Bug: v8:11111
Change-Id: I6a86dd1313a7bfb72024e9857a0c18dd6c83fe3c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3160518
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76980}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/1037128..66bad00

Rolling v8/third_party/aemu-linux-x64: bOp0PE8R9VUQxsHclvuA10P4iOaWjRRpsK8ZQKtAZCAC..UnrNXrNKJtnUOqrH_BbjXgZ_Ns1v0PZ9WNtFgoHrQZwC

Rolling v8/third_party/android_sdk/public: yODElY4RdHopNEfpOnqjRcrpa6JMzbhYYqGD53-DjJwC..AuYa11pULKT8AI14_owabJrkZoRGuovL-nvwmiONlYEC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/8ec776f..25814bb

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/c1fd44b..eff810e

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/7ea32d7..948efd2

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

Change-Id: I9bc3a48c310c9364a3cd2e24e1fdc6fcd5e6d934
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172719Reviewed-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@{#76979}

Bug: v8:12018, v8:12163
Change-Id: I87f779b4a355fa0638885db88fd0ebff0f930443
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3141034
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76978}

DISALLOW_COPY_AND_ASSIGN is no longer in our codebase, and the compilers
mentioned in the comments are (probably) no longer supported.

Bug: v8:12244
Change-Id: I432bd56ca3ddd870be140032f11d94ddb60ce1a9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171974Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76977}

This reverts commit f2e25f8a.

Reason for revert: Breaks GCC 8.4.0 compilation, see bug.

Original change's description:
> [base] Replace base::Optional with Abseil
>
> 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: v8:11006, v8:12252
Change-Id: I8048dee676a36551d15f25a31d1e171dae00d975
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3173672
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#76976}

Add another "#if V8_ENABLE_WEBASSEMBLY" block to fix compilation if wasm
is disabled.

TBR=jkummerow@chromium.org

Bug: v8:11974
Change-Id: If889814e16dfb51d5b78122e6957bb2c41cefe5b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172758Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76975}

Change-Id: I65c60a17c0f8fe19b49f0661b9d57b5a504abe07
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168283Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#76974}

Drive-by edit to use ASM_CODE_COMMENT for better code comments for
all the more complicated macro-assembler functions.

Also undef macros (AVX_OP et al) since they are not longer used outside
of shared-macro-assembler.

Bug: v8:11589
Change-Id: I424f27b5b742a8efb26ccef87dbffb01eae60335
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3173892Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76973}

Previously it generates a mvoq+pinsrq, now it generates a single
punpcklqdq.

punpcklqdq is smaller in code size, and also faster on most arch (latency
1, rthroughput of 1, 1 uop, uses 1 port) than pinsrq (latency 2, 2 uop,
uses 2 port) (from https://uops.info/table.html)

punpcklqdq is mean to work on int domain, and although we can't be
certain what v128.const will be used for, the movq is considered
an integer domain instruction, so we can avoid unnecessary transitions
by using punpcklqdq (instead of movddup, which is similar in perf
and code size).

Bug: v8:11033
Change-Id: Iab81168ffad84488b90ff307d440bed15c9f90a3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3169322Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76972}

This is a reland of adb6276f

Causes for previous revert was addressed by crbug.com/3140387 and
crbug.com/3163579.

Original change's description:
> Reland "cppgc: Enable checks for assignments in prefinalizers"
>
> This is a reland of edcc8ff5
>
> Cause for previous revert was addressed by crbug.com/1241773.
>
> Original change's description:
> > cppgc: Enable checks for assignments in prefinalizers
> >
> > Bug: v8:11749
> > Change-Id: Ic027f732030fb6a2befeffeca9db2eacfd0830a5
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3099953
> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> > Commit-Queue: Omer Katz <omerkatz@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#76370}
>
> Bug: v8:11749
> Change-Id: I57fc138ace002d41e54f7f70250e4d19bc9262b0
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3122153
> Auto-Submit: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Omer Katz <omerkatz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76553}

Bug: v8:11749
Change-Id: I138ca374314108f0f23e234a8fd90d15d912120d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168280Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76971}

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

Bug: v8:12207
Change-Id: Ide8954e36c6ad016150bfe45abc1717bed55eb19
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171972Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76970}

This CL exposes the size of the virtual memory cage to the embedder
through V8::GetVirtualMemoryCageSizeInBytes(). This will for example be
useful to collect metrics about the cage reservation, such as how
frequently it fails, in the future. While collecting these metrics
directly in V8 would also be possible, it would require access to an
Isolate, which is not yet available when the cage is initialized. As
such, it is easier to enable the embedder to collect these metrics.

Bug: chromium:1218005
Change-Id: Ie9c9ca7d1cd158ec024be6ab2418f50083b06d6e
Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172762Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76969}

The NowIs operator doesn't exist anymore.

R=mslekova@chromium.org

Change-Id: Id081c7e0cf5b122a77598fc0b886a2d1c09c881f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172767Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76968}

Port 06af754c

Original Message:
  .. 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).

Change-Id: I021d60b20b783da170987ffcf0327b93206f7e5d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172917Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#76967}

The shipping version was incorrect in the original CL.

R=ecmziegler@chromium.org

Bug: v8:7581
Change-Id: Ib382cdacb8f6aa80718e6917b535c026b83d88cd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172766Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76966}

The function index encoded into the serialized module is already offset
by num_imported_functions. For lazy compilation, however, we added the
number of imported functions another time, which was incorrect.

R=clemensb@chromium.org

Change-Id: I56380e21e74b4d1935ebdbab6ef8cc388de49f2c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172761
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76965}

Conditions are usually used in binary comparisons, and are named for
that purpose. When used in a unary comparison, {kEqual} means "equal to
zero" and {kUnequal} means "not equal to zero". This is noted in several
comments in {LiftoffCompiler}.

This CL introduces the alternative names {kEqualZero} and
{kNotEqualZero} to avoid the repeated comments and increase readability.

R=thibaudm@chromium.org

Bug: v8:12244
Change-Id: I720a3d91ea95a26a38a48c68161f1b0552937cd4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172763Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76964}

Change-Id: Ibb8de6e2df6eaee5413d9d6b197a9490dfa8ff07
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172756Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76963}

Change-Id: Ibcfdfa7c6f8e5c13f6f2a5098fc7fde4fa15f3c4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172757
Auto-Submit: Sathya Gunasekaran  <gsathya@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76962}

Useful for debugging errors

Change-Id: Ibab5acec4a8e927262dbc12d5d4cc4cd27ebf0ad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172754
Auto-Submit: Sathya Gunasekaran  <gsathya@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76961}

Spec tests were fixed in the meantime.

R=ecmziegler@chromium.org

Bug: v8:7581
Change-Id: If8e192ea94f9908ec469ebd5ccd876f51e4ea6f3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3167492
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76960}

No-Try: true
Bug: v8:11880
Change-Id: If16fe503a7fda39ccbec745d6c75959e7d2f5433
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172755
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76959}

Most call signatures are small enough to keep them on the stack. This CL
adds a little optimization to avoid two Zone allocations for such small
signatures (and one in the general case).

R=thibaudm@chromium.org

Change-Id: I20ea7b77bfe8f1c86f8aa66450baa3561d564de1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168279
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76958}

The fix is released now, so we can add the tests to the public repo.

R=ahaas@chromium.org

Bug: chromium:1239116
Change-Id: Ie1489f6bcd934f84222b4631921475c389f778dd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172752Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76957}

Use <iosfwd> where possible, in particular in public headers
(include/v8-*.h).

R=cbruni@chromium.org

Bug: v8:11879
Change-Id: I9d6095e6385229763d667f5064a794d67952b2b0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3160517Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76956}

Bug: chromium:1228407, chromium:1234764, chromium:1234770, chromium:1247763
Change-Id: I1e8ffaa04eeda22b71ece2f59038e5c92861fde0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172751
Commit-Queue: Georg Neis <neis@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76955}

This CL sets the prototype for the other WebAssembly API objects,
Module, Instance, Table, and Memory.

For Instance, the WebAssemblyInstanceImpl function got inlined, as
there was only one caller, and it made setting the prototype
complicated.

R=jkummerow@chromium.org

Bug: v8:12227
Change-Id: I93b459d69b917b099b27f957fb0e04b7e021bd59
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168282
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76954}

This adds a few DCHECKs to ensure that the process-wide memory
protection key is not writable (per thread) in a few strategic places:
- Before switching it to writable (which implicitly checks the initial
    state),
- when entering compiled code, and
- in the explicit unit test.

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

Bug: v8:11974
Change-Id: I6037f599afe9009d5e48794eb382eb1979f3ce9f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3165060Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76953}

It didn't take the recently added
--stress-concurrent-inlining-attach-code feature into account.

Bug: chromium:1250547
Change-Id: I657b030308158353b72b9b38db7909a1e4190b6c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171153
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76952}

Rolling v8/third_party/google_benchmark/src: https://chromium.googlesource.com/external/github.com/google/benchmark/+log/713b917..0baacde

Update policy to match reality (Dominic Hamon)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/0baacde

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

Change-Id: I84c57d1fba5010c878abf79010c508c5516d121a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171724Reviewed-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@{#76951}

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}