The semantics of that method are not obvious (it returns an empty
MaybeHandle if the element is undefined, otherwise it assumes it is of
type T). Since there is only a single use of that method in the whole
code base, just having that logic there explicitly is much simpler.
Potential future uses of that method are probably also easier to
understand if they just to the checks explicitly.
Drive-by: Document semantics of {FixedArray::GetValueChecked}. Also for
this method it's quesionable whether it is useful overall.
Drive-by^2: Avoid else after return (see style guide).
R=mstarzinger@chromium.org
Bug: v8:9183
Change-Id: I88dcb0f080d728bbe55932f17cf4d7eb25ab5928
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619761
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61686}
This is just for convenience, and actually surprising behavior.
R=clemensh@chromium.org
Bug: v8:9183
Change-Id: I3316856e63b97bfb06da897c6f8b716bc988aa36
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1621932
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61684}
This is a reland of 3dd5661204
The reland introduces a new flag "--experimental-stack-trace-frames".
The flag is disabled by default, but enabled for relevant tests.
The flag stays disabled by default until API frames are eagerly
symbolized to prevent leaks in blink web tests.
Original change's description:
> [stack-trace] Include API functions in Error.stack stack trace
>
> This CL extends Error.stack to include frames of functions declared
> with the C++ FunctionTemplate API. For example, "print" in d8.
>
> Two changes are necessary:
> - HandleApiCall and friends need to go through an BUILTIN_EXIT frame
> instead of an EXIT frame. The existing stack-trace machinery will
> then pick up FunctionTemplate frames without additional changes.
> - Turbofan doesn't go through HandleApiCall, but instead uses an
> ASM builtin to enter FunctionTemplate functions. A "marker"
> frame state is needed to include these frames in the stack trace.
>
> Note: This CL only includes these frames in Error.stack,
> but not (yet) in the stack-trace API (v8.h).
>
> Bug: v8:8742,v8:6802
> Change-Id: Ic0631af883cf56e0d0122a2e0c54e36fed324d91
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1609835
> Commit-Queue: Simon Zünd <szuend@chromium.org>
> Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61602}
Bug: v8:8742, v8:6802
Change-Id: I1d3b79cdf0b2edcbaeff1ec15e10deeca725f017
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1621925
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61683}
This parameter was just for convenience but did not end up in the
generated bytes.
R=clemensh@chromium.org
Bug: v8:9183
Change-Id: Id4faf5b9ad20a357c069c3189db6ed14945dea8c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1621929
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61681}
Inputs to JSON can be two-byte because payload strings can contain two-byte
characters, without actually having any one-byte property key. Rather than
eagerly converting the string to one-byte, we can perform a string-table lookup
with a two-byte string key; only converting the result to one-byte if it's a
new key.
This speeds up json parsing of two-byte json from the Youtube benchmark by 20%.
Change-Id: If6d4a37d331724f48b008aef8ec3e28d366cd038
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619866
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61680}
Factory::NewStackFrameInfo was leaving fields with the default
initialization to 'undefined' for fields marked as Smi type in base.tq.
Our heap verifier dutifully found and reported the discrepancy. This CL
initializes all fields of the struct to values compatible with the Torque
specification. In the future, this should probably be done automatically.
Change-Id: I30c2e2830300d9d84af663384dd7e0283ec39b77
Bug: chromium:965042
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1621928
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61679}
It has previously been moved to gni/
R=machenbach@chromium.org
Change-Id: If838616d28b9eaaea2bff0496a1ad2535845f420
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1621926
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61678}
This CL also removes the corresponding intrinsic lowering of
IsTypedArray in TurboFan and Ignition.
Drive-by: Remove unused ArrayBufferViewWasDetached runtime function.
Bug: v8:9183
Change-Id: I2767b22fbdfb679cba30b9fbc555c8d41c7f4345
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617930
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61677}
Bug: v8:9247
Change-Id: I9bcf2694b449f79cdbe03f5fde59cb21b8cad418
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619758
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61676}
Macros are now inaccessible from CSA except if their declaration is
marked with the "export" keyword. The implicit field accessors for class
fields are always exported.
In this CL, unwarranted access from CSA is prevented by appending a
pseudo-random suffix to non-exported names. This is to be replaced by
something more principled, namely by not including these macros at all in
the headers included from CSA.
Bug: v8:7793
Change-Id: I3ffb2e91a616623f81b4b4508e001ad0cf65d2c2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1615258
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61672}
When reconfigure data field (e.g. change representation), it was allowed to transition from dictionary elements kind to sealed elements kind. With this change, this transition is forbidden.
Bug: chromium:963346
Change-Id: I6c9a5f6f269bc5ee4cd6176ff5e8d803f08dba1f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1613840
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61670}
When the 'disabled-by-default-v8.gc' category is enabled, emit an instant event
with heap statistics after every GC. The data that's emitted is the same as what
the V8 API gives you with `GetHeapStatistics()` and `GetHeapSpaceStatistics()`.
We generate JSON with the following format:
```
{
"isolate": "0x55dd5cf03b50",
"id": 1,
"time_ms": 42.619,
"total_heap_size": 3981312,
"total_heap_size_executable": 573440,
"total_physical_size": 2820440,
"total_available_size": 2195254440,
"used_heap_size": 1799616,
"heap_size_limit": 2197815296,
"malloced_memory": 251024,
"external_memory": 2981,
"peak_malloced_memory": 589280,
"spaces": [
{
"name": "read_only_space",
"size": 262144,
"used_size": 32568,
"available_size": 229256,
"physical_size": 32888
},
{
"name": "new_space",
"size": 2097152,
"used_size": 903392,
"available_size": 143904,
"physical_size": 1856136
},
...
]
}
```
Bug: v8:9186
Change-Id: I0d07aa37b65d45778d6b47dbe6e07a9dd25d1097
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619763
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Pierre Langlois <pierre.langlois@arm.com>
Cr-Commit-Position: refs/heads/master@{#61667}
This test needs detailed source positions which aren't available with
lazy source positions enabled so force them to always be present.
Bug: v8:8510
Change-Id: I1faf3d5614742b4181facc18eaf1d73d6a5712d6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617677
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Auto-Submit: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61663}
Previously, compiling with perfetto would add 2.3 MiB to the d8 release
binary. With this change it's 472 KiB.
This is because trace:lite pulls in many more compiled proto classes
than we need, e.g. a bunch of stuff under ftrace/ which is only used
on Android.
Chrome uses a 'mirror proto' ChromeTrackPacket to only provide
compiled protos for the types of packets it will actually see, which on
non-android devices does not include anything under ftrace/.
We use the same trick here in the JSON consumer.
Cq-Include-Trybots: luci.v8.try:v8_linux64_perfetto_dbg_ng
Bug: v8:8339
Change-Id: Iae1f74eec3bd93b18e9f069701fc016440d3ce5e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619759
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61662}
The read_only_object_cache call cannot return a vector when it is backed
by the embedded heap, so this adds a few methods to abstract this away.
ExtendReadOnlyObjectCache will eventually have a check to reject adding
objects to the embedded read-only object cache.
Prior to this change the read-only object cache would only be extended
conditionally if needed. Since it started out empty it was always
extended, so this removes this logic.
Bug: v8:7464
Change-Id: I5b172f629ac48be5cbb8f78b03a0a213ebd570e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619745
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
Cr-Commit-Position: refs/heads/master@{#61661}
This adds two more message tests to test compile errors in
WebAssembly.compileStreaming and WebAssembly.instantiateStreaming.
R=mstarzinger@chromium.org
Bug: v8:9266
Change-Id: I34d1df4ce0fb02e14f3e5011569c8ba1d1374658
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619746
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61660}
This adds proper loading and parsing of the arguments that are being
passed to the {WebAssembly.Function} constructor function, including
tests covering most of the negative cases.
R=jkummerow@chromium.org
TEST=mjsunit/wasm/type-reflection
BUG=v8:7742
Change-Id: Id4d67789604ee72aec5ad831004a01434c1c6d6f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619748
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61659}
ASAN on Windows uses exceptions to manage its shadow memory. However,
this behavior can conflict with WebAssembly trap handler, because
WebAssembly trap handler are executed before the ASAN exception handler.
For some WebAssembly instructions we do not generate assembly code but
call to C functions instead. Since these functions are very simple, we
do not want to reset the thread-in-wasm flag before calling them.
However, when these functions trigger the ASAN exceptions, the
thread-in-wasm flag gets out-of-sync. This happened for the
memory_fill_wrapper function. Originally we thought that it's sufficient
to just mark the function with DISABLE_ASAN. However, this is not enough
because clang compiles the function to use memset, and memset gets
replaced by ASAN with asan_memset.
Therefore I decided now that just for sanitizer builds on Windows, we
reset the thread-in-wasm flag in memory_fill_wrapper. This is not ideal
because it's test-specific code within production code. However, the
alternatives also don't sound convincing.
Alternatives would be:
* Resetting the thread-in-wasm flag whenever we call a c-function
- This would be unnecessary performance overhead for production code
just to make a test work.
* Configure ASAN to not change memset.
- This would weaken ASAN also for other cases.
* Disable ASAN for trap handlers, or trap handlers in ASAN builds.
- This would reduce test coverage.
R=binji@chromium.org
Bug: chromium:957405
Change-Id: Ibd13c6fe7b898238f636db576552e3e4b278c04a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617671
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ben Smith <binji@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61658}
The invariant is that Map::bit_field2 shouldn't change, and the
IsInRetainedMapListBit apparently changes when the map is held
weakly from optimized code. This causes TurboFan compilations to
change the Map::Hash() result, which in turn causes lookups on
the normalized map cache to miss (and maybe other bad consequences).
With this change we swap Map::IsInRetainedMapListBit (previously in
bit_field2) and Map::HasHiddenPrototypeBit (previously in bit_field3)
to address this problem.
Bug: chromium:963411, v8:9114, v8:9267
Change-Id: I040a27c37305fa602649750bd93bee40c91fca78
Cq-Include-Trybots: luci.chromium.try:linux-rel,win7-rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619747
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61657}
Recently* a second ResolveRenames appeared in
typed-optimization.cc. In some extreme (non-default) jumbo
builds that file shared translation unit (and thus anonymous
namespace) with load-elimination.cc which also has a
ResolveRenames which is slightly different.
To avoid that name clash and failed compilation, this
renames ResolveRenames -> ResolveRenamesForOpt.
*) It appeared in
https://chromium-review.googlesource.com/c/v8/v8/+/1609803
Change-Id: Ia175468a8e978e93e95da1d28f74cee8dce253d2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1615465
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Auto-Submit: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#61655}
This fixes the error message generated for compile errors during
asynchronous instantiation. It shows "WebAssembly.instantiate()" now
instead of "WebAssembly.compile()".
R=mstarzinger@chromium.org
Bug: v8:9266
Change-Id: Ieae478d1c4f6843fbc17e15debb6c49f72059d99
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617940
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61654}
This adds three message tests to test the message stack trace we show
for
- synchronous compilation,
- asynchronous compilation, and
- asynchronous instantiation.
Note that the message for the asynchronous cases currently contain the
"WebAssembly.Module()" prefix, which will be fixed in a separate CL.
R=mstarzinger@chromium.org
Bug: v8:9266
Change-Id: I370f4211b5f577ea1b5da026a78b292b50c6a339
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617938
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61653}
This also fixes a bug in 'InitializeCallBuffer', where it wouldn't claim enough
slots for each parameter. This caused the Simd128 instruction selector test to
only claim 3 slots (rather than 4) and then perform an unnecessary padding poke.
v8_Default_embedded_blob_size from the generated file gen/embedded.S
Before: 4957056
After: 4954368
This gives a 0.05% size decrease.
Change-Id: Ic9bb998fb8a9111fb90e1c3e537ea0f2a5fa7b33
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617665
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
Cr-Commit-Position: refs/heads/master@{#61649}
Added the comparison of two decompresses to the DecompressionElimination
AdvancedReducer. Note that it works in the case that lhs is equal to rhs.
Also added tests for its implementation.
Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Bug: v8:8977, v8:7703
Change-Id: I21676a78b592859692768c3499ea11117d3bb5a5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1609793
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61647}
Fixes the crash stated in the chromium bug.
We weren't decompressing before CheckMap which resulted in a crash.
Implemented the same for CompareMap.
Bug: chromium:963917
Change-Id: I1dcaf6845758c7266bbc7d9ecc9e43cf8d6b639a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617252
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61646}
Now that we introduced the Compressed representation, we can simply use
AccessBuilder::ForMap. AccessBuilder::ForCompressedMap was introduced
as a placeholder previously.
Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Bug: v8:8977, v8:7703
Change-Id: I15b559c27641e6a673862c86be176e259835308e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617664
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61645}
This CL also removes "HasComplexElements" helpers on JSReceiver
and NumberDictionary.
Drive-by: Remove unused SmiLexicographicCompare runtime function.
The C++ funtion is still used, but it is entered using a fast
C call from Array#sort.
Bug: v8:9183
Change-Id: Ibb5d54cca623486806587bc90506af8d97910dc2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617929
Commit-Queue: Simon Zünd <szuend@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Simon Zünd <szuend@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61644}
COMPLETE events are being deprecated and don't work well with perfetto
because we can't give out a handle into the buffer like we used to so
that the caller can update the existing event with the duration.
BEGIN/END pairs should be used instead to add two separate trace events
to the buffer which can be associated with one another by the trace
processor e.g. the trace viewer UI.
Cq-Include-Trybots: luci.v8.try:v8_linux64_perfetto_dbg_ng
Bug: v8:8339
Change-Id: Ib73c19d77ad58456ce23d15f0b658c26f3dc3d53
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1615257
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61641}
These were leftover in another directory and can be incorporated into
our standard benchmark runner. We already had some Array slice cases
in js-perf-test so just add some of the important cases from the other
directory to the existing implementation.
Bug: v8:9254
Change-Id: I4cc235b8d3719ecd729f23fe9705ea36d445c340
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617258
Auto-Submit: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61640}
This reverts commit 3dd5661204.
Reason for revert: causes leak tests in blink layout tests to fail: https://ci.chromium.org/p/chromium/builders/ci/WebKit%20Linux%20Trusty%20Leak/34295
Steps to reproduce:
- Build blink_tests with following GN args
is_component_build = false
is_debug = false
strip_absolute_paths_from_debug_symbols = true
- Run
third_party/blink/tools/run_web_tests.py --additional-expectations third_party/blink/web_tests/LeakExpectations --time-out-ms 48000 --enable-leak-detection external/wpt/wasm/webapi/body.any.html
Original change's description:
> [stack-trace] Include API functions in Error.stack stack trace
>
> This CL extends Error.stack to include frames of functions declared
> with the C++ FunctionTemplate API. For example, "print" in d8.
>
> Two changes are necessary:
> - HandleApiCall and friends need to go through an BUILTIN_EXIT frame
> instead of an EXIT frame. The existing stack-trace machinery will
> then pick up FunctionTemplate frames without additional changes.
> - Turbofan doesn't go through HandleApiCall, but instead uses an
> ASM builtin to enter FunctionTemplate functions. A "marker"
> frame state is needed to include these frames in the stack trace.
>
> Note: This CL only includes these frames in Error.stack,
> but not (yet) in the stack-trace API (v8.h).
>
> Bug: v8:8742,v8:6802
> Change-Id: Ic0631af883cf56e0d0122a2e0c54e36fed324d91
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1609835
> Commit-Queue: Simon Zünd <szuend@chromium.org>
> Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61602}
TBR=yangguo@chromium.org,sigurds@chromium.org,jgruber@chromium.org,bmeurer@chromium.org,szuend@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:8742, v8:6802
Change-Id: I4942cd32c6ee5e249dae046eea6b9b2f7120b8ba
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617933
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61639}
Code that is being moved primarily deal with layout of a JSObject,
accessing properties and elements, and map transitions.
NOTREECHECKS=true
NOTRY=true
Bug: v8:9247
Change-Id: Ibce5d5926ac4021c8d40c4dd109948775ce1da58
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1613994
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61638}
This is a reland of e7e512da66
Original change's description:
> [turbofan] Add fast path for single-character String#startsWith()
>
> This CL adds a fast path to String#startsWith(s) if s is a
> single character string.
>
> Bug: v8:8400
> Change-Id: Ibd6a9d1e46d98f41c198d2b579208e25003eedb0
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1525362
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61504}
Bug: v8:8400
Change-Id: Ic2d60ccb8fdeb51373fcd025a7e970fda0c14d79
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1618342
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61637}
