This reverts commit e95e1b6234.
Reason for revert:
https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20arm%20-%20sim%20-%20debug/23064
Original change's description:
> [heap] Introduce LocalIsolate for main thread
>
> Add a LocalIsolate for the main thread to Isolate. This LocalIsolate is
> kept alive during the whole lifetime of the Isolate. The main thread
> LocalIsolate starts in the Running state in contrast to the background
> thread LocalIsolates (those start in Parked).
>
> Code paths in Turbofan that used to create a LocalIsolate on the main
> thread can now simply use the main thread LocalIsolate.
>
> LocalIsolate for the main thread will help in reducing differences
> between the main and background threads. The goal is that the main
> thread behaves more like a background thread.
>
> The main thread LocalIsolate should also make it simpler to share code
> between main thread and background threads by using LocalIsolate for
> both.
>
> Bug: v8:10315
> Change-Id: I7fd61d305a6fd7079e2319d75c291c1021e70018
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2509593
> Reviewed-by: Simon Zünd <szuend@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#71226}
TBR=ulan@chromium.org,yangguo@chromium.org,neis@chromium.org,leszeks@chromium.org,szuend@chromium.org,dinfuehr@chromium.org
Change-Id: Ia70b4bfe3b8fa26bf8d6a7dc612a310b0ed54073
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10315
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2543937
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71228}
This CL adds a cctest to verify that the tiering strategy for the
js-to-wasm wrappers works for functions that are only indirectly
exported through exported tables.
Bug: v8:10982
Change-Id: I8eede14ab620dbadb75af42b78bfac88230a6dd3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536644
Commit-Queue: Vicky Kontoura <vkont@google.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71227}
Add a LocalIsolate for the main thread to Isolate. This LocalIsolate is
kept alive during the whole lifetime of the Isolate. The main thread
LocalIsolate starts in the Running state in contrast to the background
thread LocalIsolates (those start in Parked).
Code paths in Turbofan that used to create a LocalIsolate on the main
thread can now simply use the main thread LocalIsolate.
LocalIsolate for the main thread will help in reducing differences
between the main and background threads. The goal is that the main
thread behaves more like a background thread.
The main thread LocalIsolate should also make it simpler to share code
between main thread and background threads by using LocalIsolate for
both.
Bug: v8:10315
Change-Id: I7fd61d305a6fd7079e2319d75c291c1021e70018
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2509593
Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71226}
This CL enables a first batch of feedback-based optimizations in NCI
code. Specifically, optimizations based on unary, binary, compare,
for-in-next, and for-in-prepare feedback are now enabled.
This has two main implications:
1. NCI code can now deopt. Deoptimized code is currently thrown away
permanently and cannot be reused. Now that shared/cached NCI code can
deopt, this leads to an interesting question of what should happen
with deoptimized NCI code. The answer in this CL is to remove the
cache entry (it may later be re-added).
2. Tiering up from NCI to TF still requires feedback; since NCI code,
starting with this CL, no longer collects full feedback, feedback must
be created in some other way. This is solved by sharing a
context-independent encoding of feedback across native contexts.
Feedback is shared through a new SerializedFeedback object type,
essentially a byte array of serialized feedback. Currently, only
smi-based feedback is shared, but map-based feedback will be added in
the future.
SerializedFeedback is kept in the NCI cache alongside NCI Code
objects. It is created on NCI cache insertion, and deserialized upon
NCI cache hits.
Bug: v8:8888
Change-Id: Ic0d5fbea3aa4d3b0a165624dab9d0283b07dcee7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2531775
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71224}
When a thread gets archived, we still need to scan and update debug
roots on GCs for it. Otherwise we restore stale references when the
thread becomes active again.
Bug: v8:11145
Change-Id: I88f4c1534e826aed222e7fb67bd82bb0a4758fab
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2537691
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71221}
all_true, any_true, bitmask, and extract_lane all replace a simd type
with single scalar, so we don't need to set nullptr for the extraneous
lane, and can set num_lanes to 1.
So for a call node with any of the above nodes as one of its value, we
were incorrectly replacing the extract lane node with 4 nodes - it
should only be 1 scalar node.
Drive by fix for LowerShift, it needs to check if the shift value node
has replacement (e.g. if it is an extract lane node).
Also we weren't setting the lowered type of a kPhi node. This can be a
problem if the output of a Phi node is used by a F32x4ExtractLane and
I32x4ExtractLane, which is possible (and type correct since both take
v128). This will require that the output be both a float and a int,
which is impossible. So fix it to Int32x4, and the uses of the phi nodes
will convert appropriately.
Added a test for the call node. Also tested this code by running one of
our benchmarks, which exercises the Phi logic.
Bug: v8:10507
Change-Id: I01a76b349ba9d0e157b64e737bdb4c70f96aa954
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536952
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71218}
The current name for the operator (for printing) is "Extract lane",
without an indication of the shape. Add the shape (I32x4) and sign (for
I8x16 and I16x8, s or u) to the name so that it is clearer what
operation it is.
Change-Id: I1ab30dee5ae820c378cdef8233de1c365dd126c5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2534630
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71217}
With more of scalar lowering implemented, this test can now run with
lowering. The only other tests that skip lowering are prototype
instructions.
Bug: v8:10507
Change-Id: Ia149956d2d406b6f76eb9155765474c23b89b894
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2507317
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Ben Smith <binji@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71215}
S128Select and S128AndNot relies on the inputs being lowered to I32x4,
since they use Word32Xor, but it wasn't correctly specified. This means
that by default, their lowered type was set to be the output's lowered
type. If the result of these operations were used by F32x4ExtractLane,
then their lowered type will be set to Float32x4, so the inputs will be
lowered to Float32x4, and we get incorrect type of registers allocated.
Bug: v8:10507
Change-Id: I16dc7f2dcdaf2188997ff345a6b0fd22e10b7b36
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536953
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71214}
It is becoming difficult to continue supporting the compiler dispatcher
and background compile task unittests alongside the off-thread
finalization work, so disable those tests when that flag is enabled.
Bug: chromium:1011762
Change-Id: Iba9aaa29b08723afb90edc127609fef1d63ceed5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2539908
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71211}
Just as OS::Abort, OS::ExitProcess never returns. This is a minor
cleanup which is not expected to reduce binary size considerably, since
we do not call this function often. It is just nice to annotate it
correctly.
On windows, the {TerminateProcess} call is known to not return if
called on the current process. Add an {UNREACHABLE} to enforce this.
R=mlippautz@chromium.org
Bug: v8:11074
Change-Id: I5c079fc459685c65f932404ce536ea28ad188073
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536634
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71210}
- allow arrays to be allocated in LargeObjectSpace
- check requested array allocation length against maximum
- fix array element offsets for pointer-typed elements
- fix GC handling of arrays when there are forwarding pointers
- module builder: fix rtt.sub global initializer expressions
- debug printing: print "UNIMPLEMENTED" instead of crashing
- WasmGCTester: make some exceptions easier to diagnose
Bug: v8:7748, chromium:1141376
Change-Id: Ie0281658748f3dd5e5d90d85bab78f0ea2fc3865
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2534815
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71208}
- Reuse DOM nodes if possible
- Delay slow DOM node removal to not block the UI
- Fix global time range syncing when adding timelines to the state
- Use a Proxy to cache CSS colors instead of querying CSS properties
on every access
- Set className on newly create DOM nodes instead of adding to the
classList
- Use bound functions for event handlers that are added multiple times
- Speed up Chunk.getBreackdown
- Use CSS gradient for timeline-track chunk backgrounds, which is an
order of magnitude faster than the serialised canvas approach
Bug: v8:10644
Change-Id: Ie2d6d5b404f18e920c10c0a6460669fd4d0b20e8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2539947
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71207}
Constant-time subtype checks are only valid for struct/array
objects. Previously, the code checked for JS_FUNCTION_TYPE to
specifically catch funcrefs. With this patch, anything except
struct/array objects is excluded, in preparation for anyref
support. Additionally, this dynamic check is now only emitted
when static type information is not enough.
Bug: v8:7748
Change-Id: Ia2920902ee1d9e9714a4b8297a963ba3d6d3312a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536290
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71206}
This CL adds partial support for objects whose slow mode dictionaries
are OrderedNameDictionaries. This is the case for all slow mode objects
if V8_DICT_MODE_PROTOTYPES is enabled.
In particular, this part deals with those runtime functions called by
the DefineClass builtin, located in literal-objects.cc and
runtime-classes.cc.
Bug: v8:7569
Change-Id: Ie4c479fd6f8872eea9f190590408a4aafd1c77e6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2523321
Commit-Queue: Frank Emrich <emrich@google.com>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71205}
This resolves issues building gcmole under LLVM 8.0.0 with gcc 10 (see
https://bugs.gentoo.org/708730).
Change-Id: I932def25fb3cc841cf21414a513fbe2a2fa8a8dc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2539946
Reviewed-by: Tamer Tas <tmrts@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Tamer Tas <tmrts@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71204}
Ports updates to weak container handling in blink performed in [1].
These changes were needed to resolve timeouts for android.
See [1] for more details.
[1] https://chromium-review.googlesource.com/c/chromium/src/+/2516363
Bug: chromium:1056170
Change-Id: I2b2c451d494438a37886a3c2bc73481bc9228664
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2538211
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71202}
As Wasm code increasingly needs to deal with various HeapObject
subtypes, the WasmGraphAssembler is a good place to consolidate
common helper methods like LoadMap or LoadFixedArrayElement.
This is clearly inspired by the CodeStubAssembler, and there is
clearly room for much more refactoring in this direction.
This CL does not intend to change any functionality.
Bug: v8:11074
Change-Id: I1b768c5791bde7041bc9f41a3069afb1844cdb46
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2532083
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71201}
... and use Name::hash() where the hash is expected to be computed.
In particular, when we are dealing with internalized strings or symbols.
Bug: v8:11074
Change-Id: Ida22f134fee0ddf2c9b962d1bcca6aa0b632af5f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2529451
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71200}
Split globals.js into two parts, one being skipped on NCI due to
assertions about optimization status.
Change-Id: Ifc572526d9c6aed369802a65d12c4456cde65ce0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2539909
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71199}
Main changes:
- Remove the kUninitialized and kInvalidated cell type aliases. They
were confusing because their meaning depended on the current value in
the cell. I think kUninitialized was obsolete anyways.
- Remove a DCHECK from the compiler. The property that was asserted,
while true, is irrelevant.
- Remove the obsolete function GetConstantType. The only left use was
in the object printer, but it's pointless there because we already
print the value anyways.
Change-Id: Ic718c8ba39aeb5bf18f588535dfb755a023cb144
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536647
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71198}
Add a requirement to String::GetChars that we either have a string
access lock, or a string access lock is not needed. This prevents us
from reading strings during internalization that may be in the middle
of being made external.
To avoid taking the lock too often when known to be unnecessary (e.g.
for strings that were only just created), there's now a static
SharedStringAccessGuardIfNeeded::NotNeeded(). This is hopefully ugly
enough that it's used sparingly.
One fix required for this is to enter the Isolate when tearing down
IsolateData in inspector tests -- this is so that the V8Inspector
instance being torn down will see the current Isolate and be able to
verify its thread id against the current thread.
Bug: chromium:1011762, chromium:1148680
Change-Id: Ic5d29c1b066ebae5a351c7b4bb116b9b1bf61889
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536465
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71197}
- Add tests comparing super property access to normal property access
- Shift the work so that the framework takes less time and the thing
we're trying to measure takes more time.
- Optimize / disable the optimization for the target function, not the
whole test framework.
- Reduce the amount of boilerplate code in the tests.
Bug: v8:9237
Change-Id: Idde133298c9b8ffb3d49945ef9c67f5039634598
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536635
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71196}
Fix the ASAN crahs when there are 9 or more items to be formatted by
ListFormat.
chromium DEPS rolled in
https://chromium-review.googlesource.com/c/chromium/src/+/2536432
This CL is mainly to add unit test to ensure it fix.
Cq-Include-Trybots: luci.v8.try:v8_linux64_asan_rel_ng,v8_mac64_asan_rel_ng,v8_win64_asan_rel_ng;luci.chromium.try:android-asan,win-asan,win-libfuzzer-asan-relBug: chromium:1146068
Change-Id: I4dfbd6ea0efe5b398196f95abc520bb93e16a7cd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2528476
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71192}
This is the 2nd step in series of CLs to move the SharedFunctionInfo
class to kNeverSerialized and make it concurrently accessible from
the background thread. This CL:
* Changes optimization of GetTemplateObject in JSCreateLowering to
only perform the optimization of a template object exists in the
SharedFunctionInfo[Ref], but skips the optimization if one is
missing instead of allocating a new one on demand.
Bug: v8:7790
Change-Id: Ic37d8333676e54b3f8d69416480df12bd90723ea
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2463229
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71189}
Instead of caching only the default formatter, cache the last used
formatter if possible.
This is better because it's a common use case to create a formatter
in a different language and reuse it a lot, rather than create
several formatters in various languages.
Running the following benchmark:
```
let i = 0;
function toLocaleString() {
i++;
return i.toLocaleString();
}
i = 0;
function toLocaleStringWithLocale() {
i++;
return i.toLocaleString('en-US');
}
const functions = [toLocaleString, toLocaleStringWithLocale];
for (const f of functions) {
let start = performance.now();
for (let i = 0; i < 10e5; i++) {
f();
}
let end = performance.now();
print(`${f.name}: ${end - start}`);
}
```
sees the following improvements:
With this patch:
toLocaleString: 384.292
toLocaleStringWithLocale: 450.48900000000003
Without this patch:
toLocaleString: 341.952
toLocaleStringWithLocale: 23439.694
This a little over 50x improvement.
Bug: chromium:926075
Change-Id: I0e316e959c90243e175df985854832a7abddbf54
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536461
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71188}
The new platform can be used in combination with --single-threaded.
It disables background threads and thus avoids waiting on mutexes
and condition variables completely, which is useful for V8 embedders
that fork the V8 process after initialization.
As a bonus the new platform allows use to test --single-threaded and
has already uncovered an existing bug in parallel pointer updating code.
Change-Id: I3446fa027d2a077641cdaac0cd08062a1acae176
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416501
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71187}
It is only used during initialization.
Bug: v8:7790
Change-Id: I2105ad01413e3b398b3252d14e83c930c0dd3e74
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536637
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71186}
Don't deopt when a PropertyCell changes from readonly to writable.
Turbofan doesn't depend on readonly-ness unless the property is
also non-configurable, in which case such a change can't happen.
Change-Id: I3d1078a8adf1ec1b16d973dd71c4295d71003a8d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2531791
Commit-Queue: Georg Neis <neis@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71184}
This will allow us to target the new executable from existing JS fuzzers
(like the ochang fuzzer). Let's see if this gives more interesting JS
input files.
R=machenbach@chromium.orgCC=szuend@chromium.org
Bug: chromium:1142437
Change-Id: Id5bcfe660a487fbb9d6b80d167f43324cc284e1f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536632
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71182}
Change-Id: I2c9f3ac81710b89543b392819a6cce03eaba6cae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536639
Commit-Queue: Georg Neis <neis@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71181}
This is a reland of 04cdcd5a88
Got reverted in https://crrev.com/c/v8/v8/+/2534294 due to
TSAN issues. Those are solved in https://crrev.com/c/v8/v8/+/2537693.
Original change's description:
> [compiler] Move InternalizedString to kNeverSerialized
>
> Bug: v8:7790
> Change-Id: I8311b1f4b8239d0688a4b9b9057d6082942bbc00
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2534471
> Reviewed-by: Georg Neis <neis@chromium.org>
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#71159}
Bug: v8:7790
Change-Id: I95d68e23e4bc81399bcdcf7ce2fdcf49ddfb66c5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536641
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71180}
