... /objects/concurrent-js-array-unittest.

Bug: v8:12781
Change-Id: Ie23432df7ffa785f96684060f5f2df3716713fd6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3600549Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#80115}

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}

Result of `and` is stored in cr0.

Change-Id: I113ff7ceb9412d2f1f8ffdd58397123603b5818a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3600550Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#80113}

This CL extends GetIterator to check whether the result of
calling @@iterator is JSReceiver and throw SymbolIteratorInvalid
if it's not JSReceiver.

GetIterator bytecode involves 3 steps now:
- method = GetMethod(obj, @@iterator)
- iterator = Call(method, obj)
- if(!IsJSReceiver(iterator)) throw SymbolIteratorInvalid [Added]

New Builtin: CallIteratorWithFeedbackLazyDeoptContinuation, which
is used when lazy deopt is triggered by call @@iterator.

Related spec: https://tc39.es/ecma262/#sec-getiterator.
Related doc: https://docs.google.com/document/d/1s67HC2f-4zxA_s1Bmm7dfwMFv_KDUfMiWIKkNSeQNKw/edit#heading=h.kdzv8mq4g4ks.

Bug: v8:9489
Change-Id: I17952c0f3e24e1e600ee1348809fb188c2c70f8e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3563447Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#80112}

There is currently a bug in docker where fstat may not
return the correct device id and as a result a check under
`OS::RemapPages, stat_buf.st_dev != enclosing_region.dev`
fails, details on the bug:
https://github.com/moby/moby/issues/43512

Platform specific page sizes are also defined for kMaxPageSize
to fix compilation errors.

Change-Id: I026609329aa6432eda4f1880a0f586c0c2162461
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3601211Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#80111}

This reverts commit 267b962d.

Reason for revert: Flake turned out to not be reproducible: https://ci.chromium.org/ui/p/v8/builders/try.triggered/v8_flako/b8816185753319345009/overview

Original change's description:
> Revert "[base/platform] Simplify fast TLS on macOS"
>
> This reverts commit 9cdee4f4.
>
> Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20-%20debug/38658/overview
>
> Original change's description:
> > [base/platform] Simplify fast TLS on macOS
> >
> > Since the TLS offset is constant across all supported OS releases, we
> > no longer need to adjust it, nor to read it at runtime. This also aligns
> > the code in V8 with what is done in Chromium.
> >
> > Change-Id: I0f3c54da39a776406083c897de888f06c61852b8
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599481
> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> > Commit-Queue: Benoit Lize <lizeb@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#80106}
>
> Change-Id: Ie6371c2ad12ed6f63be51b819083a7c0c4e22751
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3602502
> Auto-Submit: Tobias Tebbi <tebbi@chromium.org>
> 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@{#80108}

Change-Id: I6c50a568751a3892b82fe2dce6fe940fce293b3d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3602503
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@{#80110}

Fixes https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20-%20gcov%20coverage/29098/overview
and https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20gcc%20-%20debug%20builder/1389/overview

Bug: v8:7700
Change-Id: I90717b9644b75cef28656893d37aa57e5f03e2fe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599478
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80109}

This reverts commit 9cdee4f4.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20-%20debug/38658/overview

Original change's description:
> [base/platform] Simplify fast TLS on macOS
>
> Since the TLS offset is constant across all supported OS releases, we
> no longer need to adjust it, nor to read it at runtime. This also aligns
> the code in V8 with what is done in Chromium.
>
> Change-Id: I0f3c54da39a776406083c897de888f06c61852b8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599481
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Benoit Lize <lizeb@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#80106}

Change-Id: Ie6371c2ad12ed6f63be51b819083a7c0c4e22751
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3602502
Auto-Submit: Tobias Tebbi <tebbi@chromium.org>
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@{#80108}

This reverts commit 6e6c1bf6.

Reason for revert: breaks Chromium roll: https://ci.chromium.org/ui/p/chromium/builders/try/linux-lacros-rel/515150/overview

Original change's description:
> Update V8 DEPS.
>
> Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/28bea73..7ee892a
>
> Rolling v8/buildtools/linux64: git_revision:1cdd270be9803dbfcdd0343f6104ad4dc30c38ce..git_revision:0d6d1310d005cb9bace909cb8352e83113c6fc51
>
> Rolling v8/third_party/android_platform: https://chromium.googlesource.com/chromium/src/third_party/android_platform/+log/2760db4..36c1580
>
> Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/960c656..43f0426
>
> Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/89ccf4a..5e49eda
>
> Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/a0906c7..563043f
>
> Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/4dd2e32..ea2f00c
>
> R=​v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com
>
> Change-Id: I6295d2ca2cc0f8a738a3ade212da52d74d203c67
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3600836
> 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@{#80097}

Change-Id: I4cd78dddbb477773ea80f16c4bfa0e0ecabff7e4
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3598888
Auto-Submit: Tobias Tebbi <tebbi@chromium.org>
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@{#80107}

Since the TLS offset is constant across all supported OS releases, we
no longer need to adjust it, nor to read it at runtime. This also aligns
the code in V8 with what is done in Chromium.

Change-Id: I0f3c54da39a776406083c897de888f06c61852b8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599481Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Benoit Lize <lizeb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80106}

Bazel bot is red due to ICU problem.
https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20-%20bazel%20-%20builder

Temporarily compiling V8 without ICU until the problem is solved.

Change-Id: I98b9ce9ca445d100896c43ae24d5fa73463cdfbc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3598884
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80105}

... /objects/concurrent-feedback-vector-unittest.

Bug: v8:12781
Change-Id: Ib294adbf57d77fd6fff2801b35fd53cffd0d46c3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3600509Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#80104}

should using scratch register to hold intermediate result.

Change-Id: I08e2236fd0a491398ffaa15c4fd9ae3d0e9ef535
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3596441Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#80103}

Port commit 4ae5a813

Change-Id: I194b424996d9f2427272fdd0510b6a464c4e07d0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3602233
Auto-Submit: Yu Liu <liuyu@loongson.cn>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#80102}

... /objects/concurrent-string-unittest.

- Add AsciiToTwoByteString to convert ascii string to
two byte string.

Bug: v8:12781
Change-Id: Icc2f745846fa10ec940085eab0ef022d7c277e0a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3600552Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#80101}

Port f8fddd6b

v8: 12161
Change-Id: Ied27490a457ff1e4fcc9e80057c5d39c4c5c08cc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3601876Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Yu Liu <liuyu@loongson.cn>
Auto-Submit: Yu Liu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#80100}

Bug: v8:7700
Change-Id: I61246df3a13f8beb91979591455b3d63357ed220
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599477
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80099}

Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/d2858cb..e5b846b

Cherrypick PR 2060 to fix DateIntervalFormat (Frank Tang)
https://chromium.googlesource.com/chromium/deps/icu/+/e5b846b

Enable WASM cross-compilation by using current_cpu correctly (Harry Terkelsen)
https://chromium.googlesource.com/chromium/deps/icu/+/f43d565

Remove obsoleted android_(small|extra) build script (Frank Tang)
https://chromium.googlesource.com/chromium/deps/icu/+/0a50280

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

Change-Id: I5b19727b85316c56e7b19d6b73c4206642de56af
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3600838
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@{#80098}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/28bea73..7ee892a

Rolling v8/buildtools/linux64: git_revision:1cdd270be9803dbfcdd0343f6104ad4dc30c38ce..git_revision:0d6d1310d005cb9bace909cb8352e83113c6fc51

Rolling v8/third_party/android_platform: https://chromium.googlesource.com/chromium/src/third_party/android_platform/+log/2760db4..36c1580

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/960c656..43f0426

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/89ccf4a..5e49eda

Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/a0906c7..563043f

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/4dd2e32..ea2f00c

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

Change-Id: I6295d2ca2cc0f8a738a3ade212da52d74d203c67
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3600836
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@{#80097}

Spec Text:
https://tc39.es/proposal-temporal/#sec-get-temporal.zoneddatetime.prototype.offset
https://tc39.es/proposal-temporal/#sec-get-temporal.zoneddatetime.prototype.offsetnanoseconds

Bug: v8:11544
Change-Id: Ia88d96b038117a8e528ff9d0cdb9a07fb7cbcda5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3385606Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80096}

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}

Normally, taking a heap snapshot in the near heap limit would
result in a full GC, then the overhead of the promotions would
cause another invocation of the heap limit callback and it can
raise the limit in the second call to avoid an OOM, so we test
that the callback can indeed raise the limit this way in this
case. When there is only one generation, however, there would
not be the overhead of promotions so the callback may not be
triggered again during the generation of the heap snapshot.
In that case we only need to check that the callback is called
and it can perform GC-triggering operations jsut fine there.

Bug: v8:12815
Change-Id: If244417624b56bc068aed480fb3391d26c19005a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3600357Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Cr-Commit-Position: refs/heads/main@{#80094}

Bug: v8:12161
Change-Id: I65029217e99dd2c59af295b2f02c697415151a59
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3600376Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#80093}

Bug: v8:12822
Change-Id: Idc8225640e132d175d2c06b530d77fcda7362b55
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599486
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80092}

... unittests/objects/concurrent-descriptor-array-unittest.

Bug: v8:12781
Change-Id: Iad4e99e256745d2874e6b03c2fe1c91b5599ab30
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3596443Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#80091}

Change-Id: I4ffcf9792501928e9e59d702c5855b288470cff4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599485Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80090}

In the simplest way possible.

Bug: v8:7700
Change-Id: I155aaf85192b75c89617820d6f127a2ae04c7d9b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599484
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80089}

Additionally, pass the JSFunctionRef directly for inlined functions'
compilation units.

Bug: v8:7700
Change-Id: Ibdc738c8a9790f8ac45e6a0fd55facdf638562f9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599480
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80088}

Bug: v8:7700
Change-Id: I5155fc665f1214dda390fc6d1476ecf1f137166e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599483
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80087}

... /utils/bit-vector-unittest.

Bug: v8:12781
Change-Id: I26b9c2b8a911b513d65d54476b78a0bbac7aa78f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3596445Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#80086}

This reverts commit 2d394aca.

Concurrrent marking for v8::TracedReference requires a single bit in
global handles to be written concurrently. While no other bits require
concurrent access, initialization still needs to properly publish the
the bitfield. Publishing generally allows all bits to be read on any
thread which is already used for some.

The CL introduces acq/rel semantics on the actual object pointer for
publishing the state.

Bug: chromium:1315498, v8:12600
Change-Id: Ic50c7c0b647b8b609bcd899f6c9f73bee80303da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3596125Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80085}

... /compiler/compiler-unittest.

- Add PrintExtension for adding print function.
- Add WithPrintExtensionMixin to register
PrintExtension.
- Add StreamerThread to run a ScriptStreamingTask
in a separate thread.

Bug: v8:12781
Change-Id: I9d3324f3a8dcf00b5b121db6007c9a3cb2972313
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3596442Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#80084}

Fixes the iteration after emitting an unconditional deopt to kill all
Jumps along the way, not just ones preceeding a merge point. This fixes
several issues:

  a) That Jump may be to a not yet created merge point, in which case we
     were getting a nullptr deref.
  b) Not-yet created merge points would not be detected as merge points,
     so we'd skip over them and miss killing the control node before
     them.
  c) We weren't reducing predecessor counts, so even after fixing the
     nullptr deref above, merge states created later would have the wrong
     predecessor count.

Now, we check bytecode targets (including fallthrough for non-returning
bytecodes) on for every bytecode, and skip over both not-yet created
merges, and loop merges that have no predecessors other than the loop
jump itself.

As part of this, the dead predecessor merging is changed; instead of
setting the predecessor to nullptr, we drop the predecessor count by
one, and trim any Phis' input counts.

Bug: v8:7700
Change-Id: I904c82df7c5dd44d7637e07f6750b35e7e219284
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599470Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80083}

When moving forward and optimizing internals, these APIs cannot be
trusted anymore as their semantics are tangled to the current
implementation.

Bug: v8:12819
Change-Id: I0e3370724307a420ee42fed8070b55542be9400d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599475
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80082}

Change-Id: I1ceb1038c91e43299f4f4b35da684566ecbbef7f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3596911Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#80081}

Adds LogFunctionCompilation as a static member of Compiler.
Calls the log function after installing the code on the main thread.

Bug: v8:12054, v8:12818
Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_rel_ng
Change-Id: I664b2c890292a207720efe311b7c55757c7c6470
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599472Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80080}

Bug: chromium:1316121, v8:12612
Change-Id: I5b32211f01a97a6aaee52f0285d62a516381f43c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3592954Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80079}

Removes V8-internal support for resurrecting finalizers in the garbage
collector.

The APIs have already been removed in http://crrev.com/c/3596174

Bug: v8:12672
Change-Id: Ia507e74659b61a2c8c08281d7f395aee51e3fe17
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584115Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80078}

Add a --maglev-inlining flag, and add some half-baked support for
inlining functions when there is call feedback.

When the flag is enabled and there is call feedback, we create a nested
MaglevGraphBuilder for the current graph, and pause building the graph
of the outer function. We manually set up its prologue to set up its
frame with the arguments pass into the call, build the body with the
nested graph builder. This inner builder knows that it is building an
inlined function, and all Return bytecodes will instead emit a Jump to a
single merge block at the end of the function, where execution of the
outer function can resume.

These inner function basic blocks are wired into the outer graph with
new JumpToInline and JumpFromInline control nodes. The idea is that
subsequent passes will know what the inline function is, and will use
these to manage the function stack (particularly for codegen and
especially deopts).

Bug: v8:7700
Change-Id: I4e9b153f8cf4d06c56e7be6365e7a18b86a773c0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585958
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80077}

Bug: v8:7700
Change-Id: Ieecdd66e7e540ad27aaa05cf13f270e42377b15e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3599471
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80076}