Avoid writing NumberOfElements to HashTable when it hasn't changed as
the HashTable could be in RO_SPACE and this operation will crash.
Bug: v8:841592
Change-Id: Iffadd567fc10aa9cd13d953da81275464b16c6c0
Reviewed-on: https://chromium-review.googlesource.com/1052693
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53116}
When collecting the values of an object with Smi or Object elements
kind, there are no allocations, so we don't need to create a short-
lived handle for each value. This gives a small performance benefit
in general, and in particular on ia32 by reducing register pressure
causes clang to spill less, which fixes the regression in the issue
mentioned below.
Bug: chromium:833591
Change-Id: I5eb0c6164b2972306ce965ec101687cab486bf0d
Reviewed-on: https://chromium-review.googlesource.com/1029417
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52825}
By using memmove for SMI elements we get a roughly 3x speedup over the slower
iterative copying with write barriers.
Bug: chromium:835558
Change-Id: I73da07a1648a3495ff78212ffa1ed949d205a7d2
Reviewed-on: https://chromium-review.googlesource.com/1028236
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52792}
There is no good reason to have the meat of most objects' initialization
logic in heap.cc, all wrapped by the CALL_HEAP_FUNCTION macro. Instead,
this CL changes the protocol between Heap and Factory to be AllocateRaw,
and all object initialization work after (possibly retried) successful
raw allocation happens in the Factory.
This saves about 20KB of binary size on x64.
Original review: https://chromium-review.googlesource.com/c/v8/v8/+/959533
Originally landed as r52416 / f9a2e24bbc
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Id072cbe6b3ed30afd339c7e502844b99ca12a647
Reviewed-on: https://chromium-review.googlesource.com/1000540
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52492}
MUST_USE_RESULT was deprecated for some time. This removes it and
replaces all uses by the equivalent V8_WARN_UNUSED_RESULT.
R=mstarzinger@chromium.org
Bug: v8:7570
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I86883218638e64eeeb7a5891904319ed0844a004
Reviewed-on: https://chromium-review.googlesource.com/999533
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52486}
This reverts commit f9a2e24bbc.
Reason for revert: gc stress failures not all fixed by follow up.
Original change's description:
> [cleanup] Refactor the Factory
>
> There is no good reason to have the meat of most objects' initialization
> logic in heap.cc, all wrapped by the CALL_HEAP_FUNCTION macro. Instead,
> this CL changes the protocol between Heap and Factory to be AllocateRaw,
> and all object initialization work after (possibly retried) successful
> raw allocation happens in the Factory.
>
> This saves about 20KB of binary size on x64.
>
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: Icbfdc4266d7be8b48d2fe085f03411743dc6a0ca
> Reviewed-on: https://chromium-review.googlesource.com/959533
> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52416}
TBR=jkummerow@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,hpayer@chromium.org
Change-Id: Idbbc53478742f3e9525eee83342afc6aedae122f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/999414
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52420}
There is no good reason to have the meat of most objects' initialization
logic in heap.cc, all wrapped by the CALL_HEAP_FUNCTION macro. Instead,
this CL changes the protocol between Heap and Factory to be AllocateRaw,
and all object initialization work after (possibly retried) successful
raw allocation happens in the Factory.
This saves about 20KB of binary size on x64.
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Icbfdc4266d7be8b48d2fe085f03411743dc6a0ca
Reviewed-on: https://chromium-review.googlesource.com/959533
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52416}
Previously, Strings without an iterator would go to the runtime path
and fail on because it expected a JSReceiver type. This was in-line
with what the elements accessor expected. We can actually handle all
object types in the final slow path (using LookupIterator) so it is no
problem to change the accept types.
Bug: chromium:816289
Change-Id: Iebb8de0bb7551aee3894c8a23836d079c93726a7
Reviewed-on: https://chromium-review.googlesource.com/937461
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51574}
I loosened the DCHECKs here but I think they are still fundamentally
safe: `length` must be <= the actual length of the source (so that
there are actually enough elements to copy), and `length` must also be
<= the destination length, minus the offset (so there is enough space
to copy the elements into).
Bug: chromium:816317
Change-Id: Ice00ac60f4884363f6065ffee71f6ab1d1b32dbc
Reviewed-on: https://chromium-review.googlesource.com/937209
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51566}
- Use CallCFunction to call C implementation of copying elements for
slice, instead of Runtime call
- Copy elements without allocating handles when copying different types
of typed arrays
Bug: v8:5929
Change-Id: Icd4fed8846542e71b623e600ba9aaac64062f0d4
Reviewed-on: https://chromium-review.googlesource.com/920563
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51415}
Factor out IterableToList into a helper stub to save space. There are
two callers now, TypedArrayFrom and ConstructByIterable, and it is
~2.5kb so we save space by doing this.
Increase test coverage to cover more of the branching in CSA.
This is doesn't follow the control flow in the spec exactly - see the
big code comment for an explanation.
Change-Id: Ief39e93c4202cb7bf0e28a39dc6aa81b8b9c59d2
Reviewed-on: https://chromium-review.googlesource.com/908755
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51377}
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}
Removes the overhead of Zone allocating temporary space
that only slightly improved performance of the overlap
(less common) case.
Bug: chromium:808360
Change-Id: Ic92f20f15decb12b916ee23267debd9adc785ee0
Reviewed-on: https://chromium-review.googlesource.com/904462
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Wong <peter.wm.wong@gmail.com>
Cr-Commit-Position: refs/heads/master@{#51119}
A check will fail if the context passed in is not a native context.
Change the code to get the native context from the passed context.
Bug: chromium:804288
Change-Id: Iad314a3dd170355cf524b9230a692a6329564f8a
Reviewed-on: https://chromium-review.googlesource.com/878324
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50761}
- Remove CSA fallback to runtime for overlap cases
- Move overlap handling from runtime into elements.cc
Depending on typed array size (and overlap size), quick measurements
show a 4.3x - 8x improvement. This fixes large >5x performance
cliff between overlap and non-overlap cases.
https://github.com/peterwmwong/v8-perf/blob/master/typedarray-set-overlap-fast-c-call/README.md
Bug: v8:5929
Change-Id: I47758d2ee603bc26f38dd9112567113cf887f5d5
Reviewed-on: https://chromium-review.googlesource.com/846378
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Wong <peter.wm.wong@gmail.com>
Cr-Commit-Position: refs/heads/master@{#50578}
Drive-by-cleanup:
- Add InternalElementsAccessor to expose protected instance methods
to ElementsAccessor subclasses.
- Make some more ElementsAccessor methods protected that take the
raw entry as parameter.
Bug: chromium:798644
Change-Id: Iffd00f1953461e8dd22c123e62298410fb6e049c
Reviewed-on: https://chromium-review.googlesource.com/856816
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50480}
This prefixes the flag to be more uniform with existing flags and makes
it available as a gn argument.
The switch feature is enabled on a subset of bots, the linux64 release
trybot and all sanitizers. Note, this doesn't switch to slow paths -
it just allows to use the runtime flag on those bots.
Bug: v8:7120
Change-Id: I706a7a9bd503c13d5432cac9a13a909f4f32a0a7
Reviewed-on: https://chromium-review.googlesource.com/798412
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49739}
Ensure that bound-checking CHECKs do not overflow and properly access
the JSTypedArray's length value.
This addresses remaining comments from
https://crrev.com/c/788857/9/src/runtime/runtime-typedarray.cc#233
Bug: v8:3590
Change-Id: Ic06ff2ecd64a23ab9724c25d7b6cb689b9e7932b
Reviewed-on: https://chromium-review.googlesource.com/796611
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49719}
Pull most JSTypedArray source arguments onto the fast path.
Same source & target elements-kinds simply call memmove. Other
combinations call directly into C and reuse ElementsAccessor logic.
Only overlapping source & target args with differing elements-kinds
remain on the slow runtime path.
Bug: v8:7123, v8:3590
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I80284b61478b0e3266b8f16bde8a56bd90f080b0
Reviewed-on: https://chromium-review.googlesource.com/788857
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49643}
Introduce new runtime flag that forces to always use
slow path for regex, promise and array builtins. It
works in DEBUG or with new compile time flag
ENABLE_FASTSLOW_SWITCH.
It will be used in the fast/slow path fuzzer or as a
testing variant to ensure that slow path implementation
behave equivalent to corresponding fast paths (where
applicable).
Bug: v8:7120
Change-Id: Ia2a4ab7aca5051e852723782c529bd2e8e5925ca
Reviewed-on: https://chromium-review.googlesource.com/787291
Commit-Queue: Michał Majewski <majeski@google.com>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49642}
This adds a fast path that avoids the runtime transition for JSArray
source arguments with {packed,holey} {smi,double} elements kinds.
The fast path currently calls straight into C and copies there using
elements accessor logic.
Local tests show a 4x speedup when copying from 1-element JSArrays.
As the source array becomes larger, the time spent copying elements
begins to dominate.
Bug: v8:3590
Change-Id: I05ebe54d7b255d0a76ad46ac11ce7cfd516b8ac8
Reviewed-on: https://chromium-review.googlesource.com/789010
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49634}
The "array protector" now guards the Object.prototype, the
Array.prototype and the String.prototype, so the name was a
bit misleading nowadays. So the new name "no elements protector"
was chosen.
Bug: v8:6936, v8:7014, v8:7027
Change-Id: I9a9d7caa2caf0ac9e78cc6658de2f0506970dfa2
Reviewed-on: https://chromium-review.googlesource.com/778162
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49471}
This adds support to the KeyedLoadIC to ignore out of bounds accesses
for Strings and return undefined instead. We add a dedicated bit to the
Smi handler to encode the OOB state and have TurboFan generate appropriate
code for that case as well. This is mostly useful when programs
accidentially access past the length of a string, which was observed and
fixed for example in Babel recently, see
https://github.com/babel/babel/pull/6589
for details. The idea is to also extend this mechanism to Arrays and
maybe other receivers, as reading beyond the length is also often used
in jQuery and other popular libraries.
Note that this is considered a mitigation for a performance cliff and
not a general optimization of OOB accesses. These should still be
avoided and handled properly instead.
This seems to further improve the babel test on the web-tooling-benchmark
by around 1%, because the OOB access no longer turns the otherwise
MONOMORPHIC access into MEGAMORPHIC state.
Bug: v8:6936, v8:7014
Change-Id: I9df03304e056d7001a65da8e9621119f8e9bb55b
Reviewed-on: https://chromium-review.googlesource.com/744022
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49049}
Previously, V8's slice was implemented in a combination of C++ and a
Javascript fallback. The disadvantage of this approach was that the
fast-path required a call through the CEntryStub, which introduced
considerable overhead for small arrays with fast elements kinds.
Now the implementation primarily uses the CSA to generate both the
full spec-complaint implementation as well as fast paths for argument
objects and arrays with fast elements kinds. The CSA implementation
uses a C++ implementation fallback in select situations where the the
complexity of a CSA implementation would be too great and the
CEntryStub overhead is not decisive (e.g. slices of dictionary
elements arrays).
Performance results on semi-random arrays with small number of
elements (old vs. new):
smi copy: 48.7 ms vs. 12 ms
smi slice: 43.5 ms 14.8 ms
object copy: 35.5 ms 7.7 ms
object slice: 38.7 ms 8.8 ms
dictionary slice: 2398.3 ms vs. 5.4 ms
fast sloppy arguments slice: 9.6 ms vs. 7.2 ms
slow sloppy arguments slice: 28.9 ms vs. 8.5 ms
As a bonus, the new implementation is fully spec-compliant and fixes
at least one existing bug.
The design document for Array.prototype builtin rework can be found
at https://goo.gl/wFHe2n
Bug: v8:1956,v8:6601,v8:6710,v8:6978
Change-Id: Ia0155bedcf39b4577605ff754f416c2af938efb7
Reviewed-on: https://chromium-review.googlesource.com/574710
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48853}
- Fix a wrong type casting triggered when a given array's length is zero
- Add a regression test case
Bug: chromium:777182, chromium:768775
Change-Id: I615b73e9d7bad657c872c96c7a204efe355d8289
Reviewed-on: https://chromium-review.googlesource.com/732865
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48821}
Replace GetElement and SetElement to Get and Set, and use CopyElements,
which reduces 4x-13x overheads.
Bug: chromium:768775
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I58534b30c2035195c5f4b8f2c04e7c459bdbebaa
Reviewed-on: https://chromium-review.googlesource.com/720661
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48723}
This CL fixes all occurences that don't require special OWNER reviews,
or can be reviewed by Michi.
After this one, we should be able to reenable the readability/check
cpplint check.
R=mstarzinger@chromium.org
Bug: v8:6837, v8:6921
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng;master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: Ic81d68d5534eaa795b7197fed5c41ed158361d62
Reviewed-on: https://chromium-review.googlesource.com/721120
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48670}
New code should use nullptr instead of NULL.
This patch updates existing use of NULL to nullptr where applicable,
making the code base more consistent.
BUG=v8:6928,v8:6921
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng;master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I4687f5b96fcfd88b41fa970a2b937b4f6538777c
Reviewed-on: https://chromium-review.googlesource.com/718338
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48557}
It's quite common today to use Function#apply together with typed
arrays, for example to construct a String from character codes (or code
points) within a Uint8Array or Uint16Array, i.e.
String.fromCharCode.apply(undefined, uint8array)
is seen quite often on the web. But there are other interesting cases
like
Math.max.apply(undefined, float64array)
to compute the maximum value in a Float64Array, which is definitely not
the fastest implementation, but quite convenient and readable.
Unfortunately these cases hit the super-slow-path of the Function#apply
machinery in V8 currently, because Function#apply doesn't have any
fast-path for TypedArrays.
This CL adds a proper fast-path to CreateListFromArrayLike to the
ElementsAccessor, which can be used as long as the typed array that's
passed wasn't neutered. With this fast-path in place, the performance on
the micro-benchmark mentioned in the issue improves from
stringFromCharCode: 6386 ms.
stringFromCodePoint: 8752 ms.
to
stringFromCharCode: 1932 ms.
stringFromCodePoint: 4262 ms.
which corresponds to a 2.0x-3.3x improvement.
Bug: v8:2435
Change-Id: I4d39666e53644b11d5856982b005928e26f296fe
Reviewed-on: https://chromium-review.googlesource.com/657405
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47936}
The V8 API provides interceptors. They are not part of the
EcmaScript specification. But their behavior should be consistent.
For example, when an EnumeratorInterceptor is defined, Object.keys(),
Object.entries(), and Object.values() should all have the
same number of entries.
This CL creates consistent behavior among these
functions. If a QueryCallback is present, it is used to
filter the result from the EnumeratorCallback for
enumerable properties.
Bug: v8:6627
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I4f4271ddeb99a5e85918148c5033923c149b9468
Reviewed-on: https://chromium-review.googlesource.com/649786
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Franziska Hinkelmann <franzih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47831}
It caused crashes in the extension process on Canary.
This reverts commit b6059a67ca.
Also revert followup test CL:
"[api] Add test for EnumeratorCallback and for...in."
as it depends on the logic in the reverted change.
This reverts commit 56772de7f9.
Bug: chromium:757371, v8:6627
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Id110128e6dc858a5a60ffc0175e8bb927b90bfc5
Reviewed-on: https://chromium-review.googlesource.com/626720
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47522}
The V8 API provides interceptors. They are not part of the
EcmaScript specification. But their behavior should be consistent.
For example, when an EnumeratorInterceptor is defined, Object.keys(),
Object.entries(), and Object.values() should all have the
same number of entries.
This CL creates consistent behavior among these
functions. If a QueryCallback is present, it is used to
filter the result from the EnumeratorCallback for
enumerable properties.
Bug: v8:6627
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ie51e69bb77099d9fafc4b1ea02671eced610edba
Reviewed-on: https://chromium-review.googlesource.com/609068
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Franziska Hinkelmann <franzih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47442}
Remove the include of frames.h in isolate.h and the include of
frames-inl.h from various places, e.g. architecture-specific builtin
files.
R=yangguo@chromium.org
Bug:
Change-Id: If8d13188474702fd0b0c298f8e45ef393184b877
Reviewed-on: https://chromium-review.googlesource.com/600212
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47154}
The problem popped up when passing the constants by reference
(https://chromium-review.googlesource.com/c/565141).
It's a bit ugly, but, the C++11 standard requires a definition
additionally to the existing declaration in the body of the class:
9.4.2/4: If a static data member is of const literal type, its
declaration in the class definition can specify a
brace-or-equal-initializer in which every initializer-clause that is
an assignment-expression is a constant expression. A static data
member of literal type can be declared in the class definition with
the constexpr specifier; if so, its declaration shall specify a
brace-or-equal-initializer in which every initializer-clause that i
an assignment-expression is a constant expression. [Note: In both
these cases, the member may appear in constant expressions. — end
note] The member shall still be defined in a namespace scope if it is
odr-used (3.2) in the program and the namespace scope definition shall
not contain an initializer.
Drive-by: Make the static constants constexpr.
R=bmeurer@chromium.org
Change-Id: Idc3d20bf2adf31d874c23ff8bfec52437789160a
Reviewed-on: https://chromium-review.googlesource.com/567506
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46599}
This adds a convenience method for the common Smi to int conversion
pattern.
Bug:
Change-Id: I7d7b171c36cfec5f6d10c60f1d9c3e06e3aed0fa
Reviewed-on: https://chromium-review.googlesource.com/563205
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Andreas Rossberg <rossberg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46516}
`IsHoleyElementsKind` doesn’t just check for holeyness — it checks for
dictionary elements as well. Its name should reflect that.
This patch renames `IsHoleyElementsKind` to
`IsHoleyOrDictionaryElementsKind`, which makes it possible to rename
`IsFastHoleyElementsKind` to `IsHoleyElementsKind` in a future patch.
R=jkummerow@chromium.org, cbruni@chromium.org
BUG=v8:6548
Change-Id: Id799fe396442e9810426145359254d60990f8492
Reviewed-on: https://chromium-review.googlesource.com/558344
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46367}
