We don't need to serialize the descriptor array when concurrent
inlining so we can skip the methods related to serializing.

While doing so we bumped into two broken tests in serializer-tester.
Since we are planning on removing the serializer soon, it makes more
sense to remove them than trying to fix them.

Bug: v8:7790
Change-Id: Ib1feea16f09edebbd9927afc4178ed10f85fd42f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975300
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75307}

In the first CL to introduce a histogram for deserialization time a
high-resolution counter was required to get microsecond precision.
However, with the histogram we want to detect if we need to optimize
deserialization or not. For this information high precision does not
matter, it is more important that we get information from all devices.

R=clemensb@chromium.org

Bug: v8:11862
Change-Id: Id72e25ab7e5ac8217393ab6fd11416187822a158
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2978256Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75306}

Change-Id: If8017e175fe4568ba10889dbb3b88cce897ec57e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972736
Auto-Submit: Junliang Yan <junyan@redhat.com>
Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75305}

This partially reverts https://crrev.com/c/2649032
The previous CL was a bit too aggressive in replaceing movl with Move
which does sign extension for int32.

We can only safely replace movl if the input is in the [0, 2**31] range.


Bug: chromium:1220855
Change-Id: I6c29db1acd7de6b03ffaf802a868b6a531252bc0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975860Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75304}

Add a similar check used in vlbr to make sure offset is
a 12 bit unsigned integer.

Change-Id: I12ef8734a7223fa375a31e55ecc81d1175de17c0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2977272Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75303}

  - Asynchronously load source map from sourceMappingURL
  - Once loaded, annotate source positions with their original position
  - Update script panel tooltip to include link to original source
     - For the above, make DOM.element a slightly more flexible API,
       allowing defining attributes and children
     - Also fix ToolTipEvent handling to support nodes.
  - Shuffle around some code to make createScriptNode async, in case
    we want to load the source map when building the script node itself.
  - Drive-by: make source markers a simple backgroundColor when there is
    only one group.

Change-Id: I0926807761cbfe8b6dd8ff5154815a7e5ccb39bf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972827
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75302}

Bug: v8:11872
Change-Id: I95fb2199fb91f51e9b03a8a88000f9240d5d104b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2978255
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75301}

Now that SimpleStringBuilder is only used in conversions.cc, it can be
moved there making it easier to assess its safety and limit further
use of this potentially unsafe API. (Additionally unused methods Reset
and size are removed).

Bug: v8:11917
Change-Id: I0515fe4f34bb8f7e7ea464b75394fa3d03939af1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2978253
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75300}

It was not in sync with the optimization, which relies on
inspecting up the length and name fields even for bound
functions.

To make a now meaningful serializer test actually pass, I have
to to make some changes to the test setup.

I'm also moving the function name and length index constants
from JSFunction to JSFunctionOrBoundFunction for clarity.

TBR=marja@chromium.org

Bug: v8:7790
Change-Id: I36dd3c80996ccb53810c7ea9bfceb5c84ffd60ab
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972919
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75299}

StringBuilder and its base class SimpleStringBuilder aren't very safe
and are a potential source of memory leaks or double-frees.

This removes the StringBuilder class and converts all of its usages to
use the standard library.

(As a drive-by, this converts std::ostream* to std::ostream& which is
more idiomatic C++).

Bug: v8:11917
Change-Id: I0eaf9d60cf49836e65bb28f0e114b33ef8103a61
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2978252
Auto-Submit: Dan Elphick <delphick@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75298}

If a test specifies --stress-concurrent-inlining it shouldn't be
run in predictable mode, since it is depending on some concurrent
behavior (a race condition) between threads.

Bug: v8:11907
Change-Id: I027eed056689a8ee62675fce7dfa0701d202e970
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975298Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75297}

After a series of CLs per component, this removes all remaining NOLINT
annotations that my script identified as not needed (because removing
them does not cause a presubmit error).

R=mlippautz@chromium.org, jkummerow@chromium.org, leszeks@chromium.org
R=cbruni@chromium.org

Bug: v8:11879
Change-Id: Ia403c23588a0c2871b987931f6c26f85821e9e9c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972733Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75296}

We can get rid of this by deferring adding a new global to the module's
globals, and using the current size of globals to determine allowed
global indices.

Bug: v8:11895
Change-Id: Ide80eab2de4abdbab96a7298acf3665599c394ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972908
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75295}

Various field dependencies assume that the receiver map and the field
owner map agree on field meta data. That's not necessarily true when
the receiver map is already deprecated. We should skip over deprecated
maps.

- Fix a bug in SerializerForBackgroundCompilation. It used to process
  even deprecated maps.
- Fix a bug in FilterRelevantReceiverMaps. It used to store the original
  map rather than the new version.
- Turn some compilation dependency DCHECKs into CHECKs.
- CHECK in MapRef::FindFieldOwner that the map is not deprecated. While
  there might be valid use cases for calling the underlying
  Map::FindFieldOwner on a deprecated map, we never want to do that in
  the compiler.

Note that we skip any deprecated maps in JSNativeContextSpecialization's
ReduceNamedAccess. That's why I believe the issue could only be observed
with --concurrent-inlining and only in the form of a failing DCHECK.

Bug: chromium:1221812, v8:7790
Change-Id: I998b4ce1954be01eb6e0feb491ccc6b8306c685f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2976655
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75294}

Bug: v8:11656
No-Try: true
Change-Id: I60bdedc1eb7fc04a3ed1f09bf02fbddffa05c4dd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975861
Auto-Submit: Almothana Athamneh <almuthanna@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75293}

- Add an expected type argument in DecodeWasmInitExprForTesting. This
  eliminates the need to check for kWasmVoid in consume_init_expr.
- Invoke StartDecoding() to initialize module in
  DecodeWasmInitExprForTesting.
- Pass the current module to DecodeInitExprForTesting.
- Adjust tests.

Bug: v8:11895
Change-Id: I13b71b68a2011bf08742701cb9dd986afd6e55f8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972907
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75292}

1. Adds the flag --sparkplug-on-heap
2. Creates OnHeapAssemblerBuffer
3. Generates code on heap (but still relocates later)
4. Provides Assembler::IsOnHeap function

Bug: v8:11872
Change-Id: I6223bf27a5fbcfb5f94f3462b951443b35273661
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2949097
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75291}

Feedback suggests that it would be easier to trace minified JS code if
line numbers were included in the ETW JIT events, so I added them.

Bug: v8:11043
Change-Id: I1660c695db2e4659184b2b679839dafe256fb3ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2971625Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Sara Tang <sartang@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#75290}

This is a reland of 0f90a2aa.
The issue was inverted destructor order between WasmCodeManager and
WasmEngine. WasmEngine has to be destructed first, because it contains
a barrier to ensure that background compile threads finished before
global state is being destructed.

Original change's description:
> [wasm] Provide a global WasmCodeManager
>
> The WasmCodeManager was part of the WasmEngine so far, but there is only
> exactly one WasmEngine. Hence we can pull it out, and also remove the
> pointer in the WasmCodeAllocator.
>
> The argument passed from the single constructor call is now inlined in
> the constructor itself.
>
> Drive-by: Replace "GetPlatformPageAllocator()->CommitPageSize()" by just
> "CommitPageSize()".
>
> R=jkummerow@chromium.org
>
> Bug: v8:11879
> Change-Id: I6c0e74cea308f5806d1aa479945d90b6ef8d1613
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972909
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75270}

Bug: v8:11879
Change-Id: I0eaa2395f5c1e30f3f7303c5f3df70c227b74d3d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975859
Auto-Submit: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75289}

This will download a prebuilt bazel on Ubuntu bots if gclient variable
download_prebuilt_bazel is set. The currently pinned version is:
5.0.0-pre.20210604.6.

This is planned to only run on specific bots that use a new recipe
for building with bazel:
https://crrev.com/c/2972749

Bug: v8:11912
Change-Id: I8ff405fc03bfede4762bf4e8577cb1feab56f7c4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972918
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75288}

This reverts commit 3296de2f.

Reason for revert: Blocks the roll - https://chromium-review.googlesource.com/c/chromium/src/+/2970676

Original change's description:
> [sparkplug] Trigger compilation when a FBV exists
>
> We were gating baseline compilation on FBV allocation, but in some
> cases, the feedback vector may be allocated eagerly (notably, if we are
> logging function events). Instead, unconditionally try baseline
> compilation after ensuring the feedback vector exists.
>
> Bug: v8:11420
> Change-Id: I1264a1d541a74d4eccb5caf65c360ac23836a1a8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953161
> Auto-Submit: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Patrick Thier <pthier@chromium.org>
> Reviewed-by: Patrick Thier <pthier@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75242}

Bug: v8:11420
Change-Id: Ia9524e3a57eda7ec069f29652acc7593bf680509
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2976654
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75287}

This reverts commit a93293d9.

Reason for revert: Need to revert a dependency which is blocking the roll - https://chromium-review.googlesource.com/c/v8/v8/+/2953161

Original change's description:
> [sparkplug] Trigger compilation only when we don't have baseline data
>
> If we trigger baseline compilation unconditionally on bytecode budget
> interrupt after we have compiled the function with sparkplug already, we
> will arm back-edges for OSR unconditionally. Since the OSR arming
> mechanism is the same for Sparkplug and TurboFan, this means that we
> will immediately arm back-edges for OSR to TurboFanned code.
>
> Bug: v8:11656
> Change-Id: Ic8e5d1899a3a203321e063ada474d39f2627ea88
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972922
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Patrick Thier <pthier@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75285}

Bug: v8:11656
Change-Id: I2e2910f8882314260ff70a3c996ef74903b6851b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2976653
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#75286}

If we trigger baseline compilation unconditionally on bytecode budget
interrupt after we have compiled the function with sparkplug already, we
will arm back-edges for OSR unconditionally. Since the OSR arming
mechanism is the same for Sparkplug and TurboFan, this means that we
will immediately arm back-edges for OSR to TurboFanned code.

Bug: v8:11656
Change-Id: Ic8e5d1899a3a203321e063ada474d39f2627ea88
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972922Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75285}

When looking up the break index for a given source position, default to
the last break index if there is neither a precise match nor a breakable
position after the source position (in which case we still pick the
first candidate).

Fixed: chromium:1222065
Bug: chromium:901819, chromium:782461, chromium:1222060
Change-Id: I10d6a086b2d5fadc9e6dca0c49ed4187eb0359ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972917
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Kim-Anh Tran <kimanh@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75284}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/e03cfed..69cba92

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/466954e..7bff39b

Rolling v8/buildtools/third_party/libc++/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx/+log/8fa8794..79a2e92

Rolling v8/third_party/aemu-linux-x64: PN9-ZWJ3VamzkSeIVWLhS3mXDEVLPX86Ht5EEDH1O-EC..KN9a-2MYhLQ9kDLdCOca4xZcBjrhMIzoD4ReyO0u95IC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/cb63922..2ba6b1f

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/473499b..b714c17

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/03ff857..2d4e9fd

TBR=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com

Change-Id: I1c17166b07efae9631726b57f27260997571f120
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2977585Reviewed-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@{#75283}

This reverts commit 24c626c1.

Reason for revert: Blocks V8 roll into Chromium (changed error messages cause tests to fail):
https://ci.chromium.org/p/chromium/builders/try/linux-rel/724109?

Original change's description:
> Improve error messages for property access on null/undefined
>
> Only print the property name when accessing null/undefined if we can
> convert it to a string without causing side effects.
> If we can't, omit the property name in the error message.
> This should avoid confusion when the key is an object with toString().
> E.g. undefined[{toString:()=>'a'}] doesn't print 'read property [object
> Object]' anymore, which was misleading since the property accessed would
> be 'a', but we can't evaluate the key without side effects.
>
> Bug: v8:11365
> Change-Id: If82d1adb42561d4851e2bd2ca297a1c71738aee8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960211
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Commit-Queue: Patrick Thier <pthier@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75250}

Bug: v8:11365
Change-Id: Ic63f34033254f55b3871041633d84ea48586a75d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2977374
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75282}

This enables running some of the new instructions on the simulator
including vcgd and vclgd.

Change-Id: Icd1c6ced124aec8608dece855f85ba350c4247fd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2976027Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75281}

This is a reland of dd8845cd

Original change's description:
> [intl] Improve test coverage of "best fit" localeMatcher
>
> https: //docs.google.com/document/d/1cPGfiihn76yj2iAomKcspPFyLLcnk3WkCiqceBQPQyk/edit#heading=h.cc9tt7s0iwsd
> Bug: v8:7051
> Change-Id: I8c35e859062c5bdb009334dd1b725751e6df2123
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2965481
> Reviewed-by: Shu-yu Guo <syg@chromium.org>
> Commit-Queue: Frank Tang <ftang@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75228}

Bug: v8:7051
Change-Id: I9af13b8fdf7ec3de2ac24050074d13fcdef981c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2973648Reviewed-by: Frank Tang <ftang@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75280}

  - Fix inline script line nos
  * Change the map source pos panel to a table
  3. Fix script sorting to not crash on missing name

Change-Id: I250c830f4be5f734a9489622ce162615bf80aab7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2964606
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75279}

This reverts commit 2588380d.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Arm%20-%20debug%20builder/34664/overview

Original change's description:
> [assembler][arm64][arm][ia32] Add more Assembler::CodeComment
>
> Use more code comments to better document generated assembler code.
> This CL also attaches a CodeComment to FrameScope.
>
> Change-Id: I45afc3e4078dc161316b877fbbd1ae8bcd6e821d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2964392
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Reviewed-by: Victor Gomes <victorgomes@chromium.org>
> Commit-Queue: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75277}

Change-Id: I6d36535ca96133cc83b3d6194a3d53889f735499
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972826Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75278}

Use more code comments to better document generated assembler code.
This CL also attaches a CodeComment to FrameScope.

Change-Id: I45afc3e4078dc161316b877fbbd1ae8bcd6e821d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2964392Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75277}

Without this, the files are ignored when V8 source is copied to another
repository (for example Node.js).

Change-Id: Ia1ac2d2673d13a266f2beaa1dadd93df903afd5d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972915Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michaël Zasso <mic.besace@gmail.com>
Cr-Commit-Position: refs/heads/master@{#75276}

When v8_enable_external_code_space is enabled the Code objects are
allowed only
- in CodeDataContainer::code field
- as uncompressed values embedded in Code instruction streams

Bug: v8:11880
Change-Id: I080a678fd77a7e42c6a397e7145a640fd07d6e83
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2969828Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75275}

This reverts commit 0f90a2aa.

Reason for revert: Breaks MSAN, please see https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/38941/overview

Original change's description:
> [wasm] Provide a global WasmCodeManager
>
> The WasmCodeManager was part of the WasmEngine so far, but there is only
> exactly one WasmEngine. Hence we can pull it out, and also remove the
> pointer in the WasmCodeAllocator.
>
> The argument passed from the single constructor call is now inlined in
> the constructor itself.
>
> Drive-by: Replace "GetPlatformPageAllocator()->CommitPageSize()" by just
> "CommitPageSize()".
>
> R=​jkummerow@chromium.org
>
> Bug: v8:11879
> Change-Id: I6c0e74cea308f5806d1aa479945d90b6ef8d1613
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972909
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75270}

Bug: v8:11879
Change-Id: I110eec313762d73073f530aec7cf0be82c4db344
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972921
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#75274}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/d6115b1..e03cfed

Rolling v8/buildtools/linux64: git_revision:7d803996740ccd587c54062750cbe04dfbc3c423..git_revision:170c2dba1e0c0299fe8c6a441caf2f2352a42ae0

Rolling v8/third_party/aemu-linux-x64: h_kO6UaQmxXGNfG0ofG4wgKw_URVHcderPkx6AlamR0C..PN9-ZWJ3VamzkSeIVWLhS3mXDEVLPX86Ht5EEDH1O-EC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/893c99a..cb63922

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/0e77445..03ff857

TBR=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com

Change-Id: Ic1579515b592206a34f25296d9e24e9d99a8e13d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975087Reviewed-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@{#75273}

Merges `NativeModuleModificationScope` (with an implementation using
Intel PKU, if available, and mprotect otherwise) and
`CodeSpaceWriteScope` (for Apple Silicon, where switching to RWX with
mprotect is disallowed anyway, so MAP_JIT and thread-local switching
must be used).

Because `CodeSpaceWriteScope` sounded better (and is shorter), we kept
its name (which unfortunately makes the diff a bit harder to read).

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

Bug: v8:11714

Cq-Include-Trybots: luci.v8.try:v8_linux64_fyi_rel_ng
Change-Id: Ib2a7d18e72797a725ed34b904c70769166d811dd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972911Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Daniel Lehmann <dlehmann@google.com>
Cr-Commit-Position: refs/heads/master@{#75272}

Rolling v8/third_party/google_benchmark/src: https://chromium.googlesource.com/external/github.com/google/benchmark/+log/5b75184..62937f9

Add missing trailing commas (#1182) (Dominic Hamon)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/62937f9

Provide helpers to create integer lists for the given ranges. (#1179) (PCMan)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/c932169

TBR=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com,mlippautz@chromium.org

Change-Id: I81658863aa16aebb1c0f76d79bdbf6abcbd1accf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975083Reviewed-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@{#75271}

The WasmCodeManager was part of the WasmEngine so far, but there is only
exactly one WasmEngine. Hence we can pull it out, and also remove the
pointer in the WasmCodeAllocator.

The argument passed from the single constructor call is now inlined in
the constructor itself.

Drive-by: Replace "GetPlatformPageAllocator()->CommitPageSize()" by just
"CommitPageSize()".

R=jkummerow@chromium.org

Bug: v8:11879
Change-Id: I6c0e74cea308f5806d1aa479945d90b6ef8d1613
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972909
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75270}

The exception meta-data API created several objects in the wrong
context, resulting in the exception context being kept alive for
too long.

Bug: chromium:1221089
Change-Id: I02aece4e10d9bd559d49f98fe1c3e44a09e27eef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975301Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75269}

... and OPTIMIZED_CODE_LIST and DEOPTIMIZED_CODE_LIST slots of
NativeContext which serve as heads of respective weak lists of Code
objects.

Drive-by: trivial NativeContext methods are moved to contexts-inl.h
header.

Bug: v8:11880
Change-Id: I0f2ca967b2820f84c279fea702bab28829f65d0e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2968416Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75268}