Bug: v8:11650
Change-Id: Ice830eda80e81faf920c73214f7cd8f4230af6d9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831472
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73989}

Instead, bail out of inline literal creation if a deprecated map is
found. This makes it easier to compile on the background thread.

Bug: v8:7790
Change-Id: I87941938d4f13dcf49230cf246c33bf2f49897f5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2745134
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73988}

Add --compile-only and --repeat-compile=N options for benchmarking
compilation performance.

Change-Id: Ibcdce94ef0d2a24374badeca114f44b693adb2ac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2827903
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73987}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/e966858..e00ea2a

Rolling v8/third_party/aemu-linux-x64: V4pHBauOtd8S1jDOxP65uQ5t1vxtzWpESymTE3h7ZMMC..9sUPtFCh9UkUuiYa9MoTXIK9ycaDI3CAdFHoa7zIT9cC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/3898886..02b5d39

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/b1cc5ed..9ceff71

TBR=v8-waterfall-sheriff@grotations.appspotmail.com

Change-Id: I20c5b2a59bb597c5bf5b4b305b222fe03aa0175d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2830252Reviewed-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/master@{#73986}

- represent smis as fake heap numbers
- numbers nodes (both smi and heap numbers) reference a child node whose
  name is "value" and whose entry is the string representation of that
  number

That feature is disabled by default, and can be enabled by passing
captureNumericValue: true when calling HeapProfiler.takeHeapSnapshot

This patch slightly refactors some functions that operate on "essential
objects". We now check that the object is essential before trying to
create the entry. Otherwise, we would end up with smi objects created,
but not referenced anywhere.

Design doc:
https://docs.google.com/document/d/1Qh1zxyn0SS5wzJzitD6ecBJTdFbQkJogSMwxDRsn44o/edit

Change-Id: Ibbe6e79a54c4f9eace72bc0a0ccb622a97698e00
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806747Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Arnaud Renevier <arenevier@fb.com>
Cr-Commit-Position: refs/heads/master@{#73985}

Port 06a2c2e0

Original Commit Message:

    We currently allow OSR (On-Stack Replacement) of arbitrarily deep return
    addresses. This is in direct violation of Intel CET's shadow stack,
    which we plan to enable eventually.

    This change works around this by postponing OSR until after we return to
    the old code. The main changes are:
    - Reserve a slot in Liftoff frames to store the OSR target,
    - Skip the return address modification, and instead store the new code
    pointer in the dedicated slot,
    - Upon returning to the old code, check the slot and do an indirect jump
    to the new code if needed.

    CET also prevents indirect jumps to arbitrary locations, so the last
    point is also a CET violation. Valid indirect jump targets must be
    marked with the ENDBRANCH instruction, which I will do in a follow-up
    CL.

R=thibaudm@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: Id972de1ba7556474cb00b377ea3a38eb4332eae3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2828870Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73984}

Bug: v8:11589
Change-Id: I6f43e6382b3441adf59dbaea58d766013cf3793b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826712Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73983}

The typing of br_table was relaxed in
https://github.com/WebAssembly/spec/pull/1305. Before, we had to compute
the greatest lower bound of all branch types and make sure that stack
values are subtypes of that type. Now, we have to check that the stack
values are subtypes of each individual branch. This makes a difference
only in polymorphic stacks, but greatly simplifies the code, especially
with the upcoming introduction of a much more complex type system in
wasm-gc.

Change-Id: I6e3b410cfe0e71a97623b3030b3575ef707c4900
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2827897
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73982}

This is a reland of 6ec52d90. The failing
tests have been adapted at the blink side.

Original change's description:
> [wasm] Enable wasm threads by default in V8
>
> Finer grained control of platforms that support threads are
> enforced by chromium.
>
> Bug: chromium:1167733
> Change-Id: Ic34a4950aebf6ba394053b79df97b703af333636
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2810190
> Reviewed-by: Lutz Vahl <vahl@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73919}

Bug: chromium:1167733
Cq-Include-Trybots: luci.v8.try:v8_linux_blink_rel
Change-Id: I56a00a24f17fef8a8050ee6f4b28fc13c7d3fb30
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826540Reviewed-by: Lutz Vahl <vahl@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73981}

Bug: v8:11165
Change-Id: I022a50cc25ab57f6bb24739c0e65ebe599371e3d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826129Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Michaël Zasso <mic.besace@gmail.com>
Cr-Commit-Position: refs/heads/master@{#73980}

Drive-by: cleanup PersistentTest and MarkerTest

Bug: chromium:1056170
Change-Id: I85d674cda7d580e8cd7be807791ba883b0f7a111
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2827898
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73979}

This test relies on non-concurrent optimizations to precisely test
transitions between the different tiers.

Disable flags that invalidate this test:
--no-always-opt to test transiation from Ignition to Sparkplug
--deopt-every-n-times=0 to test transition from Sparkplug to TF

Bug: v8:11656
Change-Id: I85047015d3f7cfdf00bddad59c9742d5d8f5d223
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2827902
Auto-Submit: Patrick Thier <pthier@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73978}

We currently allow OSR (On-Stack Replacement) of arbitrarily deep return
addresses. This is in direct violation of Intel CET's shadow stack,
which we plan to enable eventually.

This change works around this by postponing OSR until after we return to
the old code. The main changes are:
- Reserve a slot in Liftoff frames to store the OSR target,
- Skip the return address modification, and instead store the new code
pointer in the dedicated slot,
- Upon returning to the old code, check the slot and do an indirect jump
to the new code if needed.

CET also prevents indirect jumps to arbitrary locations, so the last
point is also a CET violation. Valid indirect jump targets must be
marked with the ENDBRANCH instruction, which I will do in a follow-up
CL.

Bug: v8:11654
Change-Id: I6925005211aa95d60803b9409e3c07c7c226b25c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826127
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73977}

This should catch potential build file misconfigurations.

Change-Id: I1bd1f808a4758e0d3b71c862cfc34e7b01e6fbd9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2827894
Auto-Submit: Dan Elphick <delphick@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73976}

Change-Id: I8db5f0b4cb1cfa23e210ac43b50680ce96e622b8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826538
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73975}

- Allow pass/fail for all test-heap/LeakNativeContextVia* tests in
stress_concurrent_inlining mode.
- Don't capture stack locations in lambdas passed between threads.

Bug: v8:7790,v8:11650
Change-Id: I6c23b527d5f96f2f4b2354d16f39d832dea17e71
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2827895
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73974}

An exploitation technique that abuses `pop` and `shift` to create a JS
array with a negative length was publicly disclosed some time ago.

Add extra checks to break the technique.

Bug: chromium:1198696
Change-Id: Ie008e9ae60bbdc3b25ca3a986d3cdc5e3cc00431
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2823707Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Sergei Glazunov <glazunov@google.com>
Cr-Commit-Position: refs/heads/master@{#73973}

Changes:
- Implement function subtyping in wasm-subtyping.cc.
- Add Signature::Build(), which takes initializer lists for the return
  and parameter types.
- Only throw kTrapFuncSigMismatch in call_indirect, change that trap's
  message.
- Add a missing "return 0" in function-body-decoder-impl.h
- Fix a faulty check in wasm-objects.cc.
- Improve some comments.
- Write tests. Improve readability of subtyping-unittest.

Bug: v8:7748
Change-Id: I1caba09d5bd01cfd4d6125f300cd9c16af7aba99
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2822633Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73972}

No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:11650
Change-Id: I12857a479f95f8c60a921118cf68f7f88a81a822
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826537
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73971}

- FLAG_turbo_inline_js_wasm_calls data race
- Map::instance_descriptors non-atomic concurrent loads
- Skip one more cctest incompatible with stress_concurrent_inlining

Bug: v8:7790,v8:11648,v8:11651
Change-Id: Ie4833373a1da34497f4cfe129254071d8a5772dd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2827891Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73970}

Some logic still remains, notably in compiler/.

Bug: v8:8888
Change-Id: I7e7f10a487e1bc8b90bbbfedbc46bf09bae0717e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2825589
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73969}

building the unittests target for example fails when cppgc_is_standalone
is set to true due to conflicting implementations of trace-event.h. It
is not clear from the output for these failures that V8 targets cannot
be built with cppgc_is_standalone.
We could disable all non-cppgc targets that depend on cppgc when
cppgc_is_standalone is set, but that would be fragile and dirty.
Since all V8 targets need to include cppgc-js headers, adding a  static
assert in cpp-heap.h would cover all V8 targets. The static assert
doesn't hide the current output, butadds a clear and expllicit message
stating that it cannot be done.

Bug: chromium:1056170
Change-Id: I8bd1b1a5ada18d9688e6b78de4693386539d78bf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826535Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73968}

.. to increase coverage of concurrent inlining, at least in this stress
mode. The common pattern in mjsunit tests is to call
`%OptimizeFunctionOnNextCall(f)` for interesting function `f`. This
explicitly triggers non-concurrent compilation, significantly decreasing
relevant coverage of concurrent inlining.

This CL recovers coverage by spawning an additional concurrent compile
job when 1. --stress-concurrent-inlining is enabled, and 2. the
requested compile mode is non-concurrent. The result of these
additional jobs is discarded.

Drive-by: Fix two simple uncovered issues.

Bug: v8:7790,v8:11513,v8:11648
Change-Id: If1e8ca5ba737e3cecdec9e15e4a86b28fe9fb2de
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2824440
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73967}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/b30d9d1..e966858

Rolling v8/third_party/aemu-linux-x64: 81MEiC7zu9wgtKKP_jHorqj5uRmgBSx04zU75G1PX8YC..V4pHBauOtd8S1jDOxP65uQ5t1vxtzWpESymTE3h7ZMMC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/6cb38d7..3898886

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/f9d141a..b1cc5ed

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/633b99a..eefe475

Rolling v8/tools/luci-go: git_revision:de0691397dd4daa4ae63d308fe911bb6ee8630d6..git_revision:4b61ac9cadfb8d19a09262c6e6f5342d9324acd0

Rolling v8/tools/luci-go: git_revision:de0691397dd4daa4ae63d308fe911bb6ee8630d6..git_revision:4b61ac9cadfb8d19a09262c6e6f5342d9324acd0

Rolling v8/tools/luci-go: git_revision:de0691397dd4daa4ae63d308fe911bb6ee8630d6..git_revision:4b61ac9cadfb8d19a09262c6e6f5342d9324acd0

TBR=v8-waterfall-sheriff@grotations.appspotmail.com

Change-Id: I193cd09e604cf60f4a3243c7512de1d27a745149
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826915Reviewed-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/master@{#73966}

Bug: v8:11589
Change-Id: I30dbdbc6266d703ce697352780da1d543afbb457
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826711
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73965}

This is a partial port of :
2c38a477

Some of the opcodes were added back in later CLs.

Change-Id: Iba33b0930f5b7ec95cdbe6febaa38766a9a6344f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826238Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73964}

The following error occurs without braces:

error: suggest explicit braces to avoid ambiguous 'else'.

Change-Id: Iae1af51dcaf8ab6b34fd9312f3133fbd395a653c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826234Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73963}

The bricklink.com brickage has since been fixed upstream.

I2S with LGTMs:
https://groups.google.com/a/chromium.org/g/blink-dev/c/I8S78w7aFmE/m/qLHAcjhRCQAJ

Bug: v8:10961
Bug: chromium:1170196
Change-Id: I460e1080aee837bde0e9861d761f2e7dbc8fd6b0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2824101
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73962}

Bug: chromium:1056170
Change-Id: I78844ed1921c5558a2c5ab6121208c1887fe8b3f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826118
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73961}

Migrating unittests from Blink that were not already covered by cppgc.

Bug: chromium:1056170
Change-Id: If31591c3f1e99562028087c2b818f5ceb8122ec9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2821542
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73960}

This reverts commit d435eaa5.

Reason for revert: Breaks compilation on the vtunejit bot, see https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20vtunejit/41247/overview

Original change's description:
> [api] Add v8::Isolate::ThrowError helper
>
> Add a ThrowError helper to encourage throwing full Error objects
> instead of just v8::Strings.
>
> Bug: v8:11195
> Change-Id: I15d75b1d39b817de3b9026a836b57a70d7c16a28
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2811738
> Commit-Queue: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Dan Elphick <delphick@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Marja Hölttä <marja@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73958}

Bug: v8:11195
Change-Id: I2773d8ca7d73e7952d274381e2e0a2e5733a83da
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826533
Auto-Submit: 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/master@{#73959}

Add a ThrowError helper to encourage throwing full Error objects
instead of just v8::Strings.

Bug: v8:11195
Change-Id: I15d75b1d39b817de3b9026a836b57a70d7c16a28
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2811738
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73958}

The flag is useful for disabling tests that are not supported in
the third_party_heap build configuration.

Example usage in the status files:
['third_party_heap', {
  'testname': [SKIP],
}],  # third_party_heap

Bug: v8:11155
Change-Id: I991532bf7cdf89d8c505e4d6cbd7cf9e4d70dd63
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2821960
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73957}

After https://crrev.com/c/2807609 a test has started
failing as parameter_slots was more than 16 bits, hence
we need to load it instead of using it as an immediate value.

Change-Id: I738472634b3e30cbf277959965e72b028f9fb969
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826231
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Reviewed-by: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73956}

R=manoskouk@chromium.org

Change-Id: Ia5ecd3fac9178f2f9519686e818f9025ae95086d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2824441Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73955}

Port 885b1ac9

Original Commit Message:

    Similarly to Windows, on macOS we should touch the memory in a page
    when allocating stack space that crosses page boundaries.

R=victorgomes@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: I6d3fc012c5a88e287deb0bb4d78ae001a1318b4b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826230Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73954}

Bug: chromium:1173527
Change-Id: If918b739f137b9c09030104b909e7bd2d4cd5984
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2817616Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73953}

Change-Id: I3828c6a854d09629784f481c76781003b4030993
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2814562Reviewed-by: Brice Dobry <brice.dobry@futurewei.com>
Commit-Queue: Brice Dobry <brice.dobry@futurewei.com>
Cr-Commit-Position: refs/heads/master@{#73952}

Instead of assigning serial numbers when the template infos are
created, this patch creates serial numbers only when they are added to
cache.

This way only the ones that are first instantiated are allocated the
fast template cache. Previously, various accessors and methods that
would almost never get instantiated got assigned to the fast template
cache.

Bug: v8:11284
Change-Id: I8f7578aa0dae48267bbc6303515114eb6e24c1c4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2621081Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#73655}
TBR: ulan@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2825592
Cr-Commit-Position: refs/heads/master@{#73951}

Change-Id: If33624193cb771ec0f1d7fc3364d50c850af7dcb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2822276Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73950}