.. similar to how it is applied in the interpreter. We reserve a stack
slot for the backtrack count, increment it on each backtrack, and fail
if the limit is hit.

Bug: v8:9695
Change-Id: I835888c612d6c8bfa2f34e73ab8c8241dcabc6ed
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864938Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64426}

This is a reland of 0347f00a

Original change's description:
> Refactor platform tests to avoid deprecated API
>
> The old tasks API is deprecated and we want to remove it in 8.0.
> Thus, this CL refactors the platform tests to use the new
> TaskRunner-based API, and removes redundant tests.
>
> R=ahaas@chromium.org
>
> Bug: v8:9810
> Change-Id: Ie53c90184639e77b3247228059fd88290b233e0c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1868619
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#64412}

Bug: v8:9810
Cq-Include-Trybots: luci.v8.try:v8_linux64_msan_rel
Change-Id: I0f66791828e0f605a67f9af575dbead35e8feb9d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871917Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64425}

This reverts commit c48096d4.

Reason for revert: Flaky bot failures (https://bugs.chromium.org/p/v8/issues/detail?id=9744#c9)

Original change's description:
> Reland "[runtime] Remove extension slots from context objects"
> 
> This is a reland of c07c02e1
> 
> Original change's description:
> > [runtime] Remove extension slots from context objects
> >
> > Context objects have an extension slot, which contains further
> > additional data that depends on the type of the context.
> >
> > This CL removes the extension slot from contexts that don't need
> > them, hence reducing memory.
> >
> > The following contexts will still have an extension slot: native,
> > module, await, block and with contexts. See objects/contexts.h for
> > what the slot is used for.
> > The following contexts will not have an extension slot anymore (they
> > were not used before): script, catch and builtin contexts.
> > Eval and function contexts only have the extension slot if they
> > contain a sloppy eval.
> >
> > Bug: v8:9744
> > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191
> > Commit-Queue: Victor Gomes <victorgomes@google.com>
> > Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> > Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> > Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> > Auto-Submit: Victor Gomes <victorgomes@google.com>
> > Cr-Commit-Position: refs/heads/master@{#64372}
> 
> TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org
> 
> Bug: v8:9744
> Change-Id: I0749cc2d8f59940c25841736634a70047116d647
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869192
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Auto-Submit: Victor Gomes <victorgomes@google.com>
> Cr-Commit-Position: refs/heads/master@{#64380}

TBR=ulan@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,leszeks@chromium.org,verwaest@chromium.org,victorgomes@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: v8:9744
Change-Id: Ia58067b41f1eb5880a52b36ead754d7190ff7f6f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871922Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64424}

The MOVE_ONLY_NO_DEFAULT_CONSTRUCTOR macro defines a defaulted move
constructor and move-assignment operator. The {std::unique_ptr} on the
other hand needs the contained type to be complete when instantiating
the move assignment operator. Hence, this fails e.g. on MSVC, see
https://github.com/nodejs/node/pull/30020#issuecomment-544485991.

It turns out that we never actually move the interpreter, so we can
just replace the MOVE_ONLY_NO_DEFAULT_CONSTRUCTOR by
DISALLOW_COPY_AND_ASSIGN.

R=ahaas@chromium.org

Change-Id: Iba7d30243510ed9554be62b0c4c8e6f47f0c3307
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871921Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64423}

Before this change, the activeElement used to be the body and not
multiview. Then, the EventListener wasn't triggering.

Bug: v8:7327
Change-Id: I9782159ffd510c9a7afd83695f20ede9e774ac20
Notry: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1868624
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64422}

Since the resizers (the handles used to resize the panes) were
getting bigger when selected, they obscured part of the scrollbar
making the scrollbar too hard to select.

Also, when they were snapped, the right resizer totally obscured
the scrollbar.

Bug: v8:7327
Change-Id: I04f3df00181df2265890ef54706091b3bc36f23e
Notry: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869191Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64421}

This is a reland of ad9bd3a0

Reland reason: Probably not the cause of the TSAN failures

Original change's description:
> [ptr-compr][CSA] Enable the DecompressionOptimizer phase in CSA
>
> Also update the MachineGraphVerifier to take into account the
> possibility of the Store receiving a Compressed representation as well.
>
> Bug: v8:7703
> Change-Id: I6d6e28b980151af6296000cfe6f67a3a037b029c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1859627
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#64410}

TBR=tebbi@chromium.org, jgruber@chromium.org

Bug: v8:7703
Change-Id: Ic8181d0288a8504e611437601f6b34e472fcac47
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871919Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64420}

Before we can remove the deprecated methods, we need to provide default
implementations for them. Then, we can remove all overrides in
embedders, and finally remove the methods from v8.

R=ulan@chromium.org
CC=ahaas@chromium.org

Bug: v8:9810
Change-Id: If9286dc8ba441c226c9a1d524832ff203ac4bce6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871915Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64419}

On Windows with MSVC, the current code triggers a fatal error C1017
(invalid integer constant expression).

Change-Id: I41c371a1d7909737052c03c830bb62c41154a192
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871918
Commit-Queue: Michaël Zasso <mic.besace@gmail.com>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64418}

V8 uses a backtracking regexp engine, which has the caveat that some
regexp patterns can have exponential runtime behavior when excessive
backtracking is involved.

Especially when regexp patterns are user-controlled, it would be useful
to be able to set an upper limit for a single regexp execution. This CL
takes an initial step in that direction by adding a backtracking limit
(intended to approximate execution time):

- The limit is stored in the JSRegExp's data array.
- A limit can currently only be set through the %NewRegExpWithLimit
runtime function.
- The limit is applied during interpreter execution. When exceeded, the
interpreter stops execution and returns FAILURE (even if continued
execution would at some later point have resulted in SUCCESS).

In follow-up CLs, this mechanism will be extended to work in jitted
regexp code, and exposed through the V8 API.

Bug: v8:9695
Change-Id: Iadb5c100052f4a63b26f1ec49cf97c6713a66b9b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864934
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64417}

Port afbbfcbe

R=zhin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I5c2dc6f4ae185259f7b6fc23265c9eff495a599d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869452Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#64416}

This reverts commit ad9bd3a0.

Reason for revert: Speculative revert for TSAN failures (https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN/28816)

Original change's description:
> [ptr-compr][CSA] Enable the DecompressionOptimizer phase in CSA
> 
> Also update the MachineGraphVerifier to take into account the
> possibility of the Store receiving a Compressed representation as well.
> 
> Bug: v8:7703
> Change-Id: I6d6e28b980151af6296000cfe6f67a3a037b029c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1859627
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#64410}

TBR=jgruber@chromium.org,tebbi@chromium.org,solanes@chromium.org

Change-Id: I805593d9b49503a20348a4b059049ed24345cf8e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7703
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871914Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64415}

This reverts commit 0347f00a.

Reason for revert: MSAN failures (https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/29288)

Original change's description:
> Refactor platform tests to avoid deprecated API
> 
> The old tasks API is deprecated and we want to remove it in 8.0.
> Thus, this CL refactors the platform tests to use the new
> TaskRunner-based API, and removes redundant tests.
> 
> R=​ahaas@chromium.org
> 
> Bug: v8:9810
> Change-Id: Ie53c90184639e77b3247228059fd88290b233e0c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1868619
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#64412}

TBR=ahaas@chromium.org,clemensb@chromium.org

Change-Id: I1b240df992425f25a2a4a9d33d27f6262d91c004
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9810
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1871913Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64414}

We still set a lot of macros depending on specific gcc versions. All
these old versions are unsupported by now anyways, so we can also just
define these macros as 1.
If this CL sticks for a while, we can start actually cleaning up all
code relying on these macros, as most of them should be 1 now on all
platforms.

R=ulan@chromium.org

Bug: v8:9810
Change-Id: I2f9c55170091f8c263deeddfb7ff89e5b2a0bb12
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1862564Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64413}

The old tasks API is deprecated and we want to remove it in 8.0.
Thus, this CL refactors the platform tests to use the new
TaskRunner-based API, and removes redundant tests.

R=ahaas@chromium.org

Bug: v8:9810
Change-Id: Ie53c90184639e77b3247228059fd88290b233e0c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1868619Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64412}

It was unused and the last commit was a long time ago.

NOPRESUBMIT=true

Change-Id: I5c4992cbc2e9977549787e21e4f5dac284291c58
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863938Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64411}

Also update the MachineGraphVerifier to take into account the
possibility of the Store receiving a Compressed representation as well.

Bug: v8:7703
Change-Id: I6d6e28b980151af6296000cfe6f67a3a037b029c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1859627
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64410}

TurboFan can normally inline an arrow function closure callback like:

[1, 2, 3].map(x => x * x);

The serializer has information to support this in the form of
FunctionBlueprint Hints, though it's not exploiting them. This CL
remedies that.

Bug: v8:7790
Change-Id: I8fc10f04ffc9bd2ea03cd761e8a5a41258000c76
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863939Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64409}

Bug: v8:9871
Change-Id: Ib2042002c1eba72b81fcd15811a627b13e7e3281
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1866770Reviewed-by: Tamer Tas <tmrts@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64408}

This reverts commit dfd9ceb9.

Reason for revert: Regressions https://chromeperf.appspot.com/group_report?rev=64356 https://crbug.com/1015749

Original change's description:
> [regexp] Clone match info for match indices.
>
> The current behavior for generating match indices simply stashes a
> pointer to the match info and then constructs the indices lazily.
> However, it turns out the match info object used to create the result
> object is the regexp_last_match_info living on native context, and thus
> it can change between the creation of the result object and the generation
> of indices. This cl clones the match info which will be safer.
>
> Bug: v8:9548
> Change-Id: Ia6f26f88fbc22fd09671bf4c579d39a1510b552d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864585
> Commit-Queue: Joshua Litt <joshualitt@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#64356}

TBR=jgruber@chromium.org,joshualitt@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: v8:9548, chromium:1015749
Change-Id: I9c30b8fb459cf2aa89d920bf061614441250844d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1870236
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64407}

Port 7d09b270

Original Commit Message:

    It turns out that because we are *subtracting* from fp, we need to
    *subtract less* to get a higher address. Who knew.

R=xwafish@gmail.com, clemensb@chromium.org

Change-Id: I1ddb5e15ef7fab2f198aebf07a5ce607add4c3c4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1868559
Auto-Submit: Mu Tao <pamilty@gmail.com>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64406}

R=bmeurer@chromium.org

Change-Id: Ia76369623c767fbbc249d1d77643d63062f99487
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1870231Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Auto-Submit: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64405}

Bug: v8:9856
Change-Id: Ia7dd11c3e603b7880a90fb89087d3118409b432f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864650Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64404}

When using promise hooks we can actually end up in capturing stack trace
with an async generator on the stack whose queue is empty, and we need
to gracefully handle that case as well.

Fixed: chromium:1015945
Change-Id: Ia459e7444b373ecab01ca6900a781fd8b4021d1a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1870230
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64403}

Change-Id: Ia450876e085b8d4aec5df6be6d17a9cfa557980a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1866884Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64402}

This is a reland of 97ed8b27

Original change's description:
> [regexp] Guarantee an allocated regexp stack
> 
> The regexp stack is used during execution of jitted regexp matcher
> code.  Previously, the stack was initially not present / nullptr, and
> we had to explicitly check for this condition and bail out in builtin
> code.
> 
> This CL changes behavior to guarantee a present stack by adding a
> statically-allocated area that is used whenever no
> dynamically-allocated stack exists.
> 
> Change-Id: I52934425ae72cf0e5d13fab2b9d63d37ca76fcf3
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1852126
> Auto-Submit: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#64326}

Change-Id: If345c09bdbfc8dc6b63f016c3f10ffda811bbb6d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1866771
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64401}

NOTRY=true
TBR=tmrts@chromium.org

Change-Id: I44bff77691130b39b4033127dc837ef9d27a740c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1870232
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64400}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/8823f36..7136ae1

TBR=machenbach@chromium.org,tmrts@chromium.org

Change-Id: Iababa920839bb6578233ad5079dc4ebed0bfeabd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869859Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#64399}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/193283f..8823f36

TBR=machenbach@chromium.org,tmrts@chromium.org

Change-Id: I76142e9c0d9ed62e641c4c7ec00377646cefca3b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869857Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#64398}

Local testing shows that this switch for small counts (up to size 16)
is significantly faster than the default {std::copy_n} (by up to 20%,
e.g. for the "join-int" js perf test). It's also faster than just a
loop covering all sizes up to 16.

R=leszeks@chromium.org
CC=jkummerow@chromium.org

Bug: chromium:1006157
Change-Id: I4d179f064704261fa18f453c23c04ee0b351e942
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864831Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64397}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/6924ab4..193283f

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/c98b1ee..a5c8651

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/fcde3ba..acf922c

TBR=machenbach@chromium.org,tmrts@chromium.org

Change-Id: Iaae325a8d6058921c80093f3c9cf5d3cbe551b44
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869854Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#64396}

Change-Id: I335b31d07445d6e6f3739481ac8928b38793e233
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869923Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64395}

Change-Id: I1c430a2f57578767c216121384cd4e1873a80e86
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869919Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64394}

Port a0b95232

R=zhin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I41e950820d526f1471505ec06c223459a5adf2ea
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1867972Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#64393}

New Revision: bbc72612409377752c8fd2e7a63a1a5947b7dc4b

Change-Id: I625c056b35ffa0658a9063da52ec17178db213a7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1866967Reviewed-by: Alexei Filippov <alph@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64392}

It was using "data", should be using "current".

Was:

0x16e1493c294c   90c  660f3a0fe905   palignr xmm5,[rdi],0x1
0x16e1493c2952   912  660f3a0f6a04   palignr xmm5,[rdi],0x0

Now:

0x2faab74294c   90c  660f3a0fe905   palignr xmm5,xmm1,0x1
0x2faab742952   912  660f3a0f6a0405 palignr xmm5,[rdx+0x4],0x1

Change-Id: I061096889bb26982b27656bd27ac3c9fb6402368
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1869079Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64391}

Bug: v8:9561
Change-Id: Ic17e0861cee5b1613370f6d2a1801a0e1744a3f5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1868823Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64390}

Bug: v8:9813
Change-Id: Iff69b35ec7ea96f0e63610a93c01557429792c59
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1866883Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64389}

- Move foward deprecations in EmbedderHeapTracer
- Deprecate SetFinalizationCallback in v8::TraceReference

Change-Id: Ic68402096ce8f5fe08521253836d3b19d73326ae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863941
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64388}

https://chromium.googlesource.com/external/github.com/tc39/test262/+log/d49777de..21195de94

21195de Inital commit for Intl.DisplayNames tests (#2404)
4b6efea Add more tests for DateTimeFormat.hourCycle/hour12. (#2385)
146ef7d add features: [Intl.DateTimeFormat-formatRange] (#2403)
98883a5 Use canonical format for the description in the metatags (#2401)
f25ae22 Add cases for matching paren covered logical expressions
f0f4cd6 Improve metadata
c7a158e Add feature
ec41c1a Add tests for Nullish Coalesce Expression
6b66b82 Cleanup compareArray and deepEqual assertions, remove assert._formatValue
4182972 Merge pull request #2396 from leobalter/2381/yaml
59d1af9 [matchAll] pass a global regex (#2399)
2b48ec7 More yaml and whitespace fixes
917e6f7 Yaml consistency


Bug: v8:7834, v8:9875, v8:8703
Change-Id: I03fdce94d524ec0ffc270512fe920acf9b86e781
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1867791Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64387}