Compilation units currently contain pointers into allocated space that
contains the code of the respective function. This requires us to keep
the StreamingDecoder alive as long as compilation is still running
(including tiering).
This CL refactors this by having an additional redirection
(WireBytesStorage) which can point to either the StreamingDecoder or
the NativeModule. We only keep the code section buffer alive as long as
the StreamingWireBytesStorage is still in use.
I will further refactor memory ownership in a follow-up CL to not make
the AsyncCompileJob keep the StreamingDecoder alive.
R=ahaas@chromium.org
Bug: v8:8343,v8:7921,v8:8050
Change-Id: I780582c3217abf64000454f2c9c108b9ac9fbff1
Reviewed-on: https://chromium-review.googlesource.com/c/1319588
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57317}
Recursion is really only useful for sloppy eval and with scopes, which are
uncommon.
Change-Id: I2560b600cab9b00a82d5837a3daa28c8d38c2959
Reviewed-on: https://chromium-review.googlesource.com/c/1322451
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57316}
This is a reland of b8e8b0de4f
Original change's description:
> [ptr-compr] Fix incorrectly used machine types
>
> in TurboFan, CSA, Wasm and compiler tests. Tagged values decompression
> logic will depend on the machine type of the value being loaded so it must
> be correct.
>
> Bug: v8:7703
> Change-Id: Ia9e7cc1e273e5a458d9de8aaa4adb0c970413b8b
> Reviewed-on: https://chromium-review.googlesource.com/c/1319573
> Commit-Queue: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57280}
Bug: v8:7703
Change-Id: I2c740bab9a800520ebfb83334345bd5641b7e408
Reviewed-on: https://chromium-review.googlesource.com/c/1320850
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57314}
in order to make the test compatible with the pointer compression friendly
heap layout.
Bug: v8:8182
Change-Id: I34a0c597b70687f7ae7dad19df60c94520fa349f
Reviewed-on: https://chromium-review.googlesource.com/c/1317818
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57310}
Adds a helper macro "CloneIfMutablePrimitive", which tests if the
operand is a MutableHeapNumber, and if so, clones it, otherwise
returning the original value.
Also modifies the signature of "CopyPropertyArrayValues" to take a
"DestroySource" enum, indicating whether or not the resulting object is
supplanting the source object or not, and removes all default
parameters from that macro (which were not used anyways).
This corrects the issue reported in chromium:901301, where
StaNamedOwnProperty was replacing the value of a MutableHeapNumber
referenced by both the cloned object and the source object.
BUG=chromium:901301, v8:7611
R=cbruni@chromium.org, jkummerow@chromium.org
Change-Id: I43df1ddc84dfa4840e680b6affeba452ce0b6629
Reviewed-on: https://chromium-review.googlesource.com/c/1318096
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57304}
This test takes over 8 minutes to run on arm64 debug.
Also removed redundant skips for another DFG test.
Change-Id: I9c66c90fb3dc5c42ca04010e2d0245626a867ebd
Reviewed-on: https://chromium-review.googlesource.com/c/1321037
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57303}
This CL only clears the wasm translations that correspond to the context
group being reset instead of clearing all.
R=clemensh@chromium.org,kozyatinskiy@chromium.org
BUG=chromium:892864
Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ib5af0489cbdb7c9b1571cb9cf935fda3bee14015
Reviewed-on: https://chromium-review.googlesource.com/c/1292676
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57302}
'simulator_run' is now used exclusively in test/*/*.status.
Change-Id: I501b7ffd19e2476f4c803ed3d25cba69d67039fa
Reviewed-on: https://chromium-review.googlesource.com/c/1318610
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57300}
Handle the pattern 'c' return by ICU in Intl.DateTimeFormat
for weekday standalone form.
Add regression test to ensure all the standalone pattern return
option are in the expected list.
Bug: v8:8413
Change-Id: I9ab42383e3882ef1720606830624775e2748fccb
Reviewed-on: https://chromium-review.googlesource.com/c/1318092
Reviewed-by: Jungshik Shin <jshin@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57299}
This test currently takes nearly 10 minutes on the arm64 debug builder.
Bug: v8:7783
Change-Id: I500fc026b01873e666f32062d790eca3f34455b9
Reviewed-on: https://chromium-review.googlesource.com/c/1318495
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57298}
simulator takes too long to run.
Change-Id: I77f6e932129bfed7d1cdb7e9ccf78a4608554ff5
Reviewed-on: https://chromium-review.googlesource.com/c/1320389
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#57296}
This reverts commit b8e8b0de4f.
Reason for revert:
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Arm%20-%20debug/8276
Original change's description:
> [ptr-compr] Fix incorrectly used machine types
>
> in TurboFan, CSA, Wasm and compiler tests. Tagged values decompression
> logic will depend on the machine type of the value being loaded so it must
> be correct.
>
> Bug: v8:7703
> Change-Id: Ia9e7cc1e273e5a458d9de8aaa4adb0c970413b8b
> Reviewed-on: https://chromium-review.googlesource.com/c/1319573
> Commit-Queue: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57280}
TBR=mstarzinger@chromium.org,ishell@chromium.org
Change-Id: Ia97d5bfebf8d8fe1b2b7607f63024b60cf2c584f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7703
Reviewed-on: https://chromium-review.googlesource.com/c/1320349
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57294}
Rename variables and flag names so that the classes can be reused
by private methods implementation.
In particular:
Rename "fields" to "members" in the initializer so that we can
initialize both fields and private methods/accessors there,
for example:
instance_fields_initializer -> instance_members_initializer
InitializeClassFieldsStatement -> InitializeClassMembersStatement
Rename "private field" to "private name" for the private symbols
used to implement private fields so that we can use them to
store private methods/accessors later as well, for example:
private_field_name_var -> private_name_var
NewPrivateFieldSymbol -> NewPrivateNameSymbol
The follow-on is in
https://chromium-review.googlesource.com/c/v8/v8/+/1301018
The design doc is in
https://docs.google.com/document/d/1T-Ql6HOIH2U_8YjWkwK2rTfywwb7b3Qe8d3jkz72KwA/edit?usp=sharing
Bug: v8:8330
Change-Id: I1cdca8def711da879b6e4d67c5ff0a5a4a36abbe
Reviewed-on: https://chromium-review.googlesource.com/c/1312597
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Cr-Commit-Position: refs/heads/master@{#57289}
These tests are also used for streaming. This CL changes the test to
actually output the exception that unexpectedly happened.
R=ahaas@chromium.org
Bug: v8:7921
Change-Id: Ia9c91a7d3d9452f9c0180329a5434f049b56c3c8
Reviewed-on: https://chromium-review.googlesource.com/c/1319755
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57284}
Any sane platform would process foreground tasks in a FIFO order. Hence
our mock platform in the tests should do the same.
R=ahaas@chromium.org
Bug: v8:7921
Change-Id: Iafe1d9f2eb2a0c168f7e994f05b054756ef9e4af
Reviewed-on: https://chromium-review.googlesource.com/c/1319754
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57283}
in TurboFan, CSA, Wasm and compiler tests. Tagged values decompression
logic will depend on the machine type of the value being loaded so it must
be correct.
Bug: v8:7703
Change-Id: Ia9e7cc1e273e5a458d9de8aaa4adb0c970413b8b
Reviewed-on: https://chromium-review.googlesource.com/c/1319573
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57280}
The array length is modifiable by user code that is called as a
side-effect during the sorting algorithm. We thus cannot base any
guarantees on the current length, but must reference the initially-read
array length instead.
Note that even though the algorithm may read and write from beyond
the current array length value, this adheres to the spec, which only
requires accesses to be within the original array dimensions (i.e.: 0
<= i < original array length).
Bug: chromium:901633
Change-Id: Id765e80d4231ff6f2a73e040ec94c2b07f8c5b0f
Reviewed-on: https://chromium-review.googlesource.com/c/1317814
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57279}
- Fix ParseBCP47 to return just the extension. The second argument to
substr function is actually the length, not the end position of the
substring :')
- Remove extension keys that aren't part of the relevant extension keys
- Use 'ca' as an relevant extension key for DateTimeFormat
- Use the canonicalized locale tag after create the ICU locale is
created, rather than the input locale tag.
Bug: chromium:895942, v8:5751
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I189709714d847e684b04409b734a60ff04ed7dd2
Reviewed-on: https://chromium-review.googlesource.com/c/1291076
Reviewed-by: Frank Tang <ftang@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57274}
This is to ensure the snapshot is deterministic.
Internal fields can contain:
- reference to heap object
- embedder-defined aligned pointer
- a smi
The latter two are not distinguishable by V8, so if the serializer
callback returns non-zero value, we consider it to be an aligned pointer
and clear it to ensure that the snapshot does not contain memory
addresses that may not be deterministic. If the callback returns
{ nullptr, 0 } as result, we consider it to be a smi or some in-place
data that we then serialize verbatim.
R=jgruber@chromium.org
Bug: chromium:870584
Change-Id: I3cf9abf135ffd28d8138fa32636b12596b076e13
Reviewed-on: https://chromium-review.googlesource.com/c/1304441
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57272}
Currently to obtain a v8::Array out of a C array or a std::vector,
one needs to loop through the elements and call array->Set() multiple
times, and these calls go into v8::Object::Set() which can be slow.
This patch adds a new Array::New overload that converts a
Local<Value>* with known size into a Local<Array>.
Change-Id: I0a768f0e18eec51e78d58be455482ec6425ca188
Reviewed-on: https://chromium-review.googlesource.com/c/1317049
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Cr-Commit-Position: refs/heads/master@{#57261}
Unlike other v8::Context getter on v8::Isolate, the v8::Context returned
by GetEnteredOrMicrotaskContext may be non-NativeContext. However,
Blink implicitly assumes all v8::Context is backed by NativeContexts.
This CL updates GetEnteredOrMicrotaskContext() to check the resulting
Context is NativeContext, and updates callers of EnterMicrotaskContext
to use NativeContext.
Change-Id: Ifae528f4ce8feb067f4ad1a43330dc55f4a8ed79
Reviewed-on: https://chromium-review.googlesource.com/c/1301653
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Taiju Tsuiki <tzik@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57259}
This should allow for better parallelization when running these tests.
Change-Id: Ib3cae7d6e8f0d2608470ca616eeac7eecae3b7ab
Reviewed-on: https://chromium-review.googlesource.com/c/1318094
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57256}
In particular FunctionLiteral body. Now clients cannot use
function_literal->body() == nullptr anymore to figure out whether it was
preparsed; but have to check the eager compile hint.
Change-Id: Ia0d3a6b51c6fb7e803157e98a9d224224e03c8a7
Reviewed-on: https://chromium-review.googlesource.com/c/1317811
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57246}
A Property access is only a valid reference expression if the accessed object
is a valid expression.
Bug: v8:8409
Change-Id: I9bc9ac60ca3bf4e261d10af97aba18e9db2085ea
Reviewed-on: https://chromium-review.googlesource.com/c/1317816
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57244}
- Add the WeakRef class and its deref() function.
- Add WeakFactory.prototype.makeRef
- Implement the "keep during job" behavior for WeakRef constructor and deref().
- Here we keep the targets alive longer than until the end of the job
(microtask), contradicting the spec. However, this is probably the indended
behavior, see https://github.com/tc39/proposal-weakrefs/issues/39 .
BUG=v8:8179
Change-Id: I41990d41ac1799e34f675d8431b9a7aa7ed3d48d
Reviewed-on: https://chromium-review.googlesource.com/c/1306435
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57242}
This is resurrecting an optimization from the pre-torque version.
Avoid allocating another sequential string for the result when there's only one
element, just return the ToString-ed element. This not only saves time writing
to this destination string, but also reduce GC pressure.
The System Health Memory Benchmark (load:media:google_images) exposed this missing
optimization with a 15% regression in memory usage. Very large external strings
were being copied into V8's heap as sequential string.
Bug: chromium:896612
Change-Id: Ieb61906f64100cdc15bf96f3ebcccb1207f75356
Reviewed-on: https://chromium-review.googlesource.com/c/1316620
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Wong <peter.wm.wong@gmail.com>
Cr-Commit-Position: refs/heads/master@{#57241}
This is a reland of 7bd9eb7e1e. No changes
to that patch other than adding a test case. The bug that lead to the
revert has been fixed in 9bf8f72c5b.
Original change's description:
> Add fast paths to Array.from.
>
> This reuses the fast path from IterableToList for Array.from. The fast
> paths are taken when .from is called with the receiver Array and the only
> argument is the iterable (no mapping function or thisArg).
>
> Bug: v8:7980
> Change-Id: I975b0c5e3f838262d7b71ad4dec5111fb031d746
> Reviewed-on: https://chromium-review.googlesource.com/c/1297322
> Commit-Queue: Hai Dang <dhai@google.com>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#56993}
Bug: v8:7980
Change-Id: Id081837946c0989ec2b31ce991f48d09e0219b09
Reviewed-on: https://chromium-review.googlesource.com/c/1317586
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57240}
The relocation mode in question was by now only used in tests to model a
wrapper call from wrapper code (on the GC'ed heap) to a non-movable wasm
code object. Instead of using a special relocation mode, we switch to
using the existing {EXTERNAL_REFERENCE} mode similar to other static C++
functions called from generated code.
R=sigurds@chromium.org
BUG=v8:8238
Change-Id: I30af98b92aed207c52ccccaf018a455ecac39c2b
Reviewed-on: https://chromium-review.googlesource.com/c/1309821
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57239}
This introduces a new syntax for identifiers and calls: modulename::foo.
Such a name is resolved by trying to find a module modulename in one of
the parent scopes and looking for foo there. So this roughly corresponds
to C++ qualified namespace lookup.
Bug: v8:7793
Change-Id: Iedc43e6ebe125cd74575cbbcbf990bbcc0155a1f
Reviewed-on: https://chromium-review.googlesource.com/c/1309818
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57238}
The fast paths for sets and maps did not support allocation in
large object space, yet they were taken in these cases. This CL
adds support, simply by passing the kAllowLargeObjectAllocation
argument to AllocateJSArray.
It also changes the fast path for strings to use this argument
rather than take the slow path.
Bug: v8:7980, v8:8410
Change-Id: I18e88cb4ceb7ebeca250edd8b8b0eb401fdbd6e4
Reviewed-on: https://chromium-review.googlesource.com/c/1317507
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57232}
- Name lookup in module scopes has namespace semantics now: All
overloads from all parent modules are combined before overload
resolution.
- Allow overloads of different callables: runtime-functions,
macros, builtins, and generics.
- The duplication between the DeclarationVisitor and the
ImplementationVisitor is removed: The DeclarationVisitor creates
declarables for everything except for implicit generic specializations.
The ImplementationVisitor iterates over declarables.
The DeclarationVisitor only looks at the header of declarations, not
at the body.
- Modules become Declarable's, which will enable them to be nested.
- Modules replace the existing Scope chain mechanism, which will make it
easier to inline macros.
- The DeclarationVisitor and Declarations become stateless. All state is
moved to contextual variables and the GlobalContext.
- Implicit specializations are created directly from the
ImplementationVisitor. This will enable template parameter inference.
- As a consequence, the list of all builtins is only available after the
ImplementationVisitor has run. Thus GenerateBuiltinDefinitions has to
move to the ImplementationVisitor. Also, this makes it necessary to
resolve the link from function pointer types to example builtins only
at this point.
Bug: v8:7793
Change-Id: I61cef2fd3e954ab148c252974344a6e38ee2d01d
Reviewed-on: https://chromium-review.googlesource.com/c/1304294
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57231}
This is a reland of 7350e7b220
Disabled LayoutTest that was causing issues and will rebaseline once this has rolled.
Original change's description:
> Get BytecodeArray via current frame where possible.
>
> With BytecodeArray flushing the SFI->BytecodeArray pointer will become pseudo weak.
> Instead of getting the bytecode array from the SFI, get it from the frame instead
> (which is a strong pointer). Note: This won't actually change behaviour since the
> fact that the bytecode array was on the frame will retain it strongly, however it
> makes the contract that the BytecodeArray must exist at these points more explicit.
>
> Updates code in runtime-profiler.cc, frames.cc and runtime-test.cc to do this.
>
> BUG=v8:8395
>
> Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel
> Change-Id: Id7a3e6857abd0e89bf238e9b0b01de4461df54e1
> Reviewed-on: https://chromium-review.googlesource.com/c/1310193
> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Mythri Alle <mythria@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57198}
TBR=mythria@chromium.org
Bug: v8:8395
Change-Id: I63044138f876a1cdfb8bb71499732a257f30d29a
Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel
Reviewed-on: https://chromium-review.googlesource.com/c/1314336
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57219}
- Avoid allocating AstRawString in the preparser
- Use fast LiteralEquals to compare the directive.
Bug: chromium:901250
Change-Id: I178aca812f6c0ffa28d7f48b707316a5a99a2ac0
Reviewed-on: https://chromium-review.googlesource.com/c/1314570
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57217}
This makes clear that some benchmarks where Array.from is used to
clone the array are very fast because the array is COW, and the
added benchmarks for non-COW arrays are not as fast. COW-ness does
not affect benchmarks where Array.from is called with a callback
function.
Change-Id: Ie9dd5507df5dd7501ac955dba4d3682c4a54548e
Reviewed-on: https://chromium-review.googlesource.com/c/1314333
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Hai Dang <dhai@google.com>
Cr-Commit-Position: refs/heads/master@{#57208}
We don't have any tests which run multiple isolates concurrently and
starts a profiler in each of them. This test is a basic starting point
so that we can check for flakiness caused by races or interrupts.
The profiling mechanisms should be totally separate for two isolates,
so this should (theoretically) not cause any problems.
A use case for multiple isolates is for workers or in Node via cloud
functions, so we should get some more coverage here.
Change-Id: I0ca6d1296bc7bae7238c51b4487259d09e38d690
Reviewed-on: https://chromium-review.googlesource.com/c/1309823
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57207}
Restructure the code a little, and change how we detect sloppy block function
redeclaration so we don't dereference a possibly nullptr function.
Bug: chromium:900786
Change-Id: Ief124fe767603ca36f4dc8865c4aeb3e0635b4cf
Reviewed-on: https://chromium-review.googlesource.com/c/1314331
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57206}
This reverts commit 7350e7b220.
Reason for revert: Braking layout test, blocking the roll, see
https://bugs.chromium.org/p/v8/issues/detail?id=8405
Original change's description:
> Get BytecodeArray via current frame where possible.
>
> With BytecodeArray flushing the SFI->BytecodeArray pointer will become pseudo weak.
> Instead of getting the bytecode array from the SFI, get it from the frame instead
> (which is a strong pointer). Note: This won't actually change behaviour since the
> fact that the bytecode array was on the frame will retain it strongly, however it
> makes the contract that the BytecodeArray must exist at these points more explicit.
>
> Updates code in runtime-profiler.cc, frames.cc and runtime-test.cc to do this.
>
> BUG=v8:8395
>
> Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel
> Change-Id: Id7a3e6857abd0e89bf238e9b0b01de4461df54e1
> Reviewed-on: https://chromium-review.googlesource.com/c/1310193
> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Mythri Alle <mythria@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57198}
TBR=rmcilroy@chromium.org,mythria@chromium.org
Change-Id: Ie5db0ec1d68ca01d62e9880a4476704ad4d013b5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8395
Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel
Reviewed-on: https://chromium-review.googlesource.com/c/1314330
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57205}
The fast-path in the `ArrayPrototypeLastIndexOf` torque implementation
didn't check that the `fromIndex` is within the bounds of the JSArray
_AFTER_ the call to ToInteger, which can have arbitrary side-effects,
i.e. it can change the length of the array.
R=yangguo@chromium.org
Bug: chromium:898785
Change-Id: I7ef84143ec8c33148f6e9d451bd52769d5074fb4
Reviewed-on: https://chromium-review.googlesource.com/c/1314329
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57204}
To fix the to-be-landed-soon test262 test failure in
test262/intl402/DateTimeFormat/prototype/resolvedOptions/order
The spec change from "any order" to "table " order
in https://github.com/tc39/ecma402/pull/279
Change the order of creating each property
Move the code inside SetPropertyFromPattern into ResolvedOptions
so we can easily follow the spec.
Bug: v8:8379
Change-Id: Ibe9ea72a2557474fd81a9f350fffa298f4b7738f
Reviewed-on: https://chromium-review.googlesource.com/c/1302803
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57200}
With BytecodeArray flushing the SFI->BytecodeArray pointer will become pseudo weak.
Instead of getting the bytecode array from the SFI, get it from the frame instead
(which is a strong pointer). Note: This won't actually change behaviour since the
fact that the bytecode array was on the frame will retain it strongly, however it
makes the contract that the BytecodeArray must exist at these points more explicit.
Updates code in runtime-profiler.cc, frames.cc and runtime-test.cc to do this.
BUG=v8:8395
Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Id7a3e6857abd0e89bf238e9b0b01de4461df54e1
Reviewed-on: https://chromium-review.googlesource.com/c/1310193
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57198}
Change the order of creating property for the return object
of Intl.NumberFormat.property.resolvedOptions()
according to the table in the spec.
This is due to spec change in from "any order" to "table "
in https://github.com/tc39/ecma402/pull/279
Failure w/o fixing it will happen once we land
test262/intl402/NumberFormat/prototype/resolvedOptions/order
Bug: v8:8378
Change-Id: Ic68fcfeba78af87d9bbd13c935ad9a91e76f4965
Reviewed-on: https://chromium-review.googlesource.com/c/1303195
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57195}
This was removed from gtest and is necessary to roll gtest in
Chromium.
TBR=adamk@chromium.org
Bug: chromium:893369
Change-Id: I21762aa65ab2fc3f52731e7e812f0bf155f285e6
Reviewed-on: https://chromium-review.googlesource.com/c/1310598
Commit-Queue: Fabrice de Gans-Riberi <fdegans@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57193}
This is preparation to support the Torque port of Object.fromEntries,
including tests to make sure that the interface of the iterator functions
is correct and compiles when used.
Change-Id: I2a30ef80a80f42d4744a92746c8cd383abc10c19
Reviewed-on: https://chromium-review.googlesource.com/c/1303726
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57192}
Fix the broken test of the to-be-landed
test262/intl402/ListFormat/prototype/resolvedOptions/order
The ecma402 spec change from "any order" to "table " order
in https://github.com/tc39/ecma402/pull/279 the intl* proposals
will follow.
Bug: v8:7871
Change-Id: If47ab44791920c23fe2e1101e60205589d0ac093
Reviewed-on: https://chromium-review.googlesource.com/c/1302058
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57191}
The Intl.RelativeTimeFormat.prototype.formatToParts does not
correctly implement the spec. Change the implementation by refactoring
the JSNumber::FormatToParts and delegate part of the
JSRelativeTimeFormat::FormatToParts to call the new refactored function.
Bug: v8:8382
Change-Id: Ie153aa256ca78ce71c92efcdad55262564349ca9
Reviewed-on: https://chromium-review.googlesource.com/c/1305936
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57188}
This is a reland of 0f15ed05b9
Original change's description:
> [torque]: Implement catch handlers for try blocks
>
> In addition (and in combination), try statements now support "catch"
> clauses at the end that catch JavaScript exceptions throw by any builtin
> or runtime function contained in the try block:
>
> try {
> ThrowTypeError(context, ...);
> }
> catch (e) {
> // e has type Object
> }
>
> Bug: v8:7793
> Change-Id: Ie285ff888c49c112276240f7360f70c8b540ed19
> Reviewed-on: https://chromium-review.googlesource.com/c/1302055
> Commit-Queue: Daniel Clifford <danno@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57169}
Bug: v8:7793
Change-Id: I3c4182303acfdfa625654976bec372cf531d954f
Reviewed-on: https://chromium-review.googlesource.com/c/1310295
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57184}
- introduced ValueMirror interface, this interface contains methods to generate
different protocol entities,
- introduced DebugPropertyIterator, this iterator iterates through object properties
in the following order: exotic indices, enumerable strings, all other properties,
- removed all injected script infra, e.g. closure compiler,
R=dgozman@chromium.orgTBR=yangguo@chromium.org
Bug: chromium:595206
Change-Id: I030fdb3a80074ca6edd4749f86b39b590776ae6f
Reviewed-on: https://chromium-review.googlesource.com/c/1310056
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57181}
JSON format does not support \xNN encoding. Use \uNNNN instead.
+ Add myself to the src/tracing/OWNERS
BUG=chromium:895974
Change-Id: I410a09d44af08b61837579fa09d263d897b9385e
Reviewed-on: https://chromium-review.googlesource.com/c/1303535
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57180}
This reverts commit 9392727982.
Reason for revert: Speculative revert, seems the most probable cause of
https://bugs.chromium.org/p/v8/issues/detail?id=8396
Revert "[ubsan] More Object** replacements"
This reverts commit 5cce694d60.
Speculative revert.
NOTRY=true
Bug: v8:8396
Change-Id: I9c2866a9db707cd03e4cf90822acde20813cebf0
Reviewed-on: https://chromium-review.googlesource.com/c/1309761
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57174}
In addition (and in combination), try statements now support "catch"
clauses at the end that catch JavaScript exceptions throw by any builtin
or runtime function contained in the try block:
try {
ThrowTypeError(context, ...);
}
catch (e) {
// e has type Object
}
Bug: v8:7793
Change-Id: Ie285ff888c49c112276240f7360f70c8b540ed19
Reviewed-on: https://chromium-review.googlesource.com/c/1302055
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57169}
Now that lazy deserialization has been removed, we can roll back all
the mechanisms we introduced to support lazy single-builtin
deserialization.
This CL moves serialized builtin code objects (i.e.
off-heap-trampolines in most cases) back into the startup snapshot.
Support classes for builtin serialization and deserialization, as well
as the builtins snapshot itself are removed. Templatization on the
allocator class is removed as well.
Tbr: delphick@chromium.org
Bug: v8:6666, v8:7990
Change-Id: I2a910f8d3278b7e27b5f18ad408361ebd18871cc
Reviewed-on: https://chromium-review.googlesource.com/c/1304539
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57160}
CanCover is not transitive. The counter example are Nodes A,B,C such
that CanCover(A, B) and CanCover(B,C) and B is pure. In this case the
effect level of A and B might differ.
This CL adds a missing CanCover check to a case of shift reduction where
we assumed transitivity.
Change-Id: I9f368ffa6907d2af21bbc87b3e6570d0d422e125
Bug: v8:8384
Reviewed-on: https://chromium-review.googlesource.com/c/1307419
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57157}
This patch adds a micro-benchmark comparing Array#indexOf,
Array#includes, and a roughly equivalent `for` loop.
The benchmark can be used to measure any Array#{indexOf,includes}
optimizations we implement in the future.
Test:
tools/run_perf.py --binary-override-path=out/x64.release/d8 \
--filter=JSTests/ArrayIndexOfIncludesPolymorphic \
--extra-flags=--trace-turbo test/js-perf-test/JSTests.json
Bug: v8:8388
Change-Id: I9150d3e56e9d4cb2ffe6baa50ee8cddf8df0ac74
Reviewed-on: https://chromium-review.googlesource.com/c/1307430
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57156}
mostly in HandleScopeImplementer and related classes.
Bug: v8:3770
Change-Id: I9da757c60be99434b711fe74a5f5d296a0f08b22
Reviewed-on: https://chromium-review.googlesource.com/c/1300854
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57154}
as part of the continuing quest to get rid of Object*/Object** entirely.
Since it fits nicely, this CL as a bonus includes the planned change to
make Handle::location() return an Address*, in the process dropping the
temporarily needed duplicate Handle::location_as_address_ptr().
Bug: v8:3770
Change-Id: I87480289ce2a62ea1ae503e73d179256b7108c5c
Reviewed-on: https://chromium-review.googlesource.com/c/1298389
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57153}
- introduced ValueMirror interface, this interface contains methods to generate
different protocol entities,
- introduced DebugPropertyIterator, this iterator iterates through object properties
in the following order: exotic indices, enumerable strings, all other properties,
- removed all injected script infra, e.g. closure compiler,
R=dgozman@chromium.orgTBR=yangguo@chromium.org
Bug: chromium:595206
Change-Id: Idcfc04489ee52e015ad1d1d191c3474cc65e63f2
Reviewed-on: https://chromium-review.googlesource.com/c/1308353
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57150}
We didn't check if the input typed array was neutered before going to
the fast path, so we hit a CHECK in this case.
Fix this by just checking if the buffer was neutered and then going to
the 'check iterator' case if it is. This will cause a TypeError via
IterableToList, which was the same as the behavior before the
optmization was landed.
Bug: chromium:899519
Change-Id: I09e6389ea2ab1e3bef01e616721b48a9b66c1b2a
Reviewed-on: https://chromium-review.googlesource.com/c/1307422
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57137}
to control how the memory for Isolate object is allocated.
This is the support for pointer-compression friendly heap layout.
Bug: v8:8182
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ida36b81ee22bd865005c394748b62d4c0897d746
Reviewed-on: https://chromium-review.googlesource.com/c/1251548
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57131}
Speculatively mitigation for renderer hangs in Scavenger
while waiting in a barrier.
Bug:
Change-Id: I48520e0ffd99123dbe352d2012c911186c187e4b
Reviewed-on: https://chromium-review.googlesource.com/c/1296463
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57130}
For memory limit checks, we should use the minimum of the
--wasm-max-mem-pages flag and kV8MaxWasmMemoryPages. The former is a
limit set by the user, the latter is the maximum we can handle
internally.
R=titzer@chromium.org
Bug: chromium:898677
Change-Id: I3c549f4e90dd016b5d07475d9353f30134f76dcc
Reviewed-on: https://chromium-review.googlesource.com/c/1305274
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57127}
This is a reland of bf3d7b9ae3
Original change's description:
> [wasm] Store compile errors in CompilationState
>
> We are currently storing compilation errors in the individual
> compilation units and pass it to the ErrorThrower during finishing.
> This CL changes that to store errors on the CompilationState directly.
> From there, it is propagated to the ErrorThrower in the compilation
> state callback.
> This removes more work from the finisher task and slims down the
> WasmCompilationUnits.
>
> R=mstarzinger@chromium.org
>
> Bug: v8:8343, v8:7921
> Change-Id: Id332add43d4219d2a30fee653ed4e53a9b2698d9
> Reviewed-on: https://chromium-review.googlesource.com/c/1303720
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57091}
Bug: v8:8343, v8:7921
Change-Id: Iaa5c89d224cb2bcfca2d12eba305413a9ad95618
Reviewed-on: https://chromium-review.googlesource.com/c/1304547
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57126}
BinaryNumberOpTyper was not monotonic: if one input changes
from Number to Numeric, while the other input stays BigInt,
the result would change from Number to BigInt.
We have some fuzzing tests for monotonicity but unfortunately
they never generated the inputs required for triggering this bug.
We'll look into improving our tests.
Bug: v8:8380
Change-Id: I7320d9ae4b89ad8798bf9e97cc272edba2162a77
Reviewed-on: https://chromium-review.googlesource.com/c/1307418
Commit-Queue: Hai Dang <dhai@google.com>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57125}
This is the V8 side of the implementation. You can take a look at a
prototype of the Chrome side changes in https://crrev.com/c/1273043.
Chrome could also use V8's default implementation of the trap handler,
see https://crrev.com/c/1290952.
Bug: v8:6743
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I9bb3e717db17a4f30bbb8acfd80a1f6510d463ff
Reviewed-on: https://chromium-review.googlesource.com/c/1283111
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57117}
These tests rely on dropping references to objects either explicitly ("o =
null;") or implicitly ("o goes out of scope") and then doing gc. It's essential
that we haven't already marked the WeakCell pointing to o and marked it alive
before dropping the reference.
BUG=v8:8179
Change-Id: Ie0b73f05c4baa937cf6f28325454ff9087a71a2c
Reviewed-on: https://chromium-review.googlesource.com/c/1306437
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57115}
If a caller starts the sampling heap profiler and takes a snapshot, and
then deletes the snapshot before the sampling has completed, a
use-after-free will occur on the StringsStorage pointer.
The same issue applies for StartTrackingHeapObjects which shares the
same StringsStorage object.
Bug: v8:8373
Change-Id: I5d69d60d3f9465f9dd3b3bef107c204e0fda0643
Reviewed-on: https://chromium-review.googlesource.com/c/1301477
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57114}
This adds appropriate LoopExit nodes for the JSCallReducer lowerings of
the following higher order Array builtins:
- Array.prototype.every()
- Array.prototype.find()
- Array.prototype.findIndex()
- Array.prototype.some()
Loop peeling allows TurboFan to make loop invariant operations in the
callback passed to the higher order builtin fully redundant, and thus
completely eliminate the loop invariant code from the subsequent loop
iterations. This can have a huge performance impact, depending on what
kind of code runs inside of the callback. For example, on the micro-
benchmarks outlined in http://crbug.com/v8/8273 we go from
forLoop: 364 ms.
every: 443 ms.
some: 432 ms.
find: 522 ms.
findIndex: 437 ms.
to
forLoop: 369 ms.
every: 354 ms.
some: 348 ms.
find: 419 ms.
findIndex: 360 ms.
which is 20% improvement, and essentially brings the Array builtins (the
appropriate ones Array#some() and Array#every() in this case) on par
with the hand-written `for`-loop.
Bug: v8:1956, v8:8273
Change-Id: I9d32736e5402807b4ac79cd5ad15ceacd1945681
Reviewed-on: https://chromium-review.googlesource.com/c/1305935
Reviewed-by: Daniel Clifford <danno@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57110}
and use Mixin pattern with linear inheritance instead. This will
allow to customize the way the Isolate is created.
Bug: v8:8238
Change-Id: Ic611df123653af3a0f2271394387492e440b5ea8
Reviewed-on: https://chromium-review.googlesource.com/c/1306433
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57106}
In Chromium tree, ICU is rolled to 63.1. And, auto-roller will soon
try to roll ICU in v8 to 63.1. Due to a nodejs trybot issue,
autoroll needs a manual intervention. In the meantime, this CL
will get rid of other blocking issues for ICU update.
Prepare for the ICU roll by revising test/intl as following:
* Line breaking loose mode is now supported in the
Chromium's copy of ICU. Adjust the test expectation.
* ICU's uloc_* can handle overlong locale ids. Drop tests
that are not valid any more.
Once ICU is rolled, a couple of TSAN-suppressed tests can
be unsuppressed, but that has to be done in a separate CL.
Bug: chromium:893196,v8:8272, v8:8110
Test: intl/*, test262/test402/*
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I17f11457b61376b1e8d41bbbc951fa6cd3355a54
Reviewed-on: https://chromium-review.googlesource.com/c/1289369
Commit-Queue: Jungshik Shin <jshin@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57105}
This introduces Word64 support for the CheckBounds operator, which now
lowers to either CheckedUint32Bounds or CheckedUint64Bounds after the
representation selection. The right hand side of CheckBounds can now
be any positive safe integer on 64-bit architectures, whereas it remains
Unsigned31 for 32-bit architectures. We only use the extended Word64
support when the right hand side is outside the Unsigned31 range, so
for everything except DataViews this means that the performance should
remain the same. The typing rule for the CheckBounds operator was
updated to reflect this new behavior.
The CheckBounds with a right hand side outside the Unsigned31 range will
pass a new Signed64 feedback kind, which is handled with newly introduced
CheckedFloat64ToInt64 and CheckedTaggedToInt64 operators in representation
selection.
The JSCallReducer lowering for DataView getType()/setType() methods was
updated to not smi-check the [[ByteLength]] and [[ByteOffset]] anymore,
but instead just use the raw uintptr_t values and operate on any value
(for 64-bit architectures these fields can hold any positive safe
integer, for 32-bit architectures it's limited to Unsigned31 range as
before). This means that V8 can now handle huge DataViews fully, without
falling off a performance cliff.
This refactoring even gave us some performance improvements, on a simple
micro-benchmark just exercising different DataView accesses we go from
testDataViewGetUint8: 796 ms.
testDataViewGetUint16: 997 ms.
testDataViewGetInt32: 994 ms.
testDataViewGetFloat64: 997 ms.
to
testDataViewGetUint8: 895 ms.
testDataViewGetUint16: 889 ms.
testDataViewGetInt32: 888 ms.
testDataViewGetFloat64: 890 ms.
meaning we lost around 10% on the single byte case, but gained 10% across
the board for all the other element sizes.
Design-Document: http://bit.ly/turbofan-word64
Bug: chromium:225811, v8:4153, v8:7881, v8:8171, v8:8383
Change-Id: Ic9d1bf152e47802c04dcfd679372e5c85e4abc83
Reviewed-on: https://chromium-review.googlesource.com/c/1303732
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57095}
