D3.v5 needs a merge before applying combined update and
enter actions.
Bug: v8:7327
Change-Id: If5a044c18e4229c5eadb18c18aea191bcbacef32
Reviewed-on: https://chromium-review.googlesource.com/1095188
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53632}
- Improve typing by introducing PhaseView interface.
- Recalculate scale extent after resizing.
- Fix null sentinel which should have been undefined.
Bug: v8:7327
Change-Id: I06881ac3f5681cb419b5da9c6b8aa3a6b2652088
Reviewed-on: https://chromium-review.googlesource.com/1090914
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53631}
This CL updates the d3.js library to version 5.4. The most notable
change is that the library can now distinguish between click and drag
events if an element supports both selection via click and displacement
via drag.
Curiously, npm created a 'package-lock.json', which is ~500 lines, and
which is supposed to be checked into the repository according to documentation.
Change-Id: Ifabd236296d951f390e0a1516d89e73138ce1713
Reviewed-on: https://chromium-review.googlesource.com/1076234
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53604}
This is a reland of 91bab5588c
This CL contains two major changes w.r.t to the original CL:
The random state is removed from the Smi root list and we pre-seed the RNG
on each sort with the length of the array.
To cut down on the length of the arguments list and to keep track of the
random state across recursive calls, we move most of the sort arguments into
a FixedArray and reload from the array for each recursion.
Original change's description:
> [array] Use random middle element to determine pivot during sorting
>
> This CL adds a "random state" to the Smi Root list and implements a
> basic Linear congruential pseudo random number generator in Torque.
>
> The RNG is used to determine the pivot element for sorting. This will
> prevent the worst cases for certain data layouts.
>
> Drive-by-fix: Make sorting of ranges and execution pauses for profviz
> deterministic by adding a secondary sorting criteria.
>
> Bug: v8:7382
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: Ieb871e98e74bdb803f821b0cd35d2f67ee0f2868
> Reviewed-on: https://chromium-review.googlesource.com/1082193
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Commit-Queue: Simon Zünd <szuend@google.com>
> Cr-Commit-Position: refs/heads/master@{#53524}
Bug: v8:7382
Change-Id: Ia7bef7ed1c0e904ffe43bc428e702f64f9c6a60b
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/1087888
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Simon Zünd <szuend@google.com>
Cr-Commit-Position: refs/heads/master@{#53583}
This CL fully implements the DataView getters for the Uint8, Int8,
Uint16, Int16, Uint32 and Int32 types in Torque, and removes
the runtime implementation that is not needed anymore.
There should be a light but visible performance increase compared to
the former runtime implementation.
Change-Id: I7d85097fd5953b9629f3ac6bed93b068889712b2
Reviewed-on: https://chromium-review.googlesource.com/1078349
Commit-Queue: Théotime Grohens <theotime@google.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53553}
Enabling once again post-branch point. This CL is expected to come
with major memory improvements and slight performance regressions.
Recent work on performance improvements has focused on x64, hence only
enabling there for now.
Bug: v8:6666
Change-Id: I29dc55eb4e592465073559647e280f74253b73e1
Reviewed-on: https://chromium-review.googlesource.com/1076247
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53544}
This reverts commit 91bab5588c.
Reason for revert: Seems to break a layout test:
https://ci.chromium.org/buildbot/client.v8.fyi/V8-Blink%20Linux%2064/23895
See also:
https://github.com/v8/v8/wiki/Blink-layout-tests
Original change's description:
> [array] Use random middle element to determine pivot during sorting
>
> This CL adds a "random state" to the Smi Root list and implements a
> basic Linear congruential pseudo random number generator in Torque.
>
> The RNG is used to determine the pivot element for sorting. This will
> prevent the worst cases for certain data layouts.
>
> Drive-by-fix: Make sorting of ranges and execution pauses for profviz
> deterministic by adding a secondary sorting criteria.
>
> Bug: v8:7382
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: Ieb871e98e74bdb803f821b0cd35d2f67ee0f2868
> Reviewed-on: https://chromium-review.googlesource.com/1082193
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Commit-Queue: Simon Zünd <szuend@google.com>
> Cr-Commit-Position: refs/heads/master@{#53524}
TBR=hpayer@chromium.org,cbruni@chromium.org,jgruber@chromium.org,szuend@google.com
Change-Id: I54f5d3f719428fd089ff12ff217d1c819f9ad1f7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7382
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/1088506
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53542}
DevTools may process another protocol message during API interrupt this
API may lead to createInjectedScript reentrance and will fail.
Let's postpone interrupts.
Bug: chromium:846099
Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ia06e034a6287087e4674559d8911d2f4a0b1b459
Reviewed-on: https://chromium-review.googlesource.com/1086372
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53531}
This CL adds a "random state" to the Smi Root list and implements a
basic Linear congruential pseudo random number generator in Torque.
The RNG is used to determine the pivot element for sorting. This will
prevent the worst cases for certain data layouts.
Drive-by-fix: Make sorting of ranges and execution pauses for profviz
deterministic by adding a secondary sorting criteria.
Bug: v8:7382
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Ieb871e98e74bdb803f821b0cd35d2f67ee0f2868
Reviewed-on: https://chromium-review.googlesource.com/1082193
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Simon Zünd <szuend@google.com>
Cr-Commit-Position: refs/heads/master@{#53524}
This is a reland of 515cc07d28
Original change's description:
> [csa] Ensure the requested allocation size fits in a Smi
>
> In CSA::AllocateRaw, ensure that the given allocation size fits into a
> Smi.
>
> Bug: chromium:848672
> Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
> Change-Id: I4e74791296163188b1ca77cae8226a9833fba8ef
> Reviewed-on: https://chromium-review.googlesource.com/1084930
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53495}
TBR=yangguo@chromium.org,ishell@chromium.org
Bug: chromium:848672
Change-Id: I135868390784a0ee95ff42224dd00f66f3bf2d80
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/1086828
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53512}
In the process, also fix the make-torque-parser.py script to work in its new
location.
Bug: v8:7793
Change-Id: I376a5f73ec9f7cc87995928397c6e399b1a490d8
Reviewed-on: https://chromium-review.googlesource.com/1084838
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53504}
Adds a new flag v8_deprecate_get_isolate that marks
HeapObject::GetIsolate/GetHeap, Handle<T>(T*) and handle<T>(T*) as
[[deprecated]]. Deprecation warnings are not converted to errors so an
entire build can be completed to collect all the warnings.
Also adds a new script tools/collect_deprecation_stats.sh which runs the
build (assuming the flag is set) and collects the number of uses of
deprecated functions. E.g. at the time of upload, we get:
Total deprecated calls: 2265
515 GetHeap
842 GetIsolate
210 handle
698 Handle
Bug: v8:7786
Change-Id: I7043c597fa90bc77759a357ef3c2a5fefe933491
Reviewed-on: https://chromium-review.googlesource.com/1082478
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53475}
Compress the parameter count (and function length) stored in
SharedFunctionInfo to a uint16_t. This limits us to 2^16 - 1 parameters
per function, minus one for the "don't adapt arguments" sentinel value,
which is one fewer than Code::kMaxArguments was already. Anyway, 65534
arguments should be enough for anyone!
This drops SFI size by 4 bytes.
Bug: chromium:818642
Change-Id: I126bfb24453dcdc5087a104d3a12cf195a56fa9f
Reviewed-on: https://chromium-review.googlesource.com/1076627
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53447}
This CL creates the "tools/torque" directory. It moves the existing
two scripts (making the parser and formatting Torque code) into that
director.
The extension lives in "tools/torque/vscode-torque" and currently only
provides basic syntax highlighting support. The easiest way to
install the extension is to simply create a symlink into your local
vscode extension directory (see README.md).
R=jgruber@chromium.org, tebbi@chromium.org
Change-Id: Ifc22b615341ed18f91c9b046090f569fcc083ab6
Reviewed-on: https://chromium-review.googlesource.com/1076548
Commit-Queue: Simon Zünd <szuend@google.com>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53421}
This makes the WasmCompileLazy builtin push a new WASM_COMPILE_LAZY
frame type. We can thereby remove the workaround to return a relocated
instance from the underlying runtime function. It also removes the last
remaining embedded code objects from {WasmCode} objects.
R=titzer@chromium.org
Change-Id: Ic9c3f59339e8d7bed53ea0ed70ef50dfe640f1c6
Reviewed-on: https://chromium-review.googlesource.com/1073455
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53405}
Moving them away was a mistake. Fixing this enables getting rid of a bunch of
includes.
BUG=v8:5402
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I5482eab4281c7450350f058fe0a04a6f375ea082
Reviewed-on: https://chromium-review.googlesource.com/1070188
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53328}
It seems that the output on snapshot failure has changed, so failed
snapshots were no longer being automatically re-run in gdb.
Change-Id: I321a6055b5683db31d215b9c30827f4badca3df7
Reviewed-on: https://chromium-review.googlesource.com/1066058
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53269}
Shortcuts e and c select (and make visible) the next effect/control
node downwards in the chain; ALT+e/c moves upward.
Additionally, the graph bounding box is redetermined every time the
graph is redrawn (instead of only when relayouted).
Bug: v8:7327
Change-Id: If01b16fc25273703e25e429bdc36753a2fa87f7c
Reviewed-on: https://chromium-review.googlesource.com/1064210
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53259}
This also includes the precise reducer name. Currently the information
is available in the node tooltip in turbolizer. The new shortcut 's' in
the graph view selects the nodes the currently selected nodes were created
from.
Bug: v8:7327
Change-Id: I7ca7327d0cfa112972e3567df6e4a223c8eff3c0
Reviewed-on: https://chromium-review.googlesource.com/1064059
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53258}
This is to speed up slow nosnap runs. Allocation verification is covered by
running mksnapshot on other builders.
Change-Id: I9c286f7dd4abac9cf1be45be4a483a7b36d09f8a
Reviewed-on: https://chromium-review.googlesource.com/1059113
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53234}
This CL adds support for inlined functions in Turbolizer. It is also a
refactoring of the Turbolizer code-base. Most importantly, handling of
source positions changed to exact source positions, and not code ranges.
This improves selection interoperability between different phase views.
A separate CL changes the Turbolizer JSON format to include inlining
information. This Turbolizer update, however, is intended to be backwards
compatible with the JSON format Turbolizer generated before the JSON
format change.
Bug: v8:7327
Change-Id: Ic67506a6f3a36fe98c012b1e76994972779c1fd2
Reviewed-on: https://chromium-review.googlesource.com/1032784
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53213}
https://github.com/tc39/proposal-intl-locale
Rename locale property to baseName to better reflect the intented use case and the change in spec.
TBR: bmeurer@chromium.org
Bug: v8:7684
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I91b630b49ce73abcebd6040ec968c91d75cff879
Reviewed-on: https://chromium-review.googlesource.com/1014411
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53193}
In particular:
* number of pointer fields
* number embedder fields
* number boxed fields
* number of unboxed double field
* number of raw data fields
Bug: v8:7703
Change-Id: I22a310d941317a0f34f67536e55fbfab5f5354cd
Reviewed-on: https://chromium-review.googlesource.com/1056532
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53188}
This is needed since depot_tools may not be in PATH on LUCI bots. Using the copy
of depot_tools that contains the recipes is also incorrect as it is not
guaranteed to contain binaries that do not have corresponding recipe API, which
does not apply to script called from a recipe. This also protects our release
scripts from breaking due to arbitrary changes to depot_tools.
Chromium also pins depot_tools for similar reasons:
https://cs.chromium.org/chromium/src/DEPS?l=525&rcl=f24fa931ae08b0e42aae2d13034229088179da7fR=machenbach@chromium.org
Bug: chromium:831171
Change-Id: I393052b1c489d25e2e3fa173149635448e9bd2dc
Reviewed-on: https://chromium-review.googlesource.com/1054676
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53179}
Moves all Oddballs, empty_feedback_metadata, lots of symbols and
immortal heap numbers and several other empty collection objects.
RO_SPACE NEW_SPACE OLD_SPACE CODE_SPACE MAP_SPACE LO_SPACE
old 31800 0 241976 24032 176 0
new 35080 0 238680 24032 176 0
diff +3280 -3296
Reland of https://chromium-review.googlesource.com/c/v8/v8/+/1025996,
without the empty_property_dictionary which is not read-only.
Bug: v8:7464
Change-Id: I84840d86eb3e5906ddb8b4c4e9e70bfec0cf78bc
Reviewed-on: https://chromium-review.googlesource.com/1049611
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53096}
D8 enables the Wasm trap handler by default now, but we need to make sure the
older bounds check case still gets test coverage too, as bounds checks will
continue to be a supported configuration.
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I5b0bdded6929a9b3a8480e87d038398b8d2a0fd8
Reviewed-on: https://chromium-review.googlesource.com/1048835
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Eric Holk <eholk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53078}
When a custom workdir is used for the checkout, it differs from the workdir
for temporary state files. In this case, code ensuring the existing of the
parent dir wasn't executed.
NOTRY=true
Bug: v8:7735
Change-Id: Idc81b50bb8f880dea45fde08ba4d437c91e96a37
Reviewed-on: https://chromium-review.googlesource.com/1049552
Reviewed-by: Michael Hablich <hablich@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53068}
Embedded builtins have been regressing benchmarks incrementally as
more and more builtins were moved to the embedded blob. This has made
recognition and analysis of other possible performance issues more
difficult.
Let's disable embedded builtins until their performance is at an
acceptable level.
Bug: v8:6666
Change-Id: I21a1274f3d5a65063127b0a8604df6dd0d3c0c95
Reviewed-on: https://chromium-review.googlesource.com/1049550
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53062}
This moves the internal fields on {WasmExportedFunction} objects from
being properties with private symbols to a separate structure instead.
The new {WasmExportedFunctionData} structure can hang off the underlying
shared function info which is created for each exported function. This
reduces the number of transitions, speeds up instantiation, and makes it
easier to reach them from generated code (in the future).
R=titzer@chromium.org
BUG=v8:7424
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Iaa733b6c9f7bea96246d6680756aa7101669a1a9
Reviewed-on: https://chromium-review.googlesource.com/1047025
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53040}
Creating a new instance from a v8::Function will invoke its
constructor. If it is an API callback that has not been marked as
kHasNoSideEffect, this CL introduces a way to invoke it without
throwing.
Calls within the constructor are still checked for side effects.
Bug: chromium:829571
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ia4e410d487e2847bc511cb96f0be30a3563991f6
Reviewed-on: https://chromium-review.googlesource.com/1034116
Commit-Queue: Erik Luo <luoe@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53003}
There are likely cleanups that can be done after this CL:
- context-related functions in the interpreter and compiler take ScopeInfo as
well as ScopeType and slot-count as input. The latter 2 should be directly
derived from the former. We should be able to drop FunctionContextParameters.
- ContextExtension is probably not needed anymore, since we now always have the
correct scope_info directly in the SCOPE_INFO_INDEX slot.
Bug: v8:7066
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ie1f6134c686a9f2183e54730d9cdd598a9e5ab67
Reviewed-on: https://chromium-review.googlesource.com/785151
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52952}
This reverts commit 2df5e7a7b6.
Reason for revert: Mystery crashes https://bugs.chromium.org/p/chromium/issues/detail?id=838805
Original change's description:
> [parser] Slice the source string where possible
>
> When internalizing string literals (for quoted strings or property names),
> try to create a sliced string of the source string rather than allocating
> a copy of the bytes.
>
> This will not work for string literals that contain escapes (e.g. unicode
> escapes), and currently does not support two-byte strings.
>
> Bug: chromium:818642
> Change-Id: I686e5ad36baecd1a84ce5e124118431249b6c980
> Reviewed-on: https://chromium-review.googlesource.com/1010282
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Reviewed-by: Marja Hölttä <marja@chromium.org>
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52898}
TBR=marja@chromium.org,yangguo@chromium.org,jarin@chromium.org,mlippautz@chromium.org,leszeks@chromium.org,verwaest@chromium.org
Change-Id: I598b6668c43a3e843e2dd8e60852b2b2f3461954
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:818642
Reviewed-on: https://chromium-review.googlesource.com/1039885
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52919}
Original CL: https://crrev.com/c/1018468
During code generation, we generate self-references (i.e. references to
the Code object currently being generated) as references to a temporary
handle. When the final Code object has been allocated, the handle's
location is fixed up and RelocInfo iteration fixes up all references
embedded in the generated code.
This adds support for this mechanism to the builtins constants table
builder. CodeObject() is now a new handle pointing to a dedicated
self-reference marker in order to distinguish between self-references
and references to undefined. In Factory::NewCode, we patch up
the constants table.
TBR=yangguo@chromium.org,mlippautz@chromium.org
Bug: v8:6666
Change-Id: I3fa422c57de99c9851dc7a86394a8387c7c2b397
Reviewed-on: https://chromium-review.googlesource.com/1039366
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52916}
When internalizing string literals (for quoted strings or property names),
try to create a sliced string of the source string rather than allocating
a copy of the bytes.
This will not work for string literals that contain escapes (e.g. unicode
escapes), and currently does not support two-byte strings.
Bug: chromium:818642
Change-Id: I686e5ad36baecd1a84ce5e124118431249b6c980
Reviewed-on: https://chromium-review.googlesource.com/1010282
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52898}
This reverts commit 6379e2a464.
Reason for revert:
https://logs.chromium.org/v/?s=chromium%2Fbb%2Fclient.v8%2FV8_Win64%2F23855%2F%2B%2Frecipes%2Fsteps%2FCheck%2F0%2Flogs%2Fmkgrokdump%2F0
Original change's description:
> [builtins] Patch self-references in constants table
>
> During code generation, we generate self-references (i.e. references to
> the Code object currently being generated) as references to a temporary
> handle. When the final Code object has been allocated, the handle's
> location is fixed up and RelocInfo iteration fixes up all references
> embedded in the generated code.
>
> This adds support for this mechanism to the builtins constants table
> builder. CodeObject() is now a new handle pointing to a dedicated
> self-reference marker in order to distinguish between self-references
> and references to undefined. In Factory::NewCode, we patch up
> the constants table.
>
> Bug: v8:6666
> Change-Id: If74ed91bb1c3b8abb20ff2f0a87d1bcd9a1b0511
> Reviewed-on: https://chromium-review.googlesource.com/1018468
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52854}
TBR=yangguo@chromium.org,mlippautz@chromium.org,jgruber@chromium.org
Change-Id: I8cf8c4b43f51285ea913c6c8fdd339bd9ea645df
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6666
Reviewed-on: https://chromium-review.googlesource.com/1033092
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52856}
During code generation, we generate self-references (i.e. references to
the Code object currently being generated) as references to a temporary
handle. When the final Code object has been allocated, the handle's
location is fixed up and RelocInfo iteration fixes up all references
embedded in the generated code.
This adds support for this mechanism to the builtins constants table
builder. CodeObject() is now a new handle pointing to a dedicated
self-reference marker in order to distinguish between self-references
and references to undefined. In Factory::NewCode, we patch up
the constants table.
Bug: v8:6666
Change-Id: If74ed91bb1c3b8abb20ff2f0a87d1bcd9a1b0511
Reviewed-on: https://chromium-review.googlesource.com/1018468
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52854}
Allocates almost all maps found in the start up snapshot into RO_SPACE.
There are 2 JSObject maps that are excluded as they contain a mutable cell.
Also updates VerifyReadOnlyPointers to check that RO_SPACE objects' maps are
also in RO_SPACE. Previously the invariant did not hold for Strings which still
had their maps in MAP_SPACE.
Also moves invalid_prototype_validity_cell to RO_SPACE.
RO_SPACE NEW_SPACE OLD_SPACE CODE_SPACE MAP_SPACE LO_SPACE
old 22024 0 229184 32928 8184 0
new 31488 0 229184 32928 176 0
Bug: v8:7464
Change-Id: I870d22cc5234ba60b3ef8a2ada590ee6ae426c9f
Reviewed-on: https://chromium-review.googlesource.com/1013494
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52848}
It's old & not used recently & obsolete. It was mainly used for measuring the
effect of preparse data, which we no longer have.
BUG=v8:7570
Change-Id: Ic31958e736fbf9645e014f6ef61dd6cf72a42c76
Reviewed-on: https://chromium-review.googlesource.com/1032390
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52830}
And tweak --depot-tools to go first on PATH
Change-Id: Iee53d84fd028ac0c2de6f872184cbce51e84c54f
Reviewed-on: https://chromium-review.googlesource.com/1028210
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: agrieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52788}
Infra sanity testing after https://crrev.com/c/1019080
TBR=santa
Change-Id: I7cadb6991ed2d9903f8cdd4d21e97f5a058eadf0
Reviewed-on: https://chromium-review.googlesource.com/1027830
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52778}
This CL implements TypedArray.p.sort in Torque. The Torque
version works basically the same as the existing JS builtin:
When no comparison function is provided, the C++ fast path builtin
is used. Otherwise a quicksort written in Torque is used, with
a InsertionSort fallback for smaller arrays.
The JS quicksort implementation also containes a more elaborate
third pivot calculation for larger arrays. This is currently not done.
Reported benchmark results are only for those, where a custom
comparison function is provided. The numbers for the C++ path stayed
the same.
Benchmark Current (JS) Torque Speedup
IntTypes 83.9 263.7 3.1
BigIntTypes 32.1 54.6 1.7
FloatTypes 99.3 138.7 1.4
R=danno@chromium.org, jgruber@chromium.org
Bug: v8:7382
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I7abe7ceff525bab24f302d2f06b5961cca770d24
Reviewed-on: https://chromium-review.googlesource.com/1021691
Commit-Queue: Simon Zünd <szuend@google.com>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52776}
Makes builds go faster by not having to re-run "gn gen" unnecessarily
Also adds a bunch of flags that configure uses.
--max-load
--max-jobs
--extra-gn-args
--depot-tools
--bundled-win-toolchain
NOTRY=true
NOTREECHECKS=true
Change-Id: I6555623468d2b11d188ca29563586f5ea9b4dda9
Reviewed-on: https://chromium-review.googlesource.com/1016582
Commit-Queue: agrieve <agrieve@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52761}
This is a reland of 5728b3fbc5
Original change's description:
> [builtins] Separate species protectors for Array, TypedArray, Promise
>
> Previously, there was one species protector for Array, TypedArray and
> Promise. This CL splits the protector in three separate ones. This means
> that invalidating one of them does not have negative performance
> implications for the other ones.
>
> Bug: chromium:835347, v8:7340
> Change-Id: Id84aa0071f17096192965264eb60ddadd1e8e73f
> Reviewed-on: https://chromium-review.googlesource.com/1023408
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52733}
Bug: chromium:835347, v8:7340
Change-Id: I0c0188a0723e206ddb362834bcf872b23cd7666d
Reviewed-on: https://chromium-review.googlesource.com/1023811
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52742}
This reverts commit 5728b3fbc5.
Reason for revert: Breaks noi18n build
Original change's description:
> [builtins] Separate species protectors for Array, TypedArray, Promise
>
> Previously, there was one species protector for Array, TypedArray and
> Promise. This CL splits the protector in three separate ones. This means
> that invalidating one of them does not have negative performance
> implications for the other ones.
>
> Bug: chromium:835347, v8:7340
> Change-Id: Id84aa0071f17096192965264eb60ddadd1e8e73f
> Reviewed-on: https://chromium-review.googlesource.com/1023408
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52733}
TBR=sigurds@chromium.org,bmeurer@chromium.org
Change-Id: Ied8b436e7991c759eb3b98702c142aa127a7e63c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:835347, v8:7340
Reviewed-on: https://chromium-review.googlesource.com/1024151
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52736}
Previously, there was one species protector for Array, TypedArray and
Promise. This CL splits the protector in three separate ones. This means
that invalidating one of them does not have negative performance
implications for the other ones.
Bug: chromium:835347, v8:7340
Change-Id: Id84aa0071f17096192965264eb60ddadd1e8e73f
Reviewed-on: https://chromium-review.googlesource.com/1023408
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52733}
When attributing ticks to a function, we first check if the current pc
matches a section within the dynamic library. If we find a match here,
then we don't continue looking within dynamically generated range
information, e.g. for JS functions and builtins.
This logic breaks when embedded builtins come into play. They live
within the libv8.so shared library, and are found when looking up
statics. But what we really want is to look up the dynamically
generated code-range, which contains more precise information.
In this CL, this case is detected by matching the found symbol name.
If it's the embedded blob, then we continue to dynamic lookup.
Bug: v8:6666
Change-Id: I7cea2cd4898f5a08381a071bdbc2f862b9c80880
Reviewed-on: https://chromium-review.googlesource.com/1023422
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52723}
This makes testing with random gc stress use the status file entrees
for gc fuzzing as well, since many test cases not suitable for one, are
not suitable for the other.
This also skips two more tests that rely on assert(Un)Optimized, which
is unreliable with gc fuzzing.
TBR=sigurds@chromium.org
Change-Id: I33a617b251d5cf65cf6e486d07ec55cde050b8ab
Reviewed-on: https://chromium-review.googlesource.com/1021082
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52701}
This is relevent for when the only "git" in your PATH is git.bat (from
depot_tools). I'd guess this is pretty common for Googlers.
Bug: v8:5960
Change-Id: I35bc49c6054afed20481ed408cfd02b7a4c346c8
Reviewed-on: https://chromium-review.googlesource.com/1019340
Commit-Queue: agrieve <agrieve@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52698}
Minidumps could potentially contain sensitive information, so we
shouldn't be serving them to the world.
R=machenbach@chromium.org
Change-Id: Idb7a3c07c160e82d707a4abb857e098363da3345
Reviewed-on: https://chromium-review.googlesource.com/1015802
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52670}
This is a reland of f8ae62fe14
Original change's description:
> [heap] Move initial objects into RO_SPACE
>
> This moves:
> * the main oddballs (null, undefined, hole, true, false) as well as
> their supporting maps (also adds hole as an internalized string to make
> this work).
> * most of the internalized strings
> * the struct maps
> * empty array
> * empty enum cache
> * the contents of the initial string table
> * the weak_cell_cache for any map in RO_SPACE (and eagerly creates the
> value avoid writing to it during run-time)
>
> The StartupSerializer stats change as follows:
>
> RO_SPACE NEW_SPACE OLD_SPACE CODE_SPACE MAP_SPACE LO_SPACE
> old 0 0 270264 32608 12144 0
> new 21776 0 253168 32608 8184 0
> Overall memory usage has increased by 720 bytes due to the eager
> initialization of the Map weak cell caches.
>
> Also extends --serialization-statistics to print out separate instance
> type stats for objects in RO_SPACE as shown here:
>
> Read Only Instance types (count and bytes):
> 404 16736 ONE_BYTE_INTERNALIZED_STRING_TYPE
> 2 32 HEAP_NUMBER_TYPE
> 5 240 ODDBALL_TYPE
> 45 3960 MAP_TYPE
> 1 16 BYTE_ARRAY_TYPE
> 1 24 TUPLE2_TYPE
> 1 16 FIXED_ARRAY_TYPE
> 1 32 DESCRIPTOR_ARRAY_TYPE
> 45 720 WEAK_CELL_TYPE
>
> Bug: v8:7464
> Change-Id: I12981c39c82a7057f68bbbe03f89fb57b0b4c6a6
> Reviewed-on: https://chromium-review.googlesource.com/973722
> Commit-Queue: Dan Elphick <delphick@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52435}
Bug: v8:7464
Change-Id: I50427edfeb53ca80ec4cf46566368fb2213ccf7b
Reviewed-on: https://chromium-review.googlesource.com/999654
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52638}
An overview of motivation behind Torque and some of its principles
can be found here: https://bit.ly/2qAI5Ep
Note that there is quite a bit of work left to do in order to get
Torque production-ready for any non-trivial amount of code, but
landing the prototype as-is will allow for much faster iteration.
Bugs will be filed for all of the big-ticket items that are not
landing blockers but called out in this patch as important to fix.
Cq-Include-Trybots: luci.v8.try:v8_linux_nosnap_rel;luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Ib07af70966d5133dc57344928885478b9c6b8b73
Reviewed-on: https://chromium-review.googlesource.com/845682
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52618}
Blacklist two functions that can call casted function pointers, there is
not an easy way to fix these failures yet.
BUG=v8:7164
Change-Id: I895ccb09359d38c95c1ff93e41c306ecb1ad57fc
Reviewed-on: https://chromium-review.googlesource.com/1003226
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52539}
Before Turbofan/Ignition it was possible to use external profilers to
sample running V8/Node.js processes and generate reports/FlameGraphs
from that. It's still possible to do so, but non-optimized JavaScript
functions appear in the stack as InterpreterEntryTrampoline. This commit
adds a runtime flag which makes interpreted frames visible on the
process' native stack as distinguishable functions, making the sampled
data gathered by external profilers such as Linux perf and DTrace more
useful.
R=bmeurer@google.com, franzih@google.com, jarin@google.com, yangguo@google.com
Bug: v8:7155
Change-Id: I3dc8876aa3cd9f1b9766624842a7cc354ccca415
Reviewed-on: https://chromium-review.googlesource.com/959081
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52533}
... to see if it improves things in real-world area.
Change-Id: Icf6a1ff47f35eb3f7e25b549d736f7404148f6ab
Reviewed-on: https://chromium-review.googlesource.com/1004587
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52523}
The Win10 GCE images were recently updated from RS1/14393 to RS2/15063.
Allow tasks triggered via mb to find machines on which to run.
Change-Id: I5a61f7d38d80cb441fa32a4bc9c0c7e23fbba75e
Reviewed-on: https://chromium-review.googlesource.com/1000721
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52488}
This reverts commit f8ae62fe14.
Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20-%20internal%20snapshot/builds/14825
Original change's description:
> [heap] Move initial objects into RO_SPACE
>
> This moves:
> * the main oddballs (null, undefined, hole, true, false) as well as
> their supporting maps (also adds hole as an internalized string to make
> this work).
> * most of the internalized strings
> * the struct maps
> * empty array
> * empty enum cache
> * the contents of the initial string table
> * the weak_cell_cache for any map in RO_SPACE (and eagerly creates the
> value avoid writing to it during run-time)
>
> The StartupSerializer stats change as follows:
>
> RO_SPACE NEW_SPACE OLD_SPACE CODE_SPACE MAP_SPACE LO_SPACE
> old 0 0 270264 32608 12144 0
> new 21776 0 253168 32608 8184 0
> Overall memory usage has increased by 720 bytes due to the eager
> initialization of the Map weak cell caches.
>
> Also extends --serialization-statistics to print out separate instance
> type stats for objects in RO_SPACE as shown here:
>
> Read Only Instance types (count and bytes):
> 404 16736 ONE_BYTE_INTERNALIZED_STRING_TYPE
> 2 32 HEAP_NUMBER_TYPE
> 5 240 ODDBALL_TYPE
> 45 3960 MAP_TYPE
> 1 16 BYTE_ARRAY_TYPE
> 1 24 TUPLE2_TYPE
> 1 16 FIXED_ARRAY_TYPE
> 1 32 DESCRIPTOR_ARRAY_TYPE
> 45 720 WEAK_CELL_TYPE
>
> Bug: v8:7464
> Change-Id: I12981c39c82a7057f68bbbe03f89fb57b0b4c6a6
> Reviewed-on: https://chromium-review.googlesource.com/973722
> Commit-Queue: Dan Elphick <delphick@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52435}
TBR=rmcilroy@chromium.org,yangguo@chromium.org,hpayer@chromium.org,mlippautz@chromium.org,delphick@chromium.org
Change-Id: Ie62a73a5be3b21a15bb46e342acb3e808fbaa4f3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7464
Reviewed-on: https://chromium-review.googlesource.com/999653
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52440}
This moves:
* the main oddballs (null, undefined, hole, true, false) as well as
their supporting maps (also adds hole as an internalized string to make
this work).
* most of the internalized strings
* the struct maps
* empty array
* empty enum cache
* the contents of the initial string table
* the weak_cell_cache for any map in RO_SPACE (and eagerly creates the
value avoid writing to it during run-time)
The StartupSerializer stats change as follows:
RO_SPACE NEW_SPACE OLD_SPACE CODE_SPACE MAP_SPACE LO_SPACE
old 0 0 270264 32608 12144 0
new 21776 0 253168 32608 8184 0
Overall memory usage has increased by 720 bytes due to the eager
initialization of the Map weak cell caches.
Also extends --serialization-statistics to print out separate instance
type stats for objects in RO_SPACE as shown here:
Read Only Instance types (count and bytes):
404 16736 ONE_BYTE_INTERNALIZED_STRING_TYPE
2 32 HEAP_NUMBER_TYPE
5 240 ODDBALL_TYPE
45 3960 MAP_TYPE
1 16 BYTE_ARRAY_TYPE
1 24 TUPLE2_TYPE
1 16 FIXED_ARRAY_TYPE
1 32 DESCRIPTOR_ARRAY_TYPE
45 720 WEAK_CELL_TYPE
Bug: v8:7464
Change-Id: I12981c39c82a7057f68bbbe03f89fb57b0b4c6a6
Reviewed-on: https://chromium-review.googlesource.com/973722
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52435}
Various fixes necessary to get the script working with V8 6.6
Upstreamed from https://github.com/nodejs/node/pull/19201
Change-Id: Ic7819eb17cf4be8380b8c1811e569236244e7400
Reviewed-on: https://chromium-review.googlesource.com/996858
Commit-Queue: Myles Borins <mborins@google.com>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52421}
This is a small step towards making node build on Windows.
Bug: v8:6105
R=machenbach@chromium.org
Change-Id: I8d3a9b1830bb012d846a791fddc8d1d8d830515e
Reviewed-on: https://chromium-review.googlesource.com/980950
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52400}
This CL allows builtin continuations to handle pending exceptions.
This implements exception handling for the promise constructor in
case of deoptimization.
Bug: v8:7584
Change-Id: Ib5df5eb6606abb3f9690f294397981858dbdbf25
Reviewed-on: https://chromium-review.googlesource.com/983912
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52340}
This change implements the WebAssembly.Global object and constructor,
but none of the accessors or functions.
There is a new flag to enable this: --experimental-wasm-mut-global.
Change-Id: Ifeb270d57392d7ca0900c80c0038932c96ee8b61
Reviewed-on: https://chromium-review.googlesource.com/989296
Commit-Queue: Ben Smith <binji@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52335}
Makes CallHandlerInfo its own instance type, with an additional
map to distinguish side-effect-free handlers. In a followup, we
can expose an API flag to set the map.
This CL does not support whitelisting calls to ObjectTemplates
that use SetCallAsFunctionHandler().
Bug: v8:7515
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ie32fe144046a9fae3e3b1ea5602b0da3db8a5616
Reviewed-on: https://chromium-review.googlesource.com/965741
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Erik Luo <luoe@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52328}
Also annotate maps with the space, now that this can be RO_SPACE as well
as MAP_SPACE.
Bug: v8:7464
Change-Id: Id597b2195c179b38f93b0e1c6b2ce9ef04e4f0e4
Reviewed-on: https://chromium-review.googlesource.com/980554
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52251}
Since the flags are used for more than just giving hints to the
compiler, the name isn't appropriate anymore.
Change-Id: I4b2f87a117490e7f1e1a693394e46633e751b444
Reviewed-on: https://chromium-review.googlesource.com/982012
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52245}
This is a reland of 6da438fda1
Original change's description:
> [runtime] introduced instrance type for each context type
>
> Each context type get own instance type:
> - we can make CSA checks more strict in couple places,
> - it is requires step for advanced evaluation without side effects.
>
> R=yangguo@chromium.org
>
> Bug: v8:7588
> Change-Id: I585e8b55a280a909fc3c6069ed30e34b7040d0c7
> Reviewed-on: https://chromium-review.googlesource.com/977041
> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52191}
Bug: v8:7588
Change-Id: I80110ff814c0315d7ca694b7d0aef5b10df614f0
Reviewed-on: https://chromium-review.googlesource.com/978584
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52196}
This reverts commit 6da438fda1.
Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug/builds/18287
Original change's description:
> [runtime] introduced instrance type for each context type
>
> Each context type get own instance type:
> - we can make CSA checks more strict in couple places,
> - it is requires step for advanced evaluation without side effects.
>
> R=yangguo@chromium.org
>
> Bug: v8:7588
> Change-Id: I585e8b55a280a909fc3c6069ed30e34b7040d0c7
> Reviewed-on: https://chromium-review.googlesource.com/977041
> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52191}
TBR=yangguo@chromium.org,mstarzinger@chromium.org,kozyatinskiy@chromium.org
Change-Id: I17a24b5b99552941d7a8ec54ebf6d11d6d1a66d8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7588
Reviewed-on: https://chromium-review.googlesource.com/977974
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52193}
Each context type get own instance type:
- we can make CSA checks more strict in couple places,
- it is requires step for advanced evaluation without side effects.
R=yangguo@chromium.org
Bug: v8:7588
Change-Id: I585e8b55a280a909fc3c6069ed30e34b7040d0c7
Reviewed-on: https://chromium-review.googlesource.com/977041
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52191}
This is the V8 equivalent to https://crrev.com/2779193002 and must be landed
before //build/secondary/{gtest,gmock} are removed from Chromium. This started
out as https://crrev.com/2847693002
The changes in tools/ were authored by yangguo@chromium.org and
initially shared in http://crrev.com/2849783003.
GoogleTest (gtest) and GoogleMock (gmock) are now hosted into the same
googletest repository. In order to cope with this, the googletest
repository is now sourced at third_party/googletest.
The file/directory layout of Google Test is not yet considered stable.
To minimize disruption while Google Test stabilizes, Chromium code will
be insulated from third_party/googletest.
* testing/gtest/include/gtest/ and testing/gmock/include/gmock have
been populated with headers that forward into the appropriate
locations of third_party/googletest
* testing/BUILD.gn has been populated with the targets
//testing/gtest(:gtest_main) and //testing/gmock(:gmock_main),
which depend on the appropriate //third_party/googletest targets.
All Chromium code should keep depending on the targets and
headers in testing/{gtest,gmock} for now.
BUG=chromium:630705
Change-Id: I12b07ae78c8039aeff6ada7a3335e4e2b5d308ab
Reviewed-on: https://chromium-review.googlesource.com/639953
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52170}
This is a reland of d8f564eac6TBR=mstarzinger@chromium.org,yangguo@chromium.org,jgruber@chromium.org
Original change's description:
> Reland: Remove SFI code field
>
> Remove the SharedFunctionInfo code field, inferring the code object
> from the function_data field instead. In some cases, the function_data
> field can now hold a Code object (e.g. some WASM cases).
>
> (Reland of https://chromium-review.googlesource.com/952452)
>
> TBR=mstarzinger@chromium.org
>
> Bug: chromium:783853
> Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
> Change-Id: I10ea5be7ceed1b51362a2fad9be7397624d69343
> Reviewed-on: https://chromium-review.googlesource.com/970649
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52136}
Bug: chromium:783853
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I5187851b923e9a92f43daf8cb99e662786cbb839
Reviewed-on: https://chromium-review.googlesource.com/975942
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52159}
Remove the SharedFunctionInfo code field, inferring the code object
from the function_data field instead. In some cases, the function_data
field can now hold a Code object (e.g. some WASM cases).
(Reland of https://chromium-review.googlesource.com/952452)
TBR=mstarzinger@chromium.org
Bug: chromium:783853
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I10ea5be7ceed1b51362a2fad9be7397624d69343
Reviewed-on: https://chromium-review.googlesource.com/970649
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52136}
This adds 5% testing of 'ignition' vs 'liftoff', which tests Turbofan vs
Liftoff for wasm code, and tests Ignition vs Turbofan for javascript
code.
It also adds 3% testing of 'liftoff' (x64) vs 'liftoff' (ia32), which
does standard x64 vs ia32 testing for javascript code.
R=machenbach@chromium.org
Bug: chromium:824098, v8:6600
Change-Id: I6a6afae0300efc33f3535541a11695a7bb32dcc5
Reviewed-on: https://chromium-review.googlesource.com/973161
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52111}
Embedded builtins are now based off the v8_enable_embedded_builtins
gn flag instead, which conditionally defines V8_EMBEDDED_BUILTINS.
Bug: v8:6666
Change-Id: I44d40d30fce3a3ed9bbf973d46c4990ba3fade40
Reviewed-on: https://chromium-review.googlesource.com/964361
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52092}
Remove the SharedFunctionInfo code field, inferring the code object
from the function_data field instead. In some cases, the function_data
field can now hold a Code object (e.g. some WASM cases).
Bug: chromium:783853
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I1219a4d6aa5abaa9fee54dda883da7a3186e347a
Reviewed-on: https://chromium-review.googlesource.com/952452
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52064}
This is a reland of 40d66d8bf8
The fix disambiguates duplicate symbols in the generated embedded
builtins file.
Original change's description:
> [build] Make separate snapshot for trusted variant
>
> This enables side-by-side snapshots with and without untrusted-code
> mitigations. It'll be the default in all V8 stand-alone builds
> with external startup data. Internal snapshots are not supported.
>
> The files snapshot_blob.bin and snapshot_blob_trusted.bin will be
> bundled with V8 on swarming and the correct file is loaded dependent
> on the --untrusted-code-mitigations runtime flag.
>
> Likewise we embed two snapshots for builtins.
>
> Side-by-side snapshots won't be supported in Chromium.
>
> Bug: v8:7441
> Change-Id: I2949ddfd5773649946b1c8e74751d48ad1d9c524
> Reviewed-on: https://chromium-review.googlesource.com/960004
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52028}
Bug: v8:7441
Change-Id: I626171d4e07389f0453b4d0a698e2772fd37e8c5
Reviewed-on: https://chromium-review.googlesource.com/968623
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52055}
For problems with the current approach, see crbug.com/v8/7564.
We can instead gather all weak references in code in VisitEmbeddedPointer.
BUG=v8:7564, v8:7308
Change-Id: Ib369e7ab9efd62c90bdac69835318929c58217f2
Reviewed-on: https://chromium-review.googlesource.com/968250
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52041}
This reverts commit 40d66d8bf8.
Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8%20Mac64/builds/20910
Original change's description:
> [build] Make separate snapshot for trusted variant
>
> This enables side-by-side snapshots with and without untrusted-code
> mitigations. It'll be the default in all V8 stand-alone builds
> with external startup data. Internal snapshots are not supported.
>
> The files snapshot_blob.bin and snapshot_blob_trusted.bin will be
> bundled with V8 on swarming and the correct file is loaded dependent
> on the --untrusted-code-mitigations runtime flag.
>
> Likewise we embed two snapshots for builtins.
>
> Side-by-side snapshots won't be supported in Chromium.
>
> Bug: v8:7441
> Change-Id: I2949ddfd5773649946b1c8e74751d48ad1d9c524
> Reviewed-on: https://chromium-review.googlesource.com/960004
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52028}
TBR=rmcilroy@chromium.org,machenbach@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,jgruber@chromium.org
Change-Id: I5b18f7aff7c05a17842fc68d785bb617eeca4a41
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7441
Reviewed-on: https://chromium-review.googlesource.com/968622
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52029}
This enables side-by-side snapshots with and without untrusted-code
mitigations. It'll be the default in all V8 stand-alone builds
with external startup data. Internal snapshots are not supported.
The files snapshot_blob.bin and snapshot_blob_trusted.bin will be
bundled with V8 on swarming and the correct file is loaded dependent
on the --untrusted-code-mitigations runtime flag.
Likewise we embed two snapshots for builtins.
Side-by-side snapshots won't be supported in Chromium.
Bug: v8:7441
Change-Id: I2949ddfd5773649946b1c8e74751d48ad1d9c524
Reviewed-on: https://chromium-review.googlesource.com/960004
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52028}
With this CL the name of an SFI is either stored directly on the SFI
itself (for uncompiled ones) or on the related ScopeInfo if present.
- Combine scope_info and name field on SFI into name_or_scope_info field
- Change the name of a couple of SFI accessors: name => Name,
has_shared_name => HasSharedName, set_name => SetName
- Add Runtime::kGetFunctionName due to more complex SFI name accessing
Bug: v8:7066
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Idcce158446c9447b92d9a15125d086952c6e0824
Reviewed-on: https://chromium-review.googlesource.com/964201
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52001}
The feature in question has been enabled by default for a while and we
no longer need to maintain a configuration without it enabled. Note that
this change only removes the mechanical pieces. Further cleanup enabled
by this will be done as follow-ups.
R=clemensh@chromium.org
BUG=v8:7549
Change-Id: I90e5bcddabe74a18a4d2a88132e8dc93317bcff4
Reviewed-on: https://chromium-review.googlesource.com/958424
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Michael Hablich <hablich@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51883}
Previously we used a FixedArray for the FeedbackMetadata, packing bits
of information into Smi fields. On 64-bit platforms, we waste at least
half of the available memory by using the Smi representation.
Given that this is just raw data (no pointers), we can just use a new
type that uses the existing packing scheme to store the data in int32
format instead.
This CL changes FeedbackMetadata to a new subclass of HeapObject. This
is to reduce the API surface exposed, in comparison to extending/using
a more general purpose data structure like ByteArray, which is also just
raw data.
FeedbackMetadata only exposes general purpose methods for accessing
slots, but hides the implementation detail of packing bits into int32
fields.
This CL also introduces a sentinal EmptyFeedbackMetadata, because there
are ~750 empty FeedbackMetadata objects when running an empty program in
V8. These are probably for builtins.
Bug: v8:7500
Change-Id: Ic85563153abbd71a22854cee8519260c32b1e9ab
Reviewed-on: https://chromium-review.googlesource.com/945730
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51842}
This adds a global protector to guard the lookup of "resolve" on the
%Promise% intrinsic object (the initial Promise constructor), making
sure that Promise.resolve yields the initial builtin method. We use
this protector to avoid the lookup of "resolve" all the time inside
of Promise.all and Promise.race, when called with constructor being
the %Promise% intrinsic object.
This improves the performance on the parallel-async-es2017-native
benchmark by roughly 2-3%.
Bug: v8:7253
Change-Id: Ida93b88afbaeae61f17be4cd30ea6a78b4267cea
Reviewed-on: https://chromium-review.googlesource.com/955564
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51810}
... and use Smi Map::kPrototypeChainValid for the cases where direct receiver's
prototype is not JSObject instead of creating a new valid cell for each such
case. This will make a validity cell checking code simpler.
Bug: v8:5988
Change-Id: I52cf55797171cc8021d80e4e441615d0c8fc8bd4
Reviewed-on: https://chromium-review.googlesource.com/951384
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51803}
We now unconditionally both parse and compile StreamedSource on the background
thread.
BUG=v8:5203
Change-Id: I42d6fe9059bc1745da3a415d270f46cf1c08b306
Reviewed-on: https://chromium-review.googlesource.com/948854
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51758}
- Provide sorted instance type contribution per GC
- Visualize percentages per InstanceType based on the selected GC
- Visualize percentags per category
- Use some more arrow functions
- Introduce helper.js file
Bug: v8:7266
Change-Id: I26099cc64d9545b2de9e4574da2faf52d54ad198
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/949222
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51743}
This makes sure that the object can be identified by a unique instance
type and hence is not accidentally confused with other FixedArrays on
the heap.
R=clemensh@chromium.org
BUG=v8:7509
Change-Id: I20521cdcabbbddecd89ca8cd4bb203a47e1db0cd
Reviewed-on: https://chromium-review.googlesource.com/946253
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51730}
This changes the JSArrayIterator to always have only a single instance
type, instead of the zoo of instance types that we had before, and
which became less useful with the specification update to when "next"
is loaded from the iterator now. This greatly simplifies the baseline
implementation of the array iterator, which now only looks at the
iterated object during %ArrayIteratorPrototype%.next invocations.
In TurboFan we introduce a new JSCreateArrayIterator operator, that
holds the IterationKind and get's the iterated object as input. When
optimizing %ArrayIteratorPrototype%.next in the JSCallReducer, we
check whether the receiver is a JSCreateArrayIterator, and if so,
we try to infer maps for the iterated object from there. If we find
any, we speculatively assume that these won't have changed during
iteration (as we did before with the previous approach), and generate
fast code for both JSArray and JSTypedArray iteration.
Drive-by-fix: Drop the fast_array_iteration protector, it's not
necessary anymore since we have the deoptimization guard bit in
the JSCallReducer now.
This addresses the performance cliff noticed in webpack 4. The minimal
repro on the tracking bug goes from
console.timeEnd: mono, 124.773000
console.timeEnd: poly, 670.353000
to
console.timeEnd: mono, 118.709000
console.timeEnd: poly, 141.393000
so that's a 4.7x improvement.
Also make presubmit happy by adding the missing #undef's.
Bug: v8:7510, v7:7514
Change-Id: I79a46bfa2cd0f0710e09365ef72519b1bbb667b5
Reviewed-on: https://chromium-review.googlesource.com/946098
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51725}
This enables the v8_enable_embedded_builtins gn flag on non-ia32 builds
and adds a new --stress-off-heap-code test mode to fyi bots.
v8_enable_embedded_builtins=true changes accesses to constants and
external references to go through the root list in builtins code.
--stress-off-heap-code copies builtins code off-heap on isolate
creation.
A few drive-by-fixes:
- ensure that we actually inspect the correct builtin during
isolate-independence testing.
- relax tests to decrease maintenance (now we only fail if a builtin
should be isolate-independent but isn't).
- switch to a different off-heap-trampoline register on arm due to
conflicts with custom stub linkages.
Cq-Include-Trybots: luci.v8.try:v8_linux64_fyi_rel_ng
Bug: v8:6666
Change-Id: I09ad3c75cb4342f4c548ea780f275993730896c8
Reviewed-on: https://chromium-review.googlesource.com/934281
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Hablich <hablich@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51717}
... and use it in the implementation of array literal spreads,
replacing calls to %AppendElement.
Array spreads in destructuring will be taken care of in a separate CL.
Bug: v8:5940, v8:7446
Change-Id: Idec52398902a7fd3c1244852cf73246f142404f0
Reviewed-on: https://chromium-review.googlesource.com/915364
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51709}
- Add B/KiB/MiB units to histograms
- Auto select fileReader to open dialog when pressing enter
Bug: v8:7266
Change-Id: I6fa56d2fa112f6ddbd541304cd26a1f6bd9322ce
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/946128
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51693}
This makes sure that the object can be identified by a unique instance
type and hence is not accidentally confused with other FixedArrays on
the heap.
R=clemensh@chromium.org
BUG=v8:7509
Change-Id: Ib3dcdb4559821d0ad9ca8cced37754e0e3c1d578
Reviewed-on: https://chromium-review.googlesource.com/943781
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51687}
This makes sure that the object can be identified by a unique instance
type and hence is not accidentally confused with other FixedArrays on
the heap.
R=clemensh@chromium.org
BUG=v8:7509
Change-Id: I66e3d779ff9a323b64f5464bdd5fe02aefe468c6
Reviewed-on: https://chromium-review.googlesource.com/943442
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51665}
This is a first step towards using Maps as store transition handlers.
It is expected for this CL to noticeably regress memory consumption
but most of it should be recovered by the next CL.
Bug: v8:5988
Change-Id: Ic2e301f9ccebc36e699383ded8c8cd284a906ce1
Reviewed-on: https://chromium-review.googlesource.com/928646
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51663}
Introducing a new status-file variable: mips_arch_variant. With this
variable, in status files will be possible to define selections which
are based on MIPS architecture revisions/variants.
TEST=
BUG=
Change-Id: Ifd682552db2f26be4e56dc94ad50bed063ff14c5
Reviewed-on: https://chromium-review.googlesource.com/941212
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Cr-Commit-Position: refs/heads/master@{#51647}
Fuzzers after switching to ToT mjsunit.js, which accesses
Date.prototype, while for correctness fuzzing it's mocked out as a
proxy.
This makes the proxy return the property correctly.
TBR=yangguo@chromium.org
NOTRY=true
Bug: chromium:813833
Change-Id: Ic4b6412063f42c4e75905fbd568b7f81bc54daff
Reviewed-on: https://chromium-review.googlesource.com/936046
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51539}
This adds printing on failures to compare output when correctness fuzzing.
TBR=yangguo@chromium.org
NOTRY=true
Bug: chromium:813833
Change-Id: I0280561392f6614960608db4e93341552c716142
Reviewed-on: https://chromium-review.googlesource.com/934843
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51529}
This migrates harness adjustments, to be loaded after mjsunit.js on
fuzzers for correctness fuzzing.
This is the first step adding deeper pretty printing. Other
adjustments will be added in follow ups.
Bug: chromium:813833
Change-Id: I51168a31e733d54808cb8853a1c90e897acf3791
Reviewed-on: https://chromium-review.googlesource.com/930565
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51481}
We'll soon also host other configurations for general fuzzing, not only
correctness fuzzing in the new tools/clusterfuzz folder.
TBR=yangguo@chromium.org
Bug: chromium:813833
Change-Id: Icd966bfec91cc547522bad5d1a842500b554754f
Reviewed-on: https://chromium-review.googlesource.com/930331
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51480}
This is preparatory cleanup work for eventually tracking the functions
(rather than concrete closures) in the CALL_IC, also for builtins like
the default PromiseCapability [[Resolve]] and [[Reject]] functions. It
adds a new FeedbackCell type, which is used by JSFunctions consistently
now to reference the feedback vector (or undefined if not the function
is not compiled yet or is a native/asm.js function).
This also changes the calling convention for FastNewClosure builtin and
the JSCreateClosure operator in TurboFan to carry the FeedbackCell here
instead of the parent FeedbackVector and the slot index. In addition we
eliminate the now unused %InterpreterNewClosure runtime function.
Bug: v8:2206, v8:7253, v8:7310
Change-Id: Ib4ce456e276e0273e57c163dcdd0b33abf863656
Reviewed-on: https://chromium-review.googlesource.com/928403
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51474}
We don't use parser caches anymore and request code caches
explicitly using ScriptCompiler::CreateCodeCache. Hence
removing the support for both parser cache and code cache options.
They are still retained in CompileOptions for backwards
compatibility. Apart from the api.cc, no other part should see
this option.
Bug: chromium:779254, chromium:783124
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ic8ad9afe3fa44bbb5adc71bdde59c0b4057a523d
Reviewed-on: https://chromium-review.googlesource.com/916261
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51416}
Before, configurations were chosen on clusterfuzz side. This migrates
the choice to the V8 repo, to enable easier changing it and to allow
sharing it between different fuzzers.
NOTRY=true
TBR=sergiyb@chromium.org
Bug: chromium:813833
Change-Id: I9890a36fd6aab171d3e13172fc55b274f189e532
Reviewed-on: https://chromium-review.googlesource.com/927681
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51410}
This is a partial revert of:
https://crrev.com/c/890938 and https://crrev.com/c/893982
Before this CL, the test runner blocked on ongoing tests in order to
process their results after an internal timeout. However, the logic
required for this feature was overly complicated and prevented an
acceptable implementation for fast aborts. Furthermore, also the fuzzers
suffered from timeouts on swarming due to hanging tests.
Instead, we now abort immediately on internal timeout (used on
fuzzers), SIGINT (Ctrl-C) and SIGTERM. Ongoing tests are immediately
terminated and their results are disregarded. On SIGTERM and SIGINT,
we return with non-zero exit codes, and zero on internal timeout.
This will also properly return json output, when the external hard
timeout is reached on swarming (causes SIGTERM).
TBR=sergiyb@chromium.org
Bug: v8:7423, chromium:813065
Change-Id: Ib20f835f58a0970693bdd3b21dc5d766d8e115d8
Reviewed-on: https://chromium-review.googlesource.com/924852
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51399}
This is a reland of dda0419ecd.
Originally reviewed-on: https://chromium-review.googlesource.com/914513
and landed as refs/heads/master@{#51342}.
Bug: v8:6791
Change-Id: I3b3a069da7a0e64c38a81b3110dc5ece4887cb19
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/924665
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51352}
The corresponding gclient variables are set now via:
https://crrev.com/c/913368
Bug: chromium:772804
Change-Id: I9c96bde3e6cc88d84a320c00d3316a91c48749f7
Reviewed-on: https://chromium-review.googlesource.com/913351
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51240}
This reverts commit 9808093ef6.
Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20debug/builds/19149
Original change's description:
> Update test configurations for code serializer
>
> Update test configurations on the bots to test for serializing
> after execute (--cache=after-execute) and producing full code
> cache (--cache=full-code-cache) options. We no longer need
> to test serializing before execute (--cache=code) on the bots.
>
> Bug: v8:7302
> Change-Id: I123b07028d9231f6da6145b72b62b9ee31352388
> Reviewed-on: https://chromium-review.googlesource.com/869931
> Commit-Queue: Mythri Alle <mythria@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51235}
TBR=machenbach@chromium.org,yangguo@chromium.org,mythria@chromium.org
Change-Id: I47e03101804194c21b0edf418b744b0ccb66cbf6
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7302
Reviewed-on: https://chromium-review.googlesource.com/913134
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51236}
Update test configurations on the bots to test for serializing
after execute (--cache=after-execute) and producing full code
cache (--cache=full-code-cache) options. We no longer need
to test serializing before execute (--cache=code) on the bots.
Bug: v8:7302
Change-Id: I123b07028d9231f6da6145b72b62b9ee31352388
Reviewed-on: https://chromium-review.googlesource.com/869931
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51235}
This was removed on the infra side:
https://crrev.com/c/912831TBR=sergiyb@chromium.org
Bug: chromium:772804
Change-Id: Icf0a33c2c1294edbc957c7e0e4aa78268997ae10
Reviewed-on: https://chromium-review.googlesource.com/913210
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51233}
The suppression flag must be set before loading the tests to have an effect.
This got turned around in https://crrev.com/c/899366 and is fixed again by
this CL.
TBR=sergiyb@chromium.org
NOTRY=true
Bug: v8:6917
Change-Id: Ie58465288a0d6eec9a99a23d610710de9e1cdddd
Reviewed-on: https://chromium-review.googlesource.com/911114
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51209}
This new variant is executed on a small number of bots as part of the
"extra" suite. It checks that the wasm-jit-to-native flag can still be
disabled if unexpected failures pop up on a release branch.
R=machenbach@chromium.org
Bug: v8:7417
Change-Id: I1658cb2f04302fa80915b59bfedd85d980742db5
Reviewed-on: https://chromium-review.googlesource.com/909213
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51204}
Timeouts on num-fuzzer only lead to false positives, as tests might
take unpredictably longer.
This CL forgives timeouts through a global override mechanism of the
expected outcomes. This allows to remove already existing scattered
code that allowed timeouts in some test suites only.
Bug: v8:6917
Change-Id: Ib131765d360e335789c1952bc6793ed051e016ea
Reviewed-on: https://chromium-review.googlesource.com/908454
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51188}
This reverts commit 14108f4c2e.
Reason for revert: Not the culprit for Canary microtask crashes
Original change's description:
> [builtins] Mega-revert to address the Dev blocker in crbug.com/808911.
>
> - Revert "[builtins] Save one word in contexts for Promise.all."
> This reverts commit 7632da067b.
> - Revert "[builtins] Also use the Promise#then protector for Promise#finally()."
> This reverts commit d4f072ced3.
> - Revert "[builtins] Don't mess with entered context for MicrotaskCallbacks."
> This reverts commit 6703dacdd6.
> - Revert "[debugger] Properly deal with settled promises in catch prediction."
> This reverts commit 40dd065823.
> - Revert "[builtins] Widen the fast-path for Promise builtins."
> This reverts commit db0556b7e8.
> - Revert "[builtins] Unify PerformPromiseThen and optimize it with TurboFan."
> This reverts commit a582199c5e.
> - Revert "[builtins] Remove obsolete PromiseBuiltinsAssembler::AppendPromiseCallback."
> This reverts commit 6bf8885290.
> - Revert "[builtins] Turn NewPromiseCapability into a proper builtin."
> This reverts commit 313b490ddd.
> - Revert "[builtins] Inline InternalPromiseThen into it's only caller"
> This reverts commit f7bd6a2fd6.
> - Revert "[builtins] Implement Promise#catch by really calling into Promise#then."
> This reverts commit b23b098fa0.
> - Revert "[promise] Remove incorrect fast path"
> This reverts commit 0f6eafe855.
> - Revert "[builtins] Squeeze JSPromise::result and JSPromise::reactions into a single field."
> This reverts commit 8a677a2831.
> - Revert "[builtins] Refactor promises to reduce GC overhead."
> This reverts commit 8e7737cb58.
>
> Tbr: hpayer@chromium.org
> Bug: chromium:800651, chromium:808911, v8:5691, v8:7253
> Change-Id: I8c8ea5ed32ed62f6cd8b0d027a3707ddd891e5f1
> Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
> Reviewed-on: https://chromium-review.googlesource.com/906991
> Commit-Queue: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Adam Klein <adamk@chromium.org>
> Reviewed-by: Adam Klein <adamk@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51158}
Change-Id: I09d958cbebd635a325809072a290f2f53df8c5d4
Tbr: adamk@chromium.org,yangguo@chromium.org,bmeurer@chromium.org
Bug: chromium:800651, chromium:808911, v8:5691, v8:7253
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/908988
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51181}
This enables compiling V8 stand-alone for mips (big endian)
on an ia32 host with gn args:
custom_toolchain="//:mips-bundled"
v8_use_snapshot=false
v8_enable_i18n_support=false
icu_use_data_file=false
is_debug=false
target_cpu="mips"
Bug: chromium:632390
Change-Id: I0b59126d742a2979dd0fcbcdd3a574008a09479a
Reviewed-on: https://chromium-review.googlesource.com/904990
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51167}
- Revert "[builtins] Save one word in contexts for Promise.all."
This reverts commit 7632da067b.
- Revert "[builtins] Also use the Promise#then protector for Promise#finally()."
This reverts commit d4f072ced3.
- Revert "[builtins] Don't mess with entered context for MicrotaskCallbacks."
This reverts commit 6703dacdd6.
- Revert "[debugger] Properly deal with settled promises in catch prediction."
This reverts commit 40dd065823.
- Revert "[builtins] Widen the fast-path for Promise builtins."
This reverts commit db0556b7e8.
- Revert "[builtins] Unify PerformPromiseThen and optimize it with TurboFan."
This reverts commit a582199c5e.
- Revert "[builtins] Remove obsolete PromiseBuiltinsAssembler::AppendPromiseCallback."
This reverts commit 6bf8885290.
- Revert "[builtins] Turn NewPromiseCapability into a proper builtin."
This reverts commit 313b490ddd.
- Revert "[builtins] Inline InternalPromiseThen into it's only caller"
This reverts commit f7bd6a2fd6.
- Revert "[builtins] Implement Promise#catch by really calling into Promise#then."
This reverts commit b23b098fa0.
- Revert "[promise] Remove incorrect fast path"
This reverts commit 0f6eafe855.
- Revert "[builtins] Squeeze JSPromise::result and JSPromise::reactions into a single field."
This reverts commit 8a677a2831.
- Revert "[builtins] Refactor promises to reduce GC overhead."
This reverts commit 8e7737cb58.
Tbr: hpayer@chromium.org
Bug: chromium:800651, chromium:808911, v8:5691, v8:7253
Change-Id: I8c8ea5ed32ed62f6cd8b0d027a3707ddd891e5f1
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/906991
Commit-Queue: Yang Guo <yangguo@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51158}
This makes it easier to restart an aborted merge.
R=machenbach@chromium.org
TEST=ran tools/release/script_test.py locally
Bug: v8:7410
Change-Id: I26b1b09e0000c9c689ad80be32ced9e35634bcec
Reviewed-on: https://chromium-review.googlesource.com/905665
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51143}
Modify "run_perf.py --filter Array/" so that it will let match "Array" but
not "ArrayLiteralSpread". Previously --filter Array/ would match nothing.
Change-Id: I1f9c677e3558fc2256a71306af5fc1a8394ac698
Reviewed-on: https://chromium-review.googlesource.com/895453
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51098}
This adds a new isolate wide Promise#then protector, which guards the
"then" lookup for all JSPromise instances whose [[Prototype]] is the
initial %PromisePrototype%. Thus arbitrary mutations to the
Promise.prototype (i.e. monkey-patching other methods or installing
new functions) no longer sent you down the slow-path. Use this protector
in Promise.prototype.catch and in Promise.resolve.
Drive-by-fix: Restructure the resolve logic a bit and avoid the
expensive and large SameValue check, which can be turned into a simple
reference equal, as the promise in there is known to be a JSPromise
anyways.
Bug: v8:7253
Change-Id: If68b12c6bc6ca9c4d10552ae84854ebc3b5774f9
Reviewed-on: https://chromium-review.googlesource.com/899302
Commit-Queue: Benedikt Meurer <bmeurer@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@{#51085}
This check verifies that all .h files in the src/ directory have an
include guard of the form
#ifndef V8_PATH_TO_FILE_H_
#define V8_PATH_TO_FILE_H_
// ...
#endif // V8_PATH_TO_FILE_H_
The check can be skipped with a magic comment:
// PRESUBMIT_INTENTIONALLY_MISSING_INCLUDE_GUARD
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I0a7b96abec289ad60f64ba8418f1892a6969596d
Reviewed-on: https://chromium-review.googlesource.com/897487
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51079}
