- removed some 'feature envy' instances:
  - created a AugmentedOptions class to take care of non trivial option look-ups
  - moved some calculation closer the the actual data
- promoted parameter that was passed around a lot (options) to filed in the offending class
- similar object creation looks a bit more similar
- CommandContext provides a wrapper that ensures resource de-allocation
- separate tests from standard and num_fuzz runners
- added a couple of more tests to improve coverage

This is still in flux. But further changes risk creating a disconnect between the original implementation and further refactorings.

Bug: v8:12785
Change-Id: I0ec2e9c6a81604a5cd1d4a80982dd3329c1b48db
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3686411
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81148}

Bug: v8:7700
Change-Id: If242def89e2ce1e7a8da3619fb514e457d83c5ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702442Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81147}

The chromium.tests pool migrates to Windows 1909 (Windows-10-18363). We switch to the same version due to higher bot availability (for now).

Bug: chromium:1335886,chromium:1124829
Change-Id: I82177ad9a86b438a46747998b1fbd4108911d17b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3704498
Auto-Submit: Alexander Schulze <alexschulze@chromium.org>
Commit-Queue: Alexander Schulze <alexschulze@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81146}

The CHECK was checking that we return the exception sentinel if an
exception is pending. The other way is actually equally important: If we
return the exception sentinel, a pending exception must be scheduled.

Since the CEntry stub assumes that all values returned from runtime
functions are valid tagged values (pointing into the JS heap), do also
check that. This check would have prevented the linked issue.

Bug: chromium:1311960

R=jkummerow@chromium.org
CC=​cbruni@chromium.org

Change-Id: I833d2968529e3b73f3009e0104b46182197c2d23
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3675098Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81145}

Bug: v8:12868
Change-Id: I9b7cbd3851b3819bcc2c32e273ddae16b9d812ca
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702266Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Andy Wingo <wingo@igalia.com>
Cr-Commit-Position: refs/heads/main@{#81144}

This reverts commit 76a07814.

Reason for revert: Failing on GC stress: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/23140/overview

Original change's description:
> [wasm-gc] Implement array.init_from_elem
>
> Bug: v8:7748
> Change-Id: I65dbb496302045820063bd0f4f9ea054e6a645bd
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695580
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81128}

Bug: v8:7748
Change-Id: Ia72cc121c50af7906e54a1742529bf081c511a8a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3704506
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81143}

The names we returned in WasmOpcodes::OpcodeName(...) for Atomics opcodes
did not match the spec. This patch fixes that.
This matters in particular when we want to provide disassembly of
modules.

Bug: v8:6532
Change-Id: Ia8791feee617b75d598ad373bafba7da5687f523
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3704496
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81142}

Asynchronous WebAssembly compilation returns the compilation result
through resolving a result promise. So far the result promise was
resolved through V8-internal APIs. This caused problems, because
resolving promises requires correct handling of microtasks, and
microtasks are controlled by the embedder, and not by V8.

This CL adds an API to allow the embedder to resolve the result
promise itself, and handle microtasks as necessary.

The use of the new API is available in a full CL, without API dance:
https://chromium-review.googlesource.com/c/v8/v8/+/3694975

R=cbruni@chromium.org

Bug: v8:12953
Change-Id: Ie9a56041f2d3e0c46664f1938e995f1e2c22f981
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695584Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81141}

rep stos appears to be much slower for small stacks. Use pushq instead,
in a loop, unrolled to push eight at a time.

Bug: v8:7700
Change-Id: Ieddf52ed514cb86f5c1dd7b159cc9a1a1c440103
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702440Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81140}

We already make code pages writable & executable for concurrent
Sparkplug. We can use the same mechanism for sweeping of code pages on
the background thread, instead of scheduling incremental tasks on the
main thread. This allows us to remove almost all special
handling for code pages in the sweeper and allows us to off-load more
work from the main thread.

Bug: v8:12967
Change-Id: Idb8e9f8e2eadbec26a386f2de683a80087f671f3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695557Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81139}

Bug: v8:12965
Change-Id: I16b67335978714f05658f75f7a9a038270dbd69b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702337
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81138}

Bug: v8:12968
Change-Id: I87d2ec47a250e4f69cf5c7002c254bd50276004b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702800Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81137}

This CL adds serialization and deserialization
support for ArrayBuffer and TypedArray.

TODOs:
- Support resizable ArrayBuffer.
- Support detached ArrayBuffer.
- Support shared ArrayBuffer.

Bug: v8:11525
Change-Id: Ic9267a78e427ee20d55f2f0483b677eeee5c214b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3688896
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81136}

Check the turbofan and maglev filters when deciding whether to tier up,
rather than tiering up even when filters don't pass, then failing to
compile when actually trying the compilation.

Change-Id: I92eac9aaca1e33e97b77afcc531b9af4d3a9288a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702444
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81135}

Currently getting the following errors:
```
error: variable 'string' set but not used
unused variable 'start'
```

Bug: v8:12868
Change-Id: I9ee8a14da7d126270255558a630ffd2af3f87f15
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702966
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81134}

This reverts commit ae55e4d2.

Reason for revert: blocks Chromium roll: https://ci.chromium.org/ui/p/chromium/builders/try/android-pie-arm64-rel/b8811418393278278849/overview

Original change's description:
> [sandbox] Enable sandboxed pointers on Android
>
> Bug: chromium:1218005
> Change-Id: Ie7c100193848544e661ee62f88be4601426a4e18
> Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702251
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Commit-Queue: Samuel Groß <saelo@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81117}

Bug: chromium:1218005
Change-Id: I78c6d44c917e217bfd5ab1ab893e7b417a63a99a
Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702799
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Owners-Override: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81133}

The native module cache makes it difficult to test deserialization,
because the native module just gets loaded from the cache instead of
deserializing the serialized module. This CL adds a new flag,
--wasm-native-module-cache-enabled, to control whether the native module
cache is enabled or not. The cache gets disabled by handling all modules
like asm.js modules when the cache gets disabled, as the cache is not
used for asm.js.

The name of the flag is positive (i.e.
`enabled` instead of `disabled`) to avoid double negation. The flag is
true by default, and set to false in tests.

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

Bug: v8:12964
Change-Id: If2b96a95ccf37f2eb8a868ad1661c3325c1048f6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3703836
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81132}

When using the StringForwardingTable for all strings, string shapes can
change during GC. This led to an issue when a ConsString was
transitioned to a ThinString (and potentially shortcutted to
InternalizedString) while flattening.

Bug: chromium:1335826, chromium:1329726
Change-Id: Ide243a5e24fd41374053972fb7bab8217d7a14fd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3705377Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81131}

This reverts commit dac61556.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20TSAN%20-%20no-concurrent-marking/9288/overview

Original change's description:
> [inspector] Allow Debugger.setScriptSource to edit top-most function
>
> This CL adds a new boolean flag on the Debugger.setScriptSource CDP
> method that gets piped all the way through to the live-edit mechanism.
> The new flag enables live-editing of the top-most function while
> paused.
>
> The CL adds a couple of tests that cover the new core use cases for
> this flag.
>
> R=​jarin@chromium.org
>
> Bug: chromium:1334484
> Change-Id: I12fec591b2b6550d89748714620e629548e1b9c1
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695354
> Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Commit-Queue: Simon Zünd <szuend@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81127}

Bug: chromium:1334484
Change-Id: I165269d6c1b001b516f10ae3716ffb57b675ab39
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3705378
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Owners-Override: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81130}

Empty blocks were skipped when performing register merges (since they
don't have a state), but we were still doing phi value injection only
when visiting the empty block. This meant that empty blocks have
inconsistent register state with the nodes they are trying to use.

Fix this by removing the skipping code, and adding a register merge
state to empty blocks.

Bug: v8:7700
Change-Id: I305b1474c1f956c5c5775c62e3cd1d0c70b5cfdc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3698553Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81129}

Bug: v8:7748
Change-Id: I65dbb496302045820063bd0f4f9ea054e6a645bd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695580Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81128}

This CL adds a new boolean flag on the Debugger.setScriptSource CDP
method that gets piped all the way through to the live-edit mechanism.
The new flag enables live-editing of the top-most function while
paused.

The CL adds a couple of tests that cover the new core use cases for
this flag.

R=jarin@chromium.org

Bug: chromium:1334484
Change-Id: I12fec591b2b6550d89748714620e629548e1b9c1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695354Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81127}

This reverts commit c14b3e4d.

Reason for revert: https://crbug.com/1335195

Original change's description:
> [regalloc] add hint for operands in gap moves.
>
> To eliminate unnecessary move instructions from register to fixed register. We check the fixed register hint for operands in move gaps
> when building LiveRanges. If a to_operand has a hint_operand (with fixed register), then set the hint_operand for from_operand too. This can avoid the register allocator ignore hint information about fixed register.
>
> Bug: v8:12909
> Change-Id: I17f9afa484ee08de8ac1ab42945caba2c362fc9e
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3669019
> Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
> Commit-Queue: Jialu Zhang <jialu.zhang@intel.com>
> Cr-Commit-Position: refs/heads/main@{#80844}

Bug: v8:12909
Change-Id: Iedba9244a75074e448c5e85880cc202866b91e71
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702335
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#81126}

This is a reland of commit dec4bb06

Original change's description:
> [turbofan] Support additional operators in SLVerifier
>
> This CL extends SimplifiedLoweringVerifier by a few additional operators.
>
> It fixes the missing type on a LoadElement node generated during
> js-typed-lowering, that was detected by the verifier.
>
> Bug: v8:12619
> Change-Id: I14e3ece15f6a90e6906c140696dcd2e6b74a2527
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3557510
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#80014}

Bug: v8:12619
Change-Id: If3cb6efe2005c41118f37b39b0209195b3e63a38
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702330Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Auto-Submit: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81125}

A TracedReference handle may be moved into a slot of an already
processed object, requiring a write barrier.

Bug: chromium:1322114
Change-Id: I9c1018422df896c5753b213ebc4a7a7df79c0d80
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3703840
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81124}

Rolling v8/third_party/google_benchmark/src: https://chromium.googlesource.com/external/github.com/google/benchmark/+log/920fa14..2365c4a

add multiple OSes to bazel workflow (#1412) (Dominic Hamon)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/2365c4a

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

Change-Id: I3b362c41aa806cb5e99e6a687cf80174365bec7e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702970
Bot-Commit: 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/main@{#81123}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/eb941d4..4be7c7b

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/ba0a827..d854027

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/6fbb744..b603090

Rolling v8/third_party/fuchsia-sdk/sdk: version:8.20220612.1.1..version:8.20220613.2.1

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/2b3af06..30892fa

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

Change-Id: I7f58146525115bdcf9d7806dfb9e06e8903deb0c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702969
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#81122}

Bug: v8:12940
Change-Id: I2e12ba483f641a27fab623ae4d4f652aa8cdedff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3699226Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Yolanda Chen <yolanda.chen@intel.com>
Cr-Commit-Position: refs/heads/main@{#81121}

In previous refactoring, the CSS files are moved to subdirectory css

Change-Id: I38e05ae1a9e56f36d5bd25131e605a93cfdb61f9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3701958
Commit-Queue: Jie Pan <jie.pan@intel.com>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81120}

Bug: v8:12868
Change-Id: Icdf4a04d55c59613e305ec8258485fd69b57e90a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702258Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Andy Wingo <wingo@igalia.com>
Cr-Commit-Position: refs/heads/main@{#81119}

Bug: v8:12868
Change-Id: I81f175057ec0d40dbd1e9fd329a0e37ef3ade814
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702332Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Andy Wingo <wingo@igalia.com>
Cr-Commit-Position: refs/heads/main@{#81118}

Bug: chromium:1218005
Change-Id: Ie7c100193848544e661ee62f88be4601426a4e18
Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702251Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81117}

Concurrent sparkplug adds functions to batches and sends those batches
off for compilation, but doesn't note what functions are currently
compiling. This means that we can spawn multiple compilation jobs for a
function, most of which will be throw away.

Add a bit to SharedFunctionInfo to note whether concurrent compilation
has been started for it.

Change-Id: Ifa442481611044713b2893488387e97f071e408a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702336
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81116}

This should help us with various DCHECKs, maybe even with actual
branches.

Bug: v8:7700
Change-Id: I6317635b59ba9ed1ee1146f6da31abf7eb099c75
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3700072
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81115}

The CL aims to improve write-barrier filtering and thereby reduce the
current regressions. With 8MB AgeTable the card size becomes 512 bytes.
The memory overhead of the 8MB AgeTable is 0.2%.

Bug: chromium:1029379
Change-Id: I86f51361b9b9f0a1c22a1deef0b0540d1d9808bc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3700079Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Auto-Submit: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81114}

This should fix unexpected regressions which occur after builtins
modifications.

This CL affects alignment of embedded builtins on all configurations
and Code header size only for non-pointer compression configuration.

Bug: v8:11708
Change-Id: I8058197c5b768a699e7f52446424013e86203b57
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3700392
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81113}

This is a reland of commit 7787ed20

Updates since original: specified that cctest sources depend on
generated files from the inspector.

Original change's description:
> Build cctest while building V8
>
> I noticed in a recent build that C++ files from cctest didn't start
> compiling until after several slow non-parallel tasks such as running
> mksnapshot and linking v8_for_testing. I don't see any reason that
> cctest sources should wait for those tasks, so in this change I propose
> adjusting the build dependencies for more parallelism.
>
> Change-Id: I2472117c8555ac397fa1232954c8b699d6429d38
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3690170
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
> Cr-Commit-Position: refs/heads/main@{#80976}

Change-Id: I9f507c3c07bda1638b81de4b1ac82afda1168999
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3699405Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81112}

This is a reland of commit c2f25454.
We revert to using x17 for the call target, to be compliant with CFI.
Some comments are extended to point to that requirement.

Original change's description:
> Avoid use of x18 register on arm64
>
> This causes crashes on Windows, as x18 is the "platform register",
> holding a pointer to thread-local storage.
>
> R=jkummerow@chromium.org
> CC=seth.brenith@microsoft.com
>
> Bug: v8:12959
> Change-Id: I20b8bee145d4ab3a40d8d140d98572df8300251c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695569
> Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81090}

Bug: v8:12959
Change-Id: If4ead8f7a7aece756cef7d32bb98d7d33dfe4911
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3702331Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81111}

This is a reland of commit c8c17619

This CL includes:

- crrev.com/c/3679846 Add condition use_ic to the removing the optimized OSR code logic
- crrev.com/c/3686589 Add out of bytecode array to break condition of removing OSR code cache logic
- Add JumpLoop nesting level 0 to break condition of removing OSR code cache logic
- Change to use Deoptimizer::DeoptimizeFunction() to deoptimize OSR code

Original change's description:
> [compiler] Remove the optimized OSR code if deoptimizing at inside of loop
>
> If the optimized code is deoptimized and the deoptimized exit offset is
> inside of the optimized OSR code related loop, the optimized OSR code is
> also out of date, remove the optimized OSR code, it will avoid hit the
> optimized OSR code and soon later deoptimization of the optimized OSR
> code.
> This CL will reduce deoptimization. E.g. Deoptimization of JetStream2
> case navier-stokes function addFields is reduced from twice to once.
>
> Change-Id: I5bbf3039e916c3736b5b967d1f36b6ea90cfd40b
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3648219
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Tao Pan <tao.pan@intel.com>
> Cr-Commit-Position: refs/heads/main@{#80826}

Bug: chromium:1330444
Change-Id: I97a466ddfa764438b45f33c6ae33cb921d57278d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3690451Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Tao Pan <tao.pan@intel.com>
Cr-Commit-Position: refs/heads/main@{#81110}

A few more fixes for visiting bytecodes that are known to be dead:

  * Change JumpLoop dead frame merging to remove the loop predecessor,
    by moving the loop predecessor to be the last in the list and
    allowing it to be dropped the same way as other predecessors.
  * Remove the bytecode walk in EmitUnconditionalDeopt, opting instead
    to check for null current_block in the real bytecode visitor. This
    allows us to handle the case where the start of a basic block is
    dead, but there's no fallthrough into it, so it wouldn't be visited
    by the loop in EmitUnconditionalDeopt.

Bug: v8:7700
Change-Id: I7cf1a54c49a2affc0363c1a0919bb3d427f83f5c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3700070
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81109}