The SIMD proposal has been merged into the main spec, it is not
necessary anymore to execute the SIMD proposal tests additionally.

R=gdeepti@chromium.org

Change-Id: I1c5847a1bfba2d0c956cf353816fd71417506a1f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3609848Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80241}

Allow live ranges to be displayed beside the
instruction sequence in turbolizer.

Bug: v8:7327
Change-Id: Idec5130655ccc9365dd32ec6927d8615a3e5c570
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585960
Commit-Queue: George Wort <george.wort@arm.com>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80226}

Add a simple unwinder for gdb which, on x64,  walks frame pointers
whenever there is no source information available. Ideally we would only
do this for V8 PCs but this appears hard to do in an Unwinder without
messing with gdb's internal assumptions.

Change-Id: Iba1e62a3768340ee912e81d691237c1920a8ae91
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3608628Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80204}

Add basic profiler support
- Moved profiling-related helpers to profiling.mjs
- Added bottom-up profiler table
- Added mini-timeline overview wit opt/deopt events and usage graph
- Added flame-graph, pivoted on the currently selected function

Drive-by-fixes:
- Added/updated jsdoc type information
- Fixed static symbols (builtins, bytecodehandlers) that were both
  added by the CppEntriesProvider and from code-events in the v8.log
- Support platform-specific (linux/macos) dynamic symbol loader by
  adding a query path ('/v8/info/platform') to lws-middleware.js
- added css var --selection-color

Bug: v8:10644
Change-Id: I6412bec63eac13140d6d425e7d9cc33316824c73
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585453Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80192}

ShadowRealm.prototype.importValue dynamically imports other files, so
the testing infrastructure need to look for these calls to gather files
to push to e.g. test devices.

The reason to do this over explicit Resources: comment lines is to also
cover test262.

Bug: v8:12829
Cq-Include-Trybots: luci.v8.try:v8_android_arm64_n5x_rel_ng
Change-Id: I6a06933d5da849157b2c7d5fa6b7b98d39f7d39f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3606391Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80189}

Bug: v8:10644
Change-Id: Iff48e762fd895df63d599cf4663f8b6f44373a00
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3605241Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80160}

Invoking a JSBoundFunction is slightly slower than a normal
JSFunction (since we don't have to first jump to the
target_function).

The closure steps in SourceTextModule ExecuteAsyncModule is
controlled by the engine so it is better to create dedicated
context slots for the captured values.

Change-Id: I8163fc4b302d6d22906e578164470c9e28e768e0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584601Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Chengzhong Wu <legendecas@gmail.com>
Cr-Commit-Position: refs/heads/main@{#80155}

Drive-by-fix:
- Wait for linux-perf to flush large profile files

No-try: True
Change-Id: I729aa897e3f55fc92a9412208322ee099029453f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3605282Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80154}

The `set disable-randomization off` command may fail on some platforms,
such as the `rr` debugger. We can just ignore the error and carry on.

Change-Id: I9b8dae183a9852178a3d3411172bf3aef173c995
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3602519
Auto-Submit: Pierre Langlois <pierre.langlois@arm.com>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80143}

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.calendar.prototype.fields


Bug: v8:11544
Change-Id: I8df987ddbbf08372da637d7c4620c428fce97cae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3534619Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80127}

As per https://tc39.es/ecma262/#sec-hostimportmoduledynamically defined,
referencingScriptOrModule in HostImportModuleDynamically can be a Script
Record, a Module Record, or null.
So to https://tc39.es/proposal-shadowrealm/#sec-shadowrealmimportvalue,
the HostImportModuleDynamicallyCallback is been invoked with a `null`
resource_name. This may not be considered a breaking change as the
parameter resource_name is defined as Local<Value>.

Updates d8's DoHostImportModuleDynamically to handle null resource_name,
and resolve the dynamically imported specifier relative to the executing
script's origin. In this way, we have to set ModuleEmbedderData.origin
even if the JavaScript source to be evaluated is Script. Also, a
ModuleEmbedderData is created for each ShadowRealm to separate their
module maps from the initiator context's.

Bug: v8:11989
Change-Id: If70fb140657da4f2dd92eedfcc4515211602aa46
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3522883Reviewed-by: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Chengzhong Wu <legendecas@gmail.com>
Cr-Commit-Position: refs/heads/main@{#80118}

Using this flag has led to several duplicate issues. We need to stop
using the flag for a while until the issues are investigated.
Potentially these are all false positives.

No-Try: true
Bug: chromium:1317880
Change-Id: I09f4e1c642befc3a8f5b88c2eb003931dc112826
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3602508
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80114}

Change-Id: I1ad5d4796168115fe2dc88d073a663c87cab73cb
No-try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3596171Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80095}

- Use explicit options when running gmcole.py from run-gcmole.py
- Use gcmole.py-relative paths to find the default V8 root dir for
  maximum convenience when running locally

Change-Id: Iba0da90b99b0321129f1c4099f437c76dabb1186
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582386Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80058}

We do change CWD in the script which breaks relative input paths
to d8 and .js files for instance.

Drive-by-fix:
- Show clear warning if `perf record` failed

Change-Id: Ib900ca6b53307e13be459beba1e96ddfc8ee9b79
No-try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3593784Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80057}

These tools haven't been used in a while and are unmaintained.
We can use pprof with stack-filtering to achieve similar results.

Change-Id: I84392c066dffc6b0d9efba27a8fdfb31091796bb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3593786Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80026}

i::Logger          => i::V8Log
i::PerfJitLogger   => i::LinuxPerfJitLogger
i::PerfBasicLogger => i::LinuxPerfBasicLogger

Note: V8Log is currently still managing instances of other loggers,
this functionality will be moved to a separate class in the future.

Bug: v8:12795, chromium:1316443
Change-Id: Id1b44e65abb7819eb6d6c718a1baa9ed61ad51aa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3593133Reviewed-by: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80016}

Turn on fuzzing for disabled map space to get additional test coverage.

Bug: v8:12578
Change-Id: I82c577c8c24b51df627c873fde95fb239e16d36f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3592892Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80012}

- Fix processing lines that are longer than 1 chunk
- Add and use --code-font-size var
- Make minimum panel width 600px
- Track _lineNumber better Processor for easier debugging

Bug: v8:10644
Change-Id: I656e2ac5f0e9ba25ffa4b8c3ecc4b744144a691d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585568Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79995}

This improves the experience over an SSH connection.

No-Try: true
Change-Id: Id6971f2ad2c75c85f91bea71f7215ce7a948ee71
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3586987
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79992}

- Start moving profiler scripts to tools/profiling
- Add linux-perf-d8.py wrapper script that runs `perf record` and
  `perf inject`
- Improve waiting for the d8/chrome process and allow for early
  termination if --timeout is provided
- Allow fractional seconds for --timeout
- Delete run-perf.sh and provide equivalent functionality in
  linux-perf-d8.py

Change-Id: Iac1d6cf895aa7159a9bbb387aca7632df27a0ca3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585951Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79991}

Change-Id: I3e3a59172a0ffa482a9a3d0c23f616bbf1cf7fb5
No-Try: True
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3578858Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79927}

API logging has not been used in a while and we have valid alternatives:
- Runtime call stats
- Profiling
- Timer events

Together they make --log-api superfluous and we can remove it and reduce
the number of branches when calling into the V8 API.

Change-Id: Ie10f70b61ebdb82166270e7630ebcf20a27c4902
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3574549Reviewed-by: Marja Hölttä <marja@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79904}

- Parse the condensed source position info support for jitted code
- Add progress bar/circle to loader
- Use temporary Array instead of concatenated strings in escapeField to
  reduce gc pressure
- Use bound functions as event handlers in more places
- Various timeline legend fixes:
  - Fix columns alignment when duration is present
  - Use fixed width to avoid breaking the UI
  - Correctly show total/percents for 'All' and 'Selection' entries
  - Improve usability of filtering buttons: added tooltips and fixed
    redrawing on filtering

Bug: v8:10644
Change-Id: I1275b31b7b13a05d9d6283d3067c1032d2d4819c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3574544Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79897}

This is a follow up CL for https://crrev.com/c/3538284.
Tests credited to https://crrev.com/c/3468352.

- Add unicode filename path test.
- Convert ansi encoded filename argv to utf8 encoded on windows. Because
the ansi encoded filename argv may lose some information for unicode
filename, and we need to use GetCommandLineW to get the actual unicode
filename argument. And we convert it to utf8 encoded to be consistent
with subsequent processing.
- Use REPLACEMENT CHARACTER to replace the characters which cannot be
encoded with sys.stdout.encoding in progress.py.

This CL should be **reverted** if new unicode filenames cause problems.

Bug: v8:12541
Change-Id: Ic5c5ae342b3a5b11c3119452af03c9165d429ed7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568926Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#79850}

Currently, v8_presubmit uses the system version of depot_tools for C++
and JS linting. This is an issue for branches which rely on a specific
depot_tools version for linting. This CL proposes the use of the
depot_tools version defined in DEPS.

This change was evaluated in https://crrev.com/c/3571813. The first
v8_presubmit attempt uses the system-defined depot_tools version, while
the second attempt is rebased on this CL and uses the DEPS defined
version.

Bug: v8:12743
Change-Id: I87e14ea5c1e3dc20b34106ff56f608d55ec3253d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3571805Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Alexander Schulze <alexschulze@chromium.org>
Reviewed-by: Tamer Tas <tmrts@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79828}

Reduce the dispatching overhead in the hottest loop when parsing log-lines.

- Using a JSMap we can avoid internalizing strings
- Preprocess the dispatch table and only have varArgs or functions as
  parsers
- string[] seems to be slightly faster than string.charAt()

Bug: v8:10644
Change-Id: I03b13bdeecda1ad037191ff74e05142ceeb6533c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3571890Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79816}

* When the source node is above the target node we draw curved (cubic bezier) lines.
* Else, we fallback to rectangular lines.

Change-Id: Ic80245c7b449942e4477f0056e63618cfbeaaaf7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3565715Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Auto-Submit: Harshal Nandigramwar <pro.bbcom18@gmail.com>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79807}

- Double click on the current timeline selection to focus and zoom in
- Make timeline-tracks focusable by setting a tabindex
- Add back arrow-key navigation for the map panel (only when focused)
- Prepare code for adding keyboard-based horizontal scrolling
- Use --code-font CSS variable

Bug: v8:10644
Change-Id: Ic473695c9fcdc795d173cd064b4660e100ae8b24
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568475Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79786}

Bug: v8:12581
Change-Id: Iea05e0171ad6edbda569c443c0db97e5c0bfc9ad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3569222Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Alexander Schulze <alexschulze@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79769}

- Add references from CodeLogEntry to DeoptLogEntry
- Add simple basic blocks in the disassembly code view

Bug: v8:10644
Change-Id: I15f3b56751d515b902185b08f9454be3951ffa48
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3540142Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79754}

- Process the minidump in a separate function to avoid keeping
  references to the mmapped file during disposal
- Clear all MinidumpReader variables before disposing the mmapped file

Change-Id: I0ce468597329d6f7d703a08309e4be378d9c27cf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568469Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79750}

Bug: chromium:1292013
Change-Id: I5d73c8a500d66143e569d4605133948a71c82c8b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568468
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79749}

Bug: chromium:1292016
Change-Id: I9404ca1c38c6231cada6c5d9af5e5859e4c0e261
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568467
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79744}

Bug: v8:12581
Change-Id: I4d98e48801ffcfbe507c61ba296da67359e3f5cb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568464
Auto-Submit: Alexander Schulze <alexschulze@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Alexander Schulze <alexschulze@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79743}

No-Try: true
Bug: chromium:1288926
Change-Id: Ie28021a34649aeaa68c34252ffe181163a7df2ae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568466
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79740}

Bug: v8:12581
Change-Id: I2e869a81f6a8c785954a73cf2e97dae2a9ab3ade
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568450
Auto-Submit: Alexander Schulze <alexschulze@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79738}

Bug: v8:12581
Change-Id: I6c665161a3f376321feb773d809c5453ef1d46f9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568445Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Alexander Schulze <alexschulze@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79735}

Change-Id: I38d0f52b7add9247af50aa5f470a88587e97203f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3565725Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79731}

Bug: v8:12581
Change-Id: I73d8248bd109c906aa0296b3b7bfc19ffd1c00ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568447
Auto-Submit: Alexander Schulze <alexschulze@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Reviewed-by: Tamer Tas <tmrts@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79730}