This reverts commit 3b06511052.
Reason for revert: Broke fuzzers:
https://build.chromium.org/p/client.v8.clusterfuzz/builders/V8%20Deopt%20Fuzzer/builds/384
Original change's description:
> Reland "[test] Creating command before execution phase."
>
> This is a reland of 98cc9e862f
> Original change's description:
> > [test] Creating command before execution phase.
> >
> > Immutable command class with shell, flags and
> > environment.
> >
> > Command creation moved from worker to the main
> > process. Because of that there is no need to send
> > test cases beyond process boundaries and load test
> > suites in worker processes.
> >
> > Bug: v8:6917
> > Change-Id: Ib6a44278095b4f7141eb9b96802fe3e8117678a6
> > Reviewed-on: https://chromium-review.googlesource.com/791710
> > Commit-Queue: Michał Majewski <majeski@google.com>
> > Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#49746}
>
> Bug: v8:6917
> Change-Id: I49c29a8db813c47909f2cc45070ac7721a447c7a
> Reviewed-on: https://chromium-review.googlesource.com/800370
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Commit-Queue: Michał Majewski <majeski@google.com>
> Cr-Commit-Position: refs/heads/master@{#49756}
TBR=machenbach@chromium.org,sergiyb@chromium.org,majeski@google.com
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:6917
Change-Id: I4938642c4396366be1e13daf6998c4b8538b688b
Reviewed-on: https://chromium-review.googlesource.com/804254
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49805}
Aligns console.count() behavior with spec, which says the default label
should be "default" when the label provided is not defined.
Bug: chromium:700624
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ie58af210d300ef3151082b23187dd18e356f5de8
Reviewed-on: https://chromium-review.googlesource.com/780620
Commit-Queue: Erik Luo <luoe@chromium.org>
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49804}
Similar to Firefox and Safari, calling console.time() repeatedly with
the same label will now produce a console warning indicating that the
label already exists. Similarly for console.timeEnd() as well.
Bug: chromium:727514
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Id644ee107b09e7f4686fff44c5f32d31c88371ad
Reviewed-on: https://chromium-review.googlesource.com/794345
Commit-Queue: Erik Luo <luoe@chromium.org>
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49803}
Flush the icache after JIT-ing using the WasmCodeManager. Also, re-enable
tests that were previously failing on Linux ARM.
Bug: v8:7138
Change-Id: I8e18b80dba58df173a2360f8ac365ee5daaf3239
Reviewed-on: https://chromium-review.googlesource.com/802961
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49800}
Hexadecimal escape sequences of the form `\xNN` are more readable
in the context of byte values, and are preferred per Google’s C++
style guide.
https://google.github.io/styleguide/cppguide.html#Non-ASCII_Characters
BUG=v8:7109
Change-Id: I6821ccb804388d99e5601e92fc392afdf496691e
Reviewed-on: https://chromium-review.googlesource.com/803057
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49799}
Some uses use uint64_t instead of int64_t to avoid compiler warnings
about illegal narrowing of values with the MSB set.
R=tebbi@chromium.org,mlippautz@chromium.org
Bug: v8:7109
Change-Id: I6e861f48828bd931c451ef336672a260c13ae042
Reviewed-on: https://chromium-review.googlesource.com/803275
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49797}
Adds new API function to request code cache. Earlier code cache was
produced along with compile requests. This new API allows us to request
code cache after executing. Also adds support in the code serializer to
serialize after executing the script.
Bug: chromium:783124,chromium:789694
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Id4e6a967e176e3e979dc4ccb9a37a353c70c3890
Reviewed-on: https://chromium-review.googlesource.com/797036
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49793}
V8_INT64_C will be cleaned up in a follow-up CL.
R=tebbi@chromium.org,mlippautz@chromium.org
Bug: v8:7109
Change-Id: I6af97e7266039eb443896b404b77b8e2b5de5adb
Reviewed-on: https://chromium-review.googlesource.com/803294
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49790}
These now pass even when forcing optimization.
TBR=jkummerow@chromium.org
Bug: v8:6791
Change-Id: I4d7c7d37b48e6e970d33474fa7fd637e34b0bda0
Reviewed-on: https://chromium-review.googlesource.com/803374
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49781}
It reflects the semantics of ToBoolean, so it must be adapted for
bigints.
Bug: v8:6791
Change-Id: I18931df21528463dacf5ad50fa8264b1c968c6b5
Reviewed-on: https://chromium-review.googlesource.com/799831
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49776}
This reverts commit e42e7fc800.
Reason for revert: Speculative revert for:
https://crbug.com/v8/7149
Original change's description:
> [objects] No longer create short external strings.
>
> This fixes String::MakeExternal() to bail out if the subject string
> doesn't fit a regular ExternalString, instead of creating a short
> external string. The observation here is that for short external strings
> the overhead of having to have the StringResource plus going to the
> runtime/C++ for each and every character access from JavaScript land
> is probably bigger than the anticipated benefits.
>
> If this turns out to be wrong and there's a real benefit, we should make
> use of ThinStrings instead of having a separate way to represent
> external strings.
>
> Bug: v8:6621, v8:7109, v8:7145
> Change-Id: I4b75da08b82a72027c782a69de9c8eaf3cca1d4d
> Reviewed-on: https://chromium-review.googlesource.com/799750
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49735}
TBR=yangguo@chromium.org,bmeurer@chromium.org
Change-Id: I3f5cfa9ab5c99ddce1d61ede9ed9515cb3936cdd
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6621, v8:7109, v8:7145, v8:7149
Reviewed-on: https://chromium-review.googlesource.com/801675
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49770}
This is a reland of 98cc9e862f
Original change's description:
> [test] Creating command before execution phase.
>
> Immutable command class with shell, flags and
> environment.
>
> Command creation moved from worker to the main
> process. Because of that there is no need to send
> test cases beyond process boundaries and load test
> suites in worker processes.
>
> Bug: v8:6917
> Change-Id: Ib6a44278095b4f7141eb9b96802fe3e8117678a6
> Reviewed-on: https://chromium-review.googlesource.com/791710
> Commit-Queue: Michał Majewski <majeski@google.com>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49746}
Bug: v8:6917
Change-Id: I49c29a8db813c47909f2cc45070ac7721a447c7a
Reviewed-on: https://chromium-review.googlesource.com/800370
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michał Majewski <majeski@google.com>
Cr-Commit-Position: refs/heads/master@{#49756}
This reverts commit 98cc9e862f.
Reason for revert: Breaks test isolation:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20builder/builds/29746
Original change's description:
> [test] Creating command before execution phase.
>
> Immutable command class with shell, flags and
> environment.
>
> Command creation moved from worker to the main
> process. Because of that there is no need to send
> test cases beyond process boundaries and load test
> suites in worker processes.
>
> Bug: v8:6917
> Change-Id: Ib6a44278095b4f7141eb9b96802fe3e8117678a6
> Reviewed-on: https://chromium-review.googlesource.com/791710
> Commit-Queue: Michał Majewski <majeski@google.com>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49746}
TBR=machenbach@chromium.org,sergiyb@chromium.org,majeski@google.com
Change-Id: I44b99468d18fd093833f4185dad067a9eeaf2bc1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6917
Reviewed-on: https://chromium-review.googlesource.com/800292
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49747}
Immutable command class with shell, flags and
environment.
Command creation moved from worker to the main
process. Because of that there is no need to send
test cases beyond process boundaries and load test
suites in worker processes.
Bug: v8:6917
Change-Id: Ib6a44278095b4f7141eb9b96802fe3e8117678a6
Reviewed-on: https://chromium-review.googlesource.com/791710
Commit-Queue: Michał Majewski <majeski@google.com>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49746}
Finally address that long-standing TODO where ConsString allocation in
TurboFan would always go for the two byte map instead of choosing the
one byte map if the inputs are one byte strings.
Bug: v8:5269, v8:7109
Change-Id: Ibcfceaf499ceebef0ef928ebc5f204bcacf29bc0
Reviewed-on: https://chromium-review.googlesource.com/799700
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49744}
Currently RuntimeCallStats stores CounterIds as inner pointers.
This patch replaces them with enums and removes static table.
Bug: chromium:758183
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Icb4030fc3ad3dd02e9c2648ce7c43b6f2d47fa9d
Reviewed-on: https://chromium-review.googlesource.com/796477
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49743}
This CL fixes an issue with --enable-tracing which was introduced
recently where the tracing file was closed too early. In addition it
adds a test for --enable-tracing to avoid such an issue in the future.
R=machenbach@chromium.org, rmcilroy@chromium.org
Change-Id: I1b3699a4dfbe27230ac1d21d5f6bc7b2ee9ed435
Reviewed-on: https://chromium-review.googlesource.com/796214
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49742}
This test expects certain functions to be optimized, which does not
happen if we force array objects onto the slow path.
Bug: v8:7122
Change-Id: I716954fff564f1c4f0782b3452557ec89a3b4307
Reviewed-on: https://chromium-review.googlesource.com/796860
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49736}
This fixes String::MakeExternal() to bail out if the subject string
doesn't fit a regular ExternalString, instead of creating a short
external string. The observation here is that for short external strings
the overhead of having to have the StringResource plus going to the
runtime/C++ for each and every character access from JavaScript land
is probably bigger than the anticipated benefits.
If this turns out to be wrong and there's a real benefit, we should make
use of ThinStrings instead of having a separate way to represent
external strings.
Bug: v8:6621, v8:7109, v8:7145
Change-Id: I4b75da08b82a72027c782a69de9c8eaf3cca1d4d
Reviewed-on: https://chromium-review.googlesource.com/799750
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49735}
In order to test that we don't repeatedly go through the
WasmCompileLazy runtime function, add a flag to the
LazyCompilationOrchestrator to "freeze" it, i.e. disallow any further
lazy compilation.
In tests, use this flag to first call a method, then freeze lazy
compilation, then call the method again to assert that no further lazy
compilation is triggered.
This test currently fails with --wasm-jit-to-native, so disable it for
that variant.
R=titzer@chromium.orgCC=mtrofin@chromium.org
Bug: v8:7140, chromium:788441, v8:5991
Change-Id: I18a40d302c24041740d8a54351d06ed968f4beec
Reviewed-on: https://chromium-review.googlesource.com/796430
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49734}
According to the style guide, enum names they must either be
capitalized, or start with a "k". I prefer the kFoo syntax.
R=mtrofin@chromium.org
Bug: v8:7109
Change-Id: I9c06c4cb05b05ec50de8d68d118f1a0807938426
Reviewed-on: https://chromium-review.googlesource.com/796856
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49733}
Strings are immutable in JavaScript land (contrast with the runtime,
where we can truncate strings that haven't escaped to JavaScript yet),
so the length of a String is immutable. Thus loading the length of a
String is a pure operation and should be expressed as such (i.e. doesn't
depend on control or effect). The StringLength operator does exactly
this and is hooked up to the effect chain in the EffectControlLinearizer.
This will eventually allow us to simplify the optimization of string
concatention and other operations that are a bit cumbersome in TurboFan
currently, and it will also allow us to optimize string operations
across effectful operations, for example combining multiple invocations
to String#slice with the same inputs.
Bug: v8:5269, v8:6936, v8:7109, v8:7137
Change-Id: Iffcccbb0c7fc4cfe1281c10e7af24b40eba4c987
Reviewed-on: https://chromium-review.googlesource.com/799690
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49731}
Some embedders primitive can trigger execution in current JavaScript
instance or in another (e.g. MessageChannel).
With this CL external async task can be local as well.
R=dgozman@chromium.org
Bug: chromium:661705
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I82c68a021c2c25bc67a706c4bfed8c1a2b2388c5
Reviewed-on: https://chromium-review.googlesource.com/792015
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49728}
In the presence of bigints, this optimization is no longer valid.
Bug: v8:6791
Change-Id: I996ac78f8ae4aef5494dd0089374d04c6db6e72f
Reviewed-on: https://chromium-review.googlesource.com/796070
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49725}
The FuzzerSupport was keeping a single instance of itself. With this CL,
this instance is now stored in a unique_ptr. Therefore it is not
necessary to register an onExit callback to delete the FuzzerSupport
instance.
Drive-by changes: Some cleanup with the FuzzerSupport.
R=clemensh@chromium.org
Bug: chromium:787723
Change-Id: I5188c7aa7e778ccd45fc80ed0115c947d23a0dee
Reviewed-on: https://chromium-review.googlesource.com/792949
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49723}
This reverts commit 5d4a090377.
Reason for revert: Speculative revert due to timeouts on testing with
--isolates:
https://build.chromium.org/p/client.v8/builders/V8%20Linux/builds/21889https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20debug/builds/18138
Original change's description:
> Add support to produce code cache after execute.
>
> Adds new API function to request code cache. Earlier code cache was
> produced along with compile requests. This new API allows us to request
> code cache after executing. Also adds support in the code serializer to
> serialize after executing the script.
>
> Bug: chromium:783124
> Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
> Change-Id: Id7b972a2b4c8dcf7a6d9f5ea210890ae968320bd
> Reviewed-on: https://chromium-review.googlesource.com/781767
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Mythri Alle <mythria@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49717}
TBR=ulan@chromium.org,rmcilroy@chromium.org,yangguo@chromium.org,mythria@chromium.org
Change-Id: Id9e0285e73bbc3ea3908b4b7bbf6599e4f7cd76e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:783124
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/796870
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49722}
This fixes debug-evaluate in the presence of a de-materialized function
object. The creation of an arguments object is now requested based on a
given frame (potentially inlined) instead of a target function. It makes
sure that multiple calls to {StandardFrame::Summarize} don't cause any
confusion when they give back non-identical function objects.
R=jgruber@chromium.org
TEST=debugger/debug/debug-evaluate-arguments
BUG=chromium:788647
Change-Id: I575bb6cb20b4657dc09019e631b5d6e36c1b5189
Reviewed-on: https://chromium-review.googlesource.com/796474
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49721}
This reduces the overhead of calling the builtin.
Quick measurements show >5x improvement. As the
typed array's size grows, iterating dominates
and the performance gap closes.
https://github.com/peterwmwong/v8-perf/blob/master/typedarray-findIndex/README.md
Bug: v8:5929
Change-Id: I27d67776c83cbe28f4f9f5ef479a7eeabf594654
Reviewed-on: https://chromium-review.googlesource.com/792394
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49720}
Adds new API function to request code cache. Earlier code cache was
produced along with compile requests. This new API allows us to request
code cache after executing. Also adds support in the code serializer to
serialize after executing the script.
Bug: chromium:783124
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Id7b972a2b4c8dcf7a6d9f5ea210890ae968320bd
Reviewed-on: https://chromium-review.googlesource.com/781767
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49717}
When exporting an imported wasm function, we generate a js-to-wasm
wrapper which calls the wasm-to-wasm wrapper (which then tail-calls
the WasmCompileLazy stub).
This wasm-to-wasm wrapper also needs to be patched.
R=titzer@chromium.org
Bug: chromium:788441, v8:5991
Change-Id: Ibf27618a0511851cb55714b720fe7299a21c2959
Reviewed-on: https://chromium-review.googlesource.com/795990
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49715}
The stlxr (store-release exclusive register) instructions in Arm64 have similar
restrictions to Arm's strex instructions - the status register must not alias
the source or address registers.
Enforce this in the assembler and simulator, and modify Turbofan and cctest to
conform to this. Also, make a small improvement to the code generated for
compare and exchange.
This is a port of 44c52f7bb5.
Bug:
Change-Id: Ia3a8c39b09c5cb579357a5f61c3d88f13d61b724
Reviewed-on: https://chromium-review.googlesource.com/793037
Reviewed-by: Ben Smith <binji@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
Cr-Commit-Position: refs/heads/master@{#49714}
This addresses two TODOs in Ignition where the Construct and the
ConstructWithSpread bytecodes didn't collect JSBoundFunction
new.target feedback. This is fairly trivial to add now with the
existing machinery and the TurboFan side of this was already fixed
before, so we can leverage the new feedback.
Bug: v8:5267, v8:7109
Change-Id: Iae257836716c14f05f5d301326cbe8b2acaeb38b
Reviewed-on: https://chromium-review.googlesource.com/793048
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49712}
This reverts commit 0269965b37.
Reason for revert: Successfully got some stack traces:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Arm%20-%20debug/builds/5274
Original change's description:
> V8: Temporary run wasm_traps on native arm debug
>
> This will break the bot. This is for getting a stack trace and then
> revert.
>
> TBR=mtrofin@chromium.org
>
> Bug: v8:7138
> Change-Id: I244492ca81f817d64ef7c12e291a6ed9b97e68de
> Reviewed-on: https://chromium-review.googlesource.com/795718
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49698}
TBR=machenbach@chromium.org,mtrofin@chromium.org
Change-Id: Id81736508fd7eb2b9220bf41188f7687c4046960
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7138
Reviewed-on: https://chromium-review.googlesource.com/796290
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49707}
This reduces the overhead of calling the builtin.
Quick measurements show >5x improvement. As the
typed array's size grows, iterating dominates
and the performance gap closes.
https://github.com/peterwmwong/v8-perf/blob/master/typedarray-find/README.md
Bug: v8:5929
Change-Id: Ia74546bb46d446c6161c8956e350d4b5cdc1b328
Reviewed-on: https://chromium-review.googlesource.com/792454
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49706}
