Rolling v8/third_party/aemu-linux-x64: 17S2VQDv3RUfAsW4s0c53HyKMVsd-i_1DocJS0aHWu4C..bOp0PE8R9VUQxsHclvuA10P4iOaWjRRpsK8ZQKtAZCAC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/fb69904..8ec776f

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/6550ec9..c1fd44b

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

Change-Id: I990498d25f3d74d37050a37ab98be3d8bb68d722
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171721Reviewed-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/main@{#76950}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/ae8cb5d..1037128

Rolling v8/third_party/abseil-cpp: https://chromium.googlesource.com/chromium/src/third_party/abseil-cpp/+log/6569bfc..48418f3

Rolling v8/third_party/android_sdk/public: ZT3JmI6GMG4YVcZ1OtECRVMOLLJAWAdPbi-OclubJLMC..yODElY4RdHopNEfpOnqjRcrpa6JMzbhYYqGD53-DjJwC

Rolling v8/third_party/android_sdk/public: qi_k82nm6j9nz4dQosOoqXew4_TFAy8rcGOHDLptx1sC..g7n_-r6yJd_SGRklujGB1wEt8iyr77FZTUJVS9w6O34C

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/fa2350f..fb69904

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/cf9d643..6550ec9

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/6f44cf5..7ea32d7

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

Change-Id: Id62cd6c728dcc4bfc422632afdf47cef3db2bee1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171717Reviewed-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/main@{#76949}

At least for the initial rollout, we will gracefully handle cage
reservation failures by shrinking the size of the cage until the
reservation succeeds or the size drops below the mimimum cage size. This
will allow collecting statistics on how often cage reservation failures
occur in practice for different cage sizes, which will in turn influence
the decision on how to handle them in the future.

Bug: chromium:1218005
Change-Id: Ica58951ba51ac01bc2c387b34dfc8d9051ed4d75
Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168347Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76948}

.. for more efficient access to builtins from generated code.

Root-relative accesses tend to be faster and produce more compact
code when the root-relative offset is small. IsolateData contains
a few large tables (roots, external references, builtins), resulting
in very large offsets in general.

This CL starts by splitting the builtin table into tiers: tier 0
is a minimal set of perf-critical builtins that should be cheap to
access. The offset to tier 0 builtins is guaranteed to be small.

The full builtin table also remains in IsolateData for occasions in
which we need to lookup builtins by index.

In future work, we can also split external references and roots into
tiers.

On x64, this reduces deopt exit sizes from 7 to 4 bytes and from 12
to 9 bytes (dynamic map checks / EagerWithResume deopts).

Bug: v8:12203,v8:8661
Change-Id: I5a9ed22b0e00682aca1abcf15892ae1458dbdd70
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3162142
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76947}

This is a reland of 5dde281c,
after also fixing the ic-migrated-... test, in which an object died
too early.

Original change's description:
> [compiler] Fix a few test flakes and reenable the tests
>
> Bug: v8:12173
> Change-Id: I2983be9133f8ff4d1740e8eba05a3c29d603dfc3
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168270
> Auto-Submit: Georg Neis <neis@chromium.org>
> Reviewed-by: Maya Lekova <mslekova@chromium.org>
> Commit-Queue: Maya Lekova <mslekova@chromium.org>
> Commit-Queue: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76939}

Bug: v8:12173
Change-Id: If385e5c826b8470ef67f12705c5171f330f6cd57
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171353
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76946}

When dst != lhs, we moved lhs to dst, but dst can be == rhs, so we would
overwrite rhs, and end up comparing lhs with itself, always returning
false. We handle the different aliasing cases in the macro-assembler
function I64x2GtS, to simplify the checks in Liftoff a little bit.
TurboFan does not need to change as it will require dst == lhs when AVX
is not supported.

Bug: v8:12237
Change-Id: Icefa6eb79083c003e93dbbd11ccc419aae4b15d3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3169312Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76945}

We move some instructions from the test that just disassembles them, to
the test that checks for expected output.

Bug: v8:12207
Change-Id: I913237427d795ed44539c7294ebbe69330c41dfa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3163278Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76944}

This is similar to x64, these SSE operations take 2 operands, and their
AVX version also takes 2 operands.

Bug: v8:11879
Change-Id: I98885a7b69f3b61ee89e713b5d7cf2f4fd2406db
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3169315
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76943}

Copy the initial allowlist (and banned list) from relevant entries in
the Chromium guidelines.

Change-Id: Id22566ffe97e36f0c139d05218e94448f10a790f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168281
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76942}

This reverts commit 5dde281c.

Reason for revert: Test still fails on gc-stress: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac64%20GC%20Stress/19821/overview

Original change's description:
> [compiler] Fix a few test flakes and reenable the tests
>
> Bug: v8:12173
> Change-Id: I2983be9133f8ff4d1740e8eba05a3c29d603dfc3
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168270
> Auto-Submit: Georg Neis <neis@chromium.org>
> Reviewed-by: Maya Lekova <mslekova@chromium.org>
> Commit-Queue: Maya Lekova <mslekova@chromium.org>
> Commit-Queue: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76939}

Bug: v8:12173
Change-Id: I402982540d6a06dc1ca8bbd87ae5f58a000f0c1a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171352
Auto-Submit: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: 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/main@{#76941}

Change-Id: I296b7e2012bc8b1a141a382793b977e67ebf2a97
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168343Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76940}

Bug: v8:12173
Change-Id: I2983be9133f8ff4d1740e8eba05a3c29d603dfc3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168270
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76939}

No-Try: true
Bug: v8:11006
Change-Id: Ie2758849fcb8b19ae34289d3e762094b062f2a5c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168644Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76938}

See the issue for details.

Bug: chromium:1237821
Change-Id: I847229c3d0a5435f956c97a621991915aafdd4e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171156Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76937}

Bug: chromium:1250660, v8:7790
Change-Id: If96ab8879f54549b3b3d92ef2b1c13344dca17b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171154
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76936}

We add table.copy operation to the fuzzed module.

Bug: v8:11954
Change-Id: I7f584335b977ae9bf46f13cb8ddacdcce0824291
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168275Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Rakhim Khismet <khismet@google.com>
Cr-Commit-Position: refs/heads/main@{#76935}

Make GetValueType to generate only function signatures
to avoid default values in new_object.

Bug: v8:11954
Change-Id: Ia6ebdde0a9c10c56afef29d6db3b3266816210e3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3158222Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Rakhim Khismet <khismet@google.com>
Cr-Commit-Position: refs/heads/main@{#76934}

When loading the code object entry, we can do a little bit of strength
reduction to avoid a sign extend, `tst` and `lsl` instruction,
especially given Code::IsOffHeapTrampoline::kMask is a single-bit mask
we can use `tbz`.

Change-Id: I89fcd64cb517bf1ba8b43c05e9a784a9237889d8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168274Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Pierre Langlois <pierre.langlois@arm.com>
Cr-Commit-Position: refs/heads/main@{#76933}

... and move methods that use XXX::cast() there.
This will untangle the include cycle that'll happen in a follow-up CLs.

Bug: v8:11880
Change-Id: Iba46bc9b0e0df9530197f57d0469456eb9006e66
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3164456Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76932}

We add support for array.get, array.set and array.len operation to the fuzzed module.

Bug: v8:11954
Change-Id: Ic8fd89ec7f7f31e70a40bad831567e50ae49f668
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168624Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Maria Tîmbur <mtimbur@google.com>
Cr-Commit-Position: refs/heads/main@{#76931}

Change-Id: Ie07e626900f8fc8218944be2b33da6fc109adf92
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168273
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76930}

This is a reland of b7355768
Issue was fixed with https://crrev.com/c/3165058

Original change's description:
> [x64][ia32] Activate Argument Count Consistency
>
> Activate argument count consistency (receiver is always included in
> JS argument count) for x64 and ia32.
>
> Bug: v8:11112
> Change-Id: If60000b6566846c84f1042473d25d79bf5c86a9d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3160198
> Auto-Submit: Patrick Thier <pthier@chromium.org>
> Reviewed-by: Victor Gomes <victorgomes@chromium.org>
> Commit-Queue: Victor Gomes <victorgomes@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76838}

Bug: v8:11112
Change-Id: I7968525dce2d36f94b7c8d066b0729969c55c6fc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171151Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76929}

This means we don't need to copy over properties, and accessors stay in
place similar to when we deserialize a custom snapshot.

This slightly changes the semantics of Context::New, so let's see
whether someone depends on this behaviour. We may need to revert if so
(hopefully until we can update the embedder).


Bug: v8:12113
Change-Id: I8325480a00bab5b2bb6ea42274e295b0d4dfc85c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3162143
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76928}

Bug: v8:7748
Change-Id: I5b6d8bf0b6dbf88c4762f4d61fb468c3e2898201
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168621Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76927}

This is a reland of db95e20b

Changes compared to original:
Only invoke std::memcpy if source is not null.

Original change's description:
> [wasm] Introduce CallInfo in WasmGraphBuildingInterface
>
> The DoCall and DoReturnCall functions implement function calls in
> WasmGraphBuilderInterface. These functions need different arguments
> based on if the call is direct, indirect or call_ref. Right now, these
> arguments are misnamed in some cases, and callers have to pass default
> values for unused arguments.
> This CL tidies up the arguments of these functions by introducing a
> CallInfo class which provides different constructors based on the type
> of the call, where only the required arguments need to be passed.
>
> Change-Id: Ie03de6d3cf253a9baa0369f569589bb91d0b1866
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3162606
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76910}

Change-Id: I85cb5479f013e6625adce421d011c0b2ae073260
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168626Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76926}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/28f08ad..ae8cb5d

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

Change-Id: I1e7b57b7120906e6a1c789a428e199944a0be7dd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168365Reviewed-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/main@{#76925}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/67d9786..28f08ad

Rolling v8/third_party/aemu-linux-x64: 4_W8oYEfH2jwjpXXJX32HUtITINfNQfevdEMi6HVUm8C..17S2VQDv3RUfAsW4s0c53HyKMVsd-i_1DocJS0aHWu4C

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

Change-Id: I39375c01a3ce17bc1d03c0a9563dd6efa27ffb0a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168363Reviewed-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/main@{#76924}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/48f708c..67d9786

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/6b072fa..fa2350f

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/9cba73f..cf9d643

Rolling v8/third_party/instrumented_libraries: https://chromium.googlesource.com/chromium/src/third_party/instrumented_libraries/+log/0faacf9..eb740e9

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/c8d8b3e..6f44cf5

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

Change-Id: I9bcc20f2e6a23805d50d85a667a3c537ce6774b9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3170131Reviewed-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/main@{#76923}

https://chromium.googlesource.com/external/github.com/tc39/test262/+log/66a3c3aa..650e7ad

Bug: v8:7834, v8:12168
Change-Id: I6555baf3a4ec317ee5bca1e159d0ed215d1ef110
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3167031Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76922}

Bug: v8:11589
Change-Id: Id1c068edb2bf0849ad99ecdcd42ce97bcba013d2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3163281Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76921}

No algorithmic changes, just cleaning up.

Bug: v8:11515
Change-Id: Ib173713a1191d443faf2aebbcc31ff7608823436
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3151957Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76920}

The recent change in the delegate semantics was incorrectly implemented
in the interpreter. It only checked that the first opcode of the target
block is a 'try': we also need to skip try blocks when we are already in
their 'catch' or 'catch_all' sub-block.
Use the exception_stack instead, since it already only contains indices
of try blocks that haven't reached their handlers yet.

R=clemensb@chromium.org

Bug: chromium:1249306
Change-Id: I15746b4bfabf3dcf04cfe0f2ad438c573cce65e7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168622
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76919}

SIMD is now shipped, so we don't need to pass the experimental wasm simd
flag.

Change-Id: I54090cec575da5eecfd2bf9a455ac5d0ef3f146e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3169313Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76918}

When the input to F64x2PromoteLowF32x4 is a S128Load64Zero, we can skip
the load + promote, and promote directly with a memory operand. The
tricky bit here is that on systems that rely on OOB trap handling, the
load is not eliminatable, so we always visit the S128Load64Zero, even
though after instruction-selector pattern-matching, it is unused. We
mark it as defined to skip visiting it, only if we matched it.

Bug: v8:12189
Change-Id: I0a805a3fce65c56ec52082b3625e1712ea1ee7cf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3154347Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76917}

This is a reland of b06f3832

s/DEFINE_READONLY_BOOL/DEFINE_BOOL_READONLY/

Original change's description:
> [flag] Disable W^X behind --future
>
> Measure the impact of W^X on --future bots
>
> Change-Id: I6f60cc835471fa62ec0871101eca5d3022ece519
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168277
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Auto-Submit: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76908}

Cq-Include-Trybots: luci.v8.try:v8_mac_arm64_dbg_ng,v8_mac_arm64_compile_dbg
Change-Id: Iae6da3a64d19d3c03d565cc94f765bc41e36bfb1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168620
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76916}

With this CL it is guaranteed that every time after AllocatedStackSpace
allocates a full page, this page also gets touched.

Background:

On Windows it is required to touch every new memory page on the stack
before adding another memory page. This is implemented in
{AllocateStackSpace}. This was implemented so far by repeatedly
allocating a new page, followed by touching the new page. The last
allocation, which may has up to the size of a page, did not get touched
anymore, with the assumption that allocated stack space will be used
before new stack space gets allocated. However, this assumption is
wrong. In Liftoff, the whole stack space that is needed for a function
gets allocated in the beginning of the function. This stack space may
only be used for spills though, and the spilling may only happen after
the first function call in the function. In this case the callee
function will write to its own stack frame before the stack frame of the
caller gets used.

As written above, the last allocation does not get touched anymore. In
the case that this is a full memory page, this can mean that a full
memory page gets skipped without getting touched. With this CL it is
guaranteed that the last allocation is always smaller than one page, and
therefore it is impossible to skip a full page without touching it as
long as there are no two calls to {AllocateStackSpace} without a {push}
in between.


Bug: v8:12063
Change-Id: If0bb41212e882beb926aac538001b02f179fc03e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168276
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76915}

Change-Id: I8edbc9f3acada00d40b8007c880dfb3d14491744
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168356
Commit-Queue: Junliang Yan <junyan@redhat.com>
Reviewed-by: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#76914}

Change base::Optional to an alias of absl::optional. Eventually we
should remove it entirely.

Bug: v8:11006
Change-Id: I687d44cc7e7cd0a49a84bcc207231eb6808eef2d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2476318
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76913}

Bug: v8:7748
Change-Id: Ic25e7be11cb1a06b160c1abe6d004a4c74b88b49
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3167493
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76912}

This reverts commit db95e20b.

Reason for revert: UBSan failures https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20UBSan/18300/overview

Original change's description:
> [wasm] Introduce CallInfo in WasmGraphBuildingInterface
>
> The DoCall and DoReturnCall functions implement function calls in
> WasmGraphBuilderInterface. These functions need different arguments
> based on if the call is direct, indirect or call_ref. Right now, these
> arguments are misnamed in some cases, and callers have to pass default
> values for unused arguments.
> This CL tidies up the arguments of these functions by introducing a
> CallInfo class which provides different constructors based on the type
> of the call, where only the required arguments need to be passed.
>
> Change-Id: Ie03de6d3cf253a9baa0369f569589bb91d0b1866
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3162606
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76910}

Change-Id: Ie0b288b3cbb66de4858fb7fbf1bc992518e637d0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168284
Auto-Submit: Leszek Swirski <leszeks@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/main@{#76911}