after any allocations. This fixes the bug introduced in
b4ebbc57a9 / r53260.

Bug: chromium:845060
Tbr: jgruber@chromium.org
Change-Id: I248d0dd2a275bf9308269b3f65d00c4c4c3d4292
Reviewed-on: https://chromium-review.googlesource.com/1068213
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53272}
2018-05-22 02:54:19 +00:00
Marja Hölttä
6c9e8cdc5b Revert "[in-place weak refs] Replace WeakCells in FeedbackVector."
This reverts commit c063e3f089.

Reason for revert: https://bugs.chromium.org/p/v8/issues/detail?id=7768

Original change's description:
> [in-place weak refs] Replace WeakCells in FeedbackVector.
> 
> BUG=v8:7308
> 
> Change-Id: I08b97f7f47e2d96e313b70a66cd890fedd46e9fb
> Reviewed-on: https://chromium-review.googlesource.com/1049606
> Commit-Queue: Marja Hölttä <marja@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53233}

TBR=ulan@chromium.org,marja@chromium.org,leszeks@chromium.org,tebbi@chromium.org,ishell@chromium.org

Change-Id: I68c068883884f9311ff166306245d0f21693bb6f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7308
Reviewed-on: https://chromium-review.googlesource.com/1065631
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53241}
2018-05-18 07:21:18 +00:00
Marja Hölttä
c063e3f089 [in-place weak refs] Replace WeakCells in FeedbackVector.
BUG=v8:7308

Change-Id: I08b97f7f47e2d96e313b70a66cd890fedd46e9fb
Reviewed-on: https://chromium-review.googlesource.com/1049606
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53233}
2018-05-17 13:20:30 +00:00
Gabriel Charette
8f6ffbfca7 [V8Platform] Remove deprecated Background threads APIs and make new APIs pure virtual.
Also fixup some implementations that were lagging behind per the lack of
pure virtual not having enforced everything yet.

Also fixed recently introduced
PredictablePlatform::CallDelayedOnWorkerThread() to ignore delayed tasks
after realizing the intent is to intercept worker tasks instead of
sending them to |platform_|.

Node.js migrated off these APIs @
https://github.com/v8/node/pull/69

R=ahaas@chromium.org, yangguo@chromium.org

Bug: chromium:817421
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I92171f213b5fc64ab1f21e8eec72738f5ce228bd
Reviewed-on: https://chromium-review.googlesource.com/1045310
Commit-Queue: Gabriel Charette <gab@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53223}
2018-05-16 23:27:02 +00:00
Wez
aca333123d [heap] Replace retained_size() with ExternalBackingStoreBytes().
ArrayBuffer memory allocated off-heap was previously tracked by a test-
only retained_size() field on each LocalArrayBufferTracker.

Changes in off-heap ArrayBuffer memory usage are now reported to the
Space with which the ArrayBuffer is associated, so that the value is
cheaply available to include in e.g. GC limit calculations, via a new
getter, ExternalBackingStoreBytes().

Changes to external ArrayBuffer backing-store allocations are tracked in
an AtomicNumber associated with each Space, to allow for ArrayBuffers
being concurrently moved or freed from multiple Pages in the same Space
during sweeps & compactions.

Bug: chromium:837583
Change-Id: I8b1b6addd5cd05533d8da55ca813e134bc36e181
Reviewed-on: https://chromium-review.googlesource.com/1052347
Commit-Queue: Wez <wez@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53192}
2018-05-15 21:04:42 +00:00
Dan Elphick
9d5aea8dc4 Reland "[heap] Move even more objects into RO_SPACE"
Moves all Oddballs, empty_feedback_metadata, lots of symbols and
immortal heap numbers and several other empty collection objects.

      RO_SPACE  NEW_SPACE  OLD_SPACE  CODE_SPACE  MAP_SPACE  LO_SPACE
old      31800          0     241976       24032        176         0
new      35080          0     238680       24032        176         0
diff     +3280                 -3296

Reland of https://chromium-review.googlesource.com/c/v8/v8/+/1025996,
without the empty_property_dictionary which is not read-only.

Bug: v8:7464
Change-Id: I84840d86eb3e5906ddb8b4c4e9e70bfec0cf78bc
Reviewed-on: https://chromium-review.googlesource.com/1049611
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53096}
2018-05-09 13:12:01 +00:00
Dan Elphick
f5fda7c83a Revert "[heap] Move even more objects into RO_SPACE"
This reverts commit b19d123fce.

Reason for revert: It breaks the more important change: https://chromium-review.googlesource.com/c/v8/v8/+/1042145
(Because it adds mutable objects to RO_SPACE).

Original change's description:
> [heap] Move even more objects into RO_SPACE
> 
> Moves all Oddballs, empty_feedback_metadata, lots of symbols and
> immortal heap numbers and several other empty collection objects.
> 
>       RO_SPACE  NEW_SPACE  OLD_SPACE  CODE_SPACE  MAP_SPACE  LO_SPACE
> old      31592          0     221160       33280        176         0
> new      35016          0     217736       33280        176         0
> diff     +3424                 -3424
> 
> Bug: v8:7464
> Change-Id: Ic99411bcbcb9c9a48b33c59dddb68359278fb0b3
> Reviewed-on: https://chromium-review.googlesource.com/1025996
> Commit-Queue: Dan Elphick <delphick@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53053}

TBR=hpayer@chromium.org,mlippautz@chromium.org,delphick@chromium.org

Change-Id: Ieb81f88fe348fcffb67c153c0b116670318814f5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7464
Reviewed-on: https://chromium-review.googlesource.com/1049555
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53056}
2018-05-08 10:02:27 +00:00
Dan Elphick
b19d123fce [heap] Move even more objects into RO_SPACE
Moves all Oddballs, empty_feedback_metadata, lots of symbols and
immortal heap numbers and several other empty collection objects.

      RO_SPACE  NEW_SPACE  OLD_SPACE  CODE_SPACE  MAP_SPACE  LO_SPACE
old      31592          0     221160       33280        176         0
new      35016          0     217736       33280        176         0
diff     +3424                 -3424

Bug: v8:7464
Change-Id: Ic99411bcbcb9c9a48b33c59dddb68359278fb0b3
Reviewed-on: https://chromium-review.googlesource.com/1025996
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53053}
2018-05-08 08:34:16 +00:00
Marja Hölttä
33157f3de7 [in-place weak refs] Replace the WeakCell(transition_map) in FeedbackVector.
- Make FeedbackVector backing store a WeakFixedArray.
- "feedback" is always strong but "extra" might be weak.
- Whenever the handler stored in FeedbackVector is a WeakCell to a transition
  Map, replace it with an in-place weak reference.
For a more detailed description of the changes, see the design doc

https://docs.google.com/document/d/1P8cIme2wKszdYt64ObAiuh6pXgLnrrn80Hpl1ejJbOU/edit#heading=h.ijx1oculrikp

BUG=v8:7308

Change-Id: I72c5cf6597ef24d4c22a1fe8e25b67ca196d4ec8
Reviewed-on: https://chromium-review.googlesource.com/1027855
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53051}
2018-05-08 08:08:26 +00:00
Hannes Payer
ea3e9de657 [heap] Introduce a CodeSpace class.
Bug: chromium:840329
Change-Id: If45a98c7f8a97f2482ac1bed7f7dda7d6e62b6b9
Reviewed-on: https://chromium-review.googlesource.com/1046658
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53025}
2018-05-07 14:55:08 +00:00
Wez
ca3e146ecb Rename PromotedSpaceSizeOfObjects() to OldGenerationSizeOfObjects().
The Promoted* prefix was used to refer both to the total number of old
generation objects, and to the delta of objects moved from the new to
old generations.

PromotedTotalSize() is also renamed, to reflect the actual calculation
it performs

Bug: chromium:837583
Change-Id: Id27a0661618257ef64eb469a83bb49c0e8ce6923
Reviewed-on: https://chromium-review.googlesource.com/1042314
Commit-Queue: Wez <wez@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52986}
2018-05-04 11:15:18 +00:00
jgruber
ab9e012426 Reland: [builtins] Patch self-references in constants table
Original CL: https://crrev.com/c/1018468

During code generation, we generate self-references (i.e. references to
the Code object currently being generated) as references to a temporary
handle. When the final Code object has been allocated, the handle's
location is fixed up and RelocInfo iteration fixes up all references
embedded in the generated code.

This adds support for this mechanism to the builtins constants table
builder. CodeObject() is now a new handle pointing to a dedicated
self-reference marker in order to distinguish between self-references
and references to undefined. In Factory::NewCode, we patch up
the constants table.

TBR=yangguo@chromium.org,mlippautz@chromium.org

Bug: v8:6666
Change-Id: I3fa422c57de99c9851dc7a86394a8387c7c2b397
Reviewed-on: https://chromium-review.googlesource.com/1039366
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52916}
2018-05-02 12:33:06 +00:00
Marja Hölttä
a9db2c74b5 [objects.h splitting] Move classes related to api callbacks.
BUG=v8:5402,v8:7570

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I56beb15109a3557ba514e8d17880b1a37a109031
Reviewed-on: https://chromium-review.googlesource.com/1032552
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52908}
2018-05-02 10:24:44 +00:00
Michael Achenbach
77d9089042 Revert "[builtins] Patch self-references in constants table"
This reverts commit 6379e2a464.

Reason for revert:
https://logs.chromium.org/v/?s=chromium%2Fbb%2Fclient.v8%2FV8_Win64%2F23855%2F%2B%2Frecipes%2Fsteps%2FCheck%2F0%2Flogs%2Fmkgrokdump%2F0

Original change's description:
> [builtins] Patch self-references in constants table
> 
> During code generation, we generate self-references (i.e. references to
> the Code object currently being generated) as references to a temporary
> handle. When the final Code object has been allocated, the handle's
> location is fixed up and RelocInfo iteration fixes up all references
> embedded in the generated code.
> 
> This adds support for this mechanism to the builtins constants table
> builder. CodeObject() is now a new handle pointing to a dedicated
> self-reference marker in order to distinguish between self-references
> and references to undefined. In Factory::NewCode, we patch up
> the constants table.
> 
> Bug: v8:6666
> Change-Id: If74ed91bb1c3b8abb20ff2f0a87d1bcd9a1b0511
> Reviewed-on: https://chromium-review.googlesource.com/1018468
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52854}

TBR=yangguo@chromium.org,mlippautz@chromium.org,jgruber@chromium.org

Change-Id: I8cf8c4b43f51285ea913c6c8fdd339bd9ea645df
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6666
Reviewed-on: https://chromium-review.googlesource.com/1033092
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52856}
2018-04-27 16:00:42 +00:00
jgruber
6379e2a464 [builtins] Patch self-references in constants table
During code generation, we generate self-references (i.e. references to
the Code object currently being generated) as references to a temporary
handle. When the final Code object has been allocated, the handle's
location is fixed up and RelocInfo iteration fixes up all references
embedded in the generated code.

This adds support for this mechanism to the builtins constants table
builder. CodeObject() is now a new handle pointing to a dedicated
self-reference marker in order to distinguish between self-references
and references to undefined. In Factory::NewCode, we patch up
the constants table.

Bug: v8:6666
Change-Id: If74ed91bb1c3b8abb20ff2f0a87d1bcd9a1b0511
Reviewed-on: https://chromium-review.googlesource.com/1018468
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52854}
2018-04-27 15:38:10 +00:00
Ulan Degenbaev
10fce9c80a [heap] Do eager unmapping in CollectAllAvailableGarbage.
The memory metric samples memory usage immediately after forcing GC via
LowMemoryNotification. This makes the metric sensitive to the unmapper
tasks timing.

This patch forces eager unmapping in CollectAllAvailableGarbage.

It also forces eager unmapping of non-regular chunks at the beginning
of Mark-Compact to avoid accumulation of non-regular chunks.

Bug: chromium:833291, chromium:826384
Change-Id: Iddf02cd4ab8613385d033899d29525fe6ee47fdd
Reviewed-on: https://chromium-review.googlesource.com/1017102
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52696}
2018-04-19 16:13:04 +00:00
Marja Hölttä
7560b33eba [in-place weak refs] Replace WeakCells in TransitionArray.
BUG=v8:7308

Change-Id: I1976cd7e542a0304f6e14744e634c62dd06a83f5
Reviewed-on: https://chromium-review.googlesource.com/1014090
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52672}
2018-04-18 14:08:47 +00:00
Marja Hölttä
d3a2819ee9 [in-place weak refs] Add WeakArrayList & replace Heap::retained_maps with it.
BUG=v8:7308

Change-Id: I5e9f371b1db5515b723d9a2864bf2038706e2015
Reviewed-on: https://chromium-review.googlesource.com/960032
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52613}
2018-04-16 08:36:34 +00:00
Jakob Kummerow
2459046c1d [ubsan] Change Address typedef to uintptr_t
The "Address" type is V8's general-purpose type for manipulating memory
addresses. Per the C++ spec, pointer arithmetic and pointer comparisons
are undefined behavior except within the same array; since we generally
don't operate within a C++ array, our general-purpose type shouldn't be
a pointer type.

Bug: v8:3770
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ib96016c24a0f18bcdba916dabd83e3f24a1b5779
Reviewed-on: https://chromium-review.googlesource.com/988657
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52601}
2018-04-14 01:25:28 +00:00
Matheus Marchini
ada64b58bf interpreter: make interpreted frames distinguishable in the native stack
Before Turbofan/Ignition it was possible to use external profilers to
sample running V8/Node.js processes and generate reports/FlameGraphs
from that. It's still possible to do so, but non-optimized JavaScript
functions appear in the stack as InterpreterEntryTrampoline. This commit
adds a runtime flag which makes interpreted frames visible on the
process' native stack as distinguishable functions, making the sampled
data gathered by external profilers such as Linux perf and DTrace more
useful.

R=bmeurer@google.com, franzih@google.com, jarin@google.com, yangguo@google.com

Bug: v8:7155
Change-Id: I3dc8876aa3cd9f1b9766624842a7cc354ccca415
Reviewed-on: https://chromium-review.googlesource.com/959081
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52533}
2018-04-10 19:33:55 +00:00
Ulan Degenbaev
2e8a98721c [heap] Make OutOfMemoryIneffectiveGC test more robust (the second try).
Change-Id: Ic10f599b6bb1c258082db61494a4e5c73220b00f
Reviewed-on: https://chromium-review.googlesource.com/1005255
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52524}
2018-04-10 14:07:31 +00:00
Marja Hölttä
3d222e13be [in-place weak refs] Fix weak slots in new space.
New space objects which die after scavenging might contain weak references.
IncrementalMarking::UpdateWeakReferencesAfterScavenge must drop the
corresponding slot.

This bug didn't surface before, since all weak slots are in the old space (but
this will change soon).

BUG=v8:7308

Change-Id: Ib1e507d4207e35547240dc0867ec7787b3f3103e
Reviewed-on: https://chromium-review.googlesource.com/1005000
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52519}
2018-04-10 11:50:33 +00:00
Ulan Degenbaev
81fa51c06f [heap] Make OutOfMemoryIneffectiveGC test more robust.
The checked condition now more precisely corresponds to the actual
ineffective GC detection heuristic.

Change-Id: I727932c76ff3183e7b038437eefba564c9778ff7
Reviewed-on: https://chromium-review.googlesource.com/997634
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52509}
2018-04-10 09:13:00 +00:00
Marja Hölttä
89f5bf7fde [heap] Remove unnecessary length reloading from ArrayList::Add.
The reloading was needed when GC would compact the Heap::retained_maps
array. But that's no longer true; the compaction is done in
Heap::AddRetainedMap, outside GC. So it's not possible that the length would
change because of an allocation.

(Pre-cleanup for in-place weak ref work.)

BUG=v8:7308

Change-Id: I18554353014865992f9151002cc4097fb986faf1
Reviewed-on: https://chromium-review.googlesource.com/1002775
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52506}
2018-04-10 08:36:17 +00:00
Jakob Kummerow
cfc6a5c2c6 Reland: [cleanup] Refactor the Factory
There is no good reason to have the meat of most objects' initialization
logic in heap.cc, all wrapped by the CALL_HEAP_FUNCTION macro. Instead,
this CL changes the protocol between Heap and Factory to be AllocateRaw,
and all object initialization work after (possibly retried) successful
raw allocation happens in the Factory.

This saves about 20KB of binary size on x64.

Original review: https://chromium-review.googlesource.com/c/v8/v8/+/959533
Originally landed as r52416 / f9a2e24bbc

Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Id072cbe6b3ed30afd339c7e502844b99ca12a647
Reviewed-on: https://chromium-review.googlesource.com/1000540
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52492}
2018-04-09 19:52:22 +00:00
Leszek Swirski
6bd1d3c280 [objects] Merge SFI outer_scope_info and feedback_metadata
Merge the outer_scope_info and feedback_metadata fields on
SharedFunctionInfo. outer_scope_info is only used during parsing,
and feedback_metadata is only available after compilation, so the
two never exist at the same time. Thus, they can share a field slot.

The exception is un-compiling and re-compiling a function, where we
need the outer_scope_info again. Fortunately, the outer_scope_info
can be re-calculated from the SFI's scope_info.

Bug: v8:7606
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I6b97fefe859e89df75ad870da4a0bfa4b869772a
Reviewed-on: https://chromium-review.googlesource.com/992432
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52454}
2018-04-06 15:06:04 +00:00
Michael Achenbach
503e07c3ef Revert "[cleanup] Refactor the Factory"
This reverts commit f9a2e24bbc.

Reason for revert: gc stress failures not all fixed by follow up.

Original change's description:
> [cleanup] Refactor the Factory
> 
> There is no good reason to have the meat of most objects' initialization
> logic in heap.cc, all wrapped by the CALL_HEAP_FUNCTION macro. Instead,
> this CL changes the protocol between Heap and Factory to be AllocateRaw,
> and all object initialization work after (possibly retried) successful
> raw allocation happens in the Factory.
> 
> This saves about 20KB of binary size on x64.
> 
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: Icbfdc4266d7be8b48d2fe085f03411743dc6a0ca
> Reviewed-on: https://chromium-review.googlesource.com/959533
> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52416}

TBR=jkummerow@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,hpayer@chromium.org

Change-Id: Idbbc53478742f3e9525eee83342afc6aedae122f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/999414
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52420}
2018-04-06 07:23:19 +00:00
Jakob Kummerow
f9a2e24bbc [cleanup] Refactor the Factory
There is no good reason to have the meat of most objects' initialization
logic in heap.cc, all wrapped by the CALL_HEAP_FUNCTION macro. Instead,
this CL changes the protocol between Heap and Factory to be AllocateRaw,
and all object initialization work after (possibly retried) successful
raw allocation happens in the Factory.

This saves about 20KB of binary size on x64.

Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Icbfdc4266d7be8b48d2fe085f03411743dc6a0ca
Reviewed-on: https://chromium-review.googlesource.com/959533
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52416}
2018-04-06 00:23:46 +00:00
Peter Marshall
b158bfdc2f Reland "[runtime] Remove the construct_stub field of the SFI"
This is a reland of 63ecddc814

Original change's description:
> [runtime] Remove the construct_stub field of the SFI
>
> Don't dispatch based on the construct_stub field anymore. Rather than
> read it out and jump to the construct stub, we can switch on the
> builtin_id.
>
> Builtins will always have builtin_id as a Smi, so this signals we need
> to jump to JSBuiltinsConstructStub. The only exception is for uncompiled
> functions, which will have kCompileLazy as the builtin_id, but need to
> jump to the generic stub instead.
>
> API function calls will have a FunctionTemplateInfo in the SFI
> function_data field, and need to go to the builtins stub as well.
>
> The final case is everything else, which should go to the generic stub.
>
> Bug: v8:7503
> Change-Id: I14790a5f9784dc0d940bf10a05f5310026e1d482
> Reviewed-on: https://chromium-review.googlesource.com/980941
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52345}

TBR=bmeurer@chromium.org

Bug: v8:7503
Change-Id: Ie46bfb0af173ad7ac8cbdfeed1865e60f3f413f7
Reviewed-on: https://chromium-review.googlesource.com/997712
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52389}
2018-04-05 12:06:03 +00:00
Marja Hölttä
723f5c88b5 [heap] Remove fragile test.
test-heap/TransitionsArraySimpleToFull was relying on an allocation
happening (and GC being triggered) right at the start of
TransitionsAccessor::Insert. That allocation would put the TransitionsAccessor
back to the kUninitialized state. If there's no allocation at that point of the
program logic, the test will fail, since the TransitionsAccessor will be go to
the kFullTransitionArray state.

(Needed for the in-place weak ref work, which will remove the allocation at that point.)

BUG=v8:7308

Change-Id: Id3985e107d86440fe05daf5f3f29c84d028df929
Reviewed-on: https://chromium-review.googlesource.com/995476
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52374}
2018-04-05 05:58:34 +00:00
Michael Achenbach
f49a1a67f5 Revert "[runtime] Remove the construct_stub field of the SFI"
This reverts commit 63ecddc814.

Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20-%20internal%20snapshot/builds/14773

Original change's description:
> [runtime] Remove the construct_stub field of the SFI
> 
> Don't dispatch based on the construct_stub field anymore. Rather than
> read it out and jump to the construct stub, we can switch on the
> builtin_id.
> 
> Builtins will always have builtin_id as a Smi, so this signals we need
> to jump to JSBuiltinsConstructStub. The only exception is for uncompiled
> functions, which will have kCompileLazy as the builtin_id, but need to
> jump to the generic stub instead.
> 
> API function calls will have a FunctionTemplateInfo in the SFI
> function_data field, and need to go to the builtins stub as well.
> 
> The final case is everything else, which should go to the generic stub.
> 
> Bug: v8:7503
> Change-Id: I14790a5f9784dc0d940bf10a05f5310026e1d482
> Reviewed-on: https://chromium-review.googlesource.com/980941
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52345}

TBR=petermarshall@chromium.org,leszeks@chromium.org,bmeurer@chromium.org

Change-Id: I2031913ab5a12018ad932f920792aa1f6faa5e22
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7503
Reviewed-on: https://chromium-review.googlesource.com/995293
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52346}
2018-04-04 10:34:10 +00:00
Peter Marshall
63ecddc814 [runtime] Remove the construct_stub field of the SFI
Don't dispatch based on the construct_stub field anymore. Rather than
read it out and jump to the construct stub, we can switch on the
builtin_id.

Builtins will always have builtin_id as a Smi, so this signals we need
to jump to JSBuiltinsConstructStub. The only exception is for uncompiled
functions, which will have kCompileLazy as the builtin_id, but need to
jump to the generic stub instead.

API function calls will have a FunctionTemplateInfo in the SFI
function_data field, and need to go to the builtins stub as well.

The final case is everything else, which should go to the generic stub.

Bug: v8:7503
Change-Id: I14790a5f9784dc0d940bf10a05f5310026e1d482
Reviewed-on: https://chromium-review.googlesource.com/980941
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52345}
2018-04-04 10:12:29 +00:00
Ulan Degenbaev
cf52c1018d [heap] Optimize for memory usage near OOM.
This patch enables ShouldOptimizeForMemoryUsage if the old generation
size is within 1/8th of the max old generation size.

This patch also passes the reduce-memory flag to incremental marking
whenever ShouldOptimizeForMemoryUsage is enabled.

Bug: chromium:824214
Change-Id: I5cfc0566ca0e23dfa1b8c0439a4e67424ddc852d
Reviewed-on: https://chromium-review.googlesource.com/973524
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52333}
2018-04-03 18:12:59 +00:00