This reverts commit 1fdf6405.

Reason for revert: Alters behavior on linux; we need to investigate

Original change's description:
> Make format torque tools work on win
> 
> Reformatting Torque file is required to upload a CL
> but it can only work on POSIX
> 
> Change-Id: I51283e3f6b29abf492be7efb5b8f10454d09fb37
> Reviewed-on: https://chromium-review.googlesource.com/c/1475919
> Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> Commit-Queue: Michael Stanton <mvstanton@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59719}

TBR=mvstanton@chromium.org,bmsdave@gmail.com,duongn@microsoft.com

Change-Id: I8845fa1d1ddf5ce841a84ef59c9572673e4a2510
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/1478199Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59736}

This reverts commit 0052f12a.

Reason for revert: Fix available

Original change's description:
> [torque] Temporarily disable torque format check to pass presubmit
> 
> Revert this once the bug is fixed.
> 
> Change-Id: I28490ecc9290b5c1f09e1ee8bcd8b600f79f017d
> Bug: v8:8873
> Notry: true
> Notreechecks: true
> Reviewed-on: https://chromium-review.googlesource.com/c/1477747
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59720}

TBR=machenbach@chromium.org,sigurds@chromium.org,tebbi@chromium.org

Change-Id: I1a51ee93d7adbd1f14103da68e64548141163706
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8873
Reviewed-on: https://chromium-review.googlesource.com/c/1478198Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59735}

This reverts commit 91213b5c.

Reason for revert: Fix available

Original change's description:
> [torque] Temporarily remove torque format check to pass presubmit
> 
> Revert this once the bug is fixed.
> 
> TBR=machenbach@chromium.org
> 
> Change-Id: I32c9ef41b968e37b6de9eddb7e4e27c1d60c87c8
> Bug: v8:8873
> Notry: true
> Notreechecks: true
> Reviewed-on: https://chromium-review.googlesource.com/c/1477749
> Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59721}

TBR=sigurds@chromium.org

Change-Id: Icf4454ca9ed1d276fe0a0a3fa0bba3553a6b8a87
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8873
Reviewed-on: https://chromium-review.googlesource.com/c/1478197Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59734}

Bug: v8:7793
Change-Id: I41382177f44b090e51b3a61f29dc9f54bdfad72e
Reviewed-on: https://chromium-review.googlesource.com/c/1475534
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59733}

This reverts commit 5a161ce3.

Reason for revert: Fix is available

Original change's description:
> [torque] Temporarily remove torque format check to pass presubmit
> 
> .. also from v8_presubmit.py
> 
> Revert this once the bug is fixed.
> 
> TBR=machenbach@chromium.org
> 
> Change-Id: I82f443e1d6bea4c4c43d50631f559b3aa25f8410
> Bug: v8:8873
> Notry: true
> Notreechecks: true
> Reviewed-on: https://chromium-review.googlesource.com/c/1478690
> Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59722}

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

Change-Id: I9b8f01e9563cc53d34c0835872fb6fe8b5ddb240
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8873
Reviewed-on: https://chromium-review.googlesource.com/c/1478195Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59732}

Bug: chromium:932392
Change-Id: Icf5690585303a7f61421bdfe7729823c98950d13
Reviewed-on: https://chromium-review.googlesource.com/c/1478192Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59731}

This is a reland of 6202c445.
Moved skipped test from 'variant == jitless' to
'lite_mode or variant == jitless'.

Original change's description:
> [inspector] Add wasm profiling test
>
> This adds a first simple test to check that CPU profiles contain wasm
> function names.
>
> R=herhut@chromium.org, kozyatinskiy@chromium.org
>
> Bug: v8:8783
> Change-Id: I26b1fd2b7ec555c073d80a464ee8a799b017b07a
> Reviewed-on: https://chromium-review.googlesource.com/c/1454597
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Stephan Herhut <herhut@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59703}

TBR=herhut@chromium.org

Bug: v8:8783
Change-Id: I4f68db86bf1caa4f0d68dd4fa227ded25bf5145a
Reviewed-on: https://chromium-review.googlesource.com/c/1477678Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59730}

This introduces a new {base::SharedMutex}, which mimics
{std::shared_mutex}, available in C++17.
It is being used for synchronizing the WebAssembly background compile
tasks. This removes a lot of unnecessary contention, leading to
synchronization of background tasks that should be able to run in
parallel ideally.
Locally, this reduces Liftoff compilation time by more than 20 percent.

R=mstarzinger@chromium.org, mlippautz@chromium.org

Bug: chromium:924956
Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_rel
Change-Id: I8c522faf385149bfe2cf00d777a7942c537f9cd2
Reviewed-on: https://chromium-review.googlesource.com/c/1477731
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59729}

This is a reland of c9ef0405

Original change's description:
> [builtins]: Optimize CreateTypedArray to use element size log 2 for calculations.
>
> TypedArrayElementsInfo now represents an element's size as a log 2 and typed as
> uintptr.  This simplifies and speeds up (avoids possible HeapNumber allocations) a
> number of calculations:
>
>   - Number of Elements (length) -> Byte Length - is now a WordShl
>   - Byte Length -> Number of Elements (length) - is now a WordShr
>   - Testing alignment (byte offset or length)  - is now a WordAnd
>
> These element/byte length related calculations are encapsulated in
> TypedArrayElementsInfo as struct methods.
>
> This reduces the size of CreateTypedArray by 2.125 KB (24%) on Mac x64.release:
>   - Before: 9,088
>   - After:  6,896
>
> This improves the performance of the following microbencmarks
>   - TypedArrays-ConstructWithBuffer: ~87%
>   - TypedArrays-SubarrayNoSpecies:   ~28%
>
> Bug: v8:7161
> Change-Id: I2239fd0e0af9d3ad55cd52318088d3c7c913ae44
> Reviewed-on: https://chromium-review.googlesource.com/c/1456299
> Commit-Queue: Peter Wong <peter.wm.wong@gmail.com>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Simon Zünd <szuend@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59531}

Bug: v8:7161, chromium:932034
Change-Id: I5c3dc34c549234417f95b404e7d49b2fd496fa69
Reviewed-on: https://chromium-review.googlesource.com/c/1476306
Commit-Queue: Peter Wong <peter.wm.wong@gmail.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59728}

Since these Recheck() calls are usually combined with a bailout,
doing them at the end of loops means we have to increment one or
more bailout variables, which is hard to understand.

Change-Id: I595ea592f31762da5abd85bfa7556eb39e3c9430
Reviewed-on: https://chromium-review.googlesource.com/c/1478694Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59727}

The ReplacementStringBuilder had a tricky API that required manually
growing the backing store if needed. This saves a few int additions
and comparisons, but is probably not worth the potential for errors.
This CL changes to automatic growth that is invisible to the user.

Bug: chromium:933521
Change-Id: I7d2404a48fe47ccce9af919910c06a9eca598120
Reviewed-on: https://chromium-review.googlesource.com/c/1477748Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59726}

This reverts commit f8962ae1.

Reason for revert: breaks Arm bots, e.g. https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Arm/9655, task: https://chromium-swarm.appspot.com/task?d=true&id=431dfa503db16d10

Original change's description:
> Preparing v8 to use with python3 /test
> 
> There are now less that 400 days until the end of life
> of Python 2(aka _legacy_ Python) https://pythonclock.org/ .
> The code compatibility check for python2 and python3
> used the following tools: futurize, flake8
> You can see the reports here: https://travis-ci.com/bmsdave/v8/builds
> 
> This CL was uploaded by git cl split.
> 
> Bug: v8:8594
> Change-Id: Idbf467daf629a4e808345a6a88036c2a3f259138
> Reviewed-on: https://chromium-review.googlesource.com/c/1470121
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59679}

TBR=machenbach@chromium.org,sergiyb@chromium.org,herhut@chromium.org,bmsdave@gmail.com

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

Bug: v8:8594
Change-Id: I17a0a7b203fa2c0ab0f965240ee1415b7513e1cf
Reviewed-on: https://chromium-review.googlesource.com/c/1478692Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59725}

On Intel processors it seems to be generally beneficial to use pushes
instead of explicit stack massaging to allocate the function callback
arguments on the stack for the API callback.

This yields a 5% improvement on the API callback performance, and
recovers an earlier regression (which was probably due to changing this
code to use movs instead of pushes).

Bug: v8:8820, v8:8848, chromium:913553
Change-Id: I3a82cf9bd49498728cae579dd39a9a3cfef37cea
Reviewed-on: https://chromium-review.googlesource.com/c/1477745Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59724}

NOTRY=true

Bug: v8:3770
Change-Id: I2357aae4f6be8158cb5fd75e467aa943f4929abe
Reviewed-on: https://chromium-review.googlesource.com/c/1477281Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59723}

.. also from v8_presubmit.py

Revert this once the bug is fixed.

TBR=machenbach@chromium.org

Change-Id: I82f443e1d6bea4c4c43d50631f559b3aa25f8410
Bug: v8:8873
Notry: true
Notreechecks: true
Reviewed-on: https://chromium-review.googlesource.com/c/1478690Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59722}

Revert this once the bug is fixed.

TBR=machenbach@chromium.org

Change-Id: I32c9ef41b968e37b6de9eddb7e4e27c1d60c87c8
Bug: v8:8873
Notry: true
Notreechecks: true
Reviewed-on: https://chromium-review.googlesource.com/c/1477749Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59721}

Revert this once the bug is fixed.

Change-Id: I28490ecc9290b5c1f09e1ee8bcd8b600f79f017d
Bug: v8:8873
Notry: true
Notreechecks: true
Reviewed-on: https://chromium-review.googlesource.com/c/1477747
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59720}

Reformatting Torque file is required to upload a CL
but it can only work on POSIX

Change-Id: I51283e3f6b29abf492be7efb5b8f10454d09fb37
Reviewed-on: https://chromium-review.googlesource.com/c/1475919Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59719}

... as it can be expensive and there are no users of it anymore (we
just read the information directly from ModuleInfo instead).

Bug: v8:8847
Change-Id: I30a3bec186fbdea3821979e642b27b3b827309ce
Reviewed-on: https://chromium-review.googlesource.com/c/1477220Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59718}

R=tebbi@chromium.org

Bug: v8:7793
Change-Id: I948b77a50cead2d031d007d06e9a4892a55b2408
Reviewed-on: https://chromium-review.googlesource.com/c/1477223Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59717}

This is a reland of 2d914c4c

Original change's description:
> [wasm] add wasm atomic wait callback test
>
> Bug=v8:8075
>
> Change-Id: I0c66acd329d0d6b67d34ad31c8ca401db38e0e5b
> Reviewed-on: https://chromium-review.googlesource.com/c/1377995
> Reviewed-by: Ben Smith <binji@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59709}

Change-Id: Ic95a99f73844a7243a9c4eaadecda8c1c6686798
Reviewed-on: https://chromium-review.googlesource.com/c/1478217Reviewed-by: Ben Smith <binji@chromium.org>
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59716}

This is a reland of 1a3a2bc3,
fixed an infinite loop in Map::TryUpdateSlow and added
a relevant test.

Original change's description:
> Fix accessor update of non-extensible maps.
>
> When installing getter/setter of non-extensible map with existing
> setter/getter of the same name, we introduce a new transition
> (so we have two transitions with the same name!). This triggers
> an assertion in map updater.
>
> This fix carefully checks that on the back-pointer path from
> non-extensible map to the extensible map there are only
> integrity level transitions. Otherwise, we just bail out.
>
> Bug: chromium:932953
> Change-Id: I02e91c3b652428a84a9f5c58b6691ea9b1fc44d6
> Reviewed-on: https://chromium-review.googlesource.com/c/1477067
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59667}

Bug: chromium:932953
Change-Id: I015ee3795f816c8eabb5b5c5cb0ee30f365cc972
Reviewed-on: https://chromium-review.googlesource.com/c/1477675Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59715}

Bug: v8:8844
Change-Id: Id0e52a3367d641205e2f1c67d610254708fd4494
Reviewed-on: https://chromium-review.googlesource.com/c/1470813Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59714}

WasmI64AtomicWait checked alignment at 32 bit instead of 64 bit.

Bug=v8:8075

Change-Id: Ibd668ad8440e928d14a1fcae1577c4aae345151b
Reviewed-on: https://chromium-review.googlesource.com/c/1475918Reviewed-by: Ben Smith <binji@chromium.org>
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59713}

Bug: v8:7684
Change-Id: I27586a06816863c71fc69342e8b4721ac0c32a0a
Reviewed-on: https://chromium-review.googlesource.com/c/1476293
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59712}

 https://chromium.googlesource.com/chromium/deps/icu.git/+log/07e7295d..960f195

The following change includes:

  960f195 Cherry-pick 3 locale fixes

Bug: v8:8242,v8:8260
Change-Id: I0b0641db5c75d2ce926dce0e30162f0f6c106ebe
Reviewed-on: https://chromium-review.googlesource.com/c/1476290Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59711}

This reverts commit 2d914c4c.

Reason for revert: broke ubsan https://logs.chromium.org/logs/v8/buildbucket/cr-buildbucket.appspot.com/8921056195305173456/+/steps/Check_-_extra/0/logs/WasmI64AtomicWaitCall../0

Original change's description:
> [wasm] add wasm atomic wait callback test
> 
> Bug=v8:8075
> 
> Change-Id: I0c66acd329d0d6b67d34ad31c8ca401db38e0e5b
> Reviewed-on: https://chromium-review.googlesource.com/c/1377995
> Reviewed-by: Ben Smith <binji@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59709}

TBR=binji@chromium.org,adamk@chromium.org,mstarzinger@chromium.org,aseemgarg@chromium.org,clemensh@chromium.org

Change-Id: I321d73d88d99430317cca42da39c22f9ba9888aa
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/1475917Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59710}

Bug=v8:8075

Change-Id: I0c66acd329d0d6b67d34ad31c8ca401db38e0e5b
Reviewed-on: https://chromium-review.googlesource.com/c/1377995Reviewed-by: Ben Smith <binji@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59709}

- Switch #define constant to static const
- Remove unnecessary Internal version of GetCategoryGroupEnabled()
- Fix a typo in a comment

Change-Id: I4af71dc62c7c4742bdfbcaa1ad336298eb325c42
Reviewed-on: https://chromium-review.googlesource.com/c/1477221Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59708}

This lets me run tests with --no-turbo-inlining without having to
worry about false positives.

Change-Id: Icf906e631ef5821136f397af141ba8b18334da7e
Reviewed-on: https://chromium-review.googlesource.com/c/1477730Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59707}

...to make things easier to read.

R=jarin@chromium.org

Change-Id: I0e53ef67e34f696b5977d4e091c7bc7bdf0ec145
Reviewed-on: https://chromium-review.googlesource.com/c/1477739Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59706}

Bug: chromium:933179
Change-Id: I511dfa7c060fd3f4e4b59c199a27a69d4cf81f97
Reviewed-on: https://chromium-review.googlesource.com/c/1477275Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59705}

This reverts commit 6202c445.

Reason for revert: times out on arm https://logs.chromium.org/logs/v8/buildbucket/cr-buildbucket.appspot.com/8921075891748393232/+/steps/Check_-_default/0/logs/console-profile-wasm/0

Original change's description:
> [inspector] Add wasm profiling test
> 
> This adds a first simple test to check that CPU profiles contain wasm
> function names.
> 
> R=​herhut@chromium.org, kozyatinskiy@chromium.org
> 
> Bug: v8:8783
> Change-Id: I26b1fd2b7ec555c073d80a464ee8a799b017b07a
> Reviewed-on: https://chromium-review.googlesource.com/c/1454597
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Stephan Herhut <herhut@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59703}

TBR=yangguo@chromium.org,kozyatinskiy@chromium.org,clemensh@chromium.org,herhut@chromium.org

Change-Id: Ib211a38a32ee08c18e4a19f05d9fc68d6a2d2901
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8783
Reviewed-on: https://chromium-review.googlesource.com/c/1475914Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59704}

This adds a first simple test to check that CPU profiles contain wasm
function names.

R=herhut@chromium.org, kozyatinskiy@chromium.org

Bug: v8:8783
Change-Id: I26b1fd2b7ec555c073d80a464ee8a799b017b07a
Reviewed-on: https://chromium-review.googlesource.com/c/1454597
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Stephan Herhut <herhut@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59703}

This removes an outdated section order check from {CreateNewBuffer} and
relies solely on the checks done in {ProcessSection}. Those checks are
more comprehensive and will remain coherent with synchronous decoding.

R=ahaas@chromium.org
TEST=mjsunit/regress/wasm/regress-8846
BUG=v8:8846

Change-Id: Id0cdc3bf3ad78f7970c9fceff66a17ab20f4666b
Reviewed-on: https://chromium-review.googlesource.com/c/1477211Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59702}

This is a reland of 932a5ca8

Original change's description:
> [heap] Enable large objects in young generation
>
> Bug: chromium:852420
> Change-Id: Id1cde3450c5ca046029b17eee5dbe5132f299c3d
> Reviewed-on: https://chromium-review.googlesource.com/c/1477212
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59669}

Bug: chromium:852420
Change-Id: If6dc439e410542da72c3edc08c9926b3edd1186e
Reviewed-on: https://chromium-review.googlesource.com/c/1477736Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59701}

Also disables tests in Lite mode that currently fail with lazy source
positions.

Bug: v8:8510
Change-Id: Id27b7cb31682559173b137ef51eaf06d517ee9ec
Reviewed-on: https://chromium-review.googlesource.com/c/1477129
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59700}

R=jgruber@chromium.org

Change-Id: I03c1aec177c389bf4d6550a26ad30d870e10135a
Reviewed-on: https://chromium-review.googlesource.com/c/1477738
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59699}

This adds a new hint type for live ranges that allows the control
flow aware allocation to hint the register that should be used on
reload. Avoid unnecessary register to register moves and helps
with code size.

Change-Id: I01e870514446eab3bffb89b2e00644bd215b81d5
Reviewed-on: https://chromium-review.googlesource.com/c/1460944Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Stephan Herhut <herhut@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59698}

This allows non-monolithic embedders to always allocate memory
for ArrayBuffer instances using the right allocation method.

This is based on a patch that Electron is currently using.

Refs: https://github.com/electron/electron/blob/1898f9162073910c05958295c612deec6121a892/patches/common/v8/array_buffer.patch
Change-Id: I39a614343118a0594aab48699a99cc2aad5b7ba9
Reviewed-on: https://chromium-review.googlesource.com/c/1462003Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59697}